Wireless communication method and communication device

Abstract

The invention provides a wireless communication method and a communication device. The method comprises: a positioning device in a core network receiving first information associated with DRX (S410); the positioning device determines a transmission time of a first signal according to the first information (S420), the first signal being a reference signal for positioning, the transmission time of the first signal being within a first time period; wherein the first time period corresponds to the activation time of the DRX; alternatively, the first time period corresponds to a possible activation time of the DRX.

Description

[0001] This application is a divisional application based on the parent patent application with application number 202180016435.3 and application date December 23, 2021. The entire contents of the parent patent application are incorporated into this application by reference. Technical Field

[0002] The present application relates to the field of communication technology, and more specifically, to a wireless communication method and a communication device. Background Art

[0003] According to the current protocol, the discontinuous reception (DRX) mode of the terminal device and the positioning measurement are designed independently of each other. The independent design of the DRX mode and the positioning measurement will cause power consumption problems. Summary of the invention

[0004] In order to solve the above problems, the present application provides a wireless communication method and a communication device.

[0005] In a first aspect, a method for wireless communication is provided, comprising: if a first time period overlaps with a measurement gap, determining that the measurement gap is a valid measurement gap; and / or, if the first time period does not overlap with the measurement gap, determining that the measurement gap is an invalid measurement gap; wherein the first time period includes one or more of the following times: a setting time of a discontinuous reception DRX duration timer; a DRX activation time; a time determined based on the setting time of the DRX duration timer and a time offset value; and a time determined based on the DRX activation time and the time offset value.

[0006] In a second aspect, a method for wireless communication is provided, including: a terminal device or a base station sends first information associated with discontinuous reception DRX to a positioning device in a core network; wherein the first information is used to determine the transmission or measurement time of a first signal, the first signal is a reference signal for positioning, and the transmission time of the first signal is within a first time period; wherein the first time period corresponds to the activation time of the DRX; or, the first time period corresponds to the possible activation time of the DRX; if the first time period overlaps with the measurement gap, determining that the measurement gap is a valid measurement gap; and / or if the first time period does not overlap with the measurement gap, determining that the measurement gap is an invalid measurement gap; wherein the first time period includes one or more of the following times: the setting time of the discontinuous reception DRX duration timer; the DRX activation time; the time determined based on the setting time of the DRX duration timer and the time offset value; and the time determined based on the DRX activation time and the time offset value.

[0007] According to a third aspect, a communication device is provided, comprising: a determination module, configured to determine that a first time period is a valid measurement gap if there is an overlap between the first time period and the measurement gap; and / or to determine that the measurement gap is an invalid measurement gap if the first time period does not overlap with the measurement gap; wherein the first time period includes one or more of the following times: a setting time of a discontinuous reception DRX duration timer; a DRX activation time; a time determined based on the setting time of the DRX duration timer and a time offset value; and a time determined based on the DRX activation time and a time offset value.

[0008] According to a fourth aspect, a communication device is provided, which is a terminal device or a base station, and includes: a sending module, used to send first information associated with discontinuous reception DRX to a positioning device in a core network; wherein the first information is used to determine the transmission or measurement time of a first signal, the first signal is a reference signal for positioning, and the transmission time of the first signal is within a first time period; wherein the first time period corresponds to the activation time of the DRX; or, the first time period corresponds to the possible activation time of the DRX; if the first time period overlaps with the measurement gap, it is determined that the measurement gap is a valid measurement gap; and / or if the first time period does not overlap with the measurement gap, it is determined that the measurement gap is an invalid measurement gap; wherein the first time period includes one or more of the following times: the setting time of the discontinuous reception DRX duration timer; the DRX activation time; the time determined based on the setting time of the DRX duration timer and the time offset value; and the time determined based on the DRX activation time and the time offset value.

[0009] According to a fifth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 4 is a system architecture diagram of a communication system to which the embodiments of the present application can be applied.

[0011] Figure 2 is based on Figure 1 A schematic diagram of a communication system performing positioning measurements is shown.

[0012] Figure 3 It is a schematic diagram of the DRX cycle.

[0013] Figure 4 It is a flowchart of the wireless communication method provided in Example 1.

[0014] Figure 5 It is a flowchart of the wireless communication method provided in Example 2.

[0015] Figure 6 It is a flowchart of the wireless communication method provided in Example 3.

[0016] Figure 7 It is a structural diagram of a communication device provided by an embodiment of the present application.

[0017] Figure 8 It is a structural diagram of a communication device provided in another embodiment of the present application.

[0018] Fig. 9 It is a structural diagram of a communication device provided in yet another embodiment of the present application.

[0019] Fig.10 It is a structural diagram of a communication device provided in yet another embodiment of the present application.

[0020] Fig.11 It is a structural diagram of a communication device provided in yet another embodiment of the present application.

[0021] Fig.12 It is a schematic diagram of the structure of the device provided in this application. DETAILED DESCRIPTION

[0022] Communication System

[0023] Figure 1 The wireless communication system 100 to which the embodiment of the present application can be applied may include a base station 110 and a terminal device 120. The base station 110 may be a device that communicates with the terminal device 120. The base station 110 may provide communication coverage for a specific geographical area, and may communicate with the terminal device 120 located in the coverage area.

[0024] Figure 1 One base station and two terminals are shown exemplarily. Optionally, the wireless communication system 100 may include multiple base stations and each base station may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0025] Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0026] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: the fifth generation (5th generation, 5G) system or new radio (new radio, NR), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), etc. The technical solutions provided by the present application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, and so on.

[0027] The terminal device in the embodiment of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, and can be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiment of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using a sidelink signal. The cellular phone and the smart home device communicate with each other without relaying the communication signal through the base station.

[0028] The base station in the embodiment of the present application may be a device for communicating with a terminal device, and the base station may also be referred to as an access network device or a radio access network device. The base station in the embodiment of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. A base station may broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, base band unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. The base station may also refer to a communication module, modem or chip used to be set in the aforementioned device or apparatus. The base station may also be a mobile switching center and a device to device D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication device that performs the base station function, a network side device in a 6G network, and a device that performs the base station function in a future communication system. The base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the base station.

[0029] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0030] In some deployments, the base station in the embodiments of the present application may refer to a CU or a DU, or the base station includes a CU and a DU. The gNB may also include an AAU.

[0031] Base stations and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons, and satellites in the air. The scenarios in which the base stations and terminal devices are located are not limited in the embodiments of the present application.

[0032] Positioning Technology in Communication Systems

[0033] See also Figure 2 , the communication system 100 may also include a positioning device 130. The positioning device 130 may be used to determine the location information of the terminal device. The positioning device 130 may be located in the core network. The positioning device 130 may sometimes also be referred to as a positioning server. Taking the NR system as an example, the positioning device 130 may be a location management function (LMF). Taking other communication systems as examples, the positioning device 130 may be a location management unit (LMU), a location management center (LMC) or an evolved serving mobile location center (E-SMLC). It is understandable that the positioning device 130 may also be other network elements, nodes or devices for determining the location information of the terminal device, such as a network element or node for determining the location information of the terminal device in a future communication system. The embodiment of the present application does not specifically limit the name of the positioning device.

[0034] Positioning in the communication system 100 includes uplink positioning and downlink positioning. Some communication systems (such as NR systems) perform downlink positioning based on a positioning reference signal (PRS). PRS, also known as a downlink positioning reference signal (DL-PRS), is a reference signal used for positioning functions. For example, in the downlink positioning process, the terminal device 120 can first measure the PRS sent by the serving cell and the neighboring cell (or adjacent cell), and estimate the relevant information of the positioning measurement. Then, the terminal device 120 can report the relevant information of the positioning measurement as the measurement result of the PRS to the positioning device 130. The positioning device 130 can solve the position of the terminal device 120 according to the positioning measurement related information reported by the terminal device 120, thereby obtaining the position information of the terminal device 120. For example, the positioning device 130 can calculate the position information of the terminal device 120 based on the three-sided positioning method or the triangulation positioning method.

[0035] Some communication systems (such as NR systems) perform uplink positioning based on SRS. For example, during the uplink positioning process, the terminal device 120 sends an SRS. The base station 110 (the base station of the serving cell and the base station of the neighboring cell) can obtain a measurement result based on the SRS sent by the terminal. The measurement result of the SRS may include relevant information of the positioning measurement. Then, the base station 110 may send the relevant information of the positioning measurement to the positioning device 130. The positioning device 130 may solve the position of the terminal device 120 based on the positioning measurement related information reported by the base station 110, thereby obtaining the position information of the terminal device 120. For example, the positioning device 130 may calculate the position information of the terminal device 120 based on the three-sided positioning method or the triangulation positioning method.

[0036] The above-mentioned related information of the positioning measurement may include one or more of the following information: time information, distance information, power information, angle information. More specifically, the related information of the positioning measurement may include one or more of the following information: time difference of arrival (TDOA), angle difference of arrival (ADOA), reference signal receive power (RSRP), etc.

[0037] DRX Mode

[0038] Figure 3 is a schematic diagram of a DRX cycle. Figure 3 As shown, T1 is the wake-up time of the terminal device, or DRX on duration, and T2 is the sleep time of the terminal device, or DRX opportunity.

[0039] The duration of the wake-up time of the terminal device can be controlled by the DRX duration timer (drx-onDurationTimer). The timing duration of the DRX duration timer is T1. The terminal device needs to continuously monitor the physical downlink control channel (PDCCH) during the wake-up time T1, and does not need to monitor the PDCCH during the sleep time T2. It can be understood that the longer the T2 time is, the lower the energy consumption of the terminal device.

[0040] from Figure 3It can be seen that for a long DRX cycle, the terminal device wakes up less frequently, so it is more power-saving for the terminal device; while for a short DRX cycle, the terminal device wakes up more frequently, which increases the energy consumption of the terminal device, but can increase the probability of the base station successfully scheduling the terminal device and reduce data transmission delay.

[0041] Each medium access control (MAC) entity corresponds to a DRX configuration. The DRX configuration may include the above-mentioned DRX duration timer. In addition, the DRX configuration may also include other DRX timers, which are used together to adjust the wake-up time of the terminal device.

[0042] The other DRX timers mentioned here may include, for example, one or more of the following timers: DRX deactivation timer (drx-InactivityTimer), short DRX cycle timer (drx-ShortCycleTimer), DRX downlink retransmission timer (drx-RetransmissionTimerDL), DRX downlink hybrid automatic repeat request (hybrid automaticrepeat reQuest, HARQ) round-trip time (round-trip time, RTT) timer (HARQ-RTT-TimerDL).

[0043] The DRX deactivation timer can indicate how long the terminal device needs to continue monitoring after successfully detecting the PDCCH. The short DRX cycle timer can indicate how long the terminal device continues to follow the short DRX cycle. The DRX downlink retransmission timer can be used for the terminal device to receive downlink retransmission scheduling. This timer can indicate the length of time the terminal device needs to continuously monitor in order to receive the expected downlink retransmission scheduling. The DRX downlink hybrid automatic repeat request round-trip time (RTT) timer (HARQ-RTT-TimerDL) is used for the terminal device to receive downlink retransmission scheduling, indicating the length of time the terminal device needs to wait before receiving the expected downlink retransmission scheduling.

[0044] In addition, the base station can also configure other DRX parameters for the terminal device, such as short DRX cycle, long DRX cycle, DRX start subframe offset (drx-LongCycleStartOffset), DRX time slot offset (drx-SlotOffset), etc.; and configure other DRX timers, such as random access contention resolution timer (ra-ContentionResolutionTimer), DRX uplink retransmission timer (drx-RetransmissionTimerUL), DRX uplink HARQ round-trip time timer (HARQ-RTT-TimerUL), etc.

[0045] In the DRX mechanism, the configuration of the long DRX cycle can be a default configuration, and the configuration of the short DRX cycle can be an optional configuration. For a terminal device configured with a short DRX cycle, the long DRX cycle and the short DRX cycle can be converted in the following ways:

[0046] When any of the following conditions is met, the terminal device uses a short DRX cycle: 1. The DRX deactivation timer (drx-InactivityTimer) times out; 2. The terminal device receives a DRX command MAC CE (DRX Command MAC CE);

[0047] When any of the following conditions is met, the terminal device uses a long DRX cycle: 1. The short DRX cycle timer (Drx-shortCycleTimer) times out; 2. The terminal device receives a long DRX command MCA CE (long DRX command MAC CE).

[0048] Regardless of whether it is a long DRX cycle or a short DRX cycle, if one or more of the following situations occurs, the terminal device is in a DRX activation state (sometimes also referred to as a DRX on state), and the time corresponding to the DRX activation state can be referred to as the DRX activation time (active time).

[0049] Case 1: any one of the DRX duration timer, DRX deactivation timer, DRX downlink retransmission timer, DRX uplink retransmission timer and random access contention resolution timer is running;

[0050] Case 2: The terminal device sends a scheduling request (SR) on the PUCCH and is pending.

[0051] Case 3: There is data in the HARQ buffer of the terminal device and the terminal device is waiting for an uplink grant (UL grant) for HARQ retransmission.

[0052] Case 4: The terminal device successfully receives a random access response (RAR) in response to a preamble that is not selected by the MAC entity, but does not receive a PDCCH indicating an initial transmission using the cell radio network temporary identifier (C-RNTI) of the MAC entity.

[0053] In the DRX cycle, except for the DRX activation time, the remaining time can be called the DRX deactivation time (inactive time) or sleep time. During the sleep time, the terminal device is in a sleep state (sometimes also called a DRX off state).

[0054] Positioning in DRX mode

[0055] When the terminal device is in a dormant state, the current protocol stipulates that the terminal device is not allowed to send periodic SRS and semi-persistent SRS, but can send non-periodic SRS. In addition, when the terminal device is in a dormant state, the current protocol does not restrict the terminal device from measuring PRS. It can be seen that even in a dormant state, the terminal device can send SRS (such as non-periodic SRS) for uplink positioning, and can also measure PRS for downlink positioning. It can be seen that according to the current protocol, the DRX mode and uplink and downlink positioning are designed independently of each other. In other words, at present, the positioning process of the communication system is not designed from the perspective of energy saving. The independent design of the DRX mode and positioning measurement will cause communication problems, such as power consumption or delay problems. Therefore, how the DRX mode and positioning measurement should be coordinated is an issue that needs to be solved urgently. The following combines multiple embodiments to solve the above problems from different angles.

[0056] Wake-up signal

[0057] In order to further save energy on terminal devices, some communication systems (such as NR Rel-16) have introduced a wake-up mechanism based on a wake-up signal (or energy-saving wake-up signal). The wake-up signal can be used in combination with the DRX mechanism. For example, the terminal device can receive a wake-up signal before the DRX on duration. If the terminal device has data transmission in a DRX cycle, the wake-up signal can wake up the terminal device so that the terminal device detects the PDCCH during the DRX on duration. If the terminal device has no data transmission in a DRX cycle, the wake-up signal may not wake up the terminal device. In this case, the terminal device may not start the DRX duration timer, so that there is no need to detect the PDCCH. It can be seen that the introduction of the wake-up signal allows the terminal device to omit the PDCCH detection during one or some DRX on durations, thereby achieving further energy saving. It should be noted that in an embodiment of the present application, if the communication system supports the wake-up mechanism, the terms "wake-up state" and "activation state", as well as the terms "wake-up time" and "activation time" can be used interchangeably according to the specific context.

[0058] Embodiment 1

[0059] As mentioned above, in the current protocol, the DRX mode and uplink and downlink positioning are designed independently of each other, which means that even if the terminal device enters a sleep state, it may be awakened, which will increase the power consumption of the terminal device. For example, after the terminal device enters a sleep state, the terminal device may need to wake up from the sleep state, complete uplink / downlink synchronization, and then send an SRS for positioning, or receive a PRS, which prevents the terminal device from entering a deep sleep state. Embodiment 1 aims to avoid waking up the terminal device from a sleep state as much as possible to reduce the power consumption of the terminal device. Figure 4 , a more detailed example is given for the first embodiment.

[0060] Figure 4 This is the wireless communication method provided in Example 1 of the present application. Figure 4 The method is described from the perspective of the interaction between the positioning device and the base station (or terminal device). The relevant description of the terminal device, base station and positioning device can be found in the previous text. Taking the NR system as an example, the base station can be a gNB and the positioning device can be an LMF.

[0061] like Figure 4 As shown, in step S410, the base station (or terminal device) sends the first information to the positioning device. Taking the base station sending the first information to the positioning device as an example, the base station can send the first information through NRPPa signaling. Taking the terminal device sending the first information to the positioning device as an example, the terminal device can send the first information through LPP signaling.

[0062] The first information may be associated with DRX. The first information may be information for each terminal device, or may be statistical information of multiple terminal devices in a cell where the terminal device is located.

[0063] The first information can be used to determine the activation time of DRX (or the possible activation time of DRX, which can also be referred to as the potential activation time of DRX). The embodiment of the present application does not specifically limit the content of the first information, which can be any type of information that helps the positioning device determine the DRX activation time (or the possible activation time of DRX). As an example, the first information can be a parameter of a DRX duration timer and / or a DRX deactivation timer. As another example, the first information can directly indicate the activation time (or possible activation time) of DRX. For example, the first information can directly indicate the starting time and duration of the DRX activation time.

[0064] Continue to see Figure 4 , in step S420, the positioning device determines the transmission time of the first signal according to the first information. The first signal is a signal used for positioning (or positioning the terminal device). The first signal may be a reference signal (or positioning pilot). The reference signal may include an uplink positioning reference signal and / or a downlink positioning reference signal. The uplink positioning reference signal may include an SRS, for example. The downlink positioning reference signal may include a PRS, for example. Taking SRS as an example, the first signal may be a non-periodic SRS and / or a periodic SRS. Taking PRS as an example, the first signal may be a non-periodic PRS, a periodic PRS, and / or an on-demand PRS. If standing from the perspective of a terminal or a base station, the first information is used to determine the transmission or measurement time of the first signal. For example, taking uplink positioning as an example, the first information may be used to determine the transmission time of the first signal (such as SRS). For another example, taking downlink positioning as an example, the first information may be used to determine the measurement time of the first signal (such as PRS).

[0065] The positioning device may determine the transmission time of the first signal according to the first information. The transmission time of the first signal may be within the first time period. The first time period may be associated with one or more of the following information: DRX activation time, DRX possible activation time, DRX duration timer, DRX deactivation timer, and wake-up signal.

[0066] In some embodiments, the first time period may correspond to the activation time of the DRX. For example, the first time period may be within the time corresponding to the activation time of the DRX.

[0067] In some other embodiments, the first time period may correspond to a possible activation time of DRX. For example, the first time period may be within a possible activation time of DRX. The possible activation time of DRX may include one or more of the following: a setting time of a DRX duration timer; and a time determined based on the setting time of the DRX duration timer and the length of the DRX deactivation timer.

[0068] The above-mentioned "setting time of the DRX duration timer" and "time determined based on the setting time of the DRX duration timer and the length of the DRX deactivation timer" and why these times are possible activation times of DRX are explained in detail below.

[0069] The setting time of the DRX duration timer may include: the operable time of the DRX duration timer (the operable time may be set by the protocol), and the operable time has nothing to do with whether the wake-up signal (such as PS-RNTI encrypted DCI) indicates that the terminal device is awake. In other words, the DRX duration timer is set by the protocol, and the operable time of the DRX duration timer does not change dynamically regardless of whether the wake-up signal indicates that the terminal device needs to wake up in the subsequent DRX cycle. In other words, the setting time of the DRX duration timer may be the activation time of the DRX, or it may not be the activation time of the DRX. For example, if the system is configured with a wake-up signal, and the wake-up signal indicates that the terminal device does not need to wake up, the DRX duration timer will not be run, and the setting time of the DRX duration timer does not belong to the activation time of the DRX; for another example, if the system is not configured with a wake-up signal, or if the system is configured with a wake-up signal, and the wake-up signal indicates that the terminal device needs to wake up, the setting time of the DRX duration timer belongs to the activation time of the DRX.

[0070] The length of the DRX deactivation timer is predictable. However, the starting point of the DRX deactivation timer will change according to the incoming packet situation and is difficult to determine in advance. Therefore, the time determined based on the setting time of the DRX duration timer and the length of the DRX deactivation timer (such as adding the length of the DRX deactivation timer to the setting time of the DRX duration timer) may belong to the DRX activation time, or may not belong to the DRX activation time.

[0071] In some embodiments, the first time period may include one or more of the following: a preset time window; a time determined based on the setting time of the DRX duration timer; a time determined based on the setting time of the DRX duration timer and a time offset value; a time determined based on the length of the DRX deactivation timer; a time determined based on the length of the DRX deactivation timer and a time offset value; a time determined based on a possible activation time of DRX; and a time determined based on a possible activation time of DRX and a time offset value.

[0072] As mentioned above, the terminal device will wake up at the DRX activation time. After waking up, the various components of the terminal device will enter the working state. At this time, positioning measurements or sending SRS for positioning will not occupy the sleep time of the terminal device, and no additional synchronization is required for positioning measurements (to wake up during sleep time, the terminal device and the base station need to be synchronized first). However, the starting and ending points of the DRX activation time will change according to the incoming packet situation and the wake-up signal, and are difficult to determine in advance. An embodiment of the present application proposes to determine a period of time (i.e., the first period mentioned above) based on the DRX parameters. This period of time can be determined in advance and can be used to perform positioning measurements or send SRS for positioning.

[0073] In some embodiments, the above time offset value is predefined by a protocol or configured by a base station.

[0074] In some embodiments, the time offset value may be determined based on the length of the DRX deactivation timer. Alternatively, the time length of the time offset value may be associated with the length of the DRX deactivation timer. Alternatively, the length of the time offset value may match the length of the DRX deactivation timer.

[0075] In some embodiments, the first time period includes part or all of the time in the setting time of the DRX duration timer; or, in some embodiments, the start time of the first time period is after the setting time of the DRX duration timer ends.

[0076] As an example, if the first time period is determined according to the setting time of the DRX duration timer, the start time of the first time period may be offset by a time after the end of the DRX duration. The offset time may be defined by the time offset value mentioned above. The length of the time offset value may be configured by a high level, or may be determined based on the length of the DRX deactivation timer. The advantage of the above configuration method for the first time period is that the positioning measurement does not cover the setting time of the DRX duration timer. During the setting time of the DRX duration timer, the base station and the terminal device may send and receive data, and the DRX duration timer may enter a running state. After the DRX duration timer ends, a certain amount of time may be reserved so that the base station and the terminal device may complete the data transmission and reception of this DRX cycle. As an example, the time corresponding to the time offset value may be equivalent to the length of the DRX deactivation timer.

[0077] In some embodiments, when the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the terminal device may still perform positioning measurements or send SRS according to the first time period.

[0078] In some embodiments, when the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the time of the positioning measurement and SRS may be independent of the setting time of the DRX duration timer. For example, the start time of the first period (i.e., the time of the positioning measurement) may be close to the reception time of the wake-up signal, so that the terminal device can perform the positioning measurement immediately after receiving the wake-up signal, thereby reducing the wake-up time of the terminal device and saving power consumption.

[0079] In some embodiments, when the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the first signal is not transmitted in the first time period. In other words, when the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the terminal device may not perform positioning measurements or SRS transmission in the first time period. In some embodiments, whether the terminal device performs positioning measurements or SRS transmission in the first time period can be notified by high-level signaling.

[0080] If the wake-up signal instructs the terminal device to sleep in the following DRX cycle, the terminal device does not enter the activation time, so the first period does not belong to the activation time. Even if the first period does not belong to the activation time, the protocol may stipulate that the terminal device still performs positioning measurements or SRS transmission in the first period. The advantage of this is that the terminal device has already woken up and completed synchronization when receiving the wake-up signal. Since the first period is usually very close to the reception time of the wake-up signal, the terminal device may still be in a synchronized state. Positioning processing in the first period does not require additional synchronization, thereby saving power consumption.

[0081] As mentioned above, when the first period is not the activation time, the protocol may stipulate that the terminal device still performs positioning measurements or SRS transmission in the first period. When the positioning service latency requirement is not high, due to the high complexity of positioning processing, the terminal device has more modules involved in positioning. In order to save energy, positioning can be performed when all modules of the terminal device are turned on.

[0082] In the embodiment of the present application, the transmission time of the first signal is set within the time corresponding to the activation time of DRX or the possible activation time of DRX, so that the positioning measurement occurs as much as possible during the activation time of DRX, thereby reducing the power consumption of the terminal device.

[0083] Embodiment 2

[0084] Embodiment 2 aims to solve the relationship between the measurement gap used for positioning measurement and DRX.

[0085] Figure 5 It is a flowchart of the wireless communication method provided in Example 2 of the present application. Figure 5 The method can be executed by a terminal device or by a positioning device of a core network (such as LMF).

[0086] See also Figure 5 In step S510, it is determined whether the first time period overlaps with the measurement gap.

[0087] In some embodiments, the first time period may include a setting time of a DRX duration timer. For relevant explanations on the setting time of the DRX duration timer, please refer to Embodiment 1.

[0088] In some embodiments, the first period may include a DRX activation time. The DRX activation time may refer to an actual activation time of the DRX (i.e., a time when the terminal device is definitely in an activated state), or may refer to a possible activation time of the DRX. For relevant explanations on the possible activation time of the DRX, see Example 1.

[0089] In some embodiments, the first time period may include a time determined based on the setting time of the DRX duration timer and the time offset value. For example, the first time period may be the sum of the setting time of the DRX duration timer and the time offset value. The value of the time offset value may be positive or negative. In other words, the setting time of the DRX duration timer may be offset forward or backward. The time offset value may be predefined by the protocol or configured by the network.

[0090] In some embodiments, the first time period may include a time determined based on the DRX activation time and the time offset value. For example, the first time period may be the sum of the DRX activation time and the time offset value. The time offset value may be positive or negative. In other words, the DRX activation time may be shifted forward or backward. The time offset value may be predefined by the protocol or configured by the network.

[0091] Continue to see Figure 5 If the first time period overlaps with the measurement gap, step S520a is performed to determine whether the measurement gap is a valid measurement gap (i.e., positioning measurement can be performed in the measurement gap). For example, positioning measurement can be performed during the overlapping time of the first time period and the measurement gap. Alternatively, positioning measurement can be performed during the entire measurement gap.

[0092] If the first time period does not overlap with the measurement gap, step S520b is executed to determine that the measurement gap is an invalid measurement gap (ie, positioning measurement is not performed in the measurement gap).

[0093] Embodiment 3

[0094] Some versions of the current protocol (such as R17) support terminal devices to perform positioning measurements outside the measurement gap. However, the protocol requires that positioning measurements outside the measurement gap must be performed within the processing time window. In this scenario, if the terminal device receives a PS-RNTI-encrypted DCI (i.e., the wake-up signal mentioned above, the DCI is used to indicate whether the terminal device needs to wake up to monitor the PDCCH within the DRX wake-up time (on-duration)), and the priority of performing positioning measurements in the processing time window is higher than the priority of the PS-RNTI-encrypted DCI (such as positioning measurements used for emergency rescue), then it is a reasonable choice for the terminal device to perform positioning measurements within the processing time window. However, the DCI may indicate that the terminal device wakes up from a sleep state, or it may indicate that the terminal device does not need to wake up from a sleep state. Faced with this situation, how the terminal device should handle it is an urgent problem to be solved. Example 3 is intended to solve this problem. The following is combined with Figure 6 , Example 3 is described in detail with examples.

[0095] Figure 6 It is a flowchart of a wireless communication method provided in Example 3. Figure 6 The method is described from the perspective of the terminal device and the base station. The relevant description of the terminal device and the base station can be found in the previous text. For example, the terminal device can be Figure 1 The terminal device 110 in the example may be Figure 1 The base station 120 in.

[0096] See also Figure 6In step S610, the terminal device receives a first DCI. The first DCI may be a PS-RNTI scrambled DCI. The first DCI may indicate that the terminal device wakes up or does not wake up to monitor the PDCCH within the DRX duration. Alternatively, the first DCI may indicate that the terminal device starts a DRX duration timer or does not start a DRX duration timer.

[0097] In step S620a, if the priority of the positioning measurement in the processing time window (the processing time window can be used by the terminal device to perform positioning measurement or SRS transmission, and the processing time window can be located outside the measurement gap) is higher than the priority of the first DCI, the terminal device starts the DRX duration timer. In other words, regardless of whether the first DCI instructs the terminal device to start the DRX duration timer or not, the terminal device can directly assume that the first DCI instructs the terminal device to start the DRX duration timer. In other words, if the priority of the positioning measurement is higher than the priority of energy saving, the terminal device can invalidate the first DCI and directly start the DRX duration timer. Therefore, the terminal device may not detect the first DCI before starting the DRX duration timer. Similarly, if the priority of the positioning measurement in the processing time window is higher than the priority of the first DCI, the base station can determine that the terminal device starts the DRX duration timer (see step S620b).

[0098] The priority of the positioning measurement within the processing time window mentioned above and / or the priority of the first DCI (or the priority of the wake-up signal) may be configured through high-layer signaling or predefined through a protocol.

[0099] Combination of the above Figures 1 to 6 , describes the method embodiment of the present application in detail, and the following is combined with Figures 7 to 12 , describes the device embodiment of the present application in detail. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, so the parts not described in detail can refer to the previous method embodiment.

[0100] Figure 7 It is a structural diagram of a communication device provided by an embodiment of the present application. Figure 7 The communication device 700 may be a positioning device in a core network. The communication device 700 includes a receiving module 710 and a determining module 720.

[0101] The receiving module 710 may be used to receive first information associated with DRX. The determining module 720 may be used to determine a transmission time of a first signal according to the first information, wherein the first signal is a reference signal for positioning, and the transmission time of the first signal is within a first time period; wherein the first time period corresponds to an activation time of the DRX; or, the first time period corresponds to a possible activation time of the DRX.

[0102] Optionally, the first time period includes one or more of the following: time determined based on the setting time of the DRX duration timer; time determined based on the setting time of the DRX duration timer and a time offset value; time determined based on the length of the DRX deactivation timer; time determined based on the length of the DRX deactivation timer and a time offset value; time determined based on a possible activation time of the DRX; and time determined based on a possible activation time of the DRX and a time offset value.

[0103] Optionally, the time offset value is determined based on the length of a DRX deactivation timer.

[0104] Optionally, the setting time of the DRX duration timer includes: the operational time of the DRX duration timer, and the operational time is independent of whether the wake-up signal indicates that the terminal device is awake.

[0105] Optionally, when the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the first signal is not transmitted in the first time period; or, when the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the first signal is transmitted in the first time period; or, when the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, whether the first signal is transmitted in the first time period is configured by high-level signaling.

[0106] Optionally, the possible activation time of the DRX includes one or more of the following: a setting time of a DRX duration timer; and a time determined based on the setting time of the DRX duration timer and the length of a DRX deactivation timer.

[0107] Optionally, the first time period includes part or all of the setting time of the DRX duration timer; or, the start time of the first time period is after the setting time of the DRX duration timer ends.

[0108] Optionally, the first information is sent by the base station through NRPPa signaling or by the terminal device through LPP signaling.

[0109] Optionally, the first signal includes one or more of the following signals: aperiodic SRS, periodic SRS, aperiodic PRS, periodic PRS, and on-demand PRS.

[0110] Figure 8 It is a structural diagram of a communication device provided in another embodiment of the present application. Figure 8 The communication device 800 may be a terminal device or a base station. The communication device 800 includes a sending module 810.

[0111] The sending module 810 can be used to send first information associated with DRX to a positioning device in a core network; wherein, the first information is used to determine a transmission or measurement time of a first signal, the first signal is a reference signal for positioning, and the transmission time of the first signal is within a first time period; wherein, the first time period corresponds to an activation time of the DRX; or, the first time period corresponds to a possible activation time of the DRX.

[0112] Optionally, the first time period includes one or more of the following: time determined based on the setting time of the DRX duration timer; time determined based on the setting time of the DRX duration timer and a time offset value; time determined based on the length of the DRX deactivation timer; time determined based on the length of the DRX deactivation timer and a time offset value; time determined based on a possible activation time of the DRX; and time determined based on a possible activation time of the DRX and a time offset value.

[0113] Optionally, the time offset value is determined based on the length of a DRX deactivation timer.

[0114] Optionally, the setting time of the DRX duration timer includes: the operational time of the DRX duration timer, and the operational time is independent of whether the wake-up signal indicates that the terminal device is awake.

[0115] Optionally, when the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the first signal is not transmitted in the first time period; or, when the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the first signal is transmitted in the first time period; or, when the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, whether the first signal is transmitted in the first time period is configured by high-level signaling.

[0116] Optionally, the possible activation time of the DRX includes one or more of the following: a setting time of a DRX duration timer; and a time determined based on the setting time of the DRX duration timer and the length of a DRX deactivation timer.

[0117] Optionally, the first time period includes part or all of the setting time of the DRX duration timer; or, the start time of the first time period is after the setting time of the DRX duration timer ends.

[0118] Optionally, the first information is sent by the base station through NRPPa signaling or by the terminal device through LPP signaling.

[0119] Optionally, the first signal includes one or more of the following signals: aperiodic SRS, periodic SRS, aperiodic PRS, periodic PRS, and on-demand PRS.

[0120] Fig. 9 It is a structural diagram of a communication device provided in yet another embodiment of the present application. Fig. 9 The communication device 900 may be a terminal device or a base station. The communication device 900 includes a determination module 910. The determination module 910 may be used to determine that the measurement gap is a valid measurement gap if the first time period overlaps with the measurement gap; and / or, if the first time period does not overlap with the measurement gap, determine that the measurement gap is an invalid measurement gap; wherein the first time period includes one or more of the following times: a setting time of a DRX duration timer; a DRX activation time; a time determined based on the setting time of the DRX duration timer and a time offset value; and a time determined based on the DRX activation time and a time offset value.

[0121] Fig.10 It is a structural diagram of a communication device provided in yet another embodiment of the present application. Fig.10 The communication device 1000 may be a terminal device. The communication device 1000 includes a receiving module 1010 and a starting module 1020.

[0122] The receiving module 1010 may be used to receive a first DCI, where the first DCI is a PS-RNTI scrambled DCI. The starting module 1020 may be used to start a discontinuous reception DRX duration timer if the priority of the positioning measurement in the processing time window is higher than the priority of the first DCI, wherein the processing time window is used for positioning measurement or SRS transmission.

[0123] Optionally, the priority of the positioning measurement and / or the priority of the first DCI is configured through high-layer signaling or predefined through a protocol.

[0124] Optionally, the terminal device does not detect the first DCI before starting the DRX duration timer.

[0125] Fig.11 It is a structural diagram of a communication device provided in yet another embodiment of the present application. Fig.11The communication device 1100 may be a base station. The communication device 1100 includes a sending module 1110 and a determining module 1120.

[0126] The sending module 1110 may be used to send a first DCI, where the first DCI is a PS-RNTI-scrambled DCI. The determining module 1120 may be used to determine that the terminal device starts a discontinuous reception DRX duration timer if the priority of the positioning measurement in the processing time window is higher than the priority of the first DCI, wherein the processing time window is used for positioning measurement or SRS transmission.

[0127] Optionally, the priority of the positioning measurement and / or the priority of the first DCI is configured through high-layer signaling or predefined through a protocol.

[0128] Optionally, the terminal device does not detect the first DCI before starting the DRX duration timer.

[0129] Fig.12 It is a schematic structural diagram of the device of an embodiment of the present application. Fig.12 The dotted line in the figure indicates that the unit or module is optional. The device 1200 can be used to implement the method described in the above method embodiment. The device 1200 can be a chip, a terminal device, a base station or a positioning device.

[0130] The device 1200 may include one or more processors 1210. The processor 1210 may support the device 1200 to implement the method described in the method embodiment above. The processor 1210 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0131] The apparatus 1200 may further include one or more memories 1220. The memory 1220 stores a program, which can be executed by the processor 1210, so that the processor 1210 executes the method described in the above method embodiment. The memory 1220 may be independent of the processor 1210 or integrated in the processor 1210.

[0132] The apparatus 1200 may further include a transceiver 1230. The processor 1210 may communicate with other devices or chips through the transceiver 1230. For example, the processor 1210 may transmit and receive data with other devices or chips through the transceiver 1230.

[0133] The embodiment of the present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to the terminal device, base station or positioning device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal, base station or positioning device in each embodiment of the present application.

[0134] The embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal device, base station or positioning device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal, base station or positioning device in each embodiment of the present application.

[0135] The present application also provides a computer program. The computer program can be applied to the terminal device, base station or positioning device provided in the present application, and the computer program enables the computer to execute the method performed by the terminal, base station or positioning device in each embodiment of the present application.

[0136] It should be understood that in the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0137] It should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0138] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0139] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0140] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0141] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0142] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0143] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that: include: If the first time period overlaps with the measurement gap, determining that the measurement gap is a valid measurement gap; and / or If the first time period does not overlap with the measurement gap, determining that the measurement gap is an invalid measurement gap; The first period includes one or more of the following times: The setting time of the discontinuous reception DRX duration timer; DRX activation time; A time determined based on a setting time of the DRX duration timer and a time offset value; and The time is determined based on the DRX activation time and the time offset value.

2. The method according to claim 1, characterized in that Also includes: The positioning device in the core network receives first information associated with discontinuous reception DRX; The positioning device determines, according to the first information, a transmission time of a first signal, where the first signal is a reference signal used for positioning, and the transmission time of the first signal is within a first time period; The first time period corresponds to the activation time of the DRX; or the first time period corresponds to the possible activation time of the DRX.

3. The method according to claim 2, characterized in that The first period also includes one or more of the following: A time determined based on a setting time of a DRX duration timer; A time determined based on a setting time of the DRX duration timer and a time offset value; A time determined based on the length of the DRX deactivation timer; A time determined based on the length of the DRX deactivation timer and the time offset value; A time determined based on a possible activation time of the DRX; and The time is determined based on the possible activation time of the DRX and the time offset value.

4. The method according to claim 3, characterized in that The time offset value is determined based on the length of the DRX deactivation timer.

5. The method according to claim 3 or 4, characterized in that: The setting time of the DRX duration timer includes: the operational time of the DRX duration timer, and the operational time is independent of whether the wake-up signal indicates that the terminal device is awake.

6. The method according to claim 2, characterized in that When the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the first signal is not transmitted in the first time period; or, When the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the first signal is transmitted in the first time period; or, When the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, whether to transmit the first signal in the first time period is configured by high-level signaling.

7. The method according to claim 2, characterized in that The possible activation time of the DRX includes one or more of the following: The setup time of the DRX duration timer; and A time determined based on the setting time of the DRX duration timer and the length of the DRX deactivation timer.

8. The method according to claim 2, characterized in that: The first period includes part or all of the setting time of the DRX duration timer; or, The start time of the first period is after the setting time of the DRX duration timer ends.

9. The method according to claim 2, characterized in that: The first information is sent by the base station through NRPPa signaling or by the terminal device through LPP signaling.

10. The method according to claim 2, characterized in that The first signal includes one or more of the following signals: a non-periodic sounding reference signal SRS, a periodic SRS, a non-periodic positioning reference signal PRS, a periodic PRS, and an on-demand PRS.

11. A wireless communication method, characterized in that: include: The terminal device or the base station sends first information associated with discontinuous reception DRX to a positioning device in the core network; The first information is used to determine a transmission or measurement time of a first signal, the first signal is a reference signal for positioning, and the transmission time of the first signal is within a first time period; The first time period corresponds to the activation time of the DRX; or the first time period corresponds to the possible activation time of the DRX; If the first time period overlaps with the measurement gap, determining that the measurement gap is a valid measurement gap; and / or If the first time period does not overlap with the measurement gap, determining that the measurement gap is an invalid measurement gap; The first period includes one or more of the following times: The setting time of the discontinuous reception DRX duration timer; DRX activation time; A time determined based on a setting time of the DRX duration timer and a time offset value; and The time is determined based on the DRX activation time and the time offset value.

12. The method according to claim 11, characterized in that The first period includes one or more of the following: A time determined based on a setting time of a DRX duration timer; A time determined based on a setting time of the DRX duration timer and a time offset value; A time determined based on the length of the DRX deactivation timer; A time determined based on the length of the DRX deactivation timer and the time offset value; A time determined based on a possible activation time of the DRX; and The time is determined based on the possible activation time of the DRX and the time offset value.

13. The method according to claim 12, characterized in that The time offset value is determined based on the length of the DRX deactivation timer.

14. The method according to claim 12 or 13, characterized in that The setting time of the DRX duration timer includes: the operational time of the DRX duration timer, and the operational time is independent of whether the wake-up signal indicates that the terminal device is awake.

15. The method according to claim 11, characterized in that When the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the first signal is not transmitted in the first time period; or, When the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the first signal is transmitted in the first time period; or, When the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, whether to transmit the first signal in the first time period is configured by high-level signaling.

16. The method according to claim 11, characterized in that The possible activation time of the DRX includes one or more of the following: The setup time of the DRX duration timer; and A time determined based on the setting time of the DRX duration timer and the length of the DRX deactivation timer.

17. The method according to claim 11, characterized in that: The first period includes part or all of the setting time of the DRX duration timer; or, The start time of the first period is after the setting time of the DRX duration timer ends.

18. The method according to claim 11, characterized in that The first information is sent by the base station through NRPPa signaling or by the terminal device through LPP signaling.

19. The method according to claim 11, characterized in that The first signal includes one or more of the following signals: a non-periodic sounding reference signal SRS, a periodic SRS, a non-periodic positioning reference signal PRS, a periodic PRS, and an on-demand PRS.

20. The method according to claim 11 or 12, characterized in that Also includes: The terminal device receives first downlink control information DCI, where the first DCI is DCI scrambled by a power-saving radio network temporary identifier PS-RNTI; If the priority of positioning measurement in a processing time window is higher than the priority of the first DCI, the terminal device starts a discontinuous reception DRX duration timer, wherein the processing time window is used for positioning measurement or sounding reference signal SRS transmission.

21. The method according to claim 20, characterized in that The priority of the positioning measurement and / or the priority of the first DCI are configured through high-layer signaling or predefined through a protocol.

22. The method according to claim 20, characterized in that The terminal device did not detect the first DCI before starting the DRX duration timer.

23. The method according to claim 11, characterized in that The base station sends first downlink control information DCI, where the first DCI is DCI scrambled by a power-saving radio network temporary identifier PS-RNTI; If the priority of positioning measurement in a processing time window is higher than the priority of the first DCI, the base station determines that the terminal device starts a discontinuous reception DRX duration timer, wherein the processing time window is used for positioning measurement or sounding reference signal SRS transmission.

24. The method according to claim 23, characterized in that The priority of the positioning measurement and / or the priority of the first DCI are configured through high-layer signaling or predefined through a protocol.

25. The method according to claim 23 or 24, characterized in that The terminal device did not detect the first DCI before starting the DRX duration timer.

26. A communication device, characterized in that: include: a determination module, configured to determine that the measurement gap is a valid measurement gap if the first time period overlaps with the measurement gap; and / or determine that the measurement gap is an invalid measurement gap if the first time period does not overlap with the measurement gap; The first period includes one or more of the following times: The setting time of the discontinuous reception DRX duration timer; DRX activation time; A time determined based on a setting time of the DRX duration timer and a time offset value; and The time is determined based on the DRX activation time and the time offset value.

27. The communication device according to claim 26, characterized in that The communication device is a positioning device in a core network, and the communication device further includes: a receiving module, configured to receive first information associated with discontinuous reception DRX; The determining module is used to determine a transmission time of a first signal according to the first information, the first signal being a reference signal for positioning, and the transmission time of the first signal being within a first time period; The first time period corresponds to the activation time of the DRX; or the first time period corresponds to the possible activation time of the DRX.

28. The communication device according to claim 27, characterized in that The first period also includes one or more of the following: A time determined based on a setting time of a DRX duration timer; A time determined based on a setting time of the DRX duration timer and a time offset value; A time determined based on the length of the DRX deactivation timer; A time determined based on the length of the DRX deactivation timer and the time offset value; A time determined based on a possible activation time of the DRX; and The time is determined based on the possible activation time of the DRX and the time offset value.

29. The communication device according to claim 28, characterized in that The time offset value is determined based on the length of the DRX deactivation timer.

30. The communication device according to claim 28 or 29, characterized in that: The setting time of the DRX duration timer includes: the operational time of the DRX duration timer, and the operational time is independent of whether the wake-up signal indicates that the terminal device is awake.

31. The communication device according to claim 27, characterized in that: When the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the first signal is not transmitted in the first time period; or, When the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the first signal is transmitted in the first time period; or, When the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, whether to transmit the first signal in the first time period is configured by high-level signaling.

32. The communication device according to claim 27, characterized in that The possible activation time of the DRX includes one or more of the following: The setup time of the DRX duration timer; and A time determined based on the setting time of the DRX duration timer and the length of the DRX deactivation timer.

33. The communication device according to claim 27, characterized in that: The first period includes part or all of the setting time of the DRX duration timer; or, The start time of the first period is after the setting time of the DRX duration timer ends.

34. The communication device according to claim 27, characterized in that The first information is sent by the base station through NRPPa signaling or by the terminal device through LPP signaling.

35. The communication device according to claim 27, characterized in that The first signal includes one or more of the following signals: a non-periodic sounding reference signal SRS, a periodic SRS, a non-periodic positioning reference signal PRS, a periodic PRS, and an on-demand PRS.

36. A communication device, characterized in that: The communication device is a terminal device or a base station, and the communication device includes: A sending module, configured to send first information associated with discontinuous reception DRX to a positioning device in a core network; The first information is used to determine a transmission or measurement time of a first signal, the first signal is a reference signal for positioning, and the transmission time of the first signal is within a first time period; The first time period corresponds to the activation time of the DRX; or the first time period corresponds to the possible activation time of the DRX; If the first time period overlaps with the measurement gap, determining that the measurement gap is a valid measurement gap; and / or If the first time period does not overlap with the measurement gap, determining that the measurement gap is an invalid measurement gap; The first period includes one or more of the following times: The setting time of the discontinuous reception DRX duration timer; DRX activation time; A time determined based on a setting time of the DRX duration timer and a time offset value; and The time is determined based on the DRX activation time and the time offset value.

37. The communication device according to claim 36, characterized in that: The first period includes one or more of the following: A time determined based on a setting time of a DRX duration timer; A time determined based on a setting time of the DRX duration timer and a time offset value; A time determined based on the length of the DRX deactivation timer; A time determined based on the length of the DRX deactivation timer and the time offset value; A time determined based on a possible activation time of the DRX; and The time is determined based on the possible activation time of the DRX and the time offset value.

38. The communication device according to claim 37, characterized in that: The time offset value is determined based on the length of the DRX deactivation timer.

39. The communication device according to claim 37 or 38, characterized in that: The setting time of the DRX duration timer includes: the operational time of the DRX duration timer, and the operational time is independent of whether the wake-up signal indicates that the terminal device is awake.

40. The communication device according to claim 36, characterized in that When the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the first signal is not transmitted in the first time period; or, When the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, the first signal is transmitted in the first time period; or, When the wake-up signal indicates that the terminal device does not need to wake up in the first DRX cycle, whether to transmit the first signal in the first time period is configured by high-level signaling.

41. The communication device according to claim 36, characterized in that The possible activation time of the DRX includes one or more of the following: The setup time of the DRX duration timer; and A time determined based on the setting time of the DRX duration timer and the length of the DRX deactivation timer.

42. The communication device according to claim 36, characterized in that: The first period includes part or all of the setting time of the DRX duration timer; or, The start time of the first period is after the setting time of the DRX duration timer ends.

43. The communication device according to claim 36, characterized in that The first information is sent by the base station through NRPPa signaling or by the terminal device through LPP signaling.

44. The communication device according to claim 36, characterized in that The first signal includes one or more of the following signals: a non-periodic sounding reference signal SRS, a periodic SRS, a non-periodic positioning reference signal PRS, a periodic PRS, and an on-demand PRS.

45. The communication device according to claim 36 or 37, characterized in that: The communication device is a terminal device, and the communication device includes: A receiving module, configured to receive first downlink control information DCI, where the first DCI is a DCI scrambled by a power-saving radio network temporary identifier PS-RNTI; A starting module is used to start a discontinuous reception DRX duration timer if the priority of the positioning measurement in the processing time window is higher than the priority of the first DCI, wherein the processing time window is used for positioning measurement or sounding reference signal SRS transmission.

46. ​​The communication device according to claim 45, characterized in that The priority of the positioning measurement and / or the priority of the first DCI are configured through high-layer signaling or predefined through a protocol.

47. The communication device according to claim 45, characterized in that The terminal device did not detect the first DCI before starting the DRX duration timer.

48. The communication device according to claim 36 or 37, characterized in that: The communication device is a base station, and the communication device includes: A sending module, configured to send first downlink control information DCI, where the first DCI is a DCI scrambled by a power-saving radio network temporary identifier PS-RNTI; A determination module is used to determine that the terminal device starts a discontinuous reception DRX duration timer if the priority of the positioning measurement in the processing time window is higher than the priority of the first DCI, wherein the processing time window is used for positioning measurement or sounding reference signal SRS transmission.

49. The communication device according to claim 48, characterized in that The priority of the positioning measurement and / or the priority of the first DCI are configured through high-layer signaling or predefined through a protocol.

50. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 25.

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