Communication method and device, and program product and storage medium

Abstract

The present application relates to the technical field of communications. Provided are a communication method and device, and a program product and a storage medium. In the method, on the basis of measurement information, a network apparatus can flexibly determine, for a terminal apparatus, the number of time sub-units on a time unit that are used for transmitting a first signal, and a bandwidth on the time unit. In this way, the flexibility of transmitting the first signal is improved, and the method is conducive to reducing resources occupied by each transmission of the first signal and improving the power spectral density of the transmitted first signal.

Description

Communication method, device, program product, and storage medium

[0001] Cross-reference to related applications

[0002] This application claims priority to the Chinese patent application No. 202410980706.2, filed on July 19, 2024, and entitled “A communication method, device, program product, and storage medium”, the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, and in particular to a communication method, device, program product, and storage medium. BACKGROUND

[0004] Frequency hopping is a spread spectrum technology that uses carrier hopping to achieve spectrum widening. Frequency hopping includes inter-slot frequency hopping. For example, a terminal device can transmit a sounding reference signal (SRS) using inter-slot frequency hopping. Specifically, the terminal device can hop in units of slots, and transmit the SRS on one subband in each of the multiple slots. However, in this way, the bandwidth occupied by each frequency hopping is one subband, resulting in poor flexibility of the transmitted signal. SUMMARY

[0005] The present application provides a communication method, device, program product, and storage medium, which are used to improve the flexibility of the transmitted signal.

[0006] In a first aspect, an embodiment of the present application provides a communication method. The method can be applied to a network device side. The network device side can refer to a network device itself (such as a wireless access device, such as a base station device, or a core network device, such as an access and mobility management function (AMF), etc.), or a module in the network device, wherein the module in the network device can be a processor, a chip or a chip system, etc. in the network device; or can be a logic module or software capable of realizing all or part of the functions, such as a central unit (CU) (or a control unit), a distributed unit (DU), a central unit control plane (CU-CP), a central unit user plane (CU-UP), an open central unit (O-CU) or a radio access network intelligent controller (RIC). The RIC can include, for example, a non-real time radio access network intelligent controller (Non-RT RIC) and / or a near-real time RAN intelligent controller (Near-RT RIC). The method comprises: receiving measurement information, the measurement information indicating a measurement parameter of a channel (such as a downlink channel) between a terminal device side and the network device side, for example, the measurement information can be received by the network device side from the terminal device side; indicating a resource for transmitting a first signal, for example, indicating the resource to the terminal device side, the resource comprising a sub-time unit for transmitting the first signal in one time unit of a plurality of time units, and a bandwidth for transmitting the first signal on the one time unit, the number of the sub-time unit for transmitting the first signal on the one time unit and / or the bandwidth for transmitting the first signal on the one time unit being determined based on the measurement information.

[0007] The plurality of time units are used for transmitting the first signal. One time unit can be any of the plurality of time units, or can be each of the plurality of time units, or one time unit can be replaced by any or each of the plurality of time units. One time unit can include a plurality of sub-time units, and the time unit is, for example, a time slot, and the sub-time unit is, for example, a symbol. The size of the bandwidth used for transmitting the first signal by any two time units of the plurality of time units can be the same or different, and is not limited. The bandwidth refers to a frequency range used for transmitting the first signal.

[0008] In the embodiments of the present application, since the number of sub-time units used for transmitting the first signal on one time unit, and / or the bandwidth used for transmitting the first signal on the time unit is determined based on the measurement information, the bandwidth used for transmitting the first signal on any two time units can be different, and / or the number of sub-time units used for transmitting the first signal on any two time units can also be different, or it can also be described that the bandwidth and / or the number of sub-time units used for transmitting the first signal on one time unit is dynamically changed, which makes the flexibility of the resource for transmitting the first signal higher, and also improves the flexibility of transmitting the first signal. In addition, the bandwidth and the sub-time unit used for transmitting the first signal on one time unit are flexible and variable and related to the measurement information, which not only can reduce the bandwidth of transmitting the first signal at one time, thereby improving the power spectral density of transmitting the first signal, but also can reduce the total bandwidth of all sub-time units within one time unit, thereby improving the utilization efficiency of frequency domain resources. In addition, the determined bandwidth and the number of sub-time units are more in line with the communication demand. In addition, the bandwidth occupied by transmitting the first signal at one time can be less, and the multiplexing capability of wireless resources can be enhanced, thereby increasing the number of users for multiplexing wireless resources.

[0009] In a possible implementation, the measurement information includes information of a channel sparsity corresponding to an upper limit of the bandwidth used for transmitting the first signal on one time unit, wherein: the smaller the channel sparsity, the greater the bandwidth used for transmitting the first signal on one time unit; or, the greater the channel sparsity, the smaller the bandwidth used for transmitting the first signal on the one time unit.

[0010] The channel sparsity corresponding to the upper limit of the bandwidth used for transmitting the first signal on one time unit can be understood as the degree of flatness of the channel power spectrum in the frequency domain range corresponding to the upper limit of the bandwidth on the time unit. The channel sparsity is used to represent the power variation, the power spectral density variation, or the channel gain variation, etc.

[0011] Thus, allocating less bandwidth on the time unit with a larger value of the channel sparsity can reduce the overhead of transmitting the first signal. Allocating more bandwidth on the time unit with a larger value of the channel sparsity can help the network device to more accurately receive the first signal. In the case where the first signal is a reference signal (such as an uplink reference signal), it is beneficial for the network device to more accurately perform channel (such as uplink channel) estimation.

[0012] In a possible implementation, the bandwidth for transmitting the first signal on the time unit is a bandwidth in the first correspondence relationship that matches the value range to which the channel sparsity belongs, where the first correspondence relationship indicates a correspondence relationship between at least one value range of the channel sparsity and at least one bandwidth.

[0013] Thus, a manner for determining the bandwidth for transmitting the first signal on the time unit is provided, and the manner does not involve complex calculation, which is beneficial for improving the efficiency of determining the bandwidth.

[0014] In a possible implementation, the channel sparsity satisfies the following formula:

[0015] where S represents the channel sparsity, r1, r2, and r3 are all real numbers, r3 is greater than r2, r2 is greater than r1, gain max represents a maximum channel gain corresponding to an upper limit of the bandwidth on the time unit, gain min represents a minimum channel gain corresponding to the upper limit of the bandwidth on the time unit, gain avg represents an average channel gain corresponding to the upper limit of the bandwidth on the time unit, w1 and w2 are both real numbers, and w1 is less than w2.

[0016] In a possible implementation, the measurement information includes information about a channel path loss corresponding to an upper limit of the bandwidth for transmitting the first signal on the time unit, where the lower the channel path loss, the more the number of sub-time units for transmitting the first signal on the time unit; or the higher the channel path loss, the fewer the number of sub-time units for transmitting the first signal on the time unit.

[0017] Thus, allocating less sub-time unit on the time unit with a larger value of the path loss can reduce the path loss of transmitting the first signal. Allocating more sub-time unit on the time unit with a smaller value of the path loss can help more accurately transmit the first signal. In the case where the first signal is a reference signal, it is beneficial for the network device to more accurately perform channel estimation.

[0018] In a possible implementation, the number of sub-time units used for transmitting the first signal in a time unit is the number of sub-time units in the second correspondence that matches the value range to which the path loss belongs, where the second correspondence indicates a correspondence between at least one value range of the path loss and at least one number of sub-time units.

[0019] In this way, a manner for determining the number of sub-time units is provided, and the manner does not involve complex calculation, thereby facilitating improvement of efficiency of determining the number of sub-time units.

[0020] In a possible implementation, the bandwidth used for transmitting the first signal in a time unit is indicated by: indicating the first number and the first position set of at least one frequency domain resource, the first number representing a total number of frequency domain resources included in (or divided by) the upper limit of the bandwidth used for transmitting the first signal in a time unit, the at least one frequency domain resource being a frequency domain resource used for transmitting the first signal in a time unit, and the at least one first position, each of the at least one first position representing a position of a frequency domain resource in the at least one frequency domain resource on the upper limit of the bandwidth used for transmitting the first signal in a time unit. Optionally, the frequency domain resource can be a positive integer number of resource blocks (RBs), or a positive integer number of resource elements (REs), or a resource particle, a resource unit, or a resource element.

[0021] In this way, the upper limit of the bandwidth of a time unit is smaller than the total bandwidth used for transmitting the first signal, and therefore the first position set is indicated, thereby facilitating saving of the number of bits required for indicating the bandwidth of the first signal.

[0022] In a possible implementation, the method further includes: transmitting first information, the first information indicating a second position, the second position being a position of a starting frequency domain resource in the at least one frequency domain resource in the total bandwidth, where the position of a frequency domain resource in the at least one frequency domain resource in the total bandwidth is determined based on the second position and the first position of the frequency domain resource, and the total bandwidth is a set of maximum transmission bandwidths used for transmitting the first signal in a plurality of time units.

[0023] In this way, a manner for determining the position of the frequency domain resource in the total bandwidth is provided, and the manner has less change to the terminal device and the network device and has low implementation cost.

[0024] In a possible implementation, the position of the frequency domain resource in the total bandwidth satisfies the following formula:

[0025] wherein, represents a starting position of the frequency domain resource in the total bandwidth, denotes a start position of the total bandwidth, K TC is a comb size, n b denotes an index of the second position, B SRS is a first parameter, denotes a number of subcarriers included in a bandwidth upper limit of the one time unit, P denotes a first number, and p denotes a first position of the one frequency domain resource.

[0026] In a possible implementation, the second position is determined based on a second parameter, and the second parameter indicates an order of the one time unit for transmitting the first signal in the plurality of time units.

[0027] In a possible implementation, the second parameter satisfies the following formula:

[0028] wherein n SRS is the third parameter, is a number of time units included in one frame, n f is a frame number of the one frame, is a number of the one time unit in the one frame, T offset is an offset between a sub-time unit of the one time unit and a start sub-time unit in the at least one sub-time unit, T SRS is a frequency hopping period of the first signal.

[0029] In a possible implementation, the bandwidth of the one time unit for transmitting the first signal is a partial bandwidth or a whole bandwidth of a bandwidth upper limit of the one time unit for transmitting the first signal.

[0030] In this way, when the bandwidth upper limit is configured, the network device can flexibly determine the bandwidth for transmitting the first signal based on the measurement information, and improve the flexibility of transmitting the first signal.

[0031] In a possible implementation, the measurement information is carried in a channel state information report.

[0032] In this way, the measurement information is reported on the multiplexed channel state information report, without increasing the number of interactions between the terminal device and the network device.

[0033] In a possible implementation, the indication of the sub-time unit of the one time unit for transmitting the first signal further includes an indication of a start sub-time unit of the one time unit for transmitting the first signal.

[0034] In a possible implementation, the number of sub-time units used for transmitting the first signal in at least two of the plurality of time units is different; or, the number of sub-time units used for transmitting the first signal in any two of the plurality of time units is the same.

[0035] In a possible implementation, the size of the bandwidth used for transmitting the first signal in at least two of the plurality of time units is different; or, the size of the bandwidth used for transmitting the first signal in any two of the plurality of time units is the same.

[0036] In a second aspect, an embodiment of the present application provides a communication method. The method can be applied to a terminal device side. The terminal device side can refer to a terminal device itself (for example, a mobile phone, a vehicle-mounted terminal, etc.), or a module in the terminal device, and can also be a logical module or software that can implement all or part of the functions. The module in the terminal device is, for example, a processor, a communication module, or a circuit or chip responsible for a communication function in the terminal device, and the chip is, for example, a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core, etc. For ease of description, the terminal device is taken as an example to introduce the method. The method comprises: sending measurement information, for example, sending the measurement information to a network device side, the measurement information indicating a measurement parameter of a channel between the terminal device side and the network device side; and receiving an indication of a resource used for transmitting a first signal, for example, receiving the indication of the resource from the network device side, the resource including a sub-time unit used for transmitting the first signal in one time unit of a plurality of time units, and a bandwidth used for transmitting the first signal on the one time unit, and the number of the sub-time unit used for transmitting the first signal on the one time unit and / or the bandwidth used for transmitting the first signal on the one time unit is related to the measurement information.

[0037] In a possible implementation, the measurement information includes information of a channel sparsity corresponding to an upper limit of the bandwidth used for transmitting the first signal on the one time unit, where: the smaller the channel sparsity, the larger the bandwidth used for transmitting the first signal on the one time unit; or, the larger the channel sparsity, the smaller the bandwidth used for transmitting the first signal on the one time unit.

[0038] In a possible implementation, the bandwidth used for transmitting the first signal on the one time unit is a bandwidth in a first correspondence relationship that matches a value range to which the channel sparsity belongs, where: the first correspondence relationship indicates a correspondence relationship between at least one value range of the channel sparsity and at least one bandwidth.

[0039] In a possible implementation, the channel sparsity satisfies the following formula:

[0040] wherein S represents the channel sparsity, r1, r2, and r3 are all real numbers, r3 is greater than r2, r2 is greater than r1, gain max represents the maximum channel gain corresponding to the upper limit of the bandwidth in the one time unit, gain min represents the minimum channel gain corresponding to the upper limit of the bandwidth in the one time unit, gain avg represents the average channel gain corresponding to the upper limit of the bandwidth in the one time unit, w1 and w2 are both real numbers, and w1 is less than w2.

[0041] In a possible implementation, the measurement information includes information about a channel loss corresponding to the upper limit of the bandwidth in the one time unit for transmitting the first signal, where: the lower the channel loss, the greater the number of sub-time units in the one time unit for transmitting the first signal; or, the higher the channel loss, the smaller the number of sub-time units in the one time unit for transmitting the first signal.

[0042] In a possible implementation, the number of sub-time units in the one time unit for transmitting the first signal is the number of sub-time units in the second correspondence relationship that matches the value range to which the channel loss belongs, where: the second correspondence relationship indicates a correspondence relationship between at least one value range of the channel loss and at least one number of sub-time units.

[0043] In a possible implementation, the indication of the bandwidth in the one time unit for transmitting the first signal includes: indication of a first number and a first position set of at least one frequency domain resource, where the first number represents a total number of frequency domain resources included in the upper limit of the bandwidth in the one time unit for transmitting the first signal, the at least one frequency domain resource is a frequency domain resource in the one time unit for transmitting the first uplink signal, the first position set includes at least one first position, and each of the at least one first position represents a position of one of the at least one frequency domain resource on the upper limit of the bandwidth in the one time unit for transmitting the first signal. Optionally, the frequency domain resource can be a positive integer number of RBs, or a positive integer number of REs, or a resource particle, a resource unit, or a resource element, etc.

[0044] In a possible implementation, the method further includes: receiving first information indicating a second position, the second position being a position of a starting frequency domain resource in the at least one frequency domain resource in the total bandwidth, where: a position of one of the at least one frequency domain resource in the total bandwidth is determined based on the second position and the first position of the one frequency domain resource, and the total bandwidth is a set of upper limits of bandwidths in a plurality of time units for transmitting the first signal.

[0045] In a possible implementation, a position of the one frequency domain resource in the total bandwidth satisfies the following formula:

[0046] wherein, represents a starting position of the one frequency domain resource in the total bandwidth, represents a starting position of the total bandwidth, K TC is a comb size, n b represents an index of the second position, B SRS is a first parameter, represents a number of subcarriers included in the bandwidth upper limit of the one time unit, P represents a first number, and p represents a first position of the one frequency domain resource.

[0047] In a possible implementation, the second position is determined based on a second parameter, and the second parameter indicates an order of the one time unit for transmitting the first signal in the plurality of time units.

[0048] In a possible implementation, the second parameter satisfies the following formula:

[0049] wherein, n SRS is a second parameter, is a number of time units included in one frame, n f is a frame number of the one frame, is a number of the one time unit in the one frame, T offset is an offset between a sub-time unit of the one time unit and a starting sub-time unit in the at least one sub-time unit, T SRS is a frequency hopping period of the first signal.

[0050] In a possible implementation, the bandwidth of the one time unit for transmitting the first signal is a partial bandwidth or a whole bandwidth of a bandwidth upper limit of the one time unit for transmitting the first signal.

[0051] In a possible implementation, the measurement information is carried in a channel state information report.

[0052] In a possible implementation, the at least one sub-time unit of the one time unit further includes an indication that indicates a starting sub-time unit of the one time unit for transmitting the first signal.

[0053] In a possible implementation, the number of sub-time units used for transmitting the first signal is different in at least two of the plurality of time units; or, the number of sub-time units used for transmitting the first signal is the same in any two of the plurality of time units.

[0054] In a possible implementation, the size of the bandwidth used for transmitting the first signal is different in at least two of the plurality of time units; or, the size of the bandwidth used for transmitting the first signal is the same in any two of the plurality of time units.

[0055] In a third aspect, an embodiment of the present application provides a communication method. The method can be applied to a network device side. The content of the network device side can refer to the content of the network device side discussed in the first aspect, which is not listed here. The method comprises: receiving a first signal on a resource, for example, receiving a first signal from a terminal device side, wherein the resource comprises a plurality of time units respectively used for transmitting sub-time units of the first signal, and a plurality of time units respectively used for transmitting bandwidths of the first signal, wherein the number of sub-time units used for transmitting the first signal is different in at least two of the plurality of time units, and / or the bandwidth used for transmitting the first signal is different in at least two of the plurality of time units.

[0056] In a possible implementation, the method further comprises: receiving measurement information, the measurement information indicating a measurement parameter of a channel between the terminal device side and the network device side; and indicating the resource, wherein the number of sub-time units used for transmitting the first signal on a time unit and the bandwidth used for transmitting the first signal on the time unit are determined based on the measurement information.

[0057] [According to Rule 91 Correction 04.11.2025] In a possible implementation, the measurement information comprises information of a channel sparsity corresponding to an upper limit of the bandwidth used for transmitting the first signal on a time unit, wherein: the smaller the channel sparsity, the larger the bandwidth used for transmitting the first signal on the time unit; or, the larger the channel sparsity, the smaller the bandwidth used for transmitting the first signal on the time unit.

[0058] In a possible implementation, the bandwidth used for transmitting the first signal on a time unit is: a bandwidth in a first correspondence relationship that matches a value range to which the channel sparsity belongs, wherein: the first correspondence relationship indicates a correspondence relationship between at least one value range of the channel sparsity and at least one bandwidth.

[0059] In a possible implementation, the channel sparsity satisfies the following formula:

[0060] wherein S represents channel sparsity, r1, r2 and r3 are all real numbers, r3 is greater than r2, and r2 is greater than r1, gain max represents the maximum channel gain corresponding to the upper limit of the bandwidth in the one time unit, gain min represents the minimum channel gain corresponding to the upper limit of the bandwidth in the one time unit, gain avg represents the average channel gain corresponding to the upper limit of the bandwidth in the one time unit, w1 and w2 are both real numbers, and w1 is less than w2.

[0061] In a possible implementation, the measurement information comprises information of a channel loss corresponding to the upper limit of the bandwidth in the one time unit for transmitting the first signal, wherein: the lower the channel loss, the greater the number of the sub-time units in the one time unit for transmitting the first signal; or, the higher the channel loss, the smaller the number of the sub-time units in the one time unit for transmitting the first signal.

[0062] In a possible implementation, the number of the sub-time units in the one time unit for transmitting the first signal is the number of the sub-time units in the second correspondence relationship that matches the value range to which the channel loss belongs, wherein: the second correspondence relationship indicates a correspondence relationship between at least one value range of the channel loss and at least one number of the sub-time units.

[0063] In a possible implementation, the indication of the bandwidth in the one time unit for transmitting the first signal comprises: indication of a first number and a first position set of at least one frequency domain resource, the first number representing a total number of frequency domain resources included (or divided) in the upper limit of the bandwidth in the one time unit for transmitting the first signal, the at least one frequency domain resource being a frequency domain resource in the one time unit for transmitting the first uplink signal, and the first position set comprising at least one first position, each of the at least one first position representing a position of one frequency domain resource in the at least one frequency domain resource on the upper limit of the bandwidth in the one time unit for transmitting the first signal. Optionally, the frequency domain resource can be a positive integer number of resource blocks (RBs), or a positive integer number of resource elements (REs), or a resource particle, a resource unit or a resource element, etc.

[0064] In a possible implementation, the method further comprises: sending, to the terminal device, first information indicating a second position, the second position being a position of a starting frequency domain resource in the at least one frequency domain resource in the total bandwidth, wherein: a position of one frequency domain resource in the at least one frequency domain resource in the total bandwidth is determined based on the second position and a first position of the one frequency domain resource, and the total bandwidth is a set of the upper limits of the bandwidths in the plurality of time units for transmitting the first signal.

[0065] In a possible implementation, a location of the one frequency domain resource in the total bandwidth satisfies the following formula:

[0066] wherein, represents a starting location of the one frequency domain resource in the total bandwidth, represents a starting location of the total bandwidth, K TC is a comb size, n b represents an index of the second location, B SRS is a first parameter, represents a number of subcarriers included in the bandwidth upper limit of the one time unit, P represents a first number, and p represents a first location of the one frequency domain resource.

[0067] In a possible implementation, the second location is determined based on a second parameter, and the second parameter indicates an order of the one time unit for transmitting the first signal in the plurality of time units.

[0068] In a possible implementation, the second parameter satisfies the following formula:

[0069] wherein, SRS is a second parameter, is a number of time units included in one frame, n f is a frame number of the one frame, is a number of the one time unit in the one frame, T offset is an offset between a sub-time unit of the one time unit and a starting sub-time unit in the at least one sub-time unit, T SRS is a frequency hopping period of the first signal.

[0070] In a possible implementation, a bandwidth of the one time unit for transmitting the first signal is a partial bandwidth or a whole bandwidth of a bandwidth upper limit of the one time unit for transmitting the first signal.

[0071] In a possible implementation, the measurement information is carried in a channel state information report.

[0072] In a possible implementation, the indication of the sub-time unit of the one time unit for transmitting the first signal further includes an indication of a starting sub-time unit of the one time unit for transmitting the first signal.

[0073] In a possible implementation, a number of sub-time units of at least two time units in the plurality of time units for transmitting the first signal is different; or, a number of sub-time units of any two time units in the plurality of time units for transmitting the first signal is the same.

[0074] In a possible implementation, sizes of bandwidths used by at least two of the plurality of time units for transmitting the first signal are different; or, sizes of bandwidths used by any two of the plurality of time units for transmitting the first signal are the same.

[0075] In a fourth aspect, an embodiment of the present application provides a communication method. The method can be applied to a terminal device side. The content of the terminal device side can refer to the content of the terminal device side discussed in the second aspect, which will not be listed here. The method comprises: transmitting a first signal on a resource, for example, transmitting the first signal to a network device side, wherein the resource comprises a plurality of time units respectively used for transmitting a sub-time unit of the first signal, and a plurality of time units respectively used for transmitting a bandwidth of the first signal, wherein at least two of the plurality of time units have different numbers of sub-time units used for transmitting the first signal, and / or at least two of the plurality of time units have different bandwidths used for transmitting the first signal.

[0076] In a possible implementation, the method further comprises: transmitting measurement information, the measurement information indicating a measurement parameter of a channel between the terminal device side and the network device side, the measurement information being obtained by measuring the first uplink reference signal; and receiving an indication of the resource, wherein the number of sub-time units and the bandwidth used for transmitting the first signal in one time unit are related to the measurement information.

[0077] In a possible implementation, the measurement information comprises information of a channel sparsity corresponding to an upper limit of the bandwidth used for transmitting the first signal in one time unit, wherein: the smaller the channel sparsity, the greater the bandwidth used for transmitting the first signal in one time unit; or, the greater the channel sparsity, the smaller the bandwidth used for transmitting the first signal in one time unit.

[0078] In a possible implementation, the bandwidth used for transmitting the first signal in one time unit is a bandwidth matched with a value range to which the channel sparsity belongs in a first correspondence relationship, wherein: the first correspondence relationship indicates a correspondence relationship between at least one value range of the channel sparsity and at least one bandwidth.

[0079] In a possible implementation, the channel sparsity satisfies the following formula:

[0080] wherein S represents the channel sparsity, r1, r2 and r3 are all real numbers, r3 is greater than r2, r2 is greater than r1, gain max represents a maximum channel gain corresponding to an upper limit of the bandwidth in the one time unit, gain min represents a minimum channel gain corresponding to an upper limit of the bandwidth in the one time unit, gain avgwherein w1 and w2 are real numbers, and w1 is less than w2.

[0081] In a possible implementation, the measurement information comprises information of a path loss of a bandwidth upper limit for transmitting the first signal in one time unit, wherein: the lower the path loss, the more the number of sub-time units in one time unit for transmitting the first signal; or, the higher the path loss, the less the number of sub-time units in one time unit for transmitting the first signal.

[0082] In a possible implementation, the number of sub-time units in one time unit for transmitting the first signal is the number of sub-time units in the second correspondence that matches the value range to which the path loss belongs, wherein: the second correspondence indicates a correspondence between at least one value range of the path loss and at least one number of sub-time units.

[0083] In a possible implementation, the indication of the bandwidth for transmitting the first signal in one time unit comprises: indication of a first number and a first position set of at least one frequency domain resource, wherein the first number represents a total number of frequency domain resources included in the bandwidth upper limit for transmitting the first signal in one time unit, the at least one frequency domain resource is a frequency domain resource for transmitting the first uplink signal in one time unit, and the first position set comprises at least one first position, each of the at least one first position representing a position of one of the at least one frequency domain resource on the bandwidth upper limit for transmitting the first signal in one time unit. Optionally, the frequency domain resource can be a positive integer number of RBs, or a positive integer number of REs, or a resource particle, a resource unit, or a resource element, etc.

[0084] In a possible implementation, the method further comprises: receiving first information from the network device, the first information indicating a second position, the second position being a position of a starting frequency domain resource in the at least one frequency domain resource in the total bandwidth, wherein: the position of one of the at least one frequency domain resource in the total bandwidth is determined based on the second position and the first position of the one of the at least one frequency domain resource, and the total bandwidth is a set of bandwidth upper limits for transmitting the first signal in the plurality of time units.

[0085] In a possible implementation, the position of the one frequency domain resource in the total bandwidth satisfies the following formula:

[0086] wherein, represents a starting position of the one frequency domain resource in the total bandwidth, represents a starting position of the total bandwidth, K TC is a comb size, n ban index representing the second position, B SRS is a first parameter, an index representing a number of subcarriers included in a bandwidth upper limit of the one time unit, P represents the first number, and p represents a first position of the one frequency domain resource.

[0087] In a possible implementation, the second position is determined based on a second parameter, and the second parameter represents an order of the one time unit for transmitting the first signal in the plurality of time units.

[0088] In a possible implementation, the first number satisfies the following formula:

[0089] wherein n SRS is the second parameter, is a number of time units included in the one frame, n f is a frame number of the one frame, is a number of the one time unit in the one frame, T offset is an offset between a sub-time unit of the one time unit and a starting sub-time unit in the at least one sub-time unit, T SRS is a frequency hopping period of the first signal.

[0090] In a possible implementation, a bandwidth of the one time unit for transmitting the first signal is a partial bandwidth or a whole bandwidth of a bandwidth upper limit of the one time unit for transmitting the first signal.

[0091] In a possible implementation, the measurement information is carried in a channel state information report.

[0092] In a possible implementation, indicating the at least one sub-time unit of the one time unit further includes indicating a starting sub-time unit of the one time unit for transmitting the first signal.

[0093] In a possible implementation, a number of sub-time units for transmitting the first signal is different in at least two time units in the plurality of time units; or, a number of sub-time units for transmitting the first signal is the same in any two time units in the plurality of time units.

[0094] In a possible implementation, a size of a bandwidth for transmitting the first signal is different in at least two time units in the plurality of time units; or, a size of a bandwidth for transmitting the first signal is the same in any two time units in the plurality of time units.

[0095] In a fifth aspect, the embodiments of the present application provide a communication device (or communication apparatus). For example, the communication device includes a processing unit (sometimes also referred to as a processing module), and a communication unit (sometimes also referred to as a communication module). The communication unit is configured to perform a transceiving operation, such as functions related to transmitting and receiving; the communication unit can be referred to as a transceiving unit; optionally, the communication unit includes a receiving unit and a transmitting unit. The processing unit is configured to perform a processing operation. Alternatively, the communication unit can be a transmitter and a receiver, or the communication unit is a transmitter and a receiver. Optionally, the communication device further includes a storage unit (sometimes also referred to as a storage module).

[0096] In a first possible implementation, the communication device can be on the network apparatus side of the first aspect described above, for example, can be a network apparatus, or a module (for example, a chip system) configured in the network apparatus. The communication device includes means (or modules) for performing the corresponding functions of the first aspect described above or any possible implementation. For example, the communication unit is configured to receive the measurement information and the indication of the resource for transmitting the first signal.

[0097] The communication apparatus can also implement the content of any possible implementation of the first aspect described above, which will not be listed one by one here.

[0098] In a second possible implementation, the communication device can be on the terminal apparatus side of the first aspect described above, for example, can be a terminal apparatus, or a module (for example, a chip system) configured in the terminal apparatus. The communication device includes means (or modules) for performing the corresponding functions of the first aspect described above or any possible implementation. For example, the communication unit is configured to transmit the measurement information and receive the indication of the resource for transmitting the first signal.

[0099] The communication apparatus can also implement the content of any possible implementation of the second aspect described above, which will not be listed one by one here.

[0100] In a third possible implementation, the communication device can be on the network apparatus side of the third aspect described above, for example, can be a network apparatus, or a module (for example, a chip system) configured in the network apparatus. The communication device includes means (or modules) for performing the corresponding functions of the third aspect described above or any possible implementation. For example, the communication unit is configured to receive the first signal.

[0101] The communication apparatus can also implement the content of any possible implementation of the third aspect described above, which will not be listed one by one here.

[0102] In a fourth possible implementation, the communication device can be a terminal device side of the fourth aspect above, for example, a terminal device side, or a module (for example, a chip system) configured in the terminal device. The communication device includes means or modules for performing the corresponding steps of the fourth aspect above or any possible implementation. For example, the communication unit is configured to send the first signal.

[0103] The communication device can also implement the content of any possible implementation of the fourth aspect above, which is not listed one by one here.

[0104] In a possible design, the communication device is a communication chip, the processing unit can be one or more processors or processor cores, and the communication unit can be an input / output circuit or an input / output interface of the communication chip.

[0105] In a sixth aspect, the present application provides a communication device. The communication device includes one or more processors. The one or more processors can execute computer programs or instructions in a memory, when the computer programs or instructions are executed, the communication device implements the method in the first aspect above, any possible implementation of the first aspect, the second aspect, any possible implementation of the second aspect, the third aspect, any possible implementation of the third aspect, the fourth aspect, or any possible implementation of the fourth aspect.

[0106] Optionally, the communication device can include a memory, in which case the memory can be coupled with the one or more processors, or the memory can be independently disposed relative to the one or more processors. Alternatively, the memory exists independently relative to the communication device.

[0107] In a possible design, the communication device can further include an interface circuit, and the processor is configured to communicate with other devices or components through the interface circuit.

[0108] The communication device above can be a terminal device, or a communication module in the terminal device, or a chip responsible for communication function in the terminal, such as a Modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module. Alternatively, the communication device above can be an access network device, or a module in the access network device.

[0109] In a seventh aspect, an embodiment of the present application provides a communication apparatus. The communication apparatus includes a processor and an interface circuit. The interface circuit is configured to receive a signal from another communication apparatus outside the communication apparatus and transmit the signal to the processor or send a signal from the processor to another communication apparatus outside the communication apparatus. The processor is configured to implement the method in the first aspect, any possible implementation of the first aspect, the method in any possible implementation of the second aspect, the third aspect, any possible implementation of the third aspect, the fourth aspect, or any possible implementation of the fourth aspect by means of a logic circuit or by executing code instructions. The number of processors can be one or more, which is not limited.

[0110] In a specific implementation process, the communication apparatus can be a chip, and the processor can be a transistor, a gate circuit, a flip-flop, and various logic circuits, etc. The specific implementation of the processor is not limited in the embodiments of the present application.

[0111] In an implementation, the communication apparatus can be a wireless communication device, i.e., a computer device supporting wireless communication function. Specifically, the wireless communication device can be a terminal device such as a smart phone, or a network device such as a wireless access network device (e.g., a base station).

[0112] In another implementation, the communication apparatus can be a part of a wireless communication device, such as a system chip or a communication chip, etc. The system chip can also be referred to as a SoC or SoC chip. The communication chip can include a baseband processing chip and a radio frequency processing chip. The baseband processing chip is also sometimes referred to as a modem or a baseband chip. The radio frequency processing chip is also sometimes referred to as a radio frequency transceiver or a radio frequency chip. In a physical implementation, part or all of the chips in the communication chip can be integrated inside the SoC chip. For example, the baseband processing chip is integrated in the SoC chip, and the radio frequency processing chip is not integrated with the SoC chip. The interface circuit can be a radio frequency processing chip in the wireless communication device, and the processor can be a baseband processing chip in the wireless communication device. The interface circuit can be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin, or related circuit on the chip or chip system, etc. The processor can also be embodied as a processing circuit or a logic circuit.

[0113] In yet another implementation, the communication device can be a chip system, which can be composed of a chip or can contain a chip and other discrete devices. The chip system can include, for example, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a CPU, a network processor (NP), a digital signal processor (DSP), a micro controller unit (MCU), a programmable logic device (PLD), or other integrated chip, etc.

[0114] In an eighth aspect, embodiments of the present application provide a communication system.

[0115] In a possible embodiment, the communication system is configured to implement the method according to the first aspect, any of the possible implementation forms of the first aspect, the second aspect, or any of the possible implementation forms of the second aspect. For example, the communication system comprises any of the first possible embodiments of the communication device discussed in the fifth aspect, and any of the second possible embodiments of the communication device discussed in the fifth aspect.

[0116] In a possible embodiment, the communication system is configured to implement the method according to the third aspect, any of the possible implementation forms of the third aspect, the fourth aspect, or any of the possible implementation forms of the fourth aspect. For example, the communication system comprises any of the third possible embodiments of the communication device discussed in the fifth aspect, and any of the fourth possible embodiments of the communication device discussed in the fifth aspect.

[0117] In a ninth aspect, an embodiment of the present application provides a chip system. The chip system comprises a processor. Optionally, the chip system can further comprise an interface (such as a communication interface). The processor can be configured to implement any of the methods in the first aspect and possible implementation, the second aspect and possible implementation, the third aspect and possible implementation, and the fourth aspect and possible implementation. Optionally, the chip system further comprises a memory. The memory is configured to store a computer program (which can also be referred to as code or instruction). The processor is configured to invoke and run the computer program from the memory, so that the device installed with the chip system performs the method in the first aspect, any possible implementation of the first aspect, the method in the second aspect and any possible implementation of the second aspect, the method in the third aspect and any possible implementation of the third aspect, the method in the fourth aspect, or any possible implementation of the fourth aspect. The implementation of the chip system can refer to the content of the chip system involved in the foregoing, which will not be listed here.

[0118] In a tenth aspect, an embodiment of the present application provides a computer readable storage medium. The computer readable storage medium is configured to store a computer program or instruction, which, when executed, implements the method in the first aspect and possible implementation, the method in the second aspect and any possible implementation of the second aspect, the method in the third aspect and any possible implementation of the third aspect, the method in the fourth aspect, or any possible implementation of the fourth aspect.

[0119] In an eleventh aspect, an embodiment of the present application provides a computer program product. When the computer program product is executed, the processor executes the method in the first aspect, any possible implementation of the first aspect, the method in the second aspect and any possible implementation of the second aspect, the method in the third aspect and any possible implementation of the third aspect, the method in the fourth aspect, or any possible implementation of the fourth aspect. The computer program product comprises a computer program and / or instruction, etc.

[0120] For the beneficial effects of any of the technical solutions in the second aspect to the eleventh aspect, refer to the beneficial effects of the corresponding technical solutions in the first aspect, which will not be listed here. BRIEF DESCRIPTION OF DRAWINGS

[0121] FIG. 1 is a schematic diagram of an architecture of a communication system to which embodiments of the present application are applicable;

[0122] FIG. 2 is a schematic diagram of an architecture of another communication system to which embodiments of the present application are applicable;

[0123] FIG. 3 is a schematic diagram of an architecture of an access network device to which embodiments of the present application are applicable;

[0124] FIG. 4 is a schematic diagram of a comb division multiplexing;

[0125] FIG. 5 is a schematic diagram of frequency hopping.

[0126] FIG. 6 is a schematic diagram of a communication method according to an embodiment of the present application;

[0127] FIG. 7 is a schematic diagram of measurement information according to an embodiment of the present application;

[0128] FIG. 8 is a schematic diagram of resources for transmitting a first signal according to an embodiment of the present application;

[0129] FIG. 9 is another schematic diagram of resources for transmitting a first signal according to an embodiment of the present application;

[0130] FIG. 10 is a schematic diagram of at least one sub-time unit according to an embodiment of the present application;

[0131] FIG. 11 is a schematic diagram of sub-band frequency domain positions corresponding to multiple time units according to an embodiment of the present application;

[0132] FIG. 12 is a schematic diagram of another communication method according to an embodiment of the present application;

[0133] FIGS. 13 to 15 are schematic diagrams of three communication apparatuses according to embodiments of the present application. DETAILED DESCRIPTION

[0134] Embodiments of the present application will be described in further detail below with reference to the drawings.

[0135] Embodiments of the present application can be applied to various communication systems including network apparatus sides and terminal apparatus sides. The network apparatus side can refer to a network apparatus itself, or a module in the network apparatus, or a logic module or software capable of realizing all or part of the functions. The terminal apparatus side can refer to a terminal apparatus itself, or a module in the terminal apparatus, or a logic module or software capable of realizing all or part of the functions.

[0136] Various communication systems (or communication networks, or systems, etc.) to which various embodiments of the present application are applicable include, for example, a satellite communication system, a 5th generation (5G) mobile communication system or new radio (NR), a future communication system, a device-to-device (D2D) communication system, a machine to machine (M2M) communication system, an internet of things (IoT) communication system, or other communication systems. The 5G mobile communication system includes a non-standalone (NSA) 5G mobile communication system and / or a standalone (SA) 5G mobile communication system. In addition, various embodiments of the present application can also be applicable to various converged communication systems, such as a converged system of a satellite communication system and a 5G communication system.

[0137] For ease of description, in various embodiments of the present application, the network device side is taken as a network device, and the terminal device side is taken as a terminal device.

[0138] The communication system to which various embodiments of the present application are applicable will be described below with reference to the architecture diagram of the communication system shown in FIG. 1. As shown in FIG. 1, the communication system 1000 includes an access network (AN) 100. Optionally, the communication system can also include a core network 200 and an Internet 300. The access network 100 can include at least one network device (or network equipment, or network side equipment), such as 110a and 110b in FIG. 1. Among them, 110a is a base station, and 110b is a micro station. The communication system 1000 can also include at least one terminal device (or terminal equipment), such as 120a to 120j in FIG. 1. 120a, 120e, 120f and 120j are mobile phones, 120b is a car, 120c is a fuel dispenser, 120d is a home access point (HAP) arranged indoors or outdoors, 120g is a notebook computer, 120h is a printer, and 120i is a drone. The same terminal device or the same network device can provide different functions in different application scenarios. For example, the mobile phones in FIG. 1 are 120a, 120e, 120f and 120j, the mobile phone 120a can access the base station 110a, connect the car 120b, communicate directly with the mobile phone 120e and access the HAP, the car 120b can access the HAP and communicate directly with the mobile phone 120a, the mobile phone 120f can access the micro station 110b, connect the notebook computer 120g, and connect the printer 120h, and the mobile phone 120j can control the drone 120i.

[0139] 1. Network device

[0140] The network device is a network-side device with wireless transceiving function. The network device can be a device, equipment or module with corresponding communication function located at the network side of a communication system. The network device is usually provided with a communication module, circuit or chip for performing corresponding communication function. The network device is also provided with program instructions for performing corresponding communication function and corresponding program instructions. The network device can include a core network device and / or an access network device. The access network device can be a device in a radio access network (RAN) that provides wireless communication function for terminal equipment, which can be referred to as a RAN equipment. The RAN can be an access network in the 3rd generation partnership project (3GPP), such as 4G, 5G or future-oriented communication network. The RAN can also be an open RAN (O-RAN or ORAN), a cloud radio access network (CRAN), or a communication network of two or more of the above networks.

[0141] The RAN equipment can also be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a 5G mobile communication system, a base station in a future mobile communication system or an access node in a WiFi system, etc.

[0142] The RAN equipment can also be a module or unit that completes part of the function of the base station, such as a CU, a distributed unit DU, or a radio unit (RU). The CU and the DU can be separately provided or included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU) or a remote radio head (RRH). Embodiments of the present application do not limit the specific technology and specific equipment form adopted by the network device.

[0143] In the embodiments of the present application, the functions of the network device can also be performed by a module (such as a chip) in the network device, or by a control subsystem containing the functions of the network device. The control subsystem containing the functions of the network device herein can be a control center in the above-mentioned application scenarios such as smart grid, industrial control, intelligent transportation, smart city, etc.

[0144] 2. Terminal device

[0145] The terminal device is a user-side equipment with wireless transceiving function. The terminal device can also be referred to as a terminal equipment, a terminal, a user equipment (UE), a mobile station, a mobile terminal, etc. The terminal equipment can be widely applied in various scenarios, such as device-to-device (D2D) communication, vehicle to everything (V2X) communication, machine-type communication (MTC), internet of things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, remote medical treatment, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiving function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, a mobile station (MS), a subscriber unit, a cellular phone, a smart phone, a wireless data card, a personal digital assistant (PDA) computer, a tablet computer, a wireless modem, a handset, a laptop computer, or a machine type communication (MTC) terminal, etc. The terminal device is usually provided with a communication module, circuit or chip for performing corresponding communication functions, and is also configured with program instructions for performing corresponding communication functions. In various embodiments of the present application, the device for realizing the functions of the terminal device can be a terminal device, or a device capable of supporting the terminal device to realize the functions, such as a chip system or a combination device or component capable of realizing the functions of the terminal device, which can be installed in the terminal device. The embodiments of the present application do not limit the specific technology and specific equipment form adopted by the terminal device.

[0146] In embodiments of the present application, the functions of the terminal device can also be performed by a module (such as a chip or a modem) in the terminal device, or by a device that includes the functions of the terminal device.

[0147] The network device and the terminal device can be fixed in position or mobile. The network device and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can be deployed on water; and can be deployed on aircraft, balloons, and artificial satellites in space. Embodiments of the present application do not limit the application scenarios of the network device and the terminal device.

[0148] The roles of the network device and the terminal device can be relative. For example, the helicopter or the drone 120i in FIG. 1 can be configured as a mobile network device, and for the terminal device 120j that accesses the wireless access network 100 through 120i, the terminal device 120i is a network device; but for the network device 110a, 120i is a terminal device, that is, 110a and 120i communicate through a wireless air interface protocol. Of course, 110a and 120i can also communicate through an interface protocol between network devices and network devices, and in this case, 120i is also a network device relative to 110a. Therefore, the network device and the terminal device can be collectively referred to as a communication device, and 110a and 110b in FIG. 1 can be referred to as a communication device with network device functions, and 120a-120j in FIG. 1 can be referred to as a communication device with terminal device functions.

[0149] The network device and the terminal device, the network device and the network device, and the terminal device and the terminal device can communicate through a licensed spectrum, an unlicensed spectrum, or both a licensed spectrum and an unlicensed spectrum, without limitation.

[0150] FIG. 2 illustrates a communication system to which embodiments of the present application are applicable. FIG. 2 illustrates a possible structure of an access network device. As shown in FIG. 2, the access network device (which can be an eNB or a gNB or a next-generation access network device, for example) communicates with a core network, specifically a core network device in the core network, through a backhaul, and communicates with a terminal device through an air interface.

[0151] For example, the BBU in the access network device communicates with the core network through a backhaul, and the radio unit (RU) in the access network device communicates with at least one UE through an air interface. The BBU communicates with at least one RU through a front haul, and the BBU and the RU can be co-located or not.

[0152] The BBU includes at least one CU and at least one DU, and the CU and the DU can communicate through at least one midhaul.

[0153] The architecture of the access network device can be an open architecture, in which case the access network device can also be referred to as an O-RAN device or an O-RAN device, etc. The open architecture access network device will be introduced below in combination with the architecture of the access network device shown in FIG. 3.

[0154] FIG. 3 specifically illustrates the module function division and protocol layer in the access network device. As shown in FIG. 3, the access network device includes at least one of a CU, a DU, or a RU.

[0155] In some examples, the CU is a logical node that carries the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, the packet data convergence protocol (PDCP) layer, and other control functions of the access network device. The CU is connected to network nodes such as a core network through some interfaces, which can be E2 interfaces or the like.

[0156] Optionally, the CU can have part of the functions of the core network. The CU (e.g., the PDCP layer and higher layers) is connected to the DU (e.g., the radio link control (RLC) layer and lower layers) through some interfaces, which can be F1 interfaces or the like. In some examples, these interfaces (e.g., F1 interfaces) can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). The application protocol of the F1 interface is, for example, F1AP, which defines the signaling procedures of F1 in some examples. The F1 interface supports the control plane F1-C and the user plane F1-U.

[0157] In some examples, the CU can be split into a control unit-control plane (CU-CP) and a control unit-user plane (CU-UP). The CU-CP is a logical node carrying the RRC layer and the PDCP control (C) (which can be abbreviated as PDCP-C) layer, used to implement the control plane function of the CU. The CU-CP can interact with a network element in the core network for implementing the control plane function. The network element in the core network for implementing the control plane function can be an access and mobility function network element, such as an AMF in a 5G system. The AMF network element is used to be responsible for mobility management in the mobile network, such as location updating of the terminal device, registration network of the terminal device, handover of the terminal device, etc.

[0158] The CU-UP is a logical node carrying the SDAP layer and the PDCP user (U) (which can be abbreviated as PDCP-U) layer, used to implement the user plane function of the CU. The CU-UP can interact with a network element in the core network for implementing the user plane function (UPF). The network element in the core network for implementing the user plane function, for example, a User Plane Function (UPF) in a 5G system, is used to be responsible for forwarding and receiving data in the terminal device.

[0159] The above is an example of the configuration of the CU and the DU. The functions of the CU and the DU can be flexibly configured according to requirements. For example, the CU or the DU can be configured to have more protocol layer functions, or the CU or the DU can be configured to have partial processing functions of the protocol layers. For example, part of the functions of the RLC layer and the functions of the protocol layers above the RLC layer are arranged in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are arranged in the DU. For another example, the functions of the CU or the DU can be divided according to the service type or other system requirements, for example, according to the delay. The functions that need to meet the delay requirement of the processing time are arranged in the DU, and the functions that do not need to meet the delay requirement are arranged in the CU.

[0160] In some examples, a DU is a logical node that hosts RLC layer, medium access control (MAC) layer, higher physical layer (Higher PHY) layer, and other functions. In some examples, a DU can control at least one RU. The DU is connected with the RUs through some interfaces, which can be a fronthaul interface. In some examples, the Higher PHY layer includes parts of PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, and other processing functions.

[0161] In some examples, an RU is a logical node that hosts lower physical layer (Lower PHY) and radio frequency (RF) processing.

[0162] In some examples, an RU can be a 3GPP transmission reception point (TRP) or a remote radio head (RRH) or other similar functional entity. In some examples, the Low-PHY includes parts of PHY processing, such as fast Fourier transform (FFT), inverse fast Fourier transformation (IFFT), digital beamforming and filtering, and other processing functions. The RU communicates with one or more UEs through a wireless link.

[0163] The DU and the RU can be co-located or not co-located. The DU and the RU exchange control plane information and user plane information via a lower-layer split CUS-Plane (LLS-CUS / LLS-C / U / S) interface through a fronthaul link. The LLS-CUS can include a LLS-C interface and a LLS-U interface that provide a control plane (C-Plane) and a user plane (U-Plane), respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and the RU. The DU and the RU have a LLS-M interface of the fronthaul link to exchange management information, and the management plane (M-Plane) refers to non-real-time management operations between the DU and the RU. The management plane (M-Plane) can interact with a management system.

[0164] The DU and the RU can cooperate to jointly implement the functions of the PHY layer. One DU can be connected to one or more RUs. The functions of the DU and the RU can be configured in various ways according to design. For example, the DU is configured to implement baseband functions, and the RU is configured to implement radio frequency functions. For another example, the DU is configured to implement high-layer functions in the PHY layer, and the RU is configured to implement low-layer functions in the PHY layer or to implement the low-layer functions and radio frequency functions. The high-layer functions in the PHY layer can include a part of the functions of the PHY layer that are closer to the MAC layer, and the low-layer functions in the PHY layer can include another part of the functions of the PHY layer that are closer to the radio frequency side.

[0165] The CU (or CU-CP and CU-UP), the DU, or the RU can also have different names in different systems, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (Open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. Any of the CU (or CU-CP, CU-UP), the DU, and the RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. The RA device can be a macro base station, a micro base station or an indoor station, or a relay node or a donor node, etc.

[0166] In various embodiments of the present application, the number of nouns means "a singular noun or a plural noun" unless otherwise specified, that is, "one or more". "At least one" means one or more, and "multiple" means two or more. "And / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects. For example, A / B means A or B. "At least one of the following" or the like means any combination of these items, including any combination of single items or multiple items. For example, at least one of a, b, or c means a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple.

[0167] In various embodiments of the present application, the words "exemplary," "for example," "e.g.," etc. are used to mean example, by way of example, or by way of illustration. Any implementation described herein as "exemplary" or "example" is not necessarily to be construed as preferred or advantageous over other implementations. Rather, the use of terms such as "exemplary" or "example" is intended to present concepts in a concrete manner. In various embodiments of the present application, "of", "corresponding / relevant", and "corresponding" can be used interchangeably, and it should be noted that they express the same meaning when no emphasis is put on their difference.

[0168] In various embodiments of the present application, "indication" can include direct indication, indirect indication, display indication, or implicit indication. When it is described that certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A. In the present application, the information indicated by the indication information is referred to as the to-be-indicated information. In the process of specific implementation, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or an index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, where the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be indicated only in part, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can also be achieved by means of the pre-agreed (for example, the protocol stipulates) arrangement order of various information, thereby reducing the indication overhead to a certain extent. In addition, the to-be-indicated information can be sent as a whole, or can be sent separately in multiple sub-information, and the sending period and / or sending opportunity of these sub-information can be the same or different.

[0169] In various embodiments of the present application, "sending" and "receiving" represent the direction of signal transmission. For example, "sending information to XX" can be understood as that the destination of the information is XX, which can include direct sending through the air interface, or indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as that the source of the information is YY, which can include direct receiving from YY through the air interface, or indirect receiving from YY through the air interface from other units or modules. "Sending" can also be understood as "output" of a chip interface, and "receiving" can also be understood as "input" of a chip interface. In other words, sending and receiving can be carried out between devices, for example, between network devices and terminal devices, or can be carried out within a device, for example, between components, between modules, between chips, between software modules or hardware modules in a device through a bus, a wire or an interface.

[0170] Hereinafter, some terms related to the embodiments of the present application are explained. These explanations are not intended to be strict definitions of the terms in the scope of protection claimed by the present application, but are provided to support the meanings of the terms and to make the embodiments of the present application more understandable.

[0171] 1、reference signal (RS)

[0172] It can also be called pilot signal or pilot, for example, a signal provided by the transmitting end to the receiving end for channel estimation, channel sounding or data demodulation, etc. The reference signal can include uplink reference signal and downlink reference signal. The uplink reference signal is, for example, demodulation reference signal (DMRS) or sounding reference signal (SRS). The DMRS can include, for example, DMRS for physical uplink control channel (PUCCH) demodulation (which can be referred to as DMRS for PUCCH) and DMRS for physical uplink share channel (PUSCH) demodulation (which can be referred to as DMRS for PUSCH), phase tracking reference signal (PTRS). The downlink reference signal is, for example, channel state information-reference signal (CSI-RS), cell-specific reference signal (C-RS / CRS), or positioning reference signal (P-RS / PRS). It should be understood that there are many reference signals, and as the standard evolves, the names of the above-mentioned reference signals may change, and more reference signals may appear, which are not specifically limited. The SRS can be SRS for beam management, SRS for codebook-based uplink transmission, SRS for non-codebook-based uplink transmission, or SRS for antenna selection, which are not specifically limited.

[0173] The first signal related to the embodiments of the present application can be, for example, an uplink reference signal such as the SRS described above, or other non-reference uplink signal (or channel) such as PUCCH, PUSCH, physical random access channel (PRACH) or other uplink signals, etc.

[0174] 2、Full band and sub-band

[0175] Full band refers to the entire frequency range used for signal transmission, for example, the spectrum occupied when transmitting a signal. A sub-band refers to a smaller frequency range in the full band. A full band can be divided into multiple sub-bands.

[0176] 3、Resource

[0177] It includes time domain resources and / or frequency domain resources.

[0178] 3-1、Time domain resource

[0179] It includes symbols, slots, mini-slots, partial slots, sub-frames, radio frames (or frames), or sensing slots, etc. A symbol is, for example, an orthogonal frequency division multiplexing (OFDM) symbol.

[0180] A slot can include at least one symbol, for example, 14 symbols, or 12 symbols. A slot can have different slot types, and different slot types include different numbers of symbols, such as a mini-slot containing less than 7 symbols, 2 symbols, 3 symbols, 4 symbols, etc., a normal slot containing 7 symbols or 14 symbols, etc.

[0181] The length of each symbol can be different according to different subcarrier spacings, so the length of a slot can be different. For example, a 15 kHz subcarrier spacing corresponds to a slot length of 0.5 ms, a 60 kHz subcarrier spacing corresponds to a slot length of 0.125 ms, and so on.

[0182] A slot is a time unit in the fifth generation (5G) mobile communication system. thIn a new radio (NR) system of the fifth generation (5G), a slot is a basic time unit in the radio frame structure, which contains a series of OFDM symbols. The length of the slot can vary according to different subcarrier spacing (SCS) to support different use cases and requirements, such as enhanced mobile broadband (eMBB) or ultra reliable and low latency communication (URLLC). In 5G NR, the flexibility of slot length is the key to realize network dynamic scheduling and optimize resource allocation. For example, a slot can be composed of 14 OFDM symbols, but the number and duration of slots can be adjusted to meet the delay and transmission requirements of specific services under specific SCS.

[0183] A symbol refers to a symbol period in an OFDM system, which is the smallest time unit for transmitting data. A symbol contains modulated data on multiple subcarriers. OFDM transmits data by dividing a wideband channel into multiple orthogonal narrowband subcarriers, each of which can independently carry modulated data. In 5G NR, the length of a symbol depends on the subcarrier spacing. The larger the subcarrier spacing, the shorter the symbol period, which can reduce inter-symbol interference caused by multipath propagation and adapt to rapidly changing wireless environments.

[0184] The time unit involved in the embodiments of the present application can be understood as a unit of time domain resource, or can be understood as a division unit of time domain resource, etc. A time unit includes multiple sub-time units, for example, the time unit is a slot, and the sub-time unit is a symbol. For another example, the time unit is a mini-slot, and the sub-time unit is a symbol, etc.

[0185] 3-2, Frequency domain resource

[0186] The unit of frequency domain resource can be a frequency domain unit, or the frequency domain resource can be divided into one or more frequency domain units. The frequency domain unit includes, for example, a band, a carrier, a bandwidth part (BWP), a sub-band, a resource block (RB), a resource element (RE) (or resource particle, resource unit or resource element), or a sub-channel, etc.

[0187] A sub-band includes one or more RBs. The RB is the fifth generation (5 thA resource block (RB) is a basic unit for frequency domain resource allocation in a new radio (NR) system, such as a 5th generation (5G) NR system. An RB is composed of a certain number of subcarriers, which span a portion of the symbols or all of the symbols in a slot. In a given slot, the network can allocate one or more RBs for data transmission.

[0188] For example, an RB contains 12 subcarriers with subcarrier spacing ranging from 15 kilohertz (kHz) to 240 kHz. The subcarrier spacing can be designed according to different scenarios and requirements, etc., thus allowing the network to flexibly adapt to different quality of service (QoS) requirements and user experience needs. The concept of RB is to optimize and simplify the allocation of wireless resources. In 5G NR, the network can allocate one or more RBs to a user according to the user's data needs. This allocation can be dynamic or semi-static, depending on the user's mobility and service requirements.

[0189] An RE is the most basic unit in 5G NR that constitutes a physical layer transmission. Each RE corresponds to one subcarrier in the frequency domain and one symbol in the time domain. In simple terms, an RE is a time-frequency grid in which a modulated data symbol or a reference signal can be transmitted. For example, SRS is transmitted through a set of specific resource elements, which are organized in one or more slots and span several subcarriers. Such a configuration allows SRS to cover the entire bandwidth, providing full-band channel information. The configuration of SRS (i.e., the resource elements it occupies) is defined by higher layer signaling and can be dynamically changed to adapt to different network conditions and user needs.

[0190] A subchannel is the smallest unit of frequency domain resources occupied by a physical sidelink shared channel, and a subchannel can include one or more resource blocks (RBs). The bandwidth of a wireless communication system in the frequency domain can include multiple RBs, for example, in the various possible bandwidths of an LTE system, the physical resource blocks (PRBs) included can be 6, 15, 25, 50, etc.

[0191] 4、Bandwidth and bandwidth cap

[0192] Bandwidth can also be referred to as actual bandwidth, actual transmission bandwidth, or actual measurement bandwidth, etc., without limitation on its name. Bandwidth refers to the frequency range of the spectrum occupied by a signal in the frequency domain. The size of the bandwidth refers to the width of the signal occupied in the frequency domain. The size of the bandwidth can be the difference between the frequency of the start position of the bandwidth in the frequency domain and the end position of the bandwidth in the frequency domain.

[0193] The size of the bandwidth can be represented in various ways. For example, the size of the bandwidth can be represented by a frequency width. For example, the size of the bandwidth used for transmitting the first signal in a time slot is 1 megahertz (MHz), that is, 1 MHz of the time slot is used for transmitting the first signal.

[0194] For another example, the size of the bandwidth can also be represented by the number of frequency units. For example, the size of the bandwidth actually used for transmitting the first signal in a time slot is 24 subcarriers, or 2 RBs, or 1 subband, etc.

[0195] The size of the bandwidth used for transmitting the signal in a time unit is less than or equal to the upper limit of the bandwidth used for transmitting the signal in the time unit, or the size of the bandwidth used for transmitting the signal in a time unit is part or all of the upper limit of the bandwidth used for transmitting the signal in the time unit.

[0196] The upper limit of the bandwidth can also be referred to as the maximum measurement bandwidth, the measurement bandwidth, the maximum bandwidth, or the upper limit of the bandwidth, etc. The upper limit of the bandwidth refers to the maximum bandwidth or the maximum frequency range used for transmitting the signal. For example, the upper limit of the bandwidth used for transmitting the first signal in a time unit can be understood as the maximum frequency range used for transmitting the first signal in the time unit. For example, the upper limit of the bandwidth used for transmitting the first signal in a time unit is 24 RBs, that is, at most 24 RBs of the time unit are used for transmitting the first signal.

[0197] The size of the bandwidth used for transmitting the signal in the two time units related by the embodiments of the present application can be the same, but the starting position and / or the ending position of the two bandwidths in the frequency domain can be different. Similarly, the size of the upper limit of the bandwidth used for transmitting the signal in the two time units related by the embodiments of the present application can be the same, but the starting position and / or the ending position of the two bandwidths in the frequency domain can be different.

[0198] 5. Channel measurement (or estimation)

[0199] The terminal device can send a reference signal to the network device, and the network device measures the channel based on the reference signal. Similarly, the network can also send a reference signal to the terminal device, and the terminal device measures the channel based on the reference signal.

[0200] In a time-division duplexing (TDD) system, based on the assumption of uplink and downlink channel reciprocity, SRS can be used to measure the uplink channel. The terminal device sends SRS to the network device, and the network device measures the uplink channel by receiving these signals.

[0201] 6. Comb division multiplexing

[0202] The signals of the plurality of terminal devices can be sent on different frequency domain resources on the same symbol of the same time slot. The frequency domain resources occupied by the plurality of terminal devices in the frequency domain can be distinguished by configuring different comb patterns. For example, the comb pattern can cause the signal of a certain terminal device to be mapped every one or more subcarriers, thereby forming a comb-shaped spectral distribution. The comb size is used to represent the number of subcarriers that a certain terminal device is spaced. The comb size can be referred to as comb size, comb number, or comb spacing, and the name is not limited. For example, the comb size is 2, which means that the terminal device transmits signals every 2 subcarriers in a symbol.

[0203] Please refer to FIG. 4 for a schematic diagram of comb multiplexing. FIG. 4 shows a schematic diagram of UE1 and UE2 comb multiplexing the frequency domain resources in a symbol. As shown in FIG. 4, the comb size of UE1 is 2, and the comb size of UE2 is also 2. Specifically, UE1 uses the 1st, 3rd, 5th, 7th, 9th, and 11th subcarriers in the symbol to transmit signals, and UE2 uses the 2nd, 4th, 6th, 8th, 10th, and 12th subcarriers in the symbol to transmit signals.

[0204] 7. Code division multiplexing

[0205] It is to distinguish different original signals by different encoding. For example, the signals on different ports can occupy the same resource, and be distinguished by the cyclic shift of the signals on different ports. For example, in the resource mapping process of the physical layer, the SRS frequency domain sequence is mapped to the corresponding resource particle according to the time-frequency position allocated by the related parameters, and then converted (such as IFFT) to form a symbol in the time domain. The Zadoff-Chu (ZC) sequence has good constant amplitude zero auto correlation (CAZAC) characteristics, so the same ZC sequence can be used to distinguish different phase rotations (cyclic shifts in the time domain) on the same RE.

[0206] 8. Wideband SRS transmission

[0207] By transmitting one wideband SRS, the full band of SRS (may also be referred to as the whole target band) is covered at one time. The advantage of this method is that the information of the full band of SRS can be reported to the network device by one SRS transmission. For example, the 1st, 2nd or 4th symbol in the last 6 symbols of a subframe can be used to transmit SRS, which can be a wideband SRS or a narrowband SRS. The symbols used to transmit SRS cannot be used to transmit uplink data. Therefore, from the perspective of resource utilization, the wideband SRS transmission uses fewer symbols to detect the entire bandwidth, and is therefore more efficient.

[0208] 9. Narrowband SRS frequency hopping transmission

[0209] By transmitting multiple narrowband SRSs and hopping in the frequency domain, the continuously transmitted SRSs are then combined to cover the entire full band of SRS. This method is more advantageous in the case of high uplink path loss, because wideband SRS transmission can result in a relatively low power spectral density (PSD). The power spectral density can be expressed as the power per RB, and the power per RB = total symbol power / number of RBs included in each hopping bandwidth. Narrowband SRS transmission allows the limited transmit power to be concentrated in a narrow frequency range, and the signal gain can be improved by frequency hopping, thereby improving the accuracy of channel estimation.

[0210] 10. Frequency hopping

[0211] In 5G NR, especially in the wideband scenario, due to the limitation of terminal device power consumption, the terminal device can not be able to transmit SRS covering the entire bandwidth at one time. Therefore, SRS frequency hopping allows the terminal device to transmit SRS of different frequency parts at different time instances, so that the terminal device can poll the entire bandwidth by time segmentation under the condition of limited power consumption. The more the number of frequency hopping, the fewer the RBs occupied by each frequency hopping, and the higher the power spectral density of the signal.

[0212] Frequency hopping is usually measured in time slots, i.e. a time slot measures a certain bandwidth, which is referred to as inter-time-slot frequency hopping. It can also be measured in symbols, and multiple frequency hopping can be achieved in a time slot by network device configuration, which is referred to as intra-time-slot frequency hopping.

[0213] Please refer to FIG. 5 for a schematic diagram of frequency hopping. The horizontal axis in FIG. 5 represents time, and the vertical axis represents subband. FIG. 5 (1) illustrates an inter-time-slot frequency hopping. As shown in FIG. 5 (1), SRS is transmitted on subband 0 of time slot 0, SRS is transmitted on subband 1 of time slot 1, and SRS is transmitted on subband Su of time slot T. Each time slot hops only once. T and Su are both positive integers.

[0214] It can be seen that the inter-slot frequency hopping is to hop in the frequency domain with the sub-band as the minimum unit, and the flexibility of the transmitted signal is poor.

[0215] In the inter-slot frequency hopping shown in (2) of FIG. 5, the SRS is transmitted on the sub-band 0 of the first symbol in the time slot 0, the SRS is transmitted on the sub-band 1 of the second symbol in the time slot 0, the SRS is transmitted on the sub-band 2 of the third symbol in the time slot 0, the SRS is transmitted on the sub-band 3 of the fourth symbol in the time slot 0, the SRS is transmitted on the sub-band 4 of the first symbol in the time slot 1, the SRS is transmitted on the sub-band 5 of the second symbol in the time slot 1, the SRS is transmitted on the sub-band 6 of the third symbol in the time slot 1, the SRS is transmitted on the sub-band 7 of the fourth symbol in the time slot 1, the SRS is transmitted on the sub-band (Su-3) of the first symbol in the time slot T, the SRS is transmitted on the sub-band (Su-2) of the second symbol in the time slot T, the SRS is transmitted on the sub-band (Su-1) of the third symbol in the time slot T, and the SRS is transmitted on the sub-band Su of the fourth symbol in the time slot T. Each time slot hops four times.

[0216] It can be seen that, compared with the inter-slot frequency hopping, the intra-slot frequency hopping is compressed in time, but not compressed in the frequency domain. That is, the intra-slot frequency hopping is still to hop in the frequency domain with the sub-band as the minimum unit, and the flexibility of the transmitted signal is poor.

[0217] Based on this, the embodiment of the present application provides a communication scheme, in which the number of sub-time units for transmitting the first signal in one time unit of the plurality of time units and / or the bandwidth for transmitting the first signal in the time unit is determined based on the measurement information. In this way, the bandwidth for transmitting the first signal and / or the number of sub-time units in each time unit is flexible and variable, which is beneficial to improve the flexibility of the resource for transmitting the first signal, and the bandwidth for transmitting the first signal and / or the number of sub-time units in one time unit is flexible and variable and related to the measurement information, which is beneficial to reduce the minimum occupied resource for transmitting the first signal at a time, improve the power spectral density of the first signal, and on the other hand, the determined bandwidth and / or the number of sub-time units are more in line with the communication demand of the terminal device and the network device, thereby ensuring the communication quality between the terminal device and the network device. Further, in the case where the first signal is used for measuring the channel, it is beneficial to improve the accuracy of the network device in measuring the channel based on the first signal. In addition, the resource occupied by the first signal at a time can be less, and the multiplexing capability of the wireless resource can be enhanced, so as to increase the number of users in the wireless resource multiplexing.

[0218] The communication scheme provided by the embodiments of the present application will be described below with reference to the drawings. In the drawings corresponding to the various embodiments of the present application, the steps indicated by dashed lines are optional steps. In addition, the network device involved in the various embodiments of the present application may be, for example, the network device (e.g., a base station) involved in FIG. 1, the access network device or core network device involved in FIG. 2, or the access network device involved in FIG. 3. The terminal device may be, for example, the terminal device involved in FIG. 1 or the terminal device involved in FIG. 2. In addition, with the continuous evolution of standards, the names and / or functions of devices may change, which is not limited.

[0219] FIG. 6 is a schematic diagram of a communication method provided by an embodiment of the present application. The various steps involved in FIG. 6 will be described below.

[0220] S601, the terminal device sends measurement information to the network device. Correspondingly, the network device receives the measurement information from the terminal device. The measurement information indicates a measurement parameter of a channel between the terminal device and the network device.

[0221] The channel refers to a channel between the terminal device and the network device. The measurement information indicates or reflects a measurement parameter (or parameter, or information, or feature, or measurement result) of the channel, etc.

[0222] For example, the network device sends a first reference signal to the terminal device, where the first reference signal is, for example, a downlink reference signal. The terminal device measures the first reference signal to obtain the measurement information. In this case, the measurement information indicates a measurement parameter of a downlink channel. However, due to the reciprocity of the uplink channel and the downlink channel, the measurement information also indicates a measurement parameter of an uplink channel. The measurement parameter indicated by the measurement information can include at least one of a received power of the first reference signal (e.g., a reference signal receiving power (RSRP)), a path loss of the first reference signal transmission, or a channel state information (CSI). The measurement information can include the content of A1 and / or A2, which will be described below.

[0223] A1, the measurement information includes information of channel sparsity. Correspondingly, the measurement parameter includes channel sparsity.

[0224] The channel sparsity indicates the condition of the channel, the condition of channel gain variation, the condition of channel power variation, or the condition of channel spectral density variation, etc. The channel gain describes the enhancement or attenuation of a signal in the transmission process. The channel gain can be represented by the increase or decrease of the power of the signal.

[0225] For example, the smaller the value of the channel sparsity is, the flatter the channel is, or the smaller the channel gain variation is, or the smaller the channel power variation is, or the smaller the channel spectral density variation is; the larger the value of the channel sparsity is, the less flat the channel is, or the larger the channel gain variation is, or the larger the channel power variation is, or the larger the channel spectral density variation is.

[0226] The channel sparsity can include channel sparsities of different granularities, or in other words, the channel sparsity can be divided into channel sparsities of different granularities, which are introduced below in combination with A1-1 or A1-2.

[0227] A1-1, the granularity is full band, and the channel sparsity includes the channel sparsity corresponding to the full band. The full band here can be the full band used for transmitting the first reference signal, and since the uplink channel and the downlink channel are reciprocal, the full band can also be regarded as the full band used for transmitting the first signal. Correspondingly, the measurement information includes the information of the channel sparsity corresponding to the full band. Under A1-1, the terminal device sending the measurement information is equivalent to the terminal device reporting the measurement information in units of full band.

[0228] For example, if the value of at least one bit in the measurement information is 1, it indicates that the channel sparsity corresponding to the full band is relatively dense; if the value of at least one bit in the measurement information is 0, it indicates that the channel sparsity corresponding to the full band is relatively sparse. For another example, if the value of at least one bit in the measurement information is 01, it indicates that the channel sparsity corresponding to the full band is relatively sparse; if the value of at least one bit in the measurement information is 10, it indicates that the channel sparsity corresponding to the full band is moderate; if the value of at least one bit in the measurement information is 11, it indicates that the channel sparsity corresponding to the full band is relatively dense.

[0229] A1-2, the granularity is sub-band, and the channel sparsity includes the channel sparsity corresponding to at least one sub-band. The at least one sub-band here can be obtained by dividing the full band used for transmitting the first reference signal. Correspondingly, the measurement information includes the information of the channel sparsity corresponding to the at least one sub-band. Under A1-2, the terminal device sending the measurement information is equivalent to the terminal device reporting the measurement information in units of sub-band.

[0230] Since the uplink channel and the downlink channel are reciprocal, the frequency range of the at least one sub-band can actually include the frequency range of the bandwidth upper limit of at least one time unit respectively used for transmitting the first signal, or in other words, the at least one sub-band includes the bandwidth upper limit corresponding to the at least one time unit. Correspondingly, the channel sparsity corresponding to the at least one sub-band includes the channel sparsity corresponding to the bandwidth upper limit of the at least one time unit.

[0231] The part or all of the sub-time units in each of the plurality of time units are used for transmitting (or sending, or receiving) the first signal, or can be described as the plurality of time units being used for transmitting the first signal, or can be described as the first signal occupying the part or all of the sub-time units in each of the plurality of time units to transmit the first signal. The time unit, the sub-time unit, and the content of the first signal can refer to the time unit, the sub-time unit, and the content of the first signal discussed above, which will not be listed here. The first signal is, for example, an SRS. The upper limit of the bandwidth of any time unit used for transmitting the first signal can be referred to as the upper limit of the bandwidth of the time unit. The upper limit of the bandwidth of the time unit represents the maximum bandwidth used for transmitting the first signal on the time unit. The content of the upper limit of the bandwidth can refer to the content of the upper limit of the bandwidth discussed above, which will not be listed here. The set of the upper limit of the bandwidth of the plurality of time units used for transmitting the first signal can be the full bandwidth of the first signal, that is, the upper limit of the bandwidth of a certain time unit used for transmitting the first signal is part of the full bandwidth of the first signal.

[0232] Optionally, the starting frequency domain position used for transmitting the first signal on at least two time units in the plurality of time units is different, or it can be described that the starting position used for transmitting the first signal on at least two time units in the frequency domain is different, or it can be described that the transmission manner (or transmission mode) of the first signal on the plurality of time units is frequency hopping transmission, or the first signal is frequency-hopped transmitted on the plurality of time units, or it can be described that the first terminal device performs first-level frequency hopping on the plurality of time units. The starting frequency domain position used for transmitting the first signal on a certain time unit can be understood as the position of the frequency domain used for transmitting the first signal on the time unit. Optionally, the starting frequency domain position used for transmitting the first signal on any two time units in the plurality of time units is different.

[0233] For example, the time unit is a slot, and the plurality of time units includes slot 0, slot 1, and slot 2. The starting frequency domain position used for transmitting the first signal on slot 0 is, for example, the 2nd RB, the starting frequency domain position used for transmitting the first signal on slot 1 is the 5th RB, and the starting frequency domain position used for transmitting the first signal on slot 2 is the 7th RB. As can be seen, the starting frequency domain positions used for transmitting the first signal on slot 0, slot 1, and slot 2 are all different.

[0234] For ease of description, the following will take the channel sparsity corresponding to the upper limit of the bandwidth on the first time unit in at least one time unit as an example for introduction. The first time unit involved in various embodiments of the present application can refer to any time unit in the plurality of time units, or can refer to each time unit in the plurality of time units. That is, the first time unit in various embodiments of the present application can be replaced by any time unit or each time unit.

[0235] The following takes the channel sparsity corresponding to the bandwidth upper limit of the first time unit as an example, and lists a formula for determining the channel sparsity.

[0236] Optionally, a formula for calculating the channel sparsity can refer to the content of the following formula (1).

[0237] Wherein, S represents the channel sparsity, r1, r2 and r3 are all real numbers, r3 is greater than r2, r2 is greater than r1, gain max represents the maximum channel gain corresponding to the bandwidth upper limit of the one time unit, gain min represents the minimum channel gain corresponding to the bandwidth upper limit of the one time unit, gain avg represents the average channel gain corresponding to the bandwidth upper limit of the one time unit, w1 and w2 are both real numbers, w1 is less than w2. For example, r1, r2 and r3 in formula (1) can be 1, 2 and 3 respectively, and w1 and w2 can be 1.5 and 2 respectively.

[0238] In the case of calculating the channel sparsity by using the above formula (1), if the value of the channel sparsity is greater, the power spectrum density corresponding to the bandwidth upper limit of the first time unit is flatter, and if the value of the channel sparsity is smaller, the power spectrum density corresponding to the bandwidth upper limit of the first time unit is less flat.

[0239] Optionally, the measurement information can be in the form of a bit sequence, a bitmap, a pattern, a table or a table index, indicating the channel sparsity, and its form is not specifically limited. For example, the measurement information in the form of a bit sequence indicates the channel sparsity corresponding to the bandwidth upper limit of each time unit in the plurality of time units. Specifically, for example, each bit in at least one bit in the measurement information can be used to indicate the channel sparsity corresponding to the bandwidth upper limit of one time unit in the plurality of time units.

[0240] For example, please refer to FIG. 7, which is an example of measurement information provided by an embodiment of the present application. FIG. 7 shows the channel spectrum density (such as the power spectrum density of the channel), and the channel sparsity corresponding to the channel spectrum density. In addition, as shown in FIG. 7, at least one bit in the measurement information is: 11100011000011100. Wherein "1" means not sparse, and "0" means sparse. Then the measurement information indicates that the channel sparsity corresponding to the bandwidth upper limit of the plurality of time units is respectively: channel not sparse, channel not sparse, channel not sparse, channel sparse, channel sparse, channel sparse, channel not sparse, channel not sparse, channel sparse, channel sparse, channel sparse, channel sparse, channel not sparse, channel not sparse, channel not sparse, channel sparse, channel sparse.

[0241] A2, the measurement information includes information of a signal path loss. Correspondingly, the measurement parameter includes the signal path loss.

[0242] The signal path loss can be obtained by the terminal device measuring the first reference signal. Correspondingly, the signal path loss can be the path loss of the first reference signal transmission. Due to the reciprocity of the uplink channel and the downlink channel, the signal path loss can actually be the path loss of the first signal transmission. The signal path loss can be referred to as path loss, path loss, etc., and its name is not limited. The signal path loss refers to the loss caused by space propagation. For example, the smaller the value of the signal path loss, the flatter the channel, or the smaller the gain loss of the channel, or the smaller the power loss of the channel, or the smaller the spectral density loss of the channel; the larger the value of the signal path loss, the more uneven the channel, or the larger the gain loss of the channel, or the larger the power loss of the channel, or the larger the spectral density loss of the channel.

[0243] The signal path loss can include different granularities of path loss, or in other words, the signal path loss can be divided into different granularities of path loss, which will be introduced below in combination with A2-1 or A2-2.

[0244] A2-1, the granularity is full band, and the signal path loss includes the signal path loss corresponding to the full band. The full band here can be the full band used for transmitting the first reference signal, and due to the reciprocity of the uplink channel and the downlink channel, the full band can also be regarded as the full band for transmitting the first signal. Correspondingly, the measurement information includes information of the signal path loss corresponding to the full band. Under A2-1, the terminal device sending the measurement information is equivalent to the terminal device reporting the measurement information in units of full band.

[0245] For example, the value of at least one bit in the measurement information is 1, indicating that the corresponding signal path loss in the full band is high; the value of at least one bit in the measurement information is 0, indicating that the signal path loss corresponding to the full band is low. For example, the value of at least one bit in the measurement information is 01, indicating that the signal path loss corresponding to the full band is low; the value of at least one bit in the measurement information is 10, indicating that the signal path loss corresponding to the full band is medium; the value of at least one bit in the measurement information is 11, indicating that the signal path loss corresponding to the full band is high.

[0246] A2-2, the granularity is sub-band, and the signal path loss includes the signal path loss corresponding to at least one sub-band respectively. Correspondingly, the measurement information includes information of the signal path loss corresponding to at least one sub-band respectively. Under A2-2, the terminal device sending the measurement information is equivalent to the terminal device reporting the measurement information in units of sub-band.

[0247] The at least one sub-band includes a bandwidth upper limit corresponding to a plurality of time units respectively. Correspondingly, the signal path loss can include the signal path loss corresponding to the bandwidth upper limit corresponding to at least one time unit respectively.

[0248] Optionally, the measurement information can be in the form of a bit sequence, a bitmap, a pattern, a table or a table index, and the form is not limited. For example, the measurement information indicates the path loss corresponding to the bandwidth upper limit of each time unit in the plurality of time units in the form of a bit sequence. For example, each bit in at least one bit in the measurement information can be used to indicate the path loss corresponding to the bandwidth upper limit of a time unit in the plurality of time units.

[0249] Please continue as shown in FIG. 7, FIG. 7 also shows the path loss of the first signal corresponding to the channel spectrum density. At least one bit in the measurement information is: 11100010111101100, wherein "1" represents low path loss, and "0" represents high path loss. Then the measurement information indicates that the path loss of the first reference signal transmission in the bandwidth upper limit of the plurality of time units is: low path loss, low path loss, low path loss, high path loss, high path loss, high path loss, low path loss, high path loss, low path loss, low path loss, low path loss, low path loss, high path loss, low path loss, low path loss, high path loss, high path loss.

[0250] Optionally, the measurement information is carried in dedicated signaling or in channel state information report (CSI report), and the form is not limited. The terminal device can periodically report the measurement information, or report the measurement information after measurement, or report the measurement information when the network device requests the terminal device to report the measurement information, and the timing of reporting is not limited.

[0251] S602, the network device indicates the resource for transmitting the first signal to the terminal device. Correspondingly, the terminal device receives the resource for transmitting the first signal indicated by the network device. S602 can also be described as: the network device sends an indication of the resource for transmitting the first signal to the terminal device, and correspondingly, the terminal device receives the indication of the resource for transmitting the first signal from the network device.

[0252] The resource includes at least one sub-time unit of one time unit in a plurality of time units, and a bandwidth for transmitting the first signal on the one time unit. The number and / or the bandwidth of the at least one sub-time unit is determined based on the measurement information. The at least one sub-time unit refers to a sub-time unit of the one time unit for transmitting the first signal. Hereinafter, the one time unit is still taken as an example of the first time unit. That is, the resource includes at least one sub-time unit of the first time unit, and a bandwidth for transmitting the first signal on the first time unit. The at least one sub-time unit is used for transmitting the first signal, or in other words, the sub-time unit of the first time unit for transmitting the first signal includes the at least one sub-time unit. For ease of description, the bandwidth for transmitting the first signal on the first time unit is referred to as the bandwidth on the first time unit or the bandwidth of the first time unit. The bandwidth of the first time unit is less than or equal to an upper limit of the bandwidth of the first time unit for transmitting the first signal.

[0253] The network device can determine the bandwidth on the first time unit and / or the number of the at least one sub-time unit based on the measurement information.

[0254] The content of the measurement information is different, and the way of determining the bandwidth on the first time unit and the number of the at least one sub-time unit is also different, which is introduced respectively as follows.

[0255] B1, the measurement information includes information of a channel sparsity corresponding to an upper limit of the bandwidth on the first time unit, and then the network device determines the bandwidth on the first time unit according to the information of the channel sparsity corresponding to the upper limit of the bandwidth on the first time unit.

[0256] The greater the channel sparsity, the smaller the bandwidth on the first time unit determined by the network device, and / or the smaller the channel sparsity, the greater the bandwidth on the first time unit determined by the network device. Or it can be described that the bandwidth on the first time unit is inversely related to the value of the channel sparsity.

[0257] For example, the network device can determine the bandwidth corresponding to the value range to which the channel sparsity corresponding to the upper limit of the bandwidth of the first time unit belongs in the first correspondence relationship as the bandwidth of the first time unit. The first correspondence relationship indicates the correspondence between at least one value range of the channel sparsity and at least one bandwidth.

[0258] Please refer to Table 1 below for an example of a first correspondence relationship provided by an embodiment of the present application. In Table 1, the values of r1, r2 and r3 in formula (1) are taken as 1, 2 and 3 respectively for example.

[0259] Table 1

[0260] As shown in Table 1 above, if the value of the channel sparsity corresponding to the bandwidth upper limit of the first time unit is 1, the network device can determine that the bandwidth of the first time unit is 24 RBs. If the value of the channel sparsity corresponding to the bandwidth upper limit of the first time unit is 2, the network device can determine that the bandwidth of the first time unit is 12 RBs. If the value of the channel sparsity corresponding to the bandwidth upper limit of the first time unit is 3, the network device can determine that the bandwidth of the first time unit is 6 RBs.

[0261] B2, the measurement information includes information of a channel path loss corresponding to the bandwidth upper limit of the first time unit, the network device determines the number of at least one sub-time unit according to the information of the channel path loss corresponding to the bandwidth upper limit of the first time unit. For example, the number of at least one sub-time unit can be represented as R, and R can also be understood as the number of frequency hopping within the first time unit.

[0262] The smaller the absolute value of the channel path loss corresponding to the bandwidth upper limit of the first time unit, the more the number of at least one sub-time unit determined by the network device, i.e., the more the number of sub-time units for transmitting the first signal in the first time unit. And / or, the larger the absolute value of the channel path loss corresponding to the bandwidth upper limit of the first time unit, the less the number of at least one sub-time unit determined by the network device, i.e., the less the number of sub-time units for transmitting the first signal in the first time unit. Or it can be described that the absolute value of the channel path loss corresponding to the bandwidth upper limit of the first time unit is inversely related to the value of at least one sub-time unit.

[0263] For example, the network device determines the number of sub-time units matched with the value range of the channel path loss corresponding to the bandwidth upper limit of the first time unit in the second correspondence relationship as the number of at least one sub-time unit. The second correspondence relationship indicates the correspondence between at least one value range of the channel path loss and at least one number of sub-time units.

[0264] Please refer to Table 2 below for an example of a second correspondence relationship provided by an embodiment of the present application.

[0265] Table 2

[0266] As shown in Table 2 above, if the value of the path loss corresponding to the bandwidth upper limit of the first time unit is greater than or equal to u1, the network device can determine the number of the at least one sub-time unit as 4. If the value of the path loss corresponding to the bandwidth upper limit of the first time unit is greater than u1 and less than u2, the network device can determine the number of the at least one sub-time unit as 2. If the value of the path loss corresponding to the bandwidth upper limit of the first time unit is greater than or equal to u2, the network device can determine the number of the at least one sub-time unit as 1. u1 and u2 are both real numbers, u1 is less than u2, and optionally, u1 is, for example, 100 dB, and u2 is, for example, 140 dB.

[0267] For another example, the plurality of time units include time slot 1, time slot 2, and time slot 3, the path loss corresponding to the bandwidth upper limit of time slot 1 is low, the path loss corresponding to the bandwidth upper limit of time slot 2 is high, and the path loss corresponding to the bandwidth upper limit of time slot 3 is medium, then the network device can determine the number of the sub-time units for transmitting the first signal on time slot 1 as 4, the number of the sub-time units for transmitting the first signal on time slot 2 as 1, and the number of the sub-time units for transmitting the first signal on time slot 3 as 2.

[0268] In the case that the bandwidth on the first time unit is determined based on the measurement information, the number of the at least one sub-time unit can be pre-configured or pre-defined in the network device, or determined by negotiation between the network device and the terminal device, which is not limited. For example, the number of the at least one sub-time unit is 2. Similarly, in the case that the number of the at least one sub-time unit is determined based on the measurement information, the bandwidth on the first time unit can be pre-configured or pre-defined in the network device, or determined by negotiation between the network device and the terminal device, which is not limited.

[0269] The above is an example of the way of determining the bandwidth on the first time unit and the number of the at least one sub-time unit, and there are many ways of determining the bandwidth on the first time unit and the number of the at least one sub-time unit, which is not limited.

[0270] The indication of the resource for transmitting the first signal by the network device to the terminal device includes the indication of the bandwidth on the first time unit and the at least one sub-time unit by the network device to the terminal device. The content of the indication of the bandwidth on the first time unit by the network device to the terminal device is described as an example.

[0271] For example, the network device can indicate the terminal device with a first quantity and a first location set of the at least one frequency domain resource. The first quantity can also be referred to as a reduction factor, a division quantity, or the like, and the name thereof is not limited. The first quantity represents a total quantity of frequency domain resources included in a bandwidth upper limit in a first time unit for transmitting the first signal. For example, the first quantity can be represented as P, and it can be understood that the bandwidth upper limit in the first time unit is divided into P parts or P frequency domain resources.

[0272] The first location set includes a first location of the bandwidth upper limit in the first time unit of the at least one frequency domain resource. For example, the index of the first location set can be represented as p∈{0,…,P-1}. Wherein, p represents the index of the first location of the at least one frequency domain resource in the bandwidth upper limit in the first time unit. The at least one frequency domain resource is a frequency domain resource in the first time unit for transmitting the first uplink signal. The sum of the bandwidths of the at least one frequency domain resource is the bandwidth of the first time unit for transmitting the first signal. The bandwidth of the first time unit for transmitting the first signal is less than or equal to the bandwidth upper limit in the first time unit.

[0273] The bandwidth upper limit in the first time unit can be pre-configured in the terminal device or indicated by the network device, and the specific limitation is not limited. Optionally, the network device indicates the terminal device with a frequency hopping index, a first parameter, and a frequency hopping parameter, which are used to determine (or indicate) the bandwidth upper limit in each time unit of the plurality of time units for transmitting the first signal.

[0274] The frequency hopping index can be represented as C SRS , the first parameter can be represented as B SRS , and the frequency hopping parameter can be represented as b hop . Taking the transmission bandwidth of the first time unit as an example, the bandwidth upper limit of the first time unit can be represented as the following formula (2).

[0275] Wherein, represents the quantity of subcarriers occupied by the first time unit for transmitting the first signal; m SRS,b represents the quantity of RBs occupied by the first time unit in the frequency domain; is the quantity of subcarriers occupied by one RB, for example, the value of TC represents the comb size. Wherein, m SRS,b and both can be used to represent the bandwidth upper limit of the first time unit, but the units adopted by the bandwidth upper limit are different.

[0276] Optionally, m SRS,b is based on the frequency hopping index C SRS and the first parameter BSRS determined.

[0277] For example, the terminal device and the network device are both preconfigured with the third correspondence, for example, both are configured with the third correspondence through a protocol. Alternatively, the network device indicates (or configures) the third correspondence to the terminal device, for example, the network device can indicate the third correspondence to the terminal device through high layer signaling (such as radio resource control (RRC)) or other signaling. The correspondence corresponding to the embodiments of the present application can be referred to as an association relationship, a correlation relationship, etc., and the name thereof is not limited.

[0278] Example 1: The third correspondence indicates a plurality of frequency hopping indexes C SRS and a plurality of first parameters B SRS . In this way, the second information can include the frequency hopping index C SRS and the first parameter B SRS , so that the terminal device can determine the total bandwidth and the bandwidth upper limit of each time unit in the plurality of time units respectively from the third correspondence based on the frequency hopping index C SRS and the first parameter B SRS . The total bandwidth represents the sum (or total bandwidth) of the bandwidth upper limits of the plurality of time units for transmitting the first signal.

[0279] Example 2: The third correspondence can also indicate a plurality of frequency hopping indexes C SRS , a plurality of first parameters B SRS , and a correspondence between the frequency hopping number corresponding to the first level frequency hopping. In this way, the second information can include the frequency hopping index C SRS and the first parameter B SRS , so that the terminal device can determine the total bandwidth, the bandwidth upper limit of each time unit in the plurality of time units, and the frequency hopping number corresponding to the first level frequency hopping from the third correspondence based on the frequency hopping index C SRS and the first parameter B SRS . The frequency hopping number corresponding to the first level frequency hopping can also be understood as the number of time units for transmitting the first signal, that is, the number of the plurality of time units.

[0280] Optionally, the second information further includes a frequency hopping parameter b hop . In this way, the terminal device can also determine the measured total bandwidth from the third correspondence based on the frequency hopping index C SRS , the first parameter B SRS , and the frequency hopping parameter b hop . The measured total bandwidth refers to the sum of the bandwidths of the plurality of time units for transmitting the first signal. The measured total bandwidth is less than or equal to the total bandwidth.

[0281] The form of the third correspondence relationship can be one or more tables, one or more functions, etc., and is not limited in form. For example, refer to Table 3 below for an example of the third correspondence relationship provided by an embodiment of the present application.

[0282] Table 3

[0283] As shown in Table 3, the total bandwidth m SRS,0 The maximum supported is 272 RBs (i.e., 272 RBs), and the minimum supported is 4 RBs (i.e., 4 RBs). The upper limit of the bandwidth of each time unit is an integer multiple of 4 RBs. The total bandwidth can be indicated by a frequency hopping index C SRS (with a value of 0 to 63), which corresponds to 64 different configurations. In different configurations, the total bandwidth m SRS,0 may be the same (e.g., C SRS = 61-63), but the upper limit of the optional bandwidth m SRS,b may be different. For example, the upper limit of the bandwidth can be indicated by B SRS , for example, the upper limit of the bandwidth occupied on the first time unit is m SRS,b (where b = B SRS ). The frequency hopping number of the first-level frequency hopping is calculated by N0= m b hop ∈{0,1,2,3}, if b hop ≥ B SRS , no frequency hopping, if b hop < B SRS , frequency hopping.

[0284] The following is an example based on Table 3.

[0285] Suppose the network device indicates C SRS = 24, b hop = 0. Based on the third correspondence relationship shown in Table 3, the terminal device can determine that the total bandwidth for transmitting the first signal is m SRS,0 = 96 RBs.

[0286] Example 1, if B SRS = 0, b hop ≥ B SRS , no frequency hopping, the actual total bandwidth is The upper limit of the bandwidth on the first time unit is m SRS,0 = 96 RBs, and the frequency hopping number of the first-level frequency hopping is N0= 1, i.e., no frequency hopping.

[0287] Example 2, if B SRS = 1, b hop < B SRS , frequency hopping, the actual total bandwidth is The upper limit of the bandwidth in the first time unit is m SRS,0 = 48 RB, the number of frequency hopping in the first stage of frequency hopping is N0*N1 = 2, or the number of time units used is 2.

[0288] Example 3, if B SRS = 2, b hop < B SRS Frequency hopping is required, and the actual total bandwidth is The upper limit of the bandwidth in the first time unit is m SRS,0 = 24 RB, the number of frequency hopping in the first stage of frequency hopping is N0*N1*N2 = 4, or the number of time units used is 4.

[0289] Example 4, if B SRS = 3, b hop < B SRS Frequency hopping is required, and the actual total bandwidth is The upper limit of the bandwidth in the first time unit is m SRS,0 = 4 RB, the number of frequency hopping in the first stage of frequency hopping is N0*N1*N2*N3 = 24, or the number of time units used is 24.

[0290] Assuming that the network device indicates C SRS = 24, b hop = 1. The terminal device can determine the total bandwidth for transmitting the first signal based on Table 3 to be m SRS , 0 = 96 RB.

[0291] Example 5, if B SRS = 1, b hop ≥ B SRS No frequency hopping is required, and the actual total bandwidth is The upper limit of the bandwidth in the first time unit is m SRS,0 = 48 RB, the number of frequency hopping in the first stage of frequency hopping is N1 = 1.

[0292] Example 6, if B SRS = 2, b hop < B SRS Frequency hopping is required, and the actual total bandwidth is The upper limit of the bandwidth in the first time unit is m SRS,0 = 24 RB, the number of frequency hopping in the first stage of frequency hopping is N1*N2 = 2, or the number of time units used is 2.

[0293] Example 7, if B SRS = 3, b hop < B SRS Frequency hopping is required, and the actual total bandwidth is The upper limit of the bandwidth in the first time unit is m SRS,0= 4 RBs, the frequency hopping number of the first level frequency hopping is N1*N2*N3 = 12, or the number of multiple time units is 12.

[0294] Table 1 above is an example of the third correspondence relationship, and does not limit the content and form of the third correspondence relationship.

[0295] Since the bandwidths for transmitting the first signal on the multiple time units and / or the number of sub-time units can be different, the network device can respectively indicate the bandwidth for transmitting the first signal on each time unit of the multiple time units and the sub-time units for transmitting the first signal to the terminal device.

[0296] For example, the network device can indicate the bandwidth for transmitting the first signal on each time unit of the multiple time units and the sub-time units for transmitting the first signal in the form of a table, a diagram, or a bitmap, without limitation to the form. Optionally, the bandwidth can be represented by the first number and the first position set.

[0297] [Corrected according to Rule 91 on 04.11.2025] For example, the first number, the first position set on each time unit of the multiple time units, and the number of sub-time units for transmitting the first signal can refer to the content shown in Table 4 below. In Table 4, the multiple time units include time unit 1, time unit 2, and time unit 3.

[0298] Table 4

[0299] [Corrected according to Rule 91 on 04.11.2025] As shown in Table 4 above, the number of sub-time units for transmitting the first signal on time unit 1 is 2, and the frequency domain resource 1 and the frequency domain resource 2 on the first sub-time unit of the two sub-time units are used for transmitting the first signal, and the frequency domain resource 3 and the frequency domain resource 4 on the second sub-time unit are used for transmitting the first signal.

[0300] The number of sub-time units for transmitting the first signal on time unit 2 is 3, and the frequency domain resource 1 and the frequency domain resource 2 on the first sub-time unit of the three sub-time units are used for transmitting the first signal, the frequency domain resource 3 and the frequency domain resource 4 on the second sub-time unit are used for transmitting the first signal, and the frequency domain resource 1 on the third sub-time unit is used for transmitting the first signal.

[0301] The number of sub-time units for transmitting the first signal on time unit 3 is 1, and the frequency domain resource 1 on the first sub-time unit of the one time unit is used for transmitting the first signal.

[0302] For example, the first number, the first position set, and the form of the sub-time units for transmitting the first signal on each of the plurality of time units can refer to the following diagrams 8 or 9 for the resource for transmitting the first signal. In both of the diagrams 8 and 9, a time unit is a time slot, a sub-time unit is a symbol, the plurality of time units include time slot 1, time slot 2, and time slot 3, one frequency domain unit (or one small grid) represents 2 RBs, and the first number is 4.

[0303] As shown in the diagram 8, the number of the sub-time units for transmitting the first signal on the time slot 1 is 1, the number of the sub-time units for transmitting the first signal on the time slot 2 is 2, and the number of the sub-time units for transmitting the first signal on the time slot 3 is 2. In addition, the first position set for transmitting the first signal on the time slot 1 is {2, 3}, the first position set for transmitting the first signal on the time slot 2 includes {2; 3}, and the first position set for transmitting the first signal on the time slot 3 includes {1, 2; 3, 4}.

[0304] As shown in the diagram 9, the number of the sub-time units for transmitting the first signal on the time slot 1 is 1, the number of the sub-time units for transmitting the first signal on the time slot 2 is 4, and the number of the sub-time units for transmitting the first signal on the time slot 3 is 2. In addition, the first position set for transmitting the first signal on the time slot 1 is {1, 2, 3, 4}, the first position set for transmitting the first signal on the time slot 2 includes {1; 2; 3; 4}, and the first position set for transmitting the first signal on the time slot 3 includes {1, 2; 3, 4}.

[0305] The above is an example of the network device indicating the bandwidth for transmitting the first signal on each of the plurality of time units and the form of the sub-time units for transmitting the first signal. In fact, there are many ways for the network device to indicate, which are not limited herein.

[0306] In a possible implementation, the terminal device is pre-configured or pre-defined with the position of the starting sub-time unit in the at least one sub-time unit. Alternatively, the network device indicates the position of the starting sub-time unit in the at least one sub-time unit to the terminal device. The starting sub-time unit can be understood as the sub-time unit starting to be used for transmitting the first signal on the first time unit. For example, the network device sends first indication information to the first terminal device. The first indication information indicates the starting sub-time unit. Optionally, the first indication information can also be carried in the DCI or the RRC, for example, the first indication information is carried in the resourceMapping field in the RRC.

[0307] For example, the first indication information indicates a first offset value. The first offset value represents a number of sub-time units of an interval between the starting sub-time unit and a terminal sub-time unit in the first time unit, and the first offset value is a positive integer. The first offset value can be represented by l offset For example, l offset ∈{0,1,…,13}. In this way, the first terminal device can determine the starting sub-time unit based on the first offset value.

[0308] For example, the formula for determining the starting sub-time unit is as follows.

[0309] wherein l0 represents a number (or an index, or an identifier, etc.) of the starting sub-time unit; represents a total number of sub-time units included in the first time unit.

[0310] For example, FIG. 10 illustrates an example of at least one sub-time unit. FIG. 10 takes a time unit as a time slot and a sub-time unit as a symbol for example.

[0311] (1) in FIG. 10 illustrates a schematic diagram of at least one sub-time unit. As shown in (1) in FIG. 10, offset If l = 2, then the starting sub-time unit l0 = 11, and the at least one sub-time unit includes symbol 11.

[0312] (2) in FIG. 10 illustrates a schematic diagram of at least one sub-time unit. As shown in (2) in FIG. 10, offset If l = 11, then the starting sub-time unit l0 = 2, and the at least one sub-time unit includes symbol 2 to symbol 13.

[0313] In a possible implementation, the network device further indicates a frequency hopping period of the first signal to the terminal device, or the terminal device is preconfigured or predefined with the frequency hopping period of the first signal. The frequency hopping period of the first signal is used to indicate a time length of an interval between two adjacent time units in the plurality of time units. For example, if the frequency hopping period of the first signal is 2 time slots, then the terminal device transmits the first signal on the first time slot and transmits the first signal on the third time slot. Alternatively, the terminal device is preconfigured or predefined with the frequency hopping period of the first signal, which is not specifically limited.

[0314] The terminal device can determine the resource used for transmitting the first signal based on the indication of the network device.

[0315] ​​The first position set is a position of each frequency domain resource in the upper limit of the bandwidth of the first time unit. Therefore, the terminal device can determine the position of each frequency domain resource in the total bandwidth based on the first position set.

[0316] For example, the first terminal device can determine the position of each frequency domain resource in the total bandwidth according to the second position and the first position set. The second position is the position of the starting frequency domain resource in the total bandwidth, that is, the starting frequency domain resource in the at least one frequency domain resource refers to the starting frequency domain resource used for transmitting the first signal on the frequency domain corresponding to the first time unit. The second position can be indicated by the network device or determined by the terminal device.

[0317] In a possible implementation, the terminal device determines the second position based on a second parameter. The second parameter represents the order of the first time unit in the plurality of time units for transmitting the first signal, or can be understood as the counting result of the frequency hopping number of the first level frequency hopping transmission when the first time unit is used for transmitting the first signal. For example, the plurality of time units includes time slot 0, time slot 1 and time slot 2, if the first time unit is time slot 2, then the order of the first time unit is 3, that is, the frequency hopping number of the first level frequency hopping is 3, that is, the value of the second parameter is 3.

[0318] For example, the second parameter satisfies the following formula (4).

[0319] Wherein, n SRS is the third parameter, is the number of time units included in a frame, n f is the frame number of a frame, is the number of the first time unit in a frame, T offset is the offset between the sub-time unit of the first time unit and the starting sub-time unit in the at least one sub-time unit, T SRS is the frequency hopping period of the first signal.

[0320] Optionally, if b hop ≥ B SRS , that is, no frequency hopping transmission, then the third parameter and the second position can satisfy the following formula (5).

[0321] Wherein, n ban index representing the second location, or a location index representing a starting frequency domain resource; n RRC represents a third parameter, which can be pre-configured or pre-defined in the terminal device and the network device, or configured by the network device to the terminal device, without specific limitation; mod represents a modulo operation; N b represents the number of values of N0, N1, N2, or N3 in the row corresponding to the frequency hopping index pair in Table 3.

[0322] Optionally, if b hop <B SRS , i.e., frequency hopping transmission, the second parameter and the second location can satisfy the content of the following formula (6).

[0323] wherein, since the value of N0 is fixed as 1, the value of n0 can be calculated as 0. In the case of frequency hopping (b hop <B SRS ), is a function of time, wherein Fb(n SRS ) can be represented by the content of the following formula (7).

[0324] In combination with the content of the above formulas (4) and (6), the location of one of the at least one frequency domain resource in the total bandwidth can be represented by the content of the following formula (8).

[0325] wherein, represents the starting location of one of the at least one frequency domain resource in the total bandwidth, represents the starting location of the total bandwidth, K TC is the comb size, n b represents an index of the second location, B SRS is the first parameter, represents the number of subcarriers included in the transmission bandwidth in the first time unit.

[0326] For example, in combination with the content of the above formula (8), the first number and the first location set, the location of one of the at least one frequency domain resource in the total bandwidth can also be represented by the content of the following formula (9).

[0327] wherein, P represents the first number, and p represents an index of the first location of one of the at least one frequency domain resource.

[0328] For example, assuming C SRS = 18, B SRS = 3, and the frequency hopping parameter b hop = 0. The number of RBs allocated per layer is m SRS,b= 72, 24, 12, 4 (b = 0, 1, 2, 3). When n SRS = 0, according to the above formula (8) or formula (9) and the content of the above table 3, the frequency location index n b = 0, 2, 1, 0. With the increase of n SRS , the process of the first 5 times of SRS frequency hopping is as follows table 5.

[0329] Table 5

[0330] Please refer to FIG. 11, which is a schematic diagram of the starting frequency domain position of the first frequency hopping provided by the embodiment of the application.

[0331] [Corrected according to Rule 91 on 04.11.2025] As shown in FIG. 11, and in combination with the content of the above table 5, if in the 0th layer, n0=0, then the transmission bandwidth of the first time unit is 72 RBs. If in the 1st layer, n1=0, 1 or 0, then the transmission bandwidth of the first time unit is 24 RBs. If in the 2nd layer, n2=0, 1, 0, 1, 0 or 1, then the transmission bandwidth of the first time unit is 12 RBs. If in the 3rd layer, n3=0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, then the transmission bandwidth of the first time unit is 4 RBs.

[0332] As shown in FIG. 11, the starting position (n SRS = 0) of the first signal transmitted on the first time unit is the 16th frequency domain resource from left to right; the starting position (n SRS = 1) of the first signal transmitted on the second time unit is the 4th frequency domain resource from left to right; the starting position (n SRS = 2) of the first signal transmitted on the third time unit is the 10th frequency domain resource from left to right; the starting position (n SRS = 3) of the first signal transmitted on the fourth time unit is the 13th frequency domain resource from left to right; the starting position (n SRS = 4) of the first signal transmitted on the fifth time unit is the 1st frequency domain resource from left to right; the starting position (n SRS = 5) of the first signal transmitted on the sixth time unit is the 7th frequency domain resource from left to right.

[0333] After the terminal device determines the resource used to transmit the first signal, the terminal device can send the first signal based on the resource. Correspondingly, the network device can receive the first signal on the resource. Further, the network device can measure the channel between the terminal device and the network device, such as the uplink channel.

[0334] To improve flexibility of transmitting a signal, embodiments of the present application provide a communication scheme. In the scheme, a terminal device can transmit a first signal on a resource, the resource comprising a plurality of time units, at least two of the plurality of time units having different number of sub-time units used for transmitting the first signal, and / or at least two of the plurality of time units having different bandwidths used for transmitting the first signal. In this way, the resource for transmitting the first signal has higher flexibility. Also, this helps to reduce the minimum resource occupied by a single transmission of the first signal, and improve power spectral density of transmitting the first signal.

[0335] S1201, the terminal device transmits a first signal to a network device on a resource. Correspondingly, the network device receives the first signal from the terminal device on the resource.

[0336] The resource comprises a plurality of time units respectively used for transmitting the first signal, and a plurality of bandwidths respectively used for transmitting the first signal on the plurality of time units, at least two of the plurality of time units having different number of sub-time units used for transmitting the first signal, and / or at least two of the plurality of time units having different bandwidths used for transmitting the first signal. The first signal, the plurality of time units, the bandwidths, and the sub-time units can be the same as those discussed above with reference to the first signal, the plurality of time units, the bandwidths, and the sub-time units of FIG. 6, and thus are not repeated here.

[0337] Optionally, the network device can measure a channel between the terminal device and the network device, such as an uplink channel.

[0338] In a possible implementation, the terminal device transmits measurement information to the network device. Correspondingly, the network device receives the measurement information from the terminal device. The measurement information can be the same as that discussed above with reference to the measurement information of FIG. 6, and thus is not repeated here.

[0339] In a possible implementation, the network device indicates the resource for transmitting the first signal to the terminal device. The network device determines the resource for transmitting the first signal, and the network device indicates the resource for transmitting the first signal can be the same as that discussed above with reference to the network device determines the resource for transmitting the first signal, and the network device indicates the resource for transmitting the first signal of FIG. 6, and thus is not repeated here.

[0340] Optionally, the content involved in the method embodiments of FIG. 6 can be applied to the method embodiments of FIG. 12, and thus is not repeated here.

[0341] Based on the same inventive concept, the embodiment of the present application provides a communication device. Any of the communication devices shown in FIG. 13 to FIG. 15 is described below. The communication device is, for example, the network device (such as a base station) related to FIG. 1, the access network device or the core network device related to FIG. 2, or the access network device related to FIG. 3, the first terminal device is, for example, the terminal device related to FIG. 1, the terminal device related to FIG. 2, etc., or can be a module in these devices, etc., which is not specifically limited.

[0342] As shown in FIG. 13, the communication device 1300 can include modules or units for implementing the method embodiments described above. In one possible design, the communication device 1300 includes a processing unit 1310 and a communication unit 1320. The communication unit 1320 is configured to perform transceiving operations, such as functions related to transmitting and receiving; the communication unit 1320 can be referred to as a transceiver; optionally, the communication unit 1320 includes a receiving unit and a transmitting unit. The processing unit 1310 is configured to perform processing operations. Alternatively, the communication unit 1320 can be a transmitter and a receiver, or the communication unit 1320 is a transmitter and a receiver. Optionally, the communication device 1300 further includes a storage unit 1330. The storage unit 1330 is configured to store program codes or data of the device. The storage unit 1330 is an optional unit as shown in FIG. 13 by a dashed box.

[0343] In a first embodiment, the communication device 1300 can be the terminal device in the method embodiment shown in FIG. 6, a communication module in the terminal device, or a circuit or chip responsible for the communication function in the terminal device, etc., or implement the function of the terminal device in the method embodiment shown in FIG. 6. For example, the communication device 1300 is a communication module in the terminal device, or a circuit or chip responsible for the communication function in the terminal device.

[0344] In the above embodiment, the communication unit 1320 is configured to perform the step of transmitting the measurement information in S601, and the step of obtaining the indicated resource for transmitting the first signal in S602.

[0345] The communication device 1300 can also implement other steps performed by the terminal device in the method embodiment shown in FIG. 6, which are not listed one by one here.

[0346] In a second embodiment, the communication device 1300 can be the network device in the method embodiment shown in FIG. 6, a communication module in the network device, or a circuit or chip responsible for the communication function in the network device, etc., or implement the function of the network device in the method embodiment shown in FIG. 6. For example, the communication device 1300 is a communication module in the network device, or a circuit or chip responsible for the communication function in the network device.

[0347] In the above embodiment, the communication unit 1320 is configured to perform the step of receiving the measurement information involved in S601, and the step of sending the resource for transmitting the first signal involved in S602.

[0348] The communication apparatus 1300 can further implement other steps performed by the network device in the method embodiments of the preceding FIG. 6, which are not listed one by one here.

[0349] In a third embodiment, the communication apparatus 1300 can be the terminal device in the method embodiments of the preceding FIG. 12, a communication module in the terminal device, a circuit or chip responsible for communication functions in the terminal device, etc., or implement the functions of the terminal device in the method embodiments of the preceding FIG. 12. For example, the communication apparatus 1300 is a communication module in the terminal device, or a circuit or chip responsible for communication functions in the terminal device.

[0350] In the above embodiment, the communication unit 1320 is configured to perform the step of sending the first signal involved in S1201.

[0351] The communication apparatus 1300 can further implement other steps performed by the terminal device in the method embodiments of the preceding FIG. 12, which are not listed one by one here.

[0352] In a fourth embodiment, the communication apparatus 1300 can be the network device in the method embodiments of the preceding FIG. 12, a communication module in the network device, a circuit or chip responsible for communication functions in the network device, etc., or implement the functions of the network device in the method embodiments of the preceding FIG. 12. For example, the communication apparatus 1300 is a communication module in the network device, or a circuit or chip responsible for communication functions in the network device.

[0353] In the above embodiment, the communication unit 1320 is configured to perform the step of receiving the first signal involved in S1201.

[0354] The communication apparatus 1300 can further implement other steps performed by the network device in the method embodiments of the preceding FIG. 12, which are not listed one by one here.

[0355] In a possible design, when the communication apparatus 1300 is a terminal device, a communication module in the terminal device, an access network device, or a communication module in the access network device, the function of the processing unit 1310 can be implemented by one or more processors. Specifically, the processor can include a Modem chip, or a System on Chip (SoC) chip or a SIP chip containing a Modem core. The function of the communication unit 1320 can be implemented by a transceiver circuit.

[0356] In a possible design, when the communication apparatus 1300 is a circuit or chip responsible for communication function in a terminal device, or a circuit or chip responsible for communication function in an access network device, such as a Modem chip or a System on Chip (SoC) chip or a SIP chip containing a Modem core, the function of the processing unit 1310 can be implemented by circuitry containing one or more processors or processor cores in the chip. The function of the communication unit 1320 can be implemented by interface circuit or data transceiver circuit on the chip.

[0357] It can be understood that the division of the units in the above apparatus is only a logical division of functions, one function unit can be provided for each function, or two or more functions can be integrated in one function unit. In actual implementation, all or part of the units can be integrated on one physical entity, or distributed on different physical entities. In addition, the function units can be implemented in the form of hardware, software or hardware combined with software. Whether a certain function is implemented in the form of hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered as beyond the scope of the present application.

[0358] In one example, the function units in any of the above apparatuses can be one or more integrated circuits configured to implement the above methods, for example: one or more application specific integrated circuits (ASICs), or one or more central processing units (CPUs), one or more microcontroller units (MCUs), one or more DSPs, or one or more field programmable gate arrays (FPGAs), or a combination of at least two of the integrated circuit forms.

[0359] In one example, the storage unit 1330 can include random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory and / or registers, etc.

[0360] The communication apparatus shown in Fig. 14 is described below. As shown in Fig. 14, the communication apparatus 1400 includes a processor 1410. Optionally, the communication apparatus 1400 further includes an interface circuit 1420 and a memory 1430. The processor 1410 and the interface circuit 1420 are coupled to each other. It can be understood that the interface circuit 1420 can be a transceiver or an input / output interface. The memory 1430 is configured to store instructions executed by the processor 1410 or store input data required by the processor 1410 to execute instructions or store data generated after the processor 1410 executes instructions. The interface circuit 1420 and the memory 1430 are optional modules, which are shown in a dashed box in Fig. 14. In addition, Fig. 14 takes one processor 1410 and one memory 1430 as an example, which does not limit the number of the processor 1410 and the memory 1430 in practice.

[0361] The communication apparatus 1400 is configured to implement the method embodiments shown in any of Figs. 6 or 12. Optionally, the processor 1410 is configured to implement the functions of the processing unit 1310 described above, and the interface circuit 1420 is configured to implement the functions of the communication unit 1320 described above.

[0362] For example, the communication apparatus 1400 can be configured to implement the functions of the terminal device or the network device in the method embodiments shown in Fig. 6 or any of the terminal devices or the network devices involved in Fig. 12.

[0363] When the communication apparatus 1400 described above is a chip applied to a certain device (such as the terminal device or the network device described above), the device chip implements the functions of the device in the method embodiments described above. The device chip receives information from other modules (such as a radio frequency module or an antenna) in the device, and the information is sent by other devices to the device; or the device chip sends information to other modules (such as a radio frequency module or an antenna) in the device, and the information is sent by the device to other devices. The communication apparatus 1400 here can be a baseband chip of a certain device, or a DU or other modules, and the DU here can be a DU under the open radio access network (O-RAN) architecture.

[0364] The processor 1410 can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor can be a microprocessor or any conventional processor. In addition, the memory involved in various embodiments of the present application can include volatile memory (such as random access memory (RAM)), and can also include non-volatile memory (such as read-only memory (ROM), flash memory, hard disk drive (HDD) or solid state drive (SSD)).

[0365] The communication device shown in FIG. 15 is described below. As shown in FIG. 15, the communication device 1500 includes a processor 1510 and a transceiver 1530. The processor 1510 can also be referred to as a processing unit, a processing board, a processing module, a processing device, etc. The implementation of the processor 1510 can refer to the content of the processor 1410 in FIG. 14. The transceiver 1530 can also be referred to as a transceiving unit, a transceiver, a transceiving device, etc. The transceiver 1530 includes a transmitter 1531, a receiver 1532, and an antenna 1533. Optionally, the transceiver 1530 can also include radio frequency circuitry, input / output devices, etc., which are not limited herein.

[0366] Optionally, the devices in the transceiver 1530 for implementing the receiving function are regarded as a receiving module, and the devices in the transceiver 1530 for implementing the sending function are regarded as a sending module, i.e., the transceiver 1530 includes a receiver and a transmitter. The transceiver can also be referred to as a transceiver module, a transceiver circuit, etc. The receiver can also be referred to as a receiver module, a receiver circuit, etc. The transmitter can also be referred to as a transmitter module, a transmitter circuit, etc.

[0367] Optionally, the communication device 1500 can also include a memory 1520, which can store computer program codes and / or data.

[0368] The processor 1510 is mainly used for processing communication protocols and communication data, controlling the communication device 1500, executing software programs, processing data of the software programs, etc. The memory 1520 is mainly used for storing software programs and data. The radio frequency circuit is mainly used for conversion between baseband signals and radio frequency signals and processing of the radio frequency signals. The antenna 1533 is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. The input and output device, such as a touch screen, a display screen, a keyboard, etc. is mainly used for receiving data input by a user and outputting data to the user.

[0369] When data needs to be sent, the processor 1510 performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal, and transmits the radio frequency signal in the form of electromagnetic waves through the antenna. When data is sent to the communication device 1500, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor 1510 converts the baseband signal into data and processes the data. For the convenience of description, only one memory 1520, one processor 1510 and one transceiver 1530 are shown in FIG. 15. In actual terminal products, there can be one or more processors 1510 and one or more memories 1520. The memory 1520 can also be referred to as a storage medium or a storage device, etc. The memory 1520 can be arranged independently of the processor 1510, or can be integrated with the processor 1510, which is not limited.

[0370] In the embodiments of the present application, the antenna and the radio frequency circuit with the transceiving function are regarded as the communication unit of the communication device 1500, and the processor with the processing function is regarded as the processing unit of the communication device 1500. The processor 1510 is used to perform the processing actions of the terminal device or the network device side in the method embodiments described above with reference to FIG. 6 or FIG. 12, and the transceiver 1530 is used to perform the transceiving actions of the terminal device or the network device side in the method embodiments described above.

[0371] When the communication device 1500 is a chip, the chip includes a processor and a transceiver. The transceiver can be an input and output circuit or a communication interface, and the processor can be a processing module integrated on the chip or a microprocessor or an integrated circuit. Optionally, the chip can further include a memory. The sending operation of the terminal device or the network device in the method embodiments described above can be understood as the output of the chip, and the receiving operation of the terminal device or the network device in the method embodiments described above can be understood as the input of the chip.

[0372] The embodiments of the present application provide a communication system. The communication system includes a terminal device and a network device.

[0373] In a possible implementation, the terminal device can implement the functions of the terminal device in the method implementation shown in FIG. 6, and the network device can implement the functions of the network device in the method implementation shown in FIG. 6.

[0374] In another possible implementation, the terminal device can implement the functions of the terminal device in the method implementation shown in FIG. 12, and the network device can implement the functions of the network device in the method implementation shown in FIG. 12.

[0375] Embodiments of the present application provide a chip system, comprising: a processor and an interface. The processor is configured to call and run an instruction from the interface, and when the processor executes the instruction, the method implementation shown in any one of FIG. 6 or FIG. 12 is implemented.

[0376] Embodiments of the present application provide a computer readable storage medium for storing computer programs or instructions, which when executed, implement the method implementation shown in any one of FIG. 6 or FIG. 12.

[0377] Embodiments of the present application provide a program product, when the program product is executed, a processor implements the method implementation shown in any one of FIG. 6 or FIG. 12. The program product is, for example, a computer program product, and specifically, for example, a computer program and / or instructions, etc. The processor is, for example, a processor running in a computer.

[0378] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer programs or instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are performed. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment or other programmable apparatus. The computer programs or instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer programs or instructions can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center through wired or wireless manner. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape; or an optical medium, such as a digital video disc; or a semiconductor medium, such as a solid state disk. The computer readable storage medium can be a volatile or non-volatile storage medium, or can include both volatile and non-volatile storage media.

[0379] In various embodiments of the present application, the terms and / or descriptions among different embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features among different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0380] The various digital numbers involved in various embodiments of the present application are only for the convenience of differentiation in the description, and are not used to limit the scope of the embodiments of the present application. The size of the serial number of each process does not mean the order of execution, and the execution order of each process should be based on its function and inherent logic.

Claims

1. A communication method characterized by comprising: The method applied to a network device side comprises: receiving measurement information representing a measurement parameter of a channel between a terminal device side and the network device side; indicating a resource for transmitting a first signal, the resource comprising a sub-time unit for transmitting the first signal in one time unit of a plurality of time units and a bandwidth for transmitting the first signal on the one time unit, the number of sub-time units for transmitting the first signal on the one time unit and / or the bandwidth for transmitting the first signal on the one time unit being determined based on the measurement information.

2. A communication method characterized by comprising: The method applied to a terminal device side comprises: sending measurement information representing a measurement parameter of a channel between the terminal device side and a network device side; receiving an indication of a resource for transmitting a first signal, the resource comprising a sub-time unit for transmitting the first signal in one time unit of a plurality of time units and a bandwidth for transmitting the first signal on the one time unit, the number of sub-time units for transmitting the first signal on the one time unit and / or the bandwidth for transmitting the first signal on the one time unit being related to the measurement information.

3. The method according to claim 1 or 2, characterized in that, The measurement information comprises information of a channel sparsity corresponding to an upper limit of the bandwidth for transmitting the first signal on the one time unit, wherein: the smaller the channel sparsity, the larger the bandwidth for transmitting the first signal on the one time unit; or the larger the channel sparsity, the smaller the bandwidth for transmitting the first signal on the one time unit.

4. The method of claim 3, wherein, The bandwidth for transmitting the first signal on the one time unit is a bandwidth in a first correspondence relationship matching a value range to which the channel sparsity belongs, wherein: The first correspondence relationship indicates a correspondence relationship between at least one value range of a channel sparsity and at least one bandwidth.

5. The method according to any one of claims 1 to 4, characterized in that, The channel sparsity satisfies the following formula: wherein S represents the channel sparsity, r1, r2 and r3 are all real numbers, r3 is greater than r2, r2 is greater than r1, gain max represents the maximum channel gain corresponding to the bandwidth upper limit of the one time unit, gain min represents the minimum channel gain corresponding to the bandwidth upper limit of the one time unit, gain avg represents the average channel gain corresponding to the bandwidth upper limit of the one time unit, w1 and w2 are both real numbers, w1 is less than w2.

6. The method according to any one of claims 1 to 5, characterized in that, The measurement information comprises information of a channel path loss corresponding to an upper limit of the bandwidth for transmitting the first signal on the one time unit, wherein: the lower the channel path loss, the larger the number of sub-time units for transmitting the first signal on the one time unit; or the higher the channel path loss, the smaller the number of sub-time units for transmitting the first signal on the one time unit.

7. The method of claim 6, wherein, The number of sub-time units for transmitting the first signal on the one time unit is a number of sub-time units in a second correspondence relationship matching a value range to which the channel path loss belongs, wherein: The second correspondence relationship indicates a correspondence relationship between at least one value range of a channel path loss and at least one number of sub-time units.

8. The method according to any one of claims 1 to 7, characterized in that, The indication of the bandwidth for transmitting the first signal on the one time unit comprises: indicating a first quantity and a first position set of at least one frequency domain resource, wherein the first quantity represents a total number of frequency domain resources included in a bandwidth upper limit for transmitting the first signal in the one time unit, the at least one frequency domain resource is a frequency domain resource for transmitting the first uplink signal in the one time unit, and the first position set includes at least one first position, each of the at least one first position representing a position of one of the at least one frequency domain resource on the bandwidth upper limit for transmitting the first signal in the one time unit.

9. The method of claim 8, wherein, A position of one of the at least one frequency domain resource in a total bandwidth is determined based on a second position and a first position of the one frequency domain resource, the total bandwidth is a set of maximum transmission bandwidths for transmitting the first signal in the plurality of time units, and the second position is a position of a starting frequency domain resource in the at least one frequency domain resource in the total bandwidth.

10. The method of claim 9, wherein, The location of the one frequency domain resource in the total bandwidth satisfies the following formula: wherein a start position of the one frequency domain resource in the total bandwidth, denotes a start position of the total bandwidth, K TC is a comb size, n b denotes an index of the second position, B SRS is a first parameter, A quantity of subcarriers included in the bandwidth upper limit in the one time unit, P represents the first quantity, and p represents the first position of the one frequency domain resource.

11. The method according to claim 9 or 10, characterized in that, The second position is determined based on a second parameter representing an order of the one time unit for transmitting the first signal in the plurality of time units.

12. The method of claim 11, wherein, The second parameter satisfies the following formula: wherein n SRS is the second parameter, n is the number of time units included in one intra frame f frame number of the one frame, T is a number of the one time unit within the one frame offset T is an offset between a sub-time unit of the one time unit and a start sub-time unit of the at least one sub-time unit SRS T is a frequency hopping period of the first signal.

13. The method according to any one of claims 1 to 12, characterized in that, At least two time units of the plurality of time units have different starting positions in the frequency domain for transmitting the first signal.

14. The method according to any one of claims 1 to 13, characterized in that, The bandwidth for transmitting the first signal in the one time unit is a partial bandwidth or the entire bandwidth in the bandwidth upper limit for transmitting the first signal in the first time unit.

15. The method according to any one of claims 1 to 14, characterized in that, The measurement information is carried in a channel state information report.

16. A method of communication, comprising: The method applied to a network device side includes: receiving a first signal on a resource, wherein the resource includes a plurality of time units respectively for transmitting a sub-time unit of the first signal, and a bandwidth respectively for transmitting the first signal in the plurality of time units, wherein at least two time units of the plurality of time units have different numbers of sub-time units for transmitting the first signal, and / or at least two time units of the plurality of time units have different bandwidths for transmitting the first signal.

17. A method of communication, comprising: The method applied to a terminal device side includes: transmitting a first signal on a resource, wherein the resource includes a plurality of time units respectively for transmitting a sub-time unit of the first signal, and a bandwidth respectively for transmitting the first signal in the plurality of time units, wherein at least two time units of the plurality of time units have different numbers of sub-time units for transmitting the first signal, and / or at least two time units of the plurality of time units have different bandwidths for transmitting the first signal.

18. A communication device, characterized by The device includes a communication unit configured to: receive measurement information representing a measurement parameter of a channel between a terminal device side and a network device side; indicate resources for transmitting a first signal, the resources comprising sub-time units in one time unit of a plurality of time units for transmitting the first signal, and a bandwidth on the one time unit for transmitting the first signal, a number of the sub-time units on the one time unit for transmitting the first signal and / or the bandwidth on the one time unit for transmitting the first signal being determined based on the measurement information.

19. A communication device, characterized by The device comprises a communication unit configured to: transmit measurement information representing a measurement parameter of a channel between a terminal device side and a network device side; receive an indication of resources for transmitting a first signal, the resources comprising sub-time units in one time unit of a plurality of time units for transmitting the first signal, and a bandwidth on the one time unit for transmitting the first signal, a number of the sub-time units on the one time unit for transmitting the first signal and / or the bandwidth on the one time unit for transmitting the first signal being related to the measurement information.

20. The apparatus of claim 18 or 19, wherein, The measurement information comprises information of a channel sparsity corresponding to an upper limit of the bandwidth on the one time unit for transmitting the first signal, wherein: the smaller the channel sparsity, the larger the bandwidth on the one time unit for transmitting the first signal; or the larger the channel sparsity, the smaller the bandwidth on the one time unit for transmitting the first signal.

21. The apparatus of claim 20, wherein, The bandwidth on the one time unit for transmitting the first signal is a bandwidth in a first correspondence matching a value range to which the channel sparsity belongs, wherein: The first correspondence indicates a correspondence between at least one value range of a channel sparsity and at least one bandwidth.

22. The apparatus of any one of claims 18-21, wherein, The measurement information is related to a first reference signal, and the measurement information comprises information of a channel path loss corresponding to an upper limit of the bandwidth on the one time unit for transmitting the first signal, wherein: the lower the channel path loss, the larger a number of the sub-time units on the one time unit for transmitting the first signal; or the higher the channel path loss, the smaller a number of the sub-time units on the one time unit for transmitting the first signal.

23. A computer program product, characterised in that, The computer program product, when executed, causes a processor to perform the method of any one of claims 1 and 3-15, or the method of any one of claims 2 and 3-15, or the method of claim 16, or the method of claim 17.

24. A computer-readable storage medium, characterized in that, The storage medium has stored therein a computer program or instructions, which, when executed by a communication device, implement the method of any one of claims 1 and 3-15, or the method of any one of claims 2 and 3-15, or the method of claim 16, or the method of claim 17.

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