Method and apparatus for downlink positioning reference signal configuration

Abstract

Methods and systems for downlink (DL) positioning reference signal (PRS) configuration. The method includes a terminal device receiving information for configuring one or more DL PRS resource sets, and configuring according to the received information for configuring the 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 a first value.

Description

[0001] This application is a divisional application of PCT International Patent Application No. PCT / IB2022 / 053931, filed on April 28, 2022, entitled “Method and Apparatus for Downlink Positioning Reference Signal Configuration,” which entered the National Phase of the China Patent Application No. 202280012178.0, with the filing date of April 28, 2022, the disclosure of which is incorporated herein by reference in its entirety.

[0002] CROSS-REFERENCE TO RELATED APPLICATIONS

[0003] 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

[0004] The present application relates to the field of communications, and more specifically, to wireless communication systems, methods, and devices. BACKGROUND

[0005] The rapid development of computing technology has created greater demand for data communications. The ever-increasing demand, in turn, has promoted further development of communication technologies, including beam communications or operations. New radio (NR) or 5th generation (5G) communication systems support positioning technologies. In 3GPP NR, downlink positioning reference signals (PRS) are introduced to support downlink positioning measurements, and sounding reference signals (SRS) for positioning are introduced to support uplink positioning measurements.

[0006] NR-based positioning solutions involve user equipment (UE), transmission / reception points (TRPs), and location servers. The UE measures downlink (DL) PRS resources transmitted from multiple different TRPs or transmits SRS resources for “positioning.” One drawback of the current DL PRS resource configuration and transmission includes that some configurations of the higher layer parameters of the DL PRS periodicity and the 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. As a result, the measurements on the DL PRS resources are negatively affected, and the overall performance of the positioning is compromised. Therefore, it is advantageous to use improved systems and methods to address the aforementioned needs. BRIEF DESCRIPTION OF DRAWINGS

[0007] The accompanying drawings, which are included to provide a further understanding of the technology solutions in the implementations of the present disclosure and are incorporated in and constitute a part of this application, illustrate embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. In the drawings:

[0008] Figure 1 is a schematic diagram of a wireless communication system according to one or more implementations of the present disclosure.

[0009] Figure 2 is a schematic block diagram of a terminal device according to one or more implementations of the present disclosure.

[0010] Figure 3 is a flowchart of a method according to one or more implementations of the present disclosure. DETAILED DESCRIPTION

[0011] 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 TRPs with DL PRS resources with a muting pattern. The DL PRS resources can exceed the boundary of one super system frame number (SFN).

[0012] In some embodiments, the present systems provide, for a DL PRS resource set, a first value as a threshold for the 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 a number of PRS resources used. With this setup, the present disclosure provides systems and methods that support TRPs with their DL PRS resources with a muting pattern that can exceed the boundary of one super SFN.

[0013] Figure 1 is a schematic diagram of a wireless communication system 100 according to one or more implementations of the present disclosure. As 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), which can constitute one or more network nodes / devices (or base stations). Examples of network nodes / devices include a base transceiver station (BTS), a NodeB (NB), an evolved NodeB (eNB, or eNode B), a next generation NodeB (gNB or gNode B), a wireless fidelity (Wi-Fi) access point (AP), etc. In some embodiments, the network nodes / devices can include a relay station, an access point, a vehicle mounted device, a wearable device, etc. The network nodes can include a wireless link device for a communication network, which can 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), an Institute of Electrical and Electronics Engineers (IEEE) 802.11 based network (e.g., a Wi-Fi network), an Internet of Things (loT) 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 can be referred to as an NR system or network.

[0014] In Figure 1In some embodiments, the wireless communication system 100 further includes a terminal device 101. The terminal device 101 can be a terminal user device configured to facilitate wireless communication. The terminal device 101 can 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 can be mobile or stationary. The terminal device 101 can be a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile site, 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 smart phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device having wireless communication functionality, a computing device or another processing device connected to a wireless modem, an in-vehicle device, a wearable device, an Internet-of-Things (loT) device, a device used in a 5G network, a device used in a public land mobile network, and the like. For illustrative purposes, Figure 1 Only two network nodes / devices (i.e., TRPs 103, 105) and one terminal device 101 in the wireless communication system 100 are shown. However, in some instances, the wireless communication system 100 can include additional network nodes / devices and / or terminal devices.

[0015] The terminal device 101 can be configured with one or more DL PRS resource set configurations (e.g., from any of the TRPs 103, 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 can have one or more of the following parameters:

[0016] [1] A DL PRS resource periodicity. In some embodiments, the periodicity “T PRS ” of the DL PRS resources can be a value in units of slots. In some embodiments, the periodicity “T PRS ” of the DL PRS resources is a value in units of milliseconds.

[0017] [2] DL PRS muting pattern, a DL PRS muting pattern defines time locations for a DL PRS resource set in which no DL PRS resources are expected to be transmitted. In some embodiments, in one method of muting DL PRS resources, each bit in a first bitmap of the muting pattern corresponds to “N P ” consecutive instances of the DL PRS resource set (where for instances indicated as muted, all DL PRS resources within 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.

[0018] To support correct operation of muting on a DL PRS resource set, wireless communication system 100 can implement one or more of the following configurations.

[0019] (1) For a DL PRS resource set, the product of the periodicity “T PRS ” of the DL PRS resources and the number “N p ” of consecutive instances of the DL PRS resource set is set to be no larger than a first value. In other words, the product of T PRS and N P cannot exceed the first value.

[0020] (2) For a DL PRS resource set, the product of “T PRS / 2 μ ” and “N P ” cannot exceed a preset value. In some embodiments, the parameter “μ” can be different for different DL PRS intervals. For example, for “dl-PRS-SubcarrierSpacing = 15, 30, 60, and 120 kHz”, the parameter “μ” can be 0, 1, 2, and 3, respectively.

[0021] (3) For a DL PRS resource set, the product of “T PRS ” and “N P ” cannot exceed a value “2 μ ×Q”, “Q” can be a preset value. For “dl-PRS-SubcarrierSpacing = 15, 30, 60, and 120 kHz”, the parameter “μ” can be 0, 1, 2, and 3, respectively.

[0022] (4) For a DL PRS resource set, the product of “T PRS ” and “N P ” cannot exceed a value R. “R” can be a function of the number of bits in the first bitmap of the muting pattern.

[0023] In some embodiments, the terminal device 101 can be configured with one or more DL PRS resource set configurations as indicated by the higher layer parameters “NR-DL-PRS-ResourceSet” and “NR-DL-PRS-Resource” as defined in clause 6.4.3 of the “17, TS 37.355” standard.

[0024] In some embodiments, each DL PRS resource set can consist of “K” (K ≥ 1) DL PRS resources, where each DL PRS resource has an associated spatial transmission filter. The terminal device 101 can be configured with one or more DL PRS positioning frequency layer configurations as indicated by the higher layer parameter “NR-DL-PRS-PositioningFrequencyLayer”.

[0025] For DL PRS resources configured in one frequency layer, the terminal device 101 can have a subcarrier spacing configuration for the DL PRS resources. More specifically, the higher layer parameter “dl-PRS-SubcarrierSpacing” can 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 can have the same “dl-PRS-SubcarrierSpacing” value.

[0026] A 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”. A 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:

[0027] [1] “dl-PRS-Periodicity-and-ResourceSetSlotOffset” can define the DL PRS resource periodicity and use values of slots. In the foregoing embodiments, μ equals 0, 1, 2, and 3 for dl-PRS-SubcarrierSpacing = 15, 30, 60, and 120 kHz, respectively. For “SFN0 slot 0”, a DL PRS resource set has a slot offset. All DL PRS resources in one DL PRS resource set are configured with the same DL PRS resource periodicity.

[0028] [2] “dl-PRS-MutingOption1” and “dl-PRS-MutingOption2” can define time locations for which no DL PRS resources are 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” of consecutive instances of the DL PRS resource set, where for the instances indicated as muted, all DL PRS resources within the resource set are muted. The length of the bitmap can be {2, 4, 6, 8, 16, 32} bits.

[0029] If “dl-PRS-MutingOption2” is configured, each bit in the bitmap of dl-PRS-MutingOption2 corresponds to a single repetition index of 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”.

[0030] “dl-PRS-MutingOption1” and “dl-PRS-MutingOption2” can be configured simultaneously, in which case the logical AND operation is applied to the bitmaps as described in clause 7.4.1.7.4 of the “4, TS 38.211” standard.

[0031] 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:

[0032] [1] In one example, And the product of the higher layer parameter dl-prs-MutingBitRepetitionFactor cannot exceed “2 μ ×1280”, where μ equals 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 the DL PRS resource.

[0033] [2] In another example, The product of the number of bits in the bitmap of dl-PRS-MutingOption1 and the higher layer parameter dl-prs-MutingBitRepetitionFactor cannot exceed 1280, where μ equals 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 for the DL PRS resource configuration. μ The value “B” can be 10240, 5120, 2560, 1280, 640, 320, 160, 80, or 64.

[0034] [3] In yet another example, The product of the number of bits in the bitmap of dl-PRS-MutingOption1 and the higher layer parameter dl-prs-MutingBitRepetitionFactor cannot exceed 1280, where μ equals 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 for the DL PRS resource configuration.

[0035] [4] In another example, The product of the number of bits in the bitmap of dl-PRS-MutingOption1 and the higher layer parameter dl-prs-MutingBitRepetitionFactor cannot exceed a value “C”. The value “C” can be 10240, 5120, 2560, 1280, 640, 320, 160, 80, or 64.

[0036] In some embodiments, The product of the number of bits in the bitmap of dl-PRS-MutingOption1 and the higher layer parameter dl-prs-MutingBitRepetitionFactor cannot exceed a 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.

[0037] 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.

[0038] In the above examples, μ equals 0, 1, 2, and 3 for dl-PRS-SubcarrierSpacing = 15, 30, 60, and 120 kHz, respectively, dl-PRS-SubcarrierSpacing being the subcarrier spacing for the DL PRS resource configuration.

[0039] In some embodiments, The product of and the higher layer parameter dl-prs-MutingBitRepetitionFactor cannot exceed a 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.

[0040] In the above examples, μ equals 0, 1, 2, and 3 for dl-PRS-SubcarrierSpacing = 15, 30, 60, and 120 kHz, respectively, dl-PRS-SubcarrierSpacing being the subcarrier spacing for the DL PRS resource configuration.

[0041] In some embodiments, the terminal device 101 does not expect The product of and the higher layer parameter dl-prs-MutingBitRepetitionFactor does not exceed 1280. In some embodiments, the terminal device 101 does not expect The product of and the higher layer parameter dl-prs-MutingBitRepetitionFactor does not exceed “C” (example values of C include 10240, 5120, 2560, 1280, 640, 320, 160, 80, and 64).

[0042] In some embodiments, the terminal device 101 does not expect the product of the number of bits in the bitmap of dl-PRS-MutingOptionl and the higher layer parameter dl-prs-MutingBitRepetitionFactor exceeds a value "E". The value of E is determined based on the number of bits in the bitmap of dl-PRS-MutingOptionl.

[0043] For example, if the number of bits in the bitmap of dl-PRS-MutingOptionl is 2, then E = 2 μ x 5120. If the number of bits in the bitmap of dl-PRS-MutingOptionl is 4, then E = 2 μ x 2560. If the number of bits in the bitmap of dl-PRS-MutingOptionl is 6, then E = 2 μ x 1280. If the number of bits in the bitmap of dl-PRS-MutingOptionl is 8, then E = 2 μ x 1280. If the number of bits in the bitmap of dl-PRS-MutingOptionl is 16, then E = 2 μ x 640. If the number of bits in the bitmap of dl-PRS-MutingOptionl is 32, then E = 2 μ x 320.

[0044] 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 for the DL PRS resource configuration.

[0045] In some embodiments, the terminal device 101 does not expect the product of the number of bits in the bitmap of dl-PRS-MutingOptionl and the higher layer parameter dl-prs-MutingBitRepetitionFactor exceeds a value "E". The value of E is determined based on the number of bits in the bitmap of dl-PRS-MutingOptionl.

[0046] For example, if the number of bits in the bitmap of dl-PRS-MutingOptionl is 2, then E = 5120. If the number of bits in the bitmap of dl-PRS-MutingOptionl is 4, then E = 2560. If the number of bits in the bitmap of dl-PRS-MutingOptionl is 6, then E = 1280. If the number of bits in the bitmap of dl-PRS-MutingOptionl is 8, then E = 1280. If the number of bits in the bitmap of dl-PRS-MutingOptionl is 16, then E = 640. If the number of bits in the bitmap of dl-PRS-MutingOptionl is 32, then E = 320.

[0047] 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 for the DL PRS resource configuration.

[0048] In some embodiments, the terminal device 101 does not expect and the product of the higher layer parameter dl-prs-MutingBitRepetitionFactor exceeds 2 μ × 1280. 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 for the DL PRS resource configuration. In one example, the terminal device 101 does not expect and the product of the higher layer parameter dl-prs-MutingBitRepetitionFactor exceeds 2 μ × B. The value B can be 10240, 5120, 2560, 1280, 640, 320, 160, 80, and 64.

[0049] In some embodiments, the DL PRS resources and DL PRS resource sets can be defined by enumerating a number of acceptable parameters and values. In some embodiments, the restrictions on configuring DL PRS resources can also be described by listing a number of acceptable parameters and values for various use cases.

[0050] 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 1a schematic block diagram of an example of a terminal device 101. As shown, the terminal device 200 includes a processing unit 210 (e.g., a DSP, CPU, GPU, etc.) and a memory 220. The processing unit 210 can be configured to implement instructions corresponding to the methods and / or other aspects of the Figure 2 above implementations discussed herein. The processing unit 210 can also be coupled to the memory 220.

[0051] It should be understood that the processor in the implementation of the technology can be an integrated circuit chip and has a signal processing capability. In the implementation process, the steps in the foregoing method can be implemented by using an integrated logic circuit or an instruction in the form of software in the hardware of the processor. 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 devices, discrete gate or transistor logic devices, and a discrete hardware component. The methods, steps and logical block diagrams disclosed in the implementation of the technology can be implemented or executed. The general-purpose processor can be a microprocessor, or the processor can be any conventional processor or the like. The steps in the method disclosed with reference to the implementation of the technology can be directly executed or completed by a decoding processor implemented as hardware, or by using a combination of hardware and software in the decoding processor. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, or other mature storage media in this field. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps in the foregoing method in combination with its hardware.

[0052] It is appreciated that the memory 220 in the implementation of this technology can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. Nonvolatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random-access memory (RAM), used as external cache. For an exemplary, non-limiting description, many forms of RAM exist, 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 (DR RAM). It is noted that the memory described herein is intended to include, among others, these and any other suitable types of memory.

[0053] Figure 3is a flowchart of a method 300 according to one or more implementations of the present disclosure. The method 300 can be implemented by a wireless communication system (e.g., the wireless communication system 100) including a terminal device (e.g., the terminal device 101) and a network node / device or gNB (e.g., a TRP or other suitable network node / device as described herein). The method 300 is for downlink positioning reference signal configuration.

[0054] At block 301, the method 400 begins with the 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 can correspond to a first value or a preset value.

[0055] In some embodiments, the received information for configuring the one or more DL PRS resource sets is from a network node. In some embodiments, the network node includes a transmission / reception point (TRP). In some embodiments, the network node can be a base station.

[0056] In some embodiments, the received information for configuring the one or more DL PRS resource sets includes a DL PRS resource periodicity for each of the one or more DL PRS resource sets. In some embodiments, the DL PRS resource periodicity includes a value indicating a slot. In some embodiments, the DL PRS resource periodicity includes a value indicating a time in milliseconds.

[0057] In some embodiments, 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. The DL PRS muting pattern can indicate time locations for which transmission of one or more DL PRS resources is not expected for the one or more DL PRS resource sets.

[0058] In some embodiments, the DL PRS muting pattern corresponds to an “N P ” value indicating consecutive instances of one or more DL PRS resources that are set to be muted. The received information for configuring the one or more DL PRS resource sets can also include a DL PRS resource periodicity “T PRS ” for each of the one or more DL PRS resource sets. The DL PRS resource periodicity “T PRS ” and the “N PThe product of the values can be set to be no greater than the first value.

[0059] In some embodiments, the first value can 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 (e.g., corresponding to “dl-PRS-SubcarrierSpacing = 15, 30, 60, and 120 kHz”, respectively).

[0060] In some embodiments, the product of “T PRS / 2 μ ” and the “N P ” value of each DL PRS resource set 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, each value corresponding to a different carrier spacing (e.g., corresponding to “dl-PRS-SubcarrierSpacing = 15, 30, 60, and 120 kHz”, respectively).

[0061] In some embodiments, the first value is determined based on a function of a number of bits in a first bitmap of a DL PRS muting pattern.

[0062] At block 303, the method 300 continues with the terminal device being configured according to the received information for configuring one or more DL PRS resource sets.

[0063] The detailed description of examples of the technology disclosed herein in the foregoing is not intended to be exhaustive or to be limited to the precise form disclosed above. While specific examples of the technology disclosed herein are described above, various equivalent modifications or alternatives to those examples will be apparent to those skilled in the art in view of the technology described herein. For example, while processes or blocks are presented in a given order, alternative implementations can perform routines having steps in a different order, or employ systems having blocks in a different order, and some processes or blocks can be deleted, moved, added, subdivided, combined, and / or modified to provide alternative or subcombinations. Each of these processes or blocks can be implemented in a variety of different ways. Also, while processes or blocks are at times shown as being performed in series, these processes or blocks can instead be performed or implemented in parallel, or can be performed at different times. Further, any specific numbers noted herein are merely examples, and alternative implementations can employ different values or ranges.

[0064] In the detailed description, numerous specific details are set forth in order to provide a thorough understanding of the current described technology. In other implementations, the technology presented herein can be practiced without some of these specific details. In other instances, well-known features have not been described in detail so as not to unnecessarily obscure the present disclosure. References in the specification to "an implementation," "one implementation," etc., indicate that the described feature, structure, material, or characteristic being discussed is included in at least one implementation of the technology. Thus, the appearances of such phrases in various places in the specification are not necessarily all referring to the same implementation. In addition, the

[0065] For the sake of brevity, the present disclosure often omits details regarding the structure of well-known structures and devices, the manner in which they operate, and the software that defines the behavior of such devices, to avoid unnecessarily obscuring the relevant present disclosure. Additionally, the various implementations described herein can be used with other communications systems and techniques, as well. For the sake of brevity, many of the numerous structures and functions have not been described in detail herein. However, the implementations disclosed herein are practiced with the full understanding of the appropriate breadth of the relevant technology.

[0066] Many implementations or aspects of the technology described in this disclosure can take the form of computer- or processor-executable instructions, including routines executed by a programmable computer or processor. Those skilled in the relevant art will appreciate that the technology described can be practiced on a computer or processor system 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 specifically programmed, configured, or constructed to perform one or more of the computer-executable instructions described below. Accordingly, the terms "computer" and "processor" as generally used herein refer to any data processor. Information handled 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. The instructions can be included in any suitable storage device, including, for example, a flash drive and / or other suitable medium.

[0067] The term “and / or” in this specification is used to describe any one of the associated objects, and means that there can be three relationships, for example, A and / or B can mean the following three cases: A alone, A and B both exist, B 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 any multiple of the objects, for example, A and A; B, B and C; A, A, B, C and C, etc.

[0068] According to the above detailed description, these and other changes can be made to the disclosed technology. Although the detailed description describes certain examples of the disclosed technology and the best mode contemplated, no matter how detailed the above description is in the text disclosure, the disclosed technology can be practiced in many ways. The details of the system can vary considerably in its specific embodiments, but still be covered by the disclosed technology of this disclosure. As described above, the specific terms used when describing certain features or aspects of the disclosed technology should not be considered as implying that the term is redefined in this disclosure to be limited to any particular characteristic, feature or aspect of the disclosed technology associated with the term. Therefore, the invention is not limited except by the appended claims. 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 part explicitly defines these terms.

[0069] Those of ordinary skill in the art can know that, in combination with the examples described in the embodiments disclosed in the specification, the unit and algorithm steps can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the function is performed by 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 implement the described functions for each specific application, but should not be considered as beyond the scope of the present application.

[0070] Although certain aspects of the application are presented in the following form of certain claims, the applicant considers that various aspects of the application can be presented in any number of claims. Therefore, the applicant reserves the right to seek additional claims in the present application or continuation application after the filing of the present application.

Claims

1. A method for configuring a downlink DL positioning reference signal (PRS), 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 is configured based on the received information for configuring the one or more DL PRS resource sets. The received information for configuring the one or more DL PRS resource sets includes a DL PRS silent mode for each DL PRS resource set in the one or more DL PRS resource sets, wherein the DL PRS silent mode corresponds to "N P "value, the "N" P The value indicates the consecutive instances of the one or more DL PRS resources that are set to silent; and The received information for configuring the one or more DL PRS resource sets includes the DL PRS resource period "T" for each DL PRS resource set in the one or more DL PRS resource sets. PRS The DL PRS resource cycle "T" PRS "and each DL PRS resource set's "N P The product of the values ​​is set to be no greater than the first value; The first value is " ", where "Q" is the preset value, and the parameter " " is one of the following values: 0, 1, 2, and 3; or The first value is determined by a function of the number of bits in the first bitmap of the DL PRS silent mode.

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 nodes include Transmit / Receive Points (TRPs).

4. The method according to claim 1, wherein, The DL PRS resource period includes a value indicating the time slot; or The DL PRS resource period includes a value indicating time in milliseconds.

5. The method according to claim 1, wherein, The DL PRS silent mode indicates that for the one or more DL PRS downlink location reference signal resource sets, the time position of one or more DL PRS resources is not expected to be transmitted.

6. The method according to claim 1, wherein, For dl PRS SubcarrierSpacing=15, 30, 60 and 120kHz, The values ​​are 0, 1, 2, and 3 respectively, and the dl PRS SubcarrierSpacing is the subcarrier spacing configured for DL ​​PRS resources.

7. An apparatus comprising: Memory; A processor, coupled to the memory and configured to: Receive 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 Configure the one or more DL PRS resource sets according to the received information. The received information for configuring the one or more DL PRS resource sets includes a DL PRS silent mode for each DL PRS resource set in the one or more DL PRS resource sets, wherein the DL PRS silent mode corresponds to "N P "value, the "N" P The value indicates the consecutive instances of the one or more DL PRS resources that are set to silent; and The received information for configuring the one or more DL PRS resource sets includes the DL PRS resource period "T" for each DL PRS resource set in the one or more DL PRS resource sets. PRS The DL PRS resource cycle "T" PRS "and each DL PRS resource set's "N P The product of the values ​​is set to be no greater than the first value; The first value is " ", where "Q" is the preset value, and the parameter " " is one of the following values: 0, 1, 2, and 3; or The first value is determined by a function of the number of bits in the first bitmap of the DL PRS silent mode.

8. The apparatus according to claim 7, wherein, The received information for configuring the one or more DL PRS resource sets comes from a network node.

9. The apparatus according to claim 8, wherein, The network nodes include Transmit / Receive Points (TRPs).

10. The apparatus according to claim 7, wherein, The DL PRS resource period includes a value indicating the time slot; or The DL PRS resource period includes a value indicating time in milliseconds.

11. The apparatus according to claim 7, wherein, The DL PRS silent mode indicates that for the one or more DL PRS downlink location reference signal resource sets, the time position of one or more DL PRS resources is not expected to be transmitted.

12. The apparatus according to claim 7, wherein, For dl PRS SubcarrierSpacing=15, 30, 60 and 120kHz, The values ​​are 0, 1, 2, and 3 respectively, and the dl PRS SubcarrierSpacing is the subcarrier spacing configured for DL ​​PRS resources.

13. A system comprising: Terminal device, the terminal device being configured to: Receive 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 Configure the one or more DL PRS resource sets according to the received information. The received information for configuring the one or more DL PRS resource sets includes a DL PRS silent mode for each DL PRS resource set in the one or more DL PRS resource sets, wherein the DL PRS silent mode corresponds to "N P "value, the "N" P The value indicates the consecutive instances of the one or more DL PRS resources that are set to silent; and The received information for configuring the one or more DL PRS resource sets includes the DL PRS resource period "T" for each DL PRS resource set in the one or more DL PRS resource sets. PRS The DL PRS resource cycle "T" PRS "and each DL PRS resource set's "N P The product of the values ​​is set to be no greater than the first value; The first value is " ", where "Q" is the preset value, and the parameter " " is one of the following values: 0, 1, 2, and 3; or The first value is determined by a function of the number of bits in the first bitmap of the DL PRS silent mode.

14. The system according to claim 13, wherein, The DL PRS silent mode indicates that for the one or more DL PRS downlink location reference signal resource sets, the time position of one or more DL PRS resources is not expected to be transmitted.

15. The system according to claim 13, wherein, For dl PRS SubcarrierSpacing=15, 30, 60 and 120kHz, The values ​​are 0, 1, 2, and 3 respectively, and the dl PRS SubcarrierSpacing is the subcarrier spacing configured for DL ​​PRS resources.

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