Resource determination method and communication apparatus

Abstract

Provided in the embodiments of the present application are a resource determination method and a communication apparatus. The method comprises: determining a first frequency and / or a second frequency, and determining a correspondence between M frequency domain resources for frequency hopping and N time units on the basis of the first frequency and / or the second frequency. The N time units are used for sending or receiving reference signals, the first frequency is the lowest frequency domain location of frequency domain resources occupied by sending or receiving the reference signals, the second frequency is the highest frequency domain location of the frequency domain resources occupied by sending or receiving the reference signals, M is an integer greater than 1, and N is an integer greater than 1. In this way, a correspondence between M frequency domain resources for frequency hopping and N time units can be determined by means of a first frequency and / or a second frequency, such that frequency hopping resources for sending or receiving reference signals are uniquely determined, thereby avoiding interference.

Description

Resource determination method and communication device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on August 4, 2023, with application number 202310984678.7 and application name “Resource Determination Method and Communication Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communications, and in particular to a resource determination method and a communication device. Background Art

[0003] To improve positioning accuracy in bandwidth-constrained positioning scenarios, frequency hopping can be used to transmit reference signals (RS). By sending reference signals at multiple frequency hopping moments, the equivalent bandwidth of the reference signals can be increased, thereby improving channel estimation accuracy. For example, a terminal device can send narrow-bandwidth reference signals to a network device at multiple moments, and the network device can then receive multiple narrow-bandwidth reference signals. By processing these multiple narrow-bandwidth reference signals (e.g., joint processing), the network device can obtain an equivalent large-bandwidth reference signal, thereby improving channel estimation accuracy.

[0004] Currently, the 3rd Generation Partnership Project (3GPP) Technical Standard (TS) 38.211 defines the frequency hopping configuration information for the sounding reference signal (SRS). Terminal devices can send SRS based on this frequency hopping configuration information, and network devices can perform channel estimation based on the SRS. The obtained channel estimation results can be used for communication or positioning. However, in some positioning scenarios, this frequency hopping configuration information cannot meet the requirements of high-precision positioning.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a resource determination method and a communication device, which can avoid interference and thus meet the high-precision positioning requirements of positioning scenarios.

[0007] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0008] In a first aspect, a resource determination method is provided, which can be executed by a first device, or by a component of the first device, such as a processor, chip, or chip system of the first device, or by a logic module or software that can implement all or part of the functions of the first device. The following is an illustration of the method being executed by the first device. The method includes: determining a first frequency and / or a second frequency, and determining, based on the first frequency and / or the second frequency, a correspondence between M frequency domain resources for frequency hopping and N time units. The N time units are used to send or receive a reference signal, the first frequency is the lowest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, the second frequency is the highest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, M is an integer greater than 1, and N is an integer greater than 1.

[0009] Since in an embodiment of the present application, the first device can determine the first frequency and / or the second frequency, and determine the correspondence between M frequency domain resources used for frequency hopping and N time units, the frequency hopping resources for sending or receiving reference signals can be uniquely determined to avoid sending or receiving reference signals on the same frequency hopping resources with other devices, thereby avoiding interference and helping to improve positioning accuracy.

[0010] In one possible implementation, the first device may be a terminal device, or a module or unit of a terminal device. For example, the first device may be a chip, a chip system, a chip circuit, or a circuit of the terminal device. The terminal device may be a reduced capability terminal device, such as a reduced capability (REDCAP) terminal device, or an ordinary terminal device. That is, for the first device to send a reference signal, it is applicable to an uplink frequency hopping positioning scenario, that is, the first device can determine the correspondence between M frequency domain resources for sending reference signals and N time units, and determine the frequency hopping pattern for sending reference signals to the network device based on the correspondence. In this way, the frequency hopping resources for sending reference signals can be uniquely determined to avoid sending reference signals to the network device on the same frequency hopping resources as other devices, thereby avoiding interference. It can be understood that the first device receiving a reference signal is also applicable to the network device sending a narrowband reference signal (e.g., a positioning reference signal PRS with a bandwidth of 20 MHz) to the terminal device over multiple time units, and the first device receives the narrowband reference signal from the network device over multiple time units. That is to say, the first device can determine the correspondence between the M frequency domain resources for sending the reference signal and the N time units, and determine the frequency hopping pattern for receiving the reference signal from the network device based on the correspondence. In this way, the frequency hopping resource for receiving the reference signal from the network device can be uniquely determined to avoid receiving the reference signal from the network device on the wrong frequency hopping resource.

[0011] In one possible implementation, the first device may be a network device, or a module or unit of a network device. For example, the first device may be a chip, a chip system, a chip circuit, or a circuit of a network device. That is, the first device may determine the correspondence between M frequency domain resources for sending reference signals and N time units, and determine the frequency hopping pattern for sending reference signals based on the correspondence, so that the frequency hopping resources for sending reference signals by the first device to the terminal device can be uniquely determined, thereby enabling the terminal device to receive the reference signal. Furthermore, the first device can save power consumption by sending the reference signal in a frequency hopping manner to meet the energy-saving requirements of the first device. Therefore, in the embodiment of the present application, while meeting the energy-saving requirements of the network device, the positioning accuracy can be further improved. Of course, ordinary terminal devices can also periodically send reference signals with a large bandwidth, and the network device can receive the reference signal in an overlapping frequency hopping or non-overlapping frequency hopping manner to reduce the power consumption and reception complexity of the network device.

[0012] In one possible implementation, M may be equal to N. That is, the first device may send a reference signal in one time unit. Different time units correspond to different frequency domain resources, or the time units correspond to the frequency domain resources one-to-one.

[0013] In one possible implementation, M may be greater than N. That is, the first apparatus may send multiple reference signals in one time unit through multiple different frequency domain resources. The time units corresponding to different frequency domain resources may be the same, or multiple frequency domain resources may correspond to the same time unit.

[0014] In one possible implementation, M may be smaller than N. That is, the first device may send a reference signal occupying the same frequency domain resource over multiple time units. The frequency domain resources corresponding to different time units may be the same, or multiple time units may correspond to the same frequency domain resource.

[0015] In one possible implementation, N time units may be time units for transmitting N reference signals within a reference signal hopping pattern period. The N in the N time units may refer to the number of frequency hops in a hopping pattern. The N time units are time units for transmitting N reference signals, where each of the N time units is used to transmit one reference signal. That is, within a hopping pattern period, one reference signal may be transmitted at each hopping moment.

[0016] It can be understood that the reference signals sent or received in the above N time units are for the same device or apparatus.

[0017] In one possible implementation, determining a correspondence between M frequency domain resources for frequency hopping and N time units based on a first frequency and / or a second frequency includes: determining N frequency domain resources or N frequency domain resource sets corresponding to the N time units for frequency hopping, where the N time units are used to transmit or receive reference signals, the first frequency being the lowest frequency domain position of the frequency domain resources occupied by the first device for transmitting or receiving reference signals, the second frequency being the highest frequency domain position of the frequency domain resources occupied by the first device for transmitting or receiving reference signals, and N being an integer greater than 1. It will be understood that the N frequency domain resource sets may include multiple frequency domain resources, the number of which may be equal to the number of reference signals simultaneously transmitted or received by the first device in the same time unit. That is, the first device may determine the first frequency and / or the second frequency based on the frequency domain resources occupied by the first device for transmitting or receiving reference signals, and determine that the frequency hopping resources may correspond one-to-one to the N time units and the N frequency domain resources, i.e., one time unit may be used to transmit or receive one reference signal. Alternatively, the first device determines that the frequency hopping resources may correspond one-to-one to N time units and N frequency domain resource sets, so that one time unit may correspond to multiple different frequency domain resources, and thus the first device may simultaneously send or receive multiple different reference signals.

[0018] In another possible implementation, determining the correspondence between M frequency domain resources for frequency hopping and N time units based on the first frequency and / or the second frequency includes: determining, based on the first frequency and / or the second frequency, N frequency domain resources or N frequency domain resource sets corresponding to the N time units, the N time units being used to send or receive reference signals, the first frequency being lower than the lowest frequency of the N frequency domain resources, the second frequency being higher than the highest frequency of the N frequency domain resources, and N being an integer greater than 1. In other words, the first device may determine, based on the first frequency and / or the second frequency, N frequency domain resources within a frequency range corresponding to the first frequency and / or the second frequency, and determine the correspondence between the N time units and the N frequency domain resources or the N frequency domain resource sets.

[0019] In one possible implementation, the reference signal is used for positioning. For example, the reference signal may include one or more of the following: an uplink reference signal (UL-RS), a downlink reference signal (DL-RS), and a sidelink reference signal (SL-RS). The uplink reference signal may specifically include one or more of the following: a sounding reference signal (SRS) adopted by version 15 (reversion 15, R15) and earlier versions, a positioning sounding reference signal (pos-SRS) proposed by R16 specifically for positioning, or other uplink reference signals used for positioning in the future, without specific limitation. The downlink reference signal may specifically include a positioning reference signal (PRS) proposed by R16 specifically for positioning, or other downlink reference signals used for positioning in the future, without specific limitation. Sidelink reference signal: may refer to a reference signal transmitted between two terminal devices via a sidelink (SL), and the sidelink reference signal may include a sidelink positioning reference signal (SL-PRS).

[0020] In one possible implementation, the first frequency is the sum of a reference frequency and a first frequency domain offset value, wherein the reference frequency is one of the following: a starting frequency of the BWP, a maximum frequency of the BWP, a center frequency of the BWP, or a reference frequency corresponding to the BWP.

[0021] In another possible implementation, the second frequency is the sum of the reference frequency and the second frequency domain offset value, wherein the reference frequency is one of the following: the starting frequency of the BWP, the highest frequency of the BWP, the center frequency of the BWP, or the reference frequency corresponding to the BWP.

[0022] In another possible implementation, the first frequency is the sum of a reference frequency and a first frequency domain offset value, and the second frequency is the sum of a reference frequency and a second frequency domain offset value. The reference frequency corresponding to the first frequency and the reference frequency corresponding to the second frequency may be different or the same. It is understood that the BWP may be an initial BWP, an active BWP, or a BWP other than the active BWP among multiple BWPs configured by the network. Alternatively, the BWP may be a virtual BWP. The virtual BWP may have the same SCS as the active BWP, but with a larger bandwidth. The bandwidth (or frequency range) of the virtual BWP may not be the same as the active BWP configured by the network. The virtual BWP may have an extended virtual boundary for frequency hopping. For example, the available bandwidth of the virtual BWP may be greater than the bandwidth of the active BWP of the first device. In other words, if the first frequency and / or the second frequency are located at the starting frequency, highest frequency, or reference frequency of the virtual BWP, the M frequency domain resources may be located within the virtual BWP. In this way, REDCAP terminal devices can also use frequency domain resources aligned with the BWP of standard terminal devices. For example, for a network-configured BWP, the first frequency or the second frequency can be located on an inactive BWP outside of the active BWP. In this way, the BWPs between REDCAP terminal devices and ordinary terminal devices can better match resources (for example, align RBs). In other words, the first frequency and / or the second frequency can be determined by the relevant reference frequency of the BWP, and the M frequency domain resources determined by the first frequency and / or the second frequency can be flexibly designed. For example, the M frequency domain resources can be located within the active BWP or across different BWPs.

[0023] In one possible implementation, the first frequency domain offset value may be 0. That is, the first frequency may be the starting frequency of the BWP, or the first frequency may be the center frequency of the BWP, or the first frequency may be the reference frequency corresponding to the BWP. Of course, the first frequency domain offset value may be greater than 0, so that the first frequency may be greater than the starting frequency of the BWP. Alternatively, the first frequency domain offset value may be less than 0, so that the first frequency may be less than the starting frequency of the BWP. The first frequency domain offset value may be represented by the number of RBs, the number of REs, the number of subcarriers, or the bandwidth, etc.

[0024] In one possible implementation, the second frequency domain offset value may be 0. That is, the second frequency may be the highest frequency of the BWP, or the second frequency may be the center frequency of the BWP. Of course, the second frequency domain offset value may be greater than 0, meaning the second frequency may be greater than the highest frequency of the BWP; or the second frequency domain offset value may be less than 0, meaning the second frequency may be less than the highest frequency of the BWP. The second frequency domain offset value may be represented by the number of RBs, the number of REs, the number of subcarriers, or the bandwidth.

[0025] In one possible implementation, the frequency domain resource corresponding to the Kth time unit among the N time units is determined based on the first frequency, and the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position or the highest frequency domain resource among the M frequency domain resources. In other words, the frequency domain resource corresponding to the Kth time unit can be determined through the first frequency, that is, the frequency domain resource with the highest frequency domain position or the frequency domain resource with the lowest frequency domain position among the M frequency domain resources. In this way, the frequency hopping resource for sending or receiving the reference signal can be uniquely determined, thereby avoiding interference and helping to improve positioning accuracy.

[0026] In one possible implementation, the frequency domain resource corresponding to the Kth time unit is determined based on the first frequency, including: the frequency domain resource corresponding to the Kth time unit is determined based on the third frequency, and the frequency domain resource corresponding to the third frequency is the frequency domain resource with the highest frequency domain position among the M frequency domain resources. The third frequency is determined based on the total bandwidth occupied by the first frequency and the M frequency domain resources. The third frequency may refer to the highest frequency domain position relative to the first frequency. For example, the third frequency F c-h =F l +B,F l is the first frequency, B is the total bandwidth occupied by M frequency domain resources, that is, the combined bandwidth. For another example, the third frequency b i is the bandwidth of the frequency domain resource corresponding to the i-th time unit in n time units, n is the frequency hopping times or number, f i,i-1 It is used to represent the frequency domain offset between the i-th time unit and the i-1-th time unit in N time units, that is, the frequency domain offset between two adjacent time units in N time units. 1,0 =0, 1≤n≤N, where n is an integer. That is, when the third frequency is determined, the frequency domain position of the frequency domain resource as a whole increases or decreases in sequence with the time units, and the frequency domain resource corresponding to the Kth time unit can be determined based on the frequency domain resource corresponding to any one of the n time units within a frequency hopping pattern period (for example, one or more of the starting frequency domain position, the center frequency, or the highest frequency domain position).

[0027] In one possible implementation, the frequency domain resources corresponding to the K-th time unit are determined based on the third frequency, including: the K-th time unit is determined based on the third frequency, and the frequency domain resources corresponding to the t-th time unit in the N time units, 1≤t≤N. That is, the first device can determine the K value in the K-th time unit based on the order of any one of the N time units in the n time units and its corresponding frequency domain resources, that is, determine the order of the time unit corresponding to the frequency domain resource with the highest frequency domain position in the M frequency domain resources in the n time units, and / or the order of the time unit corresponding to the frequency domain resource with the lowest frequency domain position in the M frequency domain resources in the n time units, so that the frequency hopping resource information for sending or receiving the reference signal, such as frequency domain resource information and time domain resource information, can be uniquely determined.

[0028] In a possible implementation, the Kth time unit is determined based on the third frequency and the frequency domain resource corresponding to the tth time unit in the N time units, including: the Kth time unit is determined based on the frequency domain position relationship between the frequency domain resource corresponding to the tth time unit and the third frequency. The frequency domain position relationship is the first frequency domain position relationship or the second frequency domain position relationship. The first frequency domain position relationship is: the frequency domain starting position of the frequency domain resource corresponding to the tth time unit is the same as the frequency domain starting position of the frequency domain resource corresponding to the tth time unit. t The frequency domain position corresponding to the sum is greater than the third frequency, and the relationship between the second frequency domain position is: the frequency domain starting position of the frequency domain resource corresponding to the t-th time unit is equal to b t The frequency domain position corresponding to the sum is equal to the third frequency, or the frequency domain position is less than the third frequency, and the difference between the two is less than b t+1 Or b. b t is the bandwidth of the frequency domain resource corresponding to the t-th time unit, b t+1 is the bandwidth of the frequency domain resource corresponding to the t+1th time unit, and b is the bandwidth occupied by each frequency hop. It should be understood that the frequency domain starting position of the frequency domain resource corresponding to the tth time unit can be indicated by the network, or it can be determined based on other time units. That is to say, the first device can also determine the Kth time unit based on the frequency domain position relationship between the frequency domain resource corresponding to the tth time unit and the third frequency, and then different position relationships can correspond to different Kth time units, and their corresponding frequency domain resources, so as to improve resource utilization or resource scheduling flexibility. It can be understood that for the second frequency domain position relationship, the frequency domain resource with the highest frequency domain position among the M frequency domain resources has a highest frequency domain position less than or equal to the third frequency, that is, the first device is hopping to the vicinity of the third frequency, and the next hop starts from the lowest frequency (that is, the first frequency).

[0029] In a possible implementation, the first frequency domain position relationship may include: position relationship 1a or position relationship 1b. In position relationship 1a, the actual bandwidth of the frequency domain resource corresponding to the tth time unit is equal to that of the bth time unit. t In position relationship 1b, the actual bandwidth of the frequency domain resource corresponding to the tth time unit is less than b t , and the actual highest frequency domain position of the frequency domain resource corresponding to the t-th time unit can be equal to the third frequency. That is to say, for position relationship 1a, the frequency domain resource with the highest frequency domain position among the M frequency domain resources can have a highest frequency domain position greater than the third frequency, that is, the first device can continue to hop in the direction of the third frequency (that is, the direction of frequency increase) when it is near the highest frequency (that is, the third frequency), and then the frequency domain starting position of the frequency domain resource corresponding to the next hop (that is, the next time unit) can be greater than the first frequency. For position relationship 1b, the frequency domain resource with the highest frequency domain position among the M frequency domain resources has an actual highest frequency domain position equal to the third frequency, that is, the first device can continue to hop in the direction of the third frequency when it is near the highest frequency, but the actual hopping bandwidth is less than the configured bandwidth. The configured bandwidth can be, for example, the above b t Or the bandwidth b occupied by each frequency hop, and thus the frequency domain starting position of the frequency domain resource corresponding to the next hop can be equal to the first frequency.

[0030] In one possible implementation, the frequency domain resource corresponding to the Kth time unit among the N time units is determined based on the second frequency, and the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position or the frequency domain resource with the highest frequency among the M frequency domain resources. In other words, the frequency domain resource corresponding to the Kth time unit, i.e., the frequency domain resource with the highest frequency domain position or the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, can be determined using the first frequency. In this way, the frequency hopping resource for sending or receiving the reference signal can be uniquely determined, thereby avoiding interference.

[0031] In one possible implementation, the frequency domain resource corresponding to the Kth time unit is determined based on the second frequency, including: the frequency domain resource corresponding to the Kth time unit is determined based on the fourth frequency, and the frequency domain resource corresponding to the fourth frequency is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources. The fourth frequency is determined based on the total bandwidth occupied by the second frequency and the M frequency domain resources. The fourth frequency may refer to the lowest frequency domain position relative to the second frequency, for example, the fourth frequency F c-l =F h -B, F c-l is the fourth frequency, F h is the second frequency, B is the total bandwidth occupied by M frequency domain resources, that is, the combined bandwidth. For another example, the fourth frequency b iis the bandwidth of the frequency domain resource corresponding to the i-th time unit in n time units, n is the frequency hopping times or number, f i,i-1 It is used to represent the frequency domain offset between the i-th time unit and the i-1-th time unit in N time units, that is, the frequency domain offset between two adjacent time units in N time units. 1,0 =0, 1≤n≤N, where n is an integer. That is, when the fourth frequency is determined, the frequency domain position of the frequency domain resource as a whole increases or decreases in sequence with the time units, and then the frequency domain resource corresponding to the Kth time unit can be determined based on the frequency domain resource corresponding to any one of the n time units within a frequency hopping pattern period (for example, one or more of the starting frequency domain position, the center frequency, or the highest frequency domain position).

[0032] In one possible implementation, the frequency domain resource corresponding to the Kth time unit is determined based on the fourth frequency, including: the Kth time unit is determined based on the fourth frequency and the frequency domain resource corresponding to the tth time unit in the N time units, 1≤t≤N. It can be understood that the tth time unit can be any time unit in the N time units. In the case where N is greater than n and t is greater than n, the order of the nth time unit in which the tth time unit is located within a frequency hopping pattern period can be determined by dividing t modulo n (e.g., t mod n). In other words, the first device can determine the K value in the Kth time unit based on the order of any time unit in the N time units and its corresponding frequency domain resource, that is, determine the order of the time unit corresponding to the frequency domain resource with the highest frequency domain position in the M frequency domain resources in the n time units, and / or the order of the time unit corresponding to the frequency domain resource with the lowest frequency domain position in the M frequency domain resources in the n time units, so that the frequency hopping resource information for sending or receiving the reference signal can be uniquely determined.

[0033] In one possible implementation, the Kth time unit is determined based on the fourth frequency and the frequency domain resource corresponding to the tth time unit in the N time units, including: the Kth time unit is determined based on the frequency domain position relationship between the frequency domain resource corresponding to the tth time unit and the second frequency. The frequency domain position relationship is the fifth frequency domain position relationship or the sixth frequency domain position relationship. The fifth frequency domain position relationship is: the frequency domain starting position of the frequency domain resource corresponding to the tth time unit is the same as b t The frequency domain position corresponding to the sum is equal to the second frequency, or the frequency domain position is less than the second frequency, and the difference between the two is less than b t+1 Or b. The sixth frequency domain position relationship is: the frequency domain starting position of the frequency domain resource corresponding to the tth time unit is the same as b t The frequency domain position corresponding to the sum is greater than the second frequency.t is the bandwidth of the frequency domain resource corresponding to the t-th time unit, b tt1 is the bandwidth of the frequency domain resource corresponding to the t+1th time unit, and b is the bandwidth occupied by each frequency hopping. It can be understood that if the bandwidth occupied by each frequency hopping is the same, b t It can be equal to b. That is, the first device can also determine the Kth time unit based on the frequency domain position relationship between the frequency domain resource corresponding to the tth time unit and the second frequency, and then different position relationships can correspond to different Kth time units and their corresponding frequency domain resources, so as to improve resource utilization or resource scheduling flexibility. It should be understood that for the sixth frequency domain position relationship, the actual bandwidth of the frequency domain resource corresponding to the tth time unit is less than b t , that is, the frequency domain resource corresponding to the tth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, that is, the frequency domain starting position of the frequency domain resource corresponding to the t+1th time unit can be less than the fourth frequency.

[0034] In a possible implementation, the fifth frequency domain position relationship may include: position relationship 5a or position relationship 5b. In position relationship 5a, the frequency domain resource corresponding to the t-th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain end position of the frequency domain resource (i.e., the highest frequency domain position) is less than or equal to the second frequency, and the frequency domain resource corresponding to the t+1-th time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, and its frequency domain starting position is determined based on the frequency domain starting position of the frequency domain resource corresponding to the t-th time unit and the combined bandwidth B. In this way, the frequency domain end position of the frequency domain resource corresponding to the t+1-th time unit may be less than the fourth frequency. In position relationship 5b, the difference from position relationship 5a is that the frequency domain resource corresponding to the t-th time unit may not be the frequency domain resource with the highest frequency domain position among the M frequency domain resources. In this way, the frequency domain end position of the frequency domain resource corresponding to the t+1-th time unit may be equal to the fourth frequency. That is, for position relationship 5a, the frequency domain end position (i.e., the highest frequency domain position) of the frequency domain resource with the highest frequency domain position among the M frequency domain resources can be less than the second frequency. That is, when the first device hops to a frequency near the lowest frequency (i.e., the second frequency), the frequency domain start position of the next hop is less than the fourth frequency. For position relationship 5b, when the first device hops to a frequency near the second frequency, the next hop starts at the fourth frequency.

[0035] In one possible implementation, the method provided in the first aspect further includes: receiving frequency hopping configuration information, where the frequency hopping configuration information is used to indicate at least one of the following: a first frequency, a second frequency, or a combined bandwidth. The combined bandwidth can be used to determine the number of frequency hops within a reference signal frequency hopping pattern period. That is, the network indicates the first frequency and / or the second frequency so that the first device and the receiving end can align the correspondence between M frequency domain resources and N time units to avoid sending or receiving reference signals on incorrect frequency hopping resources.

[0036] In one possible implementation, the frequency hopping configuration information is further used to indicate at least one of the following: location information of the frequency domain resource corresponding to the first time unit in N time units, time domain location information corresponding to the first time unit in N time units, bandwidth of the frequency domain resource corresponding to the i-th time unit, overlap between the frequency domain resource corresponding to the i-th time unit and the frequency domain resource corresponding to the j-th time unit, number of frequency hops, frequency domain offset corresponding to two adjacent time units in N time units, or time interval between the i-th time unit and the j-th time unit; where the i-th time unit and the j-th time unit are time units in N time units, and 1≤i≠j≤N. It should be understood that the time domain location information may refer to at least one of the following: time domain starting position, time domain ending position, or the x-th sub-time unit in a time unit. Among them, the sub-time unit may refer to a time domain resource or time unit with a granularity smaller than the time unit. For example, the time unit is a radio frame, and the sub-time unit may be the x-th subframe in the radio frame, 1≤x≤y, y may be equal to 1, 2, 4, 8, or 16, etc., y indicates that the time unit includes y sub-time units, and of course x may also be an intermediate value of y, or a value near the intermediate value. The sub-time unit may also be a time unit with a smaller granularity, such as a time slot, an OFDM symbol, or a time unit of other granularity. The i-th time unit may be adjacent to the j-th time unit, such as j=i+1, or j=i-1 (i is greater than 1). Of course, the i-th time unit may also be non-adjacent to the j-th time unit, such as i=1, j is equal to 2, or 3, or 4, or 5, etc., and the embodiments of the present application do not specifically limit this. It can be understood that the time interval between the i-th time unit and the j-th time unit may refer to: the time interval between the time domain starting position of the i-th time unit and the time domain starting position of the j-th time unit; or, the time interval between the time domain ending position of the i-th time unit and the time domain starting position of the j-th time unit; or, the time interval between the time domain starting position of the i-th time unit and the time domain ending position of the j-th time unit.

[0037] In one possible implementation, there are multiple time intervals between the i-th time unit and the j-th time unit. Any two of the multiple time intervals may be equal or unequal. For example, for a time division duplex (TDD) system, due to limited uplink time domain resources (e.g., time slots), the time interval may be greater than or equal to one TDD cycle, which may be, for example, 5 time slots, 10 time slots, or more time slots, thereby reducing the impact on communication performance.

[0038] In a possible implementation, the method provided in the first aspect further includes: sending desired configuration information, where the desired configuration information is used to indicate at least one of the following: the lowest frequency domain position of the frequency domain resources occupied by sending or receiving reference signals, the highest frequency domain position of the frequency domain resources occupied by sending or receiving reference signals, the combined bandwidth, or the frequency domain position relationship between the reference frequency domain position and the frequency domain resource with the lowest frequency domain position or the frequency domain resource with the highest frequency domain position among the M frequency domain resources. The reference frequency domain position includes at least one of the following: the first frequency, the third frequency, the second frequency, or the fourth frequency, the frequency domain resource corresponding to the third frequency is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the fourth frequency is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources. It can be understood that the frequency domain resource with the lowest frequency domain position or the frequency domain resource with the highest frequency domain position among the above-mentioned M frequency domain resources can refer to the frequency domain position of the frequency domain resource, such as the frequency domain starting position, the center frequency point, or the highest frequency domain position. Among them, the relationship between the reference frequency domain position and the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, or the frequency domain resource with the highest frequency domain position, can be used to indicate the frequency hopping pattern expected by the first device and corresponding to the above-mentioned frequency domain position relationship. For example, if the reference position is three frequencies, the frequency domain position relationship between the third frequency and the frequency domain resource with the highest frequency domain position among the M frequency domain resources can be: position relationship 1a in the first frequency domain position relationship, that is, the frequency domain resource with the highest frequency domain position among the M frequency domain resources, whose highest frequency domain position is greater than the third frequency. In other words, the frequency domain position relationship can indicate that after hopping to the highest frequency (that is, the third frequency), frequency hopping can continue in the direction of the third frequency (that is, the direction of increasing frequency), and then the frequency domain starting position of the frequency domain resource corresponding to the next hop (that is, the next time unit) can be greater than the first frequency. In other words, the first device can send the desired configuration information to the second device, so that the second device can determine, based on the desired configuration information, the frequency hopping pattern of the reference signal sent or received by the first device.

[0039] In a possible implementation, the method provided in the first aspect further includes: receiving a first request message, the first request message is used to request the desired configuration information, and the desired configuration information is used to indicate at least one of the following: the lowest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, the highest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, the combined bandwidth, or the frequency domain position relationship between the reference frequency domain position and the frequency domain resource with the lowest frequency domain position or the frequency domain resource with the highest frequency domain position among the M frequency domain resources. The reference frequency domain position includes at least one of the following: the first frequency, the third frequency, the second frequency, or the fourth frequency. That is, the second device can send the first request message to the first device to request the configuration information desired by the first device, so that the second device can determine, based on the desired configuration information, the frequency hopping pattern of the reference signal sent or received by the first device.

[0040] In one possible implementation, the method provided in the first aspect further includes: sending a second request message, the second request message is used to request configuration information, the configuration information is used to indicate at least one of the following: the lowest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, the highest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, the combined bandwidth, or the frequency domain position relationship between the reference frequency domain position and the frequency domain resource with the lowest frequency domain position or the frequency domain resource with the highest frequency domain position among the M frequency domain resources. The reference frequency domain position includes at least one of the following: the first frequency, the third frequency, the second frequency, or the fourth frequency, the frequency domain resource corresponding to the third frequency is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the fourth frequency is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources. That is, the first device can send a second request message to the second device to request configuration information for uniquely determining the frequency hopping pattern, thereby avoiding interference.

[0041] In one possible implementation, the second request information includes desired configuration information. That is, the first device may indicate the desired configuration information to the second device through the second request information, so that the second device may determine, based on the desired configuration information, the frequency hopping pattern for transmitting or receiving a reference signal by the first device.

[0042] On the second aspect, a resource determination method is provided, which can be executed by a second device, or by a component of the second device, such as a processor, chip, or chip system of the second device, or by a logic module or software that can realize all or part of the functions of the second device. The following is an illustration of the method being executed by the second device. The method includes: generating frequency hopping configuration information, and sending the frequency hopping configuration information. The frequency hopping configuration information is used to determine the association relationship between multiple frequency domain resources and multiple time domain resources, multiple frequency domain resources are used for frequency hopping, and multiple time domain resources are used to send or receive reference signals. The frequency hopping configuration information includes information for indicating at least one of the following: a first frequency, a second frequency, or a combined bandwidth, the first frequency being the lowest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, the second frequency being the highest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, and the combined bandwidth being the total bandwidth occupied by multiple frequency domain resources;

[0043] Since, in an embodiment of the present application, the second device can send frequency hopping configuration information to the first device, so that the first device can determine the first frequency and / or the second frequency, the first device can determine the correspondence between multiple frequency domain resources used for frequency hopping and multiple time units, so as to avoid sending or receiving reference signals on the same frequency hopping resources with other devices, thereby avoiding interference, which helps to improve positioning accuracy.

[0044] In one possible implementation, the second device may be a network device, or a module or unit of the network device, such as a chip, a chip system, a chip circuit, or a circuit; the first device may be a terminal device, or a module or unit of the terminal device, such as a chip, a chip system, a chip circuit, or a circuit. For example, the second device may be an access network device or a chip of the access network device, and the first device may be a terminal device or a chip of the terminal device. For another example, the second device may be a location management function (such as an LMF), and the first device may be a terminal device or a chip of the terminal device. That is, the second device may send the above-mentioned frequency hopping configuration information to the first device via the access network device.

[0045] In a possible implementation, the second device may be a positioning management function, and the first device may be an access network device or a chip of the access network device. The first device may send or receive a reference signal according to the frequency hopping configuration information.

[0046] In a possible implementation, the first frequency is the sum of a reference frequency and a first frequency domain offset value, wherein the reference frequency is at least one of the following: a starting frequency of the BWP, a maximum frequency of the BWP, or a reference frequency corresponding to the BWP.

[0047] In one possible implementation, the second frequency is the sum of the reference frequency and the second frequency domain offset value; wherein the reference frequency is at least one of the following: the starting frequency of the BWP, the highest frequency of the BWP, or the reference frequency corresponding to the BWP.

[0048] In a possible implementation, a reference signal is used for positioning. For example, the reference signal may include one or more of the following: an uplink reference signal, a downlink reference signal, and a sidelink reference signal.

[0049] In one possible implementation, multiple time domain resources include N time units, and the frequency hopping configuration information is also used to indicate at least one of the following: location information of the frequency domain resource corresponding to the first time unit in the N time units, time domain location information corresponding to the first time unit in the N time units, bandwidth of the frequency domain resource corresponding to the i-th time unit, overlap size between the frequency domain resource corresponding to the i-th time unit and the frequency domain resource corresponding to the j-th time unit, number of frequency hopping, frequency domain offset corresponding to two adjacent time units in the N time units, or time interval between the i-th time unit and the j-th time unit; wherein, the i-th time unit and the j-th time unit are time units in the N time units, 1≤i≠j≤N.

[0050] In one possible implementation, the method provided in the second aspect further includes: receiving desired configuration information, where the desired configuration information is used to indicate at least one of the following: the lowest frequency domain position of the frequency domain resources occupied by sending or receiving reference signals, the highest frequency domain position of the frequency domain resources occupied by sending or receiving reference signals, a combined bandwidth, or a frequency domain position relationship between a reference frequency domain position and a frequency domain resource with the lowest frequency domain position or a frequency domain resource with the highest frequency domain position among multiple frequency domain resources. The reference frequency domain position includes at least one of the following: a first frequency, a third frequency, a second frequency, or a fourth frequency.

[0051] In one possible implementation, the method provided in the second aspect further includes: sending first request information, where the first request information is used to request desired configuration information, where the desired configuration information is used to indicate at least one of the following: the lowest frequency domain position of the frequency domain resources occupied by sending or receiving reference signals, the highest frequency domain position of the frequency domain resources occupied by sending or receiving reference signals, a combined bandwidth, or a frequency domain position relationship between a reference frequency domain position and a frequency domain resource with the lowest frequency domain position or a frequency domain resource with the highest frequency domain position among multiple frequency domain resources. The reference frequency domain position includes at least one of the following: a first frequency, a third frequency, a second frequency, or a fourth frequency.

[0052] In a possible implementation, the method provided in the second aspect further includes: receiving second request information, the second request information is used to request configuration information, the configuration information is used to indicate at least one of the following: the lowest frequency domain position of the frequency domain resources occupied by sending or receiving reference signals, the highest frequency domain position of the frequency domain resources occupied by sending or receiving reference signals, the combined bandwidth, or the frequency domain position relationship between the reference frequency domain position and the frequency domain resource with the lowest frequency domain position or the frequency domain resource with the highest frequency domain position among multiple frequency domain resources. The reference frequency domain position includes at least one of the following: the first frequency, the third frequency, the second frequency, or the fourth frequency, the frequency domain resource corresponding to the third frequency is the frequency domain resource with the highest frequency domain position among multiple frequency domain resources, and the frequency domain resource corresponding to the fourth frequency is the frequency domain resource with the lowest frequency domain position among multiple frequency domain resources.

[0053] In a possible implementation, the second request information includes desired configuration information.

[0054] Among them, the technical effects of any implementation method of the second aspect can refer to the above-mentioned first aspect and will not be repeated here.

[0055] On the third aspect, a resource determination method is provided, which can be executed by a first device, or by a component of the first device, such as a processor, chip, or chip system of the first device, or by a logic module or software that can realize all or part of the functions of the first device. The following is an illustration of the method being executed by the first device. The method includes: receiving frequency hopping configuration information, and determining the correspondence between N time units and M frequency domain resources based on the frequency hopping configuration information. The frequency hopping configuration information is used to indicate that the i-th time unit in the N time units is associated with the j-th frequency domain resource in the M frequency domain resources, the M frequency domain resources are used for frequency hopping, and the N time units are used to send or receive reference signals, M is an integer greater than 1, N is an integer greater than 1, 1≤i≤N, 1≤j≤M;

[0056] Because in an embodiment of the present application, the first device can determine the correspondence between each time unit in N time units and each frequency domain resource in M ​​frequency domain resources based on the frequency hopping configuration information, and thus can uniquely determine the frequency hopping resource for sending or receiving the reference signal, so as to avoid sending or receiving the reference signal on the same frequency hopping resource with other devices, thereby avoiding interference and helping to improve positioning accuracy.

[0057] In a fourth aspect, a resource determination method is provided, which can be executed by a second device, or by a part of the second device, such as a processor, chip, or chip system of the second device, or can be implemented by a logic module or software that can perform all or part of the functions of the second device. The following is an illustration of the method being executed by the first device. The method includes: generating frequency hopping configuration information and sending the frequency hopping configuration information. The frequency hopping configuration information is used to indicate that the i-th time unit in N time units is associated with the j-th frequency domain resource in M ​​frequency domain resources; wherein the M frequency domain resources are used for frequency hopping, and the N time units are used to send or receive reference signals, M is an integer greater than 1, N is an integer greater than 1, 1≤i≤N, 1≤j≤M.

[0058] Among them, the technical effects of the fourth aspect can refer to the above-mentioned third aspect and will not be repeated here.

[0059] In conjunction with the third or fourth aspect, in one possible implementation, the frequency hopping configuration information includes time domain sequence information, where the time domain sequence information is used to indicate that the i-th time unit is associated with the j-th frequency domain resource. That is, the time sequence information in the frequency hopping configuration information enables the first device to determine a frequency hopping sequence for the reference signal, i.e., which frequency domain resource among the M frequency domain resources to first transmit or receive the reference signal on. This allows the first device to uniquely determine the frequency hopping resource for transmitting or receiving the reference signal, thereby avoiding transmitting or receiving the reference signal on the same frequency hopping resource with other devices, thereby avoiding interference.

[0060] In conjunction with the third aspect or the fourth aspect, in one possible implementation, the frequency hopping configuration information further includes frequency domain index information, where the frequency domain index information includes index information of the jth frequency domain resource. The frequency domain index information may include index information of some of the M frequency domain resources, or the frequency domain index information may include index information of all of the M frequency domain resources. In other words, the frequency domain index information in the frequency hopping configuration information can assist the first apparatus in determining the frequency domain positional relationship between the M frequency domain resources, and then, in combination with the time domain sequence information, uniquely determine the frequency hopping pattern.

[0061] In combination with the third aspect or the fourth aspect, in a possible implementation, the M frequency domain resources are determined based on a first frequency hopping parameter set. The first frequency hopping parameter set includes at least one of the following: position information of the frequency domain resource corresponding to the first time unit in N time units, time domain position information corresponding to the first time unit in N time units, bandwidth of the frequency domain resource corresponding to the i-th time unit, overlap size between the frequency domain resource corresponding to the i-th time unit and the frequency domain resource corresponding to the L-th time unit in N time units, number of frequency hopping, frequency domain offset corresponding to two adjacent time units in N time units, or time interval between the i-th time unit and the L-th time unit, 1≤i≠L≤N.

[0062] In conjunction with the third or fourth aspect, in one possible implementation, the frequency hopping configuration information may be included in a system message. For example, the frequency hopping configuration information may be included in a posSIB. In other words, broadcasting the frequency hopping configuration information via a system message can reduce signaling overhead. It will be appreciated that the second device may also send the frequency hopping configuration information via a unicast message. For example, the frequency hopping configuration information may be included in an RRC message, an LPP message, or an NRPPA message.

[0063] In conjunction with the third or fourth aspect, in one possible implementation, the frequency hopping configuration information is further used to indicate a first frequency hopping parameter set. That is, the first device can determine the frequency domain position sequence relationship between the M frequency domain resources based on the frequency hopping configuration information, and further, can uniquely determine the frequency hopping pattern based on the time domain sequence information.

[0064] In a fifth aspect, a communication device is provided for implementing the various methods described above. The communication device may be the first device in the first aspect or any of its implementations, or a device including the first device, or a device included in the first device, such as a chip; or the communication device may be the first device in the third aspect or any of its implementations, or a device including the first device, or a device included in the first device, such as a chip; or the communication device may be the second device in the second aspect or any of its implementations, or a device including the second device, or a device included in the second device, such as a chip; or the communication device may be the second device in the fourth aspect or any of its implementations, or a device including the second device, or a device included in the second device, such as a chip. The communication device includes modules, units, or means corresponding to the implementation of the above methods, which may be implemented by hardware, software, or by hardware executing the corresponding software implementation. The hardware or software includes one or more modules or units corresponding to the above functions.

[0065] In some possible designs, the communication device may include a processing module and a transceiver module. The transceiver module, also referred to as a transceiver unit, is configured to implement the transmitting and / or receiving functions described in any of the above aspects and any possible implementations thereof. The transceiver module may be comprised of a transceiver circuit, a transceiver, a transceiver, or a communication interface. The processing module may be configured to implement the processing functions described in any of the above aspects and any possible implementations thereof.

[0066] In some possible designs, the transceiver module includes a sending module and a receiving module, which are respectively used to implement the sending and receiving functions in any of the above aspects and any possible implementation methods.

[0067] In a sixth aspect, a communication device is provided, comprising: at least one processor; the processor is configured to execute a computer program or instruction so that the communication device executes the method described in any one of the above aspects.

[0068] In one possible implementation, the communication device further includes the memory. Optionally, the memory is coupled to the processor, the memory may be integrated with the processor, or the memory may be independent of the processor. Optionally, the processor is configured to execute computer programs or instructions stored in the memory.

[0069] In a possible implementation, the memory is independent of the communication device.

[0070] In a possible implementation, the communication device further includes a communication interface, which is used to communicate with a module outside the communication device.

[0071] The communication device may be the first device in any of the above aspects or any of its implementations, or a device including the first device, or a device included in the first device, such as a chip; or, the communication device may be the second device in any of the above aspects or any of its implementations, or a device including the second device, or a device included in the second device, such as a chip.

[0072] In the seventh aspect, a computer-readable storage medium is provided, which stores a computer program or instruction. When the computer-readable storage medium is run on a communication device, the communication device can execute the method described in any of the above aspects or any of its implementation methods.

[0073] In an eighth aspect, a computer program product comprising instructions is provided, which, when executed on a communication device, enables the communication device to execute the method described in any one of the above aspects or any one of its implementations.

[0074] In a ninth aspect, a communication device is provided (for example, the communication device may be a chip or a chip system), which includes a processor for implementing the functions involved in any of the above aspects or any of its implementation methods.

[0075] In some possible designs, the communication device includes a memory for storing necessary program instructions and data.

[0076] In some possible designs, when the device is a chip system, it can be composed of a chip or include a chip and other discrete devices.

[0077] It can be understood that when the communication device provided in any one of the fifth to ninth aspects is a chip, the above-mentioned sending action / function can be understood as output, and the above-mentioned receiving action / function can be understood as input.

[0078] Among them, the technical effects brought about by any design method in the fifth to ninth aspects can refer to the technical effects brought about by the different design methods in the above-mentioned first to fourth aspects, and will not be repeated here.

[0079] In a tenth aspect, a communication system is provided, comprising: a first device according to any one of the above aspects or any one of its implementations, and a second device according to any one of the above aspects or any one of its implementations. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] FIG1 is a schematic diagram of overlapping frequency hopping resources provided by an embodiment of the present application;

[0081] FIG2 is a schematic diagram of non-overlapping frequency hopping resources provided by an embodiment of the present application;

[0082] FIG3 is a schematic diagram of a downlink frequency hopping transmission provided in an embodiment of the present application;

[0083] FIG4 is a schematic diagram of a frequency hopping pattern 1 provided in an embodiment of the present application;

[0084] FIG5 is a schematic diagram of a frequency hopping pattern 2 provided in an embodiment of the present application;

[0085] FIG6 is a schematic diagram of another frequency hopping pattern 2 provided in an embodiment of the present application;

[0086] FIG7 is a schematic diagram of another frequency hopping pattern 2 provided in an embodiment of the present application;

[0087] FIG8 is a schematic diagram of a frequency hopping pattern 3 provided in an embodiment of the present application;

[0088] FIG9 is a schematic diagram of determining frequency hopping resources of a frequency hopping pattern 2 provided in an embodiment of the present application;

[0089] FIG10 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0090] FIG11 is a schematic diagram of an application scenario provided by an embodiment of the present application;

[0091] FIG12 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0092] FIG13 is a schematic diagram of a flow chart of a resource determination method according to an embodiment of the present application;

[0093] FIG14 is a schematic diagram of a first frequency domain position relationship and a second frequency domain position relationship provided in an embodiment of the present application;

[0094] FIG15 is a schematic diagram of a third frequency domain position relationship and a fourth frequency domain position relationship provided in an embodiment of the present application;

[0095] FIG16 is a schematic diagram of a fifth frequency domain position relationship and a sixth frequency domain position relationship provided in an embodiment of the present application;

[0096] FIG17 is a schematic diagram of a seventh frequency domain position relationship and an eighth frequency domain position relationship provided in an embodiment of the present application;

[0097] FIG18 is a second flow chart of a resource determination method provided in an embodiment of the present application;

[0098] FIG19 is a third flow chart of a resource determination method provided in an embodiment of the present application;

[0099] FIG20 is a schematic diagram of determining a frequency hopping pattern based on time domain sequence information according to an embodiment of the present application;

[0100] FIG21 is a schematic structural diagram of a first device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0101] In order to facilitate understanding of the embodiments of the present application, the following explanations are made before introducing the embodiments of the present application.

[0102] 1. In the embodiments of the present application, for ease of description, when numbering or indexing is involved, the numbering can be started from 1 or from 0, or from any parameter.

[0103] 2. "Predefined," "predefined," "preconfigured (or pre-configured)," and "protocol agreement" may be used interchangeably, and pre-definition may be achieved by pre-saving corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device or a network device). The embodiments of this application do not limit the specific implementation methods. "Saved" may mean stored in one or more memories.

[0104] 3. The “protocol” involved in the embodiments of the present application may refer to a standard protocol in the field of communications, for example, it may include the long term evolution (LTE) protocol, the new radio (NR) protocol, and related protocols used in future communication systems. The embodiments of the present application are not limited to this.

[0105] 4. In the embodiments of the present application, descriptions such as "when...", "in the case of...", "if" and "if" all mean that the device (such as a terminal device or a network device) will perform corresponding processing under certain objective circumstances. It does not limit the time, nor does it require the device to perform a judgment action when implementing it, nor does it mean that there are other limitations.

[0106] 5. In the embodiments of the present application, “sending information to…(first device)” can be understood as the destination of the information being the first device, and can include directly or indirectly sending information to the first device. “Receiving information from…(second device)” or “receiving information from…(second device)” can be understood as the source of the information being the second device, and can include directly or indirectly receiving information from the second device. The information may be processed as necessary between the source and destination of the information, such as format changes, but the destination can understand the valid information from the source. Similar expressions in this application can be understood similarly and will not be repeated here.

[0107] 6. In the description of the embodiments of the present application, unless otherwise specified, the "and / or" in the embodiments of the present application indicates that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, wherein A and B can be singular or plural. Moreover, "at least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit them to be different. At the same time, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions.

[0108] The following is a brief introduction to the communication systems and related technologies to which this application is applicable.

[0109] First, the communication system:

[0110] The embodiments of the present application can be applicable to LTE systems or NR systems (also referred to as fifth generation (5G) systems), vehicle to everything (V2X) systems, device-to-device (D2D) systems, machine to machine (M2M) communication systems, Internet of Things (IoT) systems (such as narrowband Internet of Things (NB-IoT) systems), 6G communication systems, and other next-generation communication systems. Alternatively, the communication system can also be an open radio access network (O-RAN or ORAN) or a cloud radio access network (cloud RAN, CRAN), without limitation.

[0111] Second, the time and frequency resources of the NR system:

[0112] Time-frequency resources may include time domain resources and frequency domain resources. Among them, in order to meet the demand for communication traffic, in the frequency domain, the NR system can support a larger frequency range (FR) and system bandwidth. For example, for low frequency bands below 6 GHz, such as FR1 (410 MHz to 7125 MHz), the maximum system bandwidth supported by the NR system is 100 MHz. For another example, for high frequency bands above 6 GHz up to the millimeter wave band, such as FR2 (24250 MHz to 52600 MHz) and FR2-2 (52600 MHz to 71000 MHz), the maximum system bandwidth supported by the NR system is 400 MHz. It can be understood that in addition to the above-mentioned FR1, FR2, and FR2-2, FR can also be other frequency ranges supported in future next-generation communication systems (such as the sixth generation (6G) communication system), and the embodiments of the present application do not specifically limit this.

[0113] It should be understood that time domain resources and frequency domain resources are related to the transmission scheme of the NR system. Among them, the uplink (UL) transmission scheme and downlink (DL) transmission scheme of the NR system can use orthogonal frequency division multiplexing (OFDM) technology. The principle of OFDM is: divide multiple subchannels in the frequency domain, convert the data to be transmitted into serial and parallel, and obtain multiple groups of data for parallel transmission, and then modulate each group of data to the subcarrier corresponding to each subchannel for transmission, that is, the data to be transmitted can be transmitted through an OFDM waveform formed by multiple subcarriers superimposed in space. In other words, the minimum frequency domain resource in the NR system can be 1 subcarrier, and the minimum time domain resource can be 1 OFDM symbol.

[0114] It can be understood that any two subcarriers within an OFDM symbol are orthogonal, and thus the duration of the OFDM symbol (i.e., the duration of the OFDM symbol) is inversely proportional to the subcarrier space (SCS). The subcarriers are located within the carrier in which the NR system operates, and the number of subcarriers is determined by the subcarrier space (SCS) and the system bandwidth corresponding to the carrier.

[0115] It should be understood that the NR system can be configured with different SCSs to accommodate the different FRs described above. For example, for the low-frequency band FR1, a smaller SCS is used to avoid excessive CP time domain overhead. For another example, for the high-frequency bands FR2 and FR2-2, a larger SCS is used to avoid significant inter-subcarrier interference caused by Doppler frequency shift in the high frequency band.

[0116] For example, the transmission parameter set supported by the NR system is shown in Table 1. In Table 1, the first column is the specific value of the SCS configuration μ, and the second column is the specific value of the SCS.

[0117] Table 1

[0118] Among them, for SCS of 15kHz, the OFDM symbol time length can be approximately 66.67μs; for SCS of 30kHz, the OFDM symbol time length can be approximately 33.33μs; for SCS of 60kHz, the OFDM symbol time length can be approximately 16.67μs; for SCS of 120kHz, the OFDM symbol time length can be approximately 8.88μs; for SCS of 240kHz, the OFDM symbol time length can be approximately 4.17μs.

[0119] 2.1 Time Domain Resources

[0120] It should be understood that in the time domain, the NR system can be transmitted in units of radio frames. Among them, a radio frame can include multiple subframes, and each subframe can include multiple time slots. That is, the NR system can include time domain resources of different granularities such as radio frames, subframes, time slots, and OFDM symbols.

[0121] Each radio frame lasts 10 ms. Each radio frame can consist of 10 subframes, each lasting 1 ms. The 10 subframes within a radio frame can be arranged sequentially. For example, the 10 subframes within a radio frame can be arranged in ascending chronological order as: subframe #0 to subframe #9. For another example, the 10 subframes can be arranged in descending chronological order as: subframe #9 to subframe #0. The embodiments of this application do not specifically limit the subframe ordering method.

[0122] It should be understood that the above subframe numbering is only exemplary. For example, the starting numbering may also be #1. For example, the 10 subframes in a radio frame may be represented as: subframe #1 to subframe #10.

[0123] For SCS configuration μ, time slots can be numbered in ascending order within a subframe. Arranged, and can be numbered in ascending order within a radio frame In a time slot there are consecutive OFDM symbols, It is related to the CP type used by OFDM symbols. As can be seen from Table 2, no matter what the SCS is, a time slot includes 14 OFDM symbols.

[0124] It should be understood that the time slots in a subframe The time domain starting position of the OFDM symbol in the same subframe The time domain starting positions of OFDM symbols are aligned. For example, when a time slot includes 14 OFDM symbols, the OFDM symbols can be sorted in ascending time order as: OFDM symbol #0 to OFDM symbol #13, where the time domain starting position of OFDM symbol #0 is the same as the time domain starting position of the time slot.

[0125] Table 2

[0126] 2.2 Frequency Domain Resources

[0127] According to the aforementioned explanation of OFDM, the minimum granularity of frequency domain resources is one subcarrier, and the number of subcarriers can measure the size of frequency domain resources. In the NR system, frequency domain resources can be divided into resource elements (RE), resource blocks (RB), and bandwidth parts (BWP).

[0128] For RE: a subcarrier in the frequency domain and an OFDM symbol in the time domain can be defined as RE. RE is the smallest granularity resource in the physical layer.

[0129] Regarding resource allocation (RB): In the frequency domain, regardless of the subcarrier spacing, 12 consecutive subcarriers can be defined as one RB. The larger the SCS, the greater the actual bandwidth corresponding to one RB. It should be understood that in the physical layer, an RB can be called a physical resource block (PRB).

[0130] For BWP: Taking into account the limitations of terminal device capabilities and energy-saving requirements, the NR system allows terminal devices to operate in a part of the system bandwidth, namely BWP. Alternatively, BWP can be part of the bandwidth corresponding to a carrier supported by a cell. For example, a cell covered by a network device (such as a next-generation radio access network (NG-RAN) device in the NR system) supports two carriers (carrier #1 and carrier #2). The cell allocates 40MHz of bandwidth to carrier #1 and 60MHz of bandwidth to carrier #2 respectively. BWP can be 20MHz of bandwidth in the 40MHz bandwidth corresponding to carrier #1, and the terminal device can work only on BWP. It can be understood that a BWP can include multiple RBs, that is, the size of BWP can be measured by the number of RBs. It can also be understood that the size of frequency domain resources can also be expressed by bandwidth. For example, for an SCS of 15kHz, the bandwidth of the RB is 12×15kHz=180kHz.

[0131] It should be understood that in the NR system, after the terminal device accesses the network through the initial access process, the network can configure a working BWP for the terminal device through high-layer signaling. Each terminal device can be configured with 1 to 4 BWPs, but only one BWP is active at any time. Except for radio resource management (RRM) measurements, the terminal device only sends and receives data on the active BWP. The configuration of the BWP may include: the frequency domain position of the BWP, bandwidth, and SCS, etc.

[0132] It should also be understood that before the terminal device establishes a radio resource control (RRC) connection, that is, during the initial search and initial access process, the network can configure the initial BWP through system information (SI), such as the remaining minimum system information (RMSI). If there is no configuration information for the initial BWP in the RMSI, the protocol stipulates that the control resource set (CORESET) 0 can be used as the initial BWP.

[0133] It is understood that in the embodiments of the present application, "carrier," "carrier frequency," and "frequency point" can be used interchangeably, and are hereby described uniformly and not further elaborated upon. Furthermore, in the embodiments of the present application, "number" and "index" have the same meaning. In other words, "number" and "index" can be used interchangeably, and are hereby described uniformly and not further elaborated upon.

[0134] It is also understood that in the embodiments of the present application, an index may correspond to an identity (ID). For example, the index of a timeslot may correspond to the identity of a time domain resource; the index of an RB may correspond to the identity of a frequency domain resource; the index of a cell may correspond to the identity of a cell; the index of a carrier may correspond to the identity of a carrier; the index of an activated BWP may correspond to the identity of an activated BWP, etc., which are all described here and will not be repeated below.

[0135] Third, reference signal:

[0136] In the embodiment of the present application, the reference signal may include one or more of the following: an uplink reference signal (UL-RS), a downlink reference signal (DL-RS), and a sidelink reference signal (SL-RS).

[0137] Uplink Reference Signal: This may refer to a reference signal sent by a terminal device to a network device. The uplink reference signal may include one or more of the following: the sounding reference signal (SRS) used in Release 15 (R15) and earlier versions, the positioning sounding reference signal (pos-SRS) proposed in R16 for positioning, or other future uplink reference signals used for positioning (e.g., in sixth-generation (6G) communication systems), without specific limitation.

[0138] Downlink reference signal: This may refer to a reference signal sent by a network device to a terminal device. The downlink reference signal may include a positioning reference signal (PRS) specifically used for positioning as proposed in R16, or other future downlink reference signals used for positioning, which are not specifically limited in this embodiment of the present application.

[0139] It should be understood that in the NR system, since the terminal device is connected to the network device through the Uu interface, the uplink reference signal and the downlink reference signal are transmitted through the Uu interface.

[0140] Sidelink reference signal: This refers to a reference signal transmitted between two terminal devices via a sidelink (SL). SL can also be referred to as a direct link, secondary link, or side link. SL is a link introduced to support direct communication between devices. SL can be used for both D2D and V2X. Sidelink reference signals can include a sidelink positioning reference signal (SL-PRS).

[0141] The following describes the configuration information of the reference signal.

[0142] In the NR system, the configuration information of the reference signal is used to transmit the reference signal. For example, the configuration information of the reference signal can be used by the terminal device to receive or send the reference signal. For another example, the configuration information of the reference signal can also be used by the network device to send or receive the reference signal. The configuration information of the reference signal can be configured by the network, and then the configuration information of the reference signal can be configured to the terminal device through radio resource control (RRC) signaling. The configuration information of the reference signal may include the transmission mode of the reference signal (such as periodic transmission or non-periodic transmission), time domain resources, and frequency domain resources.

[0143] For example, the content of SRS configuration information is described using SRS configuration information as an example. In the NR system, SRS resource sets and SRS resources are introduced. SRS configuration information may include one or more SRS resource sets, or one or more SRS resources. Among them, an SRS resource set may include one or more SRS resources. An SRS resource may include one or more of the following:

[0144] (1) Number of antenna ports: In the NR system, one SRS resource can be configured with one, two, or four antenna ports.

[0145] (2) Time domain resources: In the NR system, time domain resources include the index and starting position of the occupied OFDM symbols. The OFDM symbol index can indicate the number of OFDM symbols occupied by the SRS resource. An SRS resource can be configured with 1, 2, 4, 8, or 12 OFDM symbols, and the starting position can be given by the startPosition field.

[0146] (3) Resource type: In the NR system, SRS resources can be classified into periodic, semi-persistent, or aperiodic types. For semi-persistent or periodic SRS resources, an SRS resource may include a period and a slot offset index (slot offset) specified for the terminal device.

[0147] (4) Frequency domain resources: Frequency domain resources include the RB index occupied by the SRS transmission. In the NR system, one SRS resource can occupy 4-272 RBs.

[0148] It should be noted that an SRS resource may also include the repetition factor of the SRS transmission (for example, it can be indicated by the field repetitionFactor), the offset of the SRS resource in the frequency domain, and the frequency hopping configuration of the SRS resource. For detailed description, please refer to 3GPP TS 38.211, which will not be repeated here.

[0149] Fourth, positioning:

[0150] In NR systems, positioning methods include time difference of arrival (TDOA) positioning or angle positioning. The process of these positioning methods may include measuring a received reference signal, obtaining measurement information of the reference signal, and then estimating the position based on the measurement information and auxiliary data. Positioning can include uplink positioning and downlink positioning, depending on the uplink and downlink directions of the reference signal, which are described below.

[0151] For uplink positioning: the terminal device sends an uplink reference signal (such as SRS) to the network device. Correspondingly, the network device receives the uplink reference signal from the terminal device and obtains measurement result information of the uplink reference signal. The measurement result information is used for position estimation.

[0152] For downlink positioning: The network device sends a downlink reference signal to the terminal device. The terminal device receives the downlink reference signal from the network device and obtains measurement results of the downlink reference signal. This measurement results information is used for position estimation.

[0153] It can be understood that positioning may also include uplink and downlink joint positioning, that is, performing position estimation based on the measurement result information of the uplink reference signal and the measurement result information of the downlink reference signal, which will not be described in detail.

[0154] It should be understood that the positioning principle of the above-mentioned TDOA may refer to: obtaining the time difference of the reference signal arriving from the transmitting end to different receiving ends, and the distance difference corresponding to each time difference may form a hyperbola with two receiving ends as the focus, and using the focus of two of the hyperbolas and the positions of multiple receiving ends, the position of the transmitting end may be estimated. In the embodiment of the present application, TDOA positioning may include uplink time difference of arrival (UL-TDOA) positioning, downlink time difference of arrival (DL-TDOA) positioning, or sidelink time difference of arrival (SL-TDOA) positioning, etc.

[0155] It can be understood that the principle of angle positioning can refer to: using a reference signal to determine the angle value of the transmitter relative to multiple receivers (such as the angle of arrival (AOA) or the angle of departure (AOD)), and based on the geometric relationship between the transmitter and the multiple receivers, the multiple angle values, and the position information of the receiver, the position of the transmitter can be estimated. In the embodiment of the present application, angle positioning includes uplink angle of arrival (UL-AOA) positioning, downlink angle of departure (DL-AOD) positioning, and sideways angle positioning.

[0156] Fifth, positioning scenarios under bandwidth constraints:

[0157] In practical applications, such as IoT services (such as wearables, industrial sensors, and video surveillance), there is a need for high-precision positioning, and the demand for communication is low. Specifically, in asset inventory scenarios, higher positioning accuracy (30 centimeters (cm) to 1 meter (m)) is required, but the demand for communication capabilities is low (for example, the communication rate can be less than or equal to 1Mbps). In other words, for communication capabilities, it is sufficient to meet the request and response of the control service. In addition, in future IoT services, such as smart logistics scenarios, higher requirements are placed on positioning accuracy (for example, positioning accuracy is less than 30cm).

[0158] In 3GPP, the terminal device in the above scenario can reduce the communication capability, and thus the terminal device can be called a reduced capability (REDCAP) terminal device. For example, the capability of a REDCAP terminal device may mean that the system bandwidth supported by the terminal device is reduced from 100MHz to 20MHz, that is, the bandwidth of the reference signal sent or received by the terminal device is 20MHz. However, there is a positive proportional relationship between the positioning accuracy and the bandwidth of the above reference signal, that is, the larger the bandwidth, the higher the positioning accuracy. Obviously, the bandwidth of the 20MHz reference signal cannot achieve sub-meter positioning accuracy.

[0159] It is understood that, in addition to the aforementioned REDCAP terminal devices, bandwidth limitation can also be applied to non-REDCAP terminal devices (or ordinary terminal devices). For example, ordinary terminal devices may support a 100 MHz system bandwidth, but considering energy conservation requirements, ordinary terminal devices may also use a narrow bandwidth (e.g., 20 MHz) to send reference signals to reduce power consumption.

[0160] In order to improve the positioning accuracy of terminal devices with limited bandwidth capabilities (such as the above-mentioned REDCAP terminal devices, or ordinary terminal devices with energy-saving requirements), and to meet the further requirements of positioning scenarios for positioning accuracy, a positioning method based on frequency hopping can be adopted. Among them, frequency hopping can refer to: sending or receiving reference signals of different frequency ranges on multiple time units. A positioning method based on frequency hopping can be used to improve positioning performance. For example, the transmitting end sends a narrowband reference signal on multiple time units in a frequency hopping manner, and then the receiving end can jointly process the reference signals sent or received on multiple time units, so that a reference signal with a virtual large bandwidth (or equivalent bandwidth, or effective bandwidth, or combined bandwidth, etc.) can be obtained, thereby improving positioning accuracy.

[0161] It should be understood that, according to uplink and downlink positioning, the positioning method based on frequency hopping may include scenario 1 and scenario 2, which are introduced below respectively.

[0162] Scenario 1: Uplink frequency hopping positioning

[0163] The terminal device sends a narrowband reference signal (for example, an SRS with a bandwidth of 20MHz) to the network device over multiple time units. Correspondingly, the network device receives a narrowband reference signal from the terminal device over multiple time units, that is, the network device can receive multiple narrowband reference signals. Among these multiple narrowband reference signals, at least two reference signals occupy frequency domain resources with different frequency ranges. For example, taking the terminal device working in FR1 and the terminal device sending a 20MHz reference signal in the first time unit and the second time unit as an example, the center frequency of the frequency domain resource corresponding to the first time unit is 500MHz, and the frequency range is 490MHz to 510MHz; the center frequency of the frequency domain resource corresponding to the second time unit is 520MHz, and the frequency range is 510MHz to 530MHz.

[0164] In one possible implementation, the network device can jointly process the multiple narrowband reference signals, for example, the multiple narrowband reference signals can be combined in the frequency domain to obtain an equivalent large-bandwidth reference signal, and positioning can be performed based on the equivalent large-bandwidth reference signal, thereby improving positioning accuracy. For example, in the above example, by combining the reference signal received by the first time unit with the reference signal received by the second time unit, a reference signal with an equivalent bandwidth of nearly 40MHz can be obtained to improve positioning accuracy. For another example, the network device can process the multiple narrowband reference signals separately, for example, obtain a single positioning measurement result based on a single narrowband reference signal, and then obtain a final positioning result based on multiple of the single positioning measurement results (for example, through a data processing algorithm) to improve positioning accuracy.

[0165] It should be understood that the above-mentioned terminal device sending a reference signal to the network device may mean that the terminal device sends the reference signal in the form of broadcast or unicast, and the embodiments of the present application do not specifically limit this.

[0166] Scenario 2: Downlink frequency hopping positioning

[0167] The network device can send a large-bandwidth reference signal (for example, a 100MHz PRS) in multiple time units. Accordingly, the terminal device receives the reference signal from the network device in a frequency hopping manner in multiple time units. The terminal device receiving the reference signal from the network device in a frequency hopping manner in multiple time units may mean that the terminal device receives a single narrowband reference signal in a single time unit, and the single narrowband reference signal may be a partial signal in the large-bandwidth reference signal sent by the network device. There are at least two reference signals in the multiple narrowband reference signals received in the multiple time units, and the corresponding frequency ranges of the at least two reference signals are different. For example, taking the terminal device operating in FR1, the terminal device receives a narrowband reference signal with a bandwidth of 20MHz in the first time unit and the second time unit as an example, the receiving frequency range corresponding to the first time unit is 490MHz~510MHz, and a narrowband reference signal with a bandwidth of 20MHz is received; the receiving frequency range corresponding to the second time unit is 510MHz~530MHz, and another narrowband reference signal with a bandwidth of 20MHz is received. In other words, the terminal device can receive the reference signal from the network device based on the frequency hopping method, and thus obtain multiple narrowband reference signals.

[0168] In one possible implementation, the terminal device may jointly process the multiple narrowband reference signals to obtain an equivalent large-bandwidth reference signal, thereby improving positioning accuracy.

[0169] Another possible implementation method is that the terminal device processes the multiple narrowband reference signals separately, for example, obtains a single positioning result based on a single narrowband reference signal, and then obtains the final positioning result based on multiple single positioning results (for example, through a data processing algorithm) to improve positioning accuracy.

[0170] It can be understood that the time units in the above scenarios 1 and 2 may refer to the wireless frames, subframes, time slots, or OFDM symbols in the aforementioned "time domain resources", and the embodiments of the present application do not make specific limitations on this.

[0171] It should be understood that the terminal device needs to switch (also called frequency switching / RF switching) when receiving the reference signal or data in a frequency hopping manner, and the switching requires a certain duration, which is called the "switching time". For example, after the terminal device receives the reference signal in the p-th time unit, it can switch the first frequency point to the second frequency point, and receive the reference signal or data at the second frequency point in the p+1-th time unit, where p is a positive integer. For another example, after the terminal device receives the data in the p-th time unit, it can switch the first frequency point to the second frequency point, and receive the reference signal or data at the second frequency point in the p+1-th time unit.

[0172] The switching time of a terminal device is related to its capabilities, the signal's SCS, and other factors. For example, for a REDCAP terminal device operating in FR1, the switching time can be 70 microseconds (μs), 140 μs, or 210 μs; operating in FR2, the switching time can be 35 μs, 70 μs, or 140 μs. Therefore, the switching duration of a terminal device can be 1 symbol, 2 symbols, 3 symbols, 4 symbols, 6 symbols, 8 symbols, 12 symbols, or even 16 symbols. FR1 includes the FR supported by LTE and NR systems. FR2 is a higher frequency than FR1 and can be considered the FR supported by NR systems.

[0173] That is to say, there may be a time interval between two adjacent time units in the above-mentioned multiple time units. The time interval can be represented by the above-mentioned 35μs, 70μs, 140μs, or symbols, or can be represented by at least one of the radio frames, subframes, time slots, and OFDM symbols in the aforementioned "time domain resources", and the embodiments of the present application do not specifically limit this. In addition, the time interval between any two adjacent time units in the above-mentioned multiple time units can be the same. Such a configuration is relatively simple and can effectively reduce signaling overhead and terminal complexity. For another example, the time interval between any two adjacent time units in the above-mentioned multiple time units can be different. Such a configuration is relatively flexible and can reduce the impact on communication.

[0174] It can be understood that the center frequency point and the center frequency can be expressed interchangeably, and are explained uniformly here and will not be repeated below.

[0175] It should be understood that the terminal device can adjust (or switch) the center frequency point so that the frequency range of the frequency domain resources occupied by sending or receiving reference signals in different time units is different, so that the receiving end can merge to obtain an equivalent reference signal with a larger bandwidth.

[0176] However, due to irrational hardware factors (such as frequency offset of RF devices or errors in operating parameters), adjusting the center frequency may introduce random phases, which in turn can produce random phase errors. This means that in two adjacent frequency domain resources, the waveform corresponding to the frequency domain resource with the lower center frequency has a phase difference from the waveform corresponding to the frequency domain resource with the higher center frequency. Due to random phase errors, when the reference signals of multiple different frequency domain resources corresponding to the aforementioned multiple time units are jointly processed, the waveforms in the frequency domain are discontinuous in phase, which can affect channel estimation or measurement results, potentially leading to poor positioning accuracy.

[0177] To address the above problem, two solutions can be proposed based on whether there is overlap between the multiple frequency domain resources corresponding to the multiple time units. They are introduced below.

[0178] Solution 1: Overlapping Frequency Hopping

[0179] Overlapping frequency hopping may refer to partial overlap between frequency domain resources corresponding to at least two time units among multiple time units. Then, during processing, the receiving end can estimate the above-mentioned random phase error based on the reference signal corresponding to the partially overlapping frequency domain resources. After compensation, a waveform that is nearly continuous in phase can be obtained, thereby obtaining a high-precision positioning result.

[0180] For example, Figure 1 is a schematic diagram of overlapping frequency hopping resources provided by an embodiment of the present application. As shown in Figure 1, the frequency hopping resources of the reference signal include: frequency domain resources #1 to frequency domain resources #5 corresponding to 5 time units, the center frequency point of frequency domain resource #1 to the center frequency point of frequency domain resource #5 are successively increased (or called frequency domain increment, or frequency increment), and frequency domain resources #1 to frequency domain resources #5 are sent in sequence, that is, the i-th time unit corresponds to the i-th frequency domain resource, 1≤i≤5. For example, the frequency domain resource corresponding to the first time unit is frequency domain resource #1, the frequency domain resource corresponding to the second time unit is frequency domain resource #2, and similarly, the frequency domain resource corresponding to the fifth time unit is frequency domain resource #5. Exemplarily, there is partial overlap between the frequency domain resources corresponding to two adjacent time units, and the fill pattern in Figure 1 is an overlapping frequency domain resource. It can be understood that in scheme 1, since there is partial overlap between the multiple frequency domain resources corresponding to multiple time units, the combined bandwidth after merging is less than the sum of the bandwidths between the multiple frequency domain resources corresponding to the multiple time units.

[0181] It should be understood that the first time unit is before the second time unit, the second time unit is before the third time unit, and similarly, the nth (n can be an integer greater than 3) time unit is before the n+1th time unit. This is explained uniformly here and will not be repeated below.

[0182] Option 2: Non-overlapping frequency hopping

[0183] For non-overlapping frequency hopping, the difference from the overlapping frequency hopping of Scheme 1 is that for one frequency hopping pattern period, there is no partial overlap in the frequency domain between the frequency domain resources corresponding to any two time units in multiple time units. The receiving end can estimate the above-mentioned random phase error based on the optimization algorithm (such as extrapolation), thereby obtaining a high-precision positioning result.

[0184] It should be understood that for solution 2, in two frequency domain resources adjacent to each other, there is a difference between the highest frequency of the frequency domain resource with a lower center frequency and the lowest frequency of the frequency domain resource with a higher center frequency. The difference can be less than or equal to a threshold value, which can be 0.5MHz, 1MHz, or 1.5MHz, etc. For example, the highest frequency of frequency domain resource #1 in Figure 2 is less than the lowest frequency of frequency domain resource #2, and the frequency domain interval between the two can be 0.5MHz, 1MHz, or 1.5MHz, etc. It can be understood that the threshold value can be determined based on the optimization algorithm used in the specific implementation, and the embodiments of the present application do not make specific limitations on this. It should be understood that the combined bandwidth in this example can be greater than the sum of the bandwidths between multiple frequency domain resources corresponding to multiple time units, which helps to improve positioning accuracy.

[0185] For example, Figure 2 is a schematic diagram of non-overlapping frequency hopping resources provided in an embodiment of the present application. The difference between Figure 2 and Figure 1 is that there is no partial overlap between any two frequency domain resources in frequency domain resources #1 to frequency domain resources #5. Exemplarily, frequency domain resources #1 to frequency domain resources #5 are discontinuous in the frequency domain, that is, in two adjacent frequency domain resources, there is a gap between the highest frequency of the frequency domain resource with a lower center frequency and the lowest frequency of the frequency domain resource with a higher center frequency, so that the combined bandwidth after merging can be greater than the sum of the bandwidths between multiple frequency domain resources corresponding to multiple time units.

[0186] It is understood that Figure 2 above is only an example, and frequency domain resources #1 to #5 may also be continuous. For example, in Figure 2, frequency domain resources #1 to #5 are continuous in the frequency domain, that is, of two adjacent frequency domain resources, the highest frequency of the frequency domain resource with the lower center frequency is the same as the lowest frequency of the frequency domain resource with the higher center frequency.

[0187] Furthermore, the above-mentioned solutions 1 and 2 are applicable to the above-mentioned scenarios 1 and 2.

[0188] It is understood that in addition to transmitting a narrowband reference signal in each time unit using frequency hopping (as shown in Figures 1 and 2), reference signals can also be transmitted using the method shown in Figure 3. As shown in Figure 3, the transmitting end (such as a network device or a terminal device) can also periodically transmit a wide-bandwidth reference signal, and the receiving end can receive the reference signal using overlapping frequency hopping or non-overlapping frequency hopping to reduce power consumption and complexity at the receiving end.

[0189] It should be understood that the frequency hopping resources (or frequency hopping patterns) shown in FIG. 1 and FIG. 2 are merely examples, and the frequency hopping pattern may also be other patterns, which will be described in detail below.

[0190] Sixth, frequency hopping pattern:

[0191] In order to accurately estimate the random phase error, the receiving end expects that the two frequency domain resources that are adjacent in the frequency domain in the frequency hopping pattern are also adjacent in the time domain, that is, the frequency domain resource corresponding to the first time unit is adjacent to the frequency domain resource corresponding to the second time unit. In order to ensure that the two frequency domain resources that are adjacent in the frequency domain are also adjacent in the time domain, the frequency domain positions of the frequency domain resources in the frequency hopping pattern increase or decrease in sequence with the order of the time units, and are continuous or partially overlapped in the frequency domain. For example, in Figure 1, the frequency domain positions of frequency domain resource #1 corresponding to the first time unit to the frequency domain resource #5 corresponding to the fifth time unit increase in sequence.

[0192] It can be understood that, based on the relationship between multiple frequency domain resources used for frequency hopping in the frequency hopping pattern, the frequency hopping patterns in the embodiments of the present application can be divided into frequency hopping pattern 1, frequency hopping pattern 2, and frequency hopping pattern 3. For frequency hopping pattern 1 and frequency hopping pattern 2, two frequency domain resources that are adjacent in the frequency domain are also adjacent in the time domain. For frequency hopping pattern 3, two frequency domain resources that are adjacent in the frequency domain are not adjacent in the time domain.

[0193] The following describes frequency hopping patterns 1 to 3 respectively.

[0194] 6.1. Frequency Hopping Pattern 1:

[0195] Frequency hopping pattern 1 can be called a staircase pattern or a non-wrapped staircase pattern. In frequency hopping pattern 1, the frequency domain positions of the multiple frequency domain resources used for frequency hopping increase or decrease sequentially with the order of the time units. That is, the frequency hopping method can be hopping in the direction of increasing frequency or hopping in the direction of decreasing frequency. In frequency hopping pattern 1, the frequency domain resource corresponding to the first time unit is the frequency domain resource with the lowest frequency domain position or the frequency domain resource with the highest frequency domain position among the multiple frequency domain resources used for frequency hopping.

[0196] For example, in Figure 1, the frequency domain positions between the multiple frequency domain resources described above are a frequency hopping pattern that increases in sequence with the time units, and the frequency domain resource #1 corresponding to the first time unit is the frequency domain resource with the lowest frequency domain position among the multiple frequency domain resources. It can be understood that the frequency hopping pattern between the multiple frequency domain resources described above, which decreases in sequence with the time units, is opposite to that in Figure 1, such as the frequency hopping pattern shown in Figure 4. In Figure 4, the frequency domain positions of frequency domain resource #1 corresponding to the first time unit to frequency domain resource #5 corresponding to the fifth time unit decrease in sequence, and the frequency domain position of frequency domain resource #1 is the frequency domain resource with the highest frequency domain position among the multiple frequency domain resources.

[0197] It can be understood that the frequency domain position of the above-mentioned frequency domain resources may refer to the center frequency point of the frequency domain resources, or the lowest frequency domain position of the frequency domain resources, or the highest frequency domain position of the frequency domain resources, or the frequency domain position of a certain sub-frequency domain unit (such as RB, subcarrier) in the frequency domain resources, or other parameters used to represent (or indicate, or reflect) the frequency domain position of the frequency domain resources, such as the index of RB, the index of subcarrier, etc., which are not specifically limited in the embodiments of the present application. The frequency domain resources may include multiple RBs, or multiple REs, or multiple subcarriers. The units of frequency domain resources may be RB, RE, Hz, KHz, MHz, etc., which are not elaborated in this application.

[0198] For frequency hopping in the direction of increasing frequency:

[0199] The frequency domain starting position of the frequency domain resource may refer to: the lowest frequency domain position of the frequency domain resource, such as the lower bound (or lower bound frequency) or lower limit (or lower limit frequency) of the frequency range of the frequency domain resource, or the lowest frequency, etc. Exemplarily, the frequency domain starting position of the above-mentioned frequency domain resource may be: the starting RB corresponding to the frequency domain resource, or the starting RE corresponding to the frequency domain resource, or the starting subcarrier corresponding to the frequency domain resource.

[0200] The frequency domain end position of the frequency domain resource may refer to: the highest frequency domain position of the frequency domain resource, such as the upper limit (or upper frequency limit) of the frequency range of the frequency domain resource, or the upper limit (or upper frequency limit), or the highest frequency, etc. Exemplarily, the frequency domain end position of the frequency domain resource may be: the end RB corresponding to the frequency domain resource, or the end RE corresponding to the frequency domain resource, or the end subcarrier corresponding to the frequency domain resource. It can be understood that for frequency hopping in the direction of increasing the frequency domain, the end frequency domain position of the frequency domain resource may also be referred to as the end position of the frequency domain resource, or the end position, etc., and no specific limitation is given to this.

[0201] For frequency hopping in the direction of decreasing frequency:

[0202] The frequency domain starting position of the frequency domain resource may refer to: the highest frequency domain position of the frequency domain resource, such as the upper limit (or upper frequency limit), or upper limit (or upper frequency limit), or highest frequency of the frequency range of the frequency domain resource. For example, the frequency domain starting position of the frequency domain resource may refer to: the starting RB, ending RE, or ending subcarrier corresponding to the frequency domain resource, without limitation.

[0203] The frequency domain end position of the frequency domain resource may refer to: the lowest frequency domain position of the frequency domain resource, such as the lower bound (or lower bound frequency) or lower limit (or lower limit frequency) of the frequency range of the frequency domain resource, or the lowest frequency, etc. For example, the frequency domain end position of the frequency domain resource may refer to: the end RB, end RE, or end subcarrier corresponding to the frequency domain resource, etc., without limitation.

[0204] It should be understood that the above frequency domain positions of frequency domain resources are described uniformly here and will not be repeated below.

[0205] 6.2, Frequency Hopping Pattern 2:

[0206] Frequency hopping pattern 2, also known as a wrapped staircase pattern, differs from frequency hopping pattern 1 primarily in that the frequency domain resource corresponding to the first time unit is not the lowest frequency domain resource or the highest frequency domain resource among the multiple frequency domain resources (used for frequency hopping). Frequency hopping pattern 2 can be divided into two scenarios based on the frequency hopping direction. The following describes frequency hopping pattern 2 in detail, with scenarios 1 and 2 being used.

[0207] Case 1:

[0208] Case 1 is where the frequency domain positions of multiple frequency domain resources increase sequentially over the time unit sequence, i.e., frequency hopping occurs in the direction of increasing frequency. It should be understood that frequency hopping pattern 2 may include M (e.g., M is an integer greater than or equal to 2) frequency domain resources, with M frequency domain resources corresponding to M time units, i.e., frequency hopping pattern 2 within a single cycle. The following describes Case 1a and Case 1b, depending on whether the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, or the frequency domain resource with the lowest frequency domain position.

[0209] Case 1a:

[0210] The frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources. The above-mentioned overall increasing order with the time units may mean that the frequency domain positions of the frequency domain resources corresponding to the 1st to the Kth time unit are increasing in sequence, and the frequency domain positions of the frequency domain resources corresponding to the K+1th to the Mth time unit are increasing in sequence. The frequency domain resource corresponding to the K+1th time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources.

[0211] That is, in case 1, after hopping to the frequency domain resource with the highest frequency domain position among the M frequency domain resources, the frequency domain resource corresponding to the next time unit starts hopping from the frequency domain resource with the lowest frequency domain position among the M frequency domain resources.

[0212] It can be understood that in case 1a, frequency hopping from the frequency domain resource with the highest frequency domain position to the frequency domain resource with the lowest frequency domain position can be called wrapping. For example, the kth time unit can be called the time unit before wrapping, where k is a positive integer less than or equal to K, and the K+1th time unit can be called the wrapping time unit. This example is used for explanation below.

[0213] For example, Figure 5 is a schematic diagram of a frequency hopping pattern 2 provided in an embodiment of the present application. As shown in Figure 5, the frequency hopping pattern 2 includes 5 frequency domain resources and 5 time units. The i-th time unit corresponds to the i-th frequency domain resource, and 1≤i≤5. Among them, frequency domain resource #1 is not the frequency domain resource with the lowest frequency domain position among the 5 frequency domain resources. The frequency domain positions of the frequency domain resources corresponding to the 1st time unit to the 2nd time unit are successively increased. The frequency domain positions of the frequency domain resources corresponding to the 3rd time unit to the 5th time unit are successively increased. The frequency domain resource #2 corresponding to the 2nd time unit is the frequency domain resource with the highest frequency domain position, and the frequency domain resource #3 corresponding to the 3rd time unit is the frequency domain resource with the lowest frequency domain position, that is, the loop starts from the 2nd time unit, that is, the 1st time unit and the 2nd time unit are the time units before the loop, and the 3rd time unit is the loop time unit.

[0214] Case 1b:

[0215] The frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources. The above-mentioned overall increasing order with the time units may mean that the frequency domain positions of the frequency domain resources corresponding to the 1st time unit to the K-1th time unit are increasing in sequence, and the frequency domain positions of the frequency domain resources corresponding to the Kth time unit to the Mth time unit are increasing in sequence. The frequency domain resource corresponding to the K-1th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources.

[0216] That is, in case 1b, wrapping starts from the K-1th time unit, that is, the kth time unit is the time unit before wrapping, where k is a positive integer less than K, and the Kth time unit is the wrapping time unit.

[0217] Case 2:

[0218] Case 2 is that the frequency domain positions among the multiple frequency domain resources decrease in sequence with the time units as a whole, that is, frequency hopping is performed in the direction of decreasing frequency.

[0219] It should be understood that, similar to the aforementioned case 1, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, or the frequency domain resource with the lowest frequency domain position, and is divided into case 2a and case 2b for explanation.

[0220] Case 2a:

[0221] The frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources. The above-mentioned overall decrease in sequence with the time units may mean that the frequency domain positions of the frequency domain resources corresponding to the 1st time unit to the K-1th time unit are successively decreased, and the frequency domain positions of the frequency domain resources corresponding to the Kth time unit to the Mth time unit are successively decreased. The frequency domain resource corresponding to the K-1th time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources.

[0222] That is, in case 2, after frequency hopping to the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, the frequency domain resource corresponding to the next time unit starts frequency hopping from the frequency domain resource with the highest frequency domain position among the M frequency domain resources.

[0223] It can be understood that in case 2, the frequency domain resource with the lowest frequency domain position hopping to the frequency domain resource with the highest frequency domain position can be called wrapping, and the kth time unit is the time unit before wrapping, where k is a positive integer less than K, and the Kth time unit is the wrapping time unit.

[0224] For example, Figure 6 is a schematic diagram of another frequency hopping pattern 2 provided in an embodiment of the present application. As shown in Figure 6, the frequency hopping pattern 2 includes 5 frequency domain resources and 5 time units. The i-th time unit corresponds to the i-th frequency domain resource, and 1≤i≤5. Among them, frequency domain resource #1 is not the frequency domain resource with the highest frequency domain position among the 5 frequency domain resources. The frequency domain positions of the frequency domain resources corresponding to the 1st to 3rd time units are successively lowered. The frequency domain positions of the frequency domain resources corresponding to the 4th to 5th time units are successively lowered. The frequency domain resource #3 corresponding to the 3rd time unit is the frequency domain resource with the lowest frequency domain position, and the frequency domain resource #4 corresponding to the 4th time unit is the frequency domain resource with the highest frequency domain position, that is, it starts to surround from the 3rd time unit, that is, the 3rd time unit is the time unit before the surround, and the 4th time unit is the surround time unit.

[0225] Case 2b:

[0226] The frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources. The above-mentioned overall decrease in sequence with the time units may mean that the frequency domain positions of the frequency domain resources corresponding to the 1st to the Kth time unit decrease in sequence, and the frequency domain positions of the frequency domain resources corresponding to the K+1th to the Mth time unit decrease in sequence. The frequency domain resource corresponding to the K+1th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources.

[0227] That is, in case 2b, wrapping begins at the Kth time unit, i.e., the Kth time unit is the time unit before wrapping, and the K+1th time unit is the wrapping time unit. For example, if k is less than or equal to K, the kth time unit can be called the time unit before wrapping, and the K+1th time unit can be called the wrapping time unit.

[0228] It should be understood that when the frequency hopping pattern 2 is periodic, two adjacent frequency hopping patterns 2 can form the pattern in frequency hopping pattern 1. For example, as shown in FIG7 , after the two frequency hopping patterns 2 shown in FIG5 are spliced ​​together, frequency domain resources #3 to frequency domain resources #7 therein can form the pattern in frequency hopping pattern 1.

[0229] 6.3. Frequency Hopping Pattern 3:

[0230] Frequency hopping pattern 3, also known as a non-staircase pattern, contains two frequency domain resources that are adjacent in the frequency domain but not adjacent in the time domain. For example, as shown in Figure 8 , frequency domain resource #1 corresponding to the first time unit and frequency domain resource #3 corresponding to the third time unit are adjacent in the frequency domain but separated by one time unit in the time domain.

[0231] It can be understood that for frequency hopping pattern 3, since two frequency domain resources that are adjacent in the frequency domain are not adjacent in the time domain, further support is required from the receiving end to estimate the random phase error according to the optimization algorithm.

[0232] It should be understood that the examples in Figures 4 to 8 above are illustrative of the overlapping frequency hopping in Solution 1. The examples corresponding to Solution 2 are similar, except that there are no overlapping frequency domain resources, which will not be repeated here.

[0233] Seventh, frequency hopping configuration information:

[0234] The above frequency hopping pattern can be configured through RRC signaling. The frequency hopping configuration information may include the following parameters, which are described below.

[0235] Parameter a, the frequency domain starting position of the frequency domain resource corresponding to the first time unit, that is, the first hop frequency domain starting position, for example, the starting RB of the frequency domain resource corresponding to the first time unit.

[0236] Parameter b, the bandwidth of the frequency domain resource corresponding to the i-th time unit in N time units; for example, taking the bandwidth occupied by each frequency hop as the same, the bandwidth of the frequency domain resource corresponding to the i-th time unit can be: the bandwidth occupied by each frequency hop or the number of RBs.

[0237] Parameter c, the frequency domain offset corresponding to two adjacent time units. The frequency domain offset corresponding to two adjacent time units may refer to: the offset value of the frequency domain resources corresponding to two adjacent time units in the frequency domain, which is uniformly explained here and will not be repeated below.

[0238] The frequency domain value of the frequency domain resources corresponding to the two adjacent time units in the frequency domain may be, for example, the frequency difference between the end frequency domain position of the frequency domain resource corresponding to the i-th time unit and the start frequency domain position of the frequency domain resource corresponding to the i+1 time unit, or the bandwidth size, or the number of occupied RBs. Another example may be the frequency difference between the center frequency of the frequency domain resource corresponding to the i-th time unit and the center frequency of the frequency domain resource corresponding to the i+1 time unit, or the bandwidth size, or the number of occupied RBs.

[0239] Parameter d, the overlap size between the frequency domain resource corresponding to the i-th time unit and the frequency domain resource corresponding to the j-th time unit in N time units, 1≤i≠j≤N; this overlap size can be bandwidth or the number of RBs, etc. It is understood that parameter d can also be used to indicate the overlap size between two adjacent frequency domain resources. For scheme 1, i.e., overlapping frequency hopping, parameter d can also be determined based on parameter c. For scheme 2, i.e., non-overlapping frequency hopping, parameter d may not be included in the frequency hopping configuration information, or the overlap size indicated by parameter d may be zero.

[0240] In one possible implementation, the bandwidth of the frequency domain resources corresponding to each of the N time units is the same, the frequency domain offsets between any two adjacent time units in the N time units are the same, or the overlap between the frequency domain resources corresponding to the i-th time unit and the j-th time unit in the N time units is the same. This simplifies the configuration, reduces signaling overhead, and reduces transmitter complexity. It is understood that the above parameters may also vary, and this is not specifically limited in this embodiment of the present application.

[0241] Parameter e, the frequency hopping times or the number of frequency hopping, that is, the value of N in N time units within a frequency hopping pattern period.

[0242] It can be understood that the overlap size between the frequency domain resource corresponding to the i-th time unit and the frequency domain resource corresponding to the j-th time unit in the above-mentioned N time units can refer to: the overlap size between two frequency domain resources adjacent to each other in the frequency domain. Among them, the overlap size between any two adjacent frequency domain resources in the frequency hopping pattern can be the same, and thus the overlap size between the two adjacent frequency domain resources in the frequency domain can be replaced by: frequency domain overlap bandwidth.

[0243] It can be understood that the frequency hopping resources in frequency hopping pattern 1 can be determined based on the above-mentioned frequency hopping configuration information. For example, in frequency hopping pattern 1, the number of frequency hops within a frequency hopping pattern period is N, i.e., N time units. Each of the N time units is used to transmit a reference signal, which means that frequency hopping pattern 1 includes N frequency domain resources. Specifically, the frequency domain starting position of the frequency domain resource corresponding to the first time unit in frequency hopping pattern 1 is the frequency domain resource corresponding to the Kth time unit. In other words, in frequency hopping pattern 1, the frequency domain starting position of the first hop is: the frequency domain resource with the lowest frequency domain position or the frequency domain resource with the highest frequency domain position among the N frequency domain resources. In other words, based on the characteristic that the frequency domain resources in frequency hopping pattern 1 increase or decrease sequentially with the order of the time units, combined with the bandwidth of the frequency domain resource corresponding to the i-th time unit, the frequency domain offset between two adjacent time units, the number of frequency hops, etc., the frequency domain resource corresponding to each of the N time domain units in frequency hopping pattern 1 can be determined.

[0244] However, the above frequency hopping configuration information is not applicable to frequency hopping pattern 2 and frequency hopping pattern 3, and there are two specific problems:

[0245] Question 1: Since the resources used by the transmitter to send a reference signal are related to network scheduling, that is, the frequency domain resource corresponding to the first time unit may not be the frequency domain resource with the highest frequency domain position among the multiple frequency domain resources used for frequency hopping, or the frequency domain resource with the lowest frequency domain position, the network will use frequency hopping pattern 2 to send or receive the reference signal. However, for frequency hopping pattern 2, the above-mentioned frequency hopping configuration information cannot determine a unique frequency hopping pattern 2. For example, as shown in Figure 9, according to the above-mentioned frequency hopping configuration information, there may be multiple possible frequency hopping patterns, such as the first frequency hopping pattern 2 and the second frequency hopping pattern 2. When the terminal device sends a reference signal according to the above-mentioned frequency hopping configuration information, it may use any one of the frequency hopping patterns 2 (for example, selecting the first frequency hopping pattern 2) to send the reference signal. One possible scenario is that the network believes that the terminal device uses the second frequency hopping pattern 2 and that the non-overlapping part of the third frequency domain resource in the first frequency hopping pattern 2 is idle. It may schedule other terminal devices to send data or reference signals in the third frequency domain resource (non-overlapping part). In this way, both terminal devices send data or reference signals in the third frequency domain resource (non-overlapping part), which will interfere with each other.

[0246] Question 2: For terminal devices supporting frequency hopping pattern 3, the above-mentioned frequency hopping configuration information cannot determine the frequency domain resources corresponding to each time unit in multiple time units after the first time unit, that is, it cannot determine the frequency domain resources of the subsequent hops, and the interference problem in the above-mentioned question 1 will also exist.

[0247] Based on the above problems, the embodiments of the present application propose the following technical solutions. The technical solutions in the embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0248] To facilitate understanding of the embodiments of the present application, the business application scenarios of the present application are described using the communication system architecture shown in FIG10 as an example. It should be understood that the architecture of the communication system and the business application scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Those skilled in the art will appreciate that, with the evolution of communication architectures and the emergence of new business application scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

[0249] As shown in Figure 10, a schematic diagram of the architecture of a communication system 100 provided in an embodiment of the present application is provided. Figure 10 takes the communication system 100 as an example, including at least one network device (such as 110a or 110b in Figure 10), and at least one terminal device (such as 120a to 120j in Figure 10) connected to the network device. It should be understood that the network device can be connected to the core network (CN) wirelessly or wired, and the CN device and the network device in the CN can be different physical devices, or can be the same physical device that integrates the CN logical function and the radio access network logical function. It can be understood that the number of network devices and terminal devices in Figure 10 is only an example, and can be more or less, and the embodiment of the present application does not specifically limit this.

[0250] Figure 11 is a schematic diagram of an application scenario applicable to an embodiment of the present application, showing a business-based positioning service network architecture. In the positioning architecture based on the 5G core network (5G core network, 5GC), the functions of each functional entity are as follows: The location management function (LMF) is responsible for supporting different types of location services related to the target terminal device, including positioning the terminal device and transmitting auxiliary data to the terminal device. LMF can perform the following information interaction with the 4G base station (such as ng-eNB) or the 5G base station (such as gNB) and the terminal device: interact with the ng-eNB / gNB through the NR positioning protocol A (NR positioning protocol annex, NRPPa) message, such as obtaining PRS configuration information, SRS configuration information, cell timing, cell location information, etc.; or, transmit UE capability information, auxiliary information, measurement information, etc. with the terminal device through the LTE positioning protocol (LTE positioning protocol, LPP) message. The access and mobility management function (AMF) can receive location service requests related to the target terminal device from the 5G 5GC location service (LCS) entity, or the AMF itself can initiate some location services on behalf of a specific target terminal device and forward the location service request to the LMF. If the location calculation is completed on the terminal device side, the AMF obtains the location information reported by the terminal device and returns the relevant location information to the 5GC LCS entity. The terminal device can measure downlink signals from NG-RAN and other sources to support positioning; the ng-eNB / gNB can provide configuration information for the target terminal device and communicate this configuration information to the LMF. In addition, NL1 in Figure 11 represents the NL1 interface, NG-C represents the NG-C interface, LTE-Uu represents the LTE-Uu interface, NR-Uu represents the NR-Uu interface, and Xn represents the connection between the ng-eNB and the gNB.

[0251] The above network devices and terminal devices are introduced below respectively.

[0252] For network devices:

[0253] In one possible implementation, a network device may be a device that communicates with a terminal device. The network device may also be referred to as an access network, RAN device, access node, RAN entity, or RAN node. As shown in FIG10 , multiple network devices in the communication system 100 may be nodes of the same type or different types. In some scenarios, the roles of the network device and the terminal device are opposite. For example, the network element 120i in FIG10 may be a helicopter or drone, which can be configured as a mobile base station. For terminal devices 120j that access the communication system 100 through the network element 120i, the network element 120i may be the base station 110a; however, for the base station 110a, the network element 120i is a terminal device. Network devices and terminal devices are sometimes referred to as communication devices. For example, the network elements 110a and 110b in FIG10 may be understood as communication devices with base station functions, and the network elements 120a-120j may be understood as communication devices with terminal functions.

[0254] In one possible scenario, the network device may be a transmission and reception point (TRP), a base station, a remote radio unit (RRU) or a baseband unit (BBU) (also referred to as a digital unit (DU)) of a split base station, a broadband network gateway (BNG), an aggregation switch, a non-3GPP access device, a relay station or an access point, etc. The network device may be a macro base station (such as the network element 110a in FIG10 ), a micro base station or an indoor station (such as the network element 110b in FIG10 ), a relay node or a donor node, or a wireless controller in a CRAN scenario. Optionally, the network device may also be a server, a wearable device, a vehicle or an on-board device, etc. For example, the network device in a V2X system may be a road side unit (RSU). In addition, the network device in the embodiment of the present application can be an eNB or eNodeB (evolutional NodeB) in LTE, a wireless controller in a CRAN scenario, a base station in a 5G communication system (such as the next generation Node B (gNodeB, gNB)), or a base station in a future evolution system (such as a 6G communication system), etc., which is not specifically limited here.

[0255] In one possible implementation, a network device may include a centralized unit (CU), a DU, a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The network device may also include an active antenna unit (AAU). The CU implements some of the network device's functions, while the DU implements some of the network device's functions. For example, the CU is responsible for processing non-real-time protocols and services, and implementing the functions of the RRC and / or packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC), media access control (MAC), and PHY layers. The AAU implements some physical layer processing functions, RF processing, and active antenna-related functions. Because RRC layer information ultimately becomes physical (PHY) layer information, or is converted from PHY layer information, in this architecture, higher-layer signaling, such as RRC signaling, can also be considered to be sent by the DU, or by both the DU and the AAU. It is understood that the network device may include one or more of a CU node, a DU node, and an AAU node. In addition, the CU may be classified as a network device in the RAN or a network device in the CN, which is not limited in this embodiment of the present application.

[0256] It should be understood that in different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called open CU (open CU, O-CU), DU may also be called open DU (open DU, O-DU), CU-CP may also be called open CU-CP (open CU-CP, O-CU-CP), CU-UP may also be called open CU-UP (open CU-UP, O-CU-UP), and RU may also be called open RU (open RU, O-RU). For convenience of description, the embodiments of the present application are described by taking CU, CU-CP, CU-UP, DU and RU as examples. Any of the CU (or CU-CP, CU-UP), DU and RU in the embodiments of the present application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0257] For terminal devices:

[0258] In one possible implementation, the terminal device may be a device for implementing wireless communication functions, such as a terminal or a chip that can be used in a terminal, etc. The terminal may be a user equipment (UE), an access terminal, a terminal unit, a terminal station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a terminal agent, or a terminal device, etc. in a 5G network or a future evolved public land mobile network (PLMN). The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a VR terminal device, an AR terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical care, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. In one possible implementation, the terminal device may be mobile or fixed.

[0259] The structures of the above-mentioned network devices and terminal devices are introduced below.

[0260] In one possible implementation, the network device and terminal device in the embodiment of the present application may also be referred to as a communication device, which may be a general device or a dedicated device, and the embodiment of the present application does not specifically limit this.

[0261] In one possible implementation, the relevant functions of the terminal device or network device in the embodiments of the present application can be implemented by a single device, or by multiple devices, or by one or more functional modules within a single device, and the embodiments of the present application do not specifically limit this. It is understood that the above functions can be network elements in hardware devices, software functions running on dedicated hardware, a combination of hardware and software, or virtualized functions instantiated on a platform (e.g., a cloud platform).

[0262] For example, the relevant functions of the network device or terminal device in the embodiment of the present application can be implemented by the communication device 120 in Figure 12. Figure 12 shows a structural diagram of the communication device 120 provided in an embodiment of the present application. The communication device 120 includes one or more processors 1201. Optionally, the communication device may further include a communication line 1202 and at least one communication interface (Figure 12 is only exemplary and is illustrated by taking a communication interface 1204 and a processor 1201 as an example). Optionally, the communication device 120 may further include a memory 1203.

[0263] The processor 1201 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application.

[0264] The communication line 1202 may include a path for connecting different components.

[0265] Communication interface 1204 may be a transceiver module for communicating with other devices or communication networks, such as Ethernet, RAN, or wireless local area networks (WLAN). For example, the transceiver module may be a device such as a transceiver or a transceiver. In one possible implementation, communication interface 1204 may also be a transceiver circuit within processor 1201, used to implement signal input and output to the processor.

[0266] The memory 1203 may be a device having a storage function. For example, it may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, an optical disc storage (including a compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory may exist independently and be connected to the processor via a communication line 1202. The memory may also be integrated with the processor.

[0267] Optionally, the memory 1203 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 1201. The processor 1201 is used to execute the computer-executable instructions stored in the memory 1203, thereby implementing the method provided in the embodiment of the present application.

[0268] Alternatively, in an embodiment of the present application, the processor 1201 may also perform functions related to the processing of the method provided in the following embodiments of the present application, and the communication interface 1204 is responsible for communicating with other devices or communication networks, which is not specifically limited in the embodiment of the present application.

[0269] In a possible implementation, the memory 1203 in the embodiment of the present application may also be used to store information or parameters described in the following embodiments, such as the first frequency, the second frequency, BWP, frequency hopping configuration information, or a reference signal.

[0270] The computer-executable instructions in the embodiments of the present application may also be referred to as application code, which is not specifically limited in the embodiments of the present application.

[0271] In a specific implementation, as an embodiment, the processor 1201 may include one or more CPUs, such as CPU0 and CPU1 in FIG12 .

[0272] In a specific implementation, as an embodiment, the communication device 120 may include multiple processors, such as the processor 1201 and the processor 1207 in FIG12 . Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The processor herein may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0273] In a specific implementation, as an embodiment, the communication apparatus 120 may further include an output device 1205 and an input device 1206. The output device 1205 communicates with the processor 1201 and may display information in a variety of ways.

[0274] The communication device 120 can be a general-purpose device or a dedicated device. For example, the communication device 120 can be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a device having a structure similar to that shown in FIG12 . The embodiments of the present application do not limit the type of the communication device 120.

[0275] It should be understood that, in response to the aforementioned “Question 1”, an embodiment of the present application provides a resource determination method, the execution subject of which may be a first device. The first device may be the terminal device in Figures 10 to 12 above, or a module or unit of the terminal device (such as a chip, chip system, chip circuit, or circuit of the terminal device). Alternatively, the first device may be the network device in Figures 10 to 12 above, or a module or unit of the network device (such as a chip, chip system, chip circuit, or circuit of the terminal device).

[0276] In one possible implementation, the first device determines the first frequency and / or the second frequency, and determines the correspondence between M frequency domain resources for frequency hopping and N time units based on the first frequency and / or the second frequency, and the N time units are used to send or receive reference signals. The first frequency is the lowest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, the second frequency is the highest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, M is an integer greater than 1, and N is an integer greater than 1. In this way, the first device can determine the first frequency and / or the second frequency, and determine the correspondence between M frequency domain resources for frequency hopping and N time units, so that the frequency hopping resources for sending or receiving the reference signal can be uniquely determined to avoid sending or receiving the reference signal on the same frequency hopping resource with other devices, thereby avoiding interference, which helps to improve positioning accuracy.

[0277] It should also be understood that, in response to the aforementioned "Problem 2," an embodiment of the present application provides a resource determination method, the execution subject of which may be a first device. The first device may be the terminal device in Figures 10 to 12 above, or a module or unit of the terminal device (e.g., a chip, chip system, chip circuit, or circuit, etc. of the terminal device).

[0278] In one possible implementation, the first device receives frequency hopping configuration information and determines the correspondence between N time units and M frequency domain resources based on the frequency hopping configuration information. The frequency hopping configuration information is used to indicate that the i-th time unit in the N time units is associated with the j-th frequency domain resource in the M frequency domain resources. The M frequency domain resources are used for frequency hopping, and the N time units are used to send or receive reference signals, where M is an integer greater than 1, and N is an integer greater than 1, 1≤i≤N, and 1≤j≤M. In this way, the first device can determine the correspondence between each time unit in the N time units and each frequency domain resource in the M frequency domain resources based on the frequency hopping configuration information, so that the frequency hopping resource for sending or receiving the reference signal can be uniquely determined to avoid sending or receiving the reference signal on the same frequency hopping resource with other devices, thereby avoiding interference and helping to improve positioning accuracy.

[0279] The above method provided in the embodiment of the present application will be described in detail below with reference to Figures 13 to 20.

[0280] It should be understood that the signals between the various devices or apparatuses, the names of the parameters in the signals, or the names of the information carried by the signals in the following embodiments of the present application are merely examples, and other names may also be used in specific implementations. The embodiments of the present application do not impose specific limitations on this.

[0281] FIG13 is a flow chart of a resource determination method provided in an embodiment of the present application. As shown in FIG13 , the resource determination method includes the following steps:

[0282] Step S1301: The first device determines a first frequency and / or a second frequency.

[0283] Step S1302: The first apparatus determines a correspondence between M frequency domain resources for frequency hopping and N time units based on the first frequency and / or the second frequency. The N time units are used to send or receive reference signals, the first frequency is the lowest frequency domain position of the frequency domain resources occupied by the first apparatus for sending or receiving reference signals, the second frequency is the highest frequency domain position of the frequency domain resources occupied by the first apparatus for sending or receiving reference signals, M is an integer greater than 1, and N is an integer greater than 1.

[0284] Steps S1301 and S1302 are further described below.

[0285] For step S1301:

[0286] It should be understood that step S1301 involves a first device, a first frequency, and a second frequency, which are described below respectively.

[0287] 1. First device:

[0288] It should be understood that the first device can be divided into type 1 and type 2, which are described below respectively.

[0289] For Type 1:

[0290] In one possible implementation, the first device may be the terminal device in Figures 10 to 12 above, or a module or unit of the terminal device. For example, the first device may be a chip, a chip system, a chip circuit, or a circuit of the terminal device. The terminal device may be a REDCAP terminal device or an ordinary terminal device. It can be understood that the first device sends a reference signal, which is applicable to the aforementioned "Scenario 1", that is, uplink frequency hopping positioning, that is, the first device can determine the correspondence between the M frequency domain resources for sending the reference signal and the N time units, and determine the frequency hopping pattern for sending the reference signal to the network device based on the correspondence. In this way, the frequency hopping resource for sending the reference signal can be uniquely determined to avoid sending the reference signal to the network device on the same frequency hopping resource with other devices, thereby avoiding interference.

[0291] It can also be understood that the first device receives the reference signal, which is applicable to the aforementioned "Scenario 2", namely, downlink frequency hopping positioning, that is, the network device periodically sends a large-bandwidth reference signal, and the first device receives the reference signal from the network device in a frequency hopping manner (each time receiving part of the large-bandwidth reference signal sent by the network device).

[0292] It should be understood that the first device receives the reference signal, which is also applicable to scenario 3. Scenario 3 is that the network device sends a narrowband reference signal (for example, a PRS with a bandwidth of 20 MHz) to the terminal device over multiple time units. Accordingly, the terminal device receives the narrowband reference signal from the network device over multiple time units. In other words, the network device can frequency hop to send multiple narrowband reference signals, and the terminal device can frequency hop to receive multiple narrowband reference signals. That is, the first device can determine the correspondence between the M frequency domain resources for sending the reference signal and the N time units, and determine the frequency hopping pattern for receiving the reference signal from the network device based on the correspondence, so that the frequency hopping resource for receiving the reference signal from the network device can be uniquely determined to avoid receiving the reference signal from the network device on the wrong frequency hopping resource.

[0293] For Type 2:

[0294] In one possible implementation, the first device may be the network device, or a module or unit of the network device in Figures 10 to 12. For example, the first device may be a chip, a chip system, a chip circuit, or a circuit of the network device.

[0295] That is to say, the first device can determine the correspondence between the M frequency domain resources for sending the reference signal and the N time units, and determine the frequency hopping pattern for sending the reference signal based on the correspondence, so that the frequency hopping resources for the first device to send the reference signal to the terminal device can be uniquely determined, and the terminal device can then receive the reference signal. Furthermore, the first device can save power consumption by sending the reference signal in a frequency hopping manner to meet the energy-saving requirements of the first device. Therefore, in the embodiment of the present application, while meeting the energy-saving requirements of the network device, the positioning accuracy can be further improved. Of course, ordinary terminal devices can also periodically send large-bandwidth reference signals, and the network device can receive the reference signal using overlapping frequency hopping or non-overlapping frequency hopping to reduce the power consumption and reception complexity of the network device.

[0296] It can be understood that the time unit can also be called a frequency hopping moment, or a frequency hopping time domain resource, etc. For details, please refer to the description of the time unit in the aforementioned "Positioning scenario under bandwidth limitation", which will not be repeated here.

[0297] 2. First frequency and second frequency:

[0298] It should be understood that the first frequency is the lowest frequency domain position of the frequency domain resources occupied by the first device for sending or receiving a reference signal, which can be replaced by: the first frequency is the lowest frequency domain position of the frequency domain resources allowed to be occupied by the first device for sending or receiving a reference signal. The second frequency is the highest frequency domain position of the frequency domain resources occupied by the first device for sending or receiving a reference signal, which can be replaced by: the second frequency is the highest frequency domain position of the frequency domain resources allowed to be occupied by the first device for sending or receiving a reference signal. Among them, the occupied frequency domain resources can refer to an occupied frequency range or BWP, etc. In other words, the first frequency and / or the second frequency can be associated with the capabilities of the first device.

[0299] It can be understood that the lowest frequency domain position of the frequency domain resource can be the frequency domain starting position in the aforementioned "Frequency Hopping Pattern 1", and the frequency domain starting position can be, for example: the starting RB corresponding to the frequency domain resource, or the starting RE corresponding to the frequency domain resource, or the starting subcarrier corresponding to the frequency domain resource. The highest frequency domain position of the above-mentioned frequency domain resource can be, for example: the highest RB corresponding to the frequency domain resource, or the highest RE corresponding to the frequency domain resource, or the highest subcarrier corresponding to the frequency domain resource. For the above-mentioned lowest frequency domain position and the highest frequency domain position, please refer to the relevant instructions in the aforementioned "Frequency Hopping Pattern 1", which will not be repeated here.

[0300] In one possible implementation, the first frequency is the sum of the reference frequency and the first frequency domain offset value, and / or the second frequency is the sum of the reference frequency and the second frequency domain offset value. The reference frequency is one of the following: the starting frequency of the BWP, the highest frequency of the BWP, the center frequency of the BWP, or the reference frequency corresponding to the BWP. For example, the reference frequency corresponding to the BWP may be point A (point A). For details of point A, please refer to TS 38.211 and will not be repeated here. It should be understood that the reference frequency corresponding to the above-mentioned first frequency and the reference frequency corresponding to the second frequency may be the same or different. For example, the first frequency may be the sum of the starting frequency of the BWP and the first frequency domain offset value, and the second frequency may be the sum of the highest frequency of the BWP and the second frequency domain offset value.

[0301] The BWP, the first frequency domain offset value, and the second frequency domain offset value are further described below.

[0302] 2.1. For BWP:

[0303] It can be understood that the BWP can be the initial BWP, activated BWP described in the aforementioned "frequency domain resources", or other BWPs except the activated BWP among the multiple BWPs configured by the network, and the details are not repeated here.

[0304] For another example, the BWP may be a virtual BWP. The virtual BWP may have the same SCS as the active BWP, but with a larger bandwidth. The bandwidth (or frequency range) of the virtual BWP may not be the same as the active BWP configured by the network. The virtual BWP may have an extended virtual boundary for frequency hopping. For example, the available bandwidth of the virtual BWP may be greater than the bandwidth of the active BWP of the first device. That is, if the first frequency and / or the second frequency is located at the starting frequency, highest frequency, or reference frequency of the virtual BWP, M frequency domain resources may be located within the virtual BWP. Thus, REDCAP terminal devices may also use frequency domain resources aligned with the BWP of ordinary terminal devices.

[0305] For example, for a BWP configured by the network, the first frequency or the second frequency may be located on an inactive BWP outside the active BWP. In this way, the BWPs between the REDCAP terminal device and the ordinary terminal device may better match resources (eg, align RBs).

[0306] That is to say, the first frequency and / or the second frequency can be determined by the relevant reference frequency of the BWP, and then the M frequency domain resources determined by the first frequency and / or the second frequency can be flexibly designed, for example, the M frequency domain resources can be located within the activated BWP or across different BWPs.

[0307] 2.2. For the first frequency domain offset value:

[0308] Optionally, the first frequency domain offset value may be 0. In other words, the first frequency may be the starting frequency of the above-mentioned BWP, or the first frequency may be the center frequency of the above-mentioned BWP, or the first frequency may be the reference frequency corresponding to the above-mentioned BWP. Of course, the first frequency domain offset value may be greater than 0, so that the first frequency may be greater than the starting frequency of the above-mentioned BWP. Alternatively, the first frequency domain offset value may be less than 0, so that the first frequency may be less than the starting frequency of the above-mentioned BWP. Among them, the first frequency domain offset value may be represented (or embodied) by the number of RBs, the number of REs, the number of subcarriers, or the bandwidth, etc. The first frequency domain offset value may be 1 RB, 2 RBs, or more RBs, and this embodiment of the present application does not specifically limit this. It can be understood that the unit of the first frequency domain offset value may be Hz, KHz, or MHz, etc., without specific limitation.

[0309] 2.3. For the second frequency domain offset value:

[0310] Optionally, the second frequency domain offset value may be 0. In other words, the second frequency may be the highest frequency of the BWP, or the second frequency may be the center frequency of the BWP. Of course, the second frequency domain offset value may be greater than 0, meaning the second frequency may be greater than the highest frequency of the BWP; or the second frequency domain offset value may be less than 0, meaning the second frequency may be less than the highest frequency of the BWP.

[0311] In one possible implementation, the first frequency and / or the second frequency may be agreed upon by a protocol; or, the first frequency and / or the second frequency may be negotiated in advance between the first device and the network; or, the first frequency and / or the second frequency may be indicated or configured by the network.

[0312] It can be understood that the network indicates the first frequency and / or the second frequency so that the correspondence between M frequency domain resources and N time units can be aligned between the first device and the receiving end (for example, the network device in scenario 1, or the terminal device in scenario 3) to avoid sending or receiving reference signals on incorrect frequency hopping resources.

[0313] It should be understood that for the specific implementation of the first frequency and / or the second frequency being indicated or configured by the network, reference may be made to the method flow shown in FIG18 below, which will not be repeated here.

[0314] For step S1302:

[0315] For ease of understanding, the relationship between M and N is first introduced, and then the relationship between M frequency domain resources and N time units is explained.

[0316] For the relationship between M and N:

[0317] In one possible implementation, M may be equal to N. That is, the first device may send a reference signal in one time unit. Different time units correspond to different frequency domain resources, or the time units correspond to the frequency domain resources one-to-one.

[0318] In another possible implementation, M may be greater than N. That is, the first apparatus may send multiple reference signals in one time unit through multiple different frequency domain resources. The time units corresponding to different frequency domain resources may be the same, or multiple frequency domain resources may correspond to the same time unit.

[0319] In another possible implementation, M may be smaller than N. That is, the first device may send a reference signal occupying the same frequency domain resource over multiple time units. The frequency domain resources corresponding to different time units may be the same, or multiple time units may correspond to the same frequency domain resource.

[0320] In one possible implementation, N time units may be time units for transmitting N reference signals within a reference signal frequency hopping pattern period. The N in the N time units may refer to the number of frequency hops in a frequency hopping pattern. The N time units are time units for transmitting N reference signals, including each of the N time units for transmitting one reference signal.

[0321] That is to say, within a frequency hopping pattern period, a reference signal can be sent at each frequency hopping moment.

[0322] In one possible implementation, step S1302 can be replaced by: the first device determines N frequency domain resources or N frequency domain resource sets corresponding to N time units for frequency hopping, the N time units are used to send or receive reference signals, the first frequency is the lowest frequency domain position of the frequency domain resources occupied by the first device to send or receive the reference signal, the second frequency is the highest frequency domain position of the frequency domain resources occupied by the first device to send or receive the reference signal, and N is an integer greater than 1.

[0323] It can be understood that the N frequency domain resource sets may include multiple frequency domain resources, and the number of the multiple frequency domain resources may be equal to the number of reference signals simultaneously sent or received by the first device in the same time unit.

[0324] That is, the first device may determine the first frequency and / or the second frequency based on the frequency domain resources occupied by the first device for transmitting or receiving a reference signal, and determine that the frequency hopping resources may be a one-to-one correspondence between N time units and N frequency domain resources, that is, one time unit may be used to transmit or receive one reference signal. Alternatively, the first device may determine that the frequency hopping resources may be a one-to-one correspondence between N time units and N sets of frequency domain resources, such that one time unit may correspond to multiple different frequency domain resources, and thus the first device may simultaneously transmit or receive multiple different reference signals.

[0325] In another possible implementation, step S1302 can be replaced by: determining N frequency domain resources or N frequency domain resource sets corresponding to N time units based on the first frequency and / or the second frequency, the N time units are used to send or receive reference signals, the first frequency is lower than the lowest frequency of the N frequency domain resources, the second frequency is higher than the highest frequency of the N frequency domain resources, and N is an integer greater than 1.

[0326] That is, the first device can determine N frequency domain resources within the frequency range corresponding to the first frequency and / or the second frequency based on the first frequency and / or the second frequency, and determine the correspondence between N time units and N frequency domain resources or N frequency domain resource sets.

[0327] In a possible implementation, the reference signal is used for positioning. For example, the reference signal may be the reference signal described in the aforementioned “reference signal”, which will not be described in detail here.

[0328] It will be understood that the reference signals transmitted or received over N time units are for the same device or apparatus. For example, in scenario 1, the reference signal is transmitted by the first apparatus over N time units. In scenario 2, the reference signal received by the first apparatus over N time units is a wideband reference signal from the network apparatus. In scenario 3, the reference signal received by the first apparatus over N time units is a narrowband reference signal from the network apparatus.

[0329] For the relationship between M frequency domain resources and N time units:

[0330] It should be understood that the M frequency domain resources and N time units may refer to the frequency domain resources and time units within a frequency hopping pattern in which two frequency domain resources that are adjacent in the frequency domain are also adjacent in the time domain, for example, the M frequency domain resources and N time units in the aforementioned "frequency hopping pattern 1" and "frequency hopping pattern 2".

[0331] It can be understood that the correspondence between the M frequency domain resources and the N time units may include: the correspondence between each time unit in the N time units and each frequency domain resource in the M frequency domain resources. Among them, the correspondence between each time unit in the N time units and each frequency domain resource in the M frequency domain resources may refer to: the correspondence between each time unit in the N time units and the frequency domain position of each frequency domain resource in the M frequency domain resources. It can be understood that the frequency domain position of the frequency domain resource may refer to the center frequency point of the frequency domain resource, the frequency domain starting position, the frequency domain ending position, etc. For details, please refer to the relevant description in the aforementioned "Frequency Hopping Pattern 1" and will not be repeated here. It should be understood that the correspondence between the above-mentioned M frequency domain resources and N time units can be determined in three ways, namely, ways 1 to 3. Among them, way 1 refers to determining the above-mentioned correspondence based on the first frequency, way 2 refers to determining the above-mentioned correspondence based on the second frequency, and way 3 refers to determining the above-mentioned correspondence based on the first frequency and the second frequency. In the embodiment of the present application, the frequency hopping pattern can be uniquely determined through the above-mentioned methods 1 to 3, so as to solve the problem in the aforementioned "Problem 1" that there are multiple possible frequency hopping patterns for the frequency hopping pattern 2.

[0332] It is understood that, given the similarities in principle between Solutions 1 and 2, the following description of the specific implementation of step S1302 uses the overlapping frequency hopping pattern of Solution 1 as an example. For the non-overlapping frequency hopping pattern of Solution 2, please refer to the corresponding description of Solution 1. These descriptions are unified here and will not be repeated. It should be understood that Solution 3 is a combination of Solution 1 and Solution 2. For its specific implementation, please refer to Solution 1 and Solution 2 and will not be repeated here.

[0333] The following introduces method 1 and method 2 respectively.

[0334] A. Method 1:

[0335] In one possible implementation, the frequency domain resource corresponding to the Kth time unit among N time units is determined based on the first frequency, and the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position or the highest frequency domain resource among the M frequency domain resources.

[0336] That is to say, the frequency domain resource corresponding to the Kth time unit can be determined through the first frequency, that is, the frequency domain resource with the highest frequency domain position among the M frequency domain resources, or the frequency domain resource with the lowest frequency domain position. In this way, the frequency hopping resource for sending or receiving the reference signal can be uniquely determined, thereby avoiding interference.

[0337] For example, in Figure 9, if the frequency domain resource corresponding to the Kth time unit is determined to be the frequency domain resource #3 corresponding to the third time unit (assuming that the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position), then the frequency hopping pattern can be uniquely determined to be the second frequency hopping pattern 2. For frequency hopping pattern 1, when the frequency domain resource corresponding to the Kth time unit is determined, the frequency domain starting position of the frequency domain resource corresponding to the first time unit can be determined, that is, the frequency domain starting position of the first hop is the first frequency, and thus the frequency hopping resource in frequency hopping pattern 1 can be uniquely determined. The following describes how to determine the frequency domain resource corresponding to the Kth time unit based on Cases 1 and 2 in the aforementioned "Frequency Hopping Pattern 2," respectively.

[0338] Case 1:

[0339] In one possible implementation, the frequency domain resource corresponding to the Kth time unit is determined based on the first frequency, including: the frequency domain resource corresponding to the Kth time unit is determined based on a third frequency, and the frequency domain resource corresponding to the third frequency is the frequency domain resource with the highest frequency domain position among the M frequency domain resources. The third frequency is determined based on the total bandwidth occupied by the first frequency and the M frequency domain resources.

[0340] It can be understood that the total bandwidth occupied by the M frequency domain resources can be the combined bandwidth in the aforementioned "positioning scenario under bandwidth limitation". For details, please refer to the relevant description in the "positioning scenario under bandwidth limitation" and will not be repeated here.

[0341] It should be understood that the third frequency may refer to the highest frequency domain position relative to the first frequency. For example, the third frequency is the sum of the first frequency and the total bandwidth occupied by the M frequency domain resources. In other words, the third frequency can be determined by formula (1). c-h =F l +B Formula (1)

[0342] In formula (1), F c-h is the third frequency, F l is the first frequency, and B is the total bandwidth occupied by the M frequency domain resources, that is, the combined bandwidth. The unit in formula (1) can be Hz, KHz, MHz, or RB.

[0343] Optionally, the total bandwidth occupied by the M frequency domain resources is determined based on the following parameters: the bandwidth of the frequency domain resources corresponding to the i-th time unit in the N time units, the number of frequency hopping times, and the frequency domain offset corresponding to two adjacent time units in the N time units. Among them, the number of frequency hopping times can be replaced by: the number or number of frequency hopping times within a reference signal frequency hopping pattern period. The frequency domain offset corresponding to two adjacent time units in the N time units can be replaced by: the overlap size between the frequency domain resources corresponding to the i-th time unit in the N time units and the frequency domain resources corresponding to the j-th time unit, or the bandwidth of the frequency domain overlap, 1≤i≠j≤N. For details, please refer to the parameters c and d in the aforementioned "frequency hopping configuration information", which will not be repeated here.

[0344] For example, B in the above formula (1) is the combined bandwidth, which can be the sum of the bandwidth of the frequency domain resources corresponding to n time units and the frequency domain offset corresponding to two adjacent time units in the n time units within a reference signal frequency hopping pattern period (including n time units), such as For example, the above formula (1) can be rewritten as formula (2).

[0345] In formula (2), F c-h is the third frequency, F l is the first frequency, b i is the bandwidth of the frequency domain resource corresponding to the i-th time unit in n time units, n is the frequency hopping times or number, f i,i-1 It is used to represent the frequency domain offset between the i-th time unit and the i-1-th time unit in n time units, that is, the frequency domain offset between two adjacent time units in N time units. For example, f i,i-1 It can refer to the offset between the frequency domain end position of the frequency domain resource corresponding to the i-th time unit and the frequency domain start position of the frequency domain resource corresponding to the i+1-th time unit. 1,0 =0, 1≤n≤N, n is an integer.

[0346] It can be understood that for the overlapping frequency hopping of scheme 1, if the bandwidth occupied by each frequency hopping is the same, the overlap size between two adjacent frequency domain resources is also the same, and then the bandwidth b (or the number of RBs) occupied by each frequency hopping and the overlap size p can be used to determine B=n·b-(n-1)p in formula (1). For the non-overlapping frequency hopping of scheme 2, f in the above formulas (1) and (2) is i,i-1 It can refer to the offset between the highest frequency domain position of the frequency domain resource corresponding to the i-th time unit and the frequency domain starting position of the frequency domain resource corresponding to the i+1-th time unit. i,i-1 It can be zero, that is, in solution 2, the multiple frequency domain resources used for frequency hopping can be continuous in the frequency domain, and there is no need to pass fi,i-1 Determine the combined bandwidth. In addition, if the bandwidth occupied by each frequency hop is the same, the combined bandwidth can be determined based on the number of frequency hops and the bandwidth b occupied by each frequency hop, that is, B=n·b.

[0347] It should be understood that when the first frequency and the third frequency are determined, combined with the fact that the frequency domain position of the frequency domain resources in situation 1 increases successively with the sequence of time units as a whole, the frequency domain resource with the lowest frequency domain position or the highest frequency domain resource among the M frequency domain resources can be determined based on the frequency domain resources corresponding to any one of the n time units within a frequency hopping pattern period (for example, the starting frequency domain position, the center frequency, or one or more of the highest frequency domain positions).

[0348] In one possible implementation, the frequency domain resources corresponding to the Kth time unit are determined based on the third frequency, including: the Kth time unit is determined based on the third frequency, and the frequency domain resources corresponding to the tth time unit among N time units, 1≤t≤N.

[0349] It is understood that the t-th time unit may be any time unit among N time units. In the case where N is greater than n and t is greater than n, the number of the n time units in which the t-th time unit is located within a frequency hopping pattern period can be determined by dividing t modulo n (e.g., t mod n).

[0350] That is to say, the first device can determine the K value in the Kth time unit based on the order of any one of the N time units in the n time units and its corresponding frequency domain resources, that is, determine the order of the time unit corresponding to the frequency domain resource with the highest frequency domain position in the M frequency domain resources in the n time units, and / or the order of the time unit corresponding to the frequency domain resource with the lowest frequency domain position in the M frequency domain resources in the n time units, so that the frequency hopping resource information for sending or receiving the reference signal (for example, including frequency domain resource information and time domain resource information) can be uniquely determined.

[0351] It should be understood that, considering resource utilization and resource scheduling flexibility, the frequency domain resource with the highest frequency domain position among the M frequency domain resources may have a different frequency domain position relationship with the third frequency. Different frequency domain position relationships can correspond to different frequency hopping patterns, that is, different frequency domain position relationships can correspond to different K values.

[0352] The specific implementation of determining the Kth time unit is further introduced below.

[0353] In a possible implementation, the Kth time unit is determined based on the third frequency and the frequency domain resource corresponding to the tth time unit in the N time units, including: the Kth time unit is determined based on the frequency domain position relationship between the frequency domain resource corresponding to the tth time unit and the third frequency. The frequency domain position relationship is the first frequency domain position relationship or the second frequency domain position relationship. The first frequency domain position relationship is: the frequency domain starting position of the frequency domain resource corresponding to the tth time unit is the same as the frequency domain starting position of the frequency domain resource corresponding to the tth time unit. t The frequency domain position corresponding to the sum is greater than the third frequency, and the relationship between the second frequency domain position is: the frequency domain starting position of the frequency domain resource corresponding to the t-th time unit is equal to b t The frequency domain position corresponding to the sum is equal to the third frequency, or the frequency domain position is less than the third frequency, and the difference between the two is less than b t+1 Or b. b t is the bandwidth of the frequency domain resource corresponding to the t-th time unit, b t+1 is the bandwidth of the frequency domain resource corresponding to the t+1th time unit, and b is the bandwidth occupied by each frequency hopping. It can be understood that if the bandwidth occupied by each frequency hopping is the same, b t Can be equal to b.

[0354] It should be understood that the frequency domain starting position of the frequency domain resource corresponding to the t-th time unit may be indicated by the network or determined based on other time units. For example, the frequency domain starting position of the frequency domain resource corresponding to the t-th time unit may be: based on the frequency domain resource corresponding to the tx-th time unit, and the aforementioned b i 、f i,i-1 , or determined by the aforementioned b and p, 1≤tx≤N. Wherein, x is an integer, for example, 1, 2, 3, -1, -2, -3, or other values.

[0355] That is to say, the first device can also determine the Kth time unit based on the frequency domain position relationship between the frequency domain resources corresponding to the tth time unit and the third frequency, and then different position relationships can correspond to different Kth time units and their corresponding frequency domain resources, thereby improving resource utilization or resource scheduling flexibility.

[0356] In a possible implementation, the first frequency domain position relationship may include: position relationship 1a or position relationship 1b. In position relationship 1a, the actual bandwidth of the frequency domain resource corresponding to the tth time unit is equal to that of the bth time unit. t In position relationship 1b, the actual bandwidth of the frequency domain resource corresponding to the tth time unit is less than b t , and the actual highest frequency domain position of the frequency domain resource corresponding to the tth time unit can be equal to the third frequency.

[0357] That is to say, for position relationship 1a, the frequency domain resource with the highest frequency domain position among the M frequency domain resources can have a highest frequency domain position greater than the third frequency, that is, the first device can continue to hop in the direction of the third frequency (that is, the direction of increasing frequency) when it is near the highest frequency (that is, the third frequency), and then the frequency domain starting position of the frequency domain resource corresponding to the next hop (that is, the next time unit) can be greater than the first frequency. For position relationship 1b, the frequency domain resource with the highest frequency domain position among the M frequency domain resources has an actual highest frequency domain position equal to the third frequency, that is, the first device can continue to hop in the direction of the third frequency when it is near the highest frequency, but the actual hopping bandwidth is less than the configured bandwidth. The configured bandwidth can be, for example, the above b. t Or the bandwidth b occupied by each frequency hop, and thus the frequency domain starting position of the frequency domain resource corresponding to the next hop can be equal to the first frequency.

[0358] It can be understood that for the second frequency domain position relationship, the frequency domain resource with the highest frequency domain position among the M frequency domain resources has a highest frequency domain position less than or equal to the third frequency, that is, the first device hops to near the third frequency, and the next hop starts from the lowest frequency (that is, the first frequency).

[0359] It should be understood that the above-mentioned frequency domain position relationship may be agreed upon by a protocol; or, the above-mentioned frequency domain position relationship may be negotiated in advance between the first device and the network; or, the above-mentioned frequency domain position relationship may be indicated or configured by the network, and the embodiments of this application do not specifically limit this. It should be understood that the names such as the first frequency domain position, position relationship 1a, position relationship 1b, and second frequency domain position relationship are merely examples and may be other names, and the embodiments of this application do not specifically limit this.

[0360] The frequency-domain position relationship is described below by taking the frequency-hopping pattern of overlapping frequency hopping in Solution 1 as an example.

[0361] For example, the position relationship 1a can be seen in (a) of FIG. 14 , the position relationship 1b can be seen in (b) of FIG. 14 , and the second frequency domain position relationship can be seen in (c) of FIG. 14 , which are described below respectively.

[0362] For positional relationship 1a:

[0363] The actual bandwidth of the frequency domain resource corresponding to the t-th time unit is equal to b t The same, and then the frequency domain starting position of the frequency domain resource corresponding to the t-th time unit is the same as b tThe frequency domain position corresponding to the sum, that is, the highest frequency domain position of the frequency domain resource corresponding to the t-th time unit is the actual highest frequency domain position, and the actual highest frequency domain position can be greater than the third frequency. In other words, for (a) in Figure 14, the highest frequency domain position of the frequency domain resource #2 corresponding to the second time unit can be greater than the third frequency, that is, the highest frequency domain position of the frequency domain resource with the highest frequency domain position among the M frequency domain resources can be greater than the third frequency. In this way, the frequency domain resource corresponding to the t-th time unit is: the frequency domain resource with the highest frequency domain position among the M frequency domain resources (that is, the frequency domain resource corresponding to the time unit before the surround), and the frequency domain resource corresponding to the t+1-th time unit is: the frequency domain resource with the lowest frequency domain position among the M frequency domain resources (that is, the frequency domain resource corresponding to the surround time unit).

[0364] It should be understood that since the third frequency is determined based on the first frequency, and therefore when the combined bandwidth remains unchanged, the frequency domain starting position of the lowest frequency domain resource among the M frequency domain resources can be greater than the first frequency. Specifically, refer to the frequency domain resource #3 corresponding to the third time unit in (a) in Figure 14, whose frequency domain starting position is greater than the first frequency.

[0365] It can be understood that, as shown in (a) in Figure 14, the frequency domain resource #1 corresponding to the first time unit and the frequency domain resource #2 corresponding to the second time unit can be jointly processed with other frequency domain resources (for example, the frequency domain resource #3 corresponding to the third time unit, the frequency domain resource #4 corresponding to the fourth time unit, and the frequency domain resource #5 corresponding to the fifth time unit) to improve resource utilization.

[0366] For positional relation 1b:

[0367] As mentioned above, the actual bandwidth of the frequency domain resource corresponding to the t-th time unit is less than b t , and thus the highest frequency domain position of the frequency domain resource corresponding to the t-th time unit is not the actual highest frequency domain position. The actual highest frequency domain position is equal to the third frequency. For details, see frequency domain resource #2 corresponding to the second time unit in (b) of Figure 14. In other words, the frequency domain resource corresponding to the t-th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the t+1-th time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources.

[0368] It can be understood that since the actual highest frequency domain position is equal to the third frequency, the frequency domain starting position of the lowest frequency domain resource in the frequency domain position among the M frequency domain resources can be equal to the first frequency. Specifically, see frequency domain resource #3 corresponding to the third time unit in (b) of Figure 14, whose frequency domain starting position is equal to the first frequency. In other words, it is assumed that the lowest frequency occupied by the first device for sending the reference signal coincides with the first frequency, and no additional indication is required, which can reduce signaling overhead.

[0369] It should be understood that, as shown in (b) of FIG14 , frequency domain resource #1 corresponding to the first time unit and frequency domain resource #2 corresponding to the second time unit may not be jointly processed with other frequency domain resources (e.g., frequency domain resource #3 corresponding to the third time unit, frequency domain resource #4 corresponding to the fourth time unit, and frequency domain resource #5 corresponding to the fifth time unit). This improves the flexibility of network scheduling resources.

[0370] For the second frequency domain position relationship:

[0371] The difference between the second frequency domain position relationship and the above position relationship is that the highest frequency domain position of the frequency domain resource corresponding to the t-th time unit is less than or equal to the third frequency, and the highest frequency domain position of the frequency domain resource corresponding to the t-th time unit should be close to the third frequency. t When the frequency domain position corresponding to the sum is greater than the third frequency, the frequency domain resource corresponding to the t-1th time unit is: the frequency domain resource with the highest frequency domain position among the M frequency domain resources (for the case where t-1 is not equal to 1, that is, the t-1th time unit is not the first time unit), or the frequency domain resource corresponding to the t-1th time unit is: the frequency domain resource closest to the third frequency except the frequency domain resource with the highest frequency domain position among the M frequency domain resources (that is, the t-1th time unit is the first time unit). In other words, the t-1th time unit is the time unit before the wraparound in case 1. The frequency domain resource corresponding to the tth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, and the actual frequency domain starting position of the frequency domain resource corresponding to the tth time unit is the first frequency, that is, the tth time unit is the wraparound time unit in case 1.

[0372] For example, in (c) of Figure 14, the tth time unit is the second time unit, that is, the wraparound time unit, and the frequency domain starting position of frequency domain resource #2 corresponding to the second time unit is the first frequency. The t-1th time unit is the first time unit, that is, the time unit before wraparound, and frequency domain resource #1 corresponding to the first time unit is the frequency domain resource closest to the third frequency, except for frequency domain resource #6 corresponding to the sixth time unit.

[0373] It is understood that, as shown in (c) of FIG14 , frequency domain resource #1 corresponding to the first time unit may not be jointly processed with other frequency domain resources (e.g., frequency domain resource #2 corresponding to the second time unit to frequency domain resource #5 corresponding to the fifth time unit). This improves the flexibility of network scheduling resources.

[0374] It should be understood that, in combination with the above description, the following contents can be determined for the frequency domain resources corresponding to the Kth time unit:

[0375] 1. The frequency domain starting position of the frequency domain resource corresponding to the tth time unit is the same as b t When the frequency domain position corresponding to the sum of the two is greater than the third frequency, for the first frequency domain position relationship, the frequency domain resource corresponding to the t-th time unit is: the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the t+1-th time unit is: the frequency domain resource with the lowest frequency domain position among the M frequency domain resources;

[0376] Among them, for position relationship 1a, the highest frequency domain position of the frequency domain resource with the highest frequency domain position among the M frequency domain resources may be greater than the third frequency, and the third frequency is within the frequency range occupied by the frequency domain resource with the highest frequency domain position; the frequency domain starting position of the frequency domain resource with the lowest frequency domain position among the M frequency domain resources may be greater than the first frequency;

[0377] For position relationship 1b, the highest frequency domain position of the frequency domain resource with the highest frequency domain position among the M frequency domain resources can be equal to the third frequency, and the frequency domain starting position of the frequency domain resource with the lowest frequency domain position among the M frequency domain resources can be equal to the first frequency.

[0378] 2. For the second frequency domain position relationship, the frequency domain resource corresponding to the t-th time unit is: the frequency domain resource with the lowest frequency domain position among the M frequency domain resources. Specifically, if the t-1th time unit is not the first unit, the frequency domain resource corresponding to the t-1th time unit is: the frequency domain resource with the highest frequency domain position among the M frequency domain resources. If the t-1th time unit is the first time unit, the frequency domain resource corresponding to the t-1th time unit is: the frequency domain resource closest to the third frequency, excluding the frequency domain resource with the highest frequency domain position among the M frequency domain resources.

[0379] Exemplarily, based on the frequency domain position relationship between the frequency domain resource corresponding to the t-th time unit and the third frequency, it can be determined whether the frequency domain resource corresponding to the t-th time unit is the frequency domain resource corresponding to the K-th time unit. If it is determined that the frequency domain resource corresponding to the t-th time unit is not the frequency domain resource corresponding to the K-th time unit, the first device can be based on the aforementioned b i and f i,i-1, or the aforementioned b, or the aforementioned b and p, based on the frequency domain resources corresponding to the t-th time unit, determine the frequency domain resources corresponding to the t+1-th, t+2-th, t+x-th time units, or the frequency domain resources corresponding to the t-1-th, t-2-th, tx-th time units, and according to the above-mentioned positional relationship, determine whether the frequency domain resources corresponding to the t+x-th or tx-th time unit are the frequency domain resources corresponding to the K-th time unit.

[0380] The following is divided into Case 1a and Case 1b for explanation.

[0381] For case 1a:

[0382] In one possible implementation, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K+1th time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources; the Kth time unit is determined based on the frequency domain position relationship between the frequency domain resource corresponding to the tth time unit and the third frequency, including: the Kth time unit is determined based on the frequency domain position relationship and the frequency domain resource corresponding to the 1st time unit.

[0383] For the second frequency domain position relationship, the time unit that is the Kth time unit can be determined by formula (3) or (4).

[0384] In formulas (3) and (4), t represents the tth time unit in n time units, f1 is the frequency domain starting position of the frequency domain resource corresponding to the first time unit, and F c-h is the third frequency, f i,i-1 For details, please refer to the relevant description in formula (2) and will not be repeated here. It can be understood that for formula (3), the frequency domain resources corresponding to the first time unit are incremented until the highest frequency domain position of the frequency domain resources corresponding to the tth time unit is closest to F c-h , that is, it can be determined that the t-th time unit is the K-th time unit, that is, the time unit before the wraparound, and so the t+1-th time unit is the K+1-th time unit, that is, the wraparound time unit.

[0385] For formula (4), the frequency domain resources corresponding to the first time unit are increased until the highest frequency domain position of the frequency domain resources corresponding to the tth time unit begins to exceed F c-h , it can be determined that the frequency domain position of the frequency domain resource corresponding to the t-th time unit exceeds the frequency domain position of the frequency domain resource corresponding to the K-th time unit, that is, the t-th time unit is the K+1-th time unit, that is, the surrounding time unit, and the t-1-th time unit is the K-th time unit, that is, the time unit before the surrounding.

[0386] It can be understood that the above formulas (3) and (4) are for n time units within a frequency hopping pattern period, that is, N is equal to n. If N is greater than n, the above formula (3) can be rewritten as formula (5), and formula (4) can be rewritten as formula (6).

[0387] It should be understood that for the first frequency domain position correspondence, the time unit that is the Kth time unit can be determined by formula (7).

[0388] The meaning of each parameter in formula (7) can be specifically referred to the above formula (3) and formula (4), which will not be repeated here.

[0389] It can be understood that for formula (7), the frequency domain resources corresponding to the first time unit are incremented until the highest frequency domain position of the frequency domain resources corresponding to the tth time unit is closest to F c-h , and greater than F c-h , that is, it can be determined that the t-th time unit is the K-th time unit, that is, the time unit before the wraparound, and the t+1-th time unit is the K+1-th time unit, that is, the wraparound time unit.

[0390] It can be understood that for n time units within a frequency hopping pattern period, N is equal to n. If N is greater than n, the above formula (7) can be rewritten as formula (8).

[0391] For case 1b:

[0392] Case 1b is similar to case 1a, except that the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K-1th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, that is, the Kth time unit is the surround time unit, and the K-1th time unit is the time unit before the surround.

[0393] In other words, in formulas (3) to (8) in case 1a above, the formula corresponding to K+1 is K in case 1b. For example, in formula (4) is K in case 1b, that is For example, formula (7) is K-1 in case 1b, that is

[0394] It can be understood that in the above formulas (3) to (8), for the overlapping frequency hopping of scheme 1, when the bandwidth occupied by each frequency hopping is the same, the overlap size between two adjacent frequency domain resources is also the same. Then, the bandwidth b (or the number of RBs) occupied by each frequency hopping and the overlap size p can be used to determine

[0395] It can also be understood that for the non-overlapping frequency hopping scheme 2, f i,i-1 It may refer to the offset between the frequency domain end position of the frequency domain resource corresponding to the i-th time unit and the frequency domain start position of the frequency domain resource corresponding to the i+1-th time unit. In the case where the multiple frequency domain resources used for frequency hopping can be continuous in the frequency domain, f i,i-1 = 0. In addition, when the bandwidth occupied by each frequency hopping is the same, b is the bandwidth occupied by each frequency hop.

[0396] It should be understood that the above formulas (3) to (8) are only examples. The Kth time unit can also be determined based on the frequency domain resources corresponding to other time units. The specific method is similar to the above formulas (3) to (8) and will not be repeated here.

[0397] It can be understood that in case 1, for the first frequency domain position relationship and the second frequency domain position relationship, there may also be case 1c, that is, the frequency domain resource corresponding to the Kth time unit is not the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K+1th time unit is the frequency domain resource with the lowest position among the M frequency domain resources, or, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, but the frequency domain resource corresponding to the K-1th time unit is not the frequency domain resource with the highest frequency domain position among the M frequency domain resources, such as the cases shown in (a) and (c) in Figure 14. The above formulas (3) to (8) are also applicable to case 1c.

[0398] The following describes a specific implementation of determining the correspondence between M frequency domain resources and N time units based on the Kth time unit and its corresponding frequency domain resource.

[0399] It should be understood that, as described above, the correspondence between the M frequency domain resources and the N time units may include: the frequency domain resources corresponding to the m-th time unit; the frequency domain resources corresponding to the m-th time unit are determined based on the frequency domain resources corresponding to the K-th time unit. Among them, the frequency domain resources corresponding to the m-th time unit are frequency domain resources among the M frequency domain resources. The M frequency domain resources are determined based on the following multiple parameters: the location information of the frequency domain resources corresponding to the t-th time unit among the N time units, the bandwidth of the frequency domain resources corresponding to the m-th time unit among the N time units, the number of frequency hopping times, or the frequency domain offset corresponding to two adjacent time units among the N time units, 1≤t≠m≤N.

[0400] The location information of the frequency domain resource corresponding to the t-th time unit in the N time units may refer to any time unit in the N time units except the m-th time unit. The location information may include the frequency domain position of the frequency domain resource. For details, please refer to the relevant description in the aforementioned "Frequency Hopping Pattern 1" and will not be repeated here.

[0401] It is understood that the above parameters can be specifically referred to in the description of the parameters in the aforementioned "parameters a to e" and the aforementioned formulas (1) to (2), which will not be repeated here. In addition, as described above with respect to question 1, the specific value of M in the M frequency domain resources can be specifically referred to in the description of the aforementioned "relationship between M and N", which will not be repeated here.

[0402] It should be understood that the above parameters can be replaced by: the location information of the frequency domain resource corresponding to the first time unit in N time units, the bandwidth of the frequency domain resource corresponding to the i-th time unit, the overlap size between the frequency domain resource corresponding to the i-th time unit and the frequency domain resource corresponding to the j-th time unit, or the number of frequency hopping. Among them, the i-th time unit and the j-th time unit are time units in N time units, 1≤i≠j≤N. It is understood that the above i or j can be equal to m.

[0403] It can be understood that, as described above regarding the correspondence between M frequency domain resources and N time units, by determining the frequency domain resources corresponding to each time unit in the N time units (for example, the frequency domain starting position, the center frequency, or the frequency domain ending position, etc.), the correspondence between the M frequency domain resources and the N time units can be determined.

[0404] The following description is made by taking as an example the determination of the frequency domain starting position of the frequency domain resource corresponding to each of the N time units.

[0405] Exemplarily, the frequency domain starting position of the frequency domain resource corresponding to the mth time unit is determined based on the following multiple parameters: the frequency domain resource corresponding to the Kth time unit, the frequency domain starting position of the frequency domain resource corresponding to the tth (for example, t is equal to 1) time unit, the frequency domain offset corresponding to the i-th time unit and the i-1th time unit in N time units, and the bandwidth of the frequency domain resource corresponding to the m-th time unit.

[0406] Since the frequency hopping patterns corresponding to the first frequency domain position relationship and the second frequency domain position relationship are different, the first frequency domain position relationship and the second frequency domain position relationship are introduced separately below.

[0407] For the first frequency domain position relationship:

[0408] 1. For positional relationship 1a:

[0409] In position relationship 1a, since the frequency domain starting position of the frequency domain resource with the highest frequency domain position among the M frequency domain resources can be greater than the third frequency (as shown in (a) in Figure 14), the frequency domain starting position of the frequency domain resource with the highest frequency domain position among the M frequency domain resources can be greater than the first frequency.

[0410] Among them, in case 1a, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K+1th time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources. In other words, the frequency domain end position (i.e., the highest frequency domain position) of the frequency domain resource corresponding to the Kth time unit is F K The frequency domain starting position of the frequency domain resource corresponding to the K+1th time unit is greater than the first frequency, that is, the frequency domain starting position is F K The difference between the combined bandwidth and the combined bandwidth. The combined bandwidth can be specifically referred to in formula (1) B. Please refer to formula (2) and do not elaborate on it here.

[0411] Exemplarily, the frequency domain starting position of the frequency domain resource corresponding to the mth time unit can be determined according to formula (9) or formula (10).

[0412] In formula (9), f m is the frequency domain starting position of the frequency domain resource corresponding to the mth time unit, n is the frequency hopping number or number in formula (2) (i.e., the frequency hopping number or number within a frequency hopping pattern period), f1 is the frequency domain starting position of the frequency domain resource corresponding to the first time unit in N time units, F K is the frequency domain end position of the frequency domain resource corresponding to the Kth time unit, b i is the bandwidth of the frequency domain resource corresponding to the i-th time unit in n time units, fi,i-1 is the offset value in the frequency domain of the corresponding resource between the \(i\)-th time unit and the \((i - 1)\)-th time unit among \(N\) time units in Formula (2). Here, \(f\) 1,0 = 0, \(f\) K+1,K = 0. It can be understood that \(f\) K+1,K = 0 can indicate that the frequency domain offset between the \(K\)-th time unit and the \((K + 1)\)-th time unit is zero, or this situation is unavailable, meaningless, etc.

[0413] It can also be understood that \(f\) K+1,K = 0 can also indicate that the frequency domain offset between the \(m1\)-th time unit and the \((m1 + 1)\)-th time unit is zero, or this situation is unavailable, meaningless, etc. Where \((m1\ mod\ N)=K\) and \(((m1 + 1)\ mod\ N)=K + 1\).

[0414] It can be understood that for Formula (9), when the remainder of \(m\) divided by \(N\) is less than \(K + 1\), that is, \((m\ mod\ N)<K + 1\), \(f\) m can be incremented based on \(f1\) until the frequency domain end position (i.e., the highest frequency domain position) of the corresponding frequency domain resource of \(f\) m is equal to \(F\) K , that is, the frequency domain start position of the frequency domain resource corresponding to the \(K\)-th time unit That is, the frequency domain end position \(F\) of the frequency domain resource corresponding to the \(K\)-th time unit K is \(f\) k plus the bandwidth \(b\) of the frequency domain resource corresponding to the \(K\)-th time unit K , \(F\) K = \(f\) K + \(b\) K . When \((m\ mod\ N)=K + 1\), \(f\) m is equal to the frequency domain start position \(f\) K+1 of the frequency domain resource of the \((K + 1)\)-th time unit, and \(f\) m can be greater than the first frequency. For example, \(f\) K+1 can be the difference between \(F\) K and the combined bandwidth, that is, \(f\) K+1 = \(F\) K - \(B\). It can be understood that according to the relevant description of Formula (2) above, Thus It can also be understood that in Formula (9), can be replaced by the combined bandwidth \(B\), that is, the total bandwidth occupied by \(M\) frequency domain resources. For specific details, please refer to the relevant description of Formula (1), which will not be elaborated here.

[0415] It can be understood that the meaning of each parameter in formula (10) can be found in formula (9) and will not be repeated here.

[0416] In case 1b, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K-1th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources. Therefore, formula (9) can be rewritten as formula (11).

[0417] Among them, F K-1 is the highest frequency domain position of the frequency domain resource corresponding to the K-1th time unit, f K,K-1 = 0. The meaning of each parameter in formula (11) can be found in formula (9) and will not be repeated here.

[0418] It can be understood that in case 1b, formula (10) can be rewritten as formula (12).

[0419] The meaning of each parameter in formula (12) can be found in formula (10) and will not be repeated here.

[0420] 2. For position relationship 1b:

[0421] As described above about position relationship 1b, the difference from position relationship 1a is that the frequency domain resource with the highest frequency domain position among the M frequency domain resources actually has the third frequency as its highest frequency domain position, and the frequency domain resource with the lowest frequency domain position among the M frequency domain resources has the first frequency as its starting frequency domain position.

[0422] In case 1a, the frequency domain end position (i.e., the highest frequency domain position) of the frequency domain resource corresponding to the Kth time unit is F K In fact, it is equal to the third frequency F c-h , the frequency domain starting position of the frequency domain resource corresponding to the K+1th time unit can be equal to the first frequency F l .

[0423] Exemplarily, the frequency domain starting position of the frequency domain resource corresponding to the mth time unit can be determined according to formula (13) or formula (14).

[0424] Formula (13) and formula (14), F l is the first frequency, and the meanings of the other parameters can be found in formula (9) and will not be repeated here. It can be understood that according to the relevant description of the position relationship 1b, the actual bandwidth of the frequency domain resource corresponding to the Kth time unit is smaller than the bandwidth b configured (or indicated) by the network. K, that is, the frequency domain starting position f of the frequency domain resource corresponding to the Kth time unit K with b K The sum is greater than the third frequency F c-h , Similarly, in case 1b, the frequency domain resource corresponding to the K-1th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources. Therefore, formula (13) can be rewritten as formula (15), and formula (14) can be rewritten as formula (16).

[0425] In formula (15) and formula (16), F l is the first frequency. For the meanings of other parameters, please refer to formula (9) and will not be repeated here.

[0426] 3. For the second frequency domain position relationship:

[0427] As described above regarding the second frequency domain position relationship, the difference from position relationship 1b is that the frequency domain resource corresponding to the previous time unit of the frequency domain resource with the lowest frequency domain position among the M frequency domain resources has a frequency domain end position that is less than or equal to the third frequency. When the frequency domain end position is equal to the third frequency, the above situation 1a and situation 1b can be applied; when the frequency domain end position is less than the third frequency, the above situation 1c can be applied. In addition, the formula for determining the Kth time unit is also different between position relationship 1b and the second frequency domain position relationship. For details, please refer to the relevant description of the above formula (3), which will not be repeated here. It can be understood that for the second frequency domain position relationship, since the frequency domain starting position of the frequency domain resource with the lowest frequency domain position among the M frequency domain resources is also the first frequency, the frequency domain starting position of the frequency domain resource corresponding to the mth time unit in the second frequency domain position relationship can be determined by reusing the above formulas (13) to (16), which will not be repeated here.

[0428] For case 2:

[0429] It can be understood that in case 2, since the first frequency is determined, the frequency domain resource with the lowest frequency domain position among the M frequency domain resources can be determined based on the first frequency. In this way, the third frequency determined based on the first frequency can be used to determine the frequency domain resource corresponding to the Kth time unit, thereby determining the correspondence between the M frequency domain resources and the N time units.

[0430] It should be understood that the frequency domain position relationship is similar to that in Case 1, with the difference that the frequency domain position relationship between the frequency domain resources corresponding to the t-th time unit and the first frequency is different from the above-mentioned first frequency domain position relationship and the second frequency domain position relationship. The specific implementation of determining the K-th time unit is introduced below.

[0431] In one possible implementation, the frequency domain resource corresponding to the Kth time unit is determined based on the first frequency, including: the Kth time unit is determined based on the frequency domain position relationship between the frequency domain resource corresponding to the tth time unit and the first frequency. The frequency position relationship is a third frequency domain position relationship or a fourth frequency domain position relationship. The third frequency domain position relationship is: the frequency domain starting position of the frequency domain resource corresponding to the tth time unit is the same as the frequency domain starting position of the frequency domain resource corresponding to the tth time unit. t The frequency domain position corresponding to the sum is equal to the first frequency, or the frequency domain position is greater than the first frequency, and the difference between the two is less than b t+1 Or b. The fourth frequency domain position relationship is: the frequency domain starting position of the frequency domain resource corresponding to the tth time unit is the same as b t The frequency domain position corresponding to the sum is less than the first frequency. b t is the bandwidth of the frequency domain resource corresponding to the t-th time unit, b t+1 is the bandwidth of the frequency domain resource corresponding to the t+1th time unit, and b is the bandwidth occupied by each frequency hopping. It can be understood that if the bandwidth occupied by each frequency hopping is the same, b t Can be equal to b.

[0432] That is to say, the first device can also determine the Kth time unit based on the frequency domain position relationship between the frequency domain resources corresponding to the tth time unit and the first frequency, and then different position relationships can correspond to different Kth time units and their corresponding frequency domain resources, thereby improving resource utilization or resource scheduling flexibility.

[0433] In one possible implementation, the third frequency domain position relationship may include: position relationship 3a or position relationship 3b. In position relationship 3a, the frequency domain resource corresponding to the t-th time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, and the frequency domain end position (i.e., the lowest frequency domain position) of the frequency domain resource is greater than or equal to the first frequency, and the frequency domain resource corresponding to the t+1-th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and its frequency domain starting position is determined based on the frequency domain end position of the frequency domain resource corresponding to the t-th time unit and the combined bandwidth B. In this way, the frequency domain starting position of the frequency domain resource corresponding to the t+1-th time unit may be greater than or equal to the third frequency. In position relationship 3b, the difference from position relationship 3a is that the frequency domain resource corresponding to the t+1-th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the t-th time unit may not be the frequency domain resource with the lowest frequency domain position among the M frequency domain resources. The frequency domain starting position of the frequency domain resource corresponding to the t+1th time unit may be equal to the third frequency.

[0434] That is, for position relationship 3a, the frequency domain resource with the lowest frequency domain position among the M frequency domain resources can have a lowest frequency domain position greater than the first frequency. That is, when the first device hops to a location near the lowest frequency (i.e., the first frequency), the frequency domain starting position of the next hop is greater than the third frequency. For position relationship 3b, when the first device hops to a location near the first frequency, the next hop starts from the third frequency.

[0435] It can be understood that for the fourth frequency domain position relationship, the actual bandwidth of the frequency domain resource corresponding to the t-th time unit is less than b t , and the actual frequency domain end position (i.e., the lowest frequency domain position) of the frequency domain resource corresponding to the t-th time unit can be equal to the first frequency, and the frequency domain start position of the frequency domain resource corresponding to the t+1-th time unit can be equal to the third frequency. In other words, the first device can continue to hop toward the first frequency after hopping to the vicinity of the lowest frequency, but the actual hopping bandwidth is smaller than the configured bandwidth, which can be, for example, the above-mentioned b t Or the bandwidth b occupied by each frequency hop.

[0436] It should be understood that the above-mentioned frequency domain position relationship may be agreed upon by the protocol; or, the above-mentioned frequency domain position relationship may be negotiated in advance between the first device and the network; or, the above-mentioned frequency domain position relationship may be indicated or configured by the network, and the embodiments of the present application do not make specific limitations on this.

[0437] For example, the position relationship 3a can be specifically shown in (a) of FIG15 , the position relationship 3b can be specifically shown in (b) of FIG15 , and the fourth frequency domain position relationship can be specifically shown in (c) of FIG15 , which are described below respectively.

[0438] For positional relationship 3a:

[0439] In (a) of Figure 15 , the t-th time unit is the first time unit, and the frequency domain resource #1 corresponding to the first time unit and the frequency domain resource #6 corresponding to the sixth time unit can be the frequency domain resource with the lowest frequency domain position among the six frequency domain resources. The lowest frequency domain position of the frequency domain resource #1 corresponding to the first time unit is greater than the first frequency. The t+1-th time unit is the second time unit, and the frequency domain resource #2 corresponding to the second time unit is the frequency domain resource with the highest frequency domain position among the six frequency domain resources, and the frequency domain starting position (i.e., the highest frequency domain position) of the frequency domain resource #2 corresponding to the second time unit is greater than the third frequency.

[0440] It can be understood that, as shown in (a) in Figure 15, the frequency domain resource #1 corresponding to the first time unit and other frequency domain resources (for example, the frequency domain resource #2 corresponding to the second time unit to the frequency domain resource #6 corresponding to the sixth time unit) can be processed jointly to improve resource utilization.

[0441] For position relation 3b:

[0442] In FIG15( b ), the t-th time unit is the first time unit, and the frequency domain resource #1 corresponding to the first time unit is not the frequency domain resource with the lowest frequency domain position among the six frequency domain resources, while the frequency domain resource #6 corresponding to the sixth time unit is the frequency domain resource with the lowest frequency domain position among the six frequency domain resources. The t+1-th time unit is the second time unit, and the frequency domain resource #2 corresponding to the second time unit is the frequency domain resource with the highest frequency domain position among the six frequency domain resources, and the frequency domain starting position of the frequency domain resource #2 corresponding to the second time unit is equal to the third frequency.

[0443] It can be understood that, as shown in (b) in Figure 15, the frequency domain resource #1 corresponding to the first time unit may not be jointly processed with other frequency domain resources (for example, the frequency domain resource #2 corresponding to the second time unit, the frequency domain resource #3 corresponding to the third time unit, the frequency domain resource #4 corresponding to the fourth time unit, the frequency domain resource #5 corresponding to the fifth time unit, and the frequency domain resource #6 corresponding to the sixth time unit), thereby improving the flexibility of network scheduling resources.

[0444] For the fourth frequency domain position relationship:

[0445] In Figure 15(c), the tth time unit is the second time unit. The actual bandwidth of frequency domain resource #2 corresponding to the second time unit is smaller than its configured bandwidth, and the frequency domain end position (i.e., the lowest frequency domain position) of frequency domain resource #2 is equal to the first frequency. In other words, the lowest frequency occupied by the reference signal sent by the transmitter coincides with the first frequency, which can be used as a default selection for the transmitter and receiver, eliminating the need for additional instructions and reducing signaling overhead.

[0446] It should be understood that in FIG15(c), frequency domain resources #1 to #2 do not need to be jointly processed with other frequency domain resources (e.g., frequency domain resource #3 corresponding to the third time unit, frequency domain resource #4 corresponding to the fourth time unit, frequency domain resource #5 corresponding to the fifth time unit, frequency domain resource #6 corresponding to the sixth time unit, and frequency domain resource #7 corresponding to the seventh time unit). This improves the flexibility of network scheduling resources.

[0447] Exemplarily, based on the third frequency domain position relationship or the fourth frequency domain position relationship, it can be determined whether the frequency domain resource corresponding to the t-th time unit is the frequency domain resource corresponding to the K-th time unit. If it is determined that the frequency domain resource corresponding to the t-th time unit is not the frequency domain resource corresponding to the K-th time unit, the first device can be based on the above b i and f i,i-1 , or the aforementioned b, or the aforementioned b and p, based on the frequency domain resources corresponding to the t-th time unit, determine the frequency domain resources corresponding to the t+1-th, t+2-th, t+x-th time units, or the frequency domain resources corresponding to the t-1-th, t-2-th, tx-th time units, and according to the above-mentioned positional relationship, determine whether the frequency domain resources corresponding to the t+x-th or tx-th time unit are the frequency domain resources corresponding to the K-th time unit.

[0448] The following is divided into Case 2a and Case 2b for explanation.

[0449] For case 2a:

[0450] In one possible implementation, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K-1th time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources; the Kth time unit is determined based on the frequency domain position relationship between the frequency domain resource corresponding to the tth time unit and the first frequency, including: the Kth time unit is determined based on the frequency domain position relationship and the frequency domain resource corresponding to the 1st time unit.

[0451] Among them, for the third frequency domain position correspondence, the time unit that is the Kth time unit can be determined by formula (17) or (18).

[0452] In formulas (17) and (18), F l is the first frequency. For the meanings of other parameters, please refer to the relevant descriptions of formula (3) and formula (4), which will not be repeated here.

[0453] It can be understood that the above formulas (17) and (18) are for n time units within a frequency hopping pattern period, that is, N is equal to n. If N is greater than n, the above formula (17) can be rewritten as formula (19), and formula (18) can be rewritten as formula (20).

[0454] It should be understood that for the fourth frequency domain position correspondence, the time unit that is the Kth time unit can be determined by formula (21).

[0455] The specific parameters in formula (21) can be found in the above formulas (17) and (18), and will not be repeated here. It can be understood that for formula (21), the frequency domain resources corresponding to the first time unit are decreased until the frequency domain end position (i.e., the lowest frequency domain position) of the frequency domain resources corresponding to the tth time unit is close to the first frequency F l , and is less than F l , that is, it can be determined that the t-th time unit is the K-1-th time unit, that is, the time unit before the wraparound, and the t+1-th time unit is the K-th time unit, that is, the wraparound time unit.

[0456] It can be understood that for n time units within a frequency hopping pattern period, N is equal to n. If N is greater than n, the above formula (21) can be rewritten as formula (22).

[0457] For case 2b:

[0458] Case 2b is similar to Case 2a, with the difference that the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K+1th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, that is, the Kth time unit is the time unit before wrapping, and the K+1th time unit is the wrapping time unit.

[0459] In other words, in formulas (17) to (22) in case 2a above, the formula corresponding to K is K+1 in case 2b. For example, in formula (18) is K+1 in case 2b, that is For example, in formula (21) is K+1 in case 2b, that is

[0460] It can be understood that in the above formulas (17) to (22), for the overlapping frequency hopping of scheme 1, when the bandwidth occupied by each frequency hopping is the same, the overlap size between two adjacent frequency domain resources is also the same. In this way, the bandwidth b (or the number of RBs) occupied by each frequency hopping and the overlap size p can be used to determine

[0461] It can also be understood that for the non-overlapping frequency hopping scheme 2, f i,i-1 It may refer to the offset between the frequency domain end position of the frequency domain resource corresponding to the i-th time unit and the frequency domain start position of the frequency domain resource corresponding to the i+1-th time unit. In the case where the multiple frequency domain resources used for frequency hopping can be continuous in the frequency domain, f i,i-1 = 0. It can also be understood that, for the case where the bandwidth occupied by each frequency hopping is the same, b is the bandwidth occupied by each frequency hop.

[0462] It should be understood that the above formulas (17) to (22) are only examples. The Kth time unit can also be determined based on the frequency domain resources corresponding to other time units. The specific method is similar to the above formulas (17) to (22) and will not be repeated here.

[0463] It can be understood that in case 2, for position relationship 3b, it corresponds to case 2c, that is, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K-1th time unit is not the frequency domain resource with the lowest frequency domain position among the M frequency domain resources; or, the frequency domain resource corresponding to the Kth time unit is not the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K+1th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, such as the case shown in (b) in Figure 15. The above formulas (17) to (22) are also applicable to case 2c.

[0464] The following describes a specific implementation of determining the correspondence between M frequency domain resources and N time units based on the Kth time unit and its corresponding frequency domain resource.

[0465] It can be understood that case 2 is similar to case 1 above, except that the frequency hopping patterns corresponding to the third frequency domain position relationship and the fourth frequency domain position relationship are different. The following takes the frequency domain starting position of the frequency domain resource corresponding to each time unit in N time units as an example to illustrate them respectively.

[0466] For the third frequency domain position relationship:

[0467] 1. For position relationship 3a:

[0468] In position relationship 3a, since the frequency domain end position of the frequency domain resource with the lowest frequency domain position among the M frequency domain resources may be greater than the first frequency (as shown in (a) in Figure 15), the frequency domain starting position of the frequency domain resource corresponding to each time unit in the N time units may be greater than the third frequency.

[0469] Among them, in case 2a, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K-1th time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources. In other words, the frequency domain end position (i.e., the lowest frequency domain position) of the frequency domain resource corresponding to the K-1th time unit is F K-1 Can be greater than or equal to the first frequency F l The frequency domain starting position of the frequency domain resource corresponding to the Kth time unit is greater than or equal to the third frequency F c-h , that is, the starting position of the frequency domain is F K-1 The combined bandwidth can be specifically referred to as B in formula (1). Please refer to formula (2) and do not elaborate on it here.

[0470] Exemplarily, the frequency domain starting position of the frequency domain resource corresponding to the mth time unit can be determined according to formula (23) or formula (24).

[0471] In formula (23), f m is the frequency domain starting position of the frequency domain resource corresponding to the mth time unit, n is the frequency hopping number or number in formula (2) (i.e., the frequency hopping number or number within a frequency hopping pattern period), f1 is the frequency domain starting position of the frequency domain resource corresponding to the first time unit in N time units, F K-1 is the frequency domain end position (i.e., the lowest frequency domain position) of the frequency domain resource corresponding to the K-1th time unit, b i is the bandwidth of the frequency domain resource corresponding to the i-th time unit in n time units, f i,i-1 is the frequency domain offset value of the resource corresponding to the i-th time unit and the i-1-th time unit in N time units in formula (2). 1,0 =0,f K,K-1 = 0. It is understandable that f K,K-1 =0 may indicate that the frequency domain offset between the frequency domain resources corresponding to the Kth time unit and the K-1th time unit is zero, or that this situation is unavailable, meaningless, etc.

[0472] It is understandable that f K,K-1= 0 can also indicate that the frequency domain offset between the frequency domain resources corresponding to the m1-th time unit and the (m1 - 1)-th time unit is zero, or this situation is unavailable, meaningless, etc. Among them, (m1 mod N) = K, ((m1 - 1) mod N) = K - 1.

[0473] It can be understood that for formula (23), when the remainder of m divided by N is less than K, that is, (m mod N) < K, f m can be decreased based on f1 until f m the frequency domain end position (the lowest frequency domain position) of the corresponding frequency domain resources is equal to F K-1 , that is, the frequency domain start position of the frequency domain resources corresponding to the (K - 1)-th time unit That is, the frequency domain end position F of the frequency domain resources corresponding to the (K - 1)-th time unit K-1 is f K-1 minus the bandwidth b of the frequency domain resources corresponding to the (K - 1)-th time unit K-1 , F K-1 = f k-1 - b K-1 , F K-1 ≥ F l . When (m mod N) = K, f m is equal to the frequency domain start position f of the frequency domain resources of the K-th time unit K , and f m can be greater than or equal to the third frequency F c-h . For example, f K can be the sum of F K-1 and the combined bandwidth, that is, f K = F K-1 + B. It can be understood that according to the relevant description of formula (2) above, thus it can also be understood that in formula (23), can be replaced by the combined bandwidth B, that is, the total bandwidth occupied by M frequency domain resources. For specific details, please refer to the relevant description of formula (1), which will not be elaborated here.

[0474] It can be understood that for the meanings of the parameters in formula (24), for specific details, please refer to formula (23), which will not be elaborated here.

[0475] In case 2b, the frequency domain resources corresponding to the K-th time unit are the frequency domain resources with the lowest frequency domain position among the M frequency domain resources, and the frequency domain resources corresponding to the (K + 1)-th time unit are the frequency domain resources with the highest frequency domain position among the M frequency domain resources. Thus, formula (23) can be rewritten as formula (25).

[0476] Among them, FK is the frequency domain end position of the frequency domain resource corresponding to the Kth time unit, f K+1,K = 0. The meaning of each parameter in formula (25) can be found in formula (23) and will not be repeated here.

[0477] It can be understood that formula (25) can be rewritten as formula (26)

[0478] The meaning of each parameter in formula (26) can be found in formula (25) and will not be repeated here.

[0479] 2. For position relationship 3b:

[0480] As described above about the position relationship 3b, the difference from the position relationship 3a is that the frequency domain resource with the highest frequency domain position among the M frequency domain resources has the highest frequency domain position (i.e., the frequency domain starting position) as the third frequency F c-h , and the frequency domain resource corresponding to the previous time unit of the frequency domain resource with the highest frequency domain position has a frequency domain end position greater than the first frequency F l As described above for case 2c, position relationship 3b applies to case 2c. The following example illustrates a case where the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, while the frequency domain resource corresponding to the K-1th time unit is not the frequency domain resource with the lowest frequency domain position among the M frequency domain resources.

[0481] Exemplarily, the frequency domain starting position of the frequency domain resource corresponding to the mth time unit can be determined according to formula (27) or formula (28).

[0482] Formula (27) and formula (28), F c-h is the third frequency, F c-h Can be replaced by The meanings of other parameters can be found in formula (23) and will not be elaborated here.

[0483] 3. Regarding the fourth frequency domain position relationship:

[0484] As described above regarding the fourth frequency domain position relationship, the difference from position relationship 3b is that the frequency domain resource corresponding to the previous time unit of the frequency domain resource with the highest frequency domain position among the M frequency domain resources is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, that is, the frequency domain starting position (that is, the highest frequency domain position) of the frequency domain resource with the highest frequency domain position among the M frequency domain resources is the third frequency F c-h , the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, its frequency domain end position (ie, the lowest frequency domain position) is actually the first frequency F l, that is, the actual frequency domain end position of the frequency domain resource corresponding to the time unit before wrapping is equal to the first frequency.

[0485] It can be understood that the fourth frequency domain position relationship is applicable to Case 2a and Case 2b. In Case 2a, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, that is, the frequency domain starting position of the frequency domain resource corresponding to the Kth time unit is the third frequency F c-h The frequency domain resource with the lowest frequency domain position in the frequency domain resource corresponding to the K-1th time unit, that is, the frequency domain end position of the frequency domain resource corresponding to the K-1th time unit is the first frequency F l .

[0486] Exemplarily, the frequency domain starting position of the frequency domain resource corresponding to the mth time unit can be determined according to formula (29) or formula (30).

[0487] The specific meanings of the parameters in formula (29) and formula (30) can be found in formula (23) and formula (24). Actually the third frequency F c-h .

[0488] Among them, in case 2b, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K+1th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, that is, the frequency domain end position of the frequency domain resource corresponding to the Kth time unit is the first frequency F l The frequency domain starting position of the frequency domain resource corresponding to the K+1th time unit is the third frequency F c-h .

[0489] Exemplarily, the frequency domain starting position of the frequency domain resource corresponding to the mth time unit can be determined according to formula (31) or formula (32).

[0490] The specific meanings of the parameters in formula (31) and formula (32) can be found in formula (23) and formula (24). Actually the third frequency F c-h .

[0491] B. Method 2:

[0492] The difference between Method 2 and Method 1 is that the second frequency is determined, and the upper limit of the M frequency domain resources can be determined based on the second frequency. In this way, the fourth frequency is determined based on the second frequency (the frequency domain resource corresponding to the fourth frequency is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources), and the correspondence between the M frequency domain resources and the N time units can be determined.

[0493] In one possible implementation, the frequency domain resource corresponding to the Kth time unit among N time units is determined based on the second frequency, and the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position or the highest frequency frequency among the M frequency domain resources.

[0494] That is to say, the frequency domain resource corresponding to the Kth time unit can be determined through the first frequency, that is, the frequency domain resource with the highest frequency domain position among the M frequency domain resources, or the frequency domain resource with the lowest frequency domain position. In this way, the frequency hopping resource for sending or receiving the reference signal can be uniquely determined, thereby avoiding interference.

[0495] Based on Case 1 and Case 2 in the aforementioned “Frequency Hopping Pattern 2”, the following describes how to determine the frequency domain resources corresponding to the Kth time unit.

[0496] In one possible implementation, the frequency domain resources corresponding to the Kth time unit are determined based on the second frequency, including: the frequency domain resources corresponding to the Kth time unit are determined based on the fourth frequency, and the frequency domain resources corresponding to the fourth frequency are the frequency domain resources with the lowest frequency domain position among the M frequency domain resources; wherein, the fourth frequency is determined based on the total bandwidth occupied by the second frequency and the M frequency domain resources.

[0497] It can be understood that the total bandwidth occupied by the M frequency domain resources can be the combined bandwidth in the aforementioned "positioning scenario under bandwidth limitation". For details, please refer to the relevant description in the "positioning scenario under bandwidth limitation" and will not be repeated here.

[0498] It should be understood that the fourth frequency may refer to the lowest frequency domain position relative to the second frequency. For example, the fourth frequency is the sum of the second frequency and the total bandwidth occupied by the M frequency domain resources. In other words, the fourth frequency can be determined by formula (33). c-l =F h -B Formula (33)

[0499] In formula (33), F c-l is the fourth frequency, F h is the second frequency, and B is the total bandwidth occupied by M frequency domain resources, that is, the combined bandwidth. The parameter B in formula (33) is similar to that in formula (1), for example

[0500] In one possible implementation, the frequency domain resources corresponding to the Kth time unit are determined based on the fourth frequency, including: the Kth time unit is determined based on the fourth frequency, and the frequency domain resources corresponding to the tth time unit among N time units, 1≤t≤N.

[0501] It is understood that the t-th time unit may be any time unit among N time units. In the case where N is greater than n and t is greater than n, the number of the n time units in which the t-th time unit is located within a frequency hopping pattern period can be determined by dividing t modulo n (e.g., t mod n).

[0502] That is to say, the first device can determine the K value in the Kth time unit based on the order of any one of the N time units in the n time units and its corresponding frequency domain resources, that is, determine the order of the time unit corresponding to the frequency domain resource with the highest frequency domain position in the M frequency domain resources in the n time units, and / or the order of the time unit corresponding to the frequency domain resource with the lowest frequency domain position in the M frequency domain resources in the n time units, so that the frequency hopping resource information for sending or receiving the reference signal (for example, including frequency domain resource information and time domain resource information) can be uniquely determined.

[0503] It should be understood that, considering resource utilization and resource scheduling flexibility, the frequency domain resource with the highest frequency domain position among the M frequency domain resources may have a different frequency domain position relationship with the second frequency. Different frequency domain position relationships can correspond to different frequency hopping patterns, that is, different frequency domain position relationships can correspond to different K values.

[0504] The specific implementation of determining the Kth time unit is further introduced below.

[0505] In one possible implementation, the Kth time unit is determined based on the fourth frequency and the frequency domain resource corresponding to the tth time unit in the N time units, including: the Kth time unit is determined based on the frequency domain position relationship between the frequency domain resource corresponding to the tth time unit and the second frequency. The frequency domain position relationship is the fifth frequency domain position relationship or the sixth frequency domain position relationship. The fifth frequency domain position relationship is: the frequency domain starting position of the frequency domain resource corresponding to the tth time unit is the same as b t The frequency domain position corresponding to the sum is equal to the second frequency, or the frequency domain position is less than the second frequency, and the difference between the two is less than b t+1 Or b. The sixth frequency domain position relationship is: the frequency domain starting position of the frequency domain resource corresponding to the tth time unit is the same as b t The frequency domain position corresponding to the sum is greater than the second frequency. t is the bandwidth of the frequency domain resource corresponding to the t-th time unit, b t+1is the bandwidth of the frequency domain resource corresponding to the t+1th time unit, and b is the bandwidth occupied by each frequency hopping. It can be understood that if the bandwidth occupied by each frequency hopping is the same, b t Can be equal to b.

[0506] That is to say, the first device can also determine the Kth time unit based on the frequency domain position relationship between the frequency domain resources corresponding to the tth time unit and the second frequency, and then different position relationships can correspond to different Kth time units and their corresponding frequency domain resources, thereby improving resource utilization or resource scheduling flexibility.

[0507] In a possible implementation, the fifth frequency domain position relationship may include: position relationship 5a or position relationship 5b. In position relationship 5a, the frequency domain resource corresponding to the t-th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain end position of the frequency domain resource (i.e., the highest frequency domain position) is less than or equal to the second frequency, and the frequency domain resource corresponding to the t+1-th time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, and its frequency domain starting position is determined based on the frequency domain starting position of the frequency domain resource corresponding to the t-th time unit and the combined bandwidth B. In this way, the frequency domain end position of the frequency domain resource corresponding to the t+1-th time unit may be less than the fourth frequency. In position relationship 5b, the difference from position relationship 5a is that the frequency domain resource corresponding to the t-th time unit may not be the frequency domain resource with the highest frequency domain position among the M frequency domain resources. In this way, the frequency domain end position of the frequency domain resource corresponding to the t+1-th time unit may be equal to the fourth frequency.

[0508] It should be understood that for the sixth frequency domain position relationship, the actual bandwidth of the frequency domain resource corresponding to the t-th time unit is less than b t , that is, the frequency domain resource corresponding to the tth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, that is, the frequency domain starting position of the frequency domain resource corresponding to the t+1th time unit can be less than the fourth frequency.

[0509] That is, for position relationship 5a, the frequency domain end position (i.e., the highest frequency domain position) of the frequency domain resource with the highest frequency domain position among the M frequency domain resources can be less than the second frequency. That is, when the first device hops to a frequency near the lowest frequency (i.e., the second frequency), the frequency domain start position of the next hop is less than the fourth frequency. For position relationship 5b, when the first device hops to a frequency near the second frequency, the next hop starts at the fourth frequency.

[0510] It can be understood that for the sixth frequency domain position relationship, the actual bandwidth of the frequency domain resource corresponding to the t-th time unit is less than b t, and the actual frequency domain end position (i.e., the highest frequency domain position) of the frequency domain resource corresponding to the t-th time unit can be equal to the second frequency, and the frequency domain end position of the frequency domain resource corresponding to the t+1-th time unit can be equal to the fourth frequency. In other words, after the first device hops to the vicinity of the second frequency (the highest frequency), it can continue to hop toward the second frequency, but the actual frequency hopping bandwidth is smaller than the configured bandwidth. The configured bandwidth can be, for example, the above-mentioned b t Or the bandwidth b occupied by each frequency hop.

[0511] It should be understood that the above-mentioned frequency domain position relationship may be agreed upon by the protocol; or, the above-mentioned may be negotiated in advance between the first device and the network; or, the above-mentioned may be indicated or configured by the network, and the embodiments of the present application do not make specific limitations on this.

[0512] For example, the position relationship 5a can be specifically shown in (a) of FIG. 16 , the position relationship 5b can be specifically shown in (b) of FIG. 16 , and the sixth frequency domain position relationship can be specifically shown in (c) of FIG. 16 .

[0513] Among them, for position relationship 5a, in (a) of Figure 16, the tth time unit is the first time unit, and the frequency domain resource #1 corresponding to the first time unit can be the frequency domain resource with the highest frequency domain position among the six frequency domain resources, and the highest frequency domain position of the frequency domain resource #1 corresponding to the first time unit is less than the second frequency. The t+1th time unit is the second time unit, and the frequency domain resource #2 corresponding to the second time unit is the frequency domain resource with the lowest frequency domain position among the six frequency domain resources, and the frequency domain starting position (i.e., the lowest frequency domain position) of the frequency domain resource #2 corresponding to the second time unit is less than the fourth frequency.

[0514] It can be understood that in position relationship 5a, the frequency domain resource #1 corresponding to the first time unit and other frequency domain resources (such as frequency domain resources #2 corresponding to the second time unit to the frequency domain resources corresponding to the sixth time unit) can be processed jointly to improve resource utilization.

[0515] For position relationship 5b, in (b) of Figure 16, the tth time unit is the first time unit, and the frequency domain resource #1 corresponding to the first time unit is not the frequency domain resource with the highest frequency domain position among the six frequency domain resources, while the frequency domain resource #6 corresponding to the sixth time unit is the frequency domain resource with the highest frequency domain position among the six frequency domain resources. The t+1th time unit is the second time unit, and the frequency domain resource #2 corresponding to the second time unit is the frequency domain resource with the lowest frequency domain position among the six frequency domain resources, and the frequency domain starting position of the frequency domain resource #2 corresponding to the second time unit is equal to the fourth frequency. It can be understood that, as shown in (b) of Figure 16, the frequency domain resource #1 corresponding to the first time unit can not be jointly processed with other frequency domain resources (for example, the frequency domain resource #2 corresponding to the second time unit to the frequency domain resource #6 corresponding to the sixth time unit), which can improve the flexibility of network scheduling resources.

[0516] For the sixth frequency domain position relationship, in (c) of Figure 16, the tth time unit is the second time unit, and the actual bandwidth of the frequency domain resource #2 corresponding to the second time unit is less than its configured bandwidth, and the frequency domain end position (i.e., the highest frequency domain position) of the frequency domain resource #2 is equal to the second frequency. In other words, the lowest frequency occupied by the reference signal sent by the transmitter coincides with the first frequency, which can be used as a default selection for the transmitter and receiver, without the need for additional instructions, thereby reducing signaling overhead.

[0517] It should be understood that in FIG16(c), frequency domain resources #1 to #2 and other frequency domain resources (e.g., frequency domain resources #3 corresponding to the third time unit to frequency domain resource #7 corresponding to the seventh time unit) do not need to be jointly processed. This can improve the flexibility of network scheduling resources.

[0518] Exemplarily, according to the fifth frequency domain position relationship or the sixth frequency domain position relationship, it can be determined whether the frequency domain resource corresponding to the t-th time unit is the frequency domain resource corresponding to the K-th time unit. If it is determined that the frequency domain resource corresponding to the t-th time unit is not the frequency domain resource corresponding to the K-th time unit, the first device can be based on the above b i and f i,i-1 , or the aforementioned b, or the aforementioned b and p, based on the frequency domain resources corresponding to the t-th time unit, determine the frequency domain resources corresponding to the t+1-th, t+2-th, t+x-th time units, or the frequency domain resources corresponding to the t-1-th, t-2-th, tx-th time units, and according to the above-mentioned positional relationship, determine whether the frequency domain resources corresponding to the t+x-th or tx-th time unit are the frequency domain resources corresponding to the K-th time unit.

[0519] The following is divided into Case 1a and Case 1b for explanation.

[0520] For case 1a:

[0521] In one possible implementation, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K+1th time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources; the Kth time unit is determined based on the frequency domain position relationship between the frequency domain resource corresponding to the tth time unit and the second frequency, including: the Kth time unit is determined based on the frequency domain position relationship and the frequency domain resource corresponding to the 1st time unit.

[0522] Among them, for the fifth frequency domain position correspondence, the time unit that is the Kth time unit can be determined by formula (34) or (35).

[0523] In formulas (34) and (35), F h is the second frequency. For the meanings of other parameters, please refer to the relevant descriptions of formula (3) and formula (4), which will not be repeated here.

[0524] It can be understood that the above formulas (33) and (34) are for n time units within a frequency hopping pattern period, that is, N is equal to n. If N is greater than n, the above formula (34) can be rewritten as formula (36), and formula (35) can be rewritten as formula (37).

[0525] It should be understood that for the fourth frequency domain position correspondence, the time unit that is the K+1th time unit can be determined by formula (38).

[0526] The specific parameters in formula (38) can be found in the above formulas (34) and (35) and will not be repeated here.

[0527] It can be understood that for n time units within a frequency hopping pattern period, N is equal to n. If N is greater than n, the above formula (38) can be rewritten as formula (39).

[0528] For case 1b:

[0529] Case 1b is similar to case 1a, except that the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K-1th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, that is, the Kth time unit is the surround time unit, and the K-1th time unit is the time unit before the surround.

[0530] In other words, in formulas (34) to (39) in case 1a above, the formula corresponding to K+1 is K in case 1b. For example, in formula (37) is K in case 1b, that is For example, formula (38) is K-1 in case 1b, that is

[0531] It should be understood that the above formulas (34) to (39) are only examples. The Kth time unit can also be determined based on the frequency domain resources corresponding to other time units. The specific method is similar to the above formulas (34) to (39) and will not be repeated here.

[0532] It can be understood that in case 1, for the first frequency domain position relationship and the second frequency domain position relationship, there may also be case 1c, that is, the frequency domain resource corresponding to the Kth time unit is not the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K+1th time unit is the frequency domain resource with the lowest position among the M frequency domain resources, or, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, but the frequency domain resource corresponding to the K-1th time unit is not the frequency domain resource with the highest frequency domain position among the M frequency domain resources, such as case (b) in Figure 16. The above formulas (34) to (39) are also applicable to case 1c.

[0533] It should be understood that for method 2, for the fifth frequency domain position relationship or the sixth frequency domain position relationship, similar to the aforementioned formulas (9) to (16), the correspondence between M frequency domain resources and N time units can also be determined according to different formulas, as exemplified below.

[0534] 1. For position relationship 5a:

[0535] In position relationship 5a, since the frequency domain end position of the frequency domain resource with the highest frequency domain position among the M frequency domain resources can be less than or equal to the second frequency, the frequency domain starting position of the frequency domain resource with the lowest frequency domain position among the M frequency domain resources can be less than or equal to the fourth frequency.

[0536] Among them, in case 1a, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K+1th time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources. In other words, the frequency domain end position (i.e., the highest frequency domain position) of the frequency domain resource corresponding to the Kth time unit is F K Less than or equal to the second frequency F h , the frequency domain starting position of the frequency domain resource corresponding to the K+1th time unit is less than or equal to the fourth frequency, that is, the frequency domain starting position is FK The difference between the combined bandwidth and the combined bandwidth. The combined bandwidth can be specifically referred to in formula (1) B. Please refer to formula (2) and do not elaborate on it here.

[0537] Exemplarily, the frequency domain starting position of the frequency domain resource corresponding to the mth time unit can be determined according to formula (40) or formula (41).

[0538] The meanings of the parameters in formula (40) and formula (41) can be found in formula (9) and formula (10), which will not be repeated here.

[0539] In case 1b, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K-1th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources. Therefore, formula (40) can be rewritten as formula (42).

[0540] Among them, F K-1 is the highest frequency domain position (i.e., the end frequency domain position) of the frequency domain resource corresponding to the K-1th time unit. The meaning of each parameter in formula (42) can be found in formula (9) and will not be repeated here.

[0541] It can be understood that in case 1b, formula (40) can be rewritten as formula (43).

[0542] The meaning of each parameter in formula (43) can be found in formula (10) and will not be repeated here.

[0543] 2. For position relationship 5b:

[0544] As described above about the position relationship 5b, the difference from the position relationship 5a is that the frequency domain resource with the lowest frequency domain position among the M frequency domain resources has the lowest frequency domain position (i.e., the frequency domain starting position) as the fourth frequency F c-l , and the frequency domain resource corresponding to the previous time unit of the frequency domain resource with the lowest frequency domain position has a frequency domain end position less than the second frequency F h As described above for case 1c, position relationship 5b applies to case 1c. The following example illustrates a case where the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, while the frequency domain resource corresponding to the K-1th time unit is not the frequency domain resource with the highest frequency domain position among the M frequency domain resources (e.g., (b) in FIG16 ).

[0545] Exemplarily, the frequency domain starting position of the frequency domain resource corresponding to the mth time unit can be determined according to formula (44) or formula (45).

[0546] In formula (44) and formula (45), F c-l is the fourth frequency, F c-l Can be replaced by The meanings of other parameters can be found in formula (9) and will not be elaborated here.

[0547] 3. Regarding the sixth frequency domain position relationship:

[0548] As described above regarding the sixth frequency domain position relationship, the difference from the position relationship 5b is that the frequency domain resource corresponding to the previous time unit of the frequency domain resource with the lowest frequency domain position among the M frequency domain resources is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, that is, the frequency domain end position (that is, the highest frequency domain position) of the frequency domain resource with the highest frequency domain position among the M frequency domain resources is the second frequency F h , the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, its frequency domain starting position (ie, the lowest frequency domain position) is actually the fourth frequency F c-l , that is, the actual frequency domain end position of the frequency domain resource corresponding to the time unit before the wraparound is equal to the second frequency.

[0549] It can be understood that the sixth frequency domain position relationship is applicable to Case 1a and Case 1b. In Case 1a, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, that is, the frequency domain end position of the frequency domain resource corresponding to the Kth time unit is the second frequency F h The frequency domain resource with the lowest frequency domain position in the frequency domain resource corresponding to the K+1th time unit, that is, the frequency domain starting position of the frequency domain resource corresponding to the K+1th time unit is the fourth frequency F c-l .

[0550] Exemplarily, the frequency domain starting position of the frequency domain resource corresponding to the mth time unit can be determined according to formula (46) or formula (47).

[0551] In formula (46) and formula (47), Can be replaced by the fourth frequency F c-l , the specific meanings of other parameters can be found in formula (9) and formula (10).

[0552] Among them, in case 1b, the frequency domain resource corresponding to the K-1th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, that is, the frequency domain end position of the frequency domain resource corresponding to the K-1th time unit is the second frequency F h The frequency domain starting position of the frequency domain resource corresponding to the K+1th time unit is the fourth frequency F c-l .

[0553] Exemplarily, the frequency domain starting position of the frequency domain resource corresponding to the mth time unit can be determined according to formula (48) or formula (49).

[0554] In formula (48) and formula (49), Can be replaced by the fourth frequency F c-l , the specific meanings of other parameters can be found in formula (9) and formula (10).

[0555] For case 2:

[0556] It should be understood that the frequency domain position relationship is similar to that in Case 1, with the difference that the frequency domain position relationship between the frequency domain resources corresponding to the t-th time unit and the fourth frequency is different from the above-mentioned fifth frequency domain position relationship and sixth frequency domain position relationship. The specific implementation of determining the K-th time unit is introduced below.

[0557] In a possible implementation, the frequency domain resource corresponding to the Kth time unit is determined based on the second frequency, including: the Kth time unit is determined based on the frequency domain position relationship between the frequency domain resource corresponding to the tth time unit and the fourth frequency. Wherein, the frequency position relationship is the seventh frequency domain position relationship or the eighth frequency domain position relationship. The seventh frequency domain position relationship is: the frequency domain starting position of the frequency domain resource corresponding to the tth time unit is the same as the frequency domain starting position of the bth frequency domain resource. t The frequency domain position corresponding to the sum of the t-th time unit is less than the fourth frequency, and the eighth frequency domain position relationship is: the frequency domain starting position of the frequency domain resource corresponding to the t-th time unit is equal to b t The frequency domain position corresponding to the sum is equal to the fourth frequency, or the frequency domain position is less than the fourth frequency, and the difference between the two is less than b t+1 Or b. b t is the bandwidth of the frequency domain resource corresponding to the t-th time unit, b t+1 is the bandwidth of the frequency domain resource corresponding to the t+1th time unit, and b is the bandwidth occupied by each frequency hopping. It can be understood that if the bandwidth occupied by each frequency hopping is the same, b t Can be equal to b.

[0558] That is to say, the first device can also determine the Kth time unit based on the frequency domain position relationship between the frequency domain resources corresponding to the tth time unit and the fourth frequency, and then different position relationships can correspond to different Kth time units and their corresponding frequency domain resources, thereby improving resource utilization or resource scheduling flexibility.

[0559] In a possible implementation, the seventh frequency domain position relationship may include: position relationship 7a or position relationship 7b. In position relationship 7a, the actual bandwidth of the frequency domain resource corresponding to the tth time unit is equal to the actual bandwidth of the bth time unit. t In position relationship 7b, the actual bandwidth of the frequency domain resource corresponding to the t-th time unit is less than b t , and the actual lowest frequency domain position of the frequency domain resource corresponding to the tth time unit can be equal to the fourth frequency.

[0560] That is to say, for position relationship 7a, the frequency domain resource with the lowest frequency domain position among the M frequency domain resources can have a lowest frequency domain position that is less than the fourth frequency, that is, the first device can continue to hop toward the fourth frequency direction (that is, the frequency reduction direction) when it is near the lowest frequency (that is, the fourth frequency), and then the frequency domain end position of the frequency domain resource corresponding to the next hop (that is, the next time unit) can be less than the second frequency. For position relationship 7b, the frequency domain resource with the lowest frequency domain position among the M frequency domain resources has an actual lowest frequency domain position (that is, the frequency domain end position) that is equal to the fourth frequency, that is, the first device can continue to hop toward the fourth frequency direction when it is near the lowest frequency, but the actual hopping bandwidth is less than the configured bandwidth. The configured bandwidth can be, for example, the above-mentioned b. t Or the bandwidth b occupied by each frequency hop, and thus the frequency domain end position of the frequency domain resource corresponding to the next hop can be equal to the second frequency.

[0561] It can be understood that for the eighth frequency domain position relationship, the frequency domain resource with the lowest frequency domain position among the M frequency domain resources has a lowest frequency domain position less than or equal to the fourth frequency, that is, the first device hops to near the fourth frequency, and the next hop starts from the highest frequency (that is, the second frequency).

[0562] It should be understood that the above-mentioned frequency domain position relationship may be agreed upon by the protocol; or, the above-mentioned frequency domain position relationship may be negotiated in advance between the first device and the network; or, the above-mentioned frequency domain position relationship may be indicated or configured by the network, and the embodiments of the present application do not make specific limitations on this.

[0563] For example, the position relationship 7a can be specifically shown in (a) of FIG. 17 , the position relationship 7b can be specifically shown in (b) of FIG. 17 , and the eighth frequency domain position relationship can be specifically shown in (c) of FIG. 17 , which are described below respectively.

[0564] For positional relation 7a:

[0565] In (a) of FIG17 , the second time unit is the tth time unit (i.e., the time unit before wrapping), that is, the lowest frequency domain position of the frequency domain resource #2 corresponding to the second time unit can be less than the fourth frequency, and the actual bandwidth of the frequency domain resource corresponding to the second time unit is equal to b t The t+1th time unit is the third time unit (i.e., the surrounding time unit).

[0566] It can be understood that, as shown in (a) in Figure 15, the frequency domain resource #1 corresponding to the first time unit and the frequency domain resource #2 can be jointly processed with other frequency domain resources (for example, the frequency domain resource #3 corresponding to the third time unit to the frequency domain resource #7 corresponding to the seventh time unit), thereby improving resource utilization.

[0567] For position relation 7b:

[0568] As mentioned above, the actual bandwidth of the frequency domain resource corresponding to the t-th time unit is less than b t , and thus the lowest frequency domain position of the frequency domain resource corresponding to the t-th time unit is not the actual highest frequency domain position. The actual lowest frequency domain position is equal to the fourth frequency. For details, see frequency domain resource #2 corresponding to the second time unit in (b) of Figure 17. In other words, the frequency domain resource corresponding to the t-th time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the t+1-th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources.

[0569] It can be understood that since the actual lowest frequency domain position is equal to the fourth frequency, the frequency domain starting position of the frequency domain resource with the highest frequency domain position among the M frequency domain resources can be equal to the second frequency. Specifically, see frequency domain resource #3 corresponding to the third time unit in (b) of Figure 17, whose frequency domain starting position is equal to the second frequency. In other words, it is assumed that the highest frequency occupied by the first device for sending the reference signal coincides with the second frequency, and no additional indication is required, which can reduce signaling overhead.

[0570] It should be understood that, as shown in FIG17(b), frequency domain resource #1 corresponding to the first time unit and frequency domain resource #2 corresponding to the second time unit may not be jointly processed with other frequency domain resources (e.g., frequency domain resource #7 corresponding to the third to seventh time units). This improves the flexibility of network scheduling resources.

[0571] For the eighth frequency domain position relationship:

[0572] The difference between the eighth frequency domain position relationship and the above position relationship is that the lowest frequency domain position of the frequency domain resource corresponding to the t-th time unit is less than or equal to the fourth frequency, and the lowest frequency domain position of the frequency domain resource corresponding to the t-th time unit should be close to the fourth frequency. t When the frequency domain position corresponding to the sum of is less than the fourth frequency, the frequency domain resource corresponding to the t-1th time unit is: the frequency domain resource with the lowest frequency domain position among the M frequency domain resources (for the case where t-1 is not equal to 1, that is, the t-1th time unit is not the first time unit), or the frequency domain resource corresponding to the t-1th time unit is: the frequency domain resource closest to the fourth frequency except the frequency domain resource with the lowest frequency domain position among the M frequency domain resources (that is, the t-1th time unit is the first time unit). In other words, the t-1th time unit is the time unit before the wraparound in case 2. The frequency domain resource corresponding to the tth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the actual frequency domain starting position of the frequency domain resource corresponding to the tth time unit is the second frequency, that is, the tth time unit is the wraparound time unit in case 2.

[0573] For example, in (c) of Figure 17, the tth time unit is the second time unit, that is, the wraparound time unit, and the frequency domain starting position of frequency domain resource #2 corresponding to the second time unit is the second frequency. The t-1th time unit is the first time unit, that is, the time unit before wraparound, and frequency domain resource #1 corresponding to the first time unit is the frequency domain resource closest to the fourth frequency, except for frequency domain resource #6 corresponding to the sixth time unit.

[0574] It should be understood that the frequency domain resource corresponding to the time unit before the wraparound in (c) in Figure 17 is not the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, which can be called case 2c, that is, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K-1th time unit is not the frequency domain resource with the lowest position among the M frequency domain resources, or, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, but the frequency domain resource corresponding to the K+1th time unit is not the frequency domain resource with the highest frequency domain position among the M frequency domain resources.

[0575] It is understood that, as shown in (c) of FIG17 , frequency domain resource #1 corresponding to the first time unit may not be jointly processed with other frequency domain resources (e.g., frequency domain resources corresponding to the second to sixth time units). This improves the flexibility of network scheduling resources.

[0576] The following is divided into Case 2a and Case 2b for explanation.

[0577] For case 2a:

[0578] In one possible implementation, the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K-1th time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources; the Kth time unit is determined based on the frequency domain position relationship between the frequency domain resource corresponding to the tth time unit and the first frequency, including: the Kth time unit is determined based on the frequency domain position relationship and the frequency domain resource corresponding to the 1st time unit.

[0579] Among them, for the seventh frequency domain position correspondence, the time unit that is the Kth time unit can be determined by formula (50) or (51).

[0580] In formulas (50) and (51), F c-l is the fourth frequency. For the meanings of other parameters, please refer to the relevant descriptions of formula (3) and formula (4), which will not be repeated here.

[0581] It can be understood that the above formulas (50) and (51) are for n time units within a frequency hopping pattern period, that is, N is equal to n. If N is greater than n, the above formula (50) can be rewritten as formula (52), and formula (51) can be rewritten as formula (53).

[0582] It should be understood that for the eighth frequency domain position correspondence, the time unit that is the Kth time unit can be determined by formula (54).

[0583] The specific parameters in formula (54) can be found in the above formulas (17) and (18) and will not be repeated here.

[0584] It can be understood that for n time units within a frequency hopping pattern period, N is equal to n. If N is greater than n, the above formula (54) can be rewritten as formula (55).

[0585] For case 2b:

[0586] Case 2b is similar to Case 2a, with the difference that the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the K+1th time unit is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, that is, the Kth time unit is the time unit before wrapping, and the K+1th time unit is the wrapping time unit.

[0587] In other words, in formulas (50) to (55) in case 2a above, the formula corresponding to K is K+1 in case 2b. For example, in formula (51) is K+1 in case 2b, that is For example, in formula (54) is K+1 i...

Claims

1. A resource determination method, characterized in that: The method comprises: determining a first frequency and / or a second frequency; According to the first frequency and / or the second frequency, determine the correspondence between M frequency domain resources used for frequency hopping and N time units, the N time units are used to send or receive a reference signal, the first frequency is the lowest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, the second frequency is the highest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, M is an integer greater than 1, and N is an integer greater than 1.

2. The method according to claim 1, characterized in that The first frequency is the sum of a reference frequency and a first frequency domain offset value, and / or the second frequency is the sum of a reference frequency and a second frequency domain offset value; wherein the reference frequency is one of the following: the starting frequency of the BWP, the highest frequency of the BWP, the center frequency of the BWP, or the reference frequency corresponding to the BWP.

3. The method according to claim 1 or 2, characterized in that: The frequency domain resource corresponding to the Kth time unit among the N time units is determined according to the first frequency, and the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position or the highest frequency domain resource among the M frequency domain resources.

4. The method according to claim 3, characterized in that The frequency domain resource corresponding to the Kth time unit is determined according to the first frequency, including: the frequency domain resource corresponding to the Kth time unit is determined according to the third frequency, and the frequency domain resource corresponding to the third frequency is the frequency domain resource with the highest frequency domain position among the M frequency domain resources; The third frequency is determined according to the first frequency and the total bandwidth occupied by the M frequency domain resources.

5. The method according to claim 1 or 2, characterized in that: The frequency domain resource corresponding to the Kth time unit among the N time units is determined according to the second frequency, and the frequency domain resource corresponding to the Kth time unit is the frequency domain resource with the lowest frequency domain position or the highest frequency among the M frequency domain resources.

6. The method according to claim 5, characterized in that The frequency domain resource corresponding to the Kth time unit is determined according to the second frequency, including: the frequency domain resource corresponding to the Kth time unit is determined according to the fourth frequency, and the frequency domain resource corresponding to the fourth frequency is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources; The fourth frequency is determined according to the second frequency and the total bandwidth occupied by the M frequency domain resources.

7. The method according to any one of claims 1 to 6, characterized in that The method further comprises: Frequency hopping configuration information is received, where the frequency hopping configuration information is used to indicate at least one of the following: the first frequency, the second frequency, or a combined bandwidth.

8. The method according to claim 7, characterized in that The frequency hopping configuration information is also used to indicate at least one of the following: location information of the frequency domain resources corresponding to the first time unit among the N time units, time domain location information corresponding to the first time unit among the N time units, bandwidth of the frequency domain resources corresponding to the ith time unit, overlap size between the frequency domain resources corresponding to the ith time unit and the frequency domain resources corresponding to the jth time unit, number of frequency hopping, frequency domain offset corresponding to two adjacent time units among the N time units, time interval between the ith time unit and the jth time unit; wherein, the ith time unit and the jth time unit are time units among the N time units, 1≤i≠j≤N.

9. The method according to any one of claims 1 to 8, characterized in that The method further comprises: Sending expected configuration information, where the expected configuration information is used to indicate at least one of the following: the lowest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, the highest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, a combined bandwidth, or a frequency domain position relationship between the reference frequency domain position and the frequency domain resource with the lowest frequency domain position or the frequency domain resource with the highest frequency domain position among the M frequency domain resources; The reference frequency domain position includes at least one of the following: the first frequency, the third frequency, the second frequency, or the fourth frequency, the frequency domain resource corresponding to the third frequency is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the fourth frequency is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources.

10. The method according to any one of claims 1 to 9, characterized in that The method further comprises: Receive first request information, where the first request information is used to request expected configuration information, where the expected configuration information is used to indicate at least one of the following: the lowest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, the highest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, a combined bandwidth, or a frequency domain position relationship between the reference frequency domain position and the frequency domain resource with the lowest frequency domain position or the frequency domain resource with the highest frequency domain position among the M frequency domain resources; The reference frequency domain position includes at least one of the following: the first frequency, the third frequency, the second frequency, or the fourth frequency, the frequency domain resource corresponding to the third frequency is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the fourth frequency is The resource is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources.

11. The method according to any one of claims 1 to 10, characterized in that The method further comprises: Sending second request information, where the second request information is used to request configuration information, where the configuration information is used to indicate at least one of the following: the lowest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, the highest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, a combined bandwidth, or a frequency domain position relationship between the reference frequency domain position and the frequency domain resource with the lowest frequency domain position or the frequency domain resource with the highest frequency domain position among the M frequency domain resources; The reference frequency domain position includes at least one of the following: the first frequency, the third frequency, the second frequency, or the fourth frequency, the frequency domain resource corresponding to the third frequency is the frequency domain resource with the highest frequency domain position among the M frequency domain resources, and the frequency domain resource corresponding to the fourth frequency is the frequency domain resource with the lowest frequency domain position among the M frequency domain resources.

12. The method according to claim 11, characterized in that The second request information includes desired configuration information.

13. The method according to any one of claims 1 to 12, characterized in that The reference signal is used for positioning.

14. A resource determination method, characterized in that: The method comprises: Generate frequency hopping configuration information, the frequency hopping configuration information is used to determine the association relationship between multiple frequency domain resources and multiple time domain resources, the multiple frequency domain resources are used for frequency hopping, and the multiple time domain resources are used to send or receive reference signals; wherein the frequency hopping configuration information includes information used to indicate at least one of the following: a first frequency, a second frequency, or a combined bandwidth, the first frequency is the lowest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, the second frequency is the highest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, and the combined bandwidth is the total bandwidth occupied by the multiple frequency domain resources; The frequency hopping configuration information is sent.

15. The method according to claim 14, characterized in that The first frequency is the sum of a reference frequency and a first frequency domain offset value, and / or the second frequency is the sum of a reference frequency and a second frequency domain offset value; wherein the reference frequency is at least one of the following: the starting frequency of the BWP, the highest frequency of the BWP, or the reference frequency corresponding to the BWP.

16. The method according to claim 14 or 15, characterized in that The reference signal is used for positioning.

17. The method according to any one of claims 14 to 16, characterized in that: The multiple time domain resources include N time units, and the frequency hopping configuration information is also used to indicate at least one of the following: the position information of the frequency domain resources corresponding to the first time unit in the N time units, the time domain position information corresponding to the first time unit in the N time units, the bandwidth of the frequency domain resources corresponding to the i-th time unit, the overlap size between the frequency domain resources corresponding to the i-th time unit and the frequency domain resources corresponding to the j-th time unit, the number of frequency hopping times, the frequency domain offset corresponding to two adjacent time units in the N time units, or the time interval between the i-th time unit and the j-th time unit; wherein the i-th time unit and the j-th time unit are time units in the N time units, 1≤i≠j≤N.

18. The method according to any one of claims 14 to 17, characterized in that: The method further comprises: Receive expected configuration information, where the expected configuration information is used to indicate at least one of the following: the lowest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, the highest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, a combined bandwidth, or a frequency domain position relationship between the reference frequency domain position and the frequency domain resource with the lowest frequency domain position or the frequency domain resource with the highest frequency domain position among the multiple frequency domain resources; The reference frequency domain position includes at least one of the following: the first frequency, the third frequency, the second frequency, or the fourth frequency, the frequency domain resource corresponding to the third frequency is the frequency domain resource with the highest frequency domain position among the multiple frequency domain resources, and the frequency domain resource corresponding to the fourth frequency is the frequency domain resource with the lowest frequency domain position among the multiple frequency domain resources.

19. The method according to any one of claims 14 to 18, characterized in that The method further comprises: Sending first request information, where the first request information is used to request expected configuration information, where the expected configuration information is used to indicate at least one of the following: the lowest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, the highest frequency domain position of the frequency domain resources occupied by sending or receiving the reference signal, a combined bandwidth, or a frequency domain position relationship between the reference frequency domain position and the frequency domain resource with the lowest frequency domain position or the frequency domain resource with the highest frequency domain position among the multiple frequency domain resources; The reference frequency domain position includes at least one of the following: the first frequency, the third frequency, the second frequency, or the fourth frequency, the frequency domain resource corresponding to the third frequency is the frequency domain resource with the highest frequency domain position among the multiple frequency domain resources, and the frequency domain resource corresponding to the fourth frequency is the frequency domain resource with the lowest frequency domain position among the multiple frequency domain resources.

20. The method according to any one of claims 14 to 19, characterized in that The method further comprises: receiving second request information, the second request information being used to request configuration information, the configuration information being used to indicate at least one of the following: the lowest frequency domain position of the frequency domain resource occupied by sending or receiving the reference signal, the highest frequency domain position of the frequency domain resource occupied by sending or receiving the reference signal, the combined bandwidth, or the reference frequency domain position and the frequency domain resource with the lowest frequency domain position or the highest frequency domain position among the multiple frequency domain resources The frequency domain position relationship between the frequency domain resources; The reference frequency domain position includes at least one of the following: the first frequency, the third frequency, the second frequency, or the fourth frequency, the frequency domain resource corresponding to the third frequency is the frequency domain resource with the highest frequency domain position among the multiple frequency domain resources, and the frequency domain resource corresponding to the fourth frequency is the frequency domain resource with the lowest frequency domain position among the multiple frequency domain resources.

21. The method according to claim 20, characterized in that The second request information includes desired configuration information.

22. A resource determination method, characterized in that: The method comprises: Receive frequency hopping configuration information, where the frequency hopping configuration information is used to indicate that an i-th time unit among N time units is associated with a j-th frequency domain resource among M frequency domain resources; wherein the M frequency domain resources are used for frequency hopping, the N time units are used for sending or receiving reference signals, M is an integer greater than 1, N is an integer greater than 1, 1≤i≤N, 1≤j≤M; A correspondence between the N time units and the M frequency domain resources is determined according to the frequency hopping configuration information.

23. A resource determination method, characterized in that: The method comprises: Generate frequency hopping configuration information, where the frequency hopping configuration information is used to indicate that an i-th time unit among N time units is associated with a j-th frequency domain resource among M frequency domain resources; wherein the M frequency domain resources are used for frequency hopping, the N time units are used for sending or receiving reference signals, M is an integer greater than 1, N is an integer greater than 1, 1≤i≤N, 1≤j≤M; The frequency hopping configuration information is sent.

24. The method according to claim 22 or 23, characterized in that The frequency hopping configuration information includes time domain sequence information, and the time domain sequence information is used to indicate that the i-th time unit is associated with the j-th frequency domain resource.

25. The method according to claim 24, characterized in that The frequency hopping configuration information also includes frequency domain index information, and the frequency domain index information includes index information of the j-th frequency domain resource.

26. The method according to any one of claims 22 to 25, characterized in that The M frequency domain resources are determined according to a first frequency hopping parameter set; The first frequency hopping parameter set includes at least one of the following: location information of the frequency domain resources corresponding to the first time unit in the N time units, time domain location information corresponding to the first time unit in the N time units, bandwidth of the frequency domain resources corresponding to the ith time unit, overlap size between the frequency domain resources corresponding to the ith time unit and the frequency domain resources corresponding to the Lth time unit in the N time units, number of frequency hopping, frequency domain offset corresponding to two adjacent time units in the N time units, or time interval between the ith time unit and the Lth time unit, 1≤i≠L≤N.

27. The method according to any one of claims 22 to 26, characterized in that The frequency hopping configuration information is also used to indicate the first frequency hopping parameter set.

28. A communication device, characterized in that: The communication device includes a module or unit for executing the resource determination method described in any one of claims 1-13, or a module or unit for executing the resource determination method described in any one of claims 14-21, or a module or unit for the resource determination method described in any one of claims 22, 24-27, or a module or unit for the resource determination method described in any one of claims 23-27.

29. A communication device, characterized in that: The communication device includes a processor, and the processor is used to enable the communication device to execute the resource determination method according to any one of claims 1-13 through logic circuits and / or execution instructions, or enable the communication device to execute the resource determination method according to any one of claims 14-21, or enable the communication device to execute the resource determination method according to any one of claims 22, 24-27, or enable the communication device to execute the resource determination method according to any one of claims 23-27.

30. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes instructions, which, when executed by a processor, enable the resource determination method according to any one of claims 1-13, or the resource determination method according to any one of claims 14-21, or the resource determination method according to any one of claims 22, 24-27, or the resource determination method according to any one of claims 23-27 to be implemented.

31. A computer program product, characterized in that The computer program product includes instructions, which, when executed on a computer, cause the computer to execute the resource determination method according to any one of claims 1-13, or cause the computer to execute the resource determination method according to any one of claims 14-21, or cause the computer to execute the resource determination method according to any one of claims 22, 24-27, or cause the computer to execute the resource determination method according to any one of claims 23-27.

32. A communication system, characterized in that: It includes a first device and a second device, the first device is used to execute the resource determination method according to any one of claims 1-13, and the second device is used to execute the resource determination method according to any one of claims 14-21; or, the first device is used to execute the resource determination method according to any one of claims 22 and 24-27, and the second device is used to execute the resource determination method according to any one of claims 23-27.

Images