Alignment of positioning reference signal configuration in wireless communication

Abstract

This document generally relates to wireless communications including a user device that transmits alignment information to a Location Management Function (LMF), wherein the alignment information comprises at least one of the following: positioning reference signal (PRS) time offset, PRS duration, PRS period index, one or more PRS periodicities, discontinuous receive (DRX) configuration, extended DRX (eDRX) configuration, paging time window (PTW) configuration, or PRS receive window configuration. The user device receives a PRS configuration according to the alignment information. In addition, or alternatively, a radio access node (RAN) node receives a request for alignment information from the LMF, wherein the alignment information comprises at least one of the DRX configuration, eDRX configuration, or PRS receive window configuration. The RAN node reports the alignment information to the LMF, and the RAN node transmits a PRS corresponding to the alignment information.

Description

Technical Field

[0001] Technical Field This document generally relates to relaxed positioning reference signal (PRS) configuration alignment for wireless communication.

Background Art

[0002] Background A low-power high-precision positioning (LPHAP) user device configured to optimize power saving while performing positioning can reduce power consumption by aligning a positioning reference signal (PRS) configuration with a discontinuous reception (DRX) / enhanced DRX (eDRX) configuration in the time domain, particularly in a radio resource control (RRC) inactive state and / or an RRC idle state. By the alignment, the user device 102 may not consume extra ramp-up / ramp-down power when receiving PRS and paging. Thus, a method for achieving the alignment may be sought.

Summary of the Invention

Means for Solving the Problems

[0003] Summary This document relates to methods, systems, apparatuses, and devices for wireless communication. In some implementations, a method for wireless communication is for a user device to transmit alignment information to a location management function (LMF), where the alignment information comprises at least one of a positioning reference signal (PRS) time offset, a PRS duration, a PRS period index, one or more PRS periodicities, a discontinuous reception (DRX) configuration, an extended DRX (eDRX) configuration, a paging time window (PTW) configuration, or a PRS reception window configuration, and for the user device to receive from the LMF a PRS configuration according to the alignment information.

[0004] In some other implementations, a method for wireless communication includes receiving alignment information from a user device by a position management function (LMF), wherein the alignment information comprises at least one of the following: positioning reference signal (PRS) time offset, PRS duration, PRS period index, one or more PRS periodicities, discontinuous reception (DRX) configuration, extended DRX (eDRX) configuration, paging time window (PTW) configuration, or PRS reception window configuration, and transmitting a PRS configuration according to the alignment information to the user device by the LMF.

[0005] In some other implementations, the method for wireless communication includes a radio access node (RAN) node receiving a request for alignment information from a location management function (LMF), wherein the alignment information comprises at least one of a discontinuous receive (DRX) configuration, an extended DRX (eDRX) configuration, or a positioning reference signal (PRS) receive window configuration; the RAN node reporting the alignment information to the LMF; and the RAN node transmitting a PRS corresponding to the alignment information to a user device.

[0006] In some other implementations, devices such as network devices are disclosed. The device may include one or more processors and one or more memories, one or more processors configured to read computer code from one or more memories to implement one of the methods described above.

[0007] In addition, several other implementations disclose computer program products. These computer program products may include a non-temporary computer-readable program medium having stored computer code, which, when executed by one or more processors, causes one or more processors to implement any of the methods described above.

[0008] The above and other embodiments, as well as their implementations, will be described in more detail in the drawings, this description, and the claims. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 shows a block diagram of an example of a wireless communication system.

[0010] [Figure 2] Figure 2 shows a block diagram of an example configuration of the wireless access node in the wireless communication system shown in Figure 1.

[0011] [Figure 3] Figure 3 shows a flowchart of an example method for wireless communication.

[0012] [Figure 4] Figure 4 shows a flowchart of another example method for wireless communication.

[0013] [Figure 5] Figure 5 shows a flowchart of another example method for wireless communication.

[0014] [Figure 6] Figure 6 shows timing diagrams for example DRX timelines and PRS timelines.

[0015] [Figure 7] Figure 7 shows timing diagrams for another example of a DRX timeline and an example of a PRS timeline.

[0016] [Figure 8] Figure 8 shows timing diagrams for example DRX timelines and PRS timelines.

[0017] [Figure 9] Figure 9 shows the total number of preambles. [Modes for carrying out the invention]

[0018] Detailed Description This description describes various embodiments of systems, apparatuses, devices, and methods for wireless communication related to relaxed positioning reference signal (PRS) configuration alignment.

[0019] FIG. 1 shows a diagram of an example of a wireless communication system 100 that includes a plurality of communication nodes (or simply nodes) configured to communicate wirelessly with each other. In general, a communication node includes at least one user device 102 and at least one wireless access node 104. The example of the wireless communication system 100 in FIG. 1 is shown as including two user devices 102, a first user device 102(1) and a second user device 102(2), and one wireless access node 104. However, various other examples of the wireless communication system 100 may be possible that include any of various combinations of one or more user devices 102 and / or one or more wireless access nodes 104.

[0020] Generally, a user device as described herein, such as user device 102, may include a single electronic device or apparatus, or it may include multiple electronic devices or apparatus (e.g., a network thereof) that can communicate wirelessly over a network. A user device may comprise a user terminal, user terminal device, or user equipment (UE), or it may not be referred to as a user terminal, user terminal device, or UE. In addition, user devices may include, but are not limited to, mobile devices (mobile phones, smartphones, smartwatches, tablets, laptop computers, vehicles or other vessels (human-powered, motor-driven, or engine-driven, non-limited examples include automobiles, airplanes, trains, ships, or bicycles)) or fixed or stationary devices (non-limited examples include desktop computers or other computing devices that are not typically moved for long periods, electrical appliances, other relatively heavy devices including the Internet of Things (IoT), or computing devices used in communication or industrial environments). In various embodiments, user device 102 may include a transceiver circuit 106 coupled to an antenna 108 for wireless communication with a wireless access node 104. The transceiver circuit 106 may also be coupled to a processor 110, and the processor 110 may also be coupled to a memory 112 or other storage device. The memory 112 may store instructions or code that, when read and executed by the processor 110, cause the processor 110 to implement various methods of those described herein.

[0021] In addition, generally, a wireless access node as described herein, such as wireless access node 104, may include at least one device, electronics and / or network device or apparatus, and may comprise one or more base stations or other wireless network access points capable of wirelessly communicating via a network with one or more user devices and / or one or more other wireless access nodes 104. For example, the wireless access node 104 may comprise at least one of a 4G LTE base station, a 5G NR base station, a 5G central unit base station, a 5G distributed unit base station, a next-generation node B (gNB), an enhanced node B (eNB), or other similar or next-generation (e.g., 6G) base station or location management function (LMF) in various embodiments. The wireless access node 104 may include a transceiver circuit 114 coupled to an antenna 116 that may include antenna towers 118 of various techniques for performing wireless communication with the user device 102 or another wireless access node 104. The transceiver circuit 114 may also be coupled to one or more processors 120, which may also be coupled to a memory 122 or other storage device. The memory 122 may store instructions or code that, when read and executed by the processor 120, cause the processor 120 to implement one or more of the methods described herein.

[0022] Figure 2 shows a block diagram of an example configuration of a wireless access node 104. In this example configuration, the wireless access node 104 may include a location management function (LMF) 202 and one or more wireless access network (RAN) nodes 204. Some embodiments may include only one RAN node 204. Other embodiments may include multiple, i.e., n RAN nodes 204(1) to 204(n), where n is 2 or more, as shown in Figure 2. In addition, each component of the wireless access node 104, such as the LMF 202 and each RAN node 204, may include at least one network device and / or may be composed of hardware or a combination of hardware and software, such as having a processor 120, memory 122, transceiver circuit 114, antenna 116, and / or antenna tower 118, as shown in Figure 1 for the wireless access node 104.

[0023] In addition, as shown in Figure 2, each of the LMF202 and RAN node 204 may be configured to communicate (transmit and receive) signals and messages with each other, and may be configured to communicate (transmit and receive) with one or more user devices 102, either directly or indirectly through another component of the radio access node 104. For example, the LMF202 may communicate directly with the user device 102. In certain embodiments, the LMF202 may communicate directly with the user device 102 according to the Long-Term Evolution (LTE) Positioning Protocol (LPP) (i.e., via LPP signaling). The RAN node 204 may also communicate directly with the user device 102. In certain embodiments, the RAN node 204 may communicate directly with the user device 102 at least via radio resource control (RRC) signaling. In addition, the LMF202 may communicate directly with each RAN node 204. In certain embodiments, the LMF202 may communicate directly with each RAN node 204 according to the New Radio Positioning Protocol A (NRPPa) (i.e., via NRPPa signaling). Also, in at least some embodiments, each RAN node 204 may include one or more sub-components, as shown in Figure 2. For example, a RAN node 204 may include a gNB and / or at least one transmission / receive point (TRP) 208. Further functionality of the LMF202 and RAN node 204 will be described in more detail below.

[0024] In addition, referring back to Figure 1, in various embodiments, two communication nodes within the wireless system 100, i.e., a user device 102 and a radio access node 104, two user devices 102 without a radio access node 104, two radio access nodes 104 without user devices 102, etc., may be configured to wirelessly communicate with each other within or over a mobile network and / or radio access network, according to one or more standards and / or specifications. Generally, standards and / or specifications can define rules or procedures that communication nodes can wirelessly communicate according to them, and these standards and / or specifications may, in various embodiments, include those for communication in the millimeter (mm) wave band and / or using multi-antenna schemes and beamforming capabilities. In addition, or alternatively, standards and / or specifications may, as non-limiting examples, define radio access technologies and / or cellular technologies such as fourth-generation (4G) Long-Term Evolution (LTE), fifth-generation (5G) New Radio (NR), or New Radio Unlicensed (NR-U).

[0025] In addition, in the wireless system 100, communication nodes are configured to wirelessly transmit signals to each other. Generally, communication in the wireless system 100 between two communication nodes can be transmission or reception, or may include both transmission and reception, and generally, both occur simultaneously, depending on the perspective of a particular node in the communication. For example, in a given communication between a first node and a second node, where the first node transmits a signal to the second node and the second node receives a signal from the first node, the first node may be called the source or transmitting node or device, and the second node may be called the destination or receiving node or device, and the communication can be considered transmission for the first node and reception for the second node. Naturally, since communication nodes in the wireless system 100 can both transmit and receive signals, a single communication node may be both the transmitting / source node and the receiving / destination node simultaneously, or it may switch between being the source / transmitting node and the destination / receiving node.

[0026] Furthermore, certain signals can be characterized or defined as either uplink (UL) signals, downlink (DL) signals, or sidelink (SL) signals. An uplink signal is a signal transmitted from a user device 102 to a wireless access node 104. A downlink signal is a signal transmitted from a wireless access node 104 to a user device 102. A sidelink signal is a signal transmitted from one user device 102 to another user device 102, or from one wireless access node 104 to another wireless access node 104. In the case of sidelink transmission, the first / source user device 102 transmits the sidelink signal directly to the second / destination user device 102 without forwarding the sidelink signal to the wireless access node 104.

[0027] In addition, signals communicated between communication nodes within system 100 may be characterized or defined as data signals or control signals. Generally, data signals are signals that contain or carry data, such as multimedia data (e.g., audio and / or image data), while control signals are signals that carry control information that configures communication nodes in a particular way to communicate with each other, or that control how communication nodes communicate data signals with each other. Furthermore, specific signals may be defined or characterized by combinations of data / control and uplink / downlink / sidelink, including uplink control signals, uplink data signals, downlink control signals, downlink data signals, sidelink control signals, and sidelink data signals.

[0028] In at least some specifications, such as 5G NR, data and control signals are transmitted and / or carried over physical channels. Generally, a physical channel corresponds to a set of time-frequency resources used for transmitting signals. Different types of physical channels may be used to transmit different types of signals. For example, a physical data channel (or simply a data channel) is used to transmit data signals, and a physical control channel (or simply a control channel) is used to transmit control signals. Examples of physical data channel types, but not limited to these, include physical downlink shared channels (PDSCH) used to communicate downlink data signals, physical uplink shared channels (PUSCH) used to communicate uplink data signals, and physical sidelink shared channels (PSSCH) used to communicate sidelink data signals. In addition, examples of physical control channel types, but not limited to these, include physical downlink control channels (PDCCH) used to communicate downlink control signals, physical uplink control channels (PUCCH) used to communicate uplink control signals, and physical sidelink control channels (PSCCH) used to communicate sidelink control signals. Where used herein for simplification, unless otherwise specified, a particular type of physical channel is also used to refer to the signals transmitted over that particular type of physical channel, and / or the transmissions over that particular type of transmission. For example, PDSCH refers to the physical downlink shared channel itself, the downlink data signals transmitted over the PDSCH, or the downlink data transmission. Thus, a communication node transmitting or receiving a PDSCH means that the communication node is transmitting or receiving signals over the PDSCH.

[0029] In addition, for at least some specifications such as 5G NR, and / or for at least some types of control signals, the control signals transmitted by a communication node may include control information that provides information necessary to enable the transmission of one or more data signals between communication nodes and / or to schedule one or more data channels (or one or more transmissions on a data channel). For example, such control information may include information necessary for the proper reception, decoding, and demodulation of data signals received on a physical data channel during data transmission, and / or information necessary for uplink scheduling grants that inform a user device about the resources and transport format to be used for uplink data transmission. In some embodiments, the control information includes downlink control information (DCI) transmitted downlink from the radio access node 104 to the user device 102. In other embodiments, the control information includes uplink control information (UCI) transmitted uplink from the user device 102 to the radio access node 104, or sidelink control information (SCI) transmitted sidelink from one user device 102(1) to another user device 102(2).

[0030] Figure 3 shows a flowchart of Method Example 300 for wireless communication with alignment information related to a positioning reference signal (PRS) configuration. In block 302, user device 102 may transmit alignment information to a position management function (LMF), such as LMF 202 in Figure 2. The alignment information may include at least one of the following: PRS time offset, PRS duration, PRS period index, one or more PRS periodicities, discontinuous receive (DRX) configuration, extended DRX (eDRX) configuration, paging time window (PTW) configuration, or PRS receive window configuration. In block 304, user device 102 may receive a PRS configuration from LMF 202 according to the alignment information.

[0031] Figure 4 shows a flowchart of Example Method 400 for Wireless Communication with Alignment Information Related to PRS Configuration. In block 402, a position management function (LMF), such as the LMF202 in Figure 2, may receive alignment information from the user device 102. The alignment information may include at least one of the following: PRS time offset, PRS duration, PRS period index, one or more PRS periodicities, discontinuous receive (DRX) configuration, extended DRX (eDRX) configuration, paging time window (PTW) configuration, or PRS receive window configuration. In block 404, the LMF202 may transmit the PRS configuration according to the alignment information to the user device 102.

[0032] In some embodiments of Method 300 and / or Method 400, the LMF 202 may transmit alignment information to the Radio Access Network (RAN) node 204.

[0033] In some embodiments of Method 300 and / or Method 400, the PRS time offset may include one or more PRS time offset values ​​associated with each of the one or more PRS periodics.

[0034] In some embodiments of Method 300 and / or Method 400, the PRS duration may include one or more PRS duration values ​​associated with each of the one or more PRS periodics.

[0035] In some implementations of Method 300 and / or Method 400, the PRS periodic index may include at least one of a first PRS periodic index or a second PRS periodic index. The first PRS periodic index may be used to indicate the number of multiple PRS periods, and the second PRS periodic index may be used to indicate the index of a PRS period among multiple PRS periods. In addition, the first and second PRS periodic indexes are associated with each PRS periodicity of one or more PRS periodicities.

[0036] In Method 300 and / or some implementations of Method 300, at least one of the one or more PRS periodicities is greater than 10,240 milliseconds.

[0037] In some implementations of Method 300 and / or Method 400, the user device 102 may transmit alignment information to the LMF 202 by transmitting one or more PRS periodics associated with the PTW configuration, where at least one of the one or more PRS periodics corresponds to a paging position within the PTW, and at least one other of the one or more PRS periodics corresponds to a paging position outside the PTW.

[0038] In some implementations of Method 300 and / or Method 400, one or more PRS periodics may include a list of multiple PRS periodics ordered from highest priority to lowest priority.

[0039] In some implementations of Method 300 and / or Method 400, the PRS time offset may include at least one of the following: hyperframe offset, radio frame offset, subframe offset, slot offset, or symbol offset.

[0040] In some implementations of Method 300 and / or Method 400, the DRX configuration or eDRX configuration may include a DRX cycle value or eDRX cycle value in which the user device adopts at least one of either being inside or outside the PTW, the start time of a first physical downlink control channel (PDCCH) monitoring opportunity for paging associated with a paging opportunity (PO), the number of PDCCH monitoring opportunities for paging associated with a paging opportunity (PO), the start time of a paging frame (PF) associated with a DRX cycle or eDRX cycle, the start time of a PO associated with a PF, the number of PFs within the DRX cycle or eDRX cycle, the number of POs in the PF, the start time of a paging hyperframe associated with a PTW, the start time of a PTW within a paging hyperframe, the end time of a PTW within a paging hyperframe, or the duration of a PTW within a paging hyperframe.

[0041] In some implementations of Method 300 and / or Method 400, the PRS receive window configuration may include at least one of the following: the periodicity of the PRS receive window, a time offset between the start time of the PRS receive window and the start time of the DRX cycle or eDRX cycle to which the PRS receive window belongs, or the length of the PRS receive window.

[0042] Figure 5 shows another example of a wireless communication method 500 involving alignment information related to a PRS configuration. In block 502, a RAN node, such as one of the RAN nodes 204 in Figure 2, may receive a request for alignment information from the LMF 202. The alignment information may include at least one of a DRX configuration, an eDRX configuration, or a PRS receive window configuration. In block 504, the RAN node may report the alignment information to the LMF 202. In block 506, the RAN node may transmit the PRS configuration corresponding to the alignment information to the user device 102. In some embodiments of method 500, the RAN nodes may include a serving RAN node for the user device 102.

[0043] Further details, which may be part of one or more of Methods 300, 400, and 500, are described below.

[0044] In some embodiments, the PRS periodicity may be in milliseconds (ms) / subframe and may include {4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 640, 1280, 2560, 5120, 10240}. In addition, or alternatively, in some embodiments, the DRX cycle values ​​(in subframes) for RAN paging and core network (CN) paging may include {320, 640, 1280, 2560}. In addition, or alternatively, in some embodiments, the eDRX cycle values ​​(in subframes) for RAN paging may include {2560, 5120, 10240}. In addition, or alternatively, the eDRX cycle values ​​(in hyperframe units) for CN paging may include {1 / 4, 1 / 2, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024}. In addition, or alternatively, the paging time window length (in 1.28-second units) may include {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32}.

[0045] In some embodiments, the paging position may include at least one of the following: a paging frame (PF) position, a paging opportunity (PO) position, a PDCCH monitoring opportunity (MO) position, or a paging time window (PTW) position. The PF / PO / MO / PTW positions are for DRX or eDRX configurations that have paging cycle values.

[0046] In addition, in some embodiments, the required PRS periodicity may be within a single UE on-demand PRS request, or the required PRS periodicity may be within a single PRS frequency layer configuration of the UE on-demand PRS request.

[0047] In addition, or alternatively, in some embodiments, if power saving is required during positioning in a Radio Resource Control (RRC) inactive state (e.g., RRC_INACTIVE) and / or RRC idle phase (e.g., RRC_IDLE), the user device 102 may request a dedicated PRS configuration via LPP signaling. In some of these embodiments, the dedicated PRS configuration is a time-domain PRS configuration adjacent to (or aligned with) the current UE paging position for RAN paging and / or CN paging in the time domain. The current UE paging position for RAN paging and / or CN paging may be initially determined by the user device in accordance with, for example, the Third Generation Partnership Project (3GPP®) Technical Specification (TS) 38.304.

[0048] In addition, or alternatively, in some embodiments, the user device 102 is configured with DRX and not with eDRX, or the user device 102 is configured with DRX and eDRX but eDRX is not enabled (i.e., the user device 102 is currently employing a DRX configuration and has a specific paging position within a resolved DRX cycle). In such embodiments, if the user device 102 requests a PRS periodicity greater than the DRX cycle value, the user device 102 may also request one or more PRS time offsets with respect to the requested PRS periodicity. One or more PRS time offsets may indicate multiple paging positions within multiple DRX cycles for a single requested PRS period. Each of the one or more PRS time offsets may indicate each paging position within a single DRX cycle. This is to inform the network 104 of the paging positions of the user device 102 within the requested PRS period, allowing the network 104 to configure the PRS to accommodate the multiple paging positions. In at least some embodiments, the PRS time offset may indicate the start time of a paging frame (PF), paging opportunity (PO), or first monitoring opportunity (MO) in a paging cycle.

[0049] In addition, or alternatively, the user device 102 may also request the PRS duration for each periodicity to indicate to the LMF 202 the time at which PRS is expected to be received during one PRS period. The user device 102 may also request the PRS duration for one or more time offsets of the periodicity. The PRS durations for each time offset may be the same or different.

[0050] In addition, or alternatively, in some embodiments, the user device 102 may determine the required PRS periodicity, PRS time offset value, and / or PRS duration value based on the UE implementation. In other embodiments, the user device 102 may determine the required PRS periodicity, PRS time offset value, and / or PRS duration value based on its current DRX configuration and / or PRS receive window configuration.

[0051] Figure 6 shows timing diagrams for example DRX timelines and PRS timelines. The timing diagrams illustrate a user device 102 that sends a request when the PRS periodicity is greater than the DRX cycle. In addition, the timing diagrams show a situation where user device 102 employs a 320 millisecond (ms) DRX cycle, requests a PRS for a period of 640 ms, and the requested PRS time offsets are 280 ms and 600 ms.

[0052] In addition, or alternatively, in some embodiments, the user device 102 may request a PRS periodicity that is the same as the DRX cycle value. In such embodiments, the user device 102 may also request a PRS time offset with respect to the requested PRS periodicity. In these embodiments, since the PRS periodicity and the DRX cycle are the same, only one time offset value is sufficient to indicate the paging position. In addition, the PRS time offset may also indicate the start time of the PF, PO, or first MO in the paging cycle. In some of these embodiments, if a user device 102 has multiple POs or multiple PFs in the paging cycle to monitor paging, the user device 102 may request one or more PRS time offsets with respect to the requested PRS periodicity, each of which one or more PRS time offsets corresponds to one PO or PF position in the paging cycle.

[0053] In addition, or alternatively, in some embodiments where the user device 102 requests a periodicity that is the same as the DRX cycle value, the user device 102 may also request a PRS duration for each periodicity to indicate to the LMF 202 the time at which a PRS is expected to be received during one PRS period. The user device 102 may also request a PRS duration for one or more PRS time offsets of the periodicity. The durations for each PRS time offset may be the same or different.

[0054] In addition, or alternatively, the user device 102 may also include an indication for the purpose of an on-demand PRS request. The indication may include whether the user device 102 is requested to perform alignment between the PRS and the DRX.

[0055] In addition, or alternatively, in some embodiments, the user device 102 may request a PRS periodicity smaller than the DRX cycle value. In such embodiments, the user device 102 may also indicate a PRS periodic index and a time offset value to the LMF 202 in the request message. The PRS periodic index may include at least one of a first PRS periodic index or a second PRS periodic index. A first PRS periodic index, e.g., X, may be used to indicate a number of PRS periods. A second PRS periodic index, e.g., Y, may be used to indicate the Y-th PRS period out of X PRS periods. In other embodiments, Y may be used to indicate the number of PRS periods between the first PRS period (out of X PRS periods) and a specific PRS period requested (out of X PRS periods). In addition, or alternatively, the time offset value may indicate a time offset between the start time of the Y-th PRS period and the start time of the requested PRS time position within the Y-th PRS period.

[0056] In addition, or alternatively, the user device 102 may also request the PRS duration for each periodicity to indicate to the LMF 202 the time at which PRS is expected to be received during one PRS period. The user device 102 may also request the PRS duration for one or more time offsets of the periodicity. The PRS durations for each time offset may be the same or different.

[0057] Figure 7 shows timing diagrams for example DRX timelines and PRS timelines. Figure 7 illustrates an example of the PRS request situation for user device 102 when the PRS periodicity is smaller than the DRX cycle. For example, the DRX cycle may be 320ms, the requested PRS periodicity may be 80ms, X=4, Y=1 when the range of Y values ​​is {0,1,2,3,…}, and Y=2 when the range of Y values ​​is {1,2,3,4,…}. In addition, the requested time offset is 30ms, which is relative to the start time of the Y-th PRS period.

[0058] In addition, or alternatively, in some embodiments, the user device 102 may be configured with an eDRX, which is turned on. In such embodiments, if the user device 102 currently has one or more paging time windows (PTWs) for RAN paging and / or CN paging, the periodicity of paging positions within and outside the PTWs may differ for the user device 102. For example, assuming that the number of PTWs in which the user device 102 currently resides is P, the user device 102 requests P+Q PRS configurations from the LMF 202. Of these, P PRS configurations are each for P PTWs, and the other Q PRS configurations are for aligning PRSs with paging positions outside the PTWs in a paging cycle / extended paging cycle. As used in the example, P is an integer equal to or greater than 1, and Q is an integer equal to or greater than 1. A PRS configuration includes at least one of one or more PRS periodicities, one or more PRS time offsets, or one or more PRS durations. In addition, or alternatively, in some of these embodiments, the user device 102 may request one or more PRS time offsets and / or one or more PRS durations associated with each requested PRS periodicity, or the user device 102 may request PRS time offsets and / or PRS durations associated with all requested PRS periodicities. In addition, or alternatively, in some of these embodiments, the user device 102 may request a PRS start time and a PRS end time, taking into account the PTW configuration. Specifically, the PRS start time is the PTW start time, and the PRS end time is the PTW end time. The PTW may be the next PTW closest to the time when the user device 102 makes an on-demand PRS request.

[0059] As an example, assume P=1 and Q=1. Within the PTW, user device 102 adopts a DRX value or eDRX value of 320ms. In addition, outside the PTW, user device 102 adopts a DRX value or eDRX value of 640ms. Under these conditions, user device 102 may require two PRS periodics, one of which is 640ms and the other is 320ms. Each PRS periodic may be associated with one or more PRS time offsets and one or more PRS durations.

[0060] Figure 8 shows timing diagrams for example DRX timelines and PRS timelines. The timing diagrams in Figure 8 may show an example of a PRS request from user device 102 when configured with PTW.

[0061] In other embodiments where user device 102 is not configured with PTW, user device 102 may only monitor paging during eDRX cycles for RAN paging and / or CN paging. In such embodiments, user device 102 may behave as if user device 102 were configured with DRX and not with eDRX, or user device 102 may be configured with DRX and eDRX, for example, by replacing DRX cycles with eDRX cycles, but with eDRX not turned on as described above.

[0062] In addition, or alternatively, the PRS time offset or time offset may include at least one of the following: hyperframe offset, radio frame offset, subframe offset, slot offset, or symbol offset. In any of the various embodiments, the unit of the hyperframe offset is a hyperframe, the unit of the radio frame offset is a radio frame, the unit of the subframe offset is a subframe, the unit of the slot offset is a slot, and the unit of the symbol offset is a symbol. In addition, or alternatively, the unit of the PRS duration may be at least one of the following: hyperframe, radio frame, subframe, slot, or symbol.

[0063] In addition, or alternatively, in some embodiments, one or more requested PRS periodicity values ​​may be associated with priority indications. In other embodiments, the requested PRS periodicity may be in the form of a list containing one or more PRS periodicity values ​​ordered from highest priority to lowest priority. In other embodiments, one or more requested PRS time offset values ​​may be associated with priority indications, or the requested PRS time offset list may contain one or more PRS time offset values ​​ordered from highest priority to lowest priority. In other embodiments, one or more requested PRS duration values ​​may be associated with priority indications, or the requested PRS duration list may contain one or more PRS duration values ​​ordered from highest priority to lowest priority.

[0064] In addition, or alternatively, in some embodiments, the PRS periodicity may be extended to greater than 10240 ms. In addition, or alternatively, the range of values ​​for the PRS periodicity may include at least one of {2, 4, 8, 16, 32, 64, 128, 256, 512, 1024}, where the unit is hyperframes. Such embodiments may be suitable for the eDRX cycle values ​​of RRC_INACTIVE and / or RRC_IDLE.

[0065] In addition, or alternatively, if there is a need for power saving while positioning in an RRC inactive state (e.g., RRC_INACTIVE) and / or RRC idle state (e.g., RRC_IDLE), the user device 102 may report a DRX or eDRX configuration regarding the location where paging is being monitored (e.g., paging location) to the LMF 202 via LPP signaling or the like. By doing so, the LMF 202 and / or NG-RAN node 204 may be notified that they may provide and / or configure an appropriate PRS configuration that is close to (or aligned with) the reported UE paging location for RAN paging and / or CN paging in the time domain. In such embodiments, the current UE paging location for RAN paging and / or CN paging may be initially determined by the user device in accordance with 3GPP® TS38.304, etc.

[0066] In addition, or alternatively, the request / report message may include at least one of the following: a DRX cycle value or eDRX cycle value adopted by user device 102 within and / or outside of the PTW; the start time of the first MO for paging associated with a PO; the number of MOs for paging associated with a PO; the start time of a PF associated with a DRX / eDRX cycle; the start time of each PO associated with a PF; the total number of PFs in a DRX / eDRX cycle; the number of POs for a PF; the start time of a paging hyperframe associated with a PTW; the start time of a PTW within a paging hyperframe; the end time of a PTW; or the duration of a PTW.

[0067] In addition, or alternatively, in some embodiments, the user device 102 may be configured as a PRS receive window for receiving PRS in RRC_IDLE and / or RRC_INACTIVE. The PRS receive window may be adjacent to or aligned with the paging position. To conserve power, the user device 102 may be restricted to receiving PRS only within the PRS receive window. In some embodiments, the user device 102 may report the PRS receive window configuration to the LMF 202 via LPP signaling. This may then allow the user device 102 to conserve power while positioning in the RRC inactive and / or RRC idle state. The report may also allow the LMF 202 and / or NG-RAN node 204 to provide and / or configure an appropriate PRS configuration adjacent to (or within) the PRS receive window of the reported UE in the time domain.

[0068] In addition, or alternatively, in some embodiments, the request / report message may include at least one of the following: the periodicity of the PRS reception window, the time offset between the start time of the PRS reception window and the start time of the DRX cycle to which the PRS reception window belongs, or the length of the PRS reception window.

[0069] In addition, or alternatively, in some embodiments, if the NG-RAN node 204 knows the DRX information, eDRX information, and / or PRS receive window configuration of the user device 102, the NG-RAN node 204 may report or update the DRX information, eDRX information (paging position), and / or PRS receive window configuration of the user device 102 to the LMF 202 via NRPPa signaling or the like. The LMF 202 may then make an on-demand PRS request to the NG-RAN node 204 to initiate the LMF. The signaling procedure may include at least one of the following: the LMF 202 may request the (serving) NG-RAN node 204 to provide support information regarding PRS / DRX alignment; or the (serving) NG-RAN node 204 may provide the LMF 202 with the DRX / eDRX information and / or PRS receive window configuration of the user device. In doing so, the NG-RAN node 204 may report at least one of the following: the DRX cycle values ​​and / or eDRX cycle values ​​adopted by the user device 102 within and / or outside the PTW; the start time of the first MO for paging associated with the PO; the number of MOs for paging associated with the PO; the start time of the PF associated with the DRX / eDRX cycle; the start time of the PO associated with the PF; the total number of PFs in the DRX / eDRX cycle; the number of POs for the PF; the start time of the paging hyperframe associated with the PTW; the start time of the PTW within the paging hyperframe; the end time of the PTW; the duration of the PTW; the periodicity of the PRS receive window; the time offset between the start time of the PRS receive window and the start time of the DRX cycle to which the PRS receive window belongs; or the length of the PRS receive window.

[0070] In addition, or alternatively, in some embodiments, the LMF 202 requests (one or more) NG-RAN nodes 204 to configure a PRS in accordance with an on-demand PRS request initiated by the LMF. The LMF's requests are described in further detail below. In addition, or alternatively, (one or more) NG-RAN nodes 204 may provide the PRS configuration to the LMF 202. In addition, or alternatively, the user device 102 may receive the PRS configuration via the LMF 202 or via broadcast RRC signaling. In addition, or alternatively, the NG-RAN node 204 may transmit a PRS to the user device 102 in accordance with the PRS configuration.

[0071] In addition, or alternatively, if a request message from a user device asking to align to a DRX configuration is received by the LMF202 via LPP signaling or the like, as described above, the LMF202 may take into account the request from user device 102 (assuming there is one or more user devices 102 that have this requirement and send the request). The LMF202 may then determine the final PRS configuration characteristics and request (one or more) NG-RAN nodes 204 to provide the PRS configuration.

[0072] In other embodiments, if the LMF202 receives support information regarding PRS / DRX alignment provided by the (serving) NG-RAN node 204 as described above, the LMF202 may then use the support information to determine the final PRS configuration characteristics, and then the LMF202 may request the (one or more) NG-RAN nodes 204 to provide the PRS configuration.

[0073] In addition, or alternatively, in some embodiments, the NRPPa signaling used to request (one or more) NG-RAN nodes 204 to configure a PRS configuration may include at least one of the following: a list of requested PRS periodicities, a list of requested PRS time offsets, or a list of requested PRS durations. The list of requested PRS periodicities may include one or more requested PRS periodicities. In some embodiments, the PRS periodicities in the list are ordered from highest to lowest. The list of requested PRS time offsets may include one or more requested PRS time offset values, and the list of requested PRS time offsets may be per configured PRS periodicity or per configured requested PRS NRPPa message. Alternatively, the PRS time offsets in the list may be ordered from highest to lowest. A requested PRS duration may be associated with each requested PRS periodicity. Alternatively, a requested PRS duration may be associated with each requested PRS periodicity list. Alternatively, a requested PRS duration may be associated with each requested PRS time offset. Alternatively, the required PRS duration is associated with each required PRS time offset list.

[0074] In addition, or alternatively, LMF202 may send the above request message to multiple NG-RAN nodes 204 that are required to configure and / or transmit DL-PRS.

[0075] In addition, or alternatively, in some embodiments, the LMF202 may transmit the PRS configuration of all TRP208s to multiple NG-RAN nodes 204. In such embodiments, the PRS configuration may enable the multiple NG-RAN nodes 204 to configure and / or determine appropriate DRX configurations aligned with or adjacent to the PRS configuration. In some of these embodiments, when a PRS-enabled area is enabled, the multiple NG-RAN nodes 204 may correspond to cells in the enabled area cell list.

[0076] In another embodiment, if the user device is in an RRC inactive state, the LMF202 may send the PRS configurations of all TRP208s to the last serving NG-RAN node 204. Then, if the user device 102 moves out of the area of ​​the last serving NG-RAN node 204, the last serving NG-RAN node 204 may forward the PRS configurations of all TRP208s to other NG-RAN nodes via the Xn interface. By doing so, the other NG-RAN nodes 204 may configure one or more appropriate DRX configurations for the user device 102.

[0077] In addition, or alternatively, in some embodiments, the RRC_INACTIVE sounding reference signal (SRS) configuration (or SRS resource set, or SRS resource) may be configured for one cell (e.g., a serving cell or a camping cell), for multiple cells within an effective area, or for multiple pre-configured SRS configurations.

[0078] In addition, the SRS may be transmitted by a user device 102 in RRC_INACTIVE mode. The user device 102 may receive a positioning SRS configuration for transmission in RRC_INACTIVE mode. The positioning SRS configuration may include one or more positioning SRS resource sets, each positioning SRS resource set may include one or more positioning SRS resources. Also, in some embodiments, each positioning SRS resource set is associated with a path loss reference signal (RS) which may indicate the power compensation values ​​of all SRS resources within the SRS resource set. The path loss reference RS for positioning the SRS may be an SSB (service-providing cell or neighbor cell) or a DL-PRS.

[0079] In some embodiments, the user device 102 may determine SRS verification in RRC_INACTIVE according to a Reference Signal Received Power (RSRP) criterion. If the RSRP criterion is met and the SRS time alignment timer is operating, the user device 102 may assume that SRS is still valid for transmission. In some embodiments, the RSRP criterion is that the current RSRP value of the downlink path loss criterion has not increased / decreased by an amount exceeding an RSRP threshold (which can be configured by the network 104) compared to a stored downlink path loss criterion RSRP value. If only one SRS resource set is configured in the SRS configuration, the user device 102 may determine that the SRS resource set is valid if the RSRP criterion is met. The user device 102 may determine that the SRS resource set is invalid if the RSRP criterion is not met. However, if one or more SRS resource sets are configured in the SRS configuration, the user device 102 may determine whether the SRS configuration (including one or more SRS resource sets) is still valid according to one or more of the following methods.

[0080] In the first method, each SRS resource set may determine its RSRP criterion individually. If one of the path loss criterion RSRPs in an SRS resource set does not satisfy the RSRP criterion, that SRS resource set is considered invalid, and the user device 102 cannot transmit SRS according to that SRS resource set. On the other hand, if the path loss criterion RSRPs of the other SRS resource sets satisfy the RSRP criterion, the SRS resource set is considered valid, and the user device 102 may transmit SRS according to that SRS resource set. The above situation assumes that the valid time alignment timer is in progress, i.e., the SRS time alignment timer is running.

[0081] In the second method, each SRS resource set may determine its RSRP criterion individually. If the path loss criterion RSRP of one of the SRS resource sets does not meet the RSRP criterion, it is assumed that all SRS resource sets currently configured for user device 102 in the current camping cell are invalid, and user device 102 may stop transmitting all positioning SRS to this current camping cell with RRC_INACTIVE.

[0082] In a third method, user device 102 may first average the RSRPs of one or more path loss criterion RSs associated with one or more SRS resource sets. The calculated RSRPs can then be used with both the stored downlink path loss criterion RSRP values ​​within the RSRP criterion and the current RSRP values ​​of the downlink path loss criterion. For example, a weighted average may be applied to all RSRPs. Each RSRP value is multiplied by a coefficient value. If the RSRPs are derived from the same RS type or the same RS type with the same RS index, the coefficient value can be 1. If the RSRPs are derived from the same RS type with different RS types or different RS indexes, the coefficient value can be less than 1 or greater than 1. The coefficient value can be configured by network 104 (e.g., in a DL RRC message), or the coefficient value can be reported by user device 102 as UE capability, or the coefficient value can be determined according to the capabilities of user device 102, or the coefficient value can be predefined. Next, the user device 102 may use the stored downlink path loss criterion RSRP value and the calculated RSRP value of the downlink path loss criterion to determine whether the RSRP criterion is met, and then determine whether to perform SRS verification.

[0083] In the fourth method, the user device 102 may be restricted to receiving one or more SRS resource sets having the same path loss criterion RS type. For example, the user device 102 may consist of two SRS resource sets with RRC_INACTIVE, and the two SRS resource sets may consist of the same path loss criterion RS type, e.g., DL PRS.

[0084] In the fifth method, the user device 102 may be restricted to receiving one or more SRS resource sets having the same configured path loss criterion RS type and the same configured path loss criterion RS index. For example, the user device 102 may consist of two SRS resource sets with RRC_INACTIVE, and the two SRS resource sets may associate the same path loss criterion RS index, e.g., PRS resource ID2.

[0085] In addition, or alternatively, if user device 102 stops partial or complete SRS transmission in the current camping cell with RRC_INACTIVE while the SRS time alignment timer is still operating (for example, if user device 102 does not meet the RSRP criteria and therefore user device 102 may still be in an active area or the last serving cell), user device 102 may perform at least one of the following actions: user device 102 stops the SRS time alignment timer; in addition, or alternatively, user device 102 assumes the SRS time alignment timer has expired at this time; in addition, or alternatively, user device 102 notifies network 104 that the SRS configuration is invalid for the current cell. Indications from user device 102 to network 104 can be UL RRC messages, such as RRCResumeRequest messages, or RRCResumeRequest1 messages, or RRCSystemInfoRequest (in Msg3 or MsgB), UEPositioningAssistanceInfo, UEAssistanceInformation, or ULInformationTransfer, DedicatedSIBRequest. In addition, or alternatively, user device 102 may indicate an SRS configuration request to network 104.

[0086] In some embodiments, the user device 102 and / or the network 104 may use an RSRP threshold for selecting one or more sets of random access resources having Msg1 repetitions. The RSRP threshold for selecting one or more sets of random access resources having Msg1 repetitions may be configured according to one or more of the following schemes:

[0087] In the first method, multiple RSRP thresholds may be configured, each threshold associated with a number of repetitions. If the current RSRP of the downlink path loss criterion is lower than the multiple thresholds used for Msg1 repetitions, the corresponding Msg1 repetition is applicable to the current random access procedure. User device 102 may select a random access resource set with the highest possible number of repetitions if multiple random access resource sets are available for any feature applicable to the current random access procedure.

[0088] In the second method, only one RSRP threshold is configured. If the current RSRP of the downlink path loss criterion is lower than the threshold used for Msg1 repetitions, user device 102 may initially select the lowest number of repetitions. When the preamble transmission counter during the current random access procedure reaches a predetermined value, user device 102 may use a higher number of repetitions up to the maximum number of repetitions.

[0089] In addition, in any of the various embodiments, (one or more) thresholds may be configured for each BWP or for each feature combination.

[0090] In addition, in some embodiments, the Msg1 repeating feature indication may be configured according to one or more of the following methods.

[0091] In the first method, Msg1 repeats with different numbers of repetitions are treated as independent features. Figure 9 shows a diagram illustrating the total number of preambles, illustrating Msg1 repeats with different numbers of repetitions.

[0092] In the second approach, Msg1 repeats with different numbers of repetitions are treated as a single feature. In this case, the preamble can be further divided for different numbers of repetitions.

[0093] The above description and accompanying drawings provide specific exemplary embodiments and implementations. However, the described subject matter may be embodied in a variety of different forms, and it is intended that the subject matter covered or claimed is not limited to any exemplary embodiments described herein. A reasonably broad range of the claimed or covered subject matter is intended. In particular, for example, the subject matter may be embodied as a method, device, component, system, or non-temporary computer-readable medium for storing computer code. Thus, embodiments may take the form of, for example, hardware, software, firmware, storage medium, or any combination thereof. For example, an embodiment of the method described above may be implemented by a component, device, or system including memory and a processor by executing computer code stored in memory.

[0094] Throughout this specification and the claims, terms may have nuances implied or suggested in context beyond their expressly stated meanings. Similarly, the phrase “in one embodiment / implementation” as used herein does not necessarily refer to the same embodiment, and the phrase “in another embodiment / implementation” as used herein does not necessarily refer to a different embodiment. For example, the claimed subject matter is intended to encompass, in whole or in part, a combination of exemplary embodiments.

[0095] In general, terms can be understood at least partially from their usage in context. For example, terms such as “and,” “or,” or “and / or” as used herein may have various meanings that may at least partially depend on the context in which such terms are used. Typically, when “or” is used to relate a list such as A, B, or C, it is intended to mean A, B, and C in an inclusive sense, as well as A, B, or C in an exclusive sense. In addition, the terms “one or more” as used herein may, at least partially depending on the context, be used to describe any feature, structure, or characteristic in a singular sense, or to describe a combination of features, structures, or characteristics in a plural sense. Similarly, terms such as “a,” “an,” or “the” may, at least partially depending on the context, be understood to convey either a singular or a plural usage. Furthermore, the term "based on" may be understood not necessarily as intended to convey an exclusive set of factors, but rather, depending at least partially on the context, may allow for the presence of additional factors that are not necessarily explicitly explained.

[0096] Throughout this specification, references to features, benefits, or similar terms do not imply that all features and benefits that may be realized by the Solution should be included in any single implementation thereof. Rather, any terms referring to features and benefits should be understood to mean that certain features, benefits, or characteristics described in relation to an embodiment are included in at least one embodiment of the Solution. Thus, discussions of features and benefits, as well as similar terms, throughout this specification may, but not necessarily, refer to the same embodiment.

[0097] Furthermore, the described features, advantages, and characteristics of this solution may be combined in any suitable manner in one or more embodiments. Those skilled in the art will recognize, in light of the description herein, that this solution can be implemented without one or more of the specific features or advantages of a particular embodiment. In other examples, additional features and advantages that may not be present in all embodiments of this solution may be recognized in a particular embodiment. The subject matter of this disclosure may also relate to or include, among other things, the following aspects:

[0098] A first aspect of a method for wireless communication includes transmitting alignment information to a location management function (LMF) by a user device, wherein the alignment information comprises at least one of a positioning reference signal (PRS) time offset, PRS duration, PRS period index, one or more PRS periodicities, discontinuous reception (DRX) configuration, extended DRX (eDRX) configuration, paging time window (PTW) configuration, or PRS reception window configuration, and the user device receiving a PRS configuration from the LMF in accordance with the alignment information.

[0099] A second aspect includes a method for wireless communication comprising: receiving alignment information from a user device by a position management function (LMF), wherein the alignment information comprises at least one of the following: a positioning reference signal (PRS) time offset, PRS duration, PRS period index, one or more PRS periodicities, a discontinuous reception (DRX) configuration, an extended DRX (eDRX) configuration, a paging time window (PTW) configuration, or a PRS reception window configuration; and transmitting a PRS configuration according to the alignment information to the user device by the LMF.

[0100] A third aspect includes either the first or second aspect, further comprising transmitting alignment information to a radio access network (RAN) node via the LMF.

[0101] A fourth aspect includes any of the first to third aspects, further comprising: the PRS time offset comprising one or more PRS time offset values ​​associated with each of the one or more PRS periodicities.

[0102] A fifth aspect comprises any of the first to fourth aspects, further comprising the PRS duration comprising one or more PRS duration values ​​associated with each of the one or more PRS periodicities.

[0103] A sixth aspect includes any of the first to fifth aspects, further comprising: a PRS periodic index comprising at least one of a first PRS periodic index or a second PRS periodic index, wherein the first PRS periodic index is used to indicate the number of PRS periods, the second PRS periodic index is used to indicate the index of a PRS period among the PRS periods, and the first PRS periodic index and the second PRS periodic index are associated with each PRS periodicity of one or more PRS periodicities.

[0104] The seventh aspect further includes any of the first to sixth aspects, wherein at least one of the one or more PRS periodicities is greater than 10,240 milliseconds.

[0105] The eighth aspect includes any of the first to seventh aspects, further comprising: transmitting alignment information by a user device transmitting one or more PRS periodics associated with a PTW configuration to the LMF, wherein at least one of the one or more PRS periodics is determined according to a paging position within the PTW, and at least one other of the one or more PRS periodics is determined according to a paging position outside the PTW.

[0106] The ninth aspect includes any of the first to eighth aspects, further comprising one or more PRS periodicities comprising a list of PRS periodicity values ​​ordered from highest priority to lowest priority.

[0107] A tenth aspect includes any of the first to ninth aspects, further comprising the PRS time offset comprising at least one of the hyperframe offset, wireless frame offset, subframe offset, slot offset, or symbol offset.

[0108] An eleventh aspect includes any of the first to tenth aspects, further comprising: a DRX or eDRX configuration comprising: a DRX cycle value or eDRX cycle value in which the user device adopts at least one of being inside or outside a PTW; a start time of a first physical downlink control channel (PDCCH) monitoring opportunity for paging associated with a paging opportunity (PO); a number of PDCCH monitoring opportunities for paging associated with a paging opportunity (PO); a start time of a paging frame (PF) associated with a DRX cycle or eDRX cycle; a start time of a PO associated with a PF; a total number of PFs within a DRX cycle or eDRX cycle; a number of POs in a PF; a start time of a paging hyperframe associated with a PTW; a start time of a PTW within a paging hyperframe; an end time of a PTW within a paging hyperframe; or a duration of a PTW within a paging hyperframe.

[0109] A twelfth aspect includes any of the first to eleventh aspects, further comprising the PRS receive window configuration having at least one of the periodicity of the PRS receive window, a time offset between the start time of the PRS receive window and the start time of the DRX cycle or eDRX cycle to which the PRS receive window belongs, or the length of the PRS receive window.

[0110] A thirteenth aspect includes a method for wireless communication comprising: receiving a request for alignment information from a location management function (LMF) via a radio access node (RAN) node, wherein the alignment information comprises at least one of a discontinuous reception (DRX) configuration, an extended DRX (eDRX) configuration, or a positioning reference signal (PRS) reception window configuration; reporting the alignment information to the LMF via the RAN node; and transmitting a PRS corresponding to the alignment information to a user device via the RAN node.

[0111] A fourteenth aspect includes a thirteenth aspect, further comprising a RAN node comprising a serving RAN node for user devices.

[0112] A 15th embodiment includes a wireless communication device comprising a processor and memory, wherein the processor is configured to read code from memory to implement any of the first to 14th embodiments.

[0113] The sixteenth aspect includes a computer program product comprising a computer-readable program medium having stored code, wherein the code, when executed by a processor, causes the processor to implement any of the first to fourteenth aspects.

[0114] In addition to the features mentioned in each of the independent embodiments listed above, some examples, either alone or in combination, may exhibit optional features mentioned in the dependent embodiments and / or disclosed in the above description and shown in the figures.

Claims

1. A method for wireless communication, wherein the method is The user device transmits alignment information to the Local Management Function (LMF), wherein the alignment information comprises at least one of the following: positioning reference signal (PRS) time offset, PRS duration, PRS period index, one or more PRS periodicities, discontinuous reception (DRX) configuration, extended DRX (eDRX) configuration, paging time window (PTW) configuration, or PRS reception window configuration. The user device receives a PRS configuration from the LMF according to the alignment information. Methods that include...

2. A method for wireless communication, wherein the method is The Location Management Function (LMF) receives alignment information from a user device, wherein the alignment information comprises at least one of the following: positioning reference signal (PRS) time offset, PRS duration, PRS period index, one or more PRS periodicities, discontinuous reception (DRX) configuration, extended DRX (eDRX) configuration, paging time window (PTW) configuration, or PRS reception window configuration. The LMF transmits the PRS configuration according to the alignment information to the user device. Methods that include...

3. The LMF transmits the alignment information to the wireless access network (RAN) node. The method according to either claim 1 or 2, further comprising:

4. The method according to claim 1 or 2, wherein the PRS time offset comprises one or more PRS time offset values ​​associated with each of the one or more PRS periodicities.

5. The method according to claim 1 or 2, wherein the PRS duration comprises one or more PRS duration values ​​associated with each of the one or more PRS periodicities.

6. The PRS period index comprises at least one of a first PRS period index or a second PRS period index, the first PRS period index being used to indicate the number of PRS periods, and the second PRS period index being used to indicate the index of a PRS period among the multiple PRS periods. The method according to claim 1 or 2, wherein the first PRS periodic index and the second PRS periodic index are associated with each of the one or more PRS periodicities.

7. The method according to either claim 1 or 2, wherein at least one of the one or more PRS periodicities is greater than 10,240 milliseconds.

8. Transmitting the aforementioned alignment information means The user device transmits to the LMF one or more PRS periodics associated with the PTW configuration, wherein at least one of the one or more PRS periodics is determined according to the paging position within the PTW, and at least one other of the one or more PRS periodics is determined according to the paging position outside the PTW. The method according to claim 1, including the method described in claim 1.

9. The method according to claim 1 or 2, wherein the one or more PRS periodicities comprises a list of PRS periodicity values ​​ordered from highest priority to lowest priority.

10. The method according to claim 1 or 2, wherein the PRS time offset comprises at least one of a hyperframe offset, a wireless frame offset, a subframe offset, a slot offset, or a symbol offset.

11. The method according to claim 1 or 2, wherein the DRX configuration or the eDRX configuration comprises a DRX cycle value or an eDRX cycle value adopted by the user device either within or outside the PTW, a start time of a first physical downlink control channel (PDCCH) monitoring opportunity for paging associated with a paging opportunity (PO), a number of PDCCH monitoring opportunities for paging associated with a paging opportunity (PO), a start time of a paging frame (PF) associated with a DRX cycle or eDRX cycle, a start time of a PO associated with a PF, a number of PFs within a DRX cycle or eDRX cycle, a number of POs in a PF, a start time of a paging hyperframe associated with a PTW, a start time of a PTW within a paging hyperframe, an end time of a PTW within a paging hyperframe, or a duration of a PTW within a paging hyperframe.

12. The method according to claim 1 or 2, wherein the PRS receiving window configuration comprises at least one of the periodicity of the PRS receiving window, a time offset between the start time of the PRS receiving window and the start time of the DRX cycle or eDRX cycle to which the PRS receiving window belongs, or the length of the PRS receiving window.

13. A method for wireless communication, wherein the method is A wireless access node (RAN) node receives a request for alignment information from a location management function (LMF), wherein the alignment information comprises at least one of the following: a discontinuous reception (DRX) configuration, an extended DRX (eDRX) configuration, or a positioning reference signal (PRS) reception window configuration. The RAN node reports the alignment information to the LMF, The RAN node transmits the PRS corresponding to the alignment information to the user device. Methods that include...

14. The method according to claim 13, wherein the RAN node comprises a serving RAN node for the user device.

15. A wireless communication device comprising a processor and memory, wherein the processor is configured to read code from the memory in order to implement the method according to any one of claims 1 to 14.

16. A computer program product comprising a computer-readable program medium having stored code, wherein the code, when executed by a processor, causes the processor to implement the method according to any one of claims 1 to 14.

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