Method for mapping positioning reference signal, and communication device

Abstract

This disclosure discloses a method for mapping a positioning reference signal, and a communication device, and is related to the field of communications technologies. The method for mapping a positioning reference signal is applied to a terminal and includes: obtaining (101) mapping information of a positioning reference signal, where the mapping information indicates relative resource element offsets of at least some symbols in a positioning reference signal resource; and determining (102), based on the mapping information, a relative resource element offset of each symbol in the positioning reference signal resource. The technical solutions of this disclosure provide solutions for configuring a pattern of a positioning reference signal. (FIG. 5)

Description

Mapping method of positioning reference signal, terminal and network side device

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 201910935784.X filed in China on September 29, 2019 and Chinese Patent Application No. 201910959843.7 filed in China on October 10, 2019, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the field of communication technology, and in particular, to a mapping method of positioning reference signal, a terminal and a network side device. BACKGROUND

[0004] Positioning Reference Signal (PRS) is a reference signal (RS) used for downlink positioning. A terminal (User Equipment, UE) measures PRS sent from multiple cells or multiple transmission points to obtain the Reference Signal Time Difference (RSTD) between the multiple cells or transmission points. Then the UE sends the measured RSTD information to the Evolved Serving Mobile Location Center (E-SMLC), and the E-SMLC calculates the UE position.

[0005] In addition to downlink positioning, LTE also supports uplink positioning. The uplink reference signal used in LTE uplink positioning is Sounding Reference Signal (SRS). The UE uplink reference signal reception time difference is estimated using a location measurement unit (LMU) located at the eNB side to estimate the UE position, without the need for the UE to participate in positioning measurement and calculation.

[0006] In the positioning reference signal resource, in addition to the starting symbol, each symbol after the starting symbol has a relative resource element offset (relative RE offset). With the same comb size and the same number of symbols, multiple configurations can be supported, but how to configure the relative RE offset to support multiple configurations has not been concluded.

[0007] SUMMARY

[0008] The embodiment of the present disclosure provides a mapping method of a positioning reference signal, a terminal and a network side device.

[0009] In a first aspect, the embodiment of the present disclosure provides a mapping method of a positioning reference signal, applied to a terminal, comprising:

[0010] obtaining mapping information of the positioning reference signal, wherein the mapping information indicates relative resource element offsets of at least part of symbols in a positioning reference signal resource;

[0011] determining, according to the mapping information, the relative resource element offset of each symbol in the positioning reference signal resource.

[0012] In a second aspect, the embodiment of the present disclosure provides a mapping method of a positioning reference signal, applied to a network side device, comprising:

[0013] sending, to a terminal, mapping information of the positioning reference signal, wherein the mapping information indicates relative resource element offsets of at least part of symbols in a positioning reference signal resource.

[0014] In a third aspect, the embodiment of the present disclosure further provides a mapping device of a positioning reference signal, applied to a terminal, comprising:

[0015] a obtaining module, configured to obtain mapping information of the positioning reference signal, wherein the mapping information indicates relative resource element offsets of at least part of symbols in a positioning reference signal resource;

[0016] a determining module, configured to determine, according to the mapping information, the relative resource element offset of each symbol in the positioning reference signal resource.

[0017] In a fourth aspect, the embodiment of the present disclosure provides a mapping device of a positioning reference signal, applied to a network side device, comprising:

[0018] a sending module, configured to send, to a terminal, mapping information of the positioning reference signal, wherein the mapping information indicates relative resource element offsets of at least part of symbols in a positioning reference signal resource.

[0019] In a fifth aspect, the embodiment of the present disclosure further provides a communication device, comprising a processor, a memory, and a computer program stored in the memory and running on the processor, wherein the processor implements the steps of the mapping method of the positioning reference signal when executing the computer program.

[0020] In a sixth aspect, the embodiment of the present disclosure provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the mapping method of the positioning reference signal.

[0021] In the above scheme, the terminal acquires mapping information of the positioning reference signal, the mapping information indicating a relative resource element offset of at least part of symbols in the positioning reference signal resource, and determines the relative resource element offset of each symbol in the positioning reference signal resource according to the mapping information, so that the terminal can determine the resource element position of the positioning reference signal according to the relative resource element offset of each symbol, and transmit the positioning reference signal through the resource element position. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] FIG. 1 shows a block diagram of a mobile communication system to which embodiments of the present disclosure can be applied;

[0024] FIG. 2 shows a schematic diagram of an LTE PRS signal mapping structure of a normal cyclic prefix;

[0025] FIG. 3 shows a schematic diagram of an LTE PRS signal mapping structure of an extended cyclic prefix;

[0026] FIG. 4 shows a schematic diagram of equivalent comb-1 and equivalent comb-2 under a comb-4 structure;

[0027] FIG. 5 shows a flowchart of a mapping method of a positioning reference signal of a terminal according to an embodiment of the present disclosure;

[0028] FIG. 6 shows a flowchart of a mapping method of a positioning reference signal of a network-side device according to an embodiment of the present disclosure;

[0029] FIGS. 7-37 show schematic diagrams of REs of a positioning reference signal resource according to embodiments of the present disclosure;

[0030] FIG. 38 shows a schematic diagram of a module structure of a terminal according to an embodiment of the present disclosure;

[0031] FIG. 39 shows a block diagram of a terminal according to an embodiment of the present disclosure;

[0032] FIG. 40 shows a schematic diagram of a module structure of a network-side device according to an embodiment of the present disclosure;

[0033] FIG. 41 shows a block diagram of a network-side device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0034] Exemplary embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is to be understood that the present disclosure can be embodied in various forms without being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the present disclosure to those skilled in the art.

[0035] The terms "first", "second", and the like, as used in the specification and claims of this application, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the use of such terms as "first" and "second" are arbitrary labels and are used for purposes of distinguishing between the elements being referred to so that the exemplary embodiments of the present application can be understood. Furthermore, the terms "comprise", "comprises", "comprising", "include", "includes", "including" and the like are used synonymously to denote or describe a process, method, article, or apparatus that comprises a collection of steps or units without necessarily being limited to the collection of steps or units that is explicitly identified by the steps or units. "And / or" as used in the specification and in the claims means at least one of the things it conjoins.

[0036] The technology described herein is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and can also be used for various 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" are often used interchangeably. A CDMA system can implement a radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. UTRA includes Wideband-CDMA (WCDMA) and other variants of CDMA. A TDMA system can implement a radio technology such as Global System for Mobile Communications (GSM). An OFDMA system can implement a radio technology such as Ultra Mobile Broadband (UMB), Evolution-UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of Universal Mobile Telecommunication System (UMTS). LTE and LTE-A are releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2).The techniques described herein can be used for the systems and radio technologies mentioned above as well as other systems and radio technologies. The description above, however, describes a NR system for purposes of example, and NR terminology is used in much of the description above, although the techniques are applicable beyond NR systems.

[0037] The following description provides examples, and is not limiting of the scope, applicability, or configuration set forth in the claims. Changes can be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples can omit, substitute, or add various procedures or components as appropriate. For instance, the methods described can be performed in an order different from that described, and various steps can be added, omitted, or combined. Also, features described with respect to certain examples can be combined in other examples.

[0038] Please refer to FIG. 1, which shows a block diagram of a wireless communication system to which embodiments of the present disclosure can be applied. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 can also be referred to as a terminal device or a user terminal (User Equipment, UE). The terminal 11 can be a terminal side device such as a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (Personal Digital Assistant, PDA), a mobile Internet device (Mobile Internet Device, MID), a wearable device, or a vehicle-mounted device. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present disclosure. The network side device 12 can be a base station or a core network. The base station can be a base station of 5G and later versions (for example, gNB, 5G NR NB, etc.), or a base station in other communication systems (for example, eNB, WLAN access point, or other access points, etc.), or a location server (for example, E-SMLC or LMF (Location Manager Function)). The base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, or some other appropriate term in the field, as long as the same technical effect is achieved. The base station is not limited to a specific technical term, and only a base station in an NR system is taken as an example in the embodiments of the present disclosure, but the specific type of the base station is not limited.

[0039] The base station can communicate with the terminal 11 under the control of a base station controller, which can be part of the core network or certain base stations in various examples. Some of the base stations can communicate control information or user data with the core network through backhaul. In some examples, some of these base stations can communicate, directly or indirectly, with each other over the backhaul links, which can be wired or wireless communication links. The wireless communication system can support operation on multiple carriers (different frequency waveform signals). Multi-carrier transmitters can transmit modulated signals simultaneously on the multiple carriers. For example, each communication link can be a multi-carrier signal modulated according to the various radio technologies. Each modulated signal can be sent on a different carrier and can carry control information (e.g., reference signals, control channels, etc.), overhead information, data, etc.

[0040] A base station can wirelessly communicate with the terminal 11 via one or more access point antennas. Each base station can provide communication coverage for its respective coverage area. The coverage area for an access point can be divided into sectors making up only a portion of the coverage area. A wireless communication system can include base stations of different types (e.g., macro base stations, micro base stations, or pico base stations). Base stations can also utilize different radio technologies, such as cellular or WLAN radio access technologies. Base stations can be associated with the same or different access networks or operator deployments. The coverage areas of different base stations, including the coverage areas of base stations of the same or different types, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks, can overlap.

[0041] Communication links in a wireless communication system can include uplinks for carrying Uplink (UL) transmissions (e.g., from a terminal 11 to a network-side device 12) or downlinks for carrying Downlink (DL) transmissions (e.g., from a network-side device 12 to a terminal 11). UL transmissions can also be referred to as reverse link transmissions, while DL transmissions can also be referred to as forward link transmissions. Downlink transmissions can be made using a licensed frequency band, an unlicensed frequency band, or both. Similarly, uplink transmissions can be made using a licensed frequency band, an unlicensed frequency band, or both.

[0042] Positioning Reference Signal (PRS) is a reference signal (RS) used for downlink positioning. A User Equipment (UE) measures PRS transmitted from multiple cells or multiple transmission points to obtain Reference Signal Time Difference (RSTD) between the multiple cells or transmission points. The UE then sends the measured RSTD information to an Evolved Serving Mobile Location Center (E-SMLC), which calculates the UE's location.

[0043] In Long Term Evolution (LTE), PRS can be transmitted in resource blocks in downlink subframes configured for positioning reference signal transmission. PRS is transmitted on antenna port 6, PRS cannot be mapped to resource elements (REs) allocated to physical broadcast channel (PBCH), primary synchronization signal (PSS), secondary synchronization signal (SSS), PRS does not overlap with any antenna port-specific cell-specific reference signals. Adjacent cells obtain a number of subcarrier frequency offsets by physical cell ID (PCI) modulo 6 to avoid PRS overlap.

[0044] PRS signal generation and mapping is as follows:

[0045] Reference signal sequence is defined as

[0046]

[0047] where n s is the slot number in a radio frame, l is the number of orthogonal frequency division multiplexing (OFDM) symbols in a slot, and c(i) is a pseudo-random sequence.

[0048] The pseudo-random sequence is initialized as

[0049]

[0050] where, in general is the same as (cell ID) and is configured according to high-layer signaling when the high-layer signaling is indicated. For normal cyclic prefix (CP) N CP = 1, and for extended cyclic prefix N CP = 0.

[0051] The time-frequency resource mapping formula of the reference signal is as follows:

[0052]

[0053] where, for normal cyclic prefix,

[0054]

[0055]

[0056]

[0057]

[0058] For extended cyclic prefix

[0059]

[0060]

[0061]

[0062]

[0063] Where the bandwidth (number of resource blocks, RBs) of the positioning reference signal is configured by higher layers, the cell-specific frequency offset is calculated as

[0064] The mapping of PRS signals in RBs is shown in FIG. 2 and FIG. 3. As can be seen from the figures, the PRS signals are designed based on PRS ID modulo 6, and the signals have strong autocorrelation and orthogonal characteristics. When the signals are subjected to correlation detection, the highest correlation peak can be easily determined, and the signal interference from neighboring cells is eliminated, thereby ensuring the accuracy of Observed Time Difference of Arrival (OTDOA) measurement.

[0065] In addition to downlink positioning, LTE also supports uplink positioning. The uplink reference signal used in LTE uplink positioning is Sounding Reference Signal (SRS). The UE uplink reference signal reception time difference is estimated by a location measurement unit (LMU) located at the eNB side to estimate the UE position, without the need for the UE to participate in positioning measurement and calculation. In order to obtain the uplink measurement quantity, the LMU needs to know the characteristics of the SRS signal transmitted by the UE within the required time, which is used to calculate the uplink measurement quantity. These characteristics should be static for the relatively periodically transmitted SRS signal in the uplink measurement process. Therefore, the E-SMLC instructs the serving eNB to instruct the UE to transmit the SRS signal for uplink positioning. The eNB makes the final decision on resource allocation and returns the configuration information to the E-SMLC, so that the E-SMLC can configure the LMU. The eNB can decide (for example, in the case where there is no resource available) to configure zero resources to the UE and report the zero resource configuration to the E-SMLC.

[0066] ​​New Radio (NR) redesigns the downlink positioning reference signal (DL PRS) based on NR system. PRS supports transmission in FR1 maximum 100M and FR2 maximum 400M. The NR PRS bandwidth configuration is independent of the bandwidth part (BWP) configuration. When the PRS bandwidth is larger than the BWP bandwidth, the UE is supported to measure PRS using the measurement gap.

[0067] PRS supports beamforming, so the concept of PRS resource is introduced. The PRS resource ID can correspond to one beam in one transmission reception point (TRP). At the same time, in order to increase the audibility of the UE, PRS beam sweeping and PRS beam repetition are supported. In addition, PRS reference neighbor cell RS is supported as a spatial quasi co-located (QCL) reference signal.

[0068] PRS supports staggered patterns and supports flexible pattern configuration. The comb structure of PRS resource can at least support {2, 4, 6}; the symbol number can at least support {2, 4, 6}. At present, the comb structure has not excluded {1, 8, 12}; the symbol number has not excluded {1, 3, 8, 12}.

[0069] For uplink positioning, the NR-based SRS is extended.

[0070] In order to enhance the probability of gNB detecting SRS, the SRS comb structure is extended to {2, 4, 8}. At the same time, the symbol number of SRS resource is increased to {1, 2, 4, 8, 12}, and other comb structures and symbol numbers are no longer supported.

[0071] In order to improve the flexibility of SRS, the symbol position occupied by SRS is extended to any position in the slot.

[0072] In order to improve the positioning performance, the SRS pattern is extended to the staggered pattern, similar to the DL PRS.

[0073] In order to support beamforming and enhance uplink coverage, SRS beam sweeping and SRS beam repetition are supported. In addition, SRS reference neighbor cell RS is supported as a QCL reference signal.

[0074] Regarding SRS power control, SRS reference neighbor cell path loss RS is supported to calculate the path loss, in order to enhance the audibility of the neighbor cell.

[0075] Further, the RE pattern configuration of the DL PRS contains the offset of the first symbol of the DL PRS resource. Meanwhile, the relative RE offset of the following symbols is defined, which is the offset of the RE offset of the first symbol in the frequency domain. The relative RE offset of the following symbols is derived from the configured symbol number of the DL PRS resource, the comb size of the DL PRS resource, and the symbol index in the DL PRS resource.

[0076] In addition, similar conclusions are reached regarding the mapping of the UL PRS pattern.

[0077] In the positioning reference signal resource, in addition to the starting symbol, each of the following symbols has a relative RE offset. Under the same comb size, the same length of the relative RE offset array or sequence can be configured according to the symbol number of the positioning reference signal resource, but different symbol numbers may require different arrays or sequences. Under the same comb size, a pattern with a larger symbol number may be a repetition of a pattern with a smaller symbol number, and if the above method is used to configure the array or sequence, the overhead is large.

[0078] In addition, in the case shown in FIG. 4, how to configure the relative RE offset has not been determined. In FIG. 4, the part filled with dots is the RE of the positioning reference signal resource, and the left half of FIG. 4 is equivalent to comb-1, and the right half of FIG. 4 is equivalent to comb-2.

[0079] Further, under the same comb size and the same symbol number, multiple patterns may be supported, and how to configure the relative RE offset to support multiple patterns has not been determined.

[0080] Embodiments of the present disclosure provide a mapping method of a positioning reference signal, a terminal, and a network side device.

[0081] Embodiments of the present disclosure provide a mapping method of a positioning reference signal, which is applied to a terminal, as shown in FIG. 5, comprising:

[0082] Step 101: Obtain mapping information of the positioning reference signal, the mapping information indicating the relative resource particle offset of at least part of the symbols in the positioning reference signal resource;

[0083] Step 102: Determine the relative resource particle offset of each symbol in the positioning reference signal resource according to the mapping information.

[0084] In this embodiment, the terminal acquires mapping information of the positioning reference signal, the mapping information indicating relative resource element offsets of at least part of symbols in the positioning reference signal resource, and determines relative resource element offsets of each symbol in the positioning reference signal resource according to the mapping information, so that the terminal can determine resource element positions of the positioning reference signal according to the relative resource element offsets of each symbol, and transmit the positioning reference signal through the resource element positions.

[0085] The positioning reference signal can also be referred to as a positioning reference signal resource.

[0086] Optionally, after determining the relative resource element offsets of each symbol in the positioning reference signal resource according to the mapping information, the method further comprises:

[0087] determining resource element positions of the positioning reference signal according to the relative resource element offsets of each symbol;

[0088] transmitting the positioning reference signal through the resource element positions.

[0089] Optionally, the mapping information is used to indicate configuration information of a set of relative resource element offsets in a table, and the acquiring of the mapping information of the positioning reference signal comprises:

[0090] acquiring a table corresponding to the comb structure of the positioning reference signal, the table containing configuration information of at least one set of relative resource element offsets.

[0091] Optionally, the acquiring of the mapping information of the positioning reference signal further comprises:

[0092] acquiring indication information sent by a network side device, the indication information being used to indicate that the terminal uses configuration information of one set of relative resource element offsets in the table as the mapping information of the positioning reference signal.

[0093] Optionally, one set of the configuration information contains values, respectively indicating relative resource element offsets of the first symbols in the positioning reference signal resource, the relative resource element offsets being offsets of the resource element offset of the first symbol.

[0094] Optionally, the value of the first symbol is not greater than the number of symbols in the positioning reference signal resource.

[0095] Optionally, if the value of the first symbol is less than the number of symbols in the positioning reference signal resource. The relative resource element offset of the l'th symbol of the positioning reference signal resource to the 1'th symbol is the same as the relative resource element offset of the l'th symbol of the positioning reference signal resource to the 1'th symbol, that is, the resource element position of the l'th symbol of the positioning reference signal resource to the 1'th symbol is the same, wherein l' is greater than or equal to 1. The 0th symbol represents the symbol at which the positioning reference signal resource starts. The 0th symbol represents the symbol at which the positioning reference signal resource starts. The 0th symbol represents the symbol at which the positioning reference signal resource starts.

[0096] Optionally, the value of the l' is equal to the comb structure size of the positioning reference signal resource. Optionally, the value of the l' is equal to the comb structure size of the positioning reference signal resource.

[0097] Optionally, the obtaining of the configuration information comprises at least one of the following manners:

[0098] receiving the configuration information sent by the network side device;

[0099] obtaining the preconfigured configuration information;

[0100] obtaining the protocol-defined configuration information.

[0101] The network side device can send part of the configuration information, preconfigure part of the configuration information, or define part of the configuration information by a protocol; the network side device can also send all the configuration information; all the configuration information can also be preconfigured; or all the configuration information can be defined by a protocol.

[0102] Optionally, the mapping information is used to indicate a generation formula of the terminal for calculating the relative resource element offset of each symbol of the positioning reference signal, and the obtaining of the mapping information of the positioning reference signal comprises:

[0103] obtaining at least one generation formula of the relative resource element offset corresponding to the comb structure of the positioning reference signal, the generation formula being used to generate the relative resource element offset of each symbol of the positioning reference signal, and specifically, the generation formula being used to generate the mapping information of the positioning reference signal, the mapping information being the relative resource element offset of each symbol.

[0104] Optionally, the obtaining of the mapping information of the positioning reference signal further comprises:

[0105] obtaining indication information sent by the network side device, the indication information being used to indicate that the terminal generates the relative resource element offset of each symbol of the positioning reference signal by using one of the at least one generation formula.

[0106] Optionally, the calculation parameter of the generation formula comprises at least one of the following:

[0107] the comb structure of the positioning reference signal resource;

[0108] the symbol index in the positioning reference signal resource;

[0109] Number of symbols for the location reference signal resource.

[0110] Optionally, the number of symbols for locating reference signal resources. Not less than X, where X is the period of the generating formula or the period of the sequence generated by the generating formula, and X is related to K. TC Equal to or equal to K TC One of the factors, K TC This indicates the size of the comb structure of the positioning reference signal resource.

[0111] Optionally, obtaining the generation formula includes at least one of the following methods:

[0112] Receive the generation formula sent by the network-side device;

[0113] Obtain the pre-configured generation formula;

[0114] Obtain the generation formula defined in the protocol.

[0115] The network-side device can send part of the generated formula, pre-configure part of the generated formula, or define part of the generated formula according to the protocol; it can also send all the generated formulas; it can also pre-configure all the generated formulas; or it can define all the generated formulas according to the protocol.

[0116] Optionally, the relative resource particle offset of the first symbol of the positioning reference signal resource is 0.

[0117] Optionally, the positioning reference signal is a downlink positioning reference signal, and the indication information is carried by the Long Term Evolution Positioning Protocol (LPP) signaling sent by the network-side device.

[0118] Optionally, the comb size supported by the downlink positioning reference signal includes at least one of 2, 4, 6, 8, and 12.

[0119] Optionally, the positioning reference signal is an uplink positioning reference signal, and the indication information is carried by the Radio Resource Control (RRC) signaling or LPP signaling sent by the network-side device.

[0120] Optionally, the comb size supported by the uplink positioning reference signal includes at least one of 2, 4, and 8.

[0121] This disclosure also provides a method for mapping positioning reference signals, applied to a network-side device, as shown in FIG6, including:

[0122] Step 201: Send mapping information of the positioning reference signal to the terminal, the mapping information indicating the relative resource particle offset of at least some symbols in the positioning reference signal resource.

[0123] In this embodiment, the network side device sends mapping information of the positioning reference signal to the terminal, the mapping information indicates relative resource element offsets of at least part of symbols in the positioning reference signal resource, and the terminal determines relative resource element offsets of each symbol in the positioning reference signal resource according to the mapping information. In this way, the terminal can determine resource element positions of the positioning reference signal according to the relative resource element offsets of each symbol, and transmit the positioning reference signal through the resource element positions.

[0124] Optionally, the sending of the mapping information of the positioning reference signal to the terminal comprises:

[0125] The table corresponding to the comb structure of the positioning reference signal is sent to the terminal, and the table contains configuration information of at least one set of relative resource element offsets.

[0126] Optionally, the sending of the mapping information of the positioning reference signal to the terminal further comprises:

[0127] The indication information is sent to the terminal, and the indication information is used to indicate that the terminal uses configuration information of one set of relative resource element offsets in the table as the mapping information of the positioning reference signal.

[0128] Optionally, one set of the configuration information contains values, respectively indicating relative resource element offsets of the first symbols in the positioning reference signal resource, and the relative resource element offsets are offsets of resource element offsets of the first symbol.

[0129] Optionally, is not greater than the number of symbols of the positioning reference signal resource.

[0130] Optionally, if is less than the number of symbols of the positioning reference signal resource, the relative resource element offsets of the l'th symbol and the (l+1)'th symbol in the positioning reference signal resource are the same, wherein l' is greater than or equal to 0. The 0th symbol represents a symbol at which the positioning reference signal resource starts.

[0131] Optionally, is equal to the comb structure size of the positioning reference signal resource.

[0132] Optionally, the sending of the mapping information of the positioning reference signal to the terminal comprises:

[0133] ​sending at least one generation formula of relative resource element offset corresponding to the comb structure of the positioning reference signal to the terminal, the generation formula being used to generate the relative resource element offset of each symbol of the positioning reference signal.

[0134] Optionally, the sending of the mapping information of the positioning reference signal to the terminal further comprises:

[0135] sending indication information to the terminal, the indication information being used to instruct the terminal to generate the relative resource element offset of each symbol of the positioning reference signal by using one of the at least one generation formula.

[0136] Optionally, the calculation parameters of the generation formula comprise at least one of:

[0137] a comb structure of the positioning reference signal resource;

[0138] a symbol index within the positioning reference signal resource;

[0139] a number of symbols of the positioning reference signal resource.

[0140] Optionally, the number of symbols of the positioning reference signal resource is not less than X, X being a period of the generation formula or a period of a sequence generated by the generation formula, X being equal to K TC or one of the factors of K TC , K TC representing a comb structure size of the positioning reference signal resource.

[0141] Optionally, the relative resource element offset of a first symbol of the positioning reference signal resource is 0.

[0142] Optionally, the positioning reference signal is a downlink positioning reference signal, and the indication information is carried by long term evolution positioning protocol (LPP) signaling sent by the network side device.

[0143] Optionally, the comb structure size supported by the downlink positioning reference signal comprises at least one of 2, 4, 6, 8 and 12.

[0144] Optionally, the positioning reference signal is an uplink positioning reference signal, and the indication information is carried by radio resource control (RRC) signaling or LPP signaling sent by the network side device.

[0145] Optionally, the comb structure size supported by the uplink positioning reference signal comprises at least one of 2, 4 and 8.

[0146] The mapping method of the positioning reference signal of the present disclosure will be further introduced below in combination with specific embodiments:

[0147] Embodiment One

[0148] In this embodiment, the terminal is indicated by a table to indicate the relative RE offset of the symbol of the positioning reference signal resource.

[0149] The table can contain at least one configuration information of relative RE offset, which can be expressed as an array, sequence, vector, or unit. According to the protocol agreement and / or network side device indication, the UE uses a certain configuration information in the table to derive the relative RE offset. The configuration information can contain a number of values to represent the relative RE offset of the first symbols of the positioning reference signal resource.

[0150] Further, the number of symbols of the positioning reference signal resource configured by the network side is not less than

[0151] Further, if the number of symbols is greater than The UE should assume that the RE position (or relative RE offset) of the l'th symbol in the positioning reference signal resource is the same as that of the symbol. Wherein, l' is not less than indicates the number of symbols occupied by the resource. The 0th symbol indicates the symbol where the positioning reference signal resource starts.

[0152] Further, the relative RE offset of the first symbol of the positioning reference signal resource is 0 by default.

[0153] Specifically, the network side can configure one of the following comb structures:

[0154] For Comb-2 structure, the table corresponding to the relative RE offset configured by the protocol agreement or the network side is as follows, the table only contains one configuration, that is, configuration 1, and the configuration 1 includes two values to represent the relative RE offset of the first 2 symbols of the positioning reference signal resource.

[0155] Configuration index Relative RE offset configuration Configuration 1 {0, 1}

[0156] For Comb-4 structure, the table corresponding to relative RE offset is agreed in protocol and contains multiple configurations, one of which is indicated to UE by network side. The configurations of the table are shown as follows. It can be seen that the table contains at least the following 2 configurations, such as configuration 1, configuration 2, configuration 3, and so on.

[0157] Alternatively, the network side directly configures or agrees with the protocol a table corresponding to a relative RE offset, and the table contains only one configuration, and the value of the configuration can be one of the following configurations (configuration 1, configuration 2, configuration 3, and so on).

[0158]

[0159] When the value of the configuration is configuration 3, the positioning reference signal resource is an equivalent Comb-2 structure.

[0160] For Comb-6 structure, the table corresponding to relative RE offset is agreed in protocol and contains multiple configurations, one of which is indicated to UE by network side. The configurations of the table are shown as follows. It can be seen that the table contains at least the following 2 configurations, such as configuration 1, configuration 2, configuration 3, configuration 4, configuration 5, and so on.

[0161] Alternatively, the network side directly configures or agrees with the protocol a table corresponding to a relative RE offset, and the table contains only one configuration, and the value of the configuration can contain one of the following configurations (configuration 1, configuration 2, configuration 3, configuration 4, configuration 5, and so on).

[0162]

[0163]

[0164] Among them, configuration 4 has two values, and one of them can be selected.

[0165] For Comb-8 structure, the table corresponding to relative RE offset is agreed in protocol and contains multiple configurations, one of which is indicated to UE by network side. The configurations of the table are shown as follows. It can be seen that the table contains at least the following 2 configurations, such as configuration 1, configuration 2, configuration 3, configuration 4, configuration 5, configuration 6, configuration 7, and so on.

[0166] Alternatively, the network side directly configures or agrees with the protocol a table corresponding to a relative RE offset, and the table contains only one configuration, and the value of the configuration can contain one of the following configurations (configuration 1, configuration 2, configuration 3, configuration 4, configuration 5, configuration 6, configuration 7, and so on).

[0167]

[0168] For Comb-12 structure, the table corresponding to relative RE offset is configured by the protocol, and one of the configurations is indicated to the UE by the network side. The configurations of the table are as follows, and it can be seen that at least the following 2 configurations are included in the table, such as configuration 1, configuration 2, configuration 3, configuration 4, configuration 5, configuration 6, configuration 7, configuration 8, configuration 9, configuration 10, configuration 11, configuration 12, configuration 13, configuration 14, configuration 15…

[0169] Alternatively, the network side directly configures a table corresponding to a relative RE offset for the UE, and the table only includes one configuration, and the value of the configuration can include one of the following configurations (configuration 1, configuration 2, configuration 3, configuration 4, configuration 5, configuration 6, configuration 7, configuration 8, configuration 9, configuration 10, configuration 11, configuration 12, configuration 13, configuration 14, configuration 15…).

[0170] Configuration index Relative RE offset configuration Configuration 1 {0, 6, 1, 7, 2, 8, 3, 9, 4, 10, 5, 11} Configuration 2 {0, 4, 8, 1, 5, 9, 2, 6, 10, 3, 7, 11} Configuration 3 {0, 6, 3, 9, 1, 7, 4, 10, 2, 8, 5, 11} Configuration 4 {0, 3, 6, 9, 1, 4, 7, 10, 2, 5, 8, 11} Configuration 5 {0, 2, 4, 6, 8, 10, 1, 3, 5, 7, 9, 11} Configuration 6 {0, 6, 2, 8, 4, 10, 1, 7, 3, 9, 5, 11} Configuration 7 {0, 4, 8, 2, 6, 10, 1, 5, 9, 3, 7, 11} Configuration 8 {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11} Configuration 9 {0, 2, 4, 6, 8, 10} Configuration 10 {0, 4, 8, 2, 6, 10} Configuration 11 {0, 6, 2, 8, 4, 10} Configuration 12 {0, 3, 6, 9} Configuration 13 {0, 6, 3, 9} Configuration 14 {0, 4, 8} / {0, 8, 4} Configuration 15 {0, 6}…

[0171] Embodiment two

[0172] In this embodiment, the relative RE offset of the symbol of the positioning reference signal resource is indicated to the terminal by generating a formula.

[0173] Specifically, according to the protocol agreement and / or network side indication, the UE uses a certain generation formula to derive the relative RE offset of each symbol of the positioning reference signal resource. According to the generation formula, the UE can generate the relative RE offset of each symbol of the positioning reference signal resource. The generation formula is related to the comb structure of the positioning reference signal resource, the symbol index within the resource, and / or the number of symbols. In the generation formula, l' represents the symbol index within the resource, wherein represents the number of symbols occupied by the positioning reference signal resource, l' = 0 represents the starting symbol index of the positioning reference signal resource, K TC represents the comb structure size of the positioning reference signal resource.

[0174] Further, the relative RE offset of the first symbol of the positioning reference signal resource is 0 by default.

[0175] Further, the number of symbols of the positioning reference signal resource configured by the network side is not less than X. X represents the period of the generation formula (or the period of the sequence generated by the generation formula), which can be equal to K TC or one of the factors of K TC .

[0176] Specifically, the network side can configure one of the following comb structures:

[0177] For the Comb-2 structure, the relative RE offset generation formula of each symbol of the positioning reference signal resource agreed by the protocol is formula (1) (only one):

[0178]

[0179] For the Comb-4 structure, the relative RE offset generation formula of each symbol of the positioning reference signal resource agreed by the protocol is one of the generation formulas in formulas (2)-(4), specifically, there are a total of 3 generation formulas as follows, corresponding to pattern configurations 1, 2 and 3 respectively.

[0180] Alternatively, the protocol agrees on multiple generation formulas, and one of them is indicated by the network side. The multiple generation formulas at least include two of formulas (2)-(4):

[0181]

[0182] RE relative_offset = l' mod (K TC ) (3)

[0183] RE relative_offset = K TC / 2 * l' mod(2) (4)

[0184] For Comb-6 structure, the generating formula of relative RE offset per symbol of the positioning reference signal resource is one of the formula (5) - formula (9) according to the protocol, specifically, there are 5 generating formulas in total, which correspond to pattern configuration 1, configuration 2, configuration 3, configuration 4 and configuration 5 respectively.

[0185] Alternatively, multiple generating formulas are agreed by the protocol, and one of them is indicated by the network side. The multiple generating formulas at least contain two of the formula (5) - formula (9).

[0186]

[0187]

[0188] RE relative_offset = l' mod(K TC ) (7)

[0189] RE relative_offset = K TC / 3 * l' mod(3) (8)

[0190] RE relative_offset = K TC / 2 * l' mod(2) (9)

[0191] For Comb-8 structure, the generating formula of relative RE offset per symbol of the positioning reference signal resource is one of the formula (10) - formula (16) according to the protocol, specifically, there are 7 generating formulas in total, which correspond to pattern configuration 1, configuration 2, configuration 3, configuration 4, configuration 5, configuration 6 and configuration 7 respectively.

[0192] Alternatively, multiple generating formulas are agreed by the protocol, and one of them is indicated by the network side. The multiple generating formulas at least contain two of the formula (10) - formula (16).

[0193]

[0194]

[0195]

[0196] wherein the formula (12) can be further optimized as the following formula:

[0197]

[0198] RE relative_offset = l' mod (K TC / 4) (13)

[0199]

[0200] wherein the formula (14) can be further optimized as the following formula:

[0201]

[0202] RE relative_offset = K TC / 4 * l' mod (4) (15)

[0203] RE relative_offset = K TC / 2 * l' mod (2) (16)

[0204] For the Comb-12 structure, the generation formula of the relative RE offset of each symbol of the positioning reference signal resource is agreed by the protocol as one of the formula (17) to formula (31), and specifically, there are a total of 15 generation formulas, which correspond to pattern configurations 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15 respectively.

[0205] Alternatively, a plurality of generation formulas are agreed by the protocol, and one of them is indicated by the network side. The plurality of generation formulas at least contain two of the formula (17) to formula (31).

[0206]

[0207]

[0208]

[0209] wherein the formula (19) can be further optimized as the following formula:

[0210]

[0211]

[0212]

[0213]

[0214] wherein formula (22) can be further optimized as follows:

[0215]

[0216]

[0217] wherein formula (23) can be further optimized as follows:

[0218]

[0219] RE relative_offset = l' mod (K TC ) (24)

[0220] RE relative_offset = K TC / 6 * l' mod (6) (25)

[0221]

[0222] wherein formula (26) can be further optimized as follows:

[0223]

[0224]

[0225] wherein formula (27) can be further optimized as follows:

[0226]

[0227] RE relative_offset = K TC / 4 * l' mod (4) (28)

[0228]

[0229] wherein formula (29) can be further optimized as follows:

[0230]

[0231] RE relative_offset = K TC / 3 * l' mod (3) (30)

[0232] RE relative_offset = K TC / 2 * l' mod (2) (31)

[0233] Example Three

[0234] In this embodiment, the terminal is indicated by an array of the relative RE offset of the symbol of the positioning reference signal resource.

[0235] The network side configures or agrees on an array (also can be sequence or vector) with a length of to represent the relative RE offset of the first symbols of the positioning reference signal resource. According to the array, the UE can derive the relative RE offset of each symbol after the first symbol of the positioning reference signal resource.

[0236] Further, the number of symbols of the positioning reference signal resource configured by the network side is not less than the length of the array

[0237] Further, if the number of symbols is greater than the length of the array UE should assume that the RE position (or relative RE offset) of the l'th symbol in the positioning reference signal resource is the same as that of the symbol. Wherein, l' is not less than Wherein indicates the number of symbols occupied by the positioning reference signal resource.

[0238] Further, the relative RE offset of the first symbol of the positioning reference signal resource is 0 by default.

[0239] Specifically, the network side can configure one of the following comb structures:

[0240] For Comb-2 structure, the array corresponding to the relative RE offset is agreed by the protocol or configured by the network side as {0, 1}.

[0241] For Comb-4 structure, the network side indicates one of the array configurations of the multiple array configurations of the relative RE offset agreed by the protocol, and the array configurations are as follows, and the multiple array configurations include at least two of configuration 1, configuration 2, and configuration 3, ….

[0242] Alternatively, the network side configures or agrees on an array corresponding to the relative RE offset for the UE, and the values of the array can be one of the following configurations (configuration 1, configuration 2, configuration 3, …).

[0243] PRS pattern configuration Relative RE offset array configuration 1 {0, 2, 1, 3}

[0244] Configuration 2 {0, 1, 2, 3} Configuration 3 {0, 2}…

[0245] For Comb-6 structure, the protocol agrees multiple array configurations corresponding to relative RE offset, and one of the array configurations is indicated by the network side, the array configurations are as follows, the multiple array configurations include at least two of configuration 1, configuration 2 and configuration 3, configuration 4, configuration 5…

[0246] Alternatively, the network side configures or the protocol agrees an array corresponding to one relative RE offset, the value of the array can be one of the following configurations (configuration 1, configuration 2, configuration 3, configuration 4, configuration 5…).

[0247]

[0248] For Comb-8 structure, the protocol agrees multiple array configurations corresponding to relative RE offset, and one of the array configurations is indicated by the network side, the array configurations are as follows, the multiple array configurations include at least two of configuration 1, configuration 2, configuration 3, configuration 4, configuration 5, configuration 6 and configuration 7…

[0249] Alternatively, the network side configures or the protocol agrees an array corresponding to one relative RE offset, the value of the array can be one of the following configurations (configuration 1, configuration 2, configuration 3, configuration 4, configuration 5, configuration 6, configuration 7…).

[0250]

[0251]

[0252] For Comb-12 structure, the protocol agrees multiple array configurations corresponding to relative RE offset, and one of the array configurations is indicated by the network side, the array configurations are as follows, the multiple array configurations include at least two of configuration 1, configuration 2, configuration 3, configuration 4, configuration 5, configuration 6, configuration 7, configuration 8, configuration 9, configuration 10, configuration 11, configuration 12, configuration 13, configuration 14, configuration 15…

[0253] Alternatively, the network side configures or agrees with the UE an array corresponding to a relative RE offset, and the array can be configured as one of the following configurations (configuration 1, configuration 2, configuration 3, configuration 4, configuration 5, configuration 6, configuration 7, configuration 8, configuration 9, configuration 10, configuration 11, configuration 12, configuration 13, configuration 14, configuration 15, …).

[0254] PRS pattern configuration Relative RE offset array configuration 1 {0, 6, 1, 7, 2, 8, 3, 9, 4, 10, 5, 11} configuration 2 {0, 4, 8, 1, 5, 9, 2, 6, 10, 3, 7, 11} configuration 3 {0, 6, 3, 9, 1, 7, 4, 10, 2, 8, 5, 11} configuration 4 {0, 3, 6, 9, 1, 4, 7, 10, 2, 5, 8, 11} configuration 5 {0, 2, 4, 6, 8, 10, 1, 3, 5, 7, 9, 11} configuration 6 {0, 6, 2, 8, 4, 10, 1, 7, 3, 9, 5, 11} configuration 7 {0, 4, 8, 2, 6, 10, 1, 5, 9, 3, 7, 11} configuration 8 {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11} configuration 9 {0, 2, 4, 6, 8, 10} configuration 10 {0, 4, 8, 2, 6, 10} configuration 11 {0, 6, 2, 8, 4, 10} configuration 12 {0, 3, 6, 9} configuration 13 {0, 6, 3, 9} configuration 14 {0, 4, 8} / {0, 8, 4} configuration 15 {0, 6} ……

[0255] The mapping method of the positioning reference signal of the present disclosure will be further introduced in combination with the accompanying drawings and specific embodiments as follows:

[0256] Embodiment one:

[0257] In this embodiment,

[0258] The symbol index of the positioning reference signal resource can be represented by l', which is the symbol count from the beginning of the positioning reference signal resource. l' = 0 represents the symbol at which the positioning reference signal resource starts. Wherein represents the number of symbols occupied by the resource.

[0259] According to the schemes described in embodiment one and embodiment three, the UE can derive the relative RE offset of the first l' symbols before the positioning reference signal resource.

[0260] The relative RE offset corresponding to the l'th symbol in the positioning reference signal resource is the relative RE offset of the symbol with index ​The relative RE offsets of the symbols of the positioning reference signal resource are the same.

[0261] Embodiment II:

[0262] According to the agreement and / or network side indication, the UE uses a certain generation formula to derive the relative RE offset of each symbol of the positioning reference signal resource. According to the generation formula, the UE can generate the relative RE offset of each symbol of the positioning reference signal resource. The generation formula is related to the comb structure of the positioning reference signal resource, the symbol index within the resource and / or the number of symbols. In the generation formula, l' represents the symbol index within the resource. wherein represents the number of symbols occupied by the resource, and l' = 0 represents the starting symbol index of the resource. TC represents the comb structure size of the resource.

[0263] Further, the number of symbols of the positioning reference signal resource configured by the network side is not less than K TC .

[0264] Further, if the number of symbols is greater than K TC , the UE should assume that the RE position (or relative RE offset) of the l'th symbol in the positioning reference signal resource is the same as that of the l'-K TC th symbol. Wherein, l' is not less than K TC . wherein represents the number of symbols occupied by the resource, and l' = 0 represents the starting symbol index of the resource.

[0265] Specifically, the network side can configure one of the following comb structures:

[0266] For Comb-2 structure, the relative RE offset generation formula of each symbol of the positioning reference signal resource is agreed by the protocol as formula (1) (only one):

[0267]

[0268] For Comb-4 structure, the relative RE offset generation formula of each symbol of the positioning reference signal resource is agreed by the protocol as one of formula (2) - formula (3).

[0269] Alternatively, multiple generation formulas are agreed by the protocol, and one of them is indicated by the network side. The multiple generation formulas include formulas (2)-(3).

[0270]

[0271] RE relative_offset = l' mod (K TC ) (3)

[0272] For the Comb-6 structure, the generation formula of the relative RE offset of each symbol of the positioning reference signal resource agreed by the protocol is one of formulas (5)-(7).

[0273] Alternatively, multiple generation formulas are agreed by the protocol, and one of them is indicated by the network side. The multiple generation formulas include at least two of formulas (5)-(7).

[0274]

[0275]

[0276] RE relative_offset = l' mod (K TC ) (7)

[0277] For the Comb-8 structure, the generation formula of the relative RE offset of each symbol of the positioning reference signal resource agreed by the protocol is one of formulas (10)-(13).

[0278] Alternatively, multiple generation formulas are agreed by the protocol, and one of them is indicated by the network side. The multiple generation formulas include at least two of formulas (10)-(13).

[0279]

[0280]

[0281]

[0282]

[0283] Among them, formula (12) can also be optimized as the following formula:

[0284]

[0285] RE relative_offset = l' mod (K TC ) (13)

[0286] For Comb-12 structure, the generation formula of relative RE offset per symbol of the positioning reference signal resource is agreed by the protocol as one of the generation formulas in formulas (17) - (24).

[0287] Alternatively, multiple generation formulas are agreed by the protocol, and one of them is indicated by the network side. The multiple generation formulas at least contain 2 of the formulas (17) - (24).

[0288]

[0289]

[0290]

[0291] Among them, formula (19) can also be optimized as the following formula:

[0292]

[0293]

[0294]

[0295]

[0296] Among them, formula (22) can also be optimized as the following formula:

[0297]

[0298] Among them, formula (23) can also be optimized as the following formula:

[0299]

[0300] RE relative_offset = l' mod (K TC ) (24)

[0301] Embodiment three:

[0302] This embodiment represents the relative RE offset of the positioning reference signal when the equivalent comb size is not 1. In this case, the overhead can be saved.

[0303] According to the protocol agreement and / or network side indication, the UE uses a certain generating formula to derive the relative RE offset of each symbol of the positioning reference signal resource. According to the generating formula, the UE can generate the relative RE offset of each symbol of the positioning reference signal resource. The generating formula is related to the comb structure of the positioning reference signal resource, the symbol index within the resource, and the number of symbols. l' represents the symbol index within the resource. wherein represents the number of symbols occupied by the positioning reference signal resource, and l' = 0 represents the starting symbol index of the positioning reference signal resource. K TC represents the comb structure size of the positioning reference signal resource.

[0304] Further, the number of symbols of the positioning reference signal resource configured by the network side is not less than X. X represents the period of the generating formula (or the period of the sequence generated by the generating formula) and is one of the factors of K TC .

[0305] Further, if the number of symbols is greater than X, the UE should assume that the RE position (or relative RE offset) of the l'th symbol in the positioning reference signal resource is the same as that of the l'-X'th symbol. Wherein, l' is not less than K TC . wherein represents the number of symbols occupied by the positioning reference signal resource, and l' = 0 represents the starting symbol index of the positioning reference signal resource. That is, the relative RE offset corresponding to the l'th symbol in the positioning reference signal resource is the same as the relative RE offset of the symbol with index l'mod(X) in the positioning reference signal resource.

[0306] For Comb-4 structure, the generating formula of the relative RE offset of each symbol of the positioning reference signal resource agreed by the protocol or indicated by the network side is formula (32), corresponding to pattern configuration 3. In this case, X is 2.

[0307] RE relative_offset = K TC / 2*l' mod(2) (32)

[0308] For Comb-6 structure, the generating formula of the relative RE offset of each symbol of the positioning reference signal resource agreed by the protocol or indicated by the network side can be one of formula (33) and formula (34), corresponding to pattern configuration 4 and configuration 5, respectively. In this case, X is 3 and 2, respectively.

[0309] RE relative_offset = K TC / 3 * l'mod (3) (33)

[0310] RE relative_offset = K TC / 2 * l'mod (2) (34)

[0311] For Comb-8 structure, the generation formula of relative RE offset per symbol of the positioning reference signal resource indicated by the protocol convention or the network side can be one of formulas (35)-(37), corresponding to pattern configurations 5, 6, 7 respectively. In this case, X is 4, 4, 2 respectively.

[0312]

[0313] Among them, formula (35) can also be optimized as the following formula:

[0314]

[0315] RE relative_offset = K TC / 4 * l'mod (4) (36)

[0316] RE relative_offset = K TC / 2 * l'mod (2) (37)

[0317] For Comb-12 structure, the generation formula of relative RE offset per symbol of the positioning reference signal resource indicated by the protocol convention or the network side can be one of formulas (38)-(44), corresponding to pattern configurations 9, 10, 11, 12, 13, 14, 15 respectively. In this case, X is 6, 6, 6, 4, 4, 3, 2 respectively.

[0318] RE relative_offset = K TC / 6 * l'mod (6) (38)

[0319]

[0320] Among them, formula (39) can also be optimized as the following formula:

[0321]

[0322]

[0323] wherein formula (40) can be further optimized as the following formula:

[0324]

[0325] RE relative_offset = K TC / 4 * l' mod(4) (41)

[0326]

[0327] wherein formula (42) can be further optimized as the following formula:

[0328]

[0329] RE relative_offset = K TC / 3 * l' mod(3) (43)

[0330] RE relative_offset = K TC / 2 * l' mod(2) (44)

[0331] Embodiment Four:

[0332] This embodiment four is applicable to downlink positioning reference signal resource. According to the generation formula (45) or (46) or (47), the UE can generate the relative RE offset of each symbol of the positioning reference signal resource. wherein denotes the number of symbols occupied by the downlink positioning reference signal resource, and l' = 0 denotes the starting symbol index of the downlink positioning reference signal resource.

[0333]

[0334] RE relative_offset = l' mod(K TC ) (46)

[0335] or

[0336]

[0337] wherein l' denotes the symbol index within the resource, denotes the number of symbols occupied by the resource, K TC denotes the comb structure size of the resource, and RE relative_offset is the relative resource element offset of each symbol of the positioning reference signal. l' = 0 denotes the relative resource element offset of each symbol of the positioning reference signal.

[0338] Embodiment Five:

[0339] This embodiment five is applicable to uplink positioning reference signal resource. According to the generation formula in embodiment 5, the UE can generate the Relative RE offset of each symbol of the positioning reference signal resource. Wherein represents the number of symbols occupied by the resource, and l' = 0 represents the starting symbol index of the resource.

[0340] Specifically, the generation formula includes any one of the following:

[0341]

[0342] Or,

[0343] RE relative_offset = l' mod (K TC )

[0344] Or,

[0345]

[0346] Wherein, l' represents the symbol index within the resource, represents the number of symbols occupied by the resource, and K TC represents the comb structure size of the resource, and RE relative_offset is the relative resource particle offset of each symbol of the positioning reference signal. l' = 0 represents the relative resource particle offset of each symbol of the positioning reference signal.

[0347] Or,

[0348] According to different comb size, the generation formula is as follows:

[0349] For comb-2, comb-4:

[0350]

[0351] For comb-8:

[0352]

[0353] Wherein, the generation formula of comb-8 can also be optimized as:

[0354]

[0355] Embodiment six

[0356] For different comb size, the protocol agrees a generation formula or a configuration in a table or an array.

[0357] The UE selects the corresponding generating formula, configuration in table, array according to the comb size configured by the network side.

[0358] The scheme of formula, table or array is as follows:

[0359] (1) For each comb size, a generating formula is agreed by the protocol. The UE selects the corresponding generating formula according to the comb size configured by the network side. The network side can configure one of the following comb structures:

[0360] Specifically, for comb-2, the generating formula agreed by the protocol is:

[0361]

[0362] For comb-4, the formula agreed by the protocol is one of the following:

[0363]

[0364] RE relative_offset = l'mod(K TC )

[0365] For comb-6, the generating formula agreed by the protocol is one of the following:

[0366]

[0367]

[0368] RE relative_offset = l'mod(K TC )

[0369] For comb-8, the generating formula agreed by the protocol is one of the following:

[0370]

[0371]

[0372]

[0373] RE relative_offset = l'mod(K TC )

[0374] For comb-12, the generating formula agreed by the protocol is one of the following:

[0375]

[0376]

[0377]

[0378]

[0379]

[0380]

[0381]

[0382]

[0383] (2) Agreement on a table with multiple configurations corresponding to different comb size relative RE offset configurations. The UE selects the corresponding relative RE offset configuration according to the comb size configured by the network side, and then derives the relative RE offset of each symbol. The network side can configure one of the following comb structures.

[0384]

[0385]

[0386] (3) For each comb size, an array is agreed by the protocol. The UE selects the corresponding array according to the comb size configured by the network side, and then derives the relative RE offset of each symbol. The network side can configure one of the following comb structures.

[0387]

[0388] Among them, the comb structure size supported by the downlink positioning reference signal includes at least one of 2, 4, 6, 8 and 12, and the comb structure size supported by the uplink positioning reference signal includes at least one of 2, 4 and 8.

[0389] Embodiment seven:

[0390] For downlink positioning reference signal resources (DL PRS resources), the PRS mapping formula is:

[0391] For the configured PRS resource, the UE assumes that the sequence r(m) is mapped to the resource element (k, l) μ :

[0392]

[0393] wherein,

[0394]

[0395]

[0396]

[0397] k' = 0, 1,... p PRS

[0398] m' = p PRS · n + k'

[0399] n = 0, 1,...

[0400] l = l0+ l'

[0401] wherein, β PRS is a power scaling factor; K TC is a comb size, determined by PRS frequency density, p PRS is a PRS frequency density, l is the index of PRS OFDM symbol within a slot; l0is the symbol where PRS resource starts within a slot; l' is the symbol order from the start symbol number in the order of PRS OFDM symbols, l' = 0. is the number of symbols within a PRS resource; RE relative_offset is the relative offset of symbol l' relative to the resource element offset of the first symbol of the downlink PRS resource; A is a configuration selected in a table or A is an array, A includes values, A can represent the relative resource element offset of the first symbols in the downlink PRS resource; k0is the comb offset of the first symbol of the PRS resource, or the lowest resource element position of the starting symbol in the PRS resource, related to the PRS sequence The reference point of k = 0 is subcarrier 0 in common resource block 0.

[0402] Alternatively, the PRS mapping formula is:

[0403] For a configured PRS resource, the UE assumes that the sequence r(m) is mapped to resource elements (k, l) μ :

[0404]

[0405] wherein,

[0406]

[0407]

[0408] k' = 0, 1,... p PRS

[0409] m' = p PRS · n + k'

[0410] n = 0, 1,...

[0411] l = l0+ l'

[0412] RE relative_offset =...

[0413] where β PRS is the power scaling factor; K TC is the comb size, determined by the PRS frequency density, p PRS is the PRS frequency density, l is the PRS OFDM symbol index within a slot; l0is the symbol where the PRS resource starts within a slot; l' is the symbol order from the start symbol number in the order of PRS OFDM symbols, l' = 0. is the number of symbols within a PRS resource; RE relative_offset is the relative offset of the resource element offset of symbol l' relative to the first symbol of the downlink PRS resource, which can be generated by the formula: k = k0+ l' · RE; k0is the comb offset of the first symbol of the PRS resource, or the lowest resource element position of the starting symbol in the PRS resource, which is related to the PRS sequence ; the reference point of k = 0 is subcarrier 0 in common resource block 0.

[0414] Embodiment Eight:

[0415] For the uplink positioning reference signal resource, i.e., the SRS resource for positioning, the SRS mapping formula is:

[0416] The frequency domain starting position of the SRS is determined by the following formula:

[0417]

[0418] wherein,

[0419]

[0420] wherein, is the comb offset, representing the lowest resource element position of the first symbol in a resource block; RE relative_offset is the relative offset of the symbol l' relative to the resource element offset of the first symbol of the SRS resource, which can be generated by the formula is a number of values, A can represent the relative resource element offset of the first symbols in the SRS resource; represents the symbol order from the number of symbols starting from the SRS resource, for the starting symbol of the SRS resource, l' = 0.

[0421] Alternatively, the formula is generated as

[0422]

[0423]

[0424] wherein, is the comb offset, representing the lowest resource element position of the first symbol in a resource block; RE relative_offset is the relative offset of the symbol l' relative to the resource element offset of the first symbol of the SRS resource, which can be generated by the formula represents the symbol order from the number of symbols starting from the SRS resource, for the starting symbol of the SRS resource, l' = 0.

[0425] Embodiment Nine:

[0426] The configurations of the relative RE offset and the pattern under different comb sizes are shown in FIGS. 7-37, which show the mapping relationship of the PRS signal in the RB.

[0427] For Comb-2, the configuration corresponding to the relative RE offset is {0, 1}, as shown in FIG. 7, and the part filled with dots is the resource element RE of the positioning reference signal resource.

[0428] For Comb-4, the configuration 1 corresponding to the relative RE offset is {0, 2, 1, 3}, as shown in FIG. 8, and the part filled with dots is the RE of the positioning reference signal resource; the configuration 2 corresponding to the relative RE offset is {0, 1, 2, 3}, as shown in FIG. 9, and the part filled with dots is the RE of the positioning reference signal resource; the configuration 3 corresponding to the relative RE offset is {0, 2}, as shown in FIG. 10, and the part filled with dots is the RE of the positioning reference signal resource.

[0429] For Comb-6, the configuration 1 corresponding to relative RE offset is {0, 2, 4, 1, 3, 5} as shown in FIG. 11, the part filled with dots is the RE of positioning reference signal resource; the configuration 2 corresponding to relative RE offset is {0, 3, 1, 4, 2, 5} as shown in FIG. 12, the part filled with dots is the RE of positioning reference signal resource; the configuration 3 corresponding to relative RE offset is {0, 1, 2, 3, 4, 5} as shown in FIG. 13, the part filled with dots is the RE of positioning reference signal resource; the configuration 4 corresponding to relative RE offset is {0, 2, 4} as shown in FIG. 14, the part filled with dots is the RE of positioning reference signal resource; the configuration 5 corresponding to relative RE offset is {0, 3} as shown in FIG. 15, the part filled with dots is the RE of positioning reference signal resource.

[0430] For Comb-8, the configuration 1 corresponding to relative RE offset is {0, 4, 1, 5, 2, 6, 3, 7} as shown in FIG. 16, the part filled with dots is the RE of positioning reference signal resource; the configuration 2 corresponding to relative RE offset is {0, 2, 4, 6, 1, 3, 5, 7} as shown in FIG. 17, the part filled with dots is the RE of positioning reference signal resource; the configuration 3 corresponding to relative RE offset is {0, 4, 2, 6, 1, 5, 3, 7} as shown in FIG. 18, the part filled with dots is the RE of positioning reference signal resource; the configuration 4 corresponding to relative RE offset is {0, 1, 2, 3, 4, 5, 6, 7} as shown in FIG. 19, the part filled with dots is the RE of positioning reference signal resource; the configuration 5 corresponding to relative RE offset is {0, 4, 2, 6} as shown in FIG. 20, the part filled with dots is the RE of positioning reference signal resource; the configuration 6 corresponding to relative RE offset is {0, 2, 4, 6} as shown in FIG. 21, the part filled with dots is the RE of positioning reference signal resource; the configuration 7 corresponding to relative RE offset is {0, 4} as shown in FIG. 22, the part filled with dots is the RE of positioning reference signal resource.

[0431] For Comb-12, the configuration 1 corresponding to the relative RE offset is {0, 6, 1, 7, 2, 8, 3, 9, 4, 10, 5, 11} as shown in FIG. 23, the part filled with dots is the RE of the positioning reference signal resource; the configuration 2 corresponding to the relative RE offset is {0, 4, 8, 1, 5, 9, 2, 6, 10, 3, 7, 11} as shown in FIG. 24, the part filled with dots is the RE of the positioning reference signal resource; the configuration 3 corresponding to the relative RE offset is {0, 6, 3, 9, 1, 7, 4, 10, 2, 8, 5, 11} as shown in FIG. 25, the part filled with dots is the RE of the positioning reference signal resource; the configuration 4 corresponding to the relative RE offset is {0, 3, 6, 9, 1, 4, 7, 10, 2, 5, 8, 11} as shown in FIG. 26, the part filled with dots is the RE of the positioning reference signal resource; the configuration 5 corresponding to the relative RE offset is {0, 2, 4, 6, 8, 10, 1, 3, 5, 7, 9, 11} as shown in FIG. 27, the part filled with dots is the RE of the positioning reference signal resource; the configuration 6 corresponding to the relative RE offset is {0, 6, 2, 8, 4, 10, 1, 7, 3, 9, 5, 11} as shown in FIG. 28, the part filled with dots is the RE of the positioning reference signal resource; the configuration 7 corresponding to the relative RE offset is {0, 4, 8, 2, 6, 10, 1, 5, 9, 3, 7, 11} as shown in FIG. 29, the part filled with dots is the RE of the positioning reference signal resource; the configuration 8 corresponding to the relative RE offset is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11} as shown in FIG. 30, the part filled with dots is the RE of the positioning reference signal resource; the configuration 9 corresponding to the relative RE offset is {0, 2, 4, 6, 8, 10} as shown in FIG. 31, the part filled with dots is the RE of the positioning reference signal resource; the configuration 10 corresponding to the relative RE offset is {0, 4, 8, 2, 6, 10} as shown in FIG. 32, the part filled with dots is the RE of the positioning reference signal resource; the configuration 11 corresponding to the relative RE offset is {0, 6, 2, 8, 4, 10} as shown in FIG. 33, the part filled with dots is the RE of the positioning reference signal resource; the configuration 12 corresponding to the relative RE offset is {0, 3, 6, 9} as shown in FIG. 34, the part filled with dots is the RE of the positioning reference signal resource; the configuration 13 corresponding to the relative RE offset is {0, 6, 3, 9} as shown in FIG. 35, the part filled with dots is the RE of the positioning reference signal resource.The configuration 14 corresponding to the relative RE offset is {0, 4, 8} as shown in FIG. 36, and the part filled with dots is the RE of the positioning reference signal resource; the configuration 15 corresponding to the relative RE offset is {0, 6} as shown in FIG. 37, and the part filled with dots is the RE of the positioning reference signal resource.

[0432] As shown in FIG. 8, the terminal 300 of the embodiment of the present disclosure includes a mapping device of a positioning reference signal, which can implement the mapping method of the positioning reference signal in the above embodiment and achieve the same effect. The terminal 300 specifically includes the following functional modules:

[0433] The acquisition module 310 is configured to acquire mapping information of the positioning reference signal, the mapping information indicating relative resource element offsets of at least part of symbols in a positioning reference signal resource.

[0434] The determination module 320 is configured to determine, according to the mapping information, the relative resource element offset of each symbol in the positioning reference signal resource.

[0435] In the embodiment, the terminal acquires the mapping information of the positioning reference signal, the mapping information indicating the relative resource element offsets of at least part of the symbols in the positioning reference signal resource, and determines the relative resource element offset of each symbol in the positioning reference signal resource according to the mapping information. In this way, the terminal can determine the resource element position of the positioning reference signal according to the relative resource element offset of each symbol, and transmit the positioning reference signal through the resource element position.

[0436] The positioning reference signal can also be referred to as a positioning reference signal resource.

[0437] Optionally, the apparatus further includes:

[0438] The processing module is configured to determine the resource element position of the positioning reference signal according to the relative resource element offset of each symbol, and transmit the positioning reference signal through the resource element position.

[0439] Optionally, the mapping information is used to indicate configuration information of a group of relative resource element offsets in a table, and the acquisition module 310 is configured to acquire a table corresponding to the comb structure of the positioning reference signal, the table containing configuration information of at least one group of relative resource element offsets.

[0440] Optionally, the acquisition module 310 is further configured to acquire indication information sent by a network side device, the indication information being used to indicate that the terminal uses the configuration information of one group of relative resource element offsets in the table as the mapping information of the positioning reference signal.

[0441] Optionally, one group of the configuration information contains a number of values respectively indicating relative resource element offsets of the first a number of values respectively indicating relative resource element offsets of the first

[0442] Optionally, the value of the number of values is not greater than the number of symbols of the positioning reference signal resource

[0443] Optionally, if the value of the number of values is less than the number of symbols of the positioning reference signal resource the relative resource element offset of the l'th symbol of the positioning reference signal resource to the first the relative resource element offset of the l'th symbol of the positioning reference signal resource to the first the relative resource element offset of the l'th symbol of the positioning reference signal resource to the first The 0th symbol represents a symbol where the positioning reference signal resource starts.

[0444] Optionally, the value of the number of values is equal to the comb structure size of the positioning reference signal resource.

[0445] Optionally, the obtaining the configuration information comprises at least one of the following manners:

[0446] receiving the configuration information sent by the network side device;

[0447] obtaining the pre-configured configuration information;

[0448] obtaining the configuration information defined by the protocol.

[0449] Among them, part of the configuration information can be sent by the network side device, part of the configuration information can be pre-configured, or part of the configuration information can be defined by the protocol; all the configuration information can be sent by the network side device; all the configuration information can be pre-configured; or all the configuration information can be defined by the protocol.

[0450] Optionally, the mapping information is used to indicate a generation formula of the terminal for calculating the relative resource element offset of each symbol of the positioning reference signal, and the obtaining module 310 is configured to obtain at least one generation formula of the relative resource element offset corresponding to the comb structure of the positioning reference signal, and the generation formula is used to generate the relative resource element offset of each symbol of the positioning reference signal.

[0451] Optionally, the obtaining module 310 is further configured to obtain indication information sent by the network side device, and the indication information is used to indicate that the terminal generates the relative resource element offset of each symbol of the positioning reference signal by using one of the at least one generation formula.​​​

[0452] Optionally, the calculation parameter of the generation formula comprises at least one of:

[0453] a comb structure of the positioning reference signal resource;

[0454] a symbol index within the positioning reference signal resource;

[0455] a number of symbols of the positioning reference signal resource.

[0456] Optionally, the generation formula comprises:

[0457]

[0458] wherein l' represents a symbol index within the resource, K TC represents a comb structure size of the resource, RE relative_offset is a relative resource element offset of each symbol of the positioning reference signal.

[0459] Optionally, the generation formula comprises:

[0460]

[0461] wherein l' represents a symbol index within the resource, K TC represents a comb structure size of the resource, RE relative_offset is a relative resource element offset of each symbol of the positioning reference signal.

[0462] Optionally, a number of symbols of the positioning reference signal resource is not less than X, X is a period of the generation formula or a period of a sequence generated by the generation formula, X is equal to K TC or is one of factors of K TC , K TC represents a comb structure size of the positioning reference signal resource.

[0463] Optionally, the generation formula is acquired in at least one of the following ways:

[0464] receiving the generation formula sent by a network side device;

[0465] acquiring the generation formula preconfigured;

[0466] acquiring the generation formula defined by a protocol.

[0467] Among them, the network side device can send part of the formula, pre-configure part of the formula or protocol define part of the formula; the network side device can also send all the formulas; all the formulas can also be pre-configured; all the formulas can also be defined by the protocol.

[0468] Optionally, the relative resource element offset of the first symbol of the positioning reference signal resource is 0.

[0469] Optionally, the positioning reference signal is a downlink positioning reference signal, and the indication information is carried by long term evolution positioning protocol (LPP) signaling sent by the network side device.

[0470] Optionally, the comb structure size supported by the downlink positioning reference signal includes at least one of 2, 4, 6, 8 and 12.

[0471] Optionally, the positioning reference signal is an uplink positioning reference signal, and the indication information is carried by radio resource control (RRC) signaling or LPP signaling sent by the network side device.

[0472] Optionally, the comb structure size supported by the uplink positioning reference signal includes at least one of 2, 4 and 8.

[0473] To better achieve the above purpose, further, Fig. 39 is a hardware structure schematic diagram of a terminal for implementing various embodiments of the present disclosure. The terminal 40 includes but is not limited to: a radio frequency unit 41, a network module 42, an audio output unit 43, an input unit 44, a sensor 45, a display unit 46, a user input unit 47, an interface unit 48, a memory 49, a processor 410, and a power supply 411, and the like. Those skilled in the art can understand that the terminal structure shown in Fig. 39 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than the illustration, or combine certain components, or different component arrangements. In the embodiments of the present disclosure, the terminal includes but is not limited to a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, and a pedometer, etc.

[0474] Among them, the processor 410 is configured to acquire mapping information of the positioning reference signal, the mapping information indicating relative resource element offsets of at least part of symbols in the positioning reference signal resource; and determine the relative resource element offset of each symbol in the positioning reference signal resource according to the mapping information.

[0475] It should be understood that in the embodiments of the present disclosure, the radio frequency unit 41 can be used for receiving and sending signals in the process of transmitting information or calls. Specifically, after receiving the downlink data from the base station, the radio frequency unit 41 processes the data for the processor 410. In addition, the radio frequency unit 41 sends the uplink data to the base station. Generally, the radio frequency unit 41 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 41 can also communicate with the network and other devices through a wireless communication system.

[0476] The terminal provides the user with wireless broadband Internet access through the network module 42, such as helping the user to send and receive emails, browse web pages, and access streaming media.

[0477] The audio output unit 43 can convert audio data received by the radio frequency unit 41 or the network module 42 or stored in the memory 49 into an audio signal and output as a sound. Moreover, the audio output unit 43 can also provide audio output related to a specific function performed by the terminal 40 (for example, a call signal receiving sound, a message receiving sound, and the like). The audio output unit 43 includes a speaker, a buzzer, and a receiver, and the like.

[0478] The input unit 44 is used to receive audio or video signals. The input unit 44 can include a graphics processor (GPU) 441 and a microphone 442. The graphics processor 441 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The processed image frame can be displayed on the display unit 46. The image frame processed by the graphics processor 441 can be stored in the memory 49 (or other storage medium) or transmitted via the radio frequency unit 41 or the network module 42. The microphone 442 can receive sound and can process such sound into audio data. The processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 41 in the case of a telephone call mode.

[0479] The terminal 40 also includes at least one sensor 45, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, where the ambient light sensor can adjust the brightness of the display panel 461 according to the brightness of ambient light, and the proximity sensor can turn off the display panel 461 and / or the backlight when the terminal 40 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), and when at rest, can detect the magnitude and direction of gravity, and can be used to identify the terminal posture (such as landscape / portrait screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, knock), and the like. The sensor 45 can also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and the like, which will not be described here.

[0480] The display unit 46 is used to display information input by the user or information provided to the user. The display unit 46 can include a display panel 461, which can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), and the like.

[0481] The user input unit 47 can be used to receive input digital or character information, and to generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 47 includes a touch panel 471 and other input devices 472. The touch panel 471, also known as a touch screen, can collect user touch operations (such as user operations on or near the touch panel 471 using a finger, a stylus, or any suitable object or accessory) on or near it. The touch panel 471 can include two parts, a touch detection device and a touch controller. The touch detection device detects the user's touch position and detects the signals generated by the touch operation, and transmits the signals to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch coordinates, and sends it to the processor 410, receives commands from the processor 410 and executes them. In addition, the touch panel 471 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 471, the user input unit 47 can also include other input devices 472. Specifically, the other input devices 472 can include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, on / off buttons, etc.), trackballs, mice, joysticks, and the like, which will not be described here.

[0482] Further, the touch panel 471 can be overlaid on the display panel 461, and when the touch panel 471 detects a touch operation thereon or in the vicinity thereof, it transmits the touch event to the processor 410 to determine the type of the touch event, and then the processor 410 provides a corresponding visual output on the display panel 461 according to the type of the touch event. Although in FIG. 4 the touch panel 471 and the display panel 461 are implemented as two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 471 and the display panel 461 can be integrated to realize the input and output functions of the terminal, which is not limited here.

[0483] The interface unit 48 is an interface for connecting external devices with the terminal 40. For example, the external devices can include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input / output (I / O) port, a video I / O port, an earphone port, and the like. The interface unit 48 can be used to receive input (e.g., data information, power, and the like) from external devices and transmit the received input to one or more elements within the terminal 40 or can be used to transmit data between the terminal 40 and external devices.

[0484] The memory 49 can be used to store software programs and various data. The memory 49 can mainly include a storage program area and a storage data area, wherein the storage program area can store an operating system, application programs (such as a sound play function, an image play function, and the like) required by at least one function, and the like; and the storage data area can store data (such as audio data, a phone book, and the like) created according to the use of the mobile phone, and the like. In addition, the memory 49 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state memory device.

[0485] The processor 410 is the control center of the terminal, connects all parts of the terminal through various interfaces and lines, executes various functions of the terminal and processes data by running or executing software programs and / or modules stored in the memory 49 and calling data stored in the memory 49, and thus monitors the terminal as a whole. The processor 410 can include one or more processing units; preferably, the processor 410 can integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and application programs, and the like, and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 410.

[0486] The terminal 40 can further include a power supply 411, such as a battery, for powering the various components of the terminal 40. In preferred embodiments, the power supply 411 is preferably coupled to the processor 410, and is preferably configured to manage and deliver power to the various components of the terminal 40 via a power management system.

[0487] In addition, the terminal 40 includes some function modules which are not shown here and will not be described here.

[0488] In preferred embodiments, the disclosure further provides a terminal, including a processor 410, a memory 49, a computer program stored in the memory 49 and executable on the processor 410, which implements each process of the above-mentioned mapping method for positioning reference signal embodiments when executed by the processor 410, and can achieve the same technical effects. To avoid repetition, it will not be described here. Wherein, the terminal can be a wireless terminal or a wired terminal, the wireless terminal can be a device that provides voice and / or other service data connectivity to users, a handheld device with wireless connection function, or other processing devices connected to a wireless modem. The wireless terminal can communicate with one or more core networks through a radio access network (RAN), and the wireless terminal can be a mobile terminal, such as a mobile phone (or called "cellular" phone) and a computer with a mobile terminal, for example, it can be a portable, pocket, handheld, built-in computer or vehicle-mounted mobile device, which exchanges language and / or data with the radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), etc. The wireless terminal can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, a remote terminal, an access terminal, a user terminal, a user agent, a user device or user equipment, which is not limited here.

[0489] The embodiment of the present disclosure further provides a computer readable storage medium, and the computer readable storage medium stores a computer program. The computer program is executed by a processor to implement each process of the terminal-side positioning reference signal mapping method embodiment and achieve the same technical effects. To avoid repetition, details are not described herein. The computer readable storage medium includes a read-only memory (ROM), a random access memory (RAM), a magnetic disk, an optical disk, or the like.

[0490] As shown in FIG. 40, the network-side device 600 of the embodiment of the present disclosure includes a positioning reference signal mapping apparatus, which can implement the positioning reference signal mapping method in the above embodiment and achieve the same effects. The network-side device 600 specifically includes the following functional modules:

[0491] The sending module 610 is configured to send mapping information of the positioning reference signal to the terminal, and the mapping information indicates the relative resource element offset of at least part of the symbols in the positioning reference signal resource.

[0492] In the embodiment, the network-side device sends the mapping information of the positioning reference signal to the terminal, the mapping information indicates the relative resource element offset of at least part of the symbols in the positioning reference signal resource, and the terminal determines the relative resource element offset of each symbol in the positioning reference signal resource according to the mapping information. In this way, the terminal can determine the resource element position of the positioning reference signal according to the relative resource element offset of each symbol, and transmit the positioning reference signal through the resource element position.

[0493] Optionally, the sending module 610 is configured to send a table corresponding to the comb structure of the positioning reference signal to the terminal, and the table includes configuration information of at least one set of relative resource element offsets.

[0494] Optionally, the sending module 610 is further configured to send indication information to the terminal, and the indication information is used to indicate that the terminal uses the configuration information of one set of relative resource element offsets in the table as the mapping information of the positioning reference signal.

[0495] Optionally, one set of the configuration information includes values, which respectively indicate the relative resource element offsets of the first symbols in the positioning reference signal resource, and the relative resource element offset is an offset of the resource element offset of the first symbol.

[0496] Optionally, is not greater than the number of symbols in the positioning reference signal resource.

[0497] Optionally, if the value of the symbol number of the positioning reference signal resource the relative resource element offset of the l'th symbol of the positioning reference signal resource to the (l+1)'th symbol is the same, where l' is greater than or equal to 0 the 0th symbol represents the symbol at which the positioning reference signal resource starts.

[0498] Optionally, the value of the comb structure size of the positioning reference signal resource.

[0499] Optionally, the sending module 610 is configured to send, to the terminal, at least one generation formula of the relative resource element offset corresponding to the comb structure of the positioning reference signal, the generation formula being used to generate the relative resource element offset of each symbol of the positioning reference signal.

[0500] Optionally, the sending module 610 is further configured to send, to the terminal, indication information, the indication information being used to instruct the terminal to generate the relative resource element offset of each symbol of the positioning reference signal by using one of the at least one generation formula.

[0501] Optionally, the calculation parameter of the generation formula comprises at least one of:

[0502] the comb structure of the positioning reference signal resource;

[0503] the symbol index within the positioning reference signal resource;

[0504] the symbol number of the positioning reference signal resource.

[0505] Optionally, the generation formula comprises:

[0506]

[0507] wherein l' represents the symbol index within the resource, K TC represents the comb structure size of the resource, and RE relative_offset is the relative resource element offset of each symbol of the positioning reference signal.

[0508] Optionally, the generation formula comprises:

[0509]

[0510] wherein l' represents the symbol index within the resource, K TC represents the comb structure size of the resource, and RE relative_offset is the relative resource element offset of each symbol of the positioning reference signal.​

[0511] Optionally, the number of symbols of the positioning reference signal resource is not less than X, X is a period of the generation formula or a period of a sequence generated by the generation formula, X is equal to K TC or is one of factors of K TC K represents a comb structure size of the positioning reference signal resource. TC

[0512] Optionally, a relative resource element offset of a first symbol of the positioning reference signal resource is 0.

[0513] Optionally, the positioning reference signal is a downlink positioning reference signal, and the indication information is carried by long term evolution positioning protocol (LPP) signaling sent by the network side device.

[0514] Optionally, the comb structure size supported by the downlink positioning reference signal includes at least one of 2, 4, 6, 8 and 12.

[0515] Optionally, the positioning reference signal is an uplink positioning reference signal, and the indication information is carried by radio resource control (RRC) signaling or LPP signaling sent by the network side device.

[0516] Optionally, the comb structure size supported by the uplink positioning reference signal includes at least one of 2, 4 and 8.

[0517] It should be understood that the division of each module of the network side device and the terminal above is only a logical function division, and all or part of them can be integrated into one physical entity, or can be physically separated. These modules can all be implemented in the form of software called by a processing element; they can all be implemented in the form of hardware; or some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. For example, the determination module can be a separately established processing element, or can be integrated into a chip of the above device, and in addition, it can be stored in the form of program code in the memory of the above device, and the function of the above determination module can be called and executed by a processing element of the above device. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together, or can be independently implemented. The processing element mentioned here can be an integrated circuit with signal processing capability. In the implementation process, each step of the above method or each module can be completed by integrated logic circuit of hardware or instruction in the form of software in the processing element.

[0518] ​For example, the above modules can be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), or one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, when a certain module above is implemented in the form of a processing element scheduling code, the processing element can be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of invoking code. For another example, the modules can be integrated together to implement a system-on-a-chip (SOC).

[0519] To better achieve the above purpose, the embodiments of the present disclosure further provide a network side device, which comprises a processor, a memory and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps in the mapping method of the positioning reference signal are implemented, and the same technical effects can be achieved. To avoid repetition, details are not described here.

[0520] The embodiments of the present disclosure further provide a computer readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the mapping method of the positioning reference signal applied to the network side device are implemented, and the same technical effects can be achieved. To avoid repetition, details are not described here.

[0521] Specifically, the embodiments of the present disclosure further provide a network side device. As shown in FIG. 41, the network side device 700 comprises an antenna 71, a radio frequency device 72, and a baseband device 73. The antenna 71 is connected to the radio frequency device 72. In the uplink direction, the radio frequency device 72 receives information through the antenna 71 and sends the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes the information to be sent and sends it to the radio frequency device 72. The radio frequency device 72 processes the received information and sends it out through the antenna 71.

[0522] The above frequency band processing device can be located in the baseband device 73. The method performed by the network side device in the above embodiments can be implemented in the baseband device 73, which comprises a processor 74 and a memory 75.

[0523] The baseband device 73 may, for example, include at least one baseband board on which a plurality of chips are disposed, as shown in FIG. 41, one of which may, for example, be a processor 74 connected to a memory 75 to invoke programs in the memory 75 to perform the network-side device operations shown in the above method embodiments.

[0524] The baseband device 73 may, for example, include a network interface 76 for interacting information with the radio frequency device 72, which may, for example, be a common public radio interface (CPRI).

[0525] The processor herein may be one processor or a collective term for a plurality of processing elements. For example, the processor may be a CPU or an ASIC, or one or more integrated circuits configured to implement the method performed by the network-side device described above, such as one or more microprocessors, DSPs, or one or more field programmable gate arrays (FPGAs).

[0526] The memory 75 may be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. 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) used as an external cache. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and direct Rambus RAM (DRRAM). The memory 75 described herein is intended to include, without being limited to, these and any other suitable types of memory.

[0527] Specifically, the network side device of the embodiment of the present disclosure further comprises a computer program stored on the memory 75 and executable on the processor 74, and the processor 74 invokes the computer program in the memory 75 to execute the method performed by each module shown in FIG. 40.

[0528] Specifically, the computer program is used to send the mapping information of the positioning reference signal to the terminal when invoked by the processor 74, and the mapping information indicates the relative resource particle offset of at least part of the symbols in the positioning reference signal resource.

[0529] Those skilled in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present disclosure.

[0530] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0531] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division, and there can be another division manner in actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0532] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e. they can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0533] In addition, each functional unit in each embodiment of the present disclosure can be integrated into one processing unit, or each unit can exist physically, or two or more units can be integrated into one unit.

[0534] If the functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present disclosure essentially or the parts that contribute to the related art or the parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network side device, etc.) to execute all or part of the steps of the method described in the various embodiments of the present disclosure. The aforementioned storage medium includes: a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk or an optical disk, and various program code storage media.

[0535] In addition, it should be noted that in the device and method of the present disclosure, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present disclosure. Moreover, the steps of performing the above series of processes can naturally be executed in time sequence according to the order of description, but do not necessarily have to be executed in time sequence, and some steps can be executed in parallel or independently of each other. It can be understood by those skilled in the art that all or any steps or components of the method and device of the present disclosure can be implemented in hardware, firmware, software or a combination thereof in any computing device (including a processor, a storage medium, etc.) or a network of computing devices, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present disclosure.

[0536] Therefore, the purpose of the present disclosure can also be achieved by running a program or a set of programs on any computing device. The computing device can be a commonly known general-purpose device. Therefore, the purpose of the present disclosure can also be achieved only by providing a program product containing program code for implementing the method or device. That is, such a program product also constitutes the present disclosure, and the storage medium storing such a program product also constitutes the present disclosure. Obviously, the storage medium can be any commonly known storage medium or any storage medium developed in the future. It should be noted that in the device and method of the present disclosure, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present disclosure. Moreover, the steps of performing the above series of processes can naturally be executed in time sequence according to the order of description, but do not necessarily have to be executed in time sequence. Some steps can be executed in parallel or independently of each other.

[0537] The above is the preferred embodiment of the present disclosure, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present disclosure. These improvements and refinements are also within the scope of protection of the present disclosure.

Claims

1. A method for mapping positioning reference signals, applied to a terminal, includes: Obtaining mapping information of the positioning reference signals, where the mapping information indicates relative resource particle offsets of at least some symbols in the positioning reference signal resources; Determining, according to the mapping information, relative resource particle offsets of each symbol in the positioning reference signal resources.

2. The mapping method of the positioning reference signal according to claim 1, wherein, After determining, according to the mapping information, relative resource particle offsets of each symbol in the positioning reference signal resources, the method further includes: Determining, according to the relative resource particle offsets of each symbol, resource particle positions of the positioning reference signals; Transmitting the positioning reference signals through the resource particle positions.

3. The mapping method of the positioning reference signal according to claim 1, wherein, The obtaining mapping information of the positioning reference signals includes: Obtaining a table corresponding to the comb structure of the positioning reference signals, where the table contains configuration information of at least one set of relative resource particle offsets.

4. The mapping method of the positioning reference signal according to claim 3, wherein, The obtaining mapping information of the positioning reference signals further includes: Obtaining indication information sent by a network side device, where the indication information is used to indicate that the terminal uses configuration information of one set of relative resource particle offsets in the table as the mapping information of the positioning reference signals.

5. The mapping method of the positioning reference signal according to claim 3, wherein, One set of the configuration information includes values, respectively indicating the relative resource particle offsets of the first symbols in the positioning reference signal resource, and the relative resource particle offset is the offset relative to the resource particle offset of the first symbol.

6. The mapping method of the positioning reference signal according to claim 5, wherein, The value of is not greater than the number of symbols of the positioning reference signal resource 7. The mapping method of the positioning reference signal according to claim 5, wherein If the value of is less than the number of symbols of the positioning reference signal resource the relative resource particle offset between the l'-th symbol and the -th symbol of the positioning reference signal resource is the same, where l' is greater than or equal to The 0-th symbol represents the symbol at which the positioning reference signal resource starts.

8. The mapping method of the positioning reference signal according to claim 5, wherein, The value of is equal to the comb structure size of the positioning reference signal resource.

9. The mapping method of the positioning reference signal according to claim 3, wherein, Obtaining the configuration information includes at least one of the following methods: Receiving the configuration information sent by the network side device; Obtaining the pre-configured configuration information; Obtaining the configuration information defined by the protocol.

10. The mapping method of the positioning reference signal according to claim 1, wherein, The obtaining mapping information of the positioning reference signals includes: Obtaining at least one generation formula of relative resource particle offsets corresponding to the comb structure of the positioning reference signals, where the generation formula is used to generate relative resource particle offsets of each symbol of the positioning reference signals.

11. The mapping method of the positioning reference signal according to claim 10, wherein, The obtaining mapping information of the positioning reference signals further includes: Obtaining indication information sent by a network side device, where the indication information is used to indicate that the terminal uses one of the at least one generation formula to generate relative resource particle offsets of each symbol of the positioning reference signals.

12. The mapping method of the positioning reference signal according to claim 10, wherein, Calculation parameters of the generation formula include at least one of the following: Comb structure of the positioning reference signal resources; Symbol index within the positioning reference signal resources; Number of symbols of the positioning reference signal resources.

13. The mapping method of the positioning reference signal according to claim 10 or 12, wherein, The generation formula includes: where l′ represents the symbol index within the resource, K TC represents the comb structure size of the resource, RE relative_offset is the relative resource particle offset for each symbol of the positioning reference signal.

14. The mapping method of the positioning reference signal according to claim 10 or 12, wherein, The generation formula includes: where l′ represents the symbol index within the resource, K TC Indicates the comb structure size of the resource, RE relative_offset Is the relative resource particle offset for each symbol of the positioning reference signal.

15. The mapping method of the positioning reference signal according to claim 10, wherein, Number of symbols of the positioning reference signal resource Not less than X, where X is the period of the generation formula or the period of the sequence generated by the generation formula, and X is equal to K TC or is a factor of K TC , and K TC represents the comb structure size of the positioning reference signal resource.

16. The mapping method of the positioning reference signal according to claim 10, wherein, Obtaining the generation formula includes at least one of the following methods: Receiving the generation formula sent by the network side device; Obtaining the pre-configured generation formula; Obtaining the generation formula defined by the protocol.

17. The mapping method of the positioning reference signal according to any one of claims 1 to 16, wherein, The relative resource particle offset of the first symbol of the positioning reference signal resources is 0.

18. The mapping method of the positioning reference signal according to claim 3 or 10, wherein The positioning reference signal is a downlink positioning reference signal, and the indication information is carried by a Long-Term Evolution Positioning Protocol (LPP) signaling sent by the network side device.

19. According to the method for mapping positioning reference signals as claimed in claim 18, wherein, The sizes of comb structures supported by the downlink positioning reference signals include at least one of 2, 4, 6, 8, and 12.

20. The mapping method of the positioning reference signal according to claim 3 or 10, wherein The positioning reference signal is an uplink positioning reference signal, and the indication information is carried by a Radio Resource Control (RRC) signaling or an LPP signaling sent by the network side device.

21. According to the method for mapping positioning reference signals as claimed in claim 20, wherein, The comb structure sizes supported by the uplink positioning reference signal include at least one of 2, 4, and 8.

22. A method for mapping a positioning reference signal, applied to a network-side device, includes: Sending mapping information of the positioning reference signal to a terminal, where the mapping information indicates the relative resource particle offsets of at least some symbols in the positioning reference signal resource.

23. The mapping method of the positioning reference signal according to claim 22, wherein, The sending mapping information of the positioning reference signal to the terminal includes: Sending a table corresponding to the comb structure of the positioning reference signal to the terminal, where the table contains configuration information of at least one set of relative resource particle offsets.

24. The mapping method of the positioning reference signal according to claim 23, wherein, The sending mapping information of the positioning reference signal to the terminal further includes: Sending indication information to the terminal, where the indication information is used to indicate that the terminal uses the configuration information of one set of relative resource particle offsets in the table as the mapping information of the positioning reference signal.

25. The mapping method of the positioning reference signal according to claim 23, wherein, One set of the configuration information includes values respectively indicating relative resource particle offsets of the first symbols in the positioning reference signal resource, where the relative resource particle offset is an offset relative to the resource particle offset of the first symbol.

26. The mapping method of the positioning reference signal according to claim 25, wherein, The value of is not greater than the number of symbols of the positioning reference signal resource 27. The mapping method of the positioning reference signal according to claim 25, wherein, like The value is less than the number of symbols of the positioning reference signal resource The l′th symbol of the positioning reference signal resource is The relative resource particle offset of the symbols is the same, where l′ is greater than or equal to The 0th symbol indicates the symbol where the positioning reference signal resource starts.

28. The mapping method of the positioning reference signal according to claim 25, wherein, The value of 29. The mapping method of the positioning reference signal according to claim 22, wherein, The sending mapping information of the positioning reference signal to the terminal includes: Sending at least one generation formula of the relative resource particle offsets corresponding to the comb structure of the positioning reference signal to the terminal, where the generation formula is used to generate the relative resource particle offsets of each symbol of the positioning reference signal.

30. The mapping method of the positioning reference signal according to claim 29, wherein, The sending mapping information of the positioning reference signal to the terminal further includes: Sending indication information to the terminal, where the indication information is used to indicate that the terminal uses one of the at least one generation formula to generate the relative resource particle offsets of each symbol of the positioning reference signal.

31. The mapping method of the positioning reference signal according to claim 29, wherein, The calculation parameters of the generation formula include at least one of the following: The comb structure of the positioning reference signal resource; The symbol index within the positioning reference signal resource; The number of symbols of the positioning reference signal resource.

32. The mapping method of the positioning reference signal according to claim 29 or 31, wherein, The generation formula includes: where l′ represents the symbol index within the resource, K TC represents the comb structure size of the resource, and RE relative_offset is the relative resource particle offset of each symbol of the positioning reference signal.

33. The mapping method of the positioning reference signal according to claim 29 or 31, wherein, The generation formula includes: where l′ represents the symbol index within the resource, K TC represents the comb structure size of the resource, RE relative_offset is the relative resource particle offset of each symbol of the positioning reference signal.

34. The mapping method of the positioning reference signal according to claim 29, wherein, Number of symbols of the positioning reference signal resource is not less than X, where X is the period of the generation formula or the period of the sequence generated by the generation formula, and X is equal to K TC or is a factor of K TC where K TC represents the size of the comb structure of the positioning reference signal resource.

35. The mapping method of the positioning reference signal according to any one of claims 22 to 34, wherein, The relative resource particle offset of the first symbol of the positioning reference signal resource is 0.

36. The mapping method of the positioning reference signal according to claim 23 or 29, wherein, The positioning reference signal is a downlink positioning reference signal, and the indication information is carried by a Long-Term Evolution Positioning Protocol (LPP) signaling sent by the network-side device.

37. According to the method for mapping a positioning reference signal described in claim 36, wherein The comb structure sizes supported by the downlink positioning reference signal include at least one of 2, 4, 6, 8, and 12.

38. The mapping method of the positioning reference signal according to claim 23 or 29, wherein, The positioning reference signal is an uplink positioning reference signal, and the indication information is carried by a Radio Resource Control (RRC) signaling or LPP signaling sent by the network-side device.

39. According to the method for mapping a positioning reference signal described in claim 38, wherein The comb structure sizes supported by the uplink positioning reference signal include at least one of 2, 4, and 8.

40. A device for mapping a positioning reference signal, applied to a terminal, includes: An acquisition module, configured to acquire mapping information of the positioning reference signal, where the mapping information indicates the relative resource particle offsets of at least some symbols in the positioning reference signal resource; A determination module, configured to determine the relative resource particle offsets of each symbol in the positioning reference signal resource according to the mapping information.

41. A device for mapping a positioning reference signal, applied to a network-side device, includes: A transmitting module, configured to transmit mapping information of positioning reference signals to a terminal, where the mapping information indicates relative resource particle offsets of at least some symbols in a positioning reference signal resource.

42. A communication device, wherein, The communication device includes a processor, a memory, and a computer program stored on the memory and running on the processor. When the processor executes the computer program, the steps of the positioning reference signal mapping method according to any one of claims 1 to 39 are implemented.

43. A computer-readable storage medium, wherein, A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, the steps of the positioning reference signal mapping method according to any one of claims 1 to 39 are implemented.