CN117981398A

CN117981398A - Wireless communication method, first terminal device and network device

Info

Publication number: CN117981398A
Application number: CN202180102228.XA
Authority: CN
Inventors: 胡奕; 李海涛
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2024-05-03
Also published as: WO2023092455A1

Abstract

The embodiment of the application provides a wireless communication method, a first terminal device and a network device, wherein the method is applicable to the field of communication and comprises the following steps: determining whether the first terminal device meets a radio resource management, RRM, measurement relaxation criterion based on the location information of the first terminal device; in case the RRM measurement relaxation criterion is fulfilled, a relaxation RRM measurement is initiated. According to the application, the position information of the first terminal equipment is introduced, and whether the first terminal equipment meets the RRM measurement relaxation criterion or not is determined based on the position information of the first terminal equipment, so that the accuracy of measurement and the user experience can be improved on the basis of reducing the power consumption of the terminal.

Description

Wireless communication method, first terminal device and network device

Technical Field

The embodiment of the application relates to the field of communication, and more particularly relates to a wireless communication method, a first terminal device and a network device.

Background

In a New Radio, NR, terrestrial network, a reference signal received Power (REFERENCE SIGNAL RECEIVING Power, RSRP) of a UE (User Equipment) at a cell center is significantly higher than an RSRP of the UE at a cell edge. That is, since there is a significant "near-far effect", it can be determined whether a radio resource management (Radio Resource Management, RRM) measurement relaxation criterion is satisfied based on RSRP measurement, i.e., in case the network is configured with a non-cell edge (non AT CELL EDGE) criterion, the UE can determine whether its channel state is good enough by RSRP measurement on the serving cell, so that relaxed RRM measurement is started for the neighbor cell; in case the network is configured with Low mobility and/or stationary criteria, the UE may determine whether itself is in a Low mobility state or a stationary state based on its RSRP variation on the serving cell, so that a relaxed RRM measurement may be started for the neighbor cell.

In Non-terrestrial network (Non-TERRESTRIAL NETWORK, NTN) systems, due to the high satellite heights, the corresponding RSRP differences are not obvious for the UE in the cell center and the UE in the cell edge, i.e. the "near-far effect" of RSRP is poor, in which case if the RSRP measurement based on continued use is used to determine whether the UE meets the low mobility criterion, the stationary criterion or is not in the cell edge criterion, on the one hand, it is difficult for the network to set a suitable RSRP threshold, and on the other hand, due to the error in RSRP measurement, it is likely that the UE performs an unsuitable measurement operation. For example, in case the network is configured with cell edge criteria not in use, for users in the center of the cell, no relaxed RRM measurement is started for the neighbor cell due to the low RSRP measured, increasing unnecessary terminal power consumption; for the users at the cell edge, because the measured RSRP is higher, the relaxed RRM measurement is started for the neighbor cell, which may cause that the network does not find and reselect a more suitable neighbor cell in time, and the user experience is affected.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, first terminal equipment and network equipment, which can improve measurement accuracy and user experience on the basis of reducing terminal power consumption.

In a first aspect, the present application provides a wireless communication method, comprising:

Determining whether the first terminal device meets a radio resource management, RRM, measurement relaxation criterion based on the location information of the first terminal device;

In case the RRM measurement relaxation criterion is fulfilled, a relaxation RRM measurement is initiated.

In a second aspect, the present application provides a wireless communication method, comprising:

transmitting information about radio resource management RRM measurement relaxation criteria;

Wherein the information related to the RRM measurement relaxation criterion is used by a first terminal device to determine whether the first terminal device is full of the RRM measurement relaxation criterion based on the location information of the first terminal device.

In a third aspect, the present application provides a terminal device for performing the method of the first aspect or each implementation manner thereof. Specifically, the terminal device includes a functional module for executing the method in the first aspect or each implementation manner thereof.

In one implementation, the terminal device may include a processing unit for performing functions related to information processing. For example, the processing unit may be a processor.

In one implementation, the terminal device may include a transmitting unit and/or a receiving unit. The transmitting unit is configured to perform a function related to transmission, and the receiving unit is configured to perform a function related to reception. For example, the transmitting unit may be a transmitter or a transmitter and the receiving unit may be a receiver or a receiver. For another example, the terminal device is a communication chip, the sending unit may be an input circuit or an interface of the communication chip, and the sending unit may be an output circuit or an interface of the communication chip.

In a fourth aspect, the present application provides a network device for performing the method of the second aspect or implementations thereof. In particular, the network device comprises functional modules for performing the method of the second aspect or implementations thereof described above.

In one implementation, the network device may include a processing unit to perform functions related to information processing. For example, the processing unit may be a processor.

In one implementation, the network device may include a transmitting unit and/or a receiving unit. The transmitting unit is configured to perform a function related to transmission, and the receiving unit is configured to perform a function related to reception. For example, the transmitting unit may be a transmitter or a transmitter and the receiving unit may be a receiver or a receiver. For another example, the network device is a communication chip, the receiving unit may be an input circuit or an interface of the communication chip, and the transmitting unit may be an output circuit or an interface of the communication chip.

In a fifth aspect, the present application provides a terminal device comprising a processor and a memory. The memory is configured to store a computer program, and the processor is configured to invoke and execute the computer program stored in the memory, so as to perform the method in the first aspect or each implementation manner thereof.

In one implementation, the processor is one or more and the memory is one or more.

In one implementation, the memory may be integrated with the processor or separate from the processor.

In one implementation, the terminal device further includes a transmitter (transmitter) and a receiver (receiver).

In a sixth aspect, the present application provides a network device comprising a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method in the second aspect or various implementation manners thereof.

In one implementation, the network device further includes a transmitter (transmitter) and a receiver (receiver).

In a seventh aspect, the present application provides a chip for implementing the method in any one of the first to second aspects or each implementation thereof. Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method as in any one of the first to second aspects or implementations thereof described above.

In an eighth aspect, the present application provides a computer-readable storage medium storing a computer program for causing a computer to perform the method of any one of the above first to second aspects or implementations thereof.

In a ninth aspect, the present application provides a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the first to second aspects or implementations thereof.

In a tenth aspect, the present application provides a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof.

Based on the technical scheme, the position information of the first terminal equipment is introduced, and whether the first terminal equipment meets the RRM measurement relaxation criterion or not is determined based on the position information of the first terminal equipment, which is equivalent to avoiding that whether the first terminal equipment meets the RRM measurement relaxation criterion or not is influenced due to the fact that the near-far effect is not obvious in the NTN cell, so that the accuracy of measurement and the user experience can be improved on the basis of reducing the power consumption of the terminal.

Drawings

Fig. 1 to 3 are schematic block diagrams of a system framework provided by an embodiment of the present application.

Fig. 4 and 5 show schematic diagrams of NTN scenarios based on a through-transmission-repeater satellite and a regenerative repeater satellite, respectively.

Fig. 6 is an example of near-far effect of RSRP of a terminal device in an NR scenario and an NTN scenario provided by an embodiment of the present application.

Fig. 7 is a schematic flow chart of a wireless communication method provided by an embodiment of the present application.

Fig. 8 is an example in which a terminal device provided by an embodiment of the present application satisfies a first criterion.

Fig. 9 is an example in which the terminal device provided by the embodiment of the present application satisfies the third criterion.

Fig. 10 is another schematic flow chart of a wireless communication method provided by an embodiment of the present application.

Fig. 11 is a schematic block diagram of a first terminal device provided in an embodiment of the present application.

Fig. 12 is a schematic block diagram of a network device provided by an embodiment of the present application.

Fig. 13 is a schematic block diagram of a communication device provided by an embodiment of the present application.

Fig. 14 is a schematic block diagram of a chip provided by an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.

As shown in fig. 1, communication system 100 may include a terminal device 110 and a network device 120. Network device 120 may communicate with terminal device 110 over the air interface. Multi-service transmission is supported between terminal device 110 and network device 120.

It should be understood that embodiments of the present application are illustrated by way of example only with respect to communication system 100, and embodiments of the present application are not limited thereto. That is, the technical solution of the embodiment of the present application may be applied to various communication systems, for example: long term evolution (Long Term Evolution, LTE) system, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), 5G communication system (also referred to as New Radio (NR) communication system), or future communication system, etc.

In the communication system 100 shown in fig. 1, the network device 120 may be an access network device in communication with the terminal device 110. The access network device may provide communication coverage for a particular geographic area and may communicate with terminal devices 110 (e.g., UEs) located within the coverage area.

The network device 120 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in a long term evolution (Long Term Evolution, LTE) system, or a next generation radio access network (Next Generation Radio Access Network, NG RAN) device, or a base station (gNB) in a NR system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device 120 may be a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

Terminal device 110 may be any terminal device including, but not limited to, a terminal device that employs a wired or wireless connection with network device 120 or other terminal devices.

For example, the terminal device 110 may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolution network, etc.

The terminal Device 110 may be used for Device-to-Device (D2D) communication.

The wireless communication system 100 may further comprise a core network device 130 in communication with the base station, which core network device 130 may be a 5G core,5gc device, e.g. an access and mobility management function (ACCESS AND Mobility Management Function, AMF), further e.g. an authentication server function (Authentication Server Function, AUSF), further e.g. a user plane function (User Plane Function, UPF), further e.g. a session management function (Session Management Function, SMF). Optionally, the Core network device 130 may also be a packet Core evolution (Evolved Packet Core, EPC) device of the LTE network, for example, a session management function+a data gateway (Session Management Function +core PACKET GATEWAY, SMF +pgw-C) device of the Core network. It should be appreciated that SMF+PGW-C may perform the functions performed by both SMF and PGW-C. In the network evolution process, the core network device may also call other names, or form new network entities by dividing the functions of the core network, which is not limited in this embodiment of the present application.

Communication may also be achieved by establishing connections between various functional units in the communication system 100 through a next generation Network (NG) interface.

For example, the terminal device establishes an air interface connection with the access network device through an NR interface, and is used for transmitting user plane data and control plane signaling; the terminal equipment can establish control plane signaling connection with AMF through NG interface 1 (N1 for short); an access network device, such as a next generation radio access base station (gNB), can establish a user plane data connection with a UPF through an NG interface 3 (N3 for short); the access network equipment can establish control plane signaling connection with AMF through NG interface 2 (N2 for short); the UPF can establish control plane signaling connection with the SMF through an NG interface 4 (N4 for short); the UPF can interact user plane data with the data network through an NG interface 6 (N6 for short); the AMF may establish a control plane signaling connection with the SMF through NG interface 11 (N11 for short); the SMF may establish a control plane signaling connection with the PCF via NG interface 7 (N7 for short).

Fig. 1 exemplarily illustrates one base station, one core network device, and two terminal devices, alternatively, the wireless communication system 100 may include a plurality of base station devices and each base station may include other number of terminal devices within a coverage area, which is not limited by the embodiment of the present application.

In a New Radio (NR) system, a Non-terrestrial communication network (Non-TERRESTRIAL NETWORKS, NTN) is considered to provide communication services to users. NTN typically provides communication services to terrestrial users by way of satellite communications. Satellite communications have many unique advantages over terrestrial cellular communications. First, satellite communications are not limited by the user region, for example, general land communications cannot cover areas where communication devices cannot be installed, such as oceans, mountains, deserts, etc., or communication coverage is not performed due to rarity of population, while for satellite communications, since one satellite can cover a larger ground, and the satellite can orbit around the earth, theoretically every corner on the earth can be covered by satellite communications. And secondly, satellite communication has great social value. Satellite communication can be covered in remote mountain areas, poor and backward countries or regions with lower cost, so that people in the regions enjoy advanced voice communication and mobile internet technology, and the digital gap between developed regions is reduced, and the development of the regions is promoted. Again, the satellite communication distance is far, and the cost of communication is not obviously increased when the communication distance is increased; and finally, the satellite communication has high stability and is not limited by natural disasters.

Fig. 2 is a schematic diagram of another architecture of a communication system according to an embodiment of the present application.

As shown in FIG. 2, including a terminal device 1101 and a satellite 1102, wireless communication may be provided between terminal device 1101 and satellite 1102. The network formed between terminal device 1101 and satellite 1102 may also be referred to as NTN. In the architecture of the communication system shown in FIG. 2, satellite 1102 may have the functionality of a base station and direct communication may be provided between terminal device 1101 and satellite 1102. Under the system architecture, satellite 1102 may be referred to as a network device. In some embodiments of the present application, a plurality of network devices 1102 may be included in a communication system, and other numbers of terminal devices may be included within the coverage area of each network device 1102, which embodiments of the present application are not limited in this regard.

Fig. 3 is a schematic diagram of another architecture of a communication system according to an embodiment of the present application.

As shown in fig. 3, the system comprises a terminal device 1201, a satellite 1202 and a base station 1203, wherein wireless communication can be performed between the terminal device 1201 and the satellite 1202, and communication can be performed between the satellite 1202 and the base station 1203. The network formed between the terminal device 1201, the satellite 1202 and the base station 1203 may also be referred to as NTN. In the architecture of the communication system shown in fig. 3, the satellite 1202 may not have the function of a base station, and communication between the terminal device 1201 and the base station 1203 needs to be relayed through the satellite 1202. Under such a system architecture, the base station 1203 may be referred to as a network device. In some embodiments of the present application, a plurality of network devices 1203 may be included in the communication system, and other number of terminal devices may be included in the coverage area of each network device 1203, which is not limited by the embodiment of the present application. The network device 1203 may be the network device 120 of fig. 1.

It should be appreciated that the satellites 1102 or 1202 include, but are not limited to:

Low Earth Orbit (Low-Earth Orbit) LEO satellites, medium Earth Orbit (MEO) satellites, geosynchronous Orbit (Geostationary Earth Orbit, GEO) satellites, high elliptical Orbit (HIGH ELLIPTICAL Orbit, HEO) satellites, and the like. Satellites may cover the ground with multiple beams, e.g., a satellite may form tens or even hundreds of beams to cover the ground. In other words, one satellite beam may cover a ground area of several tens to hundreds of kilometers in diameter to ensure satellite coverage and to increase the system capacity of the overall satellite communication system.

As an example, the LEO may have a height ranging from 500km to 1500km, a corresponding orbital period of about 1.5 hours to 2 hours, a signal propagation delay for single hop communication between users may generally be less than 20ms, a maximum satellite visibility time may be 20 minutes, a signal propagation distance of the LEO is short and a link loss is small, and a transmission power requirement of a user terminal is not high. The orbit height of GEO may be 35786km, the period of rotation around the earth may be 24 hours, and the signal propagation delay for single hop communications between users may typically be 250ms.

In general, in order to ensure coverage of a satellite and improve system capacity of an entire satellite communication system, the satellite adopts multiple beams to cover the ground, and one satellite can form tens or hundreds of beams to cover the ground; a satellite beam may cover a ground area of several tens to hundreds of kilometers in diameter.

It should be noted that fig. 1 to 3 illustrate, by way of example, a system to which the present application is applied, and of course, the method shown in the embodiment of the present application may be applied to other systems. Furthermore, the terms "system" and "network" are often used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship. It should also be understood that, in the embodiments of the present application, the "indication" may be a direct indication, an indirect indication, or an indication having an association relationship. For example, a indicates B, which may mean that a indicates B directly, e.g., B may be obtained by a; it may also indicate that a indicates B indirectly, e.g. a indicates C, B may be obtained by C; it may also be indicated that there is an association between a and B.

Satellites can be categorized into transmission-through forwarding (TRANSPARENT PAYLOAD) and regenerative forwarding (REGENERATIVE PAYLOAD) from the functions they provide. For the transparent transmission forwarding satellite, only the functions of wireless frequency filtering, frequency conversion and amplification are provided, only the transparent forwarding of signals is provided, and the waveform signals forwarded by the transparent transmission forwarding satellite are not changed. For regenerative repeater satellites, in addition to providing functions of radio frequency filtering, frequency conversion and amplification, demodulation/decoding, routing/conversion, encoding/modulation functions may be provided, which have some or all of the functions of the base station.

In NTN, one or more gateways (Gateway) may be included for communication between satellites and terminals.

As shown in fig. 4, for an NTN scenario based on a transtransmission satellite, the gateway and the satellite communicate via a feeder link (FEEDER LINK), and the satellite and the terminal communicate via a service link (SERVICE LINK). As shown in fig. 5, for the NTN scenario based on regenerative repeating satellites, the satellites communicate via inter-satellite (INTERSTAR LINK), the gateway communicates with the satellites via feeder links (FEEDER LINK), and the satellites communicate with the terminals via service links (SERVICE LINK).

With the pursuit of speed, delay, high-speed mobility, energy efficiency and the diversity and complexity of future life services, the 3GPP international standards organization starts to develop 5G. The main application scenarios of 5G include: enhanced mobile Ultra-wideband (Enhance Mobile Broadband, eMBB), low latency high reliability communications (Ultra-Reliable and Low Latency Communication, URLLC), large scale machine type communications (MASSIVE MACHINE TYPE of communications, mMTC). Wherein eMBB aims at obtaining multimedia contents, services and data by users, and the demand of the eMBB is very rapid to increase. As eMBB may be deployed in different scenarios. For example, indoors, urban areas, rural areas, etc., the capability and demand of which are also quite different, so that detailed analysis can be combined with specific deployment scenarios cannot be generalized. Typical applications of URLLC include: industrial automation, electric power automation, remote medical operation (surgery), traffic safety guarantee and the like. Typical features of mMTC include: high connection density, small data volume, delay insensitive traffic, low cost and long service life of the module, etc.

NR can be deployed independently, and a new radio resource control (Radio Resource Control, RRC) state, namely RRC_INACTIVE state, is defined in the 5G network environment for the purposes of reducing air interface signaling and quickly recovering radio connection and quickly recovering data service. This state is different from the rrc_idle and rrc_connected states.

In the rrc_idle state: mobility is UE-based cell selection reselection, paging is initiated by a Core Network (CN), and paging areas are configured by the CN. The base station side does not have a UE Access Stratum (AS) context, and does not have RRC connection.

In the rrc_connected state: there is an RRC connection and the base station and UE have a UE AS context. The network device knows that the location of the UE is cell specific. Mobility is mobility controlled by the network device. Unicast data may be transmitted between the UE and the base station.

Rrc_inactive: mobility is a UE-based cell selection reselection, there is a connection between CN-NRs, the UE AS context is present on a certain base station, paging is triggered by the radio access network (Radio Access Network, RAN), the RAN-based paging area is managed by the RAN, the network device knows that the UE location is based on the RAN paging area level.

In order to facilitate understanding of the scheme of the present application, the scheme related to RRM measurement in the NR system provided by the present application is described below.

(1) RRM measurement of R15NR non-connected terminal equipment.

For a terminal device in a non-connected state, it needs to perform radio resource management (Radio Resource Management, RRM) measurements on the serving cell as well as other neighbor cells based on the configuration of the network device to support mobility operations, such as cell reselection, etc.

The measurement of the non-connected terminal device for the serving cell is performed continuously.

In some embodiments, in view of reducing the power consumption of the terminal device, when the quality channel of the terminal device in the serving cell is better, the terminal device may not start RRM measurement for the same frequency point, the same priority or the low priority different frequency/different technology frequency point, and may perform relaxed RRM measurement for the high priority different frequency/different technology frequency point.

Specifically, for the co-frequency point, if the Reference Signal Received Power (RSRP) measured by the serving cell S _rxlev is higher than S _IntraSearchP and the Reference Signal Received Quality (RSRQ) S _qual is higher than S _IntraSearchQ, the terminal device may turn off the measurements of all co-frequency neighbor cells. For the NR different frequency points or different technology frequency points with low priority or equal priority, if S _rxlev measured by the serving cell is higher than S _{nonIntraSearchP} and S _qual is higher than S _{nonIntraSearchQ}, the terminal device may close the measurement of all the NR different frequency points or different technology frequency points with low priority or equal priority. For NR alien frequency points or alien technology frequency points of high priority, if S _rxlev measured by the serving cell is higher than S _{nonIntraSearchP} and S _qual is higher than S _{nonIntraSearchQ}, the terminal device may perform a relaxed measurement for NR alien frequency points or alien technology frequency points of high priority, where the measurement interval is relaxed to T _{higher_priority_search}＝(60*N _layers) S for each high priority frequency point, where N _layers is the number of high priority frequency points broadcasted by the network.

Wherein, parameters S _IntraSearchP,S _IntraSearchQ,S _{nonIntraSearchP} and S _{nonIntraSearchQ} are configured by the network through SIB 2.

In some embodiments, the cell measurement requirements (requirements) in the NR include T _detect、T _measure and T _evaluate; wherein T _detect、T _measure and T _evaluate are used to represent the time taken for cell detection, cell measurement and cell evaluation, respectively. Illustratively, the cell measurement requirement (requirement) is related to the discontinuous reception (Discontinuous Reception, DRX) period of the terminal device. For example, at least one of T _detect、T _measure and T _evaluate may be determined according to a DRX cycle of the terminal device.

(2) Relaxed RRM measurement for R16NR non-connected terminal equipment.

In some embodiments, a relaxed measurement mechanism for neighbor cells of non-connected terminal devices may be introduced to further meet the power saving requirements of the terminal.

For example, to support relaxed neighbor cell measurements, a low mobility (low mobility) criterion and a non-at-cell-edge criterion may be introduced. For example, the low mobility criterion and the non-cell edge criterion are both measured in terms of measurements of the terminal device on the serving cell. For example, the low mobility criteria and the non-cell edge criteria may be defined as follows:

1. Low mobility criteria:

For the low mobility criterion, the network device may configure an evaluation duration T _SearchDeltaP of RSRP change and an RSRP change value threshold S _SearchDeltaP. When the RSRP change of the terminal device on the serving cell is less than S _SearchDeltaP within a period of time T _SearchDeltaP, then the terminal device is considered to meet the "low mobility" criterion. Namely: the method comprises the step of satisfying (S _rxlevRef–S _rxlev)<S _SearchDeltaP) for a period of time T _SearchDeltaP, wherein S _rxlev is the current S _rxlev measurement value of the serving cell and S _rxlevRef is the reference S _rxlev value of the serving cell, optionally, when the terminal device selects or reselects to a new cell, (S _rxlev-S _rxlevRef) >0 or the terminal device does not satisfy for a duration of T _SearchDeltaP (S _rxlevRef–S _rxlev)<S _SearchDeltaP, the terminal device may set S _rxlevRef as the current S _rxlev measurement value of the serving cell.

After completing cell selection/reselection, the terminal device needs to perform normal RRM measurements for at least a period of time T _SearchDeltaP.

2. Non-cell edge criteria:

For the criterion of not being at the cell edge, the network device may configure a reference signal received Power (REFERENCE SIGNAL RECEIVING Power, RSRP) threshold S _{SearchThresholdP}, and may further configure a reference signal received Quality (REFERENCE SIGNAL RECEIVING Quality, RSRQ) threshold S _{SearchThresholdQ}, where when the RSRP of the terminal device on the serving cell is greater than the RSRP threshold (i.e. S _{SearchThresholdP}), and where the network is configured with the RSRQ threshold, the RSRQ of the terminal device on the serving cell is greater than the RSRQ threshold (i.e. S _{SearchThresholdQ}), then the terminal device is considered to satisfy the criterion of not being at the cell edge.

In some embodiments, the network device may notify the terminal device by way of a system broadcast whether the RRM measurement relax function may be initiated. Optionally, the terminal device needs to configure at least one RRM measurement relaxation criterion in case of starting the RRM measurement relaxation function. For different configurations, there may be four cases:

Case 1:

the network device only configures the terminal device with the low mobility criterion, when the terminal device meets the low mobility criterion, the terminal device starts a relaxed RRM measurement for the neighbor cell.

Case 2:

the network device configures the terminal device with only the non-cell edge criteria, the terminal device performs relaxed RRM measurements for neighboring cells when the terminal device satisfies the non-cell edge criteria.

Case 3:

The network device configures the terminal device with both the low mobility criterion and the non-cell edge criterion, and the network device does not configure the terminal device with the combined relaxed measurement condition (combineRelaxedMeasCondition) parameter, at which time the terminal device initiates a relaxed RRM measurement for the neighbor cell when the terminal device satisfies at least one of the low mobility criterion and the non-cell edge criterion.

Case 4:

The network device configures the terminal device with both the low mobility criterion and the non-cell edge criterion and the network device configures the terminal device with a combined relaxed measurement condition (combineRelaxedMeasCondition) parameter, at which time the terminal device initiates a relaxed RRM measurement for the neighbor cell when the terminal device satisfies both the low mobility criterion and the non-cell edge criterion.

In some embodiments, the following two RRM measurement relaxation methods may be defined for a non-connected state terminal device:

Method 1:

When the terminal device only meets the low mobility criterion or is not at the cell edge criterion, the measurement interval is relaxed to 3 times the normal measurement interval for the same-frequency measurement, the NR inter-frequency measurement and the inter-technology inter-frequency measurement.

Method 2:

When the terminal device satisfies both the low mobility criterion and the non-cell edge criterion, the measurement interval may be relaxed to 1 hour for the same-frequency measurement, the NR inter-frequency measurement, and the inter-technology inter-frequency measurement.

Furthermore, for high priority frequency points, a high priority measurement relaxation (highPriorityMeasRelax) parameter may be introduced, which is used to indicate whether the network device allows the terminal device to relax to a exceeding T _{higher_priority_search} value at the measurement interval of the high priority frequency point; of course, the case where the terminal device satisfies both the low mobility criterion and the non-cell edge criterion may be excluded. In other words, the high priority measurement relaxation parameter is only used to control the network device to configure the terminal device with only the low mobility criterion and the terminal device satisfies the low mobility criterion, and the measurement result of the terminal device in the serving cell satisfies the case that S _rxlev is greater than S _{nonIntraSearchP} and S _qual is greater than S _{nonIntraSearchQ}. In this case, if the network device configures the terminal device with the high-priority measurement relaxation parameter, the measurement interval of the terminal device for the high-priority frequency point may be relaxed to K ₂*T _{higher_priority_search}, where K ₂ is 60; otherwise, the measurement interval of the terminal device for the high-priority frequency point is T _{higher_priority_search}, that is, if the network device does not give the terminal device the high-priority measurement relaxation parameter, the measurement interval of the terminal device for the high-priority frequency point is T _{higher_priority_search}.

(3) Relaxed RRM measurement of R17NR non-connected state terminal device.

In some embodiments, a stationary (stationary) criterion, i.e. a relaxation of RRM measurements for stationary terminals, may be further introduced on the basis of low mobility criteria and not on the cell edge criteria. Illustratively, the rest criteria may be defined as follows:

Mode 1:

The stationary criterion may reuse the low mobility criterion, and further, the network device may configure different threshold values for the stationary criterion and the low mobility criterion.

Mode 2:

The stationary criterion may be an optional configuration and the non-cell edge criterion may be an optional configuration if the network device configures RRM relaxation criteria for non-connected terminal devices.

As shown in fig. 6 (a), in the New Radio, NR, terrestrial network, the reference signal received Power (REFERENCE SIGNAL RECEIVING Power, RSRP) of the UE (User Equipment) is significantly higher when it is at the cell center than when it is at the cell edge. That is, since there is a significant "near-far effect", it can be determined whether a radio resource management (Radio Resource Management, RRM) measurement relaxation criterion is satisfied based on RSRP measurement, i.e., in case the network is configured with a non-cell edge (non AT CELL EDGE) criterion, the UE can determine whether its channel state is good enough by RSRP measurement on the serving cell, so that relaxed RRM measurement is started for the neighbor cell; in case the network is configured with Low mobility and/or stationary criteria, the UE may determine whether itself is in a Low mobility state or a stationary state based on its RSRP variation on the serving cell, so that a relaxed RRM measurement may be started for the neighbor cell.

As shown in fig. 6 (b), in a Non-terrestrial network (Non-TERRESTRIAL NETWORK, NTN) system, since the satellite is higher from the ground, the corresponding RSRP difference is not obvious for the UE at the center of the cell and the UE at the edge of the cell, i.e. the "near-far effect" of RSRP is poor, in which case if the RSRP measurement is continuously used to determine whether the UE meets the low mobility criterion, the stationary criterion or is not at the edge of the cell, on the one hand, it is difficult for the network to set a suitable RSRP threshold, and on the other hand, it is likely that the UE performs an unsuitable measurement operation due to the error in RSRP measurement. For example, in case the network is configured with cell edge criteria not in use, for users in the center of the cell, no relaxed RRM measurement is started for the neighbor cell due to the low RSRP measured, increasing unnecessary terminal power consumption; for the users at the cell edge, because the measured RSRP is higher, the relaxed RRM measurement is started for the neighbor cell, which may cause that the network does not find and reselect a more suitable neighbor cell in time, and the user experience is affected.

In view of the above, the embodiments of the present application provide a wireless communication method, a first terminal device, and a network device, which can improve measurement accuracy and user experience on the basis of reducing terminal power consumption.

Fig. 7 shows a schematic flow chart of a wireless communication method 200 according to an embodiment of the application, which method 200 may be performed by a first terminal device. The first terminal device may be a terminal device as shown in fig. 1.

As shown in fig. 7, the method 200 may include:

S210, determining whether the first terminal equipment meets a radio resource management RRM measurement relaxation criterion or not based on the position information of the first terminal equipment;

S220, under the condition that the RRM measurement relaxation criterion is met, starting to relax the RRM measurement.

In this embodiment, by introducing the location information of the first terminal device and determining whether the first terminal device meets the RRM measurement relaxation criterion based on the location information of the first terminal device, it is equivalent to avoid that the result of whether the first terminal device meets the RRM measurement relaxation criterion is affected because the near-far effect is not obvious in the NTN cell, so that the accuracy and the user experience of measurement can be improved on the basis of reducing the power consumption of the terminal.

In some embodiments, the RRM measurement relaxation criteria include a first criterion and/or a second criterion, the first criterion referring to: and in the first evaluation duration, the change amount of the distance between the position of the terminal equipment and the reference position of the serving cell is smaller than or equal to a first threshold value, and the second criterion refers to that: and in the second evaluation period, the Reference Signal Received Power (RSRP) variation of the terminal equipment in the service cell is smaller than a second threshold value.

The reference location is illustratively informed to the terminal device by the network by means of broadcasting, i.e. how the network device determines the reference location depends on the network device implementation, the solution is not limited. For example, in one implementation, the reference location may be a center location of the serving cell.

Illustratively, the first criterion refers to: and within the first evaluation duration, the variation of the distance from the position of the terminal equipment to the central position of the service cell is smaller than or equal to the first threshold value.

The reference location may be preset or configured or indicated by the network device, for example.

It should be noted that, in the embodiment of the present application, the "preset" may be implemented by pre-storing a corresponding code, a table, or other manners that may be used to indicate relevant information in a device (including, for example, a terminal device and a network device), and the specific implementation manner of the present application is not limited. Such as preset, may refer to what is defined in the protocol. Alternatively, the "protocol" may refer to a standard protocol in the communication field, and may include, for example, an LTE protocol, an NR protocol, and related protocols applied to a future communication system, which is not particularly limited by the present application.

The first criterion may be, for example, a terminal location based low mobility criterion, that is, the terminal location based low mobility criterion refers to: and within the first evaluation duration, the variation of the distance from the position of the terminal equipment to the reference position of the serving cell is smaller than or equal to the first threshold value.

The first criterion may be, for example, a terminal location based stationary criterion, that is, the terminal location based stationary criterion refers to: and within the first evaluation duration, the variation of the distance from the position of the terminal equipment to the reference position of the serving cell is smaller than or equal to the first threshold value.

Illustratively, the threshold value used by the terminal location based low mobility criterion is different from the threshold value used by the terminal location based stationary criterion. In other words, the first threshold value may be a first value for the terminal location based low mobility criterion and a second value for the terminal location based stationary criterion. Alternatively, the first value and the second value may be different.

The second criterion may be, for example, the RSRP-based low mobility criterion or the stationary criterion referred to above.

In some embodiments, the first criterion refers to: the terminal device satisfies the following conditions within the first evaluation duration:

(D ₁-D _ref)≤D _{thresholdDelta}；

Wherein D ₁ represents a distance from the location of the terminal device to the reference location; d _ref is a distance reference value, and D _{thresholdDelta} represents the first threshold value.

Illustratively, assume that the first evaluation period is noted as T _SearchDelta; if the first terminal device satisfies (D ₁-D _ref)≤D _{thresholdDelta}) in T _SearchDelta, the first terminal device satisfies the first criterion, otherwise, the first terminal device does not satisfy the first criterion, or, if the change amount of the distance from the location of the first terminal device to the reference location of the serving cell is less than or equal to a first threshold D _{thresholdDelta} in T _SearchDelta, the first terminal device is considered to satisfy the first criterion, otherwise, the first terminal device does not satisfy the first criterion.

As shown in fig. 8, assuming that the reference location is a center location of the serving cell, D ₁ represents a distance between a location of the terminal device and the center location, and D _ref may be a reference radius. The difference between the maximum value of D ₁ and D _ref when the first criterion is met is D _{thresholdDelta}.

In some embodiments, the method 200 may further comprise:

The value of D _ref is set to the value of D ₁ when at least one of the following is satisfied:

When the terminal equipment selects or reselects to a new cell;

(D _ref-D ₁)>0；

the duration that the terminal device meets the first criterion is less than the first evaluation duration.

Of course, in other alternative embodiments, the value of D _ref may be determined in other manners, which is not particularly limited by the present application. For example, when the duration of the terminal device satisfying the first criterion is less than the first evaluation duration and is greater than or equal to a certain threshold value, the value of D _ref is set to the value of D ₁.

In some embodiments, the second criterion refers to: the terminal device satisfies the following conditions within the second evaluation duration:

(S _rxlevRef–S _rxlev)＜S _SearchDeltaP；

Wherein S _rxlevRef represents an RSRP reference measurement value of the terminal device in the serving cell; s _rxlev represents the RSRP measurement of the terminal device in the serving cell and S _SearchDeltaP represents the second threshold value.

For example, it is assumed that the second evaluation period is denoted as T _SearchDeltaP, and in T _SearchDeltaP, if the first terminal device satisfies (S _rxlevRef–S _rxlev)＜S _SearchDeltaP, the first terminal device satisfies the second criterion, otherwise, the first terminal device does not satisfy the second criterion, or in T _SearchDeltaP, if the RSRP variation of the first terminal device on the serving cell is smaller than S _SearchDeltaP, the first terminal device is considered to satisfy the second criterion, otherwise, the first terminal device does not satisfy the second criterion.

In some embodiments, the S210 may include:

Determining, based on the location information of the first terminal device, that the first terminal device meets the RRM measurement relaxation criterion if the first terminal device meets the first criterion or the second criterion; or (b)

Based on the location information of the first terminal device, determining that the first terminal device meets the RRM measurement relaxation criterion in case the first terminal device meets the first criterion and the second criterion.

For example, if the network device only configures the first criterion, it is determined, based on the location information of the first terminal device, that the first terminal device meets the RRM measurement relaxation criterion if the first terminal device meets the first criterion.

Illustratively, if the network device configures the first criterion and the second criterion, as an implementation, determining, based on the location information of the first terminal device, that the first terminal device meets the RRM measurement relaxation criterion if the first terminal device meets the first criterion or the second criterion; as another implementation, based on the location information of the first terminal device, it is determined that the first terminal device satisfies the RRM measurement relaxation criterion if the first terminal device satisfies the first criterion and the second criterion.

Illustratively, the first terminal device satisfies the RRM measurement relaxation criterion, including the following three cases:

Case 1:

The first terminal device only meets the first criterion.

That is, assume that the first evaluation period is noted as T _SearchDelta; the first terminal device meeting the RRM measurement relaxation criterion refers to: the first terminal device satisfies (D ₁-D _ref)≤D _{thresholdDelta}) within T _SearchDelta.

Case 2:

the first terminal device meets the first criterion or the second criterion.

That is, assuming that the second evaluation period is denoted as T _SearchDeltaP, and the first evaluation period is denoted as T _SearchDelta; the first terminal device meeting the RRM measurement relaxation criterion refers to: the first terminal device is satisfied within T _SearchDeltaP (S _rxlevRef–S _rxlev)＜S _SearchDeltaP; or the first terminal device is satisfied within T _SearchDelta (D ₁-D _ref)≤D _{thresholdDelta}).

Case 3:

the first terminal device satisfies the first criterion and the second criterion.

That is, assuming that the first evaluation period is denoted as T _SearchDelta and the second evaluation period is denoted as T _SearchDeltaP; the first terminal device meeting the RRM measurement relaxation criterion refers to: the first terminal device satisfies within T _SearchDeltaP (S _rxlevRef–S _rxlev)＜S _SearchDeltaP, and the first terminal device satisfies within T _SearchDelta (D ₁-D _ref)≤D _{thresholdDelta}).

In some embodiments, the S210 may include:

And determining that the first terminal equipment meets the RRM measurement relaxation criterion under the condition that the first terminal equipment meets the first criterion in a first time period and the first terminal equipment meets the second criterion in a second time period based on the position information of the first terminal equipment.

Illustratively, the first time period and the second time period are the same or different.

In some embodiments, the first time period and the second time period are the same if the first evaluation duration is equal to the second evaluation duration.

For example, if the first evaluation duration is equal to the second evaluation duration, the first terminal device determines, based on the location information of the first terminal device, that the first terminal device meets the first criterion in a first period of time, and that the first terminal device meets the second criterion in the first period of time, that the first terminal device meets the RRM measurement relaxation criterion.

For example, if the first criterion and the second criterion share an evaluation duration, the first terminal device determines that the first terminal device satisfies the RRM measurement relaxation criterion based on the location information of the first terminal device, if the first terminal device satisfies the first criterion within a first period of time, and if the first terminal device satisfies the second criterion within the first period of time.

For example, in case the first terminal device obtains available location information at the current location, it is determined whether the first terminal device meets the RRM measurement relaxation criterion based on the first criterion. In other words, the first terminal device may determine whether the first terminal device satisfies the RRM measurement relaxation criterion based on the first criterion only if the first terminal device is able to acquire the location information of the first terminal device. Further, in the case that the first terminal device cannot acquire the location information of the first terminal device, the first terminal device rolls back to determining whether the first terminal device meets the RRM measurement relaxation criterion based on the second criterion.

In some embodiments, the method 200 may further comprise:

Receiving first information;

Wherein the first information includes at least one of: the related information of the first criterion and the related information of the second criterion; the related information of the first criterion includes the first threshold value; the related information of the second criterion includes the second evaluation duration and the second threshold value.

In some embodiments, the information related to the first criterion includes the first evaluation duration.

In some embodiments, if the related information of the first criterion does not include the first evaluation duration, the first evaluation duration is determined according to the second evaluation duration.

Illustratively, the second evaluation period is taken as the first evaluation period.

In one embodiment, the first and second evaluation durations are equal or unequal.

Illustratively, the first information may include the following information:

a) Related information of the first criterion, including the first threshold value;

b) Related information of the second criterion, which includes the second evaluation duration and the second threshold value;

The first evaluation duration may reuse the second evaluation duration included in the second criterion related information, or may be an evaluation duration configured separately for the first criterion, that is, the first evaluation duration may not be included in the first criterion related information and the second evaluation duration included in the second criterion related information may be used as the first evaluation duration, or the first evaluation duration may be included in the first criterion related information.

In some embodiments, if the first information includes information related to the first criterion and does not include information related to the second criterion, the first terminal device meeting the RRM measurement relaxation criterion includes the first terminal device meeting the first criterion.

In this embodiment, if the network device configures only the information related to the first criterion for the first terminal device, when the first terminal device only meets the first criterion, it is indicated that the first terminal device meets the RRM measurement relaxation criterion, which is favorable for simplifying implementation of terminal device measurement and improving system performance.

In some embodiments, if the first information includes information related to the first criterion and information related to the second criterion, the first information further includes first indication information; wherein the first indication information is used for indicating that the terminal equipment meets the RRM measurement relaxation criterion, including that the terminal equipment meets the first criterion or the second criterion, or the first indication information is used for indicating that the terminal equipment meets the RRM measurement relaxation criterion, including that the terminal equipment meets the first criterion and the second criterion.

In this embodiment, if the network device configures, for the first terminal device, the related information of the first criterion and the related information of the second criterion at the same time, the network device may further configure the first indication information for the terminal device, so as to improve flexibility of the RRM measurement relaxation criterion.

In some embodiments, the first information is carried in a broadcast message.

In some embodiments, the first criterion and the second criterion are both low mobility criteria or the first criterion and the second criterion are both stationary criteria.

In some embodiments, the RRM measurement relaxation criteria include a third criterion and/or a fourth criterion, the third criterion referring to: the distance between the position of the terminal equipment and the reference position of the service cell is smaller than or equal to a third threshold value, and the fourth criterion refers to: the measured value of the reference signal received power RSRP of the terminal device in the serving cell is greater than a fourth threshold value, and the measured value of the reference signal received quality RSRQ of the terminal device in the serving cell is greater than the fifth threshold value if the network device is configured with the fifth threshold value.

Illustratively, the third criterion refers to: and the distance between the position of the terminal equipment and the central position of the service cell is smaller than or equal to the third threshold value.

The third criterion may be, for example, a terminal location based non-cell edge criterion, that is, the terminal location based non-cell edge criterion refers to: and the distance between the position of the terminal equipment and the reference position of the service cell is smaller than or equal to the third threshold value.

The fourth criterion may be, for example, the RSRP and/or RSRQ-based non-cell edge criterion referred to above.

In some embodiments, the third criterion refers to: the terminal device satisfies the following conditions:

D ₁≤D _threshold；

Wherein D ₁ represents a distance from the location of the terminal device to the reference location; d _threshold represents the third threshold value.

Illustratively, if the first terminal device satisfies D ₁≤D _threshold, the first terminal device satisfies the third criterion, otherwise, the first terminal device does not satisfy the third criterion.

As shown in fig. 9, assuming that the reference location is a center location of the serving cell, D ₁ represents a distance between a location of the terminal device and the center location, where a maximum value of D ₁ may be D _threshold when the third criterion is satisfied.

In some embodiments, the fourth criterion refers to: the terminal equipment satisfies S _P＞S _SearchP; and in case the network device is configured with a fifth threshold, the terminal device satisfies S _Q＞S _SearchQ; wherein S _P represents the RSRP measurement value of the terminal device in the serving cell; s _SearchP represents the fourth threshold value, S _Q represents an RSRQ measurement of the terminal device in the serving cell; s _SearchQ represents the fifth threshold value.

Illustratively, if the first terminal device satisfies S _P＞S _SearchP and S _Q＞S _SearchQ (if the network device is configured S _SearchQ), the first terminal device satisfies the fourth criterion, otherwise the first terminal device does not satisfy the fourth criterion.

In some embodiments, the S210 may include:

determining, based on the location information of the first terminal device, that the first terminal device meets the RRM measurement relaxation criterion if the first terminal device meets the third criterion or the fourth criterion; or (b)

Based on the location information of the first terminal device, determining that the first terminal device meets the RRM measurement relaxation criterion in case the first terminal device meets the third criterion and the fourth criterion.

For example, if the network device only configures the third criterion, it is determined, based on the location information of the first terminal device, that the first terminal device meets the RRM measurement relaxation criterion if the first terminal device meets the third criterion.

Illustratively, if the network device configures the third criterion and the fourth criterion, as an implementation, determining, based on the location information of the first terminal device, that the first terminal device meets the RRM measurement relaxation criterion if the first terminal device meets the third criterion or the fourth criterion; as another implementation, based on the location information of the first terminal device, it is determined that the first terminal device satisfies the RRM measurement relaxation criterion if the first terminal device satisfies the third criterion and the fourth criterion.

Case 1:

the first terminal device only meets the third criterion.

That is, the first terminal device meeting the RRM measurement relaxation criterion means: the first terminal device satisfies D ₁≤D _threshold.

Case 2:

the first terminal device meets the first criterion or the second criterion.

That is, the first terminal device meeting the RRM measurement relaxation criterion means: the first terminal device satisfies D ₁≤D _threshold; or the first terminal device satisfies S _P＞S _SearchP and S _Q＞S _SearchQ (if the network device is configured with S _SearchQ).

Case 3:

That is, the first terminal device meeting the RRM measurement relaxation criterion means: the first terminal device satisfies D ₁≤D _threshold; and, the first terminal device satisfies S _P＞S _SearchP and S _Q＞S _SearchQ (if the network device is configured with S _SearchQ).

For example, in case the first terminal device obtains available location information at the current location, it is determined whether the first terminal device meets the RRM measurement relaxation criterion based on the third criterion. In other words, the first terminal device may determine whether the first terminal device satisfies the RRM measurement relaxation criterion based on the third criterion only if the first terminal device is able to acquire the location information of the first terminal device. Further, in the case that the first terminal device cannot acquire the location information of the first terminal device, the first terminal device rolls back to determining whether the first terminal device meets the RRM measurement relaxation criterion based on the fourth criterion.

In some embodiments, the method 200 may further comprise:

Receiving second information;

Wherein the second information includes at least one of: the related information of the third criterion and the related information of the fourth criterion; the related information of the third criterion includes the third threshold value; the related information of the fourth criterion comprises the fourth threshold value and/or the fifth threshold value.

Illustratively, the third information may include the following information:

a) Related information of the third criterion, including the third threshold value;

b) And the fourth criterion related information comprises the fourth threshold value and/or the fifth threshold value.

In some embodiments, if the second information includes information related to the third criterion, the first terminal device meeting the RRM measurement relaxation criterion includes the first terminal device meeting the third criterion.

In this embodiment, if the network device configures only the information related to the third criterion for the first terminal device, when the first terminal device only meets the third criterion, it is indicated that the first terminal device meets the RRM measurement relaxation criterion, which is favorable for simplifying implementation of terminal device measurement and improving system performance.

In some embodiments, if the second information includes information related to the third criterion and information related to the fourth criterion, the second information further includes second indication information; wherein the second indication information is used for indicating that the terminal equipment meets the RRM measurement relaxation criterion, including that the terminal equipment meets the third criterion or the fourth criterion, or the second indication information is used for indicating that the terminal equipment meets the RRM measurement relaxation criterion, including that the terminal equipment meets the third criterion and the fourth criterion.

In this embodiment, if the network device configures the related information of the third criterion and the related information of the fourth criterion for the first terminal device at the same time, the network device may further configure the second indication information for the terminal device, so as to improve flexibility of the RRM measurement relaxation criterion.

In some embodiments, the second information is carried in a broadcast message.

In some embodiments, the third criterion and the fourth criterion are both non-cell edge criteria.

In some embodiments, the S210 may include:

And under the condition that the first terminal equipment acquires available position information at the current position, determining whether the first terminal equipment meets the RRM measurement relaxation criterion or not based on the available position information.

In other words, the first terminal device may determine whether the first terminal device satisfies the RRM measurement relaxation criterion based on the location information of the first terminal device only if the first terminal device is able to acquire the location information of the first terminal device.

The following describes the solution of the present application with reference to specific examples:

Example 1:

In this embodiment, a low mobility criterion based on terminal location is introduced for NTN scenario, and the first terminal device evaluates whether the RRM measurement relaxation criterion is satisfied based on the amount of change in the distance between the first terminal device and the reference location of the serving cell over a period of time.

Specifically, the method comprises the following steps:

step 1:

The first terminal device receives RRM measurement relaxation related information for a non-connected terminal device, which is broadcasted by a network device, and the method comprises the following steps:

a) The related information of the low mobility criterion based on the terminal position comprises a threshold value D _{thresholdDelta_1};

b) Related information of the RSRP-based low mobility criterion, including an evaluation duration T _SearchDeltaP and a threshold value S _SearchDeltaP;

Wherein, for the evaluation duration T _{SearchDelta_1} corresponding to the low mobility criterion based on the terminal location, T _SearchDeltaP included in the low mobility criterion related information based on the RSRP may be reused, or the evaluation duration may be independently configured for the low mobility criterion based on the terminal location. In other words, T _{SearchDelta_1} may not be included in the related information of the low mobility criterion based on the terminal location, T _SearchDeltaP included in the related information of the low mobility criterion based on the RSRP may be used as T _{SearchDelta_1}, and T _{SearchDelta_1} may also be included in the related information of the low mobility criterion based on the terminal location.

That is, if the first criterion referred to above is a low mobility criterion based on the terminal location, the first evaluation duration referred to above is T _{SearchDelta_1}, and the first threshold referred to above is D _{thresholdDelta_1}.

Step 2:

The first terminal device may determine whether the low mobility criterion based on the terminal location is satisfied based on an amount of change in a distance between a location of the first terminal device and a reference location of a serving cell. Specifically, if the first terminal device is within T _{SearchDelta_1}, if the amount of change of the distance between the location of the first terminal device and the reference location of the serving cell is less than or equal to D _{thresholdDelta_1}, then the first terminal device is considered to satisfy the low mobility criterion based on the terminal location, otherwise, the first terminal device does not satisfy the low mobility criterion based on the terminal location.

Specifically, meeting the low mobility criterion based on the terminal position refers to: the terminal device satisfies the following conditions within T _{SearchDelta_1}:

(D ₁-D _ref)≤D _{thresholdDelta_1}；

Wherein D ₁ represents a distance from the location of the terminal device to the reference location; d _ref is a distance reference value.

In some embodiments, the value of D _ref is set to the value of D ₁ when at least one of the following is satisfied:

When the terminal equipment selects or reselects to a new cell;

(D _ref-D ₁)>0；

The duration of the terminal device meeting the low mobility criterion based on the terminal position is less than T _{SearchDelta_1}.

Step 3:

In case the network device is configured with the terminal location based low mobility criterion, determining whether the first terminal device fulfils the RRM measurement relaxation criterion based on the terminal location based low mobility criterion. Optionally, the first terminal device meets the RRM measurement relaxation criterion, including the following three cases:

Case 1:

Based on the location information of the first terminal device, it is determined that the first terminal device satisfies the RRM measurement relaxation criterion in case the first terminal device satisfies only the terminal location based low mobility criterion. That is, the first terminal device meeting the RRM measurement relaxation criterion means: the first terminal device satisfies (D ₁-D _ref)≤D _{thresholdDelta_1}) within T _{SearchDelta_1}.

Case 2:

Based on the location information of the first terminal device, determining that the first terminal device meets the RRM measurement relaxation criterion in case the first terminal device meets the terminal location based low mobility criterion or the RSRP based low mobility criterion. That is, the first terminal device meeting the RRM measurement relaxation criterion means: the first terminal device is satisfied within T _SearchDeltaP (S _rxlevRef–S _rxlev)＜S _SearchDeltaP, or the first terminal device is satisfied within T _{SearchDelta_1} (D ₁-D _ref)≤D _{thresholdDelta_1}).

Case 3:

Based on the location information of the first terminal device, determining that the first terminal device meets the RRM measurement relaxation criterion in case the first terminal device meets the terminal location based low mobility criterion and the RSRP based low mobility criterion. That is, the first terminal device meeting the RRM measurement relaxation criterion means: the first terminal device satisfies within T _SearchDeltaP (S _rxlevRef–S _rxlev)＜S _SearchDeltaP, and the first terminal device satisfies within T _{SearchDelta_1} (D ₁-D _ref)≤D _{thresholdDelta_1}).

It should be noted that, with the case 1 described above, the case 2 or the case 3 may be determined by the network configuration.

Case 1 is employed, for example, if the network device is configured with only terminal location-based low mobility criteria and is not configured with RSRP-based low mobility criteria. As another example, if the network device is configured with both terminal location based low mobility criteria and RSRP based low mobility criteria, the network device may further explicitly indicate whether case 2 or case 3 is used, the explicit indication information being carried in a system broadcast message. Optionally, the first terminal device can use the low mobility criterion based on terminal location only if there is currently available location information. That is, if the first terminal device does not currently have available location information, the first terminal device rolls back to the low mobility criterion using RSRP.

Example 2:

in this embodiment, a rest criterion based on terminal positions is introduced for NTN scenes, and the first terminal device evaluates whether the RRM measurement relaxation criterion is satisfied or not based on the amount of change in the distance between the first terminal device and the reference position of the serving cell in a period of time.

Specifically, the method comprises the following steps:

step 1:

a) The relevant information of the static criterion based on the terminal position comprises a threshold value D _{thresholdDelta_2};

b) Related information of the RSRP-based rest criterion, which includes an evaluation duration T _SearchDeltaP and a threshold value S _SearchDeltaP;

Wherein, for the evaluation duration T _{SearchDelta_2} corresponding to the terminal position-based stillness criterion, T _SearchDeltaP included in the RSRP-based stillness criterion related information may be reused, or the evaluation duration may be configured separately for the terminal position-based stillness criterion; that is, T _{SearchDelta_2} may not be included in the relevant information of the terminal location based stillness criterion, T _SearchDeltaP included in the relevant information of the RSRP based stillness criterion may be used as T _{SearchDelta_2}, and T _{SearchDelta_2} may be included in the relevant information of the terminal location based stillness criterion.

That is, if the first criterion referred to above is a stationary criterion based on the terminal position, the first evaluation duration referred to above is T _{SearchDelta_2}, and the first threshold referred to above is D _{thresholdDelta_2}.

Step 2:

The first terminal device may determine whether the terminal location-based stillness criterion is satisfied based on a change amount of a distance between a location of the first terminal device and a reference location of a serving cell. Specifically, if the first terminal device is within T _{SearchDelta_2}, if the amount of change of the distance between the location of the first terminal device and the reference location of the serving cell is less than or equal to D _{thresholdDelta_2}, then the first terminal device is considered to satisfy the terminal location-based stillness criterion, otherwise, the first terminal device does not satisfy the terminal location-based stillness criterion.

Specifically, meeting the terminal position-based rest criterion refers to: the terminal device satisfies the following conditions within T _{SearchDelta_2}:

(D ₁-D _ref)≤D _{thresholdDelta_2}；

When the terminal equipment selects or reselects to a new cell;

(D _ref-D ₁)>0；

The duration of the terminal device meeting the terminal position based rest criterion is less than T _{SearchDelta_2}.

Step 3:

In case the network device is configured with the terminal location based rest criterion, determining whether the first terminal device fulfils the RRM measurement relaxation criterion based on the terminal location based rest criterion. Optionally, the first terminal device meets the RRM measurement relaxation criterion, including the following three cases:

Case 1:

Based on the location information of the first terminal device, determining that the first terminal device meets the RRM measurement relaxation criterion in case the first terminal device only meets the terminal location based rest criterion. That is, the first terminal device meeting the RRM measurement relaxation criterion means: the first terminal device satisfies (D ₁-D _ref)≤D _{thresholdDelta_2}) within T _{SearchDelta_2}.

Case 2:

Based on the location information of the first terminal device, determining that the first terminal device meets the RRM measurement relaxation criterion in case the first terminal device meets the terminal location based rest criterion or the RSRP based rest criterion. That is, the first terminal device meeting the RRM measurement relaxation criterion means: the first terminal device is satisfied within T _SearchDeltaP (S _rxlevRef–S _rxlev)＜S _SearchDeltaP, or the first terminal device is satisfied within T _{SearchDelta_2} (D ₁-D _ref)≤D _{thresholdDelta_2}).

Case 3:

Based on the location information of the first terminal device, determining that the first terminal device meets the RRM measurement relaxation criterion in case the first terminal device meets the terminal location based rest criterion and the RSRP based rest criterion. That is, the first terminal device meeting the RRM measurement relaxation criterion means: the first terminal device satisfies within T _SearchDeltaP (S _rxlevRef–S _rxlev)＜S _SearchDeltaP, and the first terminal device satisfies within T _{SearchDelta_2} (D ₁-D _ref)≤D _{thresholdDelta_2}).

Case 1 is employed, for example, if the network device is configured with only terminal location based stillness criteria and is not configured with RSRP based stillness criteria. As another example, if the network device is configured with both terminal location based and RSRP based quiescent criteria, the network device may further explicitly indicate whether case 2 or case 3 is used, the explicit indication information being carried in a system broadcast message. Optionally, the first terminal device can use the terminal location based stillness criterion only if there is currently available location information. That is, if the first terminal device does not currently have available location information, the first terminal device rolls back to the stationary criterion using RSRP.

Example 3:

In this embodiment, a criterion of not being at a cell edge based on a terminal position is introduced for the NTN scenario, and the first terminal device evaluates whether the RRM measurement relaxation criterion is satisfied based on a change amount of a distance between the first terminal device and a reference position of a serving cell in a period of time.

Specifically, the method comprises the following steps:

step 1:

a) The related information based on the terminal position and not on the cell edge criterion comprises a threshold value D _threshold;

b) The RSRP/RSRQ based correlation information that is not on the cell edge criterion includes a threshold S _SearchP and a threshold S _SearchQ.

Step 2:

The first terminal device may determine whether the criterion for not being at the cell edge based on the terminal position is satisfied based on a distance between a location of the first terminal device and a reference location of a serving cell. Specifically, if the distance from the location of the first terminal device to the reference location of the serving cell is less than or equal to D _threshold, the first terminal device is considered to meet the criterion of the non-location cell edge based on the terminal location, otherwise, the first terminal device does not meet the criterion of the non-location cell edge based on the terminal location.

Specifically, meeting the criterion of not being at the cell edge based on the terminal position refers to: the terminal device satisfies the following conditions within T _SearchDelta:

D ₁≤D _threshold；

Wherein D ₁ represents the distance between the location of the terminal device and the reference location.

Step 3:

In case the network device is configured with the terminal location based non-cell edge criterion, determining whether the first terminal device fulfils the RRM measurement relaxation criterion based on the terminal location based non-cell edge criterion. Optionally, the first terminal device meets the RRM measurement relaxation criterion, including the following three cases:

Case 1:

Based on the location information of the first terminal device, determining that the first terminal device meets the RRM measurement relaxation criterion in case the first terminal device only meets the terminal location based non-cell edge criterion. That is, the first terminal device meeting the RRM measurement relaxation criterion means: the first terminal device satisfies D ₁≤D _threshold.

Case 2:

And determining that the first terminal equipment meets the RRM measurement relaxation criterion under the condition that the first terminal equipment meets the criterion of the non-cell edge based on the terminal position or the criterion of the non-cell edge based on the RSRP/RSRQ based on the position information of the first terminal equipment. That is, the first terminal device meeting the RRM measurement relaxation criterion means: the first terminal device satisfies D ₁≤D _threshold; or the first terminal device satisfies S _P＞S _SearchP and S _Q＞S _SearchQ (if the network device is configured with S _SearchQ).

Case 3:

Based on the location information of the first terminal device, determining that the first terminal device meets the RRM measurement relaxation criterion in case the first terminal device meets the terminal location based non-cell edge criterion and the RSRP/RSRQ based non-cell edge criterion. That is, the first terminal device meeting the RRM measurement relaxation criterion means: the first terminal device satisfies D ₁≤D _threshold; and, the first terminal device satisfies S _P＞S _SearchP and S _Q＞S _SearchQ (if the network device is configured with S _SearchQ).

Case 1 is employed, for example, if the network device is configured with only the terminal location-based non-cell-edge criteria and is not configured with the RSRP/RSRQ-based non-cell-edge criteria. For another example, if the network device is configured with both the terminal location based non-cell edge criteria and the RSRP/RSRQ based non-cell edge criteria, the network device may further explicitly indicate whether use case 2 or case 3, the explicit indication information being carried in the system broadcast message. Alternatively, the first terminal device can use the non-cell edge criterion based on the terminal location only if there is currently available location information. That is, if the first terminal device does not currently have available location information, the first terminal device rolls back to the non-cell edge criterion using RSRP.

It should be noted that, in the present application, a certain criterion (for example, a first criterion, a second criterion, a third criterion, or a fourth criterion) refers to that the terminal device satisfies a corresponding certain formula or a certain condition within an evaluation duration, which can be understood as: the present application is not particularly limited in that a certain criterion is satisfied when a duration of a certain formula or a certain condition is satisfied by the terminal device and reaches a corresponding evaluation duration.

Taking a first criterion as an example, the first criterion refers to: the terminal device satisfies (D ₁-D _ref)≤D _{thresholdDelta}) for a first evaluation period of time, assuming that the first evaluation period of time is noted as T _SearchDelta, the first criterion may refer to the terminal device satisfying (D ₁-D _ref)≤D _{thresholdDelta}) at T _SearchDelta, or it may also be understood that the terminal device satisfies (D ₁-D _ref)≤D _{thresholdDelta} satisfies the first criterion when the duration of time reaches T _SearchDelta.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application. For example, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further. As another example, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which should also be regarded as the disclosure of the present application.

It should be further understood that, in the various method embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application. Further, in the embodiment of the present application, the terms "downlink" and "uplink" are used to indicate a transmission direction of a signal or data, where "downlink" is used to indicate that the transmission direction of the signal or data is a first direction of a user equipment transmitted from a station to a cell, and "uplink" is used to indicate that the transmission direction of the signal or data is a second direction of a user equipment transmitted from a cell to a station, for example, "downlink signal" indicates that the transmission direction of the signal is the first direction. In addition, in the embodiment of the present application, the term "and/or" is merely an association relationship describing the association object, which means that three relationships may exist. Specifically, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The wireless communication method according to the embodiment of the present application is described in detail from the point of view of the terminal device in the above with reference to fig. 7 to 9, and the wireless communication method according to the embodiment of the present application will be described from the point of view of the network device in the below with reference to fig. 10.

Fig. 10 is a schematic flow chart of a wireless communication method 300 provided by an embodiment of the present application. The method 300 may be performed by a network device. Such as network device 120 as shown in fig. 1 or satellite 1102 as shown in fig. 2-3.

As shown in fig. 10, the method 300 may include:

s310, sending the related information of the radio resource management RRM measurement relaxation criterion;

(D ₁-D _ref)≤D _{thresholdDelta}；

In some embodiments, the method 300 may further comprise:

When the terminal equipment selects or reselects to a new cell;

(D _ref-D ₁)>0；

(S _rxlevRef–S _rxlev)＜S _SearchDeltaP；

In some embodiments, the first terminal device satisfies the RRM measurement relaxation criterion, including at least one of:

the first terminal device meets the first criterion or the second criterion; or (b)

In some embodiments, the first terminal device satisfying the first criterion and the second criterion comprises: the first terminal device satisfies the first criterion in a first time period, and the first terminal device satisfies the second criterion in a second time period.

In some embodiments, the method 300 may further comprise:

Transmitting first information;

In some embodiments, the first information is carried in a broadcast message.

D ₁≤D _threshold；

the first terminal device meets the third criterion or the fourth criterion; or (b)

The first terminal device satisfies the third criterion and the fourth criterion.

In some embodiments, the method 300 may further comprise:

Transmitting second information;

In some embodiments, the second information is carried in a broadcast message.

It should be understood that the steps in the method 300 may refer to corresponding steps in the method 200, and are not described herein for brevity.

The method embodiment of the present application is described in detail above with reference to fig. 1 to 10, and the apparatus embodiment of the present application is described in detail below with reference to fig. 11 to 14.

Fig. 11 is a schematic block diagram of a first terminal device 400 according to an embodiment of the present application.

As shown in fig. 11, the first terminal device 400 may include:

A determining unit 410, configured to determine, based on the location information of the first terminal device, whether the first terminal device meets a radio resource management RRM measurement relaxation criterion;

And a measurement unit 420, configured to initiate a relaxation RRM measurement if the RRM measurement relaxation criterion is met.

(D ₁-D _ref)≤D _{thresholdDelta}；

In some embodiments, the determining unit 410 may be further configured to:

When the terminal equipment selects or reselects to a new cell;

(D _ref-D ₁)>0；

(S _rxlevRef–S _rxlev)＜S _SearchDeltaP；

In some embodiments, the determining unit 410 may be specifically configured to:

In some embodiments, the determining unit 410 may be further configured to:

Receiving first information;

In some embodiments, the first information is carried in a broadcast message.

D ₁≤D _threshold；

In some embodiments, the determining unit 410 may be further configured to:

Receiving second information;

In some embodiments, the second information is carried in a broadcast message.

It should be understood that apparatus embodiments and method embodiments may correspond with each other and that similar descriptions may refer to the method embodiments. Specifically, the first terminal device 400 shown in fig. 11 may correspond to a corresponding main body in the method 200 for executing the embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the first terminal device 400 are respectively for implementing the corresponding flow in each method in fig. 7, and are not repeated herein for brevity.

Fig. 12 is a schematic block diagram of a network device 500 of an embodiment of the present application.

As shown in fig. 12, the network device 500 may include:

A transmitting unit 510 for transmitting information about a radio resource management RRM measurement relaxation criterion;

(D ₁-D _ref)≤D _{thresholdDelta}；

When the terminal equipment selects or reselects to a new cell;

(D _ref-D ₁)>0；

(S _rxlevRef–S _rxlev)＜S _SearchDeltaP；

In some embodiments, the sending unit 510 may be further configured to:

Transmitting first information;

In some embodiments, the first information is carried in a broadcast message.

D ₁≤D _threshold；

In some embodiments, the sending unit 510 may be further configured to:

Transmitting second information;

In some embodiments, the second information is carried in a broadcast message.

It should be understood that apparatus embodiments and method embodiments may correspond with each other and that similar descriptions may refer to the method embodiments. Specifically, the network device 500 shown in fig. 12 may correspond to a corresponding main body in performing the method 300 of the embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the network device 500 are respectively for implementing the corresponding flow in each method in fig. 10, which are not described herein for brevity.

The communication device according to the embodiment of the present application is described above from the perspective of the functional module in conjunction with the accompanying drawings. It should be understood that the functional module may be implemented in hardware, or may be implemented by instructions in software, or may be implemented by a combination of hardware and software modules. Specifically, each step of the method embodiment in the embodiment of the present application may be implemented by an integrated logic circuit of hardware in a processor and/or an instruction in a software form, and the steps of the method disclosed in connection with the embodiment of the present application may be directly implemented as a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor. Alternatively, the software modules may be located in a well-established storage medium in the art such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, and the like. The storage medium is located in a memory, and the processor reads information in the memory, and in combination with hardware, performs the steps in the above method embodiments.

For example, the determination unit 410 referred to above may be implemented by a processor, and the measurement unit 420 or the transmission unit 510 referred to above may be implemented by a transceiver.

Fig. 13 is a schematic structural diagram of a communication apparatus 600 of an embodiment of the present application.

As shown in fig. 13, the communication device 600 may include a processor 610.

Wherein the processor 610 may call and run a computer program from a memory to implement the methods of embodiments of the present application.

As shown in fig. 13, the communication device 600 may also include a memory 620.

The memory 620 may be used to store instruction information, and may also be used to store code, instructions, etc. for execution by the processor 610. Wherein the processor 610 may call and run a computer program from the memory 620 to implement the method in an embodiment of the application. The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

As shown in fig. 13, the communication device 600 may also include a transceiver 630.

The processor 610 may control the transceiver 630 to communicate with other devices, and in particular, may send information or data to other devices or receive information or data sent by other devices. Transceiver 630 may include a transmitter and a receiver. Transceiver 630 may further include antennas, the number of which may be one or more.

It should be appreciated that the various components in the communication device 600 are connected by a bus system that includes a power bus, a control bus, and a status signal bus in addition to a data bus.

It should also be understood that the communication device 600 may be a first terminal device according to an embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the first terminal device in each method according to an embodiment of the present application, that is, the communication device 600 according to an embodiment of the present application may correspond to the first terminal device 400 according to an embodiment of the present application, and may correspond to a corresponding main body in performing the method 200 according to an embodiment of the present application, which is not described herein for brevity. Similarly, the communication device 600 may be a network device according to an embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the network device in each method according to the embodiment of the present application. That is, the communication device 600 in the embodiment of the present application may correspond to the network device 500 in the embodiment of the present application, and may correspond to a corresponding main body in performing the method 300 in the embodiment of the present application, which is not described herein for brevity.

In addition, the embodiment of the application also provides a chip.

For example, the chip may be an integrated circuit chip having signal processing capabilities, and the methods, steps and logic blocks disclosed in the embodiments of the present application may be implemented or performed. The chip may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc. Alternatively, the chip may be applied to various communication devices so that the communication device mounted with the chip can perform the methods, steps and logic blocks disclosed in the embodiments of the present application.

Fig. 14 is a schematic structural diagram of a chip 700 according to an embodiment of the present application.

As shown in fig. 14, the chip 700 includes a processor 710.

Wherein the processor 710 may call and run computer programs from memory to implement the methods of embodiments of the present application.

As shown in fig. 14, the chip 700 may further include a memory 720.

Wherein the processor 710 may call and run a computer program from the memory 720 to implement the method in an embodiment of the application. The memory 720 may be used for storing instruction information, and may also be used for storing code, instructions, etc. for execution by the processor 710. Memory 720 may be a separate device from processor 710 or may be integrated into processor 710.

As shown in fig. 14, the chip 700 may further include an input interface 730.

The processor 710 may control the input interface 730 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.

As shown in fig. 14, the chip 700 may further include an output interface 740.

The processor 710 may control the output interface 740 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

It should be understood that the chip 700 may be applied to the network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method of the embodiment of the present application, and may also implement a corresponding flow implemented by the first terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

It should also be appreciated that the various components in the chip 700 are connected by a bus system that includes a power bus, a control bus, and a status signal bus in addition to a data bus.

The processors referred to above may include, but are not limited to:

A general purpose Processor, digital signal Processor (DIGITAL SIGNAL Processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), field programmable gate array (Field Programmable GATE ARRAY, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like.

The processor may be configured to implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory or erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

The above references to memory include, but are not limited to:

Volatile memory and/or nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, DDR SDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCH LINK DRAM, SLDRAM), and Direct memory bus RAM (DR RAM).

It should be noted that the memory described herein is intended to comprise these and any other suitable types of memory.

There is also provided in an embodiment of the present application a computer-readable storage medium storing a computer program. The computer readable storage medium stores one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, enable the portable electronic device to perform the wireless communication method provided by the present application. Optionally, the computer readable storage medium may be applied to a network device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity. Optionally, the computer readable storage medium may be applied to the first terminal device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the first terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

A computer program product, including a computer program, is also provided in an embodiment of the present application. Optionally, the computer program product may be applied to a network device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity. Optionally, the computer program product may be applied to the first terminal device in the embodiment of the present application, and the computer program makes a computer execute a corresponding procedure implemented by the first terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

The embodiment of the application also provides a computer program. The computer program, when executed by a computer, enables the computer to perform the wireless communication method provided by the present application. Optionally, the computer program may be applied to a network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity. Optionally, the computer program may be applied to the first terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the first terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

The embodiment of the present application further provides a communication system, which may include the above-mentioned terminal device and network device, so as to form a communication system 100 as shown in fig. 1, which is not described herein for brevity. It should be noted that the term "system" and the like herein may also be referred to as "network management architecture" or "network system" and the like.

It is also to be understood that the terminology used in the embodiments of the present application and the appended claims is for the purpose of describing particular embodiments only, and is not intended to be limiting of the embodiments of the present application. For example, as used in the embodiments of the application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Those of skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application. If implemented as a software functional unit and sold or used as a stand-alone product, may be stored on a computer readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may be embodied in essence or a part contributing to the prior art or a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.

Those skilled in the art will further appreciate that, for convenience and brevity, specific working procedures of the above-described system, apparatus and unit may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein. In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the division of units or modules or components in the above-described apparatus embodiments is merely a logic function division, and there may be another division manner in actual implementation, for example, multiple units or modules or components may be combined or may be integrated into another system, or some units or modules or components may be omitted or not performed. As another example, the units/modules/components described above as separate/display components may or may not be physically separate, i.e., may be located in one place, or may be distributed over multiple network elements. Some or all of the units/modules/components may be selected according to actual needs to achieve the objectives of the embodiments of the present application. Finally, it is pointed out that the coupling or direct coupling or communication connection between the various elements shown or discussed above can be an indirect coupling or communication connection via interfaces, devices or elements, which can be in electrical, mechanical or other forms.

The foregoing is merely a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the embodiment of the present application, and the changes or substitutions are covered by the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

A method of wireless communication, the method being applicable to a first terminal device, the method comprising:

Determining whether the first terminal device meets a radio resource management, RRM, measurement relaxation criterion based on the location information of the first terminal device;

In case the RRM measurement relaxation criterion is fulfilled, a relaxation RRM measurement is initiated.
The method according to claim 1, wherein the RRM measurement relaxation criteria comprises a first criterion and/or a second criterion, the first criterion being: and in the first evaluation duration, the change amount of the distance between the position of the terminal equipment and the reference position of the serving cell is smaller than or equal to a first threshold value, and the second criterion refers to that: and in the second evaluation period, the Reference Signal Received Power (RSRP) variation of the terminal equipment in the service cell is smaller than a second threshold value.
The method of claim 2, wherein the first criterion is: the terminal device satisfies the following conditions within the first evaluation duration:

(D ₁-D _ref)≤D _{thresholdDelta}；

Wherein D ₁ represents a distance from the location of the terminal device to the reference location; d _ref is a distance reference value, and D _{thresholdDelta} represents the first threshold value.
A method according to claim 3, characterized in that the method further comprises:

The value of D _ref is set to the value of D ₁ when at least one of the following is satisfied:

when the terminal equipment selects or reselects to a new cell;

(D _ref-D ₁)>0；

The duration that the terminal device meets the first criterion is less than a first evaluation duration.
The method according to any one of claims 2 to 4, wherein the second criterion refers to: the terminal device satisfies the following conditions within the second evaluation duration:

(S _rxlevRef–S _rxlev)＜S _SearchDeltaP；

Wherein S _rxlevRef represents an RSRP reference measurement value of the terminal device in a serving cell; s _rxlev represents the RSRP measurement of the terminal device in the serving cell, and S _SearchDeltaP represents the second threshold value.
The method according to any of claims 2 to 5, wherein the determining whether the first terminal device meets radio resource management, RRM, measurement relaxation criteria based on the location information of the first terminal device comprises:

Determining, based on the location information of the first terminal device, that the first terminal device meets the RRM measurement relaxation criterion if the first terminal device meets the first criterion or the second criterion; or (b)

Based on the location information of the first terminal device, determining that the first terminal device meets the RRM measurement relaxation criterion in case the first terminal device meets the first criterion and the second criterion.
The method of claim 6, wherein the determining that the first terminal device meets the RRM measurement relaxation criterion based on the location information of the first terminal device if the first terminal device meets the first criterion and the second criterion comprises:

And determining that the first terminal equipment meets the RRM measurement relaxation criterion under the condition that the first terminal equipment meets the first criterion in a first time period and the first terminal equipment meets the second criterion in a second time period based on the position information of the first terminal equipment.
The method of claim 7, wherein the first time period and the second time period are the same if the first evaluation duration is equal to the second evaluation duration.
The method according to any one of claims 2 to 8, further comprising:

Receiving first information;

Wherein the first information includes at least one of: the related information of the first criterion and the related information of the second criterion; the related information of the first criterion includes the first threshold value; the related information of the second criterion includes the second evaluation duration and the second threshold value.
The method of claim 9, wherein the information related to the first criterion includes the first evaluation duration.
The method of claim 9, wherein the first evaluation period is determined based on the second evaluation period if the first criterion related information does not include the first evaluation period.
The method according to any of claims 9 to 11, wherein the first terminal device meeting the RRM measurement relaxation criterion comprises the first terminal device meeting the first criterion if the first information comprises information related to the first criterion and does not comprise information related to the second criterion.
The method according to any one of claims 9 to 11, wherein if the first information comprises information related to the first criterion and information related to the second criterion; the first information further includes first indication information; wherein the first indication information is used for indicating that the terminal equipment meets the RRM measurement relaxation criterion, or the terminal equipment meets the first criterion and the second criterion.
The method according to any of claims 9 to 13, wherein the first information is carried in a broadcast message.
The method according to any of claims 2 to 14, wherein the first criterion and the second criterion are both low mobility criteria or the first criterion and the second criterion are both stationary criteria.
The method according to any of claims 1 to 15, wherein the RRM measurement relaxation criterion comprises a third criterion and/or a fourth criterion, the third criterion being: the distance between the position of the terminal equipment and the reference position of the service cell is smaller than or equal to a third threshold value, and the fourth criterion refers to: the measured value of the reference signal received power RSRP of the terminal equipment in the service cell is greater than a fourth threshold value, and the measured value of the reference signal received quality RSRQ of the terminal equipment in the service cell is greater than the fifth threshold value when the network equipment is configured with the fifth threshold value.
The method of claim 16, wherein the third criterion refers to: the terminal device satisfies the following conditions:

D ₁≤D _threshold；

Wherein D ₁ represents a distance from the location of the terminal device to the reference location; d _threshold represents the third threshold value.
The method according to claim 16 or 17, wherein the fourth criterion refers to: the terminal device satisfies S _P＞S _SearchP; and in case the network device is configured with a fifth threshold, the terminal device satisfies S _Q＞S _SearchQ; wherein S _P represents an RSRP measurement value of the terminal device in a serving cell; s _SearchP represents the fourth threshold value, S _Q represents an RSRQ measurement of the terminal device in a serving cell; s _SearchQ represents the fifth threshold value.
The method according to any of claims 16 to 18, wherein the determining whether the first terminal device meets radio resource management, RRM, measurement relaxation criteria based on the location information of the first terminal device comprises:

determining, based on the location information of the first terminal device, that the first terminal device meets the RRM measurement relaxation criterion if the first terminal device meets the third criterion or the fourth criterion; or (b)

Based on the location information of the first terminal device, determining that the first terminal device meets the RRM measurement relaxation criterion in case the first terminal device meets the third criterion and the fourth criterion.
The method according to any one of claims 16 to 19, further comprising:

Receiving second information;

Wherein the second information includes at least one of: the related information of the third criterion and the related information of the fourth criterion; the related information of the third criterion includes the third threshold value; the related information of the fourth criterion comprises the fourth threshold value and/or the fifth threshold value.
The method of claim 20, wherein the first terminal device meeting the RRM measurement relaxation criteria comprises the first terminal device meeting the third criteria if the second information comprises information related to the third criteria.
The method of claim 20, wherein if the second information includes information related to the third criterion and information related to the fourth criterion, the second information further includes second indication information; wherein the second indication information is used for indicating that the terminal equipment meets the RRM measurement relaxation criterion, including that the terminal equipment meets the third criterion or the fourth criterion, or the second indication information is used for indicating that the terminal equipment meets the RRM measurement relaxation criterion, including that the terminal equipment meets the third criterion and the fourth criterion.
The method according to any of claims 20 to 22, wherein the second information is carried in a broadcast message.
The method according to any one of claims 16 to 23, wherein the third criterion and the fourth criterion are both non-cell edge criteria.
The method according to any of claims 1 to 24, wherein the determining whether the first terminal device meets radio resource management, RRM, measurement relaxation criteria based on the location information of the first terminal device comprises:

And under the condition that the first terminal equipment acquires available position information at the current position, determining whether the first terminal equipment meets the RRM measurement relaxation criterion or not based on the available position information.
A method of wireless communication, the method being adapted for use with a network device, the method comprising:

transmitting information about radio resource management RRM measurement relaxation criteria;

Wherein the information related to the RRM measurement relaxation criterion is used by a first terminal device to determine whether the first terminal device is full of the RRM measurement relaxation criterion based on the location information of the first terminal device.
The method of claim 26, wherein the RRM measurement relaxation criteria comprises a first criterion and/or a second criterion, the first criterion being: and in the first evaluation duration, the change amount of the distance between the position of the terminal equipment and the reference position of the serving cell is smaller than or equal to a first threshold value, and the second criterion refers to that: and in the second evaluation period, the Reference Signal Received Power (RSRP) variation of the terminal equipment in the service cell is smaller than a second threshold value.
The method of claim 27, wherein the first criterion is: the terminal device satisfies the following conditions within the first evaluation duration:

(D ₁-D _ref)≤D _{thresholdDelta}；

Wherein D ₁ represents a distance from the location of the terminal device to the reference location; d _ref is a distance reference value, and D _{thresholdDelta} represents the first threshold value.
The method of claim 28, wherein the value of D _ref is set to the value of D ₁ when at least one of the following is satisfied:

when the terminal equipment selects or reselects to a new cell;

(D _ref-D ₁)>0；

The duration that the terminal device meets the first criterion is less than a first evaluation duration.
The method according to any one of claims 27 to 28, wherein the second criterion refers to: the terminal device satisfies the following conditions within the second evaluation duration:

(S _rxlevRef–S _rxlev)＜S _SearchDeltaP；

Wherein S _rxlevRef represents an RSRP reference measurement value of the terminal device in a serving cell; s _rxlev represents the RSRP measurement of the terminal device in the serving cell, and S _SearchDeltaP represents the second threshold value.
The method according to any of claims 27 to 30, wherein the first terminal device fulfils the RRM measurement relaxation criterion, comprising at least one of:

the first terminal device meets the first criterion or the second criterion; or (b)

The first terminal device satisfies the first criterion and the second criterion.
The method of claim 31, wherein the first terminal device meeting the first criterion and the second criterion comprises: the first terminal device satisfies the first criterion in a first time period, and the first terminal device satisfies the second criterion in a second time period.
The method of claim 32, wherein the first time period and the second time period are the same if the first evaluation duration is equal to the second evaluation duration.
The method according to any one of claims 27 to 33, further comprising:

Transmitting first information;

Wherein the first information includes at least one of: the related information of the first criterion and the related information of the second criterion; the related information of the first criterion includes the first threshold value; the related information of the second criterion includes the second evaluation duration and the second threshold value.
The method of claim 34, wherein the information related to the first criterion includes the first evaluation duration.
The method of claim 34, wherein the first evaluation period is determined based on the second evaluation period if the first criterion related information does not include the first evaluation period.
The method of any of claims 34-36, wherein the first terminal device meeting the RRM measurement relaxation criterion comprises the first terminal device meeting the first criterion if the first information comprises information related to the first criterion and does not comprise information related to the second criterion.
The method according to any one of claims 34 to 36, wherein if the first information comprises information related to the first criterion and information related to the second criterion, the first information further comprises first indication information; wherein the first indication information is used for indicating that the terminal equipment meets the RRM measurement relaxation criterion, including that the terminal equipment meets the first criterion or the second criterion, or the first indication information is used for indicating that the terminal equipment meets the RRM measurement relaxation criterion, including that the terminal equipment meets the first criterion and the second criterion.
A method according to any one of claims 34 to 37, wherein the first information is carried in a broadcast message.
The method according to any one of claims 27 to 38, wherein the first criterion and the second criterion are both low mobility criteria or the first criterion and the second criterion are both stationary criteria.
The method according to any of claims 26 to 39, wherein the RRM measurement relaxation criterion comprises a third criterion and/or a fourth criterion, the third criterion being: the distance between the position of the terminal equipment and the reference position of the service cell is smaller than or equal to a third threshold value, and the fourth criterion refers to: the measured value of the reference signal received power RSRP of the terminal equipment in the service cell is greater than a fourth threshold value, and the measured value of the reference signal received quality RSRQ of the terminal equipment in the service cell is greater than the fifth threshold value when the network equipment is configured with the fifth threshold value.
The method of claim 41, wherein the third criterion is: the terminal device satisfies the following conditions:

D ₁≤D _threshold；

Wherein D ₁ represents a distance from the location of the terminal device to the reference location; d _threshold represents the third threshold value.
The method according to claim 41 or 42, wherein the fourth criterion refers to: the terminal device satisfies S _P＞S _SearchP; and in case the network device is configured with a fifth threshold, the terminal device satisfies S _Q＞S _SearchQ; wherein S _P represents an RSRP measurement value of the terminal device in a serving cell; s _SearchP represents the fourth threshold value, S _Q represents an RSRQ measurement of the terminal device in a serving cell; s _SearchQ represents the fifth threshold value.
The method of any one of claims 41-43, wherein the first terminal device meeting the RRM measurement relaxation criterion comprises at least one of:

the first terminal device meets the third criterion or the fourth criterion; or (b)

The first terminal device satisfies the third criterion and the fourth criterion.
The method of any one of claims 41 to 44, further comprising:

Transmitting second information;

Wherein the second information includes at least one of: the related information of the third criterion and the related information of the fourth criterion; the related information of the third criterion includes the third threshold value; the related information of the fourth criterion comprises the fourth threshold value and/or the fifth threshold value.
The method of claim 45, wherein the first terminal device meeting the RRM measurement relaxation criteria comprises the first terminal device meeting the third criteria if the second information comprises information relating to the third criteria.
The method of claim 45, wherein the second information includes information related to the third criterion and information related to the fourth criterion, and the second information further includes second indication information; wherein the second indication information is used for indicating that the terminal equipment meets the RRM measurement relaxation criterion, including that the terminal equipment meets the third criterion or the fourth criterion, or the second indication information is used for indicating that the terminal equipment meets the RRM measurement relaxation criterion, including that the terminal equipment meets the third criterion and the fourth criterion.
The method of any one of claims 45 to 47, wherein the second information is carried in a broadcast message.
The method of any one of claims 41 to 48, wherein the third criterion and the fourth criterion are both non-cell edge criteria.
A first terminal device, comprising:

a determining unit, configured to determine, based on location information of the first terminal device, whether the first terminal device meets a radio resource management RRM measurement relaxation criterion;

And the measurement unit is used for starting the relaxation RRM measurement under the condition that the relaxation criterion of the RRM measurement is met.
A network device, comprising:

a transmitting unit for transmitting information about a radio resource management RRM measurement relaxation criterion;

Wherein the information related to the RRM measurement relaxation criterion is used by a first terminal device to determine whether the first terminal device is full of the RRM measurement relaxation criterion based on the location information of the first terminal device.
A terminal device, comprising:

a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory to perform the method of any of claims 1 to 25.
A network device, comprising:

A processor and a memory for storing a computer program, the processor for invoking and running the computer program stored in the memory to perform the method of any of claims 26 to 49.
A chip, comprising:

A processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 25 or the method of any one of claims 26 to 49.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 25 or the method of any one of claims 26 to 49.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 25 or the method of any one of claims 26 to 49.
A computer program, characterized in that the computer program causes a computer to perform the method of any one of claims 1 to 25 or the method of any one of claims 26 to 49.