Transmission method for positioning reference signal resource, and communication device

Abstract

The present application relates to the technical field of communications, and discloses a transmission method for a positioning reference signal resource, and a communication device. The transmission method for a positioning reference signal resource in embodiments of the present application comprises: a communication device sends or receives a positioning reference signal resource, symbols occupied by the positioning reference signal resource in one time slot comprising at least one symbol group, and each symbol group comprising one or more consecutive symbols, wherein the at least one symbol group is used for frequency hopping transmission of the positioning reference signal resource, an interval symbol is contained between adjacent symbol groups in a time domain, the interval symbol is not used for transmitting the positioning reference signal resource, and the length of the interval symbol is not less than a frequency hopping switching time.

Description

Transmission method and communication device for positioning reference signal resources

[0001] Cross-references

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 27, 2022, with application number 202211686605.1 and titled “Transmission method and communication equipment for positioning reference signal resources”. The entire contents of the application are incorporated by reference into this application. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a method for transmitting positioning reference signal resources and a communication device. Background Art

[0004] A Reduced Capability (RedCap) terminal is a terminal that meets the requirements of low complexity and low cost. In some communication scenarios, it is usually necessary to locate a RedCap terminal. When locating a terminal, bandwidth is an important factor affecting positioning accuracy. However, due to its limited capabilities, the bandwidth supported by a RedCap terminal is much smaller than that of an ordinary terminal (a RedCap terminal only supports a maximum bandwidth of 20M in FR1 and a maximum bandwidth of 100M in FR2, while an ordinary terminal supports a maximum of 100MHz in FR1 and a maximum of 400MHz in FR2). Therefore, when locating a RedCap terminal, the positioning accuracy is relatively low due to the smaller bandwidth it supports. In order to improve the positioning accuracy of a RedCap terminal, it is necessary to increase the effective bandwidth of the RedCap terminal. However, there is currently a lack of an effective technical solution to achieve this goal.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a method for transmitting positioning reference signal resources and a communication device, which can solve the problem of low positioning accuracy caused by the small bandwidth supported by the RedCap terminal when performing positioning.

[0007] In a first aspect, a method for transmitting a positioning reference signal resource is provided, the method comprising: a communication device sending or receiving a positioning reference signal resource, wherein the symbols occupied by the positioning reference signal resource in a time slot include at least one symbol group, and each symbol group includes one or more consecutive symbols; wherein the at least one symbol group is used for frequency hopping transmission of the positioning reference signal resource, adjacent symbol groups in the time domain include interval symbols, the interval symbols are not used to transmit the positioning reference signal resource, and the length of the interval symbols is not less than the frequency hopping switching time.

[0008] According to a second aspect, a transmission device for positioning reference signal resources is provided, which includes: a transmission module for sending or receiving positioning reference signal resources, wherein the symbols occupied by the positioning reference signal resources in a time slot include at least one symbol group, and each symbol group includes one or more consecutive symbols; wherein the at least one symbol group is used for frequency hopping transmission of the positioning reference signal resources, and adjacent symbol groups in the time domain include interval symbols, the interval symbols are not used to transmit the positioning reference signal resources, and the length of the interval symbols is not less than the frequency hopping switching time.

[0009] In a third aspect, a communication device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0010] In a fourth aspect, a communication device is provided, comprising a processor and a communication interface, wherein the communication interface is used to send or receive positioning reference signal resources, and the symbols occupied by the positioning reference signal resources in a time slot include at least one symbol group, and each symbol group includes one or more consecutive symbols; wherein the at least one symbol group is used for frequency hopping transmission of the positioning reference signal resources, and adjacent symbol groups in the time domain include interval symbols, and the interval symbols are not used to transmit the positioning reference signal resources, and the length of the interval symbols is not less than the frequency hopping switching time.

[0011] In a fifth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0012] In a sixth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run a program or instruction to implement the method described in the first aspect.

[0013] In a seventh aspect, a computer program / program product is provided, which is stored in a storage medium and executed by at least one processor to implement the steps of the method for transmitting positioning reference signal resources as described in the first aspect.

[0014] In an embodiment of the present application, when sending or receiving a positioning reference signal resource for terminal positioning, the symbols occupied by the positioning reference signal resource in a time slot include at least one symbol group, and each symbol group includes one or more continuous symbols, wherein at least one symbol group is used for frequency hopping transmission of the positioning reference signal resource, and adjacent symbol groups in the time domain include interval symbols, which are not used to transmit the positioning reference signal resource, and the length of the interval symbol is not less than the frequency hopping switching time. In this way, since the positioning reference signal can be sent or received by frequency hopping transmission, the effective bandwidth of the positioning reference signal can be improved, thereby improving the positioning accuracy. In addition, since the positioning reference signal resource includes interval symbols between adjacent symbol groups occupied in the time slot, and the length of the interval symbol is not less than the frequency hopping switching time, it can also facilitate RF retuning between different frequency hopping, thereby ensuring the effective transmission of the positioning reference signal resource. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1(a) is a schematic diagram of the configuration and pattern of relative RE offset in the existing protocol;

[0016] Figure 1(b) is a schematic diagram of the configuration and pattern of relative RE offset in the existing protocol;

[0017] Figure 1(c) is a schematic diagram of the configuration and pattern of relative RE offset in the existing protocol;

[0018] Figure 1(d) is a schematic diagram of the configuration and pattern of relative RE offset in the existing protocol;

[0019] FIG2 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

[0020] FIG3 is a schematic flowchart of a method for transmitting positioning reference signal resources according to an embodiment of the present application;

[0021] FIG4( a ) is a schematic diagram of the configuration and pattern of the relative RE offset according to an embodiment of the present application;

[0022] FIG4( b ) is a schematic diagram of the configuration and pattern of the relative RE offset according to an embodiment of the present application;

[0023] FIG5 is a schematic structural diagram of a transmission device for positioning reference signal resources according to an embodiment of the present application;

[0024] FIG6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

[0025] FIG7 is a schematic structural diagram of a communication device according to an embodiment of the present application;

[0026] FIG8 is a schematic structural diagram of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0027] Currently, RedCap terminals have limited capabilities, supporting only a maximum bandwidth of 20 Mbps in FR1 and 100 Mbps in FR2, significantly lower than the bandwidth supported by standard terminals. In terminal positioning, bandwidth is a key factor affecting positioning accuracy, and generally, greater bandwidth leads to higher positioning accuracy. Therefore, for RedCap terminal positioning, when bandwidth is limited, research is needed to improve effective bandwidth.

[0028] Currently, frequency hopping is used to increase the effective positioning bandwidth. Specifically, a terminal can transmit positioning reference signals at different times with a smaller bandwidth and staggered frequency domain positions to increase the overall effective positioning reference signal bandwidth. Positioning reference signals from adjacent hops partially overlap in the frequency domain. By calculating the phase relationship of the overlapping channels, phase consistency can be ensured to a certain extent between channel measurements at different hops, improving merging performance.

[0029] Generally speaking, RF retuning is required between different Positioning Reference Signal (PRS) hops. Therefore, the distance between adjacent hops in the time domain must be at least greater than the RF retuning time. Therefore, if a PRS resource performs frequency hopping within a time slot, gaps are required between the PRS symbols used in different hops. However, in existing protocols, the mapping pattern of PRS resources (such as SRS resources) within a slot is continuous in the time domain, with no gaps for RF retuning between hops. Therefore, a redesigned mapping pattern suitable for frequency hopping, including gap symbols, is required.

[0030] Taking the comb structure size of 4 (i.e., comb = 4) and the positioning reference signal resource as an SRS resource as an example, in existing protocols, when performing frequency-hopping transmission of SRS resources, the protocol specifies the corresponding relative RE offset configurations as {0, 2}, {0, 2, 1, 3}, {0, 2, 1, 3, 0, 2, 1, 3}, and {0, 2, 1, 3, 0, 2, 1, 3, 0, 2, 1, 3}. The corresponding time-frequency mapping patterns within a time slot are shown in Figures 1(a), 1(b), 1(c), and 1(d). In these four figures, the horizontal axis represents the time domain, and the vertical axis represents the frequency domain. Figure 1(a) shows that the SRS resource can be transmitted continuously over two symbols, with no gap between them. Figure 1(b) shows that the SRS resource can be transmitted continuously over four symbols, with no gap between them. Figure 1(c) shows that the SRS resource can be transmitted continuously over eight symbols, with no gap between them. As shown in Figure 1(d), SRS resources can be transmitted continuously over 12 symbols, but there are no gaps between them. In other words, in existing protocols, the SRS resource mapping pattern within a slot is continuous in the time domain, with no gaps for RF retuning between hops. Therefore, a new mapping pattern suitable for frequency hopping, including gap symbols (s), is needed.

[0031] The embodiment of the present application provides a method for transmitting positioning reference signal resources and a communication device. When sending or receiving positioning reference signal resources for terminal positioning, the symbols occupied by the positioning reference signal resources in a time slot include at least one symbol group, and each symbol group includes one or more continuous symbols, wherein at least one symbol group is used for frequency hopping transmission of the positioning reference signal resources, and adjacent symbol groups in the time domain include interval symbols, which are not used to transmit positioning reference signal resources, and the length of the interval symbols is not less than the frequency hopping switching time. In this way, since the positioning reference signal can be sent or received by frequency hopping transmission, the effective bandwidth of the positioning reference signal can be improved, thereby improving the positioning accuracy. In addition, since the positioning reference signal resources include interval symbols between adjacent symbol groups occupied in the time slot, and the length of the interval symbols is not less than the frequency hopping switching time, it can also facilitate RF retuning between different frequency hopping, thereby ensuring the effective transmission of the positioning reference signal resources.

[0032] It should be noted that the positioning reference signal in the embodiment of the present application includes but is not limited to an uplink positioning reference signal and a downlink positioning reference signal. The frequency hopping transmission in the embodiment of the present application can be a frequency hopping transmission of an uplink positioning reference signal or a frequency hopping transmission of a downlink positioning reference signal. Among them, the uplink positioning reference signal includes but is not limited to at least one of a sounding reference signal (SRS) and an SRS for positioning, and the downlink positioning reference signal includes but is not limited to at least one of a downlink positioning reference signal (DL PRS), a channel state information reference signal (CSI-RS), and a tracking reference signal (TRS).

[0033] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0034] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0035] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and the NR terminology is used in most of the following description, but these technologies can also be applied to applications other than NR system applications, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0036] FIG2 shows a block diagram of a wireless communication system applicable to embodiments of the present application. The wireless communication system includes a terminal 11 and a network-side device 12 . The terminal 11 may be a mobile phone, a tablet personal computer, a laptop computer or a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device (Wearable Device), a vehicle user equipment (VUE), a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, etc. The wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network side device 12 may include an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (RAN), a radio access network function, or a radio access network unit.The access network device 12 may include a base station, a wireless local area network (WLAN) access point, a wireless fidelity (WiFi) node, etc. The base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home B node, a home evolved B node, a transmission reception point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0037] The following describes in detail the positioning reference signal resource transmission method and communication device provided in the embodiments of the present application through some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0038] As shown in Figure 3, an embodiment of the present application provides a method 300 for transmitting positioning reference signal resources. The method can be executed by a communication device. In other words, the method for transmitting positioning reference signal resources can be executed by software or hardware installed in the communication device. The method for transmitting positioning reference signal resources includes the following steps.

[0039] S302: The communication device sends or receives a positioning reference signal resource, where the symbols occupied by the positioning reference signal resource in a time slot include at least one symbol group, and each symbol group includes one or more consecutive symbols; wherein the at least one symbol group is used for frequency hopping transmission of the positioning reference signal resource, and adjacent symbol groups in the time domain include interval symbols, the interval symbols are not used to transmit the positioning reference signal resource, and the length of the interval symbols is not less than the frequency hopping switching time.

[0040] The communication device may be a terminal (UE) or a network-side device, and the network-side device may be, for example, a base station. The positioning reference signal may be an uplink positioning reference signal, such as an SRS, or a downlink positioning reference signal, such as a DL PRS, a CSI-RS, a TRS, etc. In an embodiment of the present application, when the communication device sends or receives a positioning reference signal resource, the symbols occupied by the positioning reference signal resource in a time slot (slot) include at least one symbol group (symbol group), that is, the symbols occupied by the positioning reference signal resource in a slot (or the symbol distribution in the slot) are composed of at least one symbol group. Each symbol group may contain one symbol (symbol) or multiple consecutive symbols (symbols), and symbol groups adjacent in the time domain have gap symbols (gap symbol(s)). At least one symbol group occupied by a positioning reference signal resource within a time slot can be used for frequency hopping transmission of the positioning reference signal resource (i.e., different symbol groups correspond to different hops). The positioning reference signal resource is not transmitted on the gap symbols between symbol groups, and the length of the gap symbol should be no less than the frequency hopping switching time (i.e., the time between adjacent hop switches). In other words, the length of the gap symbol(s) at least includes the time between adjacent hop switches.

[0041] In this way, since the positioning reference signal can be sent or received through frequency hopping transmission, the effective bandwidth of the positioning reference signal can be improved, thereby improving the positioning accuracy. In addition, since the positioning reference signal resource contains interval symbols between adjacent symbol groups occupied in the time slot, and the length of the interval symbol is not less than the frequency hopping switching time, it can also facilitate RF re-tuning between different frequency hopping times to ensure the effective transmission of the positioning reference signal resource.

[0042] Optionally, for at least one symbol group occupied by the positioning reference signal resource in a time slot, the number of symbols contained in each symbol group is the same, and the relative resource element offset relative RE offset corresponding to the at least one symbol group is the same, or the number of symbols contained in the at least one symbol group has an integer multiple relationship, and the relative RE offset corresponding to the symbol groups with the same number of symbols is the same, and the relative RE offset corresponding to the symbol group with a larger number of symbols includes the relative RE offset corresponding to the symbol group with a smaller number of symbols.

[0043] For example, one time slot contains two symbol groups, namely symbol group 1 and symbol group 2. The number of symbols contained in symbol group 1 is 2, and the number of symbols contained in symbol group 2 is 4 (that is, the number of symbols contained in the two symbol groups has an integer multiple relationship). The relative RE offset corresponding to symbol group 2 is {0, 2, 1, 3}, and the relative RE offset corresponding to symbol group 1 is {0, 2} or {1, 3} (that is, the relative RE offset corresponding to symbol group 2 with a larger number of symbols includes the relative RE offset corresponding to symbol group 1 with a smaller number of symbols).

[0044] Optionally, in at least one of the following cases, the positioning reference signal resource does not perform frequency hopping transmission within the time slot:

[0045] The number of symbols contained in a symbol group is the same as the number of symbols occupied by the positioning reference signal resource in a time slot;

[0046] In one time slot, the positioning reference signal resource includes one symbol group;

[0047] The symbol group is not configured or defined.

[0048] For example, if the positioning reference signal resource is an SRS resource, if the number of symbols contained in a symbol group is equal to the number of symbols in the SRS resource in a time slot, or if the SRS resource contains one symbol group in a time slot, or if no symbol group is configured or defined, then the SRS resource will not be frequency-hopped within the time slot. This makes it easier for communication devices to determine whether frequency-hopping transmission is to be performed within the time slot.

[0049] It should be noted that although the Positioning Reference Signal resource does not perform frequency hopping transmission within a time slot when the Positioning Reference Signal resource contains one symbol group, the Positioning Reference Signal resource can optionally be frequency-hopped between time slots. For example, if a communication device sends or receives Positioning Reference Signal resources in multiple time slots, the multiple time slots are within a period of the Positioning Reference Signal resource, and the Positioning Reference Signal resources in the multiple time slots correspond to the same Positioning Reference Signal resource identifier, then if the Positioning Reference Signal resource contains one symbol group in one of the time slots, the Positioning Reference Signal resource can be frequency-hopped between time slots.

[0050] Optionally, when a first symbol of a positioning reference signal resource and a second symbol of another signal or channel belong to different bandwidth parts (BWPs), the interval between the first symbol and the second symbol should be no less than the frequency hopping switching time. The first symbol is the first symbol occupied by the positioning reference signal resource in a time slot, and the second symbol is the last symbol of the other signal or channel.

[0051] For example, taking the terminal as an example, the terminal performs frequency hopping transmission after transmitting data. If the first symbol of the first frequency hopping and the last symbol of the data transmission are not in the same BWP, then the interval between the last symbol of the data transmission and the first symbol of the first frequency hopping should not be less than the frequency hopping switching time or the BWP switching time.

[0052] Optionally, the position of the symbol group and the number of symbols in the symbol group may not be explicitly reflected, that is, they may be implicitly reflected. For example, the position of the symbol group may be implicitly determined based on the position of the interval symbols between the symbol groups. For details, please refer to the subsequent related content and will not be described in detail here.

[0053] In an embodiment of the present application, when sending or receiving the above-mentioned positioning reference signal resource, the communication device may also determine the mapping relationship between the symbol sequence number within the positioning reference signal resource and the symbol position of the positioning reference signal resource within a time slot (or the symbol position of the symbol group within the time slot) according to at least one of the first method, the second method, the third method and the fourth method. Among them, the symbol sequence number within the positioning reference signal resource can be referred to as "OFDM symbol number within the SRS or PRS resource" (the positioning reference signal resource is an SRS resource or a PRS resource), and the symbol sequence number can specifically be {0, 1, ..., Nsymb-1}, where Nsymb is the number of symbols of the positioning reference signal resource within a time slot. The symbol position of the positioning reference signal resource within a time slot can be the symbol sequence number of all symbols of the positioning reference signal resource within a time slot, and can specifically be {0, 1, ..., Nslot-1}, where Nslot is the number of symbols occupied by a time slot.

[0054] The following will describe the above four methods in detail.

[0055] Regarding the first approach described above, the first approach represents determining a mapping relationship between a symbol number within a positioning reference signal resource and a symbol position of the positioning reference signal resource within a time slot based on at least one of a starting symbol (starting symbol), a first number of symbols (symbol number), a gap duration (gap duration), and a number of symbols in a symbol group (symbol number in a symbol group). The four parameters, starting symbol, first number of symbols, gap duration, and number of symbols in a symbol group, may be determined by protocol agreement, network configuration, and / or terminal selection.

[0056] The start symbol represents the start symbol position of the positioning reference signal resource in the time slot (it is an existing parameter and has the same definition as in the existing protocol), that is, the start symbol of the first symbol group in the time slot.

[0057] The first symbol number represents the number of symbols occupied by the positioning reference signal in a time slot (it is an existing parameter and has the same definition as in the existing protocol).

[0058] The gap duration characterizes the number of gap symbols between adjacent symbol groups, that is, the duration of the gap duration is equal to the duration corresponding to the number of gap symbols between adjacent symbol groups. Optionally, the gap durations between adjacent symbol groups may be the same or different. When the gap durations between adjacent symbol groups are different, the gap duration may include multiple values ​​(or a set of values). Optionally, the gap duration may be represented by a "symbol group interval", where the symbol group interval is the interval between the starting symbols of adjacent symbol groups. When the gap duration is represented by the symbol group interval, specifically, the gap duration may be equal to the difference between the symbol group interval and the number of symbols in the symbol group, that is, the gap duration may be obtained by subtracting the symbol group interval from the number of symbols in the symbol group. It should be noted that when calculating the symbol position of the positioning reference signal resource within the time slot, it is necessary to skip the symbols occupied by the potential gap duration.

[0059] The number of symbols in a symbol group (or also referred to as the duration of a symbol group) represents the number of consecutive symbols contained in a symbol group. Optionally, within a time slot, the number of symbols of different symbol groups is the same or different. In the case where the number of symbols of different symbol groups is different within a time slot, the number of symbols in a symbol group may include multiple values ​​(or a group of values). For example, in one implementation, the number of symbols in a symbol group includes two values, the first value is the number of symbols in the first symbol group, the second value is the number of symbols in the other symbol groups, and the first value is greater than the second value (or the first value is an integer multiple of the second value, and the integer multiple is greater than 1). Generally speaking, the number of symbols in a symbol group may be determined by network configuration or by protocol agreement. In addition, optionally, the number of symbols in a symbol group may also be determined by at least one of the following:

[0060] Determined according to the number of symbols and the number of symbol groups occupied by the positioning reference signal resource in the time slot;

[0061] The repetition factor is determined based on the number of symbols repeated in one time slot. The repetition factor represents the number of repetitions in a time slot contained in a symbol group.

[0062] Specifically, when determining the number of symbols in a symbol group based on the number of symbols occupied by the positioning reference signal resource in a time slot and the number of symbol groups, if the number of symbols in different symbol groups in a time slot is the same, the number of symbols in a symbol group is equal to the ratio of the number of symbols occupied by the positioning reference signal resource in the time slot to the number of symbol groups. When determining the number of symbols in a symbol group based on the repetition factor and the number of symbols repeatedly occupied in a time slot, the number of symbols in a symbol group may be equal to the product of the repetition factor and the number of symbols repeatedly occupied in a time slot, where the number of symbols repeatedly occupied in a time slot may be determined based on a relative RE offset table or configured by the network. Optionally, if the number of symbols repeatedly occupied in a time slot is 1, the number of symbols in a symbol group is equal to the repetition factor.

[0063] Optionally, the symbol sequence number within the symbol group can be expressed as {0, 1, ... the number of symbols within the symbol group - 1}.

[0064] Based on at least one of the above parameters of the starting symbol, the first number of symbols, the interval time, and the number of symbols in the symbol group, determining the mapping relationship between the symbol sequence number in the positioning reference signal resource and the symbol position of the positioning reference signal resource in a time slot can be achieved by the following formula:

[0065] or,

[0066] Wherein, l is the symbol position of the positioning reference signal resource in a time slot, which can be applied to the actual positioning reference signal resource mapping, l0 is the starting symbol position of the positioning reference signal resource in a time slot, l′ is the symbol number in the positioning reference signal resource, l′∈{0,1,…,N symb -1}, N symb To locate the number of symbols of the reference signal resource in a time slot, is the number of symbols in the symbol group, is the interval between symbol groups.

[0067] Optionally, l′ may be used for time-frequency mapping of positioning reference signal resources, such as obtaining a relative RE offset corresponding to the symbol l′ according to a table agreed upon in a protocol.

[0068] Optionally, the number of symbols in the symbol group Can be equal to Where R is the repetition factor, is the number of symbols repeatedly occupied in one time slot. but

[0069] Regarding the second approach described above, this second approach involves determining a mapping relationship between a symbol sequence number within a positioning reference signal resource and a symbol position of the positioning reference signal resource within a time slot based on at least one of a starting symbol, the number of symbol groups, the starting symbol of each symbol group, and the number of symbols in a symbol group. The starting symbol, the number of symbol groups, the starting symbol of each symbol group, and the number of symbols in a symbol group may be determined by protocol agreement, network device configuration, and / or terminal selection.

[0070] The start symbol represents the start symbol position of the positioning reference signal resource in the time slot (it is an existing parameter and has the same definition as in the existing protocol), that is, the start symbol of the first symbol group in the time slot.

[0071] The number of symbol groups refers to the number of symbols occupied by the positioning reference signal resource in the time slot. Optionally, the number of symbol groups can be indicated by a display indicator. Optionally, the number of symbol groups can also be determined based on the number of symbols of the positioning reference signal resource and the number of symbols in each symbol group. For example, if the number of symbols in each symbol group is the same, the number of symbol groups can be equal to the ratio of the number of symbols in the positioning reference signal resource to the number of symbols in the symbol group. Optionally, the number of symbol groups can also be implicitly indicated based on the starting symbol of each symbol group or the number of symbols in each symbol group. For example, if the starting symbol of each symbol group is indicated as [2, 6], it can be determined that there are two symbol groups, and the starting symbols of the two symbol groups are 2 and 6, respectively.

[0072] The starting symbol of each symbol group can be determined by at least one of the following methods:

[0073] Determined by the symbol index of the starting symbol of each symbol group indicated;

[0074] Determined by the starting symbol interval of the indicated adjacent symbol group.

[0075] Optionally, the starting symbol intervals of adjacent symbol groups may be the same. Optionally, the starting symbol intervals of adjacent symbol groups may be determined based on the interval time of adjacent symbol groups. For example, the starting symbol interval of adjacent symbol groups = the interval time of adjacent symbol groups + the number of symbols in the symbol groups.

[0076] The symbol number of a symbol group represents the number of consecutive symbols contained in a symbol group. For details, please refer to the description of the symbol number of a symbol group in the first embodiment above, which will not be repeated here.

[0077] Optionally, the symbol sequence number within the symbol group can be expressed as {0, 1, ..., the number of symbols within the symbol group-1}.

[0078] Based on at least one of the above parameters including the starting symbol, the number of symbol groups, the starting symbol of each symbol group, and the number of symbols in the symbol group, determining the mapping relationship between the symbol sequence number in the positioning reference signal resource and the symbol position of the positioning reference signal resource in a time slot can be achieved using the following formula:

[0079] Wherein, l′ is the symbol number in the positioning reference signal resource, which can be used for the time-frequency mapping of the positioning reference signal resource, l′∈{0,1,…,N symb -1}, N symb is the number of symbols of the positioning reference signal resource in a time slot, l is the symbol position of the positioning reference signal resource in a time slot, l0 is the starting symbol position of the positioning reference signal resource in a time slot, is the starting symbol interval of the symbol group. Here, it is assumed that the starting symbol intervals of the symbol groups are the same.

[0080] Optionally, l′ may be used for time-frequency mapping of positioning reference signal resources, such as obtaining a relative RE offset corresponding to the symbol l′ according to a table agreed upon in a protocol.

[0081] Regarding the third approach described above, this approach involves determining a mapping relationship between a symbol number within a positioning reference signal resource and a symbol position within a time slot of the positioning reference signal resource based on at least one of a starting symbol, a second symbol number, a starting position of an interval symbol, an interval time, and a gap number (gap number). The starting symbol, the second symbol number, the starting position of an interval symbol, the interval time, and the gap number may be determined by a protocol, coordinated by a network device, and / or selected by a terminal.

[0082] At least one of the starting position, interval duration, and gap number of the interval symbol is used to determine the symbol position of the interval symbol within the positioning reference signal resource or time slot. Therefore, at least one of the starting position, interval duration, and gap number of the interval symbol can be replaced by the following expression: "the symbol position of the interval symbol within the positioning reference signal resource or time slot."

[0083] Optionally, the symbol position of a gap symbol within a positioning reference signal resource or a time slot can be determined using a 'relative RE offset mapping table,' eliminating the need to specifically configure 'at least one of the starting position of the gap symbol, the gap time, and the number of gaps (gap number)' to determine the symbol position of the gap. For example, the protocol specifies a mapping table (such as the first mapping table described below) between the symbol number, comb structure size, and relative RE offset within a positioning reference signal resource. If the number of symbols in the positioning reference signal resource includes a gap symbol, or the symbol number within the positioning reference signal resource includes a gap symbol, the relative RE offset value corresponding to the gap symbol in the first mapping table is set to invalid, indicating that the corresponding symbol is a gap symbol, the positioning reference signal resource is not transmitted, and RE mapping for the positioning reference signal resource is not performed.

[0084] The start symbol represents the start symbol position of the positioning reference signal resource in the time slot (it is an existing parameter and has the same definition as in the existing protocol), that is, the start symbol of the first symbol group in the time slot.

[0085] The second symbol number represents the number of symbols occupied by the positioning reference signal resource in a time slot, and this symbol number includes the number of spaced symbols in the positioning reference signal resource. That is, the second symbol number represents the number of symbols occupied by the positioning reference signal in a time slot and the number of spaced symbols in the time slot. Alternatively, the second symbol number represents the number of symbols occupied by the positioning reference signal in a time slot (ignoring the spaced symbols, which is an existing parameter and has the same definition as in existing protocols).

[0086] The interval time characterizes the number of interval symbols between adjacent symbol groups. Optionally, the interval times between adjacent symbol groups may be the same or different. In the case where the interval times between adjacent symbol groups are different, the interval time may include multiple values ​​(or a set of values). It should be noted that if the second number of symbols represents the number of symbols occupied by the positioning reference signal in the time slot, when calculating the symbol position of the positioning reference signal resource in the time slot, it is necessary to skip the symbols occupied by the potential interval time. Optionally, the interval time may be represented by a "symbol group interval", where the symbol group interval is the interval between the starting symbols of adjacent symbol groups. When the interval time is represented by the symbol group interval, specifically, the interval time may be equal to the difference between the symbol group interval and the number of symbols in the symbol group, that is, the interval time may be obtained by subtracting the symbol group interval from the number of symbols in the symbol group.

[0087] The starting position of the interval symbol represents the symbol starting position of one or more intervals within a time slot (or may also be referred to as the starting symbol position). Optionally, when there is one interval within a time slot, the starting position of the interval symbol may be the offset of the interval relative to the first symbol of the time slot. Alternatively, the starting position of the interval symbol may be the offset of the interval relative to the first symbol of the positioning reference signal resource. Alternatively, the starting position of the interval symbol is the offset of the interval relative to the symbol of the previous or next positioning reference signal resource of the interval (optionally, the offset relative to the previous positioning reference signal resource symbol, that is, the gap position is obtained according to the previous positioning reference signal symbol position of the gap (such as indicating the previous positioning reference signal symbol index of the gap), and optionally, the default offset is 1 symbol; the offset relative to the next positioning reference resource symbol (such as indicating the next positioning reference signal symbol index of the gap), that is, the gap position is obtained according to the next positioning reference signal symbol position of the gap, and optionally, the default number of symbols of the offset is the number of symbols of the gap symbol), where the symbol index of the first or last positioning reference signal resource of the interval can be a symbol index within the time slot or a symbol index within the positioning reference signal resource.

[0088] Optionally, in the case where there are multiple intervals in a time slot, the starting position of the interval symbol may include the starting positions of the multiple interval symbols, wherein the symbol starting position of each interval includes at least one of the following:

[0089] An offset relative to the first symbol of a time slot, or an offset relative to the first symbol of a positioning reference signal resource, or an offset relative to the previous or next symbol of the positioning reference signal resource;

[0090] offset relative to the first interval;

[0091] The offset relative to the previous interval.

[0092] Specifically, among multiple intervals, the symbol starting position of the first interval is determined in the same manner as the starting symbol position of the interval when the time slot contains an interval. That is, the symbol starting position of the first interval can be the offset of the first interval relative to the first symbol of the time slot, the offset of the first interval relative to the first symbol of the positioning reference signal resource, or the offset of the first interval relative to the symbol of the positioning reference signal resource before or after the first interval. Among multiple intervals, the symbol starting positions of intervals other than the first interval can be determined in various ways: one is to use the same method as the symbol starting position of the first interval; a second is to use the offset of the other intervals relative to the first interval as the symbol starting position of the other intervals; and a third is to use the offset of the other intervals relative to the previous interval to determine the symbol starting position of the other intervals. Optionally, if multiple intervals are equally spaced, then given the spacing between adjacent intervals, the symbol starting positions of the remaining intervals can be determined based on the symbol starting position of the first interval. Optionally, if the position of a symbol group is not explicitly indicated, the position of the symbol group can also be implicitly determined based on the symbol starting position of the interval.

[0093] The number of intervals represents the number of intervals between symbols occupied by positioning reference signal resources in a time slot, or the number of intervals contained in a time slot.

[0094] Optionally, when the above-mentioned second symbol number represents the number of symbols occupied by the positioning reference signal resource in the time slot and the symbol number includes the symbol number of the interval symbol in the positioning reference resource, when the communication device determines the mapping relationship between the symbol sequence number in the positioning reference signal resource and the symbol position of the positioning reference signal resource in a time slot according to the third method, the symbol sequence number in the positioning reference signal resource includes the symbol sequence number of the interval symbol in the time slot, and the interval symbol in the time slot needs to be excluded, that is, when the communication device determines the symbol of the positioning reference signal resource actually transmitted based on the starting symbol and the second symbol number, it needs to exclude the interval symbol in the time slot.

[0095] Optionally, when determining the mapping relationship between the symbol sequence number in the positioning reference signal resource and the symbol position of the positioning reference signal resource in a time slot based on at least one parameter among the above-mentioned starting symbol, the number of second symbols, the starting position of the interval symbol, the interval time, and the interval number, it can be implemented by the following formula:

[0096] or,

[0097] Wherein, l is the symbol position of the positioning reference signal resource in a time slot, which can be applied to the actual positioning reference signal resource mapping, l0 is the starting symbol position of the positioning reference signal resource in a time slot, l′ is the symbol number in the positioning reference signal resource, l′∈{0,1,…,N symb -1}, N symb is the number of symbols of the positioning reference signal resource in a time slot (here the second symbol number N symb Indicates the number of symbols occupied by the positioning reference signal in the time slot, excluding gap symbols; when determining the mapping relationship between l′ and l, the influence of gap symbols must be considered). is the interval between symbol groups, is the starting symbol position of the first interval. Here, it can be assumed that the starting symbol position of the first interval is the offset or It is the position of a positioning reference signal resource symbol after the first interval, and multiple intervals are distributed at equal intervals, that is, the intervals between the multiple intervals are the same or the positioning reference signal resources of the same symbol are spaced apart.

[0098] For example, the symbols in the positioning reference signal resource need to be l′∈{0,1,2,3,4,5}, and appear before the symbols with symbol numbers 2 and 4 at equal intervals. The value can be 2, and the position of the next positioning reference signal resource symbol after the interval is used to represent the interval position. Then, the mapping relationship between the symbol number in the positioning reference signal resource and the symbol number in the time slot is obtained by the above formula.

[0099] Alternatively, the mapping relationship between the symbol number in the positioning reference signal resource and the symbol position of the positioning reference signal resource in a time slot is expressed by the following formula, where l0 is the starting symbol position of the positioning reference signal resource in a time slot, l′ is the symbol number in the positioning reference signal resource, and l′∈{0,1,…,N symb -1}, N symb is the number of symbols of the positioning reference signal resource in a time slot, and this number of symbols includes the number of symbols of the spacing symbols in the positioning reference signal resource. Then, the symbol number l′ in the positioning reference signal resource corresponds to the symbol position l in the time slot (the symbol position in the slot can be used in actual positioning reference signal resource mapping, such as determining the relative RE offset corresponding to the symbol number symbol l′ in the positioning reference signal resource) is:

[0100] l=l'+l0; or, l=l0,l0+1,…,l0+N symb -1;

[0101] Here, if symbol 1 is a space symbol, symbol 1 is not used (or symbol 1 does not transmit positioning reference signal resources, or is not used for positioning reference signal resource mapping, or symbol 1 is invalid).

[0102] Regarding the fourth approach described above, this approach represents determining a mapping relationship between a symbol sequence number within a positioning reference signal resource and a symbol position of the positioning reference signal resource within a time slot using a bitmap. The length of the bitmap is the number of symbols within a time slot. Bits in the bitmap with a value of 1 are used for transmitting the positioning reference signal resource, and bits with a value of 0 are not used for transmitting the positioning reference signal resource.

[0103] Optionally, in the bitmap, symbol groups are represented by consecutive bits with values ​​of 1, and intervals between symbol groups are represented by bits with values ​​of 0 between the symbol groups.

[0104] Optionally, the symbol sequence number in the positioning reference signal resource is the symbol sequence number obtained by sequentially arranging the bits with a value of 1 in the bitmap; and / or, the symbol sequence number in the symbol group is the symbol sequence number obtained by sequentially arranging consecutive bits with a value of 1 in the symbol group.

[0105] The above describes in detail how a communication device determines the mapping relationship between the symbol sequence number within a positioning reference signal resource and the symbol position of the positioning reference signal resource within a time slot. After determining this mapping relationship, the communication device can know the time-frequency mapping of the positioning reference signal resource (for example, the relative RE offset corresponding to the symbol sequence number within the positioning reference signal resource), thereby implementing frequency hopping transmission of the positioning reference signal resource.

[0106] Optionally, when the communication device determines the mapping relationship between the symbol sequence number in the positioning reference signal resource and the symbol position of the positioning reference signal resource in a time slot through at least one of the above four methods, it can further determine the frequency hopping count in the time slot based on at least one of the number of symbols in the above symbol group, the symbol sequence number in the positioning reference signal resource, the sequence number of the symbol group, the interval time, and the starting position of the interval symbol. The frequency hopping count in the time slot can be used to determine the positioning reference signal narrowband corresponding to the frequency hopping transmission.

[0107] Optionally, as an embodiment, the frequency hopping count within a time slot may be determined by the following formula:

[0108] Where l′ is the symbol number in the positioning reference signal resource, l′∈{0,1,…,N symb -1}, N symb To locate the number of symbols of the reference signal resource in a time slot, is the number of symbols in the symbol group.

[0109] Optionally, as an embodiment, the frequency hopping count in a time slot may also be determined by the following formula: n=n group ;

[0110] Among them, n group is the sequence number of the symbol group within the time slot.

[0111] In an embodiment of the present application, when a communication device performs frequency hopping transmission on a positioning reference signal resource within a time slot, the communication device may also determine a time-frequency mapping pattern of the positioning reference signal resource within the time slot, that is, determine a relative RE offset. Specifically, the communication device may determine the time-frequency mapping pattern of the positioning reference signal resource within the time slot in at least one of the following two ways:

[0112] First way:

[0113] The communication device determines, based on a first mapping table between a symbol number within the positioning reference signal resource, a comb structure size, and a relative RE offset, a relative RE offset corresponding to a symbol of the positioning reference signal resource under different comb structure sizes during frequency hopping transmission (or, a relative RE offset corresponding to each symbol in each symbol group under different comb structure sizes).

[0114] Second way:

[0115] The communication device determines, based on a second mapping table between symbol numbers within the symbol group, comb structure sizes, and relative RE offsets, relative RE offsets corresponding to symbols of the symbol group under different comb structure sizes during frequency hopping transmission (or, relative RE offsets corresponding to each symbol in each symbol group under different comb structure sizes). Furthermore, considering that the symbols of the symbol group are symbols of positioning reference signal resources, determining the relative RE offsets corresponding to symbols of the symbol group under different comb structure sizes during frequency hopping transmission can also be expressed as 'determining the relative RE offsets corresponding to positioning reference signal symbols under different comb structure sizes during frequency hopping transmission.'

[0116] The two methods of determining the time-frequency mapping pattern are described below respectively.

[0117] In the first approach described above, the first mapping table may optionally be a newly added mapping table dedicated to frequency hopping transmission. In the first mapping table, for any comb structure size and any number of positioning reference signal resource symbols, one or more relative RE offsets may be included. Furthermore, for a specific comb structure size and number of positioning reference signal resource symbols, if multiple relative RE offsets exist, the network device may indicate one of the multiple relative RE offsets, or the terminal may determine one of the multiple relative RE offsets based on a protocol agreement.

[0118] For example, when the comb structure size is 4 and the number of symbols of the positioning reference signal resource is 8, the corresponding relative RE offset may be {0, 2, 1, 3, 0, 2, 1, 3}, {0, 2, 0, 2, 0, 2, 0, 2}, etc., and the network side device can indicate one of them.

[0119] For another example, the terminal may determine one of the two options based on the protocol agreement, by using the relationship between the relative RE offsets between symbol groups (see the aforementioned description of the relative RE offsets of symbol groups). If the protocol stipulates that the corresponding relative RE offsets in different symbol groups are the same, the terminal may determine the relative RE offset that meets this relationship.

[0120] Optionally, when the first mapping table is a newly added mapping table, the number of symbols of the positioning reference signal resource in the time slot may not be limited to the number of symbols of the current positioning reference signal resource in the time slot (i.e., 1, 2, 4, 8, 12). For example, the number of symbols of the positioning reference signal resource in the time slot includes, but is not limited to, at least one of {1, 2, 3, 4, 5, 6, 8, 12}.

[0121] Optionally, the first mapping table may reuse an existing non-frequency hopping mapping table, which is a mapping table for mapping symbol numbers, comb structure sizes, and relative RE offsets within positioning reference signal resources when not used for frequency hopping transmission. Alternatively, the first mapping table may be a mapping table obtained by expanding the non-frequency hopping mapping table, wherein the expansion based on the non-frequency hopping mapping table may include adding new relative RE offsets corresponding to the number of symbols and comb structure sizes already in the non-frequency hopping mapping table, and / or adding a new number of symbols and a new comb structure, as well as relative RE offsets corresponding to the new number of symbols and new comb size, to the non-frequency hopping mapping table. Optionally, when adding a new number of symbols to the non-frequency hopping mapping table, the newly added number of symbols includes, but is not limited to, at least one of {3, 5, 6}.

[0122] When the first mapping table reuses or extends the non-frequency hopping mapping table, optionally, for any comb structure size and any number of symbols of a positioning reference signal resource in the first mapping table, the corresponding relative RE offset may include one or more. Furthermore, for a specific comb structure size and number of symbols of a positioning reference signal resource, if multiple relative RE offsets exist, the network device may indicate one of the multiple relative RE offsets, or the terminal may determine one of the multiple relative RE offsets according to a protocol agreement.

[0123] Optionally, if the number of symbols in the positioning reference signal resource includes a gap symbol, or the symbol sequence number within the positioning reference signal resource includes a gap symbol, the communications device needs to ignore the relative RE offset corresponding to the gap symbol when determining the relative RE offset according to the first mapping table. Alternatively, if the number of symbols in the positioning reference signal resource includes a gap symbol, or the symbol sequence number within the positioning reference signal resource includes a gap symbol, the value of the relative RE offset corresponding to the gap symbol in the first mapping table is set to invalid, indicating that the corresponding symbol does not transmit the positioning reference signal resource and RE mapping of the positioning reference signal resource is not performed.

[0124] With respect to the second approach described above, optionally, for any comb structure size and any symbol number in the second mapping table, the corresponding relative RE offset may include one or more. Furthermore, for a specific comb structure size and symbol number in a symbol group, if multiple relative RE offsets exist, the network device may indicate one of the multiple relative RE offsets, or the terminal may determine one of the multiple relative RE offsets according to a protocol agreement.

[0125] Optionally, in the second mapping table, the relative RE offset is the relative RE offset of a symbol in a symbol group relative to the first symbol in the symbol group, or the relative RE offset of a symbol in a symbol group relative to the RE of the first symbol of a positioning reference signal resource in a time slot.

[0126] Optionally, the RE offset (i.e., Comb offset) of the first symbol of each symbol group in the positioning reference signal resource is the same. Alternatively, the RE offset (i.e., Comb offset) of the first symbol of each symbol group in the positioning reference signal resource may be different. In different cases, the RE offset of the first symbol of each symbol group is indicated by the network side device or agreed upon by the protocol.

[0127] In an embodiment of the present application, when sending or receiving a positioning reference signal resource, a communication device may send or receive the positioning reference signal resource over multiple time slots to implement frequency hopping transmission across time slots. The multiple time slots are within a period of the positioning reference signal resource, and the positioning reference signal resources in the multiple time slots correspond to the same positioning reference signal resource identifier (i.e., positioning reference signal resource ID).

[0128] Optionally, the number of multiple time slots can be indicated by a network device, agreed upon by a protocol, and / or selected by a terminal. If the positioning reference signal is an uplink positioning reference signal, the multiple time slots include uplink time slots (UL slots), or uplink time slots and flexible time slots; if the positioning reference signal is a downlink positioning reference signal, the multiple time slots include downlink transmission time slots, or downlink time slots and flexible time slots.

[0129] Optionally, if the number of the multiple time slots is N, the time slots in the positioning reference signal resource are numbered 0, 1, 2…N-1.

[0130] Optionally, multiple time slots of the positioning reference signal resource may be referred to as a “positioning reference signal burst”.

[0131] Optionally, the time-frequency mapping patterns of the multiple time slots are the same.

[0132] Optionally, the distribution of the multiple time slots in the time domain can be: the multiple time slots can be continuous or non-continuous in the time domain. The multiple time slots that are continuous in the time domain can be continuous time slots that can be used for UL transmission, continuous pure UL slots, or absolutely continuous time slots (regardless of the time slot format). The multiple time slots that are non-continuous in the time domain can be that there are gaps between the multiple time slots.

[0133] Optionally, the intervals between multiple time slots may be the same or different. In the case where the intervals between multiple time slots are the same, the position of each time slot may be determined based on the time slot offset of the starting time slot, and the time slot offset or time slot gap of adjacent time slots, wherein the slot gap does not include the time slot for transmitting positioning reference signal resources. For example, a time slot gap of adjacent time slots of 0 is equivalent to an adjacent time slot offset = 1. In the case where the intervals between multiple time slots are different, the position of each time slot may be determined based on the time slot offset of each time slot. Optionally, the time slot offset may be a periodic offset, or a time slot offset relative to the slot where the downlink control information (DCI) is located, or a time slot offset relative to an offset indicated by the DCI. Alternatively, in the case where the intervals between multiple time slots are different, the position of each time slot may also be determined based on the time slot offset of the starting time slot and the time slot offsets of other time slots relative to the starting time slot. Optionally, the offset of the starting time slot is a periodic offset, or a time slot offset relative to the slot where the DCI is located, or a slot offset relative to a certain offset time indicated by the DCI.

[0134] Optionally, the above-mentioned time slot interval or time slot offset may be an absolute interval or offset (regardless of time slot format), or an interval or time slot offset including only UL slots, or a gap or offset including UL slots and flexible time slots.

[0135] In an embodiment of the present application, when a communication device sends or receives positioning reference signal resources on multiple time slots, the multiple time slots may include at least one time slot group, that is, the multiple time slots may be composed of at least one time slot group. The at least one time slot group is used for frequency hopping transmission of positioning reference signal resources between time slots (that is, different time slot groups correspond to different hops, and no frequency hopping occurs within a time slot group). There is an interval between adjacent time slot groups in the time domain that is not less than the frequency hopping switching time. Each time slot group contains at least one time slot, and the at least one time slot is arranged sequentially. The specific number of the at least one time slot can be indicated by the network side device, and / or agreed upon by the protocol, and / or selected by the terminal.

[0136] Optionally, in at least one of the following cases, the positioning reference signal resource does not perform frequency hopping transmission between time slots:

[0137] The number of time slots contained in a time slot group is the same as the number of time slots of positioning reference signal resources in a period;

[0138] The positioning reference signal resources in one period include one time slot group;

[0139] Timeslot groups are not configured or defined.

[0140] That is, if the number of time slots contained in a time slot group is equal to the number of time slots of the positioning reference signal resource in one period, or the positioning reference signal resource in one period contains one time slot group, or the time slot group is not configured or defined, then the positioning reference signal resource does not perform frequency hopping transmission between time slots.

[0141] Optionally, when a time slot group includes multiple time slots, the multiple time slots in the time slot group have the same time-frequency mapping pattern within the time slots.

[0142] Optionally, when a time slot group includes multiple time slots, the multiple time slots in the time slot group are continuous in the time domain. Continuous time slots are continuous time slots that can be used for UL transmission, or continuous pure UL slots, or absolutely continuous time slots (regardless of time slot format).

[0143] Alternatively, in the case where a time slot group contains multiple time slots, the multiple time slots in a time slot group may also be discontinuous in the time domain, that is, there is a gap between the multiple time slots in a time slot group. Optionally, the interval (or time slot offset) of adjacent time slots may be the same, and the interval (or time slot offset) may be specifically indicated by the network side device, and / or agreed upon by the protocol, and / or selected by the terminal. The time slot interval does not include the time slot for transmitting positioning reference signal resources. For example, the time slot interval of adjacent time slots is 0, which is equivalent to the adjacent time slot offset = 1. Optionally, the time slot interval or time slot offset here can be an absolute gap or offset (regardless of the slot format), or, only include the gap or slot offset of the UL slot, or, include the gap or offset of the UL slot and the flexible time slot.

[0144] Optionally, the interval between time slot groups and the interval between time slots within a time slot group may be the same as or different from each other.

[0145] Optionally, the interval between time slot groups can be represented by a gap slot. The gap slot can be indicated by network equipment, and / or agreed upon by the protocol, and / or selected by the terminal. Optionally, the intervals between adjacent time slot groups are the same. Optionally, the gap between time slot groups can be obtained by subtracting the time slot offset between the time slot groups from the duration of the time slot group.

[0146] Optionally, the time slots within multiple time slot groups are distributed in the same manner, and the time domain position of each time slot in the multiple time slot groups is determined according to the interval of the time slots within each time slot group and the interval between the time slot groups, that is, the time domain position of each time slot can be determined according to the slot gap within each time slot group and the slot gap between the time slot groups.

[0147] Optionally, when the multiple time slots include at least one time slot group, the communications device may further determine an inter-time slot frequency hopping count based on at least one of the number of time slots in the time slot group, a time slot sequence number within the positioning reference signal resource, and a time slot group sequence number. The inter-time slot frequency hopping count is used to determine the positioning reference signal narrowband corresponding to each frequency hopping transmission.

[0148] Optionally, as an embodiment, the frequency hopping count between time slots may be determined by the following formula:

[0149] Where n′ is the slot number in the positioning reference signal resource, and n′∈{0,1,…,N slot -1}, N slot is the number of time slots occupied by the positioning reference signal resource, is the number of time slots in the time slot group.

[0150] Optionally, n′ may also be calculated according to the time slot where the positioning reference signal resource is located.

[0151] In an embodiment of the present application, when a communication device sends or receives positioning reference signal resources on multiple time slots, if the positioning reference signal resources are configured with frequency hopping within a time slot and the positioning reference signal resources include multiple time slots, the communication device performs frequency hopping transmission within a time slot and between time slots based on the symbol distribution of the positioning reference signal resources in each time slot (or the symbols occupied in each time slot).

[0152] Optionally, the symbol distribution of the positioning reference signal resources in multiple time slots is the same. In this case, the symbol distribution of multiple time slots can be determined based on the symbol distribution of any time slot.

[0153] Optionally, the symbol distribution of the positioning reference signal resource in multiple time slots may also differ. In one implementation, the symbol distribution for all time slots may be determined based on the symbols occupied by the positioning reference signal resource in each time slot. Alternatively, the symbol distribution for all time slots may be determined based on the starting symbol of the positioning reference signal resource in each time slot (if only the starting symbol differs, while the other symbol distributions remain the same).

[0154] Optionally, the symbol distribution of positioning reference signal resources within multiple time slots can be determined based on symbol groups and the intervals between symbol groups. Specifically, in one implementation, the positions of symbol groups in the current time slot and other time slots can be determined based on the position of the first symbol group in the first time slot of the positioning reference signal resource and the intervals between symbol groups. Generally, in two adjacent time slots in which positioning reference signal resources are transmitted, the interval between the first symbol of the positioning reference signal resource in the latter time slot and the last symbol of the positioning reference signal resource in the previous time slot is equal to the interval between symbol groups. Optionally, this interval is no less than the frequency hopping switching time.

[0155] When determining the symbol distribution of positioning reference signal resources within multiple time slots based on symbol groups and symbol group intervals, if a determined symbol group happens to cross a time slot boundary, taking the case where the first symbol group crosses the first time slot (current time slot) and the second time slot (next time slot) as an example, then:

[0156] If part of the first symbol group is in the first time slot and part is in the second time slot, then:

[0157] The first symbol group may be transmitted according to the symbol distribution of the first symbol group in the first time slot and the second time slot, that is, the first symbol group is transmitted according to the determined symbol position of the first symbol group;

[0158] Alternatively, the first symbol group is transmitted at the start symbol of the second time slot, that is, the first symbol group is not transmitted in the first time slot, but is transmitted in the second time slot;

[0159] Alternatively, the first symbol group is transmitted in the third symbol of the second time slot, and the position of the third symbol is the same as the position of the first symbol transmitting the positioning reference signal resource in the first time slot;

[0160] Alternatively, the first symbol group is transmitted in the fourth symbol of the second time slot, and the position of the fourth symbol is the same as the position of the first symbol of the positioning reference signal resource transmitted in the first time slot of the positioning reference signal resource;

[0161] Alternatively, the first symbol group is transmitted according to an instruction of a network-side device or a protocol agreement;

[0162] If the first symbol group is entirely located in the second time slot, then:

[0163] The first symbol group may be transmitted according to the symbol distribution of the first symbol group in the second time slot, that is, the first symbol group may be transmitted according to the determined symbol position of the first symbol group.

[0164] In an embodiment of the present application, when the communication device performs frequency hopping transmission within a time slot and between time slots, it can also determine the frequency hopping count within a time slot and between time slots based on at least one of the number of symbols in the symbol group, the symbol sequence number in the positioning reference signal resource, the sequence number of the symbol group, the number of time slots in the time slot group, the time slot sequence number in the positioning reference signal resource, and the sequence number of the time slot group. The frequency hopping count is used to determine the positioning reference signal narrowband corresponding to each frequency hopping transmission.

[0165] Optionally, as an embodiment, the frequency hopping count within a time slot and between time slots may be determined by the following formula:

[0166] Where l′ is the symbol number in the positioning reference signal resource, l′∈{0,1,…,N symb -1}, N symb To locate the number of symbols of the reference signal resource in a time slot, is the number of symbols in the symbol group, n′ is the time slot number in the positioning reference signal resource, n′∈{0,1,…,N slot -1}, N slot The number of time slots occupied by positioning reference signal resources.

[0167] Optionally, n′ can be calculated according to the time slot where the positioning reference signal resource is located.

[0168] To facilitate understanding of how a communication device determines the mapping relationship between a symbol number within a positioning reference signal resource and a symbol position of the positioning reference signal resource within a time slot in an embodiment of the present application, as well as a mapping table for determining a relative RE offset, the following is described using Embodiments 1 to 3 as examples.

[0169] Embodiment 1: Determining a mapping relationship between a symbol sequence number within a positioning reference signal resource and a symbol position within a time slot of the positioning reference signal resource based on at least one of a start symbol, a first symbol number, an interval time, and a symbol number of a symbol group (i.e., a first method)

[0170] In one implementation, if the intervals between adjacent symbol groups are different (the intervals may include multiple values ​​or a set of values), the mapping relationship between the symbol sequence number within the positioning reference signal resource and the symbol position of the positioning reference signal resource within a time slot may be determined by the following formula:

[0171] Where l is the symbol position of the positioning reference signal resource in a time slot, l0 is the starting symbol position of the positioning reference signal resource in a time slot, l′ is the symbol number in the positioning reference signal resource, l′∈{0,1,…,N symb -1}, N symb To locate the number of symbols of the reference signal resource in a time slot, is the number of symbols in the symbol group, The interval time with index n ( Corresponding to the first gap, corresponds to the second gap, and so on, the number of gaps = the number of symbol groups - 1). Optionally, It can be configured by network side equipment, and / or agreed upon by protocol, and / or selected by the terminal.

[0172] In one implementation, if different symbol groups within a time slot have different numbers of symbols, that is, the number of symbols in a symbol group includes multiple values ​​or a set of values, the mapping relationship between the symbol sequence number within the positioning reference signal resource and the symbol position of the positioning reference signal resource within a time slot can be determined by the following formula:

[0173] Where l is the symbol position of the positioning reference signal resource in a time slot, l0 is the starting symbol position of the positioning reference signal resource in a time slot, l′ is the symbol number in the positioning reference signal resource, l′∈{0,1,…,N symb -1}, N symb is the number of symbols in a time slot of the positioning reference signal resource, n′ is the group number of the symbol group corresponding to the symbol number l′ in the positioning reference signal resource (starting from 0, if the number of symbols in the symbol group is the same, ), is the number of symbols in the symbol group with index n ( Corresponding to the first symbol group, Corresponding to the second symbol group, and so on), The interval time with index n.

[0174] Optionally, the mapping relationship between n′ and l′ can be obtained according to a table or formula. For example, the mapping relationship between n′ and l′ can be determined according to the following Table 1:

[0175] Table 1

[0176] Alternatively, if multiple intervals are the same (or there is only one interval), the above formula can be adjusted to:

[0177] Optionally, in a special case, The number of symbols in the symbol group may be different from that in the other symbol groups, while the number of symbols in the other symbol groups is the same. The value of is greater than the number of symbols in the remaining symbol groups and is an integer multiple of the number of symbols in the remaining symbol groups.

[0178] Embodiment 2: Determining relative RE offsets corresponding to different numbers of positioning reference signal resource symbols (or symbol numbers within positioning reference signal resources) under different comb structure sizes during frequency hopping transmission according to the first mapping table

[0179] In one embodiment, if the first mapping table is a mapping table dedicated to frequency hopping transmission, that is, it is not shared with an existing table and is a new table for frequency hopping transmission, then the first mapping table may be as shown in Table 2 below:

[0180] Table 2

[0181] Among them, K TC is the comb size, N symb The number of symbols of the positioning reference signal resource in a time slot is the relative RE offset.

[0182] At a specific comb size (K TC ) and the number of symbols (N symb ) (such as K TC =4,N symb =8, or K TC =8,N symb =8), if there are multiple relative RE offsets, the network indicates one of them, or the UE determines one according to the protocol.

[0183] Among them, UE determines one according to the protocol, such as K TC =8,Nsymb =8, there are two relative RE offsets. Based on the relationship between the relative RE offsets between symbol groups during frequency hopping (e.g., the relative RE offsets of multiple symbols are the same), the UE can determine to use {0, 4, 2, 6, 0, 4, 2, 6} as the relative RE offset during frequency hopping.

[0184] Optionally, the comb structure size K corresponding to the time-frequency mapping pattern shown in FIG4(a) is TC is 2, the number of symbols is N symb The RE offset {0,0,0,0,0} is 6. The comb structure size K corresponding to the time-frequency mapping pattern shown in Figure 4(b) TC is 2, the number of symbols is N symb The RE offset is {0,2,0,2,0,2}, which is 5. The interval symbol is 2.

[0185] In one embodiment, if the first mapping table is the same as the non-frequency hopping mapping table, then:

[0186] (1) The first mapping table fully reuses the non-frequency hopping mapping table without any extension. This table uses the supported relative RE offset to determine the time-frequency mapping pattern for one slot when frequency hopping is used. For example, patterns with repetition can be used when frequency hopping, such as {0,1,0,1}, {0,2,1,3,0,2,1,3}, {0,2,1,3,0,2,1,3,0,2,1,3}, and {0,4,2,6,1,5,3,7,0,4,2,6}.

[0187] The first mapping table at this time may be as shown in Table 3:

[0188] Table 3

[0189] Among them, K TC is the comb size, N symb The number of symbols of the positioning reference signal resource in a time slot is the relative RE offset.

[0190] (2) The first mapping table expands the existing table by adding new relative RE offsets based on the existing comb structure size and number of symbols, and / or adding a new number of symbols and the corresponding relative RE offsets for the new number of symbols. An exemplary table is shown in Table 4 below, where the bolded items indicate the newly added relative RE offsets.

[0191] Table 4

[0192] Among them, K TC is the comb size, N symb The number of symbols of the positioning reference signal resource in a time slot is the relative RE offset. In Table 4, at a specific comb size (K TC ) and the number of symbols (N symb ) (such as K TC =4,N symb =8), if there are multiple relative RE offsets, the network indicates one of them, or the UE determines one according to the protocol.

[0193] Optionally, another implementation of the first mapping table. When the positioning reference signal resource includes an interval symbol in a time slot, when determining the relative RE offset according to the first mapping table, the value of the relative RE offset corresponding to the interval symbol needs to be ignored. The first mapping table is shown in Table 5 below:

[0194] Table 5

[0195] Among them, K TC is the comb size, N symb is the number of symbols of the positioning reference signal resource in a time slot) is the relative RE offset. In Table 5, K TC is 2, N symb Taking 6 as an example, the network indicates that the gap symbol is 2,3. Then, although the relative RE offset is {0,1,0,1,0,1}, the symbol number actually used for transmission is {0,1,4,5}, and the relative RE offset {0,1} corresponding to the middle gap symbol needs to be ignored.

[0196] In another implementation, the relative RE offset of the gap symbol can be specially processed, such as 'x', so that the relative RE offset value corresponding to the gap symbol can be ignored, or the relative RE offset value corresponding to the gap symbol is invalid. As shown in Table 6:

[0197] Table 6

[0198] Among them, K TC is the comb size, N symb The number of symbols of the positioning reference signal resource in a time slot is the relative RE offset. TC is 2, N symb Taking 6 as an example, the Relative RE offset corresponding to the gap symbol is represented by a special symbol 'x', indicating that the corresponding Relative RE offset is invalid.

[0199] Embodiment 3: Determining, according to the second mapping table, relative RE offsets corresponding to symbol numbers of different symbol groups under different comb structure sizes during frequency hopping transmission (Relative RE offsets corresponding to each symbol in each symbol group under different comb structure sizes)

[0200] In one implementation, the second mapping table may be as shown in Table 7 below:

[0201] Table 7

[0202] Among them, K TC is the comb size, is the number of symbols in the symbol group, It is the relative RE offset of a symbol in the symbol group relative to the first symbol RE in the symbol group.

[0203] Optionally, the RE offset (ie, Comb offset) of the first symbol in each symbol group in the positioning reference signal resource is the same.

[0204] Optionally, for a symbol, at a specific comb size (K TC ) and symbol number In this case, if there are multiple relative RE offsets, the network indicates one of them, or the UE determines one according to the protocol agreement.

[0205] Optionally, in an embodiment of the present application, the relative RE offset corresponding to the positioning reference signal symbol number or the symbol number of the symbol group under different comb structure sizes of the first and / or second mapping tables can be expressed in the form of the following Table 8 in addition to the above expression form, and the meaning of the table remains unchanged.

[0206] Table 8

[0207] l′ represents the symbol number in the positioning reference signal resource, K TC Indicates the size of the comb structure. Each symbol number can find a corresponding relative RE offset. The relative RE offset values ​​here are equivalent to the relative RE offset values ​​in the previous table. For example, in Table 8, under comb-4,4 symbol, the relative RE offset values ​​corresponding to symbol numbers 0, 1, 2, and 3 are 0, 2, 1, and 3, respectively, which is equivalent to {0, 2, 1, 3} in the previous table.

[0208] In an embodiment of the present application, when sending or receiving a positioning reference signal resource for terminal positioning, the symbols occupied by the positioning reference signal resource in a time slot include at least one symbol group, and each symbol group includes one or more continuous symbols, wherein at least one symbol group is used for frequency hopping transmission of the positioning reference signal resource, and adjacent symbol groups in the time domain include interval symbols, which are not used to transmit the positioning reference signal resource, and the length of the interval symbol is not less than the frequency hopping switching time. In this way, since the positioning reference signal can be sent or received by frequency hopping transmission, the effective bandwidth of the positioning reference signal can be improved, thereby improving the positioning accuracy. In addition, since the positioning reference signal resource includes interval symbols between adjacent symbol groups occupied in the time slot, and the length of the interval symbol is not less than the frequency hopping switching time, it can also facilitate RF retuning between different frequency hopping, thereby ensuring the effective transmission of the positioning reference signal resource.

[0209] The method for transmitting positioning reference signal resources provided in the embodiments of the present application may be performed by a positioning reference signal resource transmission device. In the embodiments of the present application, the method for transmitting positioning reference signal resources performed by a positioning reference signal resource transmission device is used as an example to illustrate the positioning reference signal resource transmission device provided in the embodiments of the present application.

[0210] FIG5 is a schematic diagram of the structure of a transmission apparatus for positioning reference signal resources according to an embodiment of the present application, which may correspond to a communication device in other embodiments. As shown in FIG5 , the apparatus 500 includes the following modules.

[0211] The transmission module 501 is configured to send or receive a positioning reference signal resource, where the symbols occupied by the positioning reference signal resource in a time slot include at least one symbol group, and each symbol group includes one or more consecutive symbols;

[0212] Among them, the at least one symbol group is used for the frequency hopping transmission of the positioning reference signal resource, and adjacent symbol groups in the time domain contain interval symbols, the interval symbols are not used to transmit the positioning reference signal resource, and the length of the interval symbols is not less than the frequency hopping switching time.

[0213] Optionally, as an embodiment, the number of symbols included in the at least one symbol group is the same, and the relative resource element offset relative RE offset corresponding to the at least one symbol group is the same; or,

[0214] The number of symbols included in the at least one symbol group has an integer multiple relationship, and the relative RE offsets corresponding to the symbol groups with the same number of symbols are the same, and the relative RE offset corresponding to the symbol group with more symbols includes the relative RE offset corresponding to the symbol group with fewer symbols.

[0215] Optionally, as an embodiment, in at least one of the following cases, the positioning reference signal resource does not perform frequency hopping transmission within a time slot:

[0216] The number of symbols contained in a symbol group is the same as the number of symbols occupied by the positioning reference signal resource in a time slot;

[0217] In one time slot, the positioning reference signal resource includes one symbol group;

[0218] The symbol group is not configured or defined.

[0219] Optionally, as an embodiment, when the first symbol of the positioning reference signal resource and the second symbol of other signals or channels belong to different bandwidth parts BWP, the interval between the first symbol and the second symbol is not less than the frequency hopping switching time;

[0220] The first symbol is the first symbol occupied by the positioning reference signal resource in a time slot, and the second symbol is the last symbol of the other signal or channel.

[0221] Optionally, as an embodiment, the apparatus 500 further includes a first determining module, where the first determining module is configured to:

[0222] Determine, according to at least one of the first, second, third, and fourth modes, a mapping relationship between a symbol sequence number in the positioning reference signal resource and a symbol position of the positioning reference signal resource in a time slot;

[0223] The first manner represents determining the mapping relationship according to at least one of a starting symbol, a first number of symbols, an interval time, and a number of symbols in a symbol group;

[0224] The second manner represents that the mapping relationship is determined according to at least one of the starting symbol, the number of symbol groups, the starting symbol of each symbol group, and the number of symbols in the symbol group;

[0225] The third manner represents that the mapping relationship is determined according to at least one of the starting symbol, the second symbol number, the starting position of the interval symbol, the interval time, and the interval number;

[0226] The fourth manner represents determining the mapping relationship according to a bitmap manner.

[0227] Optionally, as an embodiment, the start symbol represents a start symbol position of the positioning reference signal resource in a time slot;

[0228] The first symbol number represents the number of symbols occupied by the positioning reference signal in a time slot;

[0229] The interval time represents the number of interval symbols between adjacent symbol groups;

[0230] The symbol number of the symbol group represents the number of consecutive symbols contained in a symbol group;

[0231] The second number of symbols represents the number of symbols occupied by the positioning reference signal resource in a time slot, and the second number of symbols includes the number of spaced symbols in the positioning reference signal resource;

[0232] The starting position of the interval symbol represents the symbol starting position of one or more intervals in the time slot;

[0233] The number of intervals represents the number of intervals between symbols occupied by the positioning reference signal resource or the number of intervals contained in a time slot.

[0234] Optionally, as an embodiment, the interval time is equal to the difference between the symbol group interval and the number of symbols in the symbol group, and the symbol group interval is the interval between the starting symbols of adjacent symbol groups.

[0235] Optionally, as an embodiment, the interval times between adjacent symbol groups are the same or different. In the case where the interval times between adjacent symbol groups are different, the interval times include multiple values.

[0236] Optionally, as an embodiment, the number of symbols in the symbol group is determined by at least one of the following:

[0237] Determining according to the number of symbols and the number of symbol groups occupied by the positioning reference signal resource in a time slot;

[0238] The repetition factor is determined based on the repetition factor and the number of symbols repeatedly occupied in one time slot. The repetition factor represents the number of repetitions in a time slot contained in a symbol group.

[0239] Optionally, as an embodiment, within a time slot, the number of symbols in different symbol groups is the same or different. When the number of symbols in the symbol groups is different, the number of symbols in the symbol groups includes multiple values.

[0240] Optionally, as an embodiment, the first determining module is further configured to:

[0241] When the symbols actually occupied by the positioning reference signal resource are determined according to the second number of symbols, the number of interval symbols included in the second number of symbols is excluded.

[0242] Optionally, as an embodiment, when a time slot includes an interval, the starting position of the interval symbol is an offset of the interval relative to the first symbol of the time slot, or an offset relative to the first symbol of the positioning reference signal resource, or an offset relative to a previous or next symbol of the positioning reference signal resource;

[0243] When a time slot contains multiple intervals, the symbol starting position of each interval includes at least one of the following:

[0244] An offset relative to the first symbol of a time slot, or an offset relative to the first symbol of the positioning reference signal resource, or an offset relative to the previous or next symbol of the positioning reference signal resource;

[0245] offset relative to the first interval;

[0246] The offset relative to the previous interval.

[0247] Optionally, as an embodiment, for the first manner, the first determining module is configured to determine the mapping relationship by using the following formula:

[0248] or,

[0249] Wherein, l is the symbol position of the positioning reference signal resource in a time slot, l0 is the starting symbol position of the positioning reference signal resource in a time slot, l′ is the symbol sequence number in the positioning reference signal resource, l′∈{0,1,…,N symb -1}, N symb is the number of symbols of the positioning reference signal resource in a time slot, is the number of symbols in the symbol group, is the interval time.

[0250] Optionally, as an embodiment, for the second manner, the first determining module is configured to determine the mapping relationship by using the following formula:

[0251] Wherein, l′ is the symbol number in the positioning reference signal resource, l′∈{0,1,…,N symb -1}, N symb is the number of symbols of the positioning reference signal resource in a time slot, l is the symbol position of the positioning reference signal resource in a time slot, l0 is the starting symbol position of the positioning reference signal resource in a time slot, is the starting symbol interval of the symbol group.

[0252] Optionally, as an embodiment, the first determining module is further configured to:

[0253] When the mapping relationship is determined according to the third method, the symbol number in the positioning reference signal resource includes the symbol number of the interval symbol in the time slot.

[0254] Optionally, as an embodiment, for the fourth manner, the length of the bitmap is the number of symbols in a time slot, bits with a value of 1 in the bitmap are used for transmission of the positioning reference signal resource, and bits with a value of 0 are not used for transmission of the positioning reference signal resource;

[0255] In the bitmap, symbol groups are represented by consecutive bits with a value of 1, and intervals between symbol groups are represented by bits with a value of 0 between the symbol groups.

[0256] Optionally, as an embodiment, the symbol sequence number in the positioning reference signal resource is the symbol sequence number obtained by sequentially arranging the bits with a value of 1 in the bitmap; and / or,

[0257] The symbol sequence number in the symbol group is the symbol sequence number obtained by sequentially arranging the consecutive bits with the value of 1 in the symbol group.

[0258] Optionally, as an embodiment, the first determining module is further configured to:

[0259] The frequency hopping count within the time slot is determined based on at least one of the number of symbols in the symbol group, the symbol sequence number in the positioning reference signal resource, the sequence number of the symbol group, the interval time, and the starting position of the interval symbol. The frequency hopping count is used to determine the positioning reference signal narrowband corresponding to the frequency hopping transmission.

[0260] Optionally, as an embodiment, the first determining module is configured to determine the frequency hopping count in the time slot by using the following formula:

[0261] Or, n = n group ;

[0262] Wherein, l′ is the symbol number in the positioning reference signal resource, l′∈{0,1,…,N symb -1}, N symb is the number of symbols of the positioning reference signal resource in a time slot, is the number of symbols in the symbol group, n group is the sequence number of the symbol group within the time slot.

[0263] Optionally, as an embodiment, the apparatus 500 further includes a second determining module, where the second determining module is configured to:

[0264] Determining, according to a first mapping table between symbol numbers, comb structure sizes, and relative RE offsets within the positioning reference signal resource, relative RE offsets corresponding to symbols of the positioning reference signal resource under different comb structure sizes during frequency hopping transmission; and / or

[0265] The communication device determines the relative RE offset corresponding to the symbol of the symbol group under different comb structure sizes during frequency hopping transmission according to a second mapping table between the symbol sequence number in the symbol group, the comb structure size, and the relative RE offset.

[0266] Optionally, as an embodiment, the first mapping table is used for frequency hopping transmission, or the first mapping table multiplexes a non-frequency hopping mapping table, or the first mapping table is a mapping table obtained by expanding the non-frequency hopping mapping table;

[0267] The non-frequency hopping mapping table is a mapping table between the symbol number, comb structure size and relative RE offset in the positioning reference signal resource when it is not used for frequency hopping transmission.

[0268] Optionally, as an embodiment, the extension performed on the basis of the non-frequency hopping mapping table includes at least one of the following:

[0269] According to the existing number of symbols and comb structure size in the non-frequency hopping mapping table, a corresponding new relative RE offset is added;

[0270] A new number of symbols and a new comb structure, as well as a relative RE offset corresponding to the new number of symbols and the new comb structure size are added to the non-frequency hopping mapping table.

[0271] Optionally, as an embodiment, in the first mapping table, for any comb structure size and any number of symbols of the positioning reference signal resource, the corresponding relative RE offset includes one or more;

[0272] In the case where the corresponding relative RE offset includes multiple ones, the network side device indicates one of the multiple relative RE offsets, or the terminal determines one according to the protocol agreement.

[0273] Optionally, as an embodiment, the second determining module is further configured to:

[0274] When the number of symbols of the positioning reference signal resource includes an interval symbol, when determining the relative RE offset according to the first mapping table, ignoring the relative RE offset corresponding to the interval symbol, and / or,

[0275] In the case where the number of symbols of the positioning reference signal resource includes an interval symbol, the relative RE offset corresponding to the interval symbol is an invalid value.

[0276] Optionally, as an embodiment, in the second mapping table, for any comb structure size and the number of symbols in any symbol group, the corresponding relative RE offset includes one or more;

[0277] In the case where the corresponding relative RE offset includes multiple ones, the network side device indicates one of the multiple RE offsets, or the terminal determines one according to the protocol agreement.

[0278] Optionally, as an embodiment, in the second mapping table, the relative RE offset is the relative RE offset of a symbol in a symbol group relative to the first symbol in the symbol group, or the relative RE offset of a symbol in a symbol group relative to the first symbol of the positioning reference signal resource in a time slot.

[0279] Optionally, as an embodiment, the RE offset of the first symbol of each symbol group in the positioning reference signal resource is the same or different. In different cases, the RE offset of the first symbol of each symbol group is indicated by a network side device or agreed upon by a protocol.

[0280] Optionally, as an embodiment, the transmission module 501 is further configured to:

[0281] The positioning reference signal resource is sent or received in multiple time slots, where the multiple time slots are located in a period of the positioning reference signal resource, and the positioning reference signal resources of the multiple time slots correspond to the same positioning reference signal resource identifier.

[0282] Optionally, as an embodiment, the number of the multiple time slots is indicated by a network side device, and / or agreed upon by a protocol, and / or selected by the terminal;

[0283] Among them, if the positioning reference signal is an uplink positioning reference signal, the multiple time slots include uplink time slots, or uplink time slots and flexible time slots; if the positioning reference signal is a downlink positioning reference signal, the multiple time slots include downlink transmission time slots, or downlink time slots and flexible time slots.

[0284] Optionally, as an embodiment, the multiple time slots are continuous or discontinuous in the time domain. In the case of discontinuity, the intervals between the multiple time slots are the same or different.

[0285] Wherein, when the intervals between multiple time slots are the same, the position of each time slot is determined according to the time slot offset of the starting time slot and the time slot offset or time slot interval of the adjacent time slots;

[0286] When the intervals between multiple time slots are different, the position of each time slot is determined according to the time slot offset of each time slot, or according to the time slot offset of the starting time slot and the time slot offsets of other time slots relative to the starting time slot.

[0287] Optionally, as an embodiment, the multiple time slots include at least one time slot group, the at least one time slot group is used for frequency hopping transmission of the positioning reference signal resource between time slots, and time slot groups adjacent in the time domain have an interval of a length not less than the frequency hopping switching time;

[0288] Each time slot group contains at least one time slot, the at least one time slot is arranged in sequence, and the number of the at least one time slot is indicated by the network side device, and / or agreed upon by the protocol, and / or selected by the terminal.

[0289] Optionally, as an embodiment, in at least one of the following cases, the positioning reference signal resource does not perform frequency hopping transmission between time slots:

[0290] The number of time slots included in a time slot group is the same as the number of time slots of the positioning reference signal resource in one period;

[0291] The positioning reference signal resource in one period includes one time slot group;

[0292] Timeslot groups are not configured or defined.

[0293] Optionally, as an embodiment, multiple time slots in a time slot group have the same time-frequency mapping pattern within the time slots.

[0294] Optionally, as an embodiment, the time slots of the multiple time slot groups are distributed in the same manner, and the time domain position of each time slot in the multiple time slot groups is determined according to the interval between the time slots in each time slot group and the interval between the time slot groups.

[0295] Optionally, as an embodiment, the apparatus further includes a third determining module, wherein the third determining module is configured to:

[0296] A frequency hopping count between time slots is determined based on at least one of the number of time slots in the time slot group, the time slot sequence number in the positioning reference signal resource, and the sequence number of the time slot group. The frequency hopping count between time slots is used to determine the positioning reference signal narrowband corresponding to each frequency hopping transmission.

[0297] Optionally, as an embodiment, the transmission module 501 is further configured to:

[0298] When the positioning reference signal resource is configured with intra-slot frequency hopping and the positioning reference signal resource includes multiple time slots, frequency hopping is performed within the time slot and between time slots according to symbol distribution of the positioning reference signal resource in each time slot.

[0299] Optionally, as an embodiment, the symbols of the positioning reference signal resources are distributed identically in multiple time slots.

[0300] Optionally, as an embodiment, the transmission module 501 is further configured to:

[0301] The symbol distribution of the positioning reference signal resource in multiple time slots is determined according to the symbol groups and the intervals between the symbol groups.

[0302] Optionally, as an embodiment, the transmission module 501 is configured to:

[0303] The positions of the symbol groups in the current time slot and other time slots are determined according to the position of the first symbol group in the first time slot of the positioning reference signal resource and the intervals between the symbol groups.

[0304] Optionally, as an embodiment, in two adjacent time slots for transmitting the positioning reference signal, the interval between the first symbol of the positioning reference signal resource in the latter time slot and the last symbol of the positioning reference signal resource in the previous time slot is equal to the interval between symbol groups and is not less than the frequency hopping switching time.

[0305] Optionally, as an embodiment, according to the symbol group interval, when the determined first symbol group is located in the first time slot and the second time slot, the transmission module 501 is further configured to perform any of the following:

[0306] transmitting the first symbol group according to symbol distribution of the first symbol group in the first time slot and the second time slot;

[0307] Transmitting the first symbol group at the start symbol of the second time slot;

[0308] Transmitting the first symbol group in a third symbol of the second time slot, where the position of the third symbol is the same as the position of the first symbol transmitting the positioning reference signal resource in the first time slot;

[0309] Transmitting the first symbol group at a fourth symbol in the second time slot, where a position of the fourth symbol is the same as a position of a first symbol of the positioning reference signal resource transmitted in a first time slot of the positioning reference signal resource;

[0310] The first symbol group is transmitted according to the instruction of the network side device or the protocol agreement.

[0311] Optionally, the starting symbol position of the positioning reference signal resource in the time slot configured by the network only applies to the starting symbol of the first symbol group in multiple time slots occupied by the positioning reference signal resource.

[0312] Optionally, as an embodiment, the apparatus 500 further includes a fourth determining module, wherein the fourth determining module is configured to:

[0313] Determine the frequency hopping count within and between time slots based on at least one of the number of symbols in the symbol group, the symbol sequence number in the positioning reference signal resource, the sequence number of the symbol group, the number of time slots in the time slot group, the time slot sequence number in the positioning reference signal resource, and the sequence number of the time slot group.

[0314] Optionally, as an embodiment, the fourth determining module is configured to determine the frequency hopping count within a time slot and between time slots by using the following formula:

[0315] Wherein, l′ is the symbol number in the positioning reference signal resource, l′∈{0,1,…,N symb -1}, N symb is the number of symbols of the positioning reference signal resource in a time slot, is the number of symbols in the symbol group, n′ is the time slot number in the positioning reference signal resource, n′∈{0,1,…,N slot -1}, N slot is the number of time slots occupied by the positioning reference signal resource.

[0316] According to the device 500 of the embodiment of the present application, the process of the method 300 corresponding to the embodiment of the present application can be referred to, and the various units / modules in the device 500 and the above-mentioned other operations and / or functions are respectively for implementing the corresponding processes in the method 300, and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be repeated here.

[0317] The positioning reference signal resource transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or other device other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can include servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0318] The transmission device for positioning reference signal resources provided in the embodiment of the present application can implement the various processes implemented in the method embodiment of Figure 3 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0319] Optionally, as shown in Figure 6, an embodiment of the present application further provides a communication device 600, including a processor 601 and a memory 602. The memory 602 stores a program or instruction that can be executed on the processor 601. For example, when the communication device 600 is a terminal, the program or instruction, when executed by the processor 601, implements the various steps of the embodiment of the method for transmitting positioning reference signal resources described above, and can achieve the same technical effect. When the communication device 600 is a network-side device, the program or instruction, when executed by the processor 601, implements the various steps of the embodiment of the method for transmitting positioning reference signal resources described above, and can achieve the same technical effect. To avoid repetition, it will not be described here.

[0320] The embodiment of the present application also provides a communication device, including a processor and a communication interface, the communication interface is used to send or receive positioning reference signal resources, the symbols occupied by the positioning reference signal resources in a time slot include at least one symbol group, and each symbol group includes one or more consecutive symbols; wherein, the at least one symbol group is used for frequency hopping transmission of the positioning reference signal resources, and adjacent symbol groups in the time domain include interval symbols, the interval symbols are not used to transmit the positioning reference signal resources, and the length of the interval symbols is not less than the frequency hopping switching time. This communication device embodiment corresponds to the above-mentioned communication device side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the communication device embodiment and can achieve the same technical effect. Specifically, Figure 7 is a schematic diagram of the hardware structure of a communication device that implements an embodiment of the present application.

[0321] The communication device 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709 and at least some of the components of the processor 710.

[0322] Those skilled in the art will appreciate that the communication device 700 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 710 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The communication device structure shown in FIG7 does not limit the communication device. The communication device may include more or fewer components than shown, or may combine certain components or arrange the components differently, which will not be described in detail here.

[0323] It should be understood that in an embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the GPU 7041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0324] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 701 may transmit the data to the processor 710 for processing. Furthermore, the RF unit 701 may send uplink data to the network-side device. Typically, the RF unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0325] The memory 709 can be used to store software programs or instructions and various data. The memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 709 may include a volatile memory or a non-volatile memory, or the memory 709 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory 709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0326] Processor 710 may include one or more processing units. Optionally, processor 710 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 710.

[0327] The radio frequency unit 701 is configured to send or receive a positioning reference signal resource, where the symbols occupied by the positioning reference signal resource in a time slot include at least one symbol group, and each symbol group includes one or more consecutive symbols.

[0328] Among them, the at least one symbol group is used for the frequency hopping transmission of the positioning reference signal resource, and adjacent symbol groups in the time domain contain interval symbols, the interval symbols are not used to transmit the positioning reference signal resource, and the length of the interval symbols is not less than the frequency hopping switching time.

[0329] In an embodiment of the present application, when sending or receiving a positioning reference signal resource for terminal positioning, the symbols occupied by the positioning reference signal resource in a time slot include at least one symbol group, and each symbol group includes one or more continuous symbols, wherein at least one symbol group is used for frequency hopping transmission of the positioning reference signal resource, and adjacent symbol groups in the time domain include interval symbols, which are not used to transmit the positioning reference signal resource, and the length of the interval symbol is not less than the frequency hopping switching time. In this way, since the positioning reference signal can be sent or received by frequency hopping transmission, the effective bandwidth of the positioning reference signal can be improved, thereby improving the positioning accuracy. In addition, since the positioning reference signal resource includes interval symbols between adjacent symbol groups occupied in the time slot, and the length of the interval symbol is not less than the frequency hopping switching time, it can also facilitate RF retuning between different frequency hopping, thereby ensuring the effective transmission of the positioning reference signal resource.

[0330] The communication device 700 provided in the embodiment of the present application can also implement the various processes of the embodiment shown in Figure 3 above and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0331] The embodiment of the present application also provides a communication device, including a processor and a communication interface, the communication interface is used to send or receive positioning reference signal resources, the symbols occupied by the positioning reference signal resources in a time slot include at least one symbol group, each symbol group includes one or more consecutive symbols; wherein, the at least one symbol group is used for frequency hopping transmission of the positioning reference signal resources, and adjacent symbol groups in the time domain include interval symbols, the interval symbols are not used to transmit the positioning reference signal resources, and the length of the interval symbols is not less than the frequency hopping switching time. This communication device embodiment corresponds to the above-mentioned communication device method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this communication device embodiment and can achieve the same technical effect.

[0332] Specifically, an embodiment of the present application further provides a communication device. As shown in Figure 8, the communication device 800 includes: an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84, and a memory 85. The antenna 81 is connected to the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information via the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be transmitted and sends it to the radio frequency device 82. The radio frequency device 82 processes the received information and then sends it through the antenna 81.

[0333] The method executed by the communication device in the above embodiment may be implemented in the baseband device 83 , which includes a baseband processor.

[0334] The baseband device 83 may include, for example, at least one baseband board, on which a plurality of chips are arranged, as shown in FIG8 , one of the chips being, for example, a baseband processor, which is connected to the memory 85 through a bus interface to call the program in the memory 85 and execute the communication device operations shown in the above method embodiment.

[0335] The communication device may further include a network interface 86, such as a common public radio interface (CPRI).

[0336] Specifically, the communication device 800 of the embodiment of the present application also includes: instructions or programs stored in the memory 85 and executable on the processor 84. The processor 84 calls the instructions or programs in the memory 85 to execute the methods executed by the modules shown in FIG5 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0337] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the embodiment of the above-mentioned method for transmitting positioning reference signal resources are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0338] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0339] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned positioning reference signal resource transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0340] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0341] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-mentioned embodiment of the method for transmitting positioning reference signal resources, and can achieve the same technical effect. To avoid repetition, it is not repeated here.

[0342] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0343] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0344] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A method for transmitting positioning reference signal resources, comprising: A communication device transmits or receives positioning reference signal resources, and the symbols occupied by the positioning reference signal resources within a time slot include at least one symbol group, and each symbol group includes one or more consecutive symbols; Wherein, the at least one symbol group is used for frequency hopping transmission of the positioning reference signal resources, and there are interval symbols between adjacent symbol groups in the time domain. The interval symbols are not used for transmitting the positioning reference signal resources, and the length of the interval symbols is not less than the frequency hopping switching time.

2. The method according to claim 1, wherein The number of symbols included in the at least one symbol group is the same, and the relative resource element offset (relative RE offset) corresponding to the at least one symbol group is the same; or, The number of symbols included in the at least one symbol group has an integer multiple relationship, and the relative RE offset corresponding to the symbol groups with the same number of symbols is the same. The relative RE offset corresponding to the symbol group with more symbols includes the relative RE offset corresponding to the symbol group with fewer symbols.

3. The method according to claim 1, wherein In at least one of the following cases, the positioning reference signal resources do not perform frequency hopping transmission within the time slot: The number of symbols included in one symbol group is the same as the number of symbols occupied by the positioning reference signal resources within one time slot; Within one time slot, the positioning reference signal resources include one symbol group; The symbol group is not configured or defined.

4. The method according to claim 1, wherein When the first symbol of the positioning reference signal resources and the second symbol of other signals or channels belong to different bandwidth parts (BWPs), the interval between the first symbol and the second symbol is not less than the frequency hopping switching time; Wherein, the first symbol is the first symbol occupied by the positioning reference signal resources within one time slot, and the second symbol is the last symbol of the other signals or channels.

5. The method according to claim 1, wherein The method further includes: The communication device determines the mapping relationship between the symbol sequence number within the positioning reference signal resources and the symbol position of the positioning reference signal resources within one time slot according to at least one of the first method, the second method, the third method, and the fourth method; Wherein, the first method represents determining the mapping relationship according to at least one of the starting symbol, the first number of symbols, the interval time, and the number of symbols in the symbol group; The second method represents determining the mapping relationship according to at least one of the starting symbol, the number of symbol groups, the starting symbol of each symbol group, and the number of symbols in the symbol group; The third method represents determining the mapping relationship according to at least one of the starting symbol, the second number of symbols, the starting position of the interval symbol, the interval time, and the number of intervals; The fourth method represents determining the mapping relationship according to the bitmap method.

6. The method according to claim 5, wherein, The starting symbol represents the starting symbol position of the positioning reference signal resources within the time slot; The first number of symbols represents the number of symbols occupied by the positioning reference signal within the time slot; The interval time represents the number of interval symbols between adjacent symbol groups; The number of symbols in the symbol group represents the number of consecutive symbols included in one symbol group; The second symbol number represents the number of symbols occupied by the positioning reference signal resource within a time slot, and this symbol number includes the symbol numbers of the spaced symbols within the positioning reference signal resource; The starting position of the spaced symbol represents the starting positions of one or more spaced symbols within a time slot; The number of intervals represents the intervals between the symbols occupied by the positioning reference signal resource or the number of intervals included within one time slot.

7. The method according to claim 6, wherein, The interval time is equal to the difference between the symbol group interval and the number of symbols in the symbol group, and the symbol group interval is the interval between the starting symbols of adjacent symbol groups.

8. The method according to claim 6, wherein, The interval time between adjacent symbol groups is the same or different. In the case where the interval time between adjacent symbol groups is different, the interval time includes multiple values.

9. The method according to claim 6, wherein The number of symbols in the symbol group is determined by at least one of the following: Determined according to the number of symbols occupied by the positioning reference signal resource within a time slot and the number of symbol groups; Determined according to the repetition factor and the number of symbols repeatedly occupied within one time slot, and the repetition factor represents the number of repetitions within the time slots included in one symbol group.

10. The method according to claim 6, wherein, Within a time slot, the number of symbols in different symbol groups is the same or different. In the case where the number of symbols in the symbol group is different, the number of symbols in the symbol group includes multiple values.

11. The method according to claim 6, wherein, The method further includes: When the communication device determines the symbols actually occupied by the positioning reference signal resource according to the second symbol number, the symbol numbers of the spaced symbols included in the second symbol number are excluded.

12. The method according to claim 6, wherein In the case where there is one interval within a time slot, the starting position of the spaced symbol is the offset of the interval relative to the first symbol of the time slot, or relative to the first symbol of the positioning reference signal resource, or relative to the symbol of the previous or next positioning reference signal resource; In the case where there are multiple intervals within a time slot, the symbol starting position of each interval includes at least one of the following: The offset relative to the first symbol of the time slot, or relative to the first symbol of the positioning reference signal resource, or relative to the symbol of the previous or next positioning reference signal resource; The offset relative to the first interval; The offset relative to the previous interval.

13. The method according to claim 5, wherein For the first method, the communication device determines the mapping relationship through the following formula: Or, where \(l\) is the symbol position of the positioning reference signal resource within a time slot, \(l_0\) is the starting symbol position of the positioning reference signal resource within a time slot, \(l'\) is the symbol sequence number within the positioning reference signal resource, \(l' \in \{0, 1, \ldots, N\ symb - 1\}, N symb is the number of symbols of the positioning reference signal resource within a time slot, is the number of symbols in the symbol group, Is the interval time.

14. The method according to claim 5, wherein For the second method, the communication device determines the mapping relationship through the following formula: where l′ is the symbol serial number within the positioning reference signal resource, l′ ∈ {0, 1, …, N symb - 1}, N symb is the number of symbols of the positioning reference signal resource within one time slot, l is the symbol position of the positioning reference signal resource within one time slot, and l0 is the starting symbol position of the positioning reference signal resource within one time slot, Is the starting symbol interval of the symbol group.

15. The method according to claim 6, wherein, The method further includes: When the communication device determines the mapping relationship according to the third method, the symbol sequence numbers within the positioning reference signal resource include the symbol sequence numbers of the spaced symbols within the time slot.

16. The method according to claim 5, wherein For the fourth method, the length of the bitmap is the number of symbols within one time slot, and the bits with a value of 1 in the bitmap are used for the transmission of the positioning reference signal resource, and the bits with a value of 0 are not used for the transmission of the positioning reference signal resource; Wherein, in the bitmap, the symbol group is represented by consecutive bits with a value of 1, and the interval between symbol groups is represented by the bits with a value of 0 between symbol groups.

17. The method according to claim 16, wherein The symbol sequence numbers within the positioning reference signal resource are the symbol sequence numbers obtained by arranging the bits with a value of 1 in the bitmap in sequence; and / or, The symbol sequence numbers within the symbol group are the symbol sequence numbers obtained by arranging the consecutive bits with a value of 1 within the symbol group in sequence.

18. The method according to claim 5, wherein, The method further includes: The communication device determines the hopping count within the time slot according to at least one of the number of symbols in the symbol group, the symbol sequence numbers within the positioning reference signal resource, the sequence number of the symbol group, the interval time, and the starting position of the interval symbols, and the hopping count is used to determine the positioning reference signal narrowband corresponding to the hopping transmission.

19. The method according to claim 18, wherein, The communication device determines the frequency hopping count within the time slot through the following formula: Or, n = n group ; where l′ is the symbol serial number within the positioning reference signal resource, l′ ∈ {0, 1, …, N symb - 1}, N symb is the number of symbols of the positioning reference signal resource within one time slot, is the number of symbols in the symbol group, n group is the serial number of the symbol group within the time slot.

20. The method according to claim 1, wherein The method further includes: The communication device determines, according to a first mapping table between the symbol sequence numbers within the positioning reference signal resource, the comb structure size, and the relative RE offset, the relative RE offset corresponding to the symbols of the positioning reference signal resource under different comb structure sizes during hopping transmission; and / or, The communication device determines, according to a second mapping table between the symbol sequence numbers within the symbol group, the comb structure size, and the relative RE offset, the relative RE offset corresponding to the symbols of the symbol group under different comb structure sizes during hopping transmission.

21. The method according to claim 20, wherein, The first mapping table is used for hopping transmission, or the first mapping table multiplexes the non-hopping mapping table, or the first mapping table is a mapping table obtained by expanding on the basis of the non-hopping mapping table; Wherein, the non-hopping mapping table is a mapping table between the symbol sequence numbers within the positioning reference signal resource, the comb structure size, and the relative RE offset when not used for hopping transmission.

22. The method according to claim 21, wherein The expansion on the basis of the non-hopping mapping table includes at least one of the following: For the existing number of symbols and comb structure size in the non-hopping mapping table, adding corresponding new relative RE offsets; Adding new numbers of symbols and new comb structures in the non-hopping mapping table, and the relative RE offsets corresponding to the new numbers of symbols and comb structure sizes.

23. The method according to claim 21, wherein In the first mapping table, for any comb structure size and any number of symbols of the positioning reference signal resource, the corresponding relative RE offset includes one or more; Wherein, in the case where the corresponding relative RE offset includes multiple ones, one of the multiple relative RE offsets is indicated by the network-side device, or one of them is determined by the terminal according to the protocol convention.

24. The method according to claim 20, wherein The method further includes: When the number of symbols in the positioning reference signal resource includes interval symbols, the communication device ignores the relative RE offset corresponding to the interval symbols when determining the relative RE offset according to the first mapping table, and / or, When the number of symbols of the positioning reference signal resource includes spaced symbols, the relative RE offset corresponding to the spaced symbols is an invalid value.

25. The method according to claim 20, wherein In the second mapping table, for any comb structure size and the number of symbols of any symbol group, the corresponding relative RE offset includes one or more; Wherein, when there are multiple corresponding relative RE offsets, one of the multiple RE offsets is indicated by the network-side device, or one of them is determined by the terminal according to the protocol convention.

26. The method according to claim 20, wherein In the second mapping table, the relative RE offset is the relative RE offset of the symbols in the symbol group relative to the first symbol in the symbol group, or the relative RE offset of the symbols in the symbol group relative to the first symbol of the positioning reference signal resource in the time slot.

27. The method according to claim 20, wherein The RE offsets of the first symbols of each symbol group in the positioning reference signal resource are the same or different. In the case of being different, the RE offsets of the first symbols of each symbol group are indicated by the network-side device or determined by the protocol convention.

28. The method according to claim 1, wherein The method further includes: The communication device transmits or receives the positioning reference signal resource on multiple time slots. The multiple time slots are within one period of the positioning reference signal resource, and the positioning reference signal resources of the multiple time slots correspond to the same positioning reference signal resource identifier.

29. The method according to claim 28, wherein, The number of the multiple time slots is indicated by the network-side device, and / or determined by the protocol convention, and / or selected by the terminal; Wherein, if the positioning reference signal is an uplink positioning reference signal, the multiple time slots include uplink time slots, or uplink time slots and flexible time slots; if the positioning reference signal is a downlink positioning reference signal, the multiple time slots include time slots for downlink transmission, or downlink time slots and flexible time slots.

30. The method according to claim 28, wherein The multiple time slots are continuous or discontinuous in the time domain. In the case of being discontinuous, the intervals between the multiple time slots are the same or different; Wherein, when the intervals between the multiple time slots are the same, the position of each time slot is determined according to the time slot offset of the starting time slot and the time slot offset or time slot interval of the adjacent time slot; In the case of different intervals between the multiple time slots, the position of each time slot is determined according to the time slot offset of each time slot, or according to the time slot offset of the starting time slot and the time slot offset of other time slots relative to the starting time slot.

31. The method according to claim 28, wherein, The multiple time slots include at least one time slot group, and the at least one time slot group is used for the positioning reference signal resource to perform frequency hopping transmission between time slots. There is an interval with a length not less than the frequency hopping switching time between two adjacent time slot groups in the time domain; Wherein, each time slot group includes at least one time slot, the at least one time slot is arranged in sequence, and the number of the at least one time slot is indicated by the network-side device, and / or determined by the protocol convention, and / or selected by the terminal.

32. The method according to claim 31, wherein, In at least one of the following cases, the positioning reference signal resource does not perform frequency hopping transmission between time slots: The number of time slots included in a time slot group is the same as the number of time slots of the positioning reference signal resource within a period; The positioning reference signal resource within a period includes one time slot group; The time slot group is not configured or defined.

33. The method according to claim 31, wherein, The time-frequency mapping patterns of multiple time slots within a time slot group are the same within a time slot.

34. The method according to claim 31, wherein, The time slot distributions of the multiple time slot groups are the same, and the time domain positions of each time slot in the multiple time slot groups are determined according to the interval between time slots within each time slot group and the interval between time slot groups.

35. The method according to claim 31, wherein The method further includes: The communication device determines the hopping count between time slots according to at least one of the number of time slots of the time slot group, the time slot serial number within the positioning reference signal resource, and the serial number of the time slot group, and the hopping count between time slots is used to determine the positioning reference signal narrowband corresponding to each hopping transmission.

36. The method according to claim 28, wherein The method further includes: When the positioning reference signal resource is configured with in-slot hopping and the positioning reference signal resource includes multiple time slots, the communication device performs hopping within and between time slots according to the symbol distribution of the positioning reference signal resource within each time slot.

37. The method according to claim 36, wherein, The symbol distributions of the positioning reference signal resource within multiple time slots are the same.

38. The method according to claim 36, wherein The method further includes: The communication device determines the symbol distribution of the positioning reference signal resource within multiple time slots according to the symbol group and the interval between symbol groups.

39. The method according to claim 38, wherein, The communication device determines the symbol distribution of the positioning reference signal resource within multiple time slots according to the symbol group and the interval between symbol groups, including: The communication device determines the positions of symbol groups of this time slot and other time slots according to the position of the first symbol group in the first time slot of the positioning reference signal resource and the interval between symbol groups.

40. The method according to claim 39, wherein, In two adjacent time slots for transmitting the positioning reference signal, the interval between the first symbol of the positioning reference signal resource in the latter time slot and the last symbol of the positioning reference signal resource in the former time slot is equal to the interval between symbol groups and is not less than the hopping switching time.

41. The method according to claim 39, wherein, According to the symbol group interval, when the determined first symbol group is located in the first time slot and the second time slot, the method further includes any one of the following: Transmit the first symbol group according to the symbol distribution of the first symbol group in the first time slot and the second time slot; Transmit the first symbol group at the start symbol of the second time slot; Transmit the first symbol group at the third symbol of the second time slot, and the position of the third symbol is the same as the position of the first symbol for transmitting the positioning reference signal resource in the first time slot; Transmit the first symbol group at the fourth symbol of the second time slot, and the position of the fourth symbol is the same as the position of the first symbol for transmitting the positioning reference signal resource in the first time slot of the positioning reference signal resource; Transmit the first symbol group according to the indication of the network side device or protocol convention.

42. The method according to claim 36, wherein, The method further includes: The communication device determines the hopping count within and between time slots according to at least one of the number of symbols in the symbol group, the symbol sequence number within the positioning reference signal resource, the sequence number of the symbol group, the number of time slots in the time slot group, the time slot sequence number within the positioning reference signal resource, and the sequence number of the time slot group.

43. The method according to claim 42, wherein, The communication device determines the hopping counts within and between time slots through the following formula: where l′ is the symbol serial number within the positioning reference signal resource, l′ ∈ {0, 1, …, N symb - 1}, N symb is the number of symbols of the positioning reference signal resource within one time slot, is the number of symbols in the symbol group, n′ is the time slot number within the positioning reference signal resource, n′ ∈ {0, 1, …, N slot - 1}, N slot is the number of time slots occupied by the positioning reference signal resource.

44. A transmission device for a positioning reference signal resource, comprising: a transmission module, configured to transmit or receive a positioning reference signal resource, where the symbols occupied by the positioning reference signal resource within one time slot include at least one symbol group, and each symbol group includes one or more consecutive symbols; wherein the at least one symbol group is used for the frequency hopping transmission of the positioning reference signal resource, there are interval symbols between adjacent symbol groups in the time domain, the interval symbols are not used for transmitting the positioning reference signal resource, and the length of the interval symbols is not less than the frequency hopping switching time.

45. A communication device, comprising a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the transmission method of the positioning reference signal resource according to any one of claims 1 to 43 are implemented.

46. A readable storage medium, where a program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the transmission method of the positioning reference signal resource according to any one of claims 1 to 43 are implemented.

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