Method and apparatus for downlink positioning reference signal configuration

Abstract

Methods and systems for downlink (DL) positioning reference signal (PRS) configuration. The method comprises: a terminal device receiving information for configuring one or more DL PRS resource sets, and performing configuration according to the received information for configuring one or more DL PRS resource sets. Each DL PRS resource set includes one or more DL PRS resources and corresponds to a spatial transmission filter. The spatial transmission filter corresponds to the first value.

Description

This application is a divisional application of the PCT international patent application PCT / IB2022 / 053931 with an application date of April 28, 2022, which entered the Chinese national phase and has the Chinese patent application number 202280012178.0 and the invention name “Method and device for downlink positioning reference signal configuration”. CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of U.S. Provisional Patent Application Serial No. 63 / 180,966, filed April 28, 2021, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present application relates to the field of communications, and more specifically, to wireless communication systems, methods, and devices. Background Art

[0003] The rapid development of computing technology has created a greater demand for data communications. The growing demand, in turn, has promoted the further development of communication technologies, including beamforming or beamforming. New radio (NR) or fifth generation (5G) communication systems support positioning technology. In 3GPP NR, a downlink positioning reference signal (PRS) is introduced to support downlink positioning measurements, and a sounding reference signal (SRS) for positioning is introduced to support uplink positioning measurements.

[0004] The NR-based positioning solution involves user equipment (UE), a transmission / reception point (TRP), and a location server. The UE measures the downlink (DL) PRS resources sent from multiple different TRPs or sends SRS resources for "positioning". One shortcoming of the current DL PRS resource configuration and transmission includes that some configurations of higher layer parameters of the DL PRS period and consecutive instances of the DL PRS resource set exceed one super system frame number (SFN). In this case, the configured PRS resource muting operation cannot be performed. Therefore, the measurements on the DL PRS resources are negatively affected, and the overall performance of positioning is impaired. Therefore, it is advantageous to use improved systems and methods to address the aforementioned needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] To more clearly describe the technical solutions in the implementation of the present disclosure, the following briefly describes the accompanying drawings. The accompanying drawings only illustrate some aspects or embodiments of the present disclosure, and those skilled in the art can derive other drawings from these drawings without creative effort.

[0006] Figure 1 is a schematic diagram of a wireless communication system according to one or more implementations of the present disclosure.

[0007] Figure 2 is a schematic block diagram of a terminal device according to one or more implementations of the present disclosure.

[0008] Figure 3 is a flow chart of a method according to one or more implementations of the present disclosure. DETAILED DESCRIPTION

[0009] The present disclosure relates to systems and methods for downlink (DL) positioning reference signal (PRS) configuration. More specifically, the present systems and methods can support TRP of DL PRS resources with muting patterns. DL PRS resources can exceed the boundaries of a super system frame number (SFN).

[0010] In some embodiments, the system provides a first value as a threshold for a DL PRS resource set. More specifically, the product of the configuration period of the DL PRS resource set and the number of consecutive instances of the configuration cannot exceed the first value. In some embodiments, the first value can be a function of the number of PRS resources used. With this configuration, the present disclosure provides systems and methods for supporting TRP of DL PRS resources with their muting patterns, which may exceed the boundaries of a super SFN.

[0011] Figure 1 FIG is a schematic diagram of a wireless communication system 100 according to one or more implementations of the present disclosure. Figure 1As shown, the wireless communication system 100 can be a multi-TRP transmission system including one or more TRPs (e.g., TRP 103 and TRP 105), and one or more TRPs can constitute one or more network nodes / devices (or base stations). Examples of network nodes / devices include base transceiver stations (BTS), NodeBs (NBs), evolved NodeBs (eNBs or eNodeBs), next-generation NodeBs (gNBs or gNode Bs), wireless fidelity (Wi-Fi) access points (APs), etc. In some embodiments, network nodes / devices may include relay stations, access points, vehicle-mounted devices, wearable devices, etc. The network node may include a wireless connection device for a communication network, which may be, for example, a Global System for Mobile Communications (GSM) network, a Code Division Multiple Access (CDMA) network, a Wideband CDMA (WCDMA) network, an LTE network, a Cloud Radio Access Network (CRAN), a network based on the Institute of Electrical and Electronics Engineers (IEEE) 802.11 (e.g., a Wi-Fi network), an Internet of Things (IoT) network, a device-to-device (D2D) network, a next-generation network (e.g., a 5G network), a future evolved Public Land Mobile Network (PLMN), etc. A 5G system or network may be referred to as an NR system or network.

[0012] exist Figure 1In the embodiment of the present invention, the wireless communication system 100 further includes a terminal device 101. The terminal device 101 may be a terminal user device configured to facilitate wireless communication. The terminal device 101 may be configured to wirelessly connect to a network node / device according to one or more corresponding communication protocols / standards (e.g., via a wireless channel). The terminal device 101 may be mobile or fixed. The terminal device 101 may be a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. Examples of the terminal device 101 include a modem, a cellular phone, a smartphone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device or another processing device connected to a wireless modem, an in-vehicle device, a wearable device, an Internet of Things (IoT) device, a device used in a 5G network, a device used in a public land mobile network, and the like. For illustration purposes, Figure 1 Only two network nodes / devices (ie, TRP 103, TRP 105) and one terminal device 101 are shown in the wireless communication system 100. However, in some examples, the wireless communication system 100 may include additional network nodes / devices and / or terminal devices.

[0013] The terminal device 101 may be configured with one or more DL PRS resource set configurations (e.g., from either TRP 103 or TRP 105). Each DL PRS resource set consists of "K" (K ≥ 1) DL PRS resources, where each DL PRS resource has an associated spatial transmission filter. For each DL PRS resource set, the terminal device 101 may have one or more of the following parameters:

[0014] [1] DL PRS resource period. In some embodiments, the period of DL PRS resources “T PRS " can be a value in time slots. In some embodiments, the period "T PRS " is the value in milliseconds.

[0015] [2] DL PRS muting pattern, which defines the time positions at which DL PRS resources are not expected to be transmitted for a DL PRS resource set. In some embodiments, in a method of muting DL PRS resources, each bit in the first bitmap of the muting pattern corresponds to an “N” value in the DL PRS resource set. P " consecutive instances (wherein for the instances indicated as muted, all DL PRS resources in the resource set are muted). In some embodiments, "N P " can be a configurable value. For example, the length of the first bitmap can be 2, 4, 6, 8, 16, or 32 bits.

[0016] To support proper operation of muting on DL PRS resource sets, the wireless communication system 100 may implement one or more of the following configurations.

[0017] (1) For the DL PRS resource set, the period of DL PRS resources “T PRS ” and the number of consecutive instances of DL PRS resource sets “N p " is set to be no greater than the first value. In other words, T PRS and N P The product cannot exceed the first value.

[0018] (2) For DL ​​PRS resource set, “T PRS / 2 μ ” and “N P " cannot exceed a preset value. In some embodiments, the parameter "μ" may be different for different DL PRS intervals. For example, for "dl-PRS-SubcarrierSpacing=15, 30, 60 and 120 kHz", the parameter "μ" may be 0, 1, 2 and 3 respectively.

[0019] (3) For DL ​​PRS resource set, “T PRS ” and “N P " cannot exceed the value "2 μ ×Q, “Q” may be a preset value. For “dl-PRS-SubcarrierSpacing=15, 30, 60, and 120 kHz”, the parameter “μ” may be 0, 1, 2, and 3, respectively.

[0020] (4) For DL ​​PRS resource set, “T PRS ” and “N P " cannot exceed a value R. "R" may be a function of the number of bits in the first bitmap of the silence pattern.

[0021] In some embodiments, the terminal device 101 may be configured with one or more DL PRS resource set configurations as indicated by higher layer parameters "NR-DL-PRS-ResourceSef" and "NR-DL-PRS-Resource" as defined in clause 6.4.3 of the "17, TS 37.355" standard.

[0022] In some embodiments, each DL PRS resource set may consist of "K" (K ≥ 1) DL PRS resources, where each DL PRS resource has an associated spatial transmission filter. The terminal device 101 may be configured with one or more DL PRS positioning frequency layer configurations as indicated by the higher layer parameter "NR-DL-PRS-PositioningFrequencyLayer".

[0023] For DL ​​PRS resources configured in a frequency layer, the terminal device 101 may have a subcarrier spacing configuration for the DL PRS resources. More specifically, the higher-layer parameter "dl-PRS-SubcarrierSpacing" may be used to define the subcarrier spacing of the DL PRS resources. All DL PRS resources and DL PRS resource sets in the same DL PRS positioning frequency layer may have the same "dl-PRS-SubcarrierSpacing" value.

[0024] The DL PRS positioning frequency layer can be defined as a collection of multiple DL PRS resource sets with common parameters configured by "NR-DL-PRS PositioningFrequencyLayer". The DL PRS resource set can be configured by "NR-DL-PRS-ResourceSet", which consists of one or more DL PRS resources and can be defined by the following parameters:

[0025] [1] “dl-PRS-Periodicity-and-ResourceSetSlotOffset” can define the DL PRS resource period and use the value In the aforementioned embodiment, for dl-PRS-SubcarrierSpacing = 15, 30, 60, and 120 kHz, μ is equal to 0, 1, 2, and 3, respectively. For "SFN0 slot 0", the DL PRS resource set has a time slot offset. All DL PRS resources in a DL PRS resource set are configured with the same DL PRS resource period.

[0026] [2] "dl-PRS-MutingOption1" and "dl-PRS-MutingOption2" can define the time positions at which DL PRS resources are not expected to be transmitted for a DL PRS resource set. If "dl-PRS-MutingOption1" is configured, each bit in the bitmap of "dl-PRS-MutingOption1" corresponds to a configurable number provided by the higher layer parameter "dl-prs-MutingBitRepetitionFactor" for consecutive instances of a DL PRS resource set, where for the instance indicated as muted, all DL PRS resources in the resource set are muted. The length of the bitmap can be {2, 4, 6, 8, 16, 32} bits.

[0027] If 'dl-PRS-MutingOption2' is configured, each bit in the bitmap of dl-PRS-MutingOption2 corresponds to a single repetition index for each DL PRS resource in each instance of 'nr-DL-PRS-ResourceSet', and the length of the bitmap is equal to the value of 'dl-PRS-ResourceRepetionFactor'.

[0028] "dl-PRS-MutingOption1" and "dl-PRS-MutingOption2" can be configured at the same time, in which case a logical "AND" operation is applied to the bitmap as described in clause 7.4.1.7.4 of the "4, TS 38.211" standard.

[0029] In some embodiments, the DL PRS resource period and the higher layer parameter "dl-prs-MutingBitRepetitionFactor" can be configured by implementing one or more of the following:

[0030] [1] In one example, The product of the higher layer parameter dl-prs-MutingBitRepetitionFactor cannot exceed "2 μ ×1280”, where μ is equal to 0, 1, 2, and 3 for dl-PRS-SubcarrierSpacing=15, 30, 60, and 120 kHz, respectively. dl-PRS-SubcarrierSpacing is the subcarrier spacing configured for DL ​​PRS resources.

[0031] [2] In another example, The product of the higher layer parameter dl-prs-MutingBitRepetitionFactor cannot exceed "2 μ ×B. The value “B” can be 10240, 5120, 2560, 1280, 640, 320, 160, 80, or 64.

[0032] [3] In another example, The product of μ and the higher layer parameter dl-prs-MutingBitRepetitionFactor shall not exceed 1280, where μ is equal to 0, 1, 2, and 3 for dl-PRS-SubcarrierSpacing = 15, 30, 60, and 120 kHz, respectively. The parameter "dl-PRS-SubcarrierSpacing" is the subcarrier spacing configured for the DL PRS resource.

[0033] [4] In another example, The product of this and the higher layer parameter dl-prs-MutingBitRepetitionFactor shall not exceed "C". The value "C" can be 10240, 5120, 2560, 1280, 640, 320, 160, 80, or 64.

[0034] In some embodiments, The product of the higher layer parameter dl-prs-MutingBitRepetitionFactor cannot exceed the value "E". The value E is determined based on the number of bits in the bitmap of dl-PRS-MutingOption1. For example, if the number of bits in the bitmap of dl-PRS-MutingOption1 is 2, then E = 2 μ ×5120.

[0035] If the number of bits in the bitmap of dl-PRS-MutingOption1 is 4, then E = 2 μ ×2560. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 6, then E=2 μ × 1280. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 8, then E = 2 μ × 1280. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 16, then E = 2 μ ×640. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 32, then E=2 μ ×320.

[0036] In the above example, for dl-PRS-SubcarrierSpacing=15, 30, 60 and 120 kHz, μ is equal to 0, 1, 2 and 3 respectively, and dl-PRS-SubcarrierSpacing is the subcarrier spacing configured for DL ​​PRS resources.

[0037] In some embodiments, The product of the bitmap parameter dl-PRS-MutingBitRepetitionFactor and the higher-layer parameter dl-PRS-MutingBitRepetitionFactor cannot exceed the value "E". The value E is determined based on the number of bits in the bitmap of dl-PRS-MutingOption1. For example, if the number of bits in the bitmap of dl-PRS-MutingOption1 is 2, then E = 5120. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 4, then E = 2560. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 6, then E = 1280. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 8, then E = 1280. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 16, then E = 640. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 32, then E = 320.

[0038] In the above example, for dl-PRS-SubcarrierSpacing=15, 30, 60 and 120 kHz, μ is equal to 0, 1, 2 and 3 respectively, and dl-PRS-SubcarrierSpacing is the subcarrier spacing configured for DL ​​PRS resources.

[0039] In some embodiments, the terminal device 101 does not expect The product of the higher layer parameter dl-prs-MutingBitRepetitionFactor exceeds 1280. In some embodiments, the terminal device 101 does not expect and the product of a higher layer parameter dl-prs-MutingBitRepetitionFactor exceeds "C" (example values ​​of C include 10240, 5120, 2560, 1280, 640, 320, 160, 80, and 64).

[0040] In some embodiments, the terminal device 101 does not expect The product of the higher layer parameter dl-prs-MutingBitRepetitionFactor exceeds the value “E.” The value of E is determined based on the number of bits in the bitmap of dl-PRS-MutingOption1.

[0041] For example, if the number of bits in the bitmap of dl-PRS-MutingOption1 is 2, then E = 2 μ ×5120. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 4, then E=2 μ ×2560. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 6, then E=2 μ × 1280. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 8, then E = 2 μ × 1280. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 16, then E = 2 μ ×640. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 32, then E=2 μ ×320.

[0042] In the above examples, μ is equal to 0, 1, 2, and 3 for dl-PRS-SubcarrierSpacing=15, 30, 60, and 120 kHz, respectively, and dl-PRS-SubcarrierSpacing is the subcarrier spacing configured for the DL PRS resource.

[0043] In some embodiments, the terminal device 101 does not expect The product of the higher layer parameter dl-prs-MutingBitRepetitionFactor exceeds the value “E.” The value of E is determined based on the number of bits in the bitmap of dl-PRS-MutingOption1.

[0044] For example, if the number of bits in the bitmap of dl-PRS-MutingOption1 is 2, E = 5120. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 4, E = 2560. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 6, E = 1280. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 8, E = 1280. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 16, E = 640. If the number of bits in the bitmap of dl-PRS-MutingOption1 is 32, E = 320.

[0045] In the above examples, μ is equal to 0, 1, 2, and 3 for dl-PRS-SubcarrierSpacing=15, 30, 60, and 120 kHz, respectively, and dl-PRS-SubcarrierSpacing is the subcarrier spacing configured for the DL PRS resource.

[0046] In some embodiments, the terminal device 101 does not expect The product of the higher layer parameter dl-prs-MutingBitRepetitionFactor exceeds 2 μ ×1280. For dl-PRS-SubcarrierSpacing=15, 30, 60 and 120 kHz, μ is equal to 0, 1, 2 and 3 respectively, and dl-PRS-SubcarrierSpacing is the subcarrier spacing configured for DL ​​PRS resources. In one example, the terminal device 101 does not expect The product of the higher layer parameter dl-prs-MutingBitRepetitionFactor exceeds 2 μ × B. The value of B can be 10240, 5120, 2560, 1280, 640, 320, 160, 80, and 64.

[0047] In some embodiments, DL PRS resources and DL PRS resource sets may be defined by enumerating multiple acceptable parameters and values. In some embodiments, restrictions on configuring DL PRS resources may also be described by listing multiple acceptable parameters and values ​​for various use cases.

[0048] Figure 2 is a schematic block diagram of a terminal device according to one or more implementations of the present disclosure. Figure 2 is a terminal device 200 (e.g., Figure 1Schematic block diagram of an example of a terminal device 101). Figure 2 As shown, the terminal device 200 includes a processing unit 210 (e.g., a DSP, a CPU, a GPU, etc.) and a memory 220. The processing unit 210 can be configured to implement instructions corresponding to the methods discussed herein and / or other aspects of the above implementations. The processing unit 210 can also be coupled to the memory 220.

[0049] It should be understood that the processor in the implementation of this technology can be an integrated circuit chip with signal processing capabilities. During implementation, the steps in the aforementioned method can be implemented using hardware integrated logic circuits in the processor or instructions in the form of software. The processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic devices, and discrete hardware components. The methods, steps, and logic block diagrams disclosed in the implementation of this technology can be implemented or realized. The general-purpose processor can be a microprocessor, or the processor can be any conventional processor. The steps in the methods disclosed in the implementation of this technology can be directly executed or completed by a decoding processor implemented in hardware, or by using a combination of hardware and software in the decoding processor. The software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other well-known storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps in the aforementioned method.

[0050] It is understood that the memory 220 in the implementation of this technology can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. The non-volatile memory can 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 can be a random-access memory (RAM) and used as an external cache. For purposes of example and non-limiting description, many forms of RAM may be used, such as static random-access memory (SRAM), dynamic random-access memory (DRAM), synchronous dynamic random-access memory (SDRAM), double data rate synchronous dynamic random-access memory (DOR SDRAM), enhanced synchronous dynamic random-access memory (ESDRAM), synchronous link dynamic random-access memory (SLDRAM), and direct Rambus random-access memory (DR RAM). It should be noted that the memory in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0051] Figure 33 is a flow chart of a method 300 according to one or more implementations of the present disclosure. The method 300 may be implemented by a wireless communication system (e.g., wireless communication system 100) including a terminal device (e.g., terminal device 101) and a network node / device or gNB (e.g., a TRP as described herein or other suitable network node / device). The method 300 is used for downlink positioning reference signal configuration.

[0052] At block 301, method 400 begins with a terminal device receiving information for configuring one or more DL PRS resource sets. In some embodiments, each DL PRS resource set includes one or more DL PRS resources. In some embodiments, each DL PRS resource set corresponds to a spatial transmission filter. The spatial transmission filter may correspond to a first value or a preset value.

[0053] In some embodiments, the received information for configuring one or more DL PRS resource sets comes from a network node. In some embodiments, the network node includes a transmission / reception point (TRP). In some embodiments, the network node may be a base station.

[0054] In some embodiments, the received information for configuring one or more DL PRS resource sets includes a DL PRS resource period for each DL PRS resource set in the one or more DL PRS resource sets. In some embodiments, the DL PRS resource period includes a value indicating a time slot. In some embodiments, the DL PRS resource period includes a value indicating a time in milliseconds.

[0055] In some embodiments, the received information for configuring one or more DL PRS resource sets includes a DL PRS muting pattern for each of the one or more DL PRS resource sets. The DL PRS muting pattern may indicate a time location at which one or more DL PRS resources are not expected to be transmitted for the one or more DL PRS resource sets.

[0056] In some embodiments, the DL PRS muting pattern corresponds to "N P " value indicating consecutive instances of one or more DL PRS resources set to be muted. The received information for configuring one or more DL PRS resource sets may also include a DL PRS resource period "T for each DL PRS resource set in the one or more DL PRS resource sets. PRS "DLPRS resource cycle" T PRS ” and “N P"The product of the values ​​may be set to be no greater than the first value.

[0057] In some embodiments, the first value may be "2 μ ×Q”, and “Q” can be a preset value. The parameter “μ” can be one of the following values: 0, 1, 2 and 3, each value corresponding to a different carrier spacing (for example, corresponding to “dl-PRS-SubcarrierSpacing=15, 30, 60 and 120 kHz” respectively).

[0058] In some embodiments, "T PRS / 2 μ ” and “N” for each DL PRS resource set P ” values ​​are set to be no greater than a preset value, and the parameter “μ” is one of the following values: 0, 1, 2, and 3, each value corresponding to a different carrier spacing (for example, corresponding to “dl-PRS-SubcarrierSpacing=15, 30, 60, and 120 kHz”, respectively).

[0059] In some embodiments, the first value is determined based on a function of the number of bits in the first bitmap of the DL PRS muting pattern.

[0060] At block 303 , the method 300 continues with the following operations: the terminal device performs configuration according to the received information for configuring one or more DLPRS resource sets.

[0061] The above detailed description of the examples of the disclosed technology is not intended to be exhaustive or to limit the disclosed technology to the precise form disclosed above. Although the specific examples of the disclosed technology are described above, as will be appreciated by those skilled in the relevant art, various equivalent modifications may be possible within the scope of the described technology. For example, when the processes or frames are presented in a given order, alternative implementations may perform the routine with steps in a different order, or adopt a system with frames, and some processes or frames may be deleted, moved, added, subdivided, combined and / or modified to provide alternative implementations or sub-combinations. Each of these processes or frames can be implemented in various different ways. In addition, although processes or frames are sometimes shown as being executed in series, these processes or frames may alternatively be executed or implemented in parallel, or may be executed at different times. In addition, any specific numbers mentioned in this disclosure are merely examples, and alternative implementations may adopt different values ​​or ranges.

[0062] In the detailed description, many specific details are set forth to provide a thorough understanding of the presently described technology. In other implementations, the technology introduced in this disclosure can be practiced without these specific details. In other cases, in order to avoid unnecessarily obscuring the present disclosure, well-known features such as specific functions or routines are not described in detail. References in this specification to "implementation / embodiment", "one implementation / embodiment", etc. mean that the specific features, structures, materials or characteristics described are included in at least one implementation of the described technology. Therefore, the appearance of such phrases in this specification does not necessarily refer to the same implementation / embodiment. On the other hand, such references are not necessarily mutually exclusive. In addition, in one or more implementations / embodiments, specific features, structures, materials or characteristics can be combined in any suitable manner. It should be understood that the various implementations shown in the figures are merely illustrative representations and are not necessarily drawn to scale.

[0063] For the sake of clarity, this disclosure does not set forth several details describing structures or processes that are well known and generally associated with communication systems and subsystems, but which may unnecessarily obscure some important aspects of the disclosed technology. In addition, although the following disclosure sets forth several implementations of different aspects of the present disclosure, several other implementations may have different configurations or different components than those described in this section. Accordingly, the disclosed technology may have other implementations with additional elements or without several of the elements described below.

[0064] Many implementations or aspects of the technology described in this disclosure can take the form of computer or processor executable instructions, including routines performed by a programmable computer or processor. Those skilled in the relevant art will understand that the described technology can be practiced on computer or processor systems other than those shown and described below. The technology described in this disclosure can be implemented in a special-purpose computer or data processor that is specially programmed, configured, or constructed to perform one or more of the computer-executable instructions described below. Therefore, the terms "computer" and "processor" generally used in this disclosure refer to any data processor. The information processed by these computers and processors can be presented on any suitable display medium. Instructions for performing computer or processor executable tasks can be stored in or on any suitable computer-readable medium, including hardware, firmware, or a combination of hardware and firmware. Instructions can be contained in any suitable storage device, including, for example, a flash drive and / or other suitable media.

[0065] The term "and / or" in this specification is only used to describe the association relationship of associated objects, and indicates that there may be three relationships. For example, A and / or B can represent the following three situations: A exists alone, A and B both exist, and B exists alone. The description "or" used in this disclosure refers to any possible arrangement of a group of objects. For example, the phrase "A, B or C" refers to at least one of A, B, C or any combination thereof, for example, A; B; C; A and B; A and C; B and C; A, B and C; or multiples of any objects, for example, A and A; B, B and C; A, A, B, C and C, etc.

[0066] These and other changes can be made to the disclosed technology in light of the above detailed description. Although the detailed description describes certain examples of the disclosed technology and the best mode contemplated, no matter how detailed the above description is described in the disclosure, the disclosed technology can be practiced in a variety of ways. The details of the system can vary considerably in its specific embodiments and still be covered by the technology disclosed in this disclosure. As described above, the use of specific terms when describing certain features or aspects of the disclosed technology should not be taken to imply that the term is redefined in this disclosure to be limited to any specific feature, characteristic or aspect of the disclosed technology associated with the term. Therefore, the present invention is not limited except to the claims appended hereto. In general, the terms used in the following claims should not be interpreted as limiting the disclosed technology to the specific examples disclosed in the specification unless the above detailed description section expressly defines such terms.

[0067] Those skilled in the art will appreciate that, in conjunction with the examples described in the embodiments disclosed in this specification, the units and algorithm steps can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0068] Although certain aspects of the invention are presented below in certain claim forms, the applicants contemplate presenting the various aspects of the invention in any number of claim forms. Accordingly, the applicants reserve the right to seek additional claims in this or a continuing application after filing this application.

Claims

1. A method for downlink (DL) positioning reference signal (PRS) configuration, comprising: The terminal device receives information for configuring one or more DL PRS resource sets, wherein each DL PRS resource set includes one or more DL PRS resources, each DL PRS resource set corresponds to a spatial transmission filter, and the spatial transmission filter corresponds to a first value; and The terminal device performs configuration according to the received information for configuring the one or more DL PRS resource sets.

2. The method according to claim 1, wherein: The received information for configuring the one or more DL PRS resource sets comes from a network node.

3. The method according to claim 2, wherein: The network node comprises a transmission / reception point TRP.

4. The method according to claim 1, wherein: The received information for configuring the one or more DL PRS resource sets includes a DL PRS resource period for each DL PRS resource set in the one or more DL PRS resource sets; The DL PRS resource period includes a value indicating a time slot; or The DL PRS resource period includes a value indicating a time in milliseconds.

5. The method according to claim 1, wherein: The received information for configuring the one or more DL PRS resource sets includes a DL PRS muting pattern for each of the one or more DL PRS resource sets.

6. The method according to claim 5, wherein: The DL PRS muting pattern indicates a time location at which one or more DL PRS resources are not expected to be transmitted for the one or more DL PRS downlink positioning reference signal resource sets.

7. The method according to claim 5, wherein: The DL PRS muting mode corresponds to "N P "value, the "N P " value indicates consecutive instances of the one or more DL PRS resources that are set to silence.

8. The method according to claim 7, wherein: The received information for configuring the one or more DL PRS resource sets includes a DL PRS resource period "T" for each DL PRS resource set in the one or more DL PRS resource sets. PRS ", wherein the DL PRS resource period "T PRS ” and “N” for each DL PRS resource set P The product of the values ​​is set to be no greater than the first value; Wherein, the first value is "2 μ ×Q", where "Q" is a preset value and parameter "v" is one of the following values: 0, 1, 2, and 3; or The first value is determined based on a function of a number of bits in a first bitmap of the DL PRS muting pattern.

9. The method according to claim 7, wherein: The received information for configuring the one or more DL PRS resource sets includes a DL PRS resource period "T" for each DL PRS resource set in the one or more DL PRS resource sets. PRS ”, where "T PRS / 2 μ ” and “N” for each DL PRS resource set P ” values ​​is set to be no greater than a preset value, and the parameter “μ” is one of the following values: 0, 1, 2, and 3.

10. An apparatus comprising: Memory; a processor coupled to the memory and configured to: receiving information for configuring one or more downlink DL positioning reference signal PRS resource sets, Each DL PRS resource set includes one or more DL PRS resources, each DL PRS resource set corresponds to a spatial transmission filter, and the spatial transmission filter corresponds to a first value; and The configuration is performed according to the received information for configuring the one or more DL PRS resource sets.

11. The device according to claim 10, wherein: The received information for configuring the one or more DL PRS resource sets includes a DL PRS muting pattern for each of the one or more DL PRS resource sets.

12. The device according to claim 11, wherein The DL PRS muting mode corresponds to "N P "value, the "N P " value indicates consecutive instances of the one or more DL PRS resources that are set to silence.

13. The device according to claim 12, wherein: The received information for configuring the one or more DL PRS resource sets includes a DL PRS resource period "T" for each DL PRS resource set in the one or more DL PRS resource sets. PRS ", wherein the DL PRS resource period "T PRS ” and “N” for each DL PRS resource set P The product of the " values ​​is set to be no greater than the first value.

14. The device according to claim 12, wherein: The received information for configuring the one or more DL PRS resource sets includes a DL PRS resource period "T" for each DL PRS resource set in the one or more DL PRS resource sets. PRS ”, where "T PRS / 2 μ ” and “N” for each DL PRS resource set P ” values ​​is set to be no greater than a preset value, and the parameter “μ” is one of the following values: 0, 1, 2, and 3.

15. A system comprising: A terminal device, wherein the terminal device is configured to: receiving information for configuring one or more downlink DL positioning reference signal DL PRS resource sets, Each DL PRS resource set includes one or more DL PRS resources, each DL PRS resource set corresponds to a spatial transmission filter, and the spatial transmission filter corresponds to a first value; and The configuration is performed according to the received information for configuring the one or more DL PRS resource sets.

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