Communication method and communication apparatus

Abstract

The application discloses a communication method and a communication device, relates to the field of communication, and is used for reducing network congestion caused by the centralized sending of measurement reports by a large number of terminal devices. The method is applied to a terminal device, and the method comprises the following steps: receiving first configuration information from a network device; the first configuration information is used for indicating respective areas covered by the network device and corresponding area identifiers; sending, to the network device, a wireless link quality and an area identifier corresponding to an area where the terminal device is located; receiving second configuration information and third configuration information from the network device, the second configuration information is used for indicating an SMTC time offset corresponding to the area where the terminal device is located, the third configuration information is used for indicating when the terminal device sends a measurement report after completing measurement on an SSB, and the third configuration information is generated according to the wireless link quality and a service quality parameter; measuring the SSB sent by the network device according to the second configuration information, and sending the measurement report according to the third configuration information.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication, and in particular to a communication method and a communication device. BACKGROUND

[0002] In a non-terrestrial network (NTN), a large number of terminal devices (for example, satellite terminal devices) initiate cell switching in a short time, or a large number of terminal devices initiate cell switching from a terrestrial network (TN) to an NTN in a short time, trigger neighbor cell measurement and upload measurement reports, cause serious congestion of uplink channels, and lead to excessive network load, thereby possibly causing large-scale handover failure and network performance degradation. SUMMARY

[0003] Embodiments of the present application provide a communication method and a communication device for reducing network congestion caused by a large number of terminal devices collectively sending measurement reports.

[0004] To achieve the above-mentioned purpose, embodiments of the present application adopt the following technical solutions:

[0005] In a first aspect, a communication method is provided, applied to a terminal device, and the method includes: receiving, by the terminal device, first configuration information from a network device, the first configuration information being used to indicate respective areas covered by the network device and corresponding area identifiers; sending, by the terminal device, a wireless link quality and an area identifier corresponding to an area in which the terminal device is located to the network device; receiving, by the terminal device, second configuration information and third configuration information from the network device, the second configuration information being used to indicate a synchronization signal and PBCH block (SSB)-based measurement timing configuration (SMTC) time offset corresponding to the area in which the terminal device is located, and the third configuration information being used to indicate when the terminal device sends a measurement report after completing measurement of an SSB, the third configuration information being generated according to the wireless link quality and a quality of service parameter; measuring, by the terminal device, an SSB sent by the network device according to the second configuration information; and sending, by the terminal device, a measurement report according to the third configuration information.

[0006] The communication method provided by the embodiments of the present application divides the coverage range into multiple areas, and the area where the terminal device is located corresponds to an independent SMTC time offset, so as to realize the group peak-shaving measurement of SSB of the terminal devices in different areas. In addition, the network device generates third configuration information according to the radio link quality and the service quality parameter, and indicates the terminal device to send the measurement report after completing the measurement of SSB, that is, differentiates the terminal devices to send the measurement report according to the radio link quality and the service quality parameter, avoids the centralized measurement of SSB and the centralized reporting of the measurement report of the terminal devices, and reduces the network congestion caused by the centralized sending of the measurement report of a large number of terminal devices.

[0007] In a possible implementation, the method further includes: the terminal device receives fourth configuration information from the network device, and the fourth configuration information is used to indicate the SMTC time offset corresponding to the terminal device. The fourth configuration information introduces the in-group randomization measurement of SSB on the basis of the second configuration information realizing the group peak-shaving measurement of SSB, so that a large number of medium and low priority terminal devices in the same area that originally report in a centralized manner are reported at different time points, and more fine peak-shaving measurement is realized.

[0008] In a possible implementation, the fourth configuration information includes a random number seed and a hash function, the hash function is combined with the random number seed and the identifier of the terminal device itself, and is used to calculate the SMTC time offset corresponding to the terminal device. At this time, the SMTC time offset of the terminal device for measuring SSB is: UE_Final_Offset=Group_Base_Offset+H(seed,UEID) mod Max_Offset. Wherein, mod represents the remainder, and Max_Offset represents the maximum random time offset. That is, the terminal device measures SSB in the time window after the SMTC time offset UE_Final_Offset is added to the time window indicated by the SMTC.

[0009] In a possible implementation, the third configuration information is a first value, indicating that the terminal device sends the measurement report at the nearest reporting opportunity after completing the measurement on the SSB. This enables the measurement report of the high-priority service to be uploaded in a timely and reliable manner, and the network device can quickly make a handover decision to ensure that the high-priority service is not interrupted. Alternatively, the terminal device completes the cell handover as soon as possible before a radio link failure (RLF) occurs. The third configuration information is a second value, indicating that the terminal device delays sending the measurement report for a preset time after completing the measurement on the SSB. In the delay time, the uplink channel resource is released to serve the high-priority service that needs to be uploaded in a timely manner, thereby ensuring the user experience of the key service. The third configuration information is a third value, indicating that the terminal device sends the measurement report when a condition is met after completing the measurement on the SSB. For the terminal device performing the low-priority service, the terminal device does not report the measurement report after completing the measurement on the SSB each time, but reports the measurement report after meeting a more stringent condition, thereby filtering out a large number of unnecessary and repetitive measurement reports (for example, the measurement report of the terminal device with a small moving distance), reducing the signaling overhead, saving the uplink resource, and improving the network efficiency. The number of measurement reports that need to be processed by the network side is greatly reduced, thereby reducing the processing load and enabling more computing and scheduling resources to be used for processing the real important handover decision.

[0010] In a possible implementation, the method further includes that the terminal device periodically, or after moving a preset distance, or after moving to another area, sends an updated area identifier corresponding to the area where the terminal device is located to the network device. The terminal device receives updated second configuration information from the network device. This ensures that the second configuration information can dynamically match the area where the terminal device is located.

[0011] In a possible implementation, the method further includes that when the quality of service parameter changes, the terminal device receives updated third configuration information from the network device. This ensures that the reporting strategy of the measurement report can dynamically match the service demand.

[0012] In a possible implementation, the first configuration information includes the latitude and longitude coordinates of the diagonal vertices of each area covered by the network device, and the corresponding area identifier. The embodiments of the present application do not limit the representation of each area. For example, the area can also be circular, and the geographical boundary of the area can be represented by the latitude and longitude coordinates of the center and the radius. The area can also be polygonal, and the geographical boundary of the area can be represented by the latitude and longitude coordinates of all the vertices of the polygon.

[0013] In a second aspect, a communication method is provided, applied to a network device, the method comprising: sending, by the network device, first configuration information to a terminal device, the first configuration information being used to indicate respective areas covered by the network device and corresponding area identifiers; receiving, by the network device, a wireless link quality and an area identifier corresponding to an area where the terminal device is located from the terminal device; sending, by the network device, second configuration information and third configuration information to the terminal device, the second configuration information being used to indicate an SMTC time offset corresponding to the area where the terminal device is located, the third configuration information being used to indicate when the terminal device sends a measurement report after completing measurement on a SSB, the third configuration information being generated according to the wireless link quality and a quality of service parameter; and receiving, by the network device, the measurement report from the terminal device.

[0014] In a possible implementation, the method further comprises: sending, by the network device, fourth configuration information to the terminal device, the fourth configuration information being used to indicate an SMTC time offset corresponding to the terminal device.

[0015] In a possible implementation, the fourth configuration information comprises a random number seed and a hash function, the hash function being combined with the random number seed and an identifier of the terminal device itself to calculate the SMTC time offset corresponding to the terminal device.

[0016] In a possible implementation, the third configuration information is a first value, indicating that the terminal device sends the measurement report at a nearest reporting occasion after completing measurement on the SSB; the third configuration information is a second value, indicating that the terminal device delays a preset time to send the measurement report after completing measurement on the SSB; and the third configuration information is a third value, indicating that the terminal device sends the measurement report when a condition is met after completing measurement on the SSB.

[0017] In a possible implementation, the method further comprises: receiving, by the network device, an updated area identifier corresponding to the area where the terminal device is located from the terminal device; and sending, by the network device, updated second configuration information to the terminal device.

[0018] In a possible implementation, the method further comprises: when the quality of service parameter changes, sending, by the network device, updated third configuration information to the terminal device.

[0019] In a possible implementation, the first configuration information comprises latitude and longitude coordinates of diagonal vertices of respective areas covered by the network device, and corresponding area identifiers.

[0020] In a third aspect, a communication apparatus is provided, which comprises a processing module and a communication module. The communication module is configured to receive, from a network device, first configuration information, the first configuration information being used to indicate respective areas covered by the network device and corresponding area identifiers. The communication module is further configured to send, to the network device, a radio link quality and an area identifier corresponding to an area where the terminal device is located. The communication module is further configured to receive, from the network device, second configuration information and third configuration information, the second configuration information being used to indicate an SMTC time offset corresponding to the area where the terminal device is located, and the third configuration information being used to indicate when the terminal device sends a measurement report after completing measurement on a SSB, the third configuration information being generated according to the radio link quality and a quality of service parameter. The communication module is further configured to measure, according to the second configuration information, the SSB sent by the network device, and send the measurement report according to the third configuration information.

[0021] In a possible implementation, the communication module is further configured to receive, from the network device, fourth configuration information, the fourth configuration information being used to indicate an SMTC time offset corresponding to the terminal device.

[0022] In a possible implementation, the communication module is further configured to periodically, or after moving a preset distance, or after moving to another area, send, to the network device, an updated area identifier corresponding to the area where the terminal device is located. The communication module is further configured to receive, from the network device, updated second configuration information.

[0023] In a possible implementation, the communication module is further configured to receive, from the network device, updated third configuration information when the quality of service parameter changes.

[0024] In a fourth aspect, a communication apparatus is provided, which comprises a processing module and a communication module. The communication module is configured to send, to a terminal device, first configuration information, the first configuration information being used to indicate respective areas covered by the network device and corresponding area identifiers. The communication module is further configured to receive, from the terminal device, a radio link quality and an area identifier corresponding to an area where the terminal device is located. The communication module is further configured to send, to the terminal device, second configuration information and third configuration information, the second configuration information being used to indicate an SMTC time offset corresponding to the area where the terminal device is located, and the third configuration information being used to indicate when the terminal device sends a measurement report after completing measurement on a SSB, the third configuration information being generated according to the radio link quality and a quality of service parameter. The communication module is further configured to receive, from the terminal device, the measurement report.

[0025] In a possible implementation, the communication module is further configured to send, to the terminal device, fourth configuration information, the fourth configuration information being used to indicate an SMTC time offset corresponding to the terminal device.

[0026] In a possible implementation, the communication module is further configured to receive an updated area identifier corresponding to the area where the terminal device is located from the terminal device. The communication module is further configured to send the updated second configuration information to the terminal device.

[0027] In a possible implementation, the communication module is further configured to send the updated third configuration information to the terminal device when the quality of service parameter changes.

[0028] In a fifth aspect, a communication apparatus is provided, which includes a processor. The processor is coupled to a memory and is configured to execute instructions or data in the memory to implement the method in any possible implementation of the first aspect. Optionally, the communication apparatus further includes the memory. Optionally, the communication apparatus further includes a communication interface, and the processor is coupled to the communication interface.

[0029] In an implementation, the communication interface can be a transceiver, or an input / output interface.

[0030] In another implementation, the communication apparatus is a chip configured in a network device. When the communication apparatus is a chip configured in a network device, the communication interface can be an input / output interface.

[0031] In a sixth aspect, a communication apparatus is provided, which includes a processor. The processor is coupled to a memory and is configured to execute instructions or data in the memory to implement the method in any possible implementation of the second aspect. Optionally, the communication apparatus further includes the memory. Optionally, the communication apparatus further includes a communication interface, and the processor is coupled to the communication interface.

[0032] In an implementation, the communication interface can be a transceiver, or an input / output interface.

[0033] In another implementation, the communication apparatus is a chip configured in a terminal device. When the communication apparatus is a chip configured in a terminal device, the communication interface can be an input / output interface.

[0034] In a seventh aspect, a processor is provided, which includes an input circuit, an output circuit and a processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method in any possible implementation of the first aspect or the second aspect.

[0035] In the implementation process, the processor can be one or more chips, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, a gate circuit, a flip-flop, various logic circuits, etc. The input signal received by the input circuit can be received and input by, for example but not limited to, a receiver, the output signal output by the output circuit can be output to and transmitted by, for example but not limited to, a transmitter, and the input circuit and the output circuit can be the same circuit which is used as the input circuit and the output circuit at different times. The embodiments of the present application do not limit the specific implementation of the processor and various circuits.

[0036] In an eighth aspect, a communication apparatus is provided, which includes a processor and a memory. The processor is configured to read instructions stored in the memory, and is configured to receive signals via a receiver and transmit signals via a transmitter to perform the method in any possible implementation of the first aspect or the second aspect.

[0037] Optionally, the processor is one or more, and the memory is one or more.

[0038] In a ninth aspect, a computer program product is provided, which includes a computer program (which can also be referred to as code or instructions), and when the computer program is run, the computer program causes a computer to perform the method in any possible implementation of the first aspect or the second aspect.

[0039] In a tenth aspect, a computer-readable storage medium is provided, which stores a computer program (which can also be referred to as code or instructions), and when the computer program is run on a computer, the computer program causes the computer to perform the method in any possible implementation of the first aspect or the second aspect.

[0040] In an eleventh aspect, the embodiments of the present application provide a chip system, which includes one or more processors configured to call and run instructions stored in a memory, so that the method in any possible implementation of the first aspect or the second aspect is performed. The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0041] In the chip system, the input circuit or the interface for transmitting information or data, and the output circuit or the interface for receiving information or data can be included.

[0042] In a twelfth aspect, a communication system is provided, which includes the communication apparatus described above, such as a terminal device or a network device. Optionally, the communication system can further include other devices in communication with the terminal device or the network device.

[0043] The technical effects of the second aspect to the twelfth aspect refer to the technical effects of the first aspect and any of the embodiments thereof, which are not repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 A schematic diagram of an architecture of a communication system is provided for the embodiments of the present application.

[0045] Figure 2 A schematic diagram of a structure of a terminal device and a network device is provided for the embodiments of the present application.

[0046] Figure 3 A schematic diagram of cell switching is provided for the embodiments of the present application.

[0047] Figure 4 A schematic diagram of a flow of a communication method is provided for the embodiments of the present application.

[0048] Figure 5 A schematic diagram of area division is provided for the embodiments of the present application.

[0049] Figure 6 A schematic diagram of a structure of a communication apparatus is provided for the embodiments of the present application.

[0050] Figure 7 A schematic diagram of another structure of a communication apparatus is provided for the embodiments of the present application. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be described below with reference to the drawings.

[0052] First, some concepts involved in the present application are described.

[0053] The terms “first”, “second”, and the like involved in the embodiments of the present application are only used for the purpose of distinguishing the same type of features, and should not be interpreted as indicating relative importance, quantity, order, and the like.

[0054] The terms “exemplary” or “for example” and the like involved in the embodiments of the present application are used to mean by way of example, illustration, or description. Any embodiment or design solution described as “exemplary” or “for example” in the present application should not be interpreted as being more preferred or having more advantages than other embodiments or design solutions. Rather, the terms “exemplary” or “for example” are used with the intention of presenting the relevant concept in a particular manner.

[0055] The technical solutions provided in the present application can be applied to various communication systems, for example: a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD), a sidelink communication system, a universal mobile telecommunication system (UMTS), a worldwide interoperability for microwave access (WiMAX) communication system, a non-terrestrial network (NTN) communication system, a 5th generation (5G) mobile communication system, a new radio access technology (NR), a future communication system, a 5G Advanced communication system. Among them, the 5G mobile communication system can include non-standalone (NSA) and / or standalone (SA). The technical solutions provided in the present application can also be applied to future communication systems. The present application does not limit this. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, and also in other systems and radio technologies.

[0056] Figure 1 An architecture schematic diagram of a communication system provided in the embodiments of the present application is provided. The communication system 100 can be a communication system combining NTN and ground network. The communication system 100 can include a network device 110, a terminal device 120. The network device 110 and the terminal device 120 can communicate through a wireless link.

[0057] Figure 1 An exemplary network device 110 and terminal device 120 are shown. Optionally, the communication system 100 can also include multiple network devices 110 and multiple terminal devices 120.

[0058] The network device in the present application can be a satellite for satellite communication, such as Tianhong satellite communication, Xingwang satellite communication, etc., and can also be an aircraft (such as a drone, a helicopter, an airplane, a hot air balloon), etc. The network device can also be an access network device, a core network device, and the like. The network device can include an access network device, a mobility management entity (MME), a home subscriber server (HSS), an access management function (AMF) network element, a session management function (SMF) network element.

[0059] The MME is used for signaling processing, such as attachment, detachment, tracking area update. Also used for user authentication, session management, mobility management (such as handover control), etc. The HSS is used to store user core data, such as international mobile subscriber identity (IMSI), authentication key. Also used to manage user subscription information, such as quality of service (QoS) policy, etc.

[0060] The AMF network element is used for user access and mobility management, including processing terminal device access requests, mobility management, and wireless resource allocation functions, etc.

[0061] The SMF network element is used for session management functions, such as tunnel maintenance, IP address allocation and management, UP function selection, control in quality of service (QoS), charging data collection, roaming, etc.

[0062] The access network device is also sometimes referred to as an access node. The access network device has a wireless transceiving function for communicating with the terminal. The access network device includes, but is not limited to, a base station in the above-mentioned communication system, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a 5G mobile communication system, an access network device or a module of an access network device in an open RAN (ORAN) system, a satellite in an NTN communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc. The access network device can also be a module or unit capable of realizing part of the function of the base station. The access network device can be a macro base station, a micro base station or an indoor station, a relay node or a donor node, or a wireless controller in a cloud radio access network (CRAN) scenario. Optionally, the access network device can also be a server, a wearable device, or a vehicle-mounted device, etc. For example, the access network device in vehicle to everything (V2X) technology can be a road side unit (RSU). The plurality of access network devices in the communication system can be the same type of base station, or different types of base stations. The base station can communicate with the terminal, or communicate with the terminal through a relay station. The terminal can communicate with a plurality of base stations in different access technologies. The embodiments of the present application do not limit the specific technology and specific device form of the access network device.

[0063] In the present application, the device for realizing the function of the network device can be a network device, or a device capable of supporting the network device to realize the function, such as a processor, a circuit, a chip, or a chip system, etc., which can be installed in the network device or connected with the network device for use. In the technical solutions provided in the present application, the device for realizing the function of the network device is taken as an example to describe the technical solutions provided in the present application.

[0064] The terminal device in the present application can be a terminal device capable of wireless communication. The terminal device can refer to a device that provides voice and / or data connectivity to a user, or a handheld device having a wireless connection function, or other processing devices connected to a wireless modem. For example, the terminal device can communicate with one or more core networks or the Internet through a radio access network (RAN). The terminal device can also be referred to as a terminal, user equipment (UE), mobile station, mobile terminal, etc. The terminal device can be widely used in various scenarios, such as satellite communication, device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), internet of things (IoT), ultra-reliable low-latency communication (URLLC), virtual reality, augmented reality, industrial control, automatic driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a flying vehicle (such as a drone, a helicopter, an airplane, a hot air balloon), a ship, a robot, a mechanical arm, or a smart home device, etc. The embodiments of the present application do not limit the form of the terminal device.

[0065] In the present application, the device for realizing the function of the terminal device can be a terminal device, or a device capable of supporting the terminal device to realize the function, such as a processor, a circuit, a chip, a chip system, etc., which can be installed in the terminal device or connected with the terminal device for use. In the technical solutions provided in the present application, the device for realizing the function of the terminal device is taken as an example to describe the technical solutions provided in the present application.

[0066] In actual application, a plurality of network devices can cooperate to assist a terminal device to implement wireless access, and different network devices respectively implement part of functions of a base station. For example, a network device can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in a same network element, for example, a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, for example, a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0067] In different systems, the CU (or CU-CP and CU-UP), the DU, or the RU can also have different names, but a person skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. Any one of the CU (or CU-CP and CU-UP), the DU, and the RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. The CU (or CU-CP and CU-UP), the DU, and the RU can implement different protocol layer functions.

[0068] Figure 2 A structure schematic diagram of a terminal device and a network device provided by an embodiment of the present application is shown in FIG. 2. The terminal device 210 can be the terminal device 120 in FIG. 1, and the network device 220 can be the network device 110 in FIG. 1. Figure 1 Figure 1

[0069] ​​The terminal device 210 includes a first processor 211, a first memory 212, and a first transceiver 213. The first processor 211 can include one or more processing units, for example: the first processor 211 can include a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processing unit (CPU), a network processor (NP), a microcontroller unit (MCU), a programmable logic device (PLD), an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Different processing units can be independent devices or integrated in one or more processors.

[0070] The first memory 212 can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. Among them, the nonvolatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM) used as an external cache. By way of example, and not limitation, many forms of RAM can be used, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DRRAM).

[0071] The first memory 212 can exist independently, and is connected with the first processor 211 through a bus. The first memory 212 can also be integrated with the first processor 211. Among them, the first memory 212 is used to store the application program code for executing the scheme of the present application, and is controlled by the first processor 211 to execute. The first processor 211 is used to execute the computer program instructions stored in the first memory 212, so as to execute various functional applications and data processing of the terminal device 210, such as implementing the method described in the embodiments of the present application.

[0072] The first processor 211 and the first transceiver 213 are connected through a bus. The first transceiver 213 can use any transceiver-like device for communicating with other devices or communication networks, such as an Ethernet, a radio access network (RAN), a wireless local area network (WLAN), etc. The first transceiver 213 includes a transmitter Tx and a receiver Rx.

[0073] The network device 220 comprises a second processor 221, a second memory 222, and a second transceiver 223. The second processor 221 is configured to execute computer program instructions stored in the second memory 222, so as to perform various functional applications and data processing of the network device 220, for example, implement the method described in the embodiments of the present application. The functions of the second processor 221 are described with reference to the description of the first processor 211, the functions of the second memory 222 are described with reference to the description of the first memory 212, and the functions of the second transceiver 223 are described with reference to the description of the first transceiver 213, which will not be described here again.

[0074] To facilitate understanding of the embodiments of the present application, first, the terms involved in the present application are briefly explained. Optionally, the explanation of some terms can also refer to the explanation in the 3rd generation partnership project (3GPP) standard protocol. It should be understood that the technical terms in the present application are only used as examples and are not limited. For example, as technology evolves, technical terms will also change, and in the case of the same technical meaning, other technical terms should also apply to the present application.

[0075] Non-terrestrial network (NTN) refers to a network architecture that uses satellites, high-altitude platforms (such as unmanned aerial vehicles, balloons), etc. to provide communication services, aiming to expand the coverage of traditional ground networks (such as 4G / 5G) and achieve seamless global connectivity.

[0076] Synchronization signal and PBCH block (SSB)-based measurement timing configuration (SMTC) is a periodic measurement time window told by a network device to a terminal device. The terminal device measures the SSB signal of the target cell in this window, and can rest at other times to reduce power consumption.

[0077] Radio link quality (RLQ) can include reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), signal to interference plus noise ratio (SINR), and channel quality indicator (CQI). A smaller RLQ indicates worse communication quality, while a larger RLQ indicates better communication quality.

[0078] CQI is measured by the terminal device and reported to the network device, which then selects the modulation and coding scheme (MCS). RSRP is used to measure the average power of the reference signal received by the terminal device. RSRQ takes into account both RSRP and Received Signal Strength Indication (RSSI). The formula is RSRQ = N × RSRP / RSSI, where N is the number of resource blocks. SINR is the signal power. With interference power Added noise power The ratio of [value] to [value] reflects the clarity of the signal. The formula is: .

[0079] Figure 3 This is a schematic diagram illustrating a cell handover as provided in an embodiment of this application. Figure 3 As shown in Figure A, in NTN, a large number of terminal devices 120 (e.g., satellite terminals) initiate cell handover in a short period of time, or, as... Figure 3 As shown in Figure B, a large number of terminal devices 120 initiate cell handover from TN to NTN in a short period of time, triggering SSB measurement and uploading measurement reports, causing severe uplink channel congestion in NTN, resulting in excessive network load, which may lead to large-scale handover failures and network performance degradation.

[0080] Therefore, the present application provides a communication method. A network device divides a coverage range into multiple areas, and a terminal device is located in an area corresponding to an independent SMTC time offset. The terminal device measures an SSB in a time window indicated by the SMTC plus the SMTC time offset, so as to realize the grouping and peak-shaving measurement of the SSB by the terminal devices in different areas. In addition, the network device indicates the terminal device to send a measurement report when the terminal device completes the measurement of the SSB according to a radio link quality and a service quality parameter, that is, differentiates the terminal device to send the measurement report according to the radio link quality and the service quality parameter. The terminal device avoids the centralized measurement of the SSB and the centralized reporting of the measurement report, and reduces the network congestion caused by the centralized sending of the measurement report by a large number of terminal devices. The communication method can be applied not only to the NTN, but also to the TN.

[0081] The scheme provided by the present application will be described in detail below in combination with the corresponding flowchart. It can be understood that the main devices (for example, terminal devices and network devices) in the illustrative flowchart are taken as examples to illustrate the execution subject of the interaction, but the present application does not limit the execution subject of the interaction. For example, the devices (for example, terminal devices and network devices) in the illustrative flowchart can also be chips, chip systems or processors supporting the implementation of the method by the devices, and can also be logical modules or software capable of realizing all or part of the functions of the devices.

[0082] Here, it is uniformly stated that the messages or signaling interactions involved in the interaction flow of the embodiments of the present application can adopt the messages or signaling in the standards or newly introduced messages or signaling, and the embodiments of the present application do not make specific limitations.

[0083] Figure 4 The flowchart of the communication method provided by the embodiments of the present application is shown in the figure. Figure 4 The terminal device in the figure can be Figure 1 The terminal device 120 in the figure can also refer to a device (for example, a processor, a chip or a chip system) in the terminal device. Figure 4 The network device in the figure can be Figure 1 The network device 110 in the figure can also refer to a device (for example, a processor, a chip or a chip system) in the network device. As shown in the figure, Figure 4 The communication method 400 includes the following steps S401-S404.

[0084] S401, the network device sends first configuration information to the terminal device.

[0085] Correspondingly, the terminal device receives first configuration information from the network device. Illustratively, the first configuration information can be carried in a system information block (SIB19) of a physical downlink shared channel (PDSCH). The network device periodically broadcasts the SIB19 through a wireless air interface, so that all terminal devices within the coverage can receive the first configuration information. It should be noted that the information between the terminal device and the network device can be directly transmitted, or can be forwarded through other devices.

[0086] The first configuration information is used to indicate the respective areas covered by the network device and the corresponding area identifiers. Figure 5 A schematic diagram of area division is provided for the embodiments of the present application. The network device can divide the coverage range into multiple (for example, 16) areas according to the beam coverage center and the beam coverage radius.

[0087] In a possible implementation, each area can be rectangular, and the geographical boundary of each area can be represented by a pair of latitude and longitude coordinates of the diagonal vertices A (latitude1, longitude1) and B (latitude2, longitude2). The network device assigns a unique area identifier ID to each area, and the configuration information of each area can include the latitude and longitude coordinates of the diagonal vertices of each area, and the corresponding area identifier. Illustratively, the configuration information of each area can be represented as (ID, latitude1, longitude1, latitude2, longitude2). The first configuration information can include the configuration information of each area covered by the network device, for example Figure 5 The coverage range of the network device includes 16 areas, and the first configuration information includes the configuration information of the 16 areas.

[0088] It should be noted that the embodiments of the present application do not limit the representation of each area. For example, the area can also be circular, and the geographical boundary of the area can be represented by the latitude and longitude coordinates of the center and the radius. The area can also be a polygon, and the geographical boundary of the area can be represented by the latitude and longitude coordinates of all vertices of the polygon.

[0089] S402, the terminal device sends the RLQ and the area identifier corresponding to the area where the terminal device is located to the network device.

[0090] Correspondingly, the network device receives the RLQ and the area identifier corresponding to the area where the terminal device is located from the terminal device. Illustratively, the RLQ and the area identifier corresponding to the area where the terminal device is located can be carried in user equipment assistance information (UEAssistanceInformation). The RLQ can be represented by an RLQ information element, and the area identifier corresponding to the area where the terminal device is located can be represented by a measGroupID information element.

[0091] The terminal device obtains the RLQ by measuring a channel state information reference signal (CSI-RS), a synchronization signal block (SSB), or the like.

[0092] After establishing a radio resource control (RRC) connection with the network device, the terminal device obtains the location (for example, the accurate latitude and longitude) of the terminal device by a global navigation satellite system (GNSS), queries each area in the first configuration information according to the location of the terminal device, and determines the area where the terminal device is located and the corresponding area identifier. For example, assuming that the location of the terminal device is in area 1, the terminal device can obtain the area identifier of area 1.

[0093] S403, the network device sends the second configuration information and the third configuration information to the terminal device.

[0094] Correspondingly, the terminal device receives the second configuration information and the third configuration information from the network device. Illustratively, the second configuration information and the third configuration information can be carried in the measurement configuration (MeasConfig) of the RRC reconfiguration (RRCReconfiguration) message.

[0095] The second configuration information is used to indicate the SMTC time offset Group_Base_Offset corresponding to the area where the terminal device is located. The network device can configure an independent SMTC time offset for each area, and the network device determines the area where the terminal device is located according to the area identifier corresponding to the area where the terminal device is located sent by the terminal device, and determines the corresponding SMTC time offset.

[0096] At this time, the terminal device measures the SSB with the SMTC time offset UE_Final_Offset=Group_Base_offset. Wherein, Max_Offset represents the maximum random time offset. That is, the terminal device measures the SSB in the time window indicated by the SMTC plus the SMTC time offset UE_Final_Offset, so as to realize the peak-shaving measurement of the SSB by the terminal devices in different areas.

[0097] It should be noted that the second configuration information can be a specific time offset value, or an index corresponding to the time offset value. The time offset value corresponding to each index can be specified by a protocol or configured by the network device, that is, the network device sends a plurality of time offset values and the indexes corresponding to the time offset values to the terminal device.

[0098] In addition, the terminal device can periodically, or after moving a preset distance, or after moving to another area, send the updated area identifier corresponding to the area where the terminal device is located to the network device. The network device re-sends the updated second configuration information to the terminal device after determining that the area where the terminal device is located changes. Ensure that the second configuration information can dynamically match the area where the terminal device is located.

[0099] Optionally, the network device sends fourth configuration information to the terminal device. Correspondingly, the terminal device receives the fourth configuration information from the network device. Exemplarily, the fourth configuration information can be carried in the measurement configuration (MeasConfig) of the RRC reconfiguration message together with the second configuration information and the third configuration information. The fourth configuration information is used to indicate the SMTC time offset corresponding to the terminal device. Exemplarily, the fourth configuration information can include a random number seed seed and a hash function H. The terminal device calculates a random SMTC time offset corresponding to the terminal device by using the hash function H according to the random number seed seed and the identifier UE ID (for example, cell radio network temporary identifier (C-RNTI)) of the terminal device itself.

[0100] At this time, the terminal device measures the SSB with an SMTC time offset of UE_Final_Offset = Group_Base_offset + H(seed, UE ID) mod Max_Offset. The mod represents the remainder, and Max_Offset represents the maximum random time offset. That is, the terminal device measures the SSB in a time window indicated by the SMTC plus the SMTC time offset UE_Final_Offset. The fourth configuration information is based on the second configuration information to implement the grouping peak-shaving measurement of the SSB, and introduces the intra-group randomization measurement of the SSB. A large number of medium and low priority terminal devices in the same area that would have been concentrated in the report are dispersed in different time points for reporting, so as to achieve more fine peak-shaving measurement.

[0101] The network device determines the third configuration information according to the RLQ from the terminal device and the QoS parameter (for example, 5G QoS identifier (5G QoS identifier, 5QI)) from the core network. The third configuration information is used to indicate when the terminal device sends a measurement report after completing the measurement of the SSB, or in other words, to indicate the strategy of the terminal device for sending the measurement report.

[0102] First, when the terminal device establishes a protocol data unit (protocol data unit, PDU) session with the core network, the network device can determine the priority of the service by analyzing the QoS parameter issued by the core network in the PDU session establishment process, and the mapping relationship between the QoS parameter and the priority of the service. For example, the mapping relationship between the QoS parameter and the priority of the service is shown in Table 1. The higher the priority of the service (the smaller the priority identifier), the more sensitive the service is to the data transmission delay, the more stringent the delay budget, and the measurement report needs to be reported as soon as possible to complete the cell switching as soon as possible.

[0103] Table 1

[0104]

[0105] Secondly, the network device determines the third configuration information according to the priority of the service and the RLQ.

[0106] If the priority of the service is high priority (the priority identifier is 1), the third configuration information is the first value, indicating that the terminal device sends the measurement report at the nearest reporting opportunity after completing the measurement of the SSB. This enables the measurement report of the high priority service to be timely and reliably uploaded, and the network device can quickly make a switching decision to ensure that the high priority service is not interrupted.

[0107] If the priority of the service is medium priority (priority identifier is 2) or low priority (priority identifier is 3), and the RLQ is less than the RLQ threshold (rlq-EmergencyThreshold), indicating that the radio link quality is poor, the third configuration information is the first value, indicating the terminal device to send the measurement report at the nearest reporting opportunity after completing the measurement of the SSB. So that the terminal device can complete the cell switching as soon as possible before the radio link failure (RLF) occurs.

[0108] If the priority of the service is medium priority (priority identifier is 2), and the RLQ is greater than the RLQ threshold (rlq-EmergencyThreshold), indicating that the delay sensitivity of the medium priority service is lower than that of the high priority service, and there is no RLF risk, and there is no urgency to immediately perform cell switching, the third configuration information is the second value, indicating the terminal device to send the measurement report after a preset time delay after completing the measurement of the SSB. In this delay time, the uplink channel resource is released to prioritize the high priority services that need to be uploaded immediately, ensuring the user experience of the critical services.

[0109] If the priority of the service is low priority (priority identifier is 3), and the RLQ is greater than the RLQ threshold (rlq-EmergencyThreshold), indicating that the delay sensitivity of the low priority service is not high, and there is no RLF risk, and there is no urgency to immediately perform cell switching, the third configuration information is the third value, indicating the terminal device to send the measurement report when the conditions are met. The conditions that are met can be specified by the protocol or configured by the network device, that is, the network device sends multiple conditions and the indexes corresponding to the conditions to the terminal device, and the network device sends the indexes corresponding to the conditions to the terminal device, indicating the conditions that the terminal device needs to meet to send the measurement report. The conditions that are met include at least one of the following: the neighbor cell signal quality is greater than a first threshold (i.e., the neighbor cell can provide better signal quality), the difference between the neighbor cell signal quality and the serving cell signal quality is greater than a second threshold (i.e., the neighbor cell can provide better signal quality than the serving cell), and the terminal device moves to the boundary of the area indicated by the network device (the terminal device may need to perform cell switching due to moving to the boundary of the area).

[0110] For the terminal device performing low priority services, the terminal device does not report the measurement report after each measurement of the SSB, but reports the measurement report after meeting more stringent conditions, which can filter out a large number of unnecessary and repetitive measurement reports (such as measurement reports of terminal devices with small moving distances), reduce signaling overhead, save uplink resources, and improve network efficiency. The number of measurement reports that need to be processed by the network side is greatly reduced, the processing load is reduced, and more computing and scheduling resources can be used for processing the real important switching decisions.

[0111] It should be noted that when the service performed by the terminal device changes, for example, from Internet browsing to VoIP call, the core network updates the QoS parameter. After the network device senses that the QoS parameter changes, it recalculates the priority of the service, sends the terminal device with the updated third configuration information, and accordingly, the terminal device receives the updated third configuration information from the network device, ensuring that the reporting strategy of the measurement report can dynamically match the service demand.

[0112] S404, the terminal device measures the SSB sent by the network device according to the second configuration information, and sends a measurement report according to the third configuration information.

[0113] Optionally, the terminal device measures the SSB sent by the network device according to the second configuration information and the fourth configuration information.

[0114] This step specifically refers to the description of S403, which will not be repeated here.

[0115] In NTN, one beam covers a very wide range. When the downlink SSB signal arrives, hundreds of thousands of terminal devices in the coverage range will be woken up at the same time, and almost at the same time window, the neighbor measurement is performed, and then the upload of the measurement report is initiated. This will cause the uplink channel to be flooded with a large amount of measurement reports at the same time, causing serious channel congestion, causing large-scale data packet conflicts, packet loss and handover failure. By allowing terminal devices in different areas to measure at different time points, the concentrated measurement reports can be averaged in the time axis from the source, becoming a smooth and continuous reporting flow, thereby completely avoiding the instantaneous congestion of the uplink channel.

[0116] Improve network performance and reliability, and reduce handover failure rate. By avoiding congestion, the measurement report of high-priority service can be uploaded in time and reliably, and the network device can quickly make a handover decision to ensure uninterrupted service. Even for medium and low priority services, the success probability of handover is greatly improved due to the improvement of network environment, thereby improving the connection stability and user experience of the whole network.

[0117] Optimize the performance of the terminal device and reduce the power consumption of the terminal device. If all terminal devices measure in a concentrated manner, the receiving circuit needs to be started to process the SSB signal, which will bring uniform and high peak power consumption. Peak-shaving measurement means that the terminal device does not need to measure at every SSB period. The terminal device can be activated and measured in a specific time window belonging to itself, and can enter a deeper sleep state at other times. This significantly reduces the average power consumption of the terminal device and prolongs the battery life of the terminal device. For Internet of Things devices and other application scenarios that are extremely sensitive to power consumption, the effect is more obvious.

[0118] Enhance network capacity and efficiency, improve spectrum resource utilization. The essence of network congestion is resource competition. When all terminal devices compete for resources at the same time, conflict and scheduling overhead will increase sharply, resulting in a decrease in the actual utilization efficiency of spectrum resources. By staggered measurement, competitive access becomes scheduled access. Network devices can more efficiently predict and allocate uplink resources, reducing conflicts and retransmissions. Under the same spectrum resources, network devices can serve more terminal devices or provide more reliable services for each terminal device, thereby improving overall network capacity and resource utilization efficiency.

[0119] In summary, the communication method provided by the embodiments of the present application divides the coverage range into multiple areas, and the area where the terminal device is located corresponds to an independent SMTC time offset, so as to realize staggered measurement of SSB by grouping terminal devices in different areas. In addition, the network device generates third configuration information according to the radio link quality and the service quality parameter, and indicates when the terminal device sends the measurement report after completing the measurement of SSB, that is, differentiates the scheduling of the terminal device sending the measurement report according to the radio link quality and the service quality parameter, so as to avoid the terminal device from measuring SSB and reporting the measurement report in a centralized manner, and reduce network congestion caused by a large number of terminal devices sending the measurement report in a centralized manner.

[0120] As shown in Figure 6 A communication device provided by an embodiment of the present application. The communication device 600 can include a communication module 610. The communication module 610 can implement a corresponding communication function, which can be an internal communication function of the communication device 600, or a communication function of the communication device 600 and other devices. Optionally, the communication module 610 can also be referred to as a communication interface or a transceiver module. Optionally, the communication device 600 further includes a processing module 620. The processing module 620 can implement a corresponding processing function.

[0121] Optionally, the communication device 600 further includes a storage module 630, which can be used to store instructions and / or data; the processing module 620 can read the instructions and / or data in the storage module 630, so that the communication device 600 implements the foregoing method embodiments.

[0122] In a possible design, the communication device 600 can correspond to the terminal device in the foregoing method embodiments, or be configured in the terminal device (such as a circuit, a chip, or a chip system, etc.). The communication device 600 can be used to execute the steps or processes performed by the terminal device in any of the foregoing method embodiments.

[0123] For example, the communication module 610 is configured to receive first configuration information from the network device, the first configuration information being used to indicate respective areas covered by the network device and corresponding area identifiers. The communication module 610 is further configured to send, to the network device, a wireless link quality and an area identifier corresponding to an area where the terminal device is located. The communication module 610 is further configured to receive second configuration information and third configuration information from the network device, the second configuration information being used to indicate an SMTC time offset corresponding to the area where the terminal device is located, and the third configuration information being used to indicate when the terminal device sends a measurement report after completing measurement on an SSB, the third configuration information being generated according to the wireless link quality and a quality of service parameter. The communication module 610 is further configured to measure, according to the second configuration information, the SSB sent by the network device, and send the measurement report according to the third configuration information.

[0124] In a possible implementation, the communication module 610 is further configured to receive fourth configuration information from the network device, the fourth configuration information being used to indicate an SMTC time offset corresponding to the terminal device.

[0125] In a possible implementation, the communication module 610 is further configured to periodically, or after moving a preset distance, or after moving to another area, send, to the network device, an updated area identifier corresponding to an area where the terminal device is located. The communication module 610 is further configured to receive updated second configuration information from the network device.

[0126] In a possible implementation, the communication module 610 is further configured to receive updated third configuration information from the network device when the quality of service parameter changes.

[0127] In a possible design, the communication apparatus 600 can correspond to the network device in the above method embodiments, or be configured in the network device as a component (such as a circuit, a chip, or a chip system, etc.). The communication apparatus 600 can be configured to perform steps or procedures performed by the network device in any of the above method embodiments.

[0128] For example, the communication module 610 is configured to send, to the terminal device, first configuration information, the first configuration information being used to indicate respective areas covered by the network device and corresponding area identifiers. The communication module 610 is further configured to receive, from the terminal device, a wireless link quality and an area identifier corresponding to an area where the terminal device is located. The communication module 610 is further configured to send, to the terminal device, second configuration information and third configuration information, the second configuration information being used to indicate an SMTC time offset corresponding to the area where the terminal device is located, and the third configuration information being used to indicate when the terminal device sends a measurement report after completing measurement on an SSB, the third configuration information being generated according to the wireless link quality and a quality of service parameter. The communication module 610 is further configured to receive the measurement report from the terminal device.

[0129] In one possible implementation, the communication module 610 is further configured to send fourth configuration information to the terminal device, the fourth configuration information being used to indicate the SMTC time offset corresponding to the terminal device.

[0130] In one possible implementation, the communication module 610 is further configured to receive an updated area identifier corresponding to the area where the terminal device is located from the terminal device. The communication module 610 is also configured to send updated second configuration information to the terminal device.

[0131] In one possible implementation, the communication module 610 is also used to send updated third configuration information to the terminal device when the quality of service parameters change.

[0132] Figure 7 This is a schematic diagram of another communication device provided in an embodiment of this application. The communication device 700 may be a chip, chip system, or processor, etc., used in network devices or terminal devices to implement the above methods. The communication device 700 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0133] like Figure 7 As shown, the communication device 700 may include one or more processors 710, which may also be referred to as processing units or processing modules, and can implement certain control functions. The processor 710 may be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, while the central processing unit can be used to control the communication device 700 (e.g., a base station, baseband chip, user, user chip), execute software programs, and process data from the software programs.

[0134] In an alternative design, the processor 710 may also store instructions and / or data, which can be executed by the processor 710 to cause the communication device 700 to perform the methods described in the above method embodiments.

[0135] In another alternative design, the communication device 700 may include a communication interface 720 for implementing receiving and transmitting functions. For example, the communication interface 720 may be a transceiver circuit, interface, interface circuit, or transceiver. The transceiver circuit, interface, interface circuit, or transceiver for implementing receiving and transmitting functions may be separate or integrated. The aforementioned transceiver circuit, interface, interface circuit, or transceiver may be used for reading and writing code / data, or it may be used for transmitting or relaying signals.

[0136] Optionally, the communication apparatus 700 can include one or more memories 730 that can store instructions, which can be executed by the processor 710, to cause the communication apparatus 700 to perform the methods described in the above method embodiments. Optionally, the memory 730 can also store data. Optionally, the processor 710 can also store instructions and / or data. The processor 710 and the memory 730 can be separately arranged, or integrated together.

[0137] It should be understood that, in a possible design, each step in the method embodiments provided in the present application can be completed by integrated logic circuits of hardware in the processor or instructions in the form of software. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as being completed by a hardware processor, or completed by a combination of hardware and software modules in the processor. The software modules can be located in random access memories, flash memories, read-only memories, programmable read-only memories, or electrically erasable programmable memories, registers, or other mature storage media in the art. The storage medium is located in the memory, and the processor reads information in the memory and combines the hardware to complete the steps of the above method. To avoid repetition, they will not be described in detail here.

[0138] In one implementation, the communication apparatus 700 can correspond to the terminal device in the above method embodiments, and can be used to execute each step and / or process executed by the terminal device in the above method embodiments. The processor 710 can be used to execute the instructions stored in the memory 730, and when the processor 710 executes the instructions stored in the memory, the processor 710 is used to execute each step and / or process of the above method embodiments corresponding to the terminal device.

[0139] In another implementation, the communication apparatus 700 can correspond to the network device in the above method embodiments, and can be used to execute each step and / or process executed by the network device in the above method embodiments. The processor 710 can be used to execute the instructions stored in the memory 730, and when the processor 710 executes the instructions stored in the memory, the processor 710 is used to execute each step and / or process of the above method embodiments corresponding to the network device.

[0140] It should be appreciated that the processor described above can be one or more chips. For example, the processor can be a field programmable gate array (FPGA), can be an application specific integrated circuit (ASIC), can be a system on chip (SoC), can be a central processor unit (CPU), can be a network processor (NP), can be a digital signal processor (DSP), can be a micro controller unit (MCU), can be a programmable logic device (PLD), or other integrated chip.

[0141] It can be appreciated that the memory in the embodiments of the present application can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. Among them, the nonvolatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM) used as an external cache. By way of example, and not limitation, many forms of RAM can be used, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct Rambus RAM (DR RAM). It should be noted that the memory of the system and method described herein is intended to include, but not be limited to, these and any other suitable types of memory.

[0142] According to the method provided in the embodiments of the present application, the present application further provides a processor, comprising: an input circuit, an output circuit and a processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit the signal through the output circuit, so that the processor executes the method provided in the embodiments of the present application.

[0143] In the implementation process, the processor can be one or more chips, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, a gate circuit, a flip-flop and various logic circuits. The input signal received by the input circuit can be received and input by, for example but not limited to, a receiver, the signal output by the output circuit can be output to and transmitted by, for example but not limited to, a transmitter, and the input circuit and the output circuit can be the same circuit which is used as the input circuit and the output circuit at different times. The embodiments of the present application do not limit the specific implementation of the processor and various circuits.

[0144] According to the method provided in the embodiments of the present application, the present application further provides a chip system, comprising one or more processors, configured to call and run instructions stored in a memory, so that the method provided in the embodiments of the present application is executed. The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0145] The chip system can include an input circuit or an interface for transmitting information or data, and an output circuit or an interface for receiving information or data.

[0146] According to the method provided in the embodiments of the present application, the present application further provides a communication system, comprising the terminal device and the network device.

[0147] According to the method provided in the embodiments of the present application, the present application further provides a computer program product, comprising: computer program code, when the computer program code is executed on a computer, the computer executes each step or process executed by the terminal device or the network device in any of the preceding method embodiments.

[0148] According to the method provided in the embodiments of the present application, the present application further provides a computer readable storage medium, which stores program code, when the program code is executed on a computer, the computer executes each step or process executed by the terminal device or the network device in any of the preceding method embodiments.

[0149] The computer readable storage medium can be the volatile memory or the non-volatile memory, or can include both the volatile memory and the non-volatile memory.

[0150] In the embodiments of the present application, each term and English abbreviation is an exemplary example given for convenience of description, and should not constitute any limitation on the present application. The present application does not exclude the possibility of defining other terms capable of achieving the same or similar functions in the existing or future protocols.

[0151] In the above embodiments, all or part can be realized by software, hardware, firmware or any combination thereof. When realized by software, all or part can be realized in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions according to the embodiments of the present application are generated.

[0152] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the above-described device embodiments are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0153] It should be understood that in various embodiments of the present application, the size of the serial number of each process does not mean the execution order, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0154] In summary, the above description is only a preferred embodiment of the technical scheme of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A communication method, characterized in that, Applied to a terminal device, the method includes: Receive first configuration information from a network device, the first configuration information being used to indicate the various areas covered by the network device and their corresponding area identifiers; Send the wireless link quality and the area identifier corresponding to the area where the terminal device is located to the network device; The system receives second and third configuration information from the network device. The second configuration information is used to indicate the measurement timing configuration SMTC time offset based on synchronization signal and physical broadcast channel block (SSB) corresponding to the area where the terminal device is located. The third configuration information is used to indicate when the terminal device sends a measurement report after completing the measurement of the SSB. The third configuration information is generated based on the wireless link quality and service quality parameters. The SSB sent by the network device is measured according to the second configuration information, and a measurement report is sent according to the third configuration information.

2. The method according to claim 1, characterized in that, Also includes: The system receives fourth configuration information from the network device, the fourth configuration information being used to indicate the SMTC time offset corresponding to the terminal device.

3. The method according to claim 2, characterized in that, The fourth configuration information includes a random number seed and a hash function. The hash function, combined with the random number seed and the terminal device's own identifier, is used to calculate the SMTC time offset corresponding to the terminal device.

4. The method according to any one of claims 1-3, characterized in that, The third configuration information is the first value, which instructs the terminal device to send the measurement report at the most recent reporting time after completing the measurement of SSB; The third configuration information is the second value, which instructs the terminal device to send the measurement report after a preset delay after completing the SSB measurement; The third configuration information is a third value, which instructs the terminal device to send the measurement report when the conditions are met after completing the measurement of SSB.

5. The method according to any one of claims 1-3, characterized in that, Also includes: Periodically, or after moving a preset distance, or after moving to another area, the updated area identifier corresponding to the area where the terminal device is located is sent to the network device. Receive updated second configuration information from the network device.

6. The method according to any one of claims 1-3, characterized in that, Also includes: When the quality of service parameters change, the updated third configuration information is received from the network device.

7. The method according to any one of claims 1-3, characterized in that, The first configuration information includes the latitude and longitude coordinates of the diagonal vertices of each area covered by the network device, and the corresponding area identifier.

8. A communication method, characterized in that, Applied to network devices, the method includes: Send first configuration information to the terminal device, wherein the first configuration information is used to indicate the various areas covered by the network device and the corresponding area identifiers; Receive the wireless link quality and the area identifier corresponding to the area where the terminal device is located from the terminal device; Send a second configuration information and a third configuration information to the terminal device. The second configuration information is used to indicate the measurement timing configuration SMTC time offset based on the synchronization signal and physical broadcast channel block SSB corresponding to the area where the terminal device is located. The third configuration information is used to indicate when the terminal device should send a measurement report after completing the measurement of the SSB. The third configuration information is generated based on the wireless link quality and service quality parameters. Receive measurement reports from the terminal device.

9. The method according to claim 8, characterized in that, Also includes: Send fourth configuration information to the terminal device, the fourth configuration information being used to indicate the SMTC time offset corresponding to the terminal device.

10. The method according to claim 9, characterized in that, The fourth configuration information includes a random number seed and a hash function. The hash function, combined with the random number seed and the terminal device's own identifier, is used to calculate the SMTC time offset corresponding to the terminal device.

11. The method according to any one of claims 8-10, characterized in that, The third configuration information is the first value, which instructs the terminal device to send the measurement report at the most recent reporting time after completing the measurement of SSB; The third configuration information is the second value, which instructs the terminal device to send the measurement report after a preset delay after completing the SSB measurement; The third configuration information is a third value, which instructs the terminal device to send the measurement report when the conditions are met after completing the measurement of SSB.

12. The method according to any one of claims 8-10, characterized in that, Also includes: Receive the updated area identifier corresponding to the area where the terminal device is located from the terminal device; The updated second configuration information is sent to the terminal device.

13. The method according to any one of claims 8-10, characterized in that, Also includes: When the quality of service parameters change, the updated third configuration information is sent to the terminal device.

14. The method according to any one of claims 8-10, characterized in that, The first configuration information includes the latitude and longitude coordinates of the diagonal vertices of each area covered by the network device, and the corresponding area identifier.

15. A communication device, characterized in that, The communication device includes a processor and a memory, wherein the memory stores instructions, and when the processor executes the instructions, the communication device performs the method as described in any one of claims 1-14.

16. A computer-readable storage medium having a computer program or instructions stored thereon, characterized in that, When the computer program or instructions are executed, they cause the computer to perform the method as described in any one of claims 1-14.

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