Communication method and device, terminal equipment and network equipment

Abstract

The invention discloses a communication method and device, terminal equipment and network equipment, and relates to the technical field of communication. According to the invention, network configuration based on layer 1 or layer 2 measurement reporting is realized through the configuration information, so that layer 1 measurement is carried out based on the layer 1 or layer 2 measurement reporting, and the terminal equipment triggers the measurement reporting. Since layer 1 measurement needs less time than layer 3 measurement and layer 3 filtering is not needed, the time delay in the whole mobility management is reduced, and the service interruption time is reduced as far as possible. Besides, if the condition or event that the terminal equipment triggers the measurement report is met, the measurement report is reported according to the configuration information, so that the terminal equipment triggers the measurement report, and the terminal equipment triggers the measurement report without issuing signaling and additionally configuring resources required by the report. And thus, the signaling and resource overhead can be reduced.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a communication method and apparatus, a terminal device, and a network device. Background Art

[0002] Mobility management mainly involves the measurement reporting of radio resource management (RRM). The goal of mobility management is to ensure that the terminal device can always maintain a good connection state in the network, can perform a fast and smooth handover when the terminal device moves, and can maximize the use of available network resources.

[0003] In the measurement reporting of RRM, the terminal device and the network device perform the measurement of reference signals and the reporting of measurement results. Among them, the reporting of measurement results can be divided into two forms: periodic and event-triggered. Periodic reporting means that the terminal device sends a measurement report to the network device at a certain time interval and reports the measurement results through the measurement report; event-triggered reporting means that the terminal device sends a measurement report to the network device only when certain specific conditions or events are met.

[0004] However, the measurement reporting of RRM is a layer 3 (L3)-based measurement reporting. The layer 3-based measurement reporting requires layer 3 measurement and layer 3 filtering, etc., and is reported through radio resource control (RRC) signaling. The layer 3 measurement and layer 3 filtering take a certain amount of time. Therefore, the layer 3-based measurement reporting may increase the delay in the entire mobility management, thereby increasing the service interruption time. Summary of the Invention

[0005] This application provides a communication method and apparatus, a terminal device, and a network device, aiming to implement layer 1 or layer 2-based measurement reporting.

[0006] In a first aspect, a communication method of this application includes:

[0007] Receiving configuration information, where the configuration information is used to configure layer 1 or layer 2-based measurement reporting;

[0008] If the conditions or events for triggering measurement reporting by the terminal device are met, sending a measurement report according to the configuration information.

[0009] It can be seen that in this embodiment, the network configuration realizes layer 1 or layer 2 measurement reporting through configuration information, so as to perform layer 1 measurement and trigger measurement reporting by the terminal device based on layer 1 or layer 2 measurement reporting. Since layer 1 measurement takes less time than layer 3 measurement and does not require layer 3 filtering, it is beneficial to reduce the delay in the entire mobility management and minimize the service interruption time as much as possible.

[0010] In addition, the terminal device triggering measurement reporting means that when the measurement result meets the reporting condition or event, the terminal device actively reports the measurement result to the network device. Different from the network device triggering measurement reporting, since the network device triggering measurement reporting means that the network device triggers the terminal device to report the measurement result through signaling, and the network device triggering measurement reporting requires sending the signaling for triggering the reporting and configuring the resources required for reporting, but the terminal device triggering measurement reporting can avoid sending signaling and does not require additional configuration of the resources required for reporting, which is beneficial to reducing signaling and resource overhead.

[0011] In a second aspect, a communication method of the present application includes:

[0012] Sending configuration information, where the configuration information is used to configure layer 1 or layer 2 measurement reporting;

[0013] If the condition or event for the terminal device to trigger measurement reporting is satisfied, receiving a measurement report.

[0014] In a third aspect, a communication device of the present application includes:

[0015] A receiving unit, configured to receive configuration information, where the configuration information is used to configure layer 1 or layer 2 measurement reporting;

[0016] A sending unit, configured to send a measurement report according to the configuration information if the condition or event for the terminal device to trigger measurement reporting is satisfied.

[0017] In a fourth aspect, a communication device of the present application includes:

[0018] A sending unit, configured to send configuration information, where the configuration information is used to configure layer 1 or layer 2 measurement reporting;

[0019] A receiving unit, configured to receive a measurement report if the condition or event for the terminal device to trigger measurement reporting is satisfied.

[0020] In a fifth aspect, the steps in the method designed in the first aspect above are applied to the terminal device or within the terminal device.

[0021] In a sixth aspect, the steps in the method designed in the second aspect above are applied to the network device or within the network device.

[0022] In a seventh aspect, a terminal device according to the present application includes a processor, a memory, and a computer program or instruction stored on the memory. Wherein, the processor executes the computer program or instruction to implement the steps in the method designed in the above first aspect.

[0023] In an eighth aspect, a network device according to the present application includes a processor, a memory, and a computer program or instruction stored on the memory. Wherein, the processor executes the computer program or instruction to implement the steps in the method designed in the above second aspect.

[0024] In a ninth aspect, a chip according to the present application includes a processor. Wherein, the processor executes the steps in the method designed in the above first aspect or second aspect.

[0025] Optionally, the chip further includes a communication interface, and the processor executes the sending step and / or receiving step in the method designed in the above first aspect or second aspect through the communication interface.

[0026] In a tenth aspect, a chip module according to the present application includes a chip, and the chip includes a processor. Wherein, the processor executes the steps in the method designed in the above first aspect or second aspect.

[0027] Optionally, the chip module further includes a transceiver component, and the processor executes the sending step and / or receiving step in the method designed in the above first aspect or second aspect through the transceiver component.

[0028] In an eleventh aspect, a computer-readable storage medium according to the present application stores a computer program or instruction, and when the computer program or instruction is executed, the steps in the method designed in the above first aspect or second aspect are implemented. For example, the computer program or instruction is executed by a processor.

[0029] In a twelfth aspect, a computer program product according to the present application includes a computer program or instruction. When the computer program or instruction is executed, the steps in the method designed in the above first aspect or second aspect are executed. For example, the computer program or instruction is executed by a processor.

[0030] In a thirteenth aspect, a communication system according to the present application includes a communication device (for example, a terminal device or a chip) for executing any one of the methods provided in the first aspect, and / or includes a communication device (for example, a network device or a chip) for executing any one of the methods provided in the second aspect.

[0031] The beneficial effects brought by the technical solutions of the second aspect to the thirteenth aspect can refer to the technical effects brought by the technical solution of the first aspect, and will not be elaborated here. Description of the Drawings

[0032] Figure 1 It is a schematic diagram of the architecture of a communication system according to an embodiment of the present application;

[0033] Figure 2 It is a schematic flowchart of a communication method according to an embodiment of the present application;

[0034] Figures 3 to 8 It is a schematic diagram of the structure of a MAC CE according to an embodiment of the present application;

[0035] Figure 9 It is a schematic flowchart of another communication method according to an embodiment of the present application;

[0036] Figure 10 It is a schematic flowchart of another communication method according to an embodiment of the present application;

[0037] Figure 11 It is a block diagram of the functional units of a communication device according to an embodiment of the present application;

[0038] Figure 12 It is a block diagram of the functional units of another communication device according to an embodiment of the present application;

[0039] Figure 13 It is a schematic diagram of the structure of a terminal device according to an embodiment of the present application;

[0040] Figure 14 It is a schematic diagram of the structure of a network device according to an embodiment of the present application. Detailed implementation manners

[0041] It should be understood that the terms "first", "second", etc. involved in the embodiments of the present application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, software, product or device that includes a series of steps or units is not limited to the listed steps or units, but may further include unlisted steps or units, or may further include other steps or units inherent to these processes, methods, products or devices.

[0042] The "embodiments" involved in the embodiments of the present application mean that the specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0043] The “and / or” in the embodiments of the present application is used to describe the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent the following three situations: A exists alone; A and B exist simultaneously; B exists alone. Among them, A and B can be singular or plural.

[0044] In the embodiments of the present application, the symbol “ / ” can indicate that the associated objects before and after are in an “or” relationship.

[0045] The “at least one (item)” or its similar expression in the embodiments of the present application refers to any combination of these items, including any combination of single item (s) or plural items (s), and means one or more, and multiple means two or more. For example, at least one (item) of a, b, or c can represent the following seven situations: “a”, “b”, “c”, “a and b”, “a and c”, “b and c”, “a, b, and c”. Among them, each of a, b, and c can be an element or a set containing one or more elements.

[0046] In the embodiments of the present application, “higher than” can be expressed as the same concept as “greater than”, “lower than” can be expressed as the same concept as “less than”, “not lower than” can be expressed as the same concept as “higher than or equal to” or “greater than or equal to”, and “not higher than” can be expressed as the same concept as “lower than or equal to” or “less than or equal to”. In the present application, for the same solution, “equal to” can be used in combination with “less than” or “greater than”, but not simultaneously with “less than” and “greater than”. When “equal to” is used in combination with “less than”, it applies to the technical solution adopted by “less than”. When “equal to” is used in combination with “greater than”, it applies to the technical solution adopted by “greater than”.

[0047] In the embodiments of the present application, “of”, “corresponding / relevant”, “corresponding”, “indicated”, “associated”, etc. can be used interchangeably with each other.

[0048] In the embodiments of the present application, “associated”, “corresponding”, “corresponding to”, “is”, “of”, “is”, “belongs to”, “as”, “regarded as” can sometimes be used interchangeably with each other.

[0049] In the embodiments of the present application, “monitoring metric / mechanism” can be used interchangeably with “monitoring method / approach / scheme / solution”, etc.

[0050] The "connection" in the embodiments of the present application refers to various connection methods such as direct connection or indirect connection to achieve communication between devices, and no specific limitation is imposed thereon.

[0051] The "network" in the embodiments of the present application can be expressed as the same concept as the "system", and a communication system is a communication network.

[0052] The following describes the relevant content, concepts, meanings, technical problems, technical solutions, and beneficial effects involved in the embodiments of the present application.

[0053] I. Communication System, Terminal Device, and Network Device

[0054]

Communication System

[0055] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolved system of NR system, LTE-based Access to Unlicensed Spectrum (LTE-U) system, NR-based Access to Unlicensed Spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), 6th-Generation (6G) communication system, or other communication systems, etc.

[0056] It should be noted that the number of connections supported by traditional communication systems is limited. With the development of communication technologies, the communication system of the present application can not only be a traditional communication system, but also be, for example, device to device (D2D) communication, machine to machine (M2M) communication, machine type communication (MTC), vehicle to vehicle (V2V) communication, vehicle to everything (V2X) communication, narrow band internet of things (NB-IoT) communication, etc.

[0057] Optionally, the technical solution of the embodiment of the present application can be applied to scenarios such as beamforming, carrier aggregation (CA), dual connectivity (DC), or standalone (SA) deployment scenarios.

[0058] Optionally, the spectrum used for communication between the terminal device and the network device can be an authorized frequency band or an unauthorized frequency band, and there is no limitation on this. Additionally, the unauthorized frequency band can be understood as a shared frequency band, and the authorized spectrum can be understood as a non-shared frequency band.

[0059] Since the embodiments of the present application describe each embodiment in combination with the terminal device and the network device, the terminal device and the network device involved will be specifically described below.

[0060]

Terminal Device

[0061] The terminal device can be a device with transceiver functions, and can also be referred to as a terminal, user equipment (UE), remote terminal device, relay device, access terminal device, user unit, user station, mobile station, mobile terminal, remote station, mobile device, user terminal device, intelligent terminal device, wireless communication device, user agent, or user device. It should be noted that a relay device is a terminal device that can provide relay forwarding services for other terminal devices (including remote terminal devices).

[0062] Optionally, the terminal device is a mobile phone, tablet computer (Pad), computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in unmanned autonomous driving, wireless terminal device in remote medical, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, or wireless terminal device in smart home, etc.

[0063] Optionally, the terminal device may be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication function, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a next-generation communication system (such as an NR communication system, 6G communication system), or terminal device in a future evolved Public Land Mobile Network (PLMN), etc., without specific limitation thereto.

[0064] Optionally, the terminal device may be deployed on land, including indoors or outdoors, handheld, wearable or in-vehicle; it may be deployed on water (such as a ship, etc.); it may be deployed in the air (such as an airplane, balloon, satellite, etc.).

[0065] Optionally, the terminal device includes a device with wireless communication function, such as a chip system, chip, chip module. By way of example, the chip system may include a chip and may also include other discrete devices.

[0066] Optionally, the terminal device may include a chip, chip module, device, unit, etc., without specific limitation thereto.

[0067] Optionally, the terminal device includes an intelligent module. Among them, the intelligent module may be a software unit and / or hardware unit that uses an AI model to perform air interface transmission processing. For example, the intelligent module may be used to perform processing such as compression / decompression on channel-related information. Additionally, the AI model may be activated or may not be activated.

[0068] Optionally, the intelligent module includes a chip, chip module, etc.

[0069]

Network device

[0070] The network device may be a device with transceiver function and may be used to communicate with the terminal device.

[0071] Optionally, the network device may be responsible for radio resource management (RRM) on the air interface side, quality of service (QoS) management, data compression and encryption, data transceiver, etc.

[0072] Optionally, the network device may include a base station (BS) in a communication system or a device deployed in a radio access network (RAN) for providing wireless communication functions, that is, the network device may include devices in the RAN.

[0073] For example, devices in the RAN may include an evolved Node B (eNB or eNodeB) in an LTE communication system, a next-generation evolved Node B (ng-eNB) in an NR communication system, a next-generation Node B (gNB) in an NR communication system, a master node (MN) in a dual-connection architecture, a second node or secondary node (SN) in a dual-connection architecture, etc., and no specific limitation is made thereto.

[0074] Optionally, the network device includes a device in a core network (CN).

[0075] For example, devices in the CN may include an access and mobility management function (AMF), a user plane function (UPF), a session management function (SMF), etc.

[0076] Optionally, the network device further includes an access point (AP) in a Wireless Local Area Network (WLAN), a relay station, a communication device in a future evolved PLMN network, a communication device in an NTN network, etc.

[0077] Optionally, the network device may include a device having a function of providing wireless communication for a terminal device, such as a chip system, a chip, or a chip module. By way of example, the chip system may include a chip or may include other discrete devices.

[0078] Optionally, the network device may include a transmission and reception point (TRP).

[0079] Optionally, the network device may communicate with an Internet Protocol (IP) network. For example, the Internet, a private IP network, or other data networks, etc.

[0080] Optionally, the network device may include an independent node to implement the functions of the above base station, or may include two or more independent nodes to implement the functions of the above base station. For example, the network device includes a centralized unit (CU) and a distributed unit (DU), such as gNB-CU and gNB-DU. Further, in some other embodiments of the present application, the network device may further include an active antenna unit (AAU). Among them, the CU implements a part of the functions of the network device, and the DU implements another part of the functions of the network device. For example, the CU is responsible for processing non-real-time protocols and services, and implements the functions of the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, and the packet data convergence protocol (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, and implements the functions of the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical (PHY) layer. In addition, the AAU may implement some physical layer processing functions, radio frequency processing, and functions related to active antennas. Since the information of the RRC layer will ultimately become the information of the PHY layer, or is transformed from the information of the PHY layer, therefore, in this network deployment, high-layer signaling (such as RRC signaling) can be considered to be generated by the CU and sent by the DU, or sent jointly by the DU and the AAU. It can be understood that the network device may include at least one of the CU, the DU, and the AAU. In addition, the CU may be classified as a RAN device, or the CU may also be classified as a core network device, and no specific limitation is made thereto.

[0081] Optionally, the network device may be any site in a multi-site that performs coherent joint transmission (CJT) with the terminal device, or another site outside the multi-site, or another network device that communicates with the terminal device over the network, without specific limitation thereto. Among them, the multi-site coherent joint transmission may be joint coherent transmission by multiple sites, or different data belonging to the same physical downlink shared channel (PDSCH) are sent from different sites to the terminal device, or multiple sites are virtualized into one site for transmission, or other forms of cooperative transmission, or names with the same meaning specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters. The sites in the multi-site coherent joint transmission may be Remote Radio Heads (RRHs), Transmission and Reception Points (TRPs), etc., without specific limitation thereto.

[0082] Optionally, the network device may be any site in a multi-site that performs non-coherent joint transmission with the terminal device, or another site outside the multi-site, or another network device that communicates with the terminal device over the network, without specific limitation thereto. Among them, the multi-site non-coherent joint transmission may be joint non-coherent transmission by multiple sites, or different data belonging to the same PDSCH are sent from different sites to the terminal device, or other forms of non-cooperative transmission, or names with the same meaning specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters. The sites in the multi-site non-coherent joint transmission may be RRHs, TRPs, etc., without specific limitation thereto.

[0083] It should be noted that the TRP in this application is not limited to the coherent joint transmission or non-coherent joint transmission scenarios, and may also be applicable to other scenarios, without specific limitation thereto.

[0084] Optionally, the network device may have mobility characteristics. For example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station located on land, water, etc.

[0085] Optionally, the network device may serve a cell, and the terminal device in the cell may communicate with the network device through transmission resources (such as spectrum resources). Among them, the cell may be a macro cell, a small cell, a metro cell, a micro cell, a pico cell, a femto cell, etc.

[0086] Optionally, the network device may be a chip, a chip module, a device, a unit, etc., without specific limitation.

[0087] Optionally, the network device may include an intelligent module. Among them, the intelligent module may be a software unit and / or a hardware unit that uses an AI model for air interface transmission processing. For example, the intelligent module may be used to perform processing such as compression / decompression on channel-related information. In addition, the AI model may be activated or may not be activated.

[0088] Optionally, the intelligent module may be a chip, a chip module, etc.

[0089]

Exemplary Explanation

[0090] The following gives an exemplary explanation of the communication system according to the embodiments of the present application.

[0091] Exemplarily, for the network architecture of a communication system according to an embodiment of the present application, reference may be made to Figure 1 . As Figure 1 shown, the communication system 10 may include a network device 110 and a terminal device 120. The terminal device 120 may communicate with the network device 110 wirelessly.

[0092] Figure 1 This is only an example of the network architecture of a communication system, and does not limit the network architecture of the communication system according to the embodiments of the present application.

[0093] For example, the communication system 10 may further include a server or other devices.

[0094] For another example, in addition to the network device 110, the communication system 10 may include other network devices.

[0095] For another example, in addition to the terminal device 120, the communication system 10 may include other terminal devices.

[0096] II. Measurement Reporting Based on Layer 1 or Layer 2

[0097] 1. Description

[0098] In a communication system, different interfaces can define their respective protocol stacks, and the protocols can be layered, such as layer 1 (L1), layer 2 (L2), and layer 3 (L3). Among them, layer 1 can refer to the physical layer protocol; layer 2 can refer to the data link layer, and / or can include the PDCP layer, and / or the radio link control (RLC) layer, and / or the MAC layer; layer 3 can refer to the network layer and can include the RRC layer.

[0099] Since layer-3-based measurement reporting requires layer-3 measurements, layer-3 filtering, etc., and is reported through RRC signaling, and layer-3 measurements and layer-3 filtering take a certain amount of time, layer-3-based measurement reporting may increase the latency in the entire mobility management, thereby increasing the service interruption time.

[0100] Based on this, this embodiment considers layer-1 or layer-2-based measurement reporting. Among them, layer-1 or layer-2-based measurement reporting requires layer-1 measurements, but does not require layer-3 filtering, and is reported through uplink control information (UCI) or MAC signaling (such as MAC control element (MAC CE)). In this way, since layer-1 measurements take less time than layer-3 measurements and do not require layer-3 filtering, it is beneficial to reduce the latency in the entire mobility management and minimize the service interruption time as much as possible.

[0101] In addition, this embodiment requires the terminal device to trigger measurement reporting. Among them, the terminal device triggering measurement reporting means that the terminal device actively reports the measurement result to the network device when the measurement result meets the reporting condition or event. Different from the network device triggering measurement reporting, since the network device triggering measurement reporting means that the network device triggers the terminal device to report the measurement result through signaling, and the network device triggering measurement reporting requires sending the signaling for triggering the reporting and configuring the resources required for reporting, but the terminal device triggering measurement reporting can avoid sending signaling and additional configuration of the resources required for reporting, thereby facilitating reducing the signaling and resource overhead.

[0102] 2. Layer 1 Measurement

[0103] In layer 1 or layer 2-based measurement reporting, the terminal device of this embodiment needs to perform layer 1 measurement, which takes less time than layer 3 measurement and does not require layer 3 filtering, thus helping to reduce the latency in the entire mobility management and minimize the service interruption time as much as possible. Among them, layer 1 measurement can be CSI measurement or layer 1 or layer 2-triggered mobility (LTM) measurement. The CSI measurement and LTM measurement are described below respectively.

[0104]

CSI Measurement

[0105] The network device can provide high-quality services for more terminal devices simultaneously. A key link among them is that the network device precodes the downlink data. Through precoding, spatial multiplexing can be achieved, the interference between different data streams can be reduced, the signal to interference plus noise ratio (SINR) at the receiving end can be improved, and thus the system throughput can be enhanced.

[0106] In order to more accurately precode the downlink data of the terminal device, the network device needs to perform CSI measurement. In the CSI measurement, the terminal device can measure the downlink channel of the cell according to the CSI measurement resources to obtain the measurement value of the cell (the measurement value includes CSI information and / or downlink channel information). In this way, after the terminal device reports the measurement value of the cell to the network device, the network device can determine information such as the precoding matrix according to the measurement value, so as to precode the downlink data and finally send the downlink data to the terminal device.

[0107] Optionally, the type of CSI measurement resources includes at least one of non-zero-power-channel state information-reference signal (NZP-CSI-RS) resources, CSI-interference-measurement (CSI-IM) resources, and CSI-synchronization signal block (CSI-SSB) resources. NZP-CSI-RS resources can be used for channel measurement and / or interference measurement; CSI-IM resources can be used for interference measurement; CSI-SSB resources can be used for channel measurement.

[0108] In addition, the types of CSI measurement resources may also include channel measurement resources (CMR) and / or interference measurement resources (IMR). Among them, channel measurement resources refer to the measurement resources used for channel measurement, such as NZP-CSI-RS resources or CSI-SSB resources; interference measurement resources refer to the measurement resources used for interference measurement, such as NZP-CSI-RS resources and CSI-IM resources.

[0109] The time domain behavior of CSI measurement resources may include periodic CSI measurement resources, aperiodic measurement resources, and semi-persistent CSI measurement resources. Among them, the time domain behavior of CSI measurement resources can be indicated by higher layer parameters (such as the resource type resourceType).

[0110] For periodic CSI measurement resources, after the network device configures the periodic measurement resources, the network device will send the CSI measurement resources periodically.

[0111] For aperiodic CSI measurement resources, after the network device configures the aperiodic CSI measurement resources, the network device will not immediately send the CSI measurement resources. Instead, it will be triggered by trigger signaling and then send the aperiodic CSI measurement resources to the terminal device after the trigger.

[0112] For semi-persistent CSI measurement resources, after the network device configures the semi-persistent CSI measurement resources, the network device will not immediately send the CSI measurement resources. Instead, it will first send activation signaling and then send the semi-persistent CSI measurement resources to the terminal device after activation. Among them, once the network device triggers the sending of semi-persistent CSI measurement resources, it will send the CSI measurement resources periodically until the network device issues deactivation signaling.

[0113] CSI information can characterize the information of the downlink channel matrix. After the terminal device reports the CSI information to the network device, the network device can recover the downlink channel information based on the CSI information, and then determine information such as the precoding matrix according to the downlink channel information. The higher the accuracy of the CSI feedback by the terminal device, the more information of the downlink channel matrix it can characterize, the more accurate the downlink channel information that the network device can recover based on the CSI information, the more accurate the precoding matrix determined by the network device, the better the downlink spatial division multiplexing performance, the higher the received signal-to-interference-plus-noise ratio of the terminal device, and the higher the system throughput.

[0114] Alternatively, after the terminal device feeds back CSI information to the network device, the network device may not need to restore the downlink channel information, but determine information such as the precoding matrix based on the CSI information. In this case, the higher the accuracy of the CSI information, the more accurate the precoding matrix determined by the network device.

[0115] Optionally, the CSI information includes at least one of the following: CSI reference signal resource indication index (CSI-RS Resource indicator, CRI), synchronization signal block resource indication index (SSB resource indicator, SSBRI), rank indication index (rank indicator, RI), precoding matrix indication index (precoding matrix indicator, PMI), channel quality indication index (channel quality indicator, CQI), layer indication index (layer indicator, LI), capability index (Capability Index), time-domain channel properties (time-domain channel properties, TDCP), etc.

[0116] Optionally, the downlink channel information includes at least one of the following: channel matrix H, equivalent channel matrix, precoding matrix W (the precoding matrix W can be derived from the channel matrix H), right singular vector V of the channel matrix H, square matrix H T eigenvector of H (i.e., the eigenvector of the matrix obtained by multiplying the conjugate transpose H of the channel matrix T by the channel matrix H), at least one vector associated with the channel matrix H (such as at least one vector under a certain transformation of the channel matrix H, etc.), time-domain information of the channel, channel information in the delay-doppler domain, CRI, SSBRI, RI, PMI, CQI, LI, CSI, L1-SINR, layer 1 received signal strength indicator (received signal strength indicator, L1-RSSI), layer 1 reference signal received power (L1-reference signal received power, L1-RSRP), or layer 1 reference signal received quality (L1-reference signal received quality, L1-RSRQ), etc.

[0117]

LTM Measurement

[0118] When the terminal device moves from the coverage area of one cell to the coverage area of another cell, handover of the serving cell will be performed. Currently, handover of the serving cell is triggered based on layer 3 measurements and RRC signaling, and then a complete L2 / L1 reset is performed, which brings a relatively long interruption time and signaling overhead during the whole process.

[0119] Based on this, this embodiment considers LTM. Among them, LTM aims to trigger handover of the serving cell through layer 1 measurements and layer 2 signaling. Compared with handover of the serving cell triggered based on layer 3 measurements and RRC signaling, L1 / L2 mobility can reduce service interruption time, that is, reduce the time delay during the whole mobility process. That is to say, L1 / L2 mobility uses L1 / L2 signaling to perform handover of the serving cell to achieve the goals of low latency, low overhead, and low data interruption time.

[0120] During the LTM process, the network device can provide multiple candidate cells to the terminal device, and then the network device can control the terminal device to perform handover among multiple candidate cells (or cell groups) through L2 signaling (such as MAC CE signaling). Among them, one serving cell can correspond to one or more candidate cells.

[0121] In addition, for the multi-radio dual connectivity (MR-DC) scenario, by configuring multiple candidate secondary cell groups (SCGs) for the terminal device, the terminal device can perform continuous SCG changes according to the indication of the network device or pre-configured decision conditions, which reduces signaling overhead and the interruption time of SCG change due to no need for re-configuration.

[0122] In LTM measurements, the terminal device can measure the downlink channel of the cell according to LTM measurement resources to obtain the measurement value of the cell. In this way, after the terminal device reports the measurement value of the cell to the network device, the network device can perform cell handover, etc. according to the measurement value.

[0123] Optionally, the types of LTM measurement resources include at least one of NZP-LTM resources, LTM-IM resources, and LTM-SSB resources. NZP-LTM resources can be used for channel measurement and / or interference measurement; LTM-IM resources can be used for interference measurement; LTM-SSB resources can be used for channel measurement.

[0124] Optionally, the time-domain behavior of LTM measurement resources can include periodic LTM measurement resources, aperiodic measurement resources, and semi-persistent LTM measurement resources. Among them, the time-domain behavior of LTM measurement resources can be indicated by a high-layer parameter (such as the resource type resourceType).

[0125] For periodic LTM measurement resources, after the network device configures the periodic measurement resources, the network device will send the LTM measurement resources periodically.

[0126] For aperiodic LTM measurement resources, after the network device configures the aperiodic LTM measurement resources, the network device will not immediately send the LTM measurement resources. Instead, it is triggered by a trigger signaling, and then sends the aperiodic LTM measurement resources to the terminal device after the trigger.

[0127] For semi-persistent LTM measurement resources, after the network device configures the semi-persistent LTM measurement resources, the network device will not immediately send the LTM measurement resources. Instead, it first sends an activation signaling, and then sends the semi-persistent LTM measurement resources to the terminal device after activation. Among them, once the network device triggers the sending of the semi-persistent LTM measurement resources, it will send the LTM measurement resources periodically until the network device issues a deactivation signaling.

[0128] Optionally, the measurement value includes at least one of the following: L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI.

[0129]

Network Configuration for Layer 1 Measurement

[0130] Combined with the above content, this embodiment needs to perform network configuration for layer 1 measurement. Specifically, the network device can configure LTM measurement or CSI measurement for the terminal device through high-layer signaling (such as RRC signaling) or DCI.

[0131] For network configuration of LTM measurement, the network device can configure at least one of the time-domain behavior of the LTM measurement resources, the resource type of the LTM measurement resources, or the time-frequency domain position of the LTM measurement resources, etc. for the terminal device. In this way, the terminal device can perform LTM measurement according to these configurations.

[0132] For network configuration of CSI measurement, the network device can configure at least one of the time-domain behavior of the CSI measurement resources, the resource type of the CSI measurement resources, or the time-frequency domain position of the CSI measurement resources, etc. for the terminal device. In this way, the terminal device can perform CSI measurement according to these configurations.

[0133] Next, taking the interaction between the network device and the terminal device as an example, an example description of "network configuration for layer 1 measurement" is given. As Figure 2 shown, Figure 2 is a schematic flowchart of a communication method according to an embodiment of the present application. Among them, the method includes the following steps:

[0134] S210. The network device sends measurement configuration information, which is used to configure LTM measurement or CSI measurement.

[0135] Correspondingly, the terminal device receives the measurement configuration information.

[0136] It can be seen that in this embodiment, layer 1 measurement of the network is implemented through the measurement configuration information.

[0137] Optionally, the measurement configuration information includes at least one of time domain information, type information, or location information; the time domain information is used to configure the time domain behavior of the measurement resource; the type information is used to configure the type of the measurement resource; the location information is used to configure the time-frequency domain location of the measurement resource.

[0138] Herein, the measurement resource includes an LTM measurement resource or a CSI measurement resource; the time domain behavior of the measurement resource includes the time domain behavior of the LTM measurement resource or the time domain behavior of the CSI measurement resource; the type of the measurement resource includes the type of the LTM measurement resource or the type of the CSI measurement resource; the time-frequency domain location of the measurement resource includes the time-frequency domain location of the LTM measurement resource or the time-frequency domain location of the CSI measurement resource.

[0139] It can be seen that the time domain behavior of the LTM measurement resource or the CSI measurement resource is configured by the network through the time domain information. The resource type of the LTM measurement resource or the CSI measurement resource is configured by the network through the type information. The time-frequency domain location of the LTM measurement resource or the CSI measurement resource is configured by the network through the location information.

[0140] 3. The terminal device triggers measurement reporting

[0141] In the measurement reporting based on layer 1 or layer 2, in this embodiment, the terminal device needs to trigger the measurement reporting. Compared with the network device triggering the measurement reporting, the terminal device triggering the measurement reporting can avoid sending the signaling for triggering the reporting and does not require additional configuration of the resources required for reporting, which is beneficial to reducing the signaling and resource overhead.

[0142]

Conditions or events for the terminal device to trigger measurement reporting

[0143] In the terminal device triggering the measurement reporting, in this embodiment, it is necessary to define the conditions or events for the terminal device to trigger the measurement reporting. In this way, if the conditions or events for the terminal device to trigger the measurement reporting are met, the terminal device can report the measurement report to the network device.

[0144] When the measurement report is obtained based on CSI measurement, the network device can determine information such as the precoding matrix according to the measurement report, so as to perform precoding on the downlink data and finally send the downlink data to the terminal device. When the measurement report is obtained based on LTM measurement, the network device can perform cell handover according to the measurement report.

[0145] Since the terminal device can measure the downlink channel of the serving cell according to measurement resources (such as LTM measurement resources or CSI measurement resources) to obtain the measurement value of the serving cell, and / or measure the downlink channel of the candidate cell according to the measurement resources to obtain the measurement value of the candidate cell, this embodiment can define the conditions or events for the terminal device to trigger measurement reporting according to the measurement value of the serving cell and / or the measurement value of the candidate cell.

[0146] Optionally, the conditions or events for the terminal device to trigger measurement reporting may include at least one of the following: condition or event A1, condition or event A2, condition or event A3, condition or event A4, condition or event A5, or condition or event A6.

[0147]

Condition or event A1

[0148] Condition or event A1 can indicate that the measurement value of the serving cell is greater than a preset threshold TH_A1 (TH_A1 here can be denoted as the "first preset threshold"). Among them, TH_A1 can be network-configured, pre-configured, or specified by the protocol.

[0149] In this way, when the measurement value of the serving cell is greater than TH_A1 (i.e., condition or event A1 is satisfied), it means that the entry condition of condition or event A1 is met, and the terminal device sends a measurement report to the network device. When the measurement value of the serving cell is less than or equal to TH_A1 (i.e., condition or event A1 is not satisfied), it means that the leave condition of condition or event A1 is met, and the terminal device does not send a measurement report to the network device. Among them, the measurement report can include various types of information, which will be illustrated by examples below.

[0150] Optionally, the measurement report may include information for indicating the measurement resources (such as CSI-RS or SSB) required to be reported for the serving cell or the beams required to be reported for the serving cell (the information here can be denoted as the "first indication information").

[0151] It should be noted that the network device configures one or more measurement resources for the serving cell of the terminal device. Since the measurement resources can correspond to beams, the network configuring one or more measurement resources for the serving cell can be the network configuring one or more beams for the serving cell. Then, the terminal device can perform downlink channel measurement according to all the measurement resources of the serving cell to obtain the measurement values of all the measurement resources, or perform downlink channel measurement according to all the beams of the serving cell to obtain the measurement values of all the beams. Finally, the terminal device can report to the network device the measurement resources required to be reported for the serving cell or the beams required to be reported for the serving cell through the measurement report, so that the network device can know this information.

[0152] Optionally, the measurement resources required to be reported by the serving cell include one of the following: all measurement resources of the serving cell, at least one measurement resource that meets condition or event A1 among all measurement resources of the serving cell, or the measurement resource corresponding to the maximum value among all measurement values of all measurement resources of the serving cell.

[0153] In this way, according to different scenario requirements, the terminal device can report different measurement resources of the serving cell to the network device through the measurement report to meet different requirements of the network device.

[0154] Optionally, the beams required to be reported by the serving cell include one of the following: all beams of the serving cell, at least one beam that meets condition or event A1 among all beams of the serving cell, or the beam corresponding to the maximum value among all measurement values of all beams of the serving cell.

[0155] In this way, according to different scenario requirements, the terminal device can report different beams of the serving cell to the network device through the measurement report to meet different requirements of the network device.

[0156] Optionally, the measurement report may include measurement values (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI) for indicating the measurement resources required to be reported by the serving cell or information on the measurement values of the beams required to be reported by the serving cell (the information here can be denoted as "second indication information").

[0157] In this way, the terminal device can report the measurement values of the measurement resources required to be reported by the serving cell or the measurement values of the beams required to be reported by the serving cell to the network device through the measurement report so that the network device can obtain this information. When the measurement resources or beams required to be reported by the serving cell include all measurement resources or beams of the serving cell, the terminal device can report the measurement values of all measurement resources or beams of the serving cell to the network device. When the measurement resources or beams required to be reported by the serving cell include at least one measurement resource or beam that meets condition or event A1 among all beams of the serving cell, the terminal device can send the measurement values of the at least one measurement resource or beam to the network device. When the measurement resources or beams required to be reported by the serving cell include the measurement resource or beam corresponding to the maximum value among all measurement values of all measurement resources or beams of the serving cell, the terminal device can send the maximum value among all measurement values of all measurement resources or beams of the serving cell to the network device.

[0158] Optionally, the measurement report may include information (the information here can be denoted as "ninth indication information") for indicating the bandwidth part (BWP) applicable to the MAC CE carrying the measurement report.

[0159] For example, the measurement report may include bandwidth part identification (BWP ID) information, which can be used to indicate the BWP applicable to the MAC CE carrying the measurement report.

[0160] It can be seen that the terminal device can report to the network device the BWP applicable to the MAC CE carrying the measurement report through the measurement report, so that the network device can obtain this information.

[0161] Optionally, the measurement report may include information for indicating the identification of the measurement report (the information here can be denoted as "tenth indication information").

[0162] For example, the measurement report may include report identification (report ID) information, which can be used to indicate the identification of the measurement report.

[0163] It can be seen that the terminal device can report to the network device the identification of the measurement report through the measurement report, so that the network device can obtain this information.

[0164] Optionally, the measurement report may include information for indicating the entry condition or departure condition for the measurement report to meet condition or event A1.

[0165] For example, the measurement report may include enter / leave (E / L) information, which can be used to indicate whether the measurement report meets the entry condition or departure condition of condition or event A1.

[0166] It can be seen that the terminal device can report to the network device the entry condition or departure condition for the measurement report to meet condition or event A1 through the measurement report, so that the network device can obtain this information.

[0167] Taking the measurement report carried by the MAC CE as an example, the following gives an example description of various types of information carried by the measurement report.

[0168] For example, as Figure 3 shown, the MAC CE triggered by the terminal device for measurement reporting is identified by a MAC sub-header, and its logical channel ID (LCID) is a specific value. Among them, the MAC CE may include the following fields:

[0169] BWP ID field: This field can be used to indicate the BWP applicable to the MAC CE, and the length of this field is 2 bits;

[0170] Report ID field: This field can be used to indicate the identification of the measurement report, and the length of this field is 2 bits;

[0171] E / L field: This field can be used to indicate whether the measurement report meets the entry condition or the exit condition of condition or event A1;

[0172] R field: This field represents reservation;

[0173] RI field: This field can be SSBRI or CRI, and can be used to indicate the measurement resources (such as CSI-RS or SSB) required to be reported by the serving cell or the beam required to be reported by the serving cell, and the length of this field is 8 bits.

[0174] RSRP / SINR field: This field can be used to indicate the measurement value of the measurement resources (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI) required to be reported by the serving cell or the measurement value of the beam required to be reported by the serving cell. This field corresponds to the RI field, and the length of this field is 7 bits.

[0175] In addition, when there are multiple measurement resources or beams required to be reported by the serving cell, the MAC CE includes multiple RI fields and multiple RSRP / SINR fields. The multiple RI fields correspond one-to-one with the multiple measurement resources or beams, and the multiple RI fields correspond one-to-one with the multiple RSRP / SINR fields, as Figure 4 shown.

[0176] Of course, Figure 3 and Figure 4 is only an example description of the structure of the MAC CE, and this embodiment does not limit the structure of the MAC CE.

[0177]

Condition or Event A2

[0178] Condition or event A2 can indicate that the measurement value of the serving cell is less than a preset threshold TH_A2 (TH_A2 here can be denoted as the "second preset threshold"). Among them, TH_A2 can be network-configured, pre-configured, or protocol-specified.

[0179] In this way, when the measurement value of the serving cell is less than TH_A2 (i.e., condition or event A2 is satisfied), it means that the entry condition of condition or event A2 is satisfied, and the terminal device sends a measurement report to the network device. When the measurement value of the serving cell is greater than or equal to TH_A2 (i.e., condition or event A2 is not satisfied), it means that the exit condition of condition or event A2 is satisfied, and the terminal device does not send a measurement report to the network device. Among them, the measurement report can include various types of information, which will be illustrated by examples below.

[0180] Optionally, the measurement report may include information for indicating the measurement resources (such as CSI-RS or SSB) required to be reported for the serving cell or the beams required to be reported for the serving cell (the information here may be denoted as "first indication information").

[0181] Optionally, the measurement resources required to be reported for the serving cell include one of the following: all measurement resources of the serving cell, at least one measurement resource that meets condition or event A2 among all measurement resources of the serving cell, or the measurement resource corresponding to the maximum value among all measurement values of all measurement resources of the serving cell.

[0182] Optionally, the beams required to be reported for the serving cell include one of the following: all beams of the serving cell, at least one beam that meets condition or event A2 among all beams of the serving cell, or the beam corresponding to the maximum value among all measurement values of all beams of the serving cell.

[0183] Optionally, the measurement report may include information for indicating the measurement values of the measurement resources required to be reported for the serving cell (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI) or the measurement values of the beams required to be reported for the serving cell (the information here may be denoted as "second indication information").

[0184] Optionally, the measurement report may include information for indicating the BWP applicable to the MAC CE carrying the measurement report (the information here may be denoted as "ninth indication information").

[0185] Optionally, the measurement report may include information for indicating the identifier of the measurement report (the information here may be denoted as "tenth indication information").

[0186] Optionally, the measurement report may include information for indicating the entry condition or departure condition for the measurement report to meet condition or event A2.

[0187]

Condition or event A3

[0188] Condition or event A3 may indicate that the measurement value of the candidate cell is higher than the measurement value of the serving cell by a preset offset. The preset offset may be network-configured, pre-configured, or specified by the protocol.

[0189] It should be noted that in LTM measurement, the network device configures multiple candidate cells for the terminal device, and then the network device can control the terminal device to perform handover among multiple candidate cells through L2 signaling (such as MAC CE signaling). Among them, one serving cell may correspond to one or more candidate cells.

[0190] In this way, when the measurement value of a candidate cell is higher than the measurement value of the serving cell by a preset offset, it indicates that the entry condition of condition or event A3 is met, and the terminal device sends a measurement report to the network device. When the measurement value of the candidate cell is not higher than the preset offset (i.e., the condition or event A3 is not met) than the measurement value of the serving cell, it indicates that the departure condition of condition or event A3 is met, and the terminal device does not send a measurement report to the network device.

[0191] Optionally, the preset offset corresponds to each candidate cell one by one. In this way, when the network device configures multiple candidate cells for the terminal device, each candidate cell can correspond to a preset offset, and different candidate cells can correspond to different preset offsets.

[0192] Optionally, the preset offset corresponds to the beam or measurement resource of the candidate cell one by one. In this way, when the network device configures multiple beams or measurement resources of the candidate cell for the terminal device, each beam or measurement resource can correspond to a preset offset, and different beams or measurement resources can correspond to different preset offsets.

[0193] Optionally, the preset offset corresponds to the beam group or measurement resource group of the candidate cell one by one. In this way, when the network device configures multiple beams or measurement resources of the candidate cell for the terminal device, in this embodiment, the multiple beams or measurement resources can be grouped to obtain one or more beam groups or measurement resource groups, and it is set that each beam group or measurement resource group can correspond to a preset offset, and different beam groups or measurement resource groups can correspond to different preset offsets.

[0194] It should be noted that, similar to the above, the measurement report may include at least one of the following information: information indicating the BWP applicable to the MAC CE carrying the measurement report, information indicating the identifier of the measurement report, and information indicating that the measurement report meets the entry condition or departure condition of condition or event A3.

[0195] In addition, the measurement report may include the measurement resources or beams required to be reported by the serving cell and / or candidate cell, and / or the measurement values of these measurement resources or beams. The following will be described in multiple ways.

[0196] "Method 1"

[0197] Similar to the above, in "Method 1", in this embodiment, only the serving cell or candidate cell that needs to be reported is indicated. The following is an example for illustration.

[0198] Optionally, the measurement report may include information indicating the measurement resources (such as CSI-RS or SSB) required to be reported by the serving cell or the beams required to be reported by the serving cell (the information here can be denoted as "first indication information").

[0199] Optionally, the measurement resources required to be reported by the serving cell include one of the following: all measurement resources of the serving cell, or the measurement resources corresponding to the maximum value among all measurement values of all measurement resources of the serving cell.

[0200] Optionally, the beams required to be reported by the serving cell include one of the following: all beams of the serving cell, or the beam corresponding to the maximum value among all measurement values of all beams of the serving cell.

[0201] Optionally, the measurement report may include measurement values (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI) for indicating the measurement resources required to be reported by the serving cell, or information on the measurement values of the beams required to be reported by the serving cell (the information here may be denoted as "second indication information").

[0202] Optionally, the measurement report may include information on the measurement resources (such as CSI-RS or SSB) required to be reported by the candidate cell, or the beams required to be reported by the candidate cell (the information here may be denoted as "third indication information").

[0203] It should be noted that the network device configures one or more measurement resources of the candidate cell for the terminal device. Since the measurement resources can correspond to beams, the network configuring one or more measurement resources of the candidate cell can be the network configuring one or more beams of the candidate cell. Then, the terminal device can perform downlink channel measurements based on all measurement resources of the candidate cell to obtain the measurement values of all measurement resources, or perform downlink channel measurements based on all beams of the candidate cell to obtain the measurement values of all beams. Finally, the terminal device can report to the network device the measurement resources required to be reported by the candidate cell or the beams required to be reported by the candidate cell through the measurement report, so that the network device can obtain this information.

[0204] Optionally, the measurement report may include measurement values (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI) for indicating the measurement resources required to be reported by the candidate cell, or information on the measurement values of the beams required to be reported by the candidate cell (the information here may be denoted as "second indication information").

[0205] In this way, the terminal device can report to the network device, via a measurement report, the measurement value of the measurement resources required to be reported for a candidate cell or the measurement value of the beam required to be reported for the candidate cell, so that the network device can obtain this information. When the measurement resources or beams required to be reported for the candidate cell include all the measurement resources or beams of the candidate cell, the terminal device can report to the network device the measurement values of all the measurement resources or beams of the candidate cell. When the measurement resources or beams required to be reported for the candidate cell include at least one measurement resource or beam that meets condition or event A1 among all the beams of the candidate cell, the terminal device can send to the network device the measurement value of the at least one measurement resource or beam. When the measurement resources or beams required to be reported for the candidate cell include the measurement resource or beam corresponding to the maximum value among all the measurement values of all the measurement resources or beams of the candidate cell, the terminal device can send to the network device the maximum value among all the measurement values of all the measurement resources or beams of the candidate cell.

[0206] Optionally, the measurement resources required to be reported for the candidate cell include one of the following: all the measurement resources of the candidate cell, at least one measurement resource that meets condition or event A3 among all the measurement resources of the candidate cell, or the measurement resource corresponding to the maximum value among all the measurement values of all the measurement resources of the candidate cell.

[0207] In this way, according to different scenario requirements, the terminal device can report different measurement resources of the candidate cell to the network device via a measurement report to meet different requirements of the network device.

[0208] Optionally, the beams required to be reported for the candidate cell include one of the following: all the beams of the candidate cell, at least one beam that meets condition or event A3 among all the beams of the candidate cell, or the beam corresponding to the maximum value among all the measurement values of all the beams of the candidate cell.

[0209] In this way, according to different scenario requirements, the terminal device can report different beams of the candidate cell to the network device via a measurement report to meet different requirements of the network device.

[0210] Taking the measurement report carried by a MAC CE as an example, the following gives an example of the various types of information carried by the measurement report.

[0211] For example, as Figure 5 shown, the MAC CE that triggers the measurement report by the terminal device is identified by a MAC sub-header, and its LCID is a specific value. Among them, the MAC CE may include the following fields:

[0212] BWP ID field: This field can be used to indicate the BWP applicable to this MAC CE, and the length of this field is 2 bits;

[0213] Report ID field: This field can be used to indicate the identity of the measurement report, and the length of this field is 2 bits;

[0214] E / L field: This field can be used to indicate whether the measurement report meets the entry condition or the exit condition of condition or event A3;

[0215] R field: This field indicates reservation;

[0216] First RI field: This field can be the first SSBRI / CRI field, which can be used to indicate the measurement resources (such as CSI-RS or SSB) or the beams that the serving cell needs to report, and the length of this field is 8 bits.

[0217] First RSRP / SINR field: This field can be used to indicate the measurement value of the measurement resources (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI) that the serving cell needs to report or the measurement value of the beams that the serving cell needs to report. This field corresponds to the RI field, and the length of this field is 7 bits.

[0218] Second RI field: This field can be the second SSBRI / CRI field, which can be used to indicate the measurement resources (such as CSI-RS or SSB) or the beams that the candidate cell needs to report, and the length of this field is 8 bits.

[0219] Second RSRP / SINR field: This field can be used to indicate the measurement value of the measurement resources (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI) that the candidate cell needs to report or the measurement value of the beams that the candidate cell needs to report. This field corresponds to the RI field, and the length of this field is 7 bits.

[0220] In addition, when there are multiple measurement resources or beams that the serving cell needs to report, the MAC CE includes multiple first RI fields and multiple first RSRP / SINR fields. The multiple first RI fields correspond one-to-one with the multiple measurement resources or beams, and the multiple first RI fields correspond one-to-one with the multiple first RSRP / SINR fields. When there are multiple measurement resources or beams that the candidate cell needs to report, the MAC CE includes multiple second RI fields and multiple second RSRP / SINR fields. The multiple second RI fields correspond one-to-one with the multiple measurement resources or beams, and the multiple second RI fields correspond one-to-one with the multiple second RSRP / SINR fields.

[0221] Of course, Figure 5 This is only an example description of the structure of the MAC CE, and this embodiment does not limit the structure of the MAC CE.

[0222] "Mode 2"

[0223] In "Mode 2", this embodiment needs to indicate the reporting or non-reporting status of each cell. The following is an example for illustration.

[0224] Optionally, the measurement report may include information for indicating the reporting or non-reporting status of the i-th cell (this information can be denoted as "fifth indication information" here). For example, taking this information as 1 bit, if the bit value of this information is 1, the i-th cell is in the reporting state; if the bit value of this information is 0, the i-th cell is in the non-reporting state. Conversely, if the bit value of this information is 0, the i-th cell is in the reporting state; if the bit value of this information is 1, the i-th cell is in the non-reporting state.

[0225] Where i = 0, 1,..., M - 1, i represents the cell index, and M represents the maximum number of cells; the i-th cell being in the reporting state means that the i-th cell meets the condition or event A3, and the i-th cell being in the non-reporting state means that the i-th cell does not meet the condition or event A3.

[0226] It should be noted that generally there is only one serving cell, and the network can configure multiple candidate cells, and these cells have the maximum number of cells. In "Mode 2", this embodiment can indicate the reporting or non-reporting status of each cell. In this way, the terminal device can report the reporting or non-reporting status of each cell to the network device through the measurement report, so that the network device can obtain this information.

[0227] Optionally, the measurement report may include information for indicating the measurement value of the i-th cell when the i-th cell is in the reporting state (this information can be denoted as "seventh indication information" here).

[0228] In this way, the terminal device can report the measurement value of the i-th cell when the i-th cell is in the reporting state to the network device through the measurement report, so that the network device can obtain this information.

[0229] The following takes the measurement report being carried by MAC CE as an example to illustrate various types of information carried by the measurement report.

[0230] For example, as Figure 6 shown, the MAC CE triggered by the terminal device for measurement reporting is identified by a MAC sub-header, and its LCID is a specific value. Among them, the MAC CE may include the following fields:

[0231] BWP ID field: This field can be used to indicate the BWP applicable to this MAC CE, and the length of this field is 2 bits;

[0232] Report ID field: This field can be used to indicate the identity of the measurement report, and the length of this field is 2 bits;

[0233] E / L field: This field can be used to indicate whether the measurement report meets the entry condition or the exit condition of condition or event A3;

[0234] R field: This field indicates reservation;

[0235] S i field: This field can be used to indicate the reporting or non-reporting status of the i-th (i = 0, 1,..., M - 1) cell, and the length of this field is 1 bit; when S i is 1, it means the i-th cell is in the reporting state; when S i is 0, it means the i-th cell is in the non-reporting state;

[0236] RSRP / SINR field: This field can be used to indicate the measurement value (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI) of the i-th cell when the i-th cell is in the reporting state. This field corresponds to the S i field, and the length of this field is 7 bits.

[0237] Of course, Figure 6 This is only an example description of the structure of the MAC CE, and this embodiment does not limit the structure of the MAC CE.

[0238] "Mode 3"

[0239] In "Mode 3", this embodiment needs to indicate the reporting or non-reporting status of each beam of each cell. The following is an example description.

[0240] Optionally, the measurement report may include information (which can be denoted as "sixth indication information" here) for indicating the reporting or non-reporting status of the j-th beam of the i-th cell. For example, taking this information as 1 bit, if the bit value of this information is 1, then the j-th beam of the i-th cell is in the reporting state; if the bit value of this information is 0, then the j-th beam of the i-th cell is in the non-reporting state. Conversely, if the bit value of this information is 0, then the j-th beam of the i-th cell is in the reporting state; if the bit value of this information is 1, then the j-th beam of the i-th cell is in the non-reporting state.

[0241] Among them, i = 0, 1,..., M - 1, i represents the cell index, M represents the maximum number of cells; j = 0, 1,..., L - 1, j represents the beam index, L represents the maximum number of beams of the cell; the j-th beam being in the reporting state means that the j-th beam meets the condition or event A3, and the j-th beam being in the non-reporting state means that the j-th beam does not meet the condition or event A3.

[0242] It should be noted that whether it is a non-servable cell or a candidate cell, the network can configure one or more beams of these cells, and these cells have a maximum number of beams. In "Mode 3", this embodiment can indicate the reporting or non-reporting status of each beam of each cell. In this way, the terminal device can report the reporting or non-reporting status of each beam of each cell to the network device through a measurement report, so that the network device can obtain this information.

[0243] Optionally, the measurement report may include information for indicating the measurement value of the j-th beam when the j-th beam is in the reporting state (this information can be denoted as "the eighth indication information" here).

[0244] In this way, the terminal device can report the measurement value of the j-th beam when the j-th beam is in the reporting state to the network device through a measurement report, so that the network device can obtain this information.

[0245] Taking the measurement report carried by the MAC CE as an example, various types of information carried by the measurement report will be illustrated below.

[0246] For example, as Figure 7 shown, the MAC CE triggering the measurement report is identified by a MAC sub-header, and its LCID is a specific value. Among them, the MAC CE may include the following fields:

[0247] BWP ID field: This field can be used to indicate the BWP applicable to this MAC CE, and the length of this field is 2 bits;

[0248] Report ID field: This field can be used to indicate the identifier of this measurement report, and the length of this field is 2 bits;

[0249] E / L field: This field can be used to indicate whether this measurement report meets the condition or the entry condition or exit condition of event A3;

[0250] R field: This field represents reserved;

[0251] L i,j field: This field can be used to indicate the reporting or non-reporting status of the j-th (j = 0, 1,..., L - 1) beam of the i-th (i = 0, 1,..., M - 1) cell, and the length of this field is 1 bit; when L i,j is 1, it means that the j-th beam of the i-th cell is in the reporting state; when L i,j is 0, it means that the j-th beam of the i-th cell is in the non-reporting state;

[0252] RSRP / SINR field: This field can be used to indicate the measurement value of the j-th beam when the j-th beam is being reported (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI), and this field corresponds to the L i,j field, and the length of this field is 7 bits.

[0253] Of course, Figure 7 This is only an example illustration of the structure of the MAC CE, and this embodiment does not limit the structure of the MAC CE.

[0254] "Mode 4"

[0255] In "Mode 4", this embodiment needs to indicate the reporting or non-reporting status of all beams. The following is an example illustration.

[0256] Optionally, the measurement report may include information for indicating the reporting or non-reporting status of the k-th beam (this information can be denoted as "the sixth indication information"). For example, taking this information as 1 bit, if the bit value of this information is 1, then the k-th beam is in the reporting state; if the bit value of this information is 0, then the k-th beam is in the non-reporting state. Conversely, if the bit value of this information is 0, then the k-th beam is in the reporting state; if the bit value of this information is 1, then the k-th beam is in the non-reporting state.

[0257] Where k = 0, 1,..., M*L - 1, k represents the beam index, M represents the maximum number of cells, L represents the maximum number of beams of a cell; the k-th beam being in the reporting state means that the k-th beam meets the condition or event A3, and the k-th beam being in the non-reporting state means that the k-th beam does not meet the condition or event A3.

[0258] It should be noted that in "Mode 4", this embodiment can indicate the reporting or non-reporting status of each beam. In this way, the terminal device can report the reporting or non-reporting status of each beam to the network device through the measurement report, so that the network device can obtain this information.

[0259] Optionally, the measurement report may include information for indicating the measurement value of the k-th beam when the k-th beam is in the reporting state (this information can be denoted as "the eighth indication information").

[0260] In this way, the terminal device can report the measurement value of the k-th beam when the k-th beam is in the reporting state to the network device through the measurement report, so that the network device can obtain this information.

[0261] The following takes the measurement report being carried by the MAC CE as an example to illustrate the various types of information carried by the measurement report.

[0262] For example, such asFigure 8 As shown, the MAC CE triggered by the terminal device for measurement reporting is identified by a MAC sub-header, and its LCID is a specific value. Among them, the MAC CE may include the following fields:

[0263] BWP ID field: This field can be used to indicate the BWP applicable to this MAC CE, and the length of this field is 2 bits;

[0264] Report ID field: This field can be used to indicate the identifier of this measurement report, and the length of this field is 2 bits;

[0265] E / L field: This field can be used to indicate whether this measurement report meets the entry condition or the exit condition of condition or event A3;

[0266] R field: This field indicates reservation;

[0267] M k field: This field can be used to indicate whether the kth (k = 0, 1,..., M*L - 1) beam is in the reporting or non-reporting state, and the length of this field is 1 bit; when M k is 1, it means the kth beam is in the reporting state; when M k is 0, it means the kth beam is in the non-reporting state;

[0268] RSRP / SINR field: This field can be used to indicate the measurement value of the kth beam when the kth beam is in the reporting state (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI), this field corresponds to the M k field, and the length of this field is 7 bits.

[0269] Of course, Figure 8 This is only an example description of the structure of the MAC CE, and this embodiment does not limit the structure of the MAC CE.

[0270]

Condition or Event A4

[0271] Condition or event A4 can indicate that the measurement value of the candidate cell is greater than the preset threshold TH_A4 (here, TH_A4 can be denoted as the "third preset threshold"). Among them, TH_A4 can be network-configured, pre-configured, or protocol-specified.

[0272] In this way, when the measurement value of the candidate cell is greater than TH_A4 (i.e., condition or event A4 is satisfied), this indicates that the entry condition of condition or event A4 is met, and the terminal device sends a measurement report to the network device. When the measurement value of the candidate cell is less than or equal to TH_A4 (i.e., condition or event A4 is not satisfied), this indicates that the exit condition of condition or event A4 is met, and the terminal device does not send a measurement report to the network device.

[0273] It should be noted that, similar to the above-mentioned "condition or event A3", the measurement report may include various types of information.

[0274] Optionally, the measurement report may include at least one of the following pieces of information: information for indicating the BWP applicable to the MAC CE carrying the measurement report, information for indicating the identifier of the measurement report, and information for indicating the entry condition or exit condition for the measurement report to satisfy condition or event A4.

[0275] Optionally, the measurement report may include at least one of the following pieces of information: information for indicating the measurement resources (such as CSI-RS or SSB) required to be reported by the serving cell or the beams required to be reported by the serving cell, information for indicating the measurement values of the measurement resources (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI) required to be reported by the serving cell or the measurement values of the beams required to be reported by the serving cell, information for indicating the measurement resources (such as CSI-RS or SSB) required to be reported by the candidate cell or the beams required to be reported by the candidate cell, and information for indicating the measurement values of the measurement resources (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI) required to be reported by the candidate cell or the measurement values of the beams required to be reported by the candidate cell.

[0276] Optionally, the measurement report may include at least one of the following pieces of information: information for indicating the state of the i-th cell being reported or not reported, and information for indicating the measurement value of the i-th cell when the i-th cell is being reported.

[0277] Optionally, the measurement report may include at least one of the following pieces of information: information for indicating the state of the j-th beam of the i-th cell being reported or not reported, and information for indicating the measurement value of the j-th beam when the j-th beam is being reported.

[0278] Optionally, the measurement report may include at least one of the following pieces of information: information for indicating the state of the k-th beam being reported or not reported, and information for indicating the measurement value of the k-th beam when the k-th beam is being reported.

[0279]

Condition or event A5

[0280] Condition or event A5 may indicate that the measurement value of the serving cell is less than a preset threshold TH_A5_1 (here, TH_A5_1 can be denoted as "the fourth preset threshold"), and the measurement value of the candidate cell is greater than a preset threshold TH_A5_2 (here, TH_A5_2 can be denoted as "the fifth preset threshold"). Among them, TH_A5_1 and TH_A5_2 may be network-configured, pre-configured, or specified by the protocol.

[0281] In this way, when the measurement value of the serving cell is less than TH_A5_1 and the measurement value of the candidate cell is greater than TH_A5_2 (i.e., the condition or event A5 is satisfied), it indicates that the entry condition of the condition or event A5 is met, and the terminal device sends a measurement report to the network device. When the measurement value of the serving cell is greater than or equal to TH_A5_1 and / or the measurement value of the candidate cell is less than or equal to TH_A5_2 (i.e., the condition or event A5 is not satisfied), it indicates that the departure condition of the condition or event A5 is met, and the terminal device does not send a measurement report to the network device.

[0282] It should be noted that, similar to the above-mentioned "condition or event A3", the measurement report may include various types of information.

[0283] Optionally, the measurement report may include at least one of the following pieces of information: information for indicating the BWP applicable to the MAC CE carrying the measurement report, information for indicating the identifier of the measurement report, and information for indicating that the measurement report meets the entry condition or the departure condition of the condition or event A5.

[0284] Optionally, the measurement report may include at least one of the following pieces of information: information for indicating the measurement resource (such as CSI-RS or SSB) required to be reported by the serving cell or the beam required to be reported by the serving cell, information for indicating the measurement value of the measurement resource required to be reported by the serving cell (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI) or the measurement value of the beam required to be reported by the serving cell, information for indicating the measurement resource (such as CSI-RS or SSB) required to be reported by the candidate cell or the beam required to be reported by the candidate cell, and information for indicating the measurement value of the measurement resource required to be reported by the candidate cell (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI) or the measurement value of the beam required to be reported by the candidate cell.

[0285] Optionally, the measurement report may include at least one of the following pieces of information: information for indicating the state of the i-th cell being reported or not reported, and information for indicating the measurement value of the i-th cell when the i-th cell is being reported.

[0286] Optionally, the measurement report may include at least one of the following pieces of information: information for indicating the state of the j-th beam of the i-th cell being reported or not reported, and information for indicating the measurement value of the j-th beam when the j-th beam is being reported.

[0287] Optionally, the measurement report may include at least one of the following pieces of information: information for indicating the state of the k-th beam being reported or not reported, and information for indicating the measurement value of the k-th beam when the k-th beam is being reported.

[0288]

Condition or Event A6

[0289] Condition or event A6 can indicate that the measurement value of the serving cell is greater than a preset threshold TH_A6_1 (TH_A6_1 here can be denoted as the "sixth preset threshold"), and the measurement value of the candidate cell is less than a preset threshold TH_A6_2 (TH_A6_2 here can be denoted as the "seventh preset threshold"). Among them, TH_A6_1 and TH_A6_2 can be network-configured, pre-configured, or specified by the protocol.

[0290] In this way, when the measurement value of the serving cell is greater than TH_A6_1 and the measurement value of the candidate cell is less than TH_A6_2 (i.e., condition or event A6 is satisfied), it indicates that the entry condition of condition or event A6 is met, and the terminal device sends a measurement report to the network device. When the measurement value of the serving cell is less than or equal to TH_A6_1 and / or the measurement value of the candidate cell is greater than or equal to TH_A6_2 (i.e., condition or event A6 is not satisfied), it indicates that the departure condition of condition or event A6 is met, and the terminal device does not send a measurement report to the network device.

[0291] It should be noted that similar to the above "condition or event A3", the measurement report can include various types of information.

[0292] Optionally, the measurement report can include at least one of the following information: information indicating the BWP applicable to the MAC CE carrying the measurement report, information indicating the identifier of the measurement report, and information indicating that the measurement report meets the entry condition or departure condition of condition or event A6.

[0293] Optionally, the measurement report can include at least one of the following information: information indicating the measurement resource (such as CSI-RS or SSB) required to be reported by the serving cell or the beam required to be reported by the serving cell, information indicating the measurement value (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI) of the measurement resource required to be reported by the serving cell or the measurement value of the beam required to be reported by the serving cell, information indicating the measurement resource (such as CSI-RS or SSB) required to be reported by the candidate cell or the beam required to be reported by the candidate cell, and information indicating the measurement value (such as L1-RSRP, L1-RSRQ, L1-SINR, or L1-RSSI) of the measurement resource required to be reported by the candidate cell or the measurement value of the beam required to be reported by the candidate cell.

[0294] Optionally, the measurement report can include at least one of the following information: information indicating the state of the i-th cell being reported or not reported, and information indicating the measurement value of the i-th cell when the i-th cell is being reported.

[0295] Optionally, the measurement report may include at least one of the following pieces of information: information for indicating whether the j-th beam of the i-th cell is in a reported or unreported state, and information for indicating the measurement value of the j-th beam when the j-th beam is reported.

[0296] Optionally, the measurement report may include at least one of the following pieces of information: information for indicating whether the k-th beam is in a reported or unreported state, and information for indicating the measurement value of the k-th beam when the k-th beam is reported.

[0297]

Network Configuration for the Terminal Device to Trigger Measurement Reporting

[0298] Combined with the above, in this embodiment, it is necessary to perform network configuration for the terminal device to trigger measurement reporting. Specifically, the network device may configure the conditions or events for the terminal device to trigger measurement reporting through high-layer signaling (such as RRC signaling) or DCI.

[0299] Next, taking the interaction between the terminal device and the network device as an example, an example description of "network configuration for the terminal device to trigger measurement reporting" is given.

[0300] As Figure 9 shown, Figure 9 is a schematic flowchart of another communication method according to an embodiment of the present application. Among them, the method includes the following steps:

[0301] S910. The network device sends reporting configuration information, and the reporting configuration information is used to configure the conditions or events for the terminal device to trigger measurement reporting.

[0302] Correspondingly, the terminal device receives the reporting configuration information.

[0303] It can be seen that in this embodiment, the network configures the terminal device to trigger measurement reporting through the reporting configuration information.

[0304] Optionally, the conditions or events configured by the reporting configuration information include at least one of the following:

[0305] The measurement value of the serving cell is greater than a first preset threshold;

[0306] The measurement value of the serving cell is less than a second preset threshold;

[0307] The measurement value of the candidate cell is higher than the measurement value of the serving cell by a preset offset;

[0308] The measurement value of the candidate cell is greater than a third preset threshold;

[0309] The measurement value of the serving cell is less than a fourth preset threshold, and the measurement value of the candidate cell is greater than a fifth preset threshold; or,

[0310] The measurement value of the serving cell is greater than the sixth preset threshold, and the measurement value of the candidate cell is less than the seventh preset threshold.

[0311] Optionally, the preset offset corresponds one-to-one with the candidate cell, or the preset offset corresponds one-to-one with the beam or measurement resource of the candidate cell, or the preset offset corresponds one-to-one with the beam group or measurement resource group of the candidate cell.

[0312] 4. Example description of measurement reporting based on Layer 1 or Layer 2

[0313] Combined with the above content, this embodiment needs to perform network configuration for measurement reporting based on Layer 1 or Layer 2. Specifically, when implemented, the network device can configure measurement reporting based on Layer 1 or Layer 2 for the terminal device through high-layer signaling (such as RRC signaling) or DCI. Additionally, the terminal device can report a measurement report based on the configuration of measurement reporting based on Layer 1 or Layer 2.

[0314] Next, taking the interaction between the terminal device and the network device as an example, the above content will be described by way of example. As Figure 10 shown, Figure 10 is a schematic flowchart of another communication method according to an embodiment of the present application. Among them, the method includes the following steps:

[0315] S1010. The network device sends configuration information, and the configuration information is used to configure measurement reporting based on Layer 1 or Layer 2.

[0316] Correspondingly, the terminal device receives the configuration information.

[0317] S1020. If the conditions or events for the terminal device to trigger measurement reporting are met, the terminal device sends a measurement report according to the configuration information.

[0318] Correspondingly, the network device receives the measurement report.

[0319] It can be seen that in this embodiment, the network configures measurement reporting based on Layer 1 or Layer 2 through the configuration information, so as to perform Layer 1 measurement and trigger measurement reporting by the terminal device based on measurement reporting based on Layer 1 or Layer 2. In this way, Layer 1 measurement is beneficial to reducing the latency in the entire mobility management and minimizing the service interruption time as much as possible. At the same time, by triggering measurement reporting by the terminal device, it is possible to avoid sending signaling and additional configuration of resources required for reporting, thereby being beneficial to reducing resource and signaling overhead.

[0320] Optionally, the configuration information includes measurement configuration information and / or reporting configuration information;

[0321] The measurement configuration information is used to configure mobility LTM measurement or channel state information CSI measurement triggered based on Layer 1 or Layer 2;

[0322] Report configuration information is used to configure the conditions or events for the terminal device to trigger measurement reports.

[0323] Optionally, the measurement configuration information includes at least one of time domain information, type information, or location information;

[0324] The time domain information is used to configure the time domain behavior of the measurement resources, and the measurement resources include LTM measurement resources or CSI measurement resources;

[0325] The type information is used to configure the type of the measurement resources;

[0326] The location information is used to configure the time-frequency domain location of the measurement resources.

[0327] Optionally, the conditions or events configured by the report configuration information include at least one of the following:

[0328] The measurement value of the serving cell is greater than the first preset threshold;

[0329] The measurement value of the serving cell is less than the second preset threshold;

[0330] The measurement value of the candidate cell is higher than the measurement value of the serving cell by a preset offset;

[0331] The measurement value of the candidate cell is greater than the third preset threshold;

[0332] The measurement value of the serving cell is less than the fourth preset threshold, and the measurement value of the candidate cell is greater than the fifth preset threshold; or,

[0333] The measurement value of the serving cell is greater than the sixth preset threshold, and the measurement value of the candidate cell is less than the seventh preset threshold.

[0334] Optionally, the preset offset corresponds to each candidate cell, or the preset offset corresponds to the beam or measurement resource of the candidate cell, or the preset offset corresponds to the beam group or measurement resource group of the candidate cell.

[0335] Optionally, the measurement report includes the first indication information and / or the second indication information;

[0336] The first indication information is used to indicate the measurement resources required to be reported by the serving cell, or to indicate the beam required to be reported by the serving cell;

[0337] The second indication information is used to indicate the measurement value of the measurement resources required to be reported by the serving cell, or to indicate the measurement value of the beam required to be reported by the serving cell.

[0338] Optionally, the measurement resources required to be reported by the serving cell include one of the following:

[0339] All measurement resources of the serving cell, at least one measurement resource among all measurement resources of the serving cell that meets the conditions or events for the terminal device to trigger measurement reporting, or the measurement resource corresponding to the maximum value among all measurement values of all measurement resources of the serving cell;

[0340] The beam to be reported for the serving cell includes one of the following:

[0341] All beams of the serving cell, at least one beam among all beams of the serving cell that meets the conditions or events for the terminal device to trigger measurement reporting, or the beam corresponding to the maximum value among all measurement values of all beams of the serving cell.

[0342] Optionally, the measurement report includes third indication information and / or fourth indication information;

[0343] The third indication information is used to indicate the measurement resources to be reported for the candidate cell, or to indicate the beam to be reported for the candidate cell;

[0344] The fourth indication information is used to indicate the measurement value of the measurement resources to be reported for the candidate cell, or to indicate the measurement value of the beam to be reported for the candidate cell.

[0345] Optionally, the measurement resources to be reported for the candidate cell include one of the following:

[0346] All measurement resources of the candidate cell, at least one measurement resource among all measurement resources of the candidate cell that meets the conditions or events for the terminal device to trigger measurement reporting, or the measurement resource corresponding to the maximum value among all measurement values of all measurement resources of the candidate cell;

[0347] The beam to be reported for the candidate cell includes one of the following:

[0348] All beams of the candidate cell, at least one beam among all beams of the candidate cell that meets the conditions or events for the terminal device to trigger measurement reporting, or the beam corresponding to the maximum value among all measurement values of all beams of the candidate cell.

[0349] Optionally, the measurement report includes fifth indication information and / or sixth indication information;

[0350] The fifth indication information is used to indicate whether the i-th cell is in the reporting or non-reporting state, where i = 0, 1,..., M - 1, i represents the cell index, and M represents the maximum number of cells;

[0351] The sixth indication information is used to indicate that the j-th beam of the i-th cell is in a reporting or non-reporting state, or to indicate that the k-th beam is in a reporting or non-reporting state, where j = 0, 1, …, L - 1, j represents the beam index, L represents the maximum number of beams in the cell, and k = 0, 1, …, M * L - 1, k represents the beam index;

[0352] The i-th cell being in the reporting state means that the i-th cell meets the conditions or events for the terminal device to trigger measurement reporting, and the i-th cell being in the non-reporting state means that the i-th cell does not meet the conditions or events for the terminal device to trigger measurement reporting;

[0353] The j-th beam being in the reporting state means that the j-th beam meets the conditions or events for the terminal device to trigger measurement reporting, and the j-th beam being in the non-reporting state means that the j-th beam does not meet the conditions or events for the terminal device to trigger measurement reporting;

[0354] The k-th beam being in the reporting state means that the k-th beam meets the conditions or events for the terminal device to trigger measurement reporting, and the k-th beam being in the non-reporting state means that the k-th beam does not meet the conditions or events for the terminal device to trigger measurement reporting.

[0355] Optionally, the measurement report further includes seventh measurement value indication information and / or eighth measurement value indication information;

[0356] The seventh indication information is used to indicate the measurement value of the i-th cell when the i-th cell is in the reporting state;

[0357] The eighth indication information is used to indicate the measurement value of the j-th beam when the j-th beam is in the reporting state, or to indicate the measurement value of the k-th beam when the k-th beam is in the reporting state.

[0358] Optionally, the measurement report further includes at least one of the following:

[0359] The ninth indication information is used to indicate the bandwidth part BWP applicable to the media access control - control element MAC CE carrying the measurement report;

[0360] The tenth indication information is used to indicate the identifier of the measurement report;

[0361] The eleventh indication information is used to indicate the maximum number of cells and / or the maximum number of beams per cell; or,

[0362] The twelfth indication information is used to indicate the entry condition or departure condition for the measurement report to meet the conditions or events for the terminal device to trigger measurement reporting.

[0363] Optionally, the measurement report is carried by the MAC CE.

[0364] III. Example description of a communication device

[0365]

Description

[0366] The above mainly introduces the solution of the embodiment of the present application from the perspective of the method side. It can be understood that in order for the terminal device to implement the above functions, it includes the corresponding hardware structure and / or software module for executing each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0367] The embodiment of the present application can divide the functional units of the terminal device according to the above method examples. For example, each functional unit can be divided corresponding to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of units in the embodiment of the present application is illustrative, only a logical function division, and there may be other division methods in actual implementation.

[0368] In the case of adopting an integrated unit, Figure 11 is a block diagram of the functional unit composition of a communication device according to an embodiment of the present application. Among them, the communication device 1100 includes a receiving unit 1101 and a transmitting unit 1102.

[0369] Optionally, the receiving unit 1101 can be a module unit for receiving and processing signals, information, etc., and no specific limitation is made thereto.

[0370] Optionally, the transmitting unit 1102 can be a module unit for transmitting and processing signals, information, etc., and no specific limitation is made thereto.

[0371] Optionally, the communication device 1100 may further include a storage unit for storing the computer program code or instructions executed by the communication device 1100. Among them, the storage unit can be a memory.

[0372] Optionally, the communication device 1100 can be a chip or a chip module.

[0373] Optionally, the receiving unit 1101 and the transmitting unit 1102 can be integrated into a communication unit.

[0374] Optionally, the receiving unit 1101 and the transmitting unit 1102 can be integrated into a processing unit.

[0375] It should be noted that the communication unit can be a communication interface, transceiver, transceiver circuit, etc.

[0376] The processing unit can be a processor or a controller. For example, it can be a baseband processor, baseband chip, central processing unit (CPU), general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logic blocks, modules, and circuits described in connection with the disclosure of the present application. The processing unit can also be a combination that implements computing functions, such as a combination including one or more microprocessors, a combination of DSP and microprocessors, etc.

[0377] Optionally, the communication device 1100 is used to execute any step performed by a terminal device / chip / chip module, etc. in the above method embodiments.

[0378] In specific implementation, the receiving unit 1101 and the transmitting unit 1102 are used to execute any step in the above method embodiments, and when performing actions such as transmitting, other units can be selectively called to complete the corresponding operations. Details are described below.

[0379] The receiving unit 1101 is used to receive configuration information, and the configuration information is used to configure layer 1 or layer 2-based measurement reporting;

[0380] The transmitting unit 1102 is used to send a measurement report according to the configuration information if the conditions or events for triggering measurement reporting by the terminal device are met.

[0381] It can be seen that in this embodiment, layer 1 or layer 2-based measurement reporting is configured through configuration information, so as to perform layer 1 measurement and terminal device-triggered measurement reporting based on layer 1 or layer 2-based measurement reporting. Since layer 1 measurement takes less time than layer 3 measurement and does not require layer 3 filtering, it is beneficial to reduce the latency in the entire mobility management and minimize the service interruption time as much as possible.

[0382] In addition, the triggering of measurement reporting by the terminal device means that when the measurement result meets the reporting conditions or events, the terminal device actively reports the measurement result to the network device. Different from the triggering of measurement reporting by the network device, since the triggering of measurement reporting by the network device means that the network device triggers the terminal device to report the measurement result through signaling, and the network device needs to send the signaling for triggering the reporting and configure the resources required for reporting. However, the triggering of measurement reporting by the terminal device can be done without sending signaling and without additional configuration of the resources required for reporting, which helps to reduce signaling and resource overhead.

[0383] It should be noted that Figure 11 The specific implementation of each operation in the above embodiments can be found in the description of the method embodiments shown above, and will not be specifically elaborated here.

[0384]

Some possible implementation manners

[0385] Optionally, the configuration information includes measurement configuration information and / or reporting configuration information;

[0386] The measurement configuration information is used to configure the LTM measurement or the channel state information (CSI) measurement;

[0387] The reporting configuration information is used to configure the conditions or events for the terminal device to trigger measurement reporting.

[0388] Optionally, the measurement configuration information includes at least one of time domain information, type information, or location information;

[0389] The time domain information is used to configure the time domain behavior of the measurement resources, and the measurement resources include LTM measurement resources or CSI measurement resources;

[0390] The type information is used to configure the type of the measurement resources;

[0391] The location information is used to configure the time-frequency domain location of the measurement resources.

[0392] Optionally, the conditions or events configured by the reporting configuration information include at least one of the following:

[0393] The measurement value of the serving cell is greater than the first preset threshold;

[0394] The measurement value of the serving cell is less than the second preset threshold;

[0395] The measurement value of the candidate cell is higher than the measurement value of the serving cell by a preset offset;

[0396] The measurement value of the candidate cell is greater than the third preset threshold;

[0397] The measurement value of the serving cell is less than the fourth preset threshold, and the measurement value of the candidate cell is greater than the fifth preset threshold; or,

[0398] The measurement value of the serving cell is greater than the sixth preset threshold, and the measurement value of the candidate cell is less than the seventh preset threshold.

[0399] Optionally, the preset offset corresponds to each candidate cell, or the preset offset corresponds to the beam or measurement resource of the candidate cell, or the preset offset corresponds to the beam group or measurement resource group of the candidate cell.

[0400] Optionally, the measurement report includes first indication information and / or second indication information;

[0401] The first indication information is used to indicate the measurement resource required to be reported by the serving cell, or to indicate the beam required to be reported by the serving cell.

[0402] The second indication information is used to indicate the measurement value of the measurement resource required to be reported by the serving cell, or to indicate the measurement value of the beam required to be reported by the serving cell.

[0403] Optionally, the measurement resource required to be reported by the serving cell includes one of the following:

[0404] All measurement resources of the serving cell, at least one measurement resource among all measurement resources of the serving cell that satisfies the conditions or events for triggering measurement reporting by the terminal device, or the measurement resource corresponding to the maximum value among all measurement values of all measurement resources of the serving cell;

[0405] The beam required to be reported by the serving cell includes one of the following:

[0406] All beams of the serving cell, at least one beam among all beams of the serving cell that satisfies the conditions or events for triggering measurement reporting by the terminal device, or the beam corresponding to the maximum value among all measurement values of all beams of the serving cell.

[0407] Optionally, the measurement report includes third indication information and / or fourth indication information;

[0408] The third indication information is used to indicate the measurement resource required to be reported by the candidate cell, or to indicate the beam required to be reported by the candidate cell.

[0409] The fourth indication information is used to indicate the measurement value of the measurement resource required to be reported by the candidate cell, or to indicate the measurement value of the beam required to be reported by the candidate cell.

[0410] Optionally, the measurement resource required to be reported by the candidate cell includes one of the following:

[0411] All measurement resources of the candidate cell, at least one measurement resource among all measurement resources of the candidate cell that meets the conditions or events for the terminal device to trigger measurement reporting, or the measurement resource corresponding to the maximum value among all measurement values of all measurement resources of the candidate cell;

[0412] The beams required to be reported by the candidate cell include one of the following:

[0413] All beams of the candidate cell, at least one beam among all beams of the candidate cell that meets the conditions or events for the terminal device to trigger measurement reporting, or the beam corresponding to the maximum value among all measurement values of all beams of the candidate cell.

[0414] Optionally, the measurement report includes fifth indication information and / or sixth indication information;

[0415] The fifth indication information is used to indicate that the i-th cell is in the reporting or non-reporting state, where i = 0, 1, …, M - 1, i represents the cell index, and M represents the maximum number of cells;

[0416] The sixth indication information is used to indicate that the j-th beam of the i-th cell is in the reporting or non-reporting state, or is used to indicate that the k-th beam is in the reporting or non-reporting state, where j = 0, 1, …, L - 1, j represents the beam index, L represents the maximum number of beams of the cell, and k = 0, 1, …, M * L - 1, k represents the beam index;

[0417] That the i-th cell is in the reporting state means that the i-th cell meets the conditions or events for the terminal device to trigger measurement reporting, and that the i-th cell is in the non-reporting state means that the i-th cell does not meet the conditions or events for the terminal device to trigger measurement reporting;

[0418] That the j-th beam is in the reporting state means that the j-th beam meets the conditions or events for the terminal device to trigger measurement reporting, and that the j-th beam is in the non-reporting state means that the j-th beam does not meet the conditions or events for the terminal device to trigger measurement reporting;

[0419] That the k-th beam is in the reporting state means that the k-th beam meets the conditions or events for the terminal device to trigger measurement reporting, and that the k-th beam is in the non-reporting state means that the k-th beam does not meet the conditions or events for the terminal device to trigger measurement reporting.

[0420] Optionally, the measurement report further includes seventh measurement value indication information and / or eighth measurement value indication information;

[0421] The seventh indication information is used to indicate the measurement value of the i-th cell when the i-th cell is in the reporting state;

[0422] The eighth indication information is used to indicate the measurement value of the j-th beam when the j-th beam is in the reporting state, or is used to indicate the measurement value of the k-th beam when the k-th beam is in the reporting state.

[0423] Optionally, the measurement report further includes at least one of the following:

[0424] A ninth indication message for indicating a bandwidth part BWP applicable to the MAC CE carrying the measurement report;

[0425] A tenth indication message for indicating an identifier of the measurement report;

[0426] An eleventh indication message for indicating a maximum number of cells and / or a maximum number of beams for each cell; or,

[0427] A twelfth indication message for indicating a condition for entering or leaving a condition for the measurement report to meet the condition for the terminal device to trigger measurement reporting.

[0428] Optionally, the measurement report is carried by a MAC CE.

[0429] IV. Another example description of a communication device

[0430] [Description]

[0431] The above mainly introduces the solution of the embodiment of the present application from the perspective of the method side. It can be understood that in order for the network device to implement the above functions, it includes the corresponding hardware structure and / or software module for executing each function. Those skilled in the art should easily realize that, combining the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0432] The embodiment of the present application can divide the network device into functional units according to the above method examples. For example, each functional unit can be divided corresponding to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of units in the embodiment of the present application is illustrative, only a logical function division, and there may be other division methods in actual implementation.

[0433] In the case of adopting an integrated unit, Figure 12 is a block diagram of the functional unit composition of another communication device according to the embodiment of the present application. Among them, the communication device 1200 includes a sending unit 1201 and a receiving unit 1202.

[0434] Optionally, the sending unit 1201 may be a module unit for performing operations such as sending signals, information, etc., and no specific limitation is imposed thereon.

[0435] Optionally, the receiving unit 1202 may be a module unit for performing receiving operations on signals, information, etc., and no specific limitation is imposed thereon.

[0436] Optionally, the communication device 1200 may further include a storage unit for storing the computer program code or instructions executed by the communication device 1200. Among them, the storage unit may be a memory.

[0437] Optionally, the communication device 1200 may be a chip or a chip module.

[0438] Optionally, the sending unit 1201 and the receiving unit 1202 may be integrated in a communication unit. Among them, the communication unit may be a communication interface, a transceiver, a transceiver circuit, etc.

[0439] Optionally, the sending unit 1201 and the receiving unit 1202 may be integrated in a processing unit.

[0440] It should be noted that the processing unit may be a processor or a controller. For example, it may be a baseband processor, a baseband chip, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logic blocks, modules, and circuits described in connection with the disclosure of this application. The processing unit may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0441] Optionally, the communication device 1200 is used to execute any step performed by a chip / chip module / network device, etc. in the above method embodiments.

[0442] In specific implementation, the sending unit 1201 and the receiving unit 1202 are used to execute any step in the above method embodiments, and when performing operations such as receiving, other units may be selectively called to complete the corresponding operations. Details are described below.

[0443] A transmitting unit 1201, configured to transmit configuration information for configuring layer 1 or layer 2 based measurement reporting.

[0444] A receiving unit 1202, configured to receive a measurement report if a condition or event for triggering measurement reporting by the terminal device is satisfied.

[0445] It can be seen that in this embodiment, network configuration of layer 1 or layer 2 based measurement reporting is implemented through configuration information, so as to perform layer 1 measurement and trigger measurement reporting by the terminal device based on layer 1 or layer 2 based measurement reporting. Since layer 1 measurement takes less time than layer 3 measurement and does not require layer 3 filtering, it is beneficial to reduce the latency in the entire mobility management and minimize the service interruption time as much as possible.

[0446] In addition, triggering measurement reporting by the terminal device means that the terminal device actively reports the measurement result to the network device when the measurement result meets the reporting condition or event. Different from the network device triggering measurement reporting, which means that the network device triggers the terminal device to report the measurement result through signaling, and the network device triggering measurement reporting requires sending signaling for triggering the reporting and configuring the resources required for reporting. However, triggering measurement reporting by the terminal device can avoid sending signaling and additional configuration of the resources required for reporting, which is beneficial to reducing signaling and resource overhead.

[0447] It should be noted that Figure 12 The specific implementation of each operation in the above embodiment can be found in the description of the method embodiment shown above, and will not be elaborated here.

[0448]

Some possible implementation manners

[0449] Optionally, the configuration information includes measurement configuration information and / or reporting configuration information;

[0450] The measurement configuration information is used to configure LTM measurement or channel state information (CSI) measurement;

[0451] The reporting configuration information is used to configure the conditions or events for triggering measurement reporting by the terminal device.

[0452] Optionally, the measurement configuration information includes at least one of time domain information, type information, or location information;

[0453] The time domain information is used to configure the time domain behavior of the measurement resources, where the measurement resources include LTM measurement resources or CSI measurement resources;

[0454] The type information is used to configure the type of the measurement resources;

[0455] The location information is used to configure the time-frequency domain location of the measurement resources.

[0456] Optionally, the conditions or events configured for reporting configuration information include at least one of the following:

[0457] The measurement value of the serving cell is greater than a first preset threshold;

[0458] The measurement value of the serving cell is less than a second preset threshold;

[0459] The measurement value of a candidate cell is higher than the measurement value of the serving cell by a preset offset;

[0460] The measurement value of a candidate cell is greater than a third preset threshold;

[0461] The measurement value of the serving cell is less than a fourth preset threshold and the measurement value of the candidate cell is greater than a fifth preset threshold; or,

[0462] The measurement value of the serving cell is greater than a sixth preset threshold and the measurement value of the candidate cell is less than a seventh preset threshold.

[0463] Optionally, the preset offset corresponds to each candidate cell, or the preset offset corresponds to the beam or measurement resource of the candidate cell, or the preset offset corresponds to the beam group or measurement resource group of the candidate cell.

[0464] Optionally, the measurement report includes first indication information and / or second indication information;

[0465] The first indication information is used to indicate the measurement resource required to be reported by the serving cell, or to indicate the beam required to be reported by the serving cell;

[0466] The second indication information is used to indicate the measurement value of the measurement resource required to be reported by the serving cell, or to indicate the measurement value of the beam required to be reported by the serving cell.

[0467] Optionally, the measurement resource required to be reported by the serving cell includes one of the following:

[0468] All measurement resources of the serving cell, at least one measurement resource among all measurement resources of the serving cell that satisfies the conditions or events for triggering measurement reporting by the terminal device, or the measurement resource corresponding to the maximum value among all measurement values of all measurement resources of the serving cell;

[0469] The beam required to be reported by the serving cell includes one of the following:

[0470] All beams of the serving cell, at least one beam among all beams of the serving cell that satisfies the conditions or events for triggering measurement reporting by the terminal device, or the beam corresponding to the maximum value among all measurement values of all beams of the serving cell.

[0471] Optionally, the measurement report includes third indication information and / or fourth indication information;

[0472] The third indication information is used to indicate the measurement resources required to be reported by a candidate cell, or to indicate the beams required to be reported by a candidate cell;

[0473] The fourth indication information is used to indicate the measurement values of the measurement resources required to be reported by a candidate cell, or to indicate the measurement values of the beams required to be reported by a candidate cell.

[0474] Optionally, the measurement resources required to be reported by a candidate cell include one of the following:

[0475] All the measurement resources of the candidate cell, at least one of the measurement resources among all the measurement resources of the candidate cell that meet the conditions or events for the terminal device to trigger measurement reporting, or the measurement resources corresponding to the maximum value among all the measurement values of all the measurement resources of the candidate cell;

[0476] The beams required to be reported by a candidate cell include one of the following:

[0477] All the beams of the candidate cell, at least one of the beams among all the beams of the candidate cell that meet the conditions or events for the terminal device to trigger measurement reporting, or the beams corresponding to the maximum value among all the measurement values of all the beams of the candidate cell.

[0478] Optionally, the measurement report includes the fifth indication information and / or the sixth indication information;

[0479] The fifth indication information is used to indicate that the i-th cell is in the reporting or non-reporting state, where i = 0, 1,..., M - 1, i represents the cell index, and M represents the maximum number of cells;

[0480] The sixth indication information is used to indicate that the j-th beam of the i-th cell is in the reporting or non-reporting state, or to indicate that the k-th beam is in the reporting or non-reporting state, where j = 0, 1,..., L - 1, j represents the beam index, L represents the maximum number of beams of a cell, and k = 0, 1,..., M * L - 1, k represents the beam index;

[0481] The i-th cell being in the reporting state means that the i-th cell meets the conditions or events for the terminal device to trigger measurement reporting, and the i-th cell being in the non-reporting state means that the i-th cell does not meet the conditions or events for the terminal device to trigger measurement reporting;

[0482] The j-th beam being in the reporting state means that the j-th beam meets the conditions or events for the terminal device to trigger measurement reporting, and the j-th beam being in the non-reporting state means that the j-th beam does not meet the conditions or events for the terminal device to trigger measurement reporting;

[0483] The k-th beam being in the reporting state means that the k-th beam meets the conditions or events for the terminal device to trigger measurement reporting, and the k-th beam not being in the reporting state means that the k-th beam does not meet the conditions or events for the terminal device to trigger measurement reporting.

[0484] Optionally, the measurement report further includes seventh measurement value indication information and / or eighth measurement value indication information;

[0485] The seventh indication information is used to indicate the measurement value of the i-th cell when the i-th cell is in the reporting state;

[0486] The eighth indication information is used to indicate the measurement value of the j-th beam when the j-th beam is in the reporting state, or is used to indicate the measurement value of the k-th beam when the k-th beam is in the reporting state.

[0487] Optionally, the measurement report further includes at least one of the following:

[0488] The ninth indication information is used to indicate the bandwidth part BWP applicable to the MAC CE carrying the measurement report;

[0489] The tenth indication information is used to indicate the identifier of the measurement report;

[0490] The eleventh indication information is used to indicate the maximum number of cells and / or the maximum number of beams per cell; or,

[0491] The twelfth indication information is used to indicate the entry condition or exit condition for the measurement report to meet the conditions or events for the terminal device to trigger measurement reporting.

[0492] Optionally, the measurement report is carried by a MAC CE.

[0493] V. Example description of a terminal device

[0494] Please refer to Figure 13 , Figure 13 which is a schematic structural diagram of a terminal device according to an embodiment of the present application. Among them, the terminal device 1300 may include a processor 1310, a memory 1320, and a communication bus for connecting the processor 1310 and the memory 1320.

[0495] Optionally, the memory 1320 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a compact disc read-only memory (CD-ROM). The memory 1320 is used to store program codes executed by the terminal device 1300 and data transmitted thereby.

[0496] Optionally, the terminal device 1300 further includes a communication interface, which is used to receive and transmit data.

[0497] Optionally, the terminal device 1300 may be the first terminal device described above.

[0498] Optionally, the processor 1310 may be one or more CPUs. When the processor 1310 is a single CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0499] Optionally, the processor 1310 may be a baseband chip, a chip, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof.

[0500] In a specific implementation, the processor 1310 in the terminal device 1300 is used to execute the computer program or instruction 1321 stored in the memory 1320 and perform the following operations:

[0501] Receive configuration information, where the configuration information is used to configure layer 1 or layer 2 measurement reports;

[0502] If the conditions or events for triggering measurement reports by the terminal device are met, send a measurement report according to the configuration information.

[0503] It can be seen that in this embodiment, the network configures layer 1 or layer 2 measurement reports through configuration information, so as to perform layer 1 measurements and trigger measurement reports by the terminal device based on layer 1 or layer 2 measurement reports. Since layer 1 measurements take less time than layer 3 measurements and do not require layer 3 filtering, it is beneficial to reduce the latency in the entire mobility management and minimize the service interruption time as much as possible.

[0504] In addition, the triggering of measurement reporting by the terminal device means that when the measurement result meets the reporting conditions or events, the terminal device actively reports the measurement result to the network device. Different from the triggering of measurement reporting by the network device, since the triggering of measurement reporting by the network device means that the network device triggers the terminal device to report the measurement result through signaling, and the network device needs to send the signaling for triggering the reporting and configure the resources required for reporting. However, the terminal device can trigger measurement reporting without sending signaling and without additional configuration of the resources required for reporting, which helps to reduce the signaling and resource overhead.

[0505] It should be noted that the specific implementation of each operation can adopt the corresponding description of the method embodiments shown above. The terminal device 1300 can be used to execute the method embodiments of the present application, and details thereof will not be elaborated herein.

[0506] VI. Example Illustration of a Network Device

[0507] Please refer to Figure 14 , Figure 14 which is a schematic structural diagram of a network device provided by an embodiment of the present application. Among them, the network device 1400 includes a processor 1410, a memory 1420, and a communication bus for connecting the processor 1410 and the memory 1420.

[0508] Optionally, the memory 1420 includes, but is not limited to, RAM, ROM, EPROM, or CD-ROM, and the memory 1420 is used to store relevant instructions and data.

[0509] Optionally, the network device 1400 further includes a communication interface, which is used to receive and send data.

[0510] Optionally, the processor 1410 can be one or more CPUs. When the processor 1410 is a single CPU, the CPU can be a single-core CPU or a multi-core CPU.

[0511] Optionally, the processor 1410 can be a baseband chip, a chip, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof.

[0512] Optionally, the processor 1410 in the network device 1400 is used to execute the computer program or instruction 1421 stored in the memory 1420 and perform the following operations:

[0513] Send configuration information, where the configuration information is used to configure layer 1 or layer 2-based measurement reporting;

[0514] If the conditions or events for triggering measurement reporting by the terminal device are met, receive the measurement report.

[0515] It can be seen that in this embodiment, the network configuration realizes layer 1 or layer 2 measurement reporting based on the configuration information, so as to perform layer 1 measurement and trigger measurement reporting by the terminal device based on the layer 1 or layer 2 measurement reporting. Since the layer 1 measurement takes less time than the layer 3 measurement and does not require layer 3 filtering, it is beneficial to reduce the latency in the entire mobility management and minimize the service interruption time as much as possible.

[0516] In addition, the terminal device triggering measurement reporting means that when the measurement result meets the reporting condition or event, the terminal device actively reports the measurement result to the network device. Different from the network device triggering measurement reporting, since the network device triggering measurement reporting means that the network device triggers the terminal device to report the measurement result through signaling, and the network device triggering measurement reporting requires sending the signaling for triggering the reporting and configuring the resources required for reporting, but the terminal device triggering measurement reporting can avoid sending signaling and does not require additional configuration of the resources required for reporting, which is beneficial to reducing the signaling and resource overhead.

[0517] It should be noted that the specific implementation of each operation can adopt the corresponding description of the method embodiment shown above. The network device 1400 can be used to execute the method embodiment of the present application above, and details are not described herein again.

[0518] VII. Other related example descriptions

[0519] Optionally, the above method embodiment can be applied to the terminal device or in the terminal device. That is to say, the execution subject of the above method embodiment can be the terminal device, and can be a chip, a chip module or a module, etc., and no specific limitation is made thereto.

[0520] Optionally, the above method embodiment can be applied to the network device or in the network device. That is to say, the execution subject of the above method embodiment can be the network device, and can be a chip, a chip module or a module, etc., and no specific limitation is made thereto.

[0521] The embodiment of the present application also provides a chip, including a processor, a memory, and a computer program or instruction stored on the memory. Wherein, the processor executes the computer program or instruction to implement the steps described in the above method embodiment.

[0522] The embodiment of the present application also provides a chip module, including a transceiver component and a chip. The chip includes a processor, a memory, and a computer program or instruction stored on the memory. Wherein, the processor executes the computer program or instruction to implement the steps described in the above method embodiment.

[0523] An embodiment of the present application also provides a computer-readable storage medium storing a computer program or instruction, and when the computer program or instruction is executed, the steps described in the above method embodiment are implemented.

[0524] An embodiment of the present application also provides a computer program product including a computer program or instruction, and when the computer program or instruction is executed, the steps described in the above method embodiment are implemented.

[0525] An embodiment of the present application also provides a communication system including the above terminal device and the above network device.

[0526] It should be noted that for the above embodiments, for the sake of simple description, they are all expressed as a series of action combinations. Those skilled in the art should know that the present application is not limited by the described action sequence, because some steps in the embodiments of the present application can be performed in other sequences or simultaneously. In addition, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions, steps, modules or units involved are not necessarily essential to the embodiments of the present application.

[0527] In the above embodiments, the descriptions of the embodiments of the present application each have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0528] The steps of the method or algorithm described in the embodiments of the present application can be implemented in a hardware manner or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in a RAM, flash memory, ROM, EPROM, electrically erasable programmable read-only memory (EEPROM), register, hard disk, removable hard disk, compact disc read-only memory (CD-ROM) or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in the terminal device or the management device. Of course, the processor and the storage medium can also exist as discrete components in the terminal device or the management device.

[0529] Those skilled in the art should be able to realize that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired manner (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wirelessly (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that the computer can access or a data storage device such as a server or data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a digital video disc (DVD)), or a semiconductor medium (such as a solid state disk (SSD)), etc.

[0530] Each device and product described in the above embodiments includes various modules / units, which can be software modules / units, hardware modules / units, or can be partly software modules / units and partly hardware modules / units. For example, for each device and product applied to or integrated into a chip, each of the modules / units it includes can be implemented in the form of hardware such as circuits. Or, at least some of the modules / units can be implemented in the form of software programs that run on the processor integrated inside the chip, and the remaining (if any) part of the modules / units can be implemented in the form of hardware such as circuits; for each device and product applied to or integrated into a chip module, each of the modules / units it includes can be implemented in the form of hardware such as circuits. Different modules / units can be located in the same component (such as a chip, a circuit module, etc.) or different components of the chip module. Or, at least some of the modules / units can be implemented in the form of software programs that run on the processor integrated inside the chip module, and the remaining (if any) part of the modules / units can be implemented in the form of hardware such as circuits; for each device and product applied to or integrated into a terminal device, each of the modules / units it includes can be implemented in the form of hardware such as circuits. Different modules / units can be located in the same component (such as a chip, a circuit module, etc.) or different components inside the terminal device. Or, at least some of the modules / units can be implemented in the form of software programs that run on the processor integrated inside the terminal device, and the remaining (if any) part of the modules / units can be implemented in the form of hardware such as circuits.

[0531] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific embodiments of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A communication method, characterized in that, Comprising: Receiving configuration information for configuring layer 1 or layer 2 based measurement reporting; If the conditions or events for triggering measurement reporting by the terminal device are met, sending a measurement report according to the configuration information.

2. The method according to claim 1, wherein The configuration information includes measurement configuration information and / or reporting configuration information; The measurement configuration information is used to configure mobility LTM measurements or channel state information CSI measurements triggered based on layer 1 or layer 2; The reporting configuration information is used to configure the conditions or events for the terminal device to trigger measurement reporting.

3. The method according to claim 2, characterized in that, The measurement configuration information includes at least one of time domain information, type information, or location information; The time domain information is used to configure the time domain behavior of measurement resources, where the measurement resources include LTM measurement resources or CSI measurement resources; The type information is used to configure the type of measurement resources; The location information is used to configure the time-frequency domain location of measurement resources.

4. The method according to claim 2, wherein The conditions or events configured by the reporting configuration information include at least one of the following: The measured value of the serving cell is greater than a first preset threshold; The measured value of the serving cell is less than a second preset threshold; The measured value of a candidate cell is higher than the measured value of the serving cell by a preset offset; The measured value of a candidate cell is greater than a third preset threshold; The measured value of the serving cell is less than a fourth preset threshold, and the measured value of the candidate cell is greater than a fifth preset threshold; Or, The measured value of the serving cell is greater than a sixth preset threshold, and the measured value of the candidate cell is less than a seventh preset threshold.

5. The method according to claim 4, wherein The preset offset corresponds to a candidate cell one by one, or the preset offset corresponds to the beam or measurement resource of a candidate cell one by one, or the preset offset corresponds to the beam group or measurement resource group of a candidate cell one by one.

6. The method according to any one of claims 1-5, characterized in that The measurement report includes first indication information and / or second indication information; The first indication information is used to indicate the measurement resources required to be reported for the serving cell, or is used to indicate the beam required to be reported for the serving cell; The second indication information is used to indicate the measured value of the measurement resources required to be reported for the serving cell, or is used to indicate the measured value of the beam required to be reported for the serving cell.

7. The method according to claim 6, characterized in that The measurement resources required to be reported for the serving cell include one of the following: All measurement resources of the serving cell, at least one measurement resource among all measurement resources of the serving cell that meets the conditions or events for triggering measurement reporting by the terminal device, or the measurement resource corresponding to the maximum value among all measured values of all measurement resources of the serving cell; The beam required to be reported for the serving cell includes one of the following: All beams of the serving cell, at least one beam among all beams of the serving cell that meets the conditions or events for triggering measurement reporting by the terminal device, or the beam corresponding to the maximum value among all measured values of all beams of the serving cell.

8. The method according to any one of claims 1-7, characterized in that, The measurement report includes third indication information and / or fourth indication information; The third indication information is used to indicate the measurement resources required to be reported for the candidate cell, or is used to indicate the beam required to be reported for the candidate cell; The fourth indication information is used to indicate the measured value of the measurement resources required to be reported for the candidate cell, or is used to indicate the measured value of the beam required to be reported for the candidate cell.

9. The method according to claim 8, characterized in that, The measurement resources required to be reported by the candidate cell include one of the following: All measurement resources of the candidate cell, at least one measurement resource among all measurement resources of the candidate cell that meets the conditions or events for the terminal device to trigger measurement reporting, or the measurement resource corresponding to the maximum value among all measurement values of all measurement resources of the candidate cell; The beams required to be reported by the candidate cell include one of the following: All beams of the candidate cell, at least one beam among all beams of the candidate cell that meets the conditions or events for the terminal device to trigger measurement reporting, or the beam corresponding to the maximum value among all measurement values of all beams of the candidate cell.

10. The method according to any one of claims 1-5, characterized in that, The measurement report includes fifth indication information and / or sixth indication information; The fifth indication information is used to indicate whether the i-th cell is in a reporting or non-reporting state, where i = 0, 1,..., M - 1, i represents the cell index, and M represents the maximum number of cells; The sixth indication information is used to indicate whether the j-th beam of the i-th cell is in a reporting or non-reporting state, or is used to indicate whether the k-th beam is in a reporting or non-reporting state, where j = 0, 1,..., L - 1, j represents the beam index, L represents the maximum number of beams of the cell, and k = 0, 1,..., M * L - 1, k represents the beam index; The i-th cell being in a reporting state means that the i-th cell meets the conditions or events for the terminal device to trigger measurement reporting, and the i-th cell being in a non-reporting state means that the i-th cell does not meet the conditions or events for the terminal device to trigger measurement reporting; The j-th beam being in a reporting state means that the j-th beam meets the conditions or events for the terminal device to trigger measurement reporting, and the j-th beam being in a non-reporting state means that the j-th beam does not meet the conditions or events for the terminal device to trigger measurement reporting; The k-th beam being in a reporting state means that the k-th beam meets the conditions or events for the terminal device to trigger measurement reporting, and the k-th beam being in a non-reporting state means that the k-th beam does not meet the conditions or events for the terminal device to trigger measurement reporting.

11. The method according to claim 10, wherein The measurement report further includes seventh measurement value indication information and / or eighth measurement value indication information; The seventh indication information is used to indicate the measurement value of the i-th cell when the i-th cell is in a reporting state; The eighth indication information is used to indicate the measurement value of the j-th beam when the j-th beam is in a reporting state, or is used to indicate the measurement value of the k-th beam when the k-th beam is in a reporting state.

12. The method according to any one of claims 6-11, characterized in that, The measurement report further includes at least one of the following: Ninth indication information, used to indicate the bandwidth part BWP applicable to the media access control - control element MAC CE carrying the measurement report; Tenth indication information, used to indicate the identifier of the measurement report; Eleventh indication information, used to indicate the maximum number of cells and / or the maximum number of beams per cell; or, Twelfth indication information, used to indicate the entry condition or exit condition for the measurement report to meet the conditions or events for the terminal device to trigger measurement reporting.

13. The method according to any one of claims 1-12, characterized in that, The measurement report is carried by a MAC CE.

14. A communication method, characterized in that, Including: Transmission configuration information, where the configuration information is used to configure layer 1 or layer 2 based measurement reporting; If the conditions or events for the terminal device to trigger measurement reporting are satisfied, a measurement report is received.

15. The method according to claim 14, characterized in that, The configuration information includes measurement configuration information and / or reporting configuration information; The measurement configuration information is used to configure mobility LTM measurements triggered based on layer 1 or layer 2, or channel state information CSI measurements; The reporting configuration information is used to configure the conditions or events for the terminal device to trigger measurement reporting.

16. The method according to claim 15, characterized in that, The conditions or events configured by the reporting configuration information include at least one of the following: The measured value of the serving cell is greater than a first preset threshold; The measured value of the serving cell is less than a second preset threshold; The measured value of the candidate cell is higher than the measured value of the serving cell by a preset offset; The measured value of the candidate cell is greater than a third preset threshold; The measured value of the serving cell is less than a fourth preset threshold, and the measured value of the candidate cell is greater than a fifth preset threshold; Or, The measured value of the serving cell is greater than a sixth preset threshold, and the measured value of the candidate cell is less than a seventh preset threshold.

17. The method according to any one of claims 14 - 16, characterized in that, The measurement report includes first indication information and / or second indication information; The first indication information is used to indicate the measurement resources required to be reported for the serving cell, or to indicate the beam required to be reported for the serving cell; The second indication information is used to indicate the measured value of the measurement resources required to be reported for the serving cell, or to indicate the measured value of the beam required to be reported for the serving cell.

18. The method according to claim 17, wherein The measurement resources required to be reported for the serving cell include one of the following: All measurement resources of the serving cell, at least one measurement resource among all measurement resources of the serving cell that satisfies the conditions or events for the terminal device to trigger measurement reporting, or the measurement resource corresponding to the maximum value among all measured values of all measurement resources of the serving cell; The beam required to be reported for the serving cell includes one of the following: All beams of the serving cell, at least one beam among all beams of the serving cell that satisfies the conditions or events for the terminal device to trigger measurement reporting, or the beam corresponding to the maximum value among all measured values of all beams of the serving cell.

19. The method according to any one of claims 14-18, characterized in that, The measurement report includes third indication information and / or fourth indication information; The third indication information is used to indicate the measurement resources required to be reported for the candidate cell, or to indicate the beam required to be reported for the candidate cell; The fourth indication information is used to indicate the measured value of the measurement resources required to be reported for the candidate cell, or to indicate the measured value of the beam required to be reported for the candidate cell.

20. The method according to claim 19, wherein The measurement resources required to be reported for the candidate cell include one of the following: All measurement resources of the candidate cell, at least one measurement resource among all measurement resources of the candidate cell that satisfies the conditions or events for the terminal device to trigger measurement reporting, or the measurement resource corresponding to the maximum value among all measured values of all measurement resources of the candidate cell; The beam required to be reported for the candidate cell includes one of the following: All beams of the candidate cell, at least one beam among all beams of the candidate cell that satisfies the conditions or events for the terminal device to trigger measurement reporting, or the beam corresponding to the maximum value among all measured values of all beams of the candidate cell.

21. The method according to any one of claims 14-16, characterized in that, The measurement report includes fifth indication information and / or sixth indication information; The fifth indication information is used to indicate that the i-th cell is in a reporting or non-reporting state, where i = 0, 1, …, M - 1, i represents the cell index, and M represents the maximum number of cells; The sixth indication information is used to indicate that the j-th beam of the i-th cell is in a reporting or non-reporting state, or is used to indicate that the k-th beam is in a reporting or non-reporting state, where j = 0, 1, …, L - 1, j represents the beam index, L represents the maximum number of beams of a cell, and k = 0, 1, …, M * L - 1, k represents the beam index; The i-th cell being in a reporting state means that the i-th cell meets the conditions or events for the terminal device to trigger measurement reporting, and the i-th cell being in a non-reporting state means that the i-th cell does not meet the conditions or events for the terminal device to trigger measurement reporting; The j-th beam being in a reporting state means that the j-th beam meets the conditions or events for the terminal device to trigger measurement reporting, and the j-th beam being in a non-reporting state means that the j-th beam does not meet the conditions or events for the terminal device to trigger measurement reporting; The k-th beam being in a reporting state means that the k-th beam meets the conditions or events for the terminal device to trigger measurement reporting, and the k-th beam being in a non-reporting state means that the k-th beam does not meet the conditions or events for the terminal device to trigger measurement reporting.

22. The method according to claim 21, wherein The measurement report further includes seventh measurement value indication information and / or eighth measurement value indication information; The seventh indication information is used to indicate the measurement value of the i-th cell when the i-th cell is in a reporting state; The eighth indication information is used to indicate the measurement value of the j-th beam when the j-th beam is in a reporting state, or is used to indicate the measurement value of the k-th beam when the k-th beam is in a reporting state.

23. The method according to any one of claims 17-22, characterized in that, The measurement report further includes at least one of the following: Ninth indication information, used to indicate the bandwidth part BWP applicable to the media access control - control element MAC CE carrying the measurement report; Tenth indication information, used to indicate the identifier of the measurement report; Eleventh indication information, used to indicate the maximum number of cells and / or the maximum number of beams of each cell; or, Twelfth indication information, used to indicate the entry condition or exit condition for the measurement report to meet the conditions or events for the terminal device to trigger measurement reporting.

24. A communication device, characterized in that, Comprising: A receiving unit, configured to receive configuration information for configuring layer 1 or layer 2 based measurement reporting; A sending unit, configured to send a measurement report according to the configuration information if the conditions or events for the terminal device to trigger measurement reporting are met.

25. A communication device, characterized in that, Comprising: A sending unit, configured to send configuration information for configuring layer 1 or layer 2 based measurement reporting; A receiving unit, configured to receive a measurement report if the conditions or events for the terminal device to trigger measurement reporting are met.

26. A terminal device, comprising a processor, a memory, and a computer program or instruction stored on the memory, characterized in that, The processor executes the computer program or instruction to implement the steps of the method according to any one of claims 1 - 13.

27. A network device, comprising a processor, a memory, and a computer program or instruction stored on the memory, characterized in that, The processor executes the computer program or instruction to implement the steps of the method according to any one of claims 14 - 23.

28. A chip, comprising a processor and a communication interface, characterized in that, The processor executes the steps of the method according to any one of claims 1 - 23 through the communication interface.

29. A computer-readable storage medium, characterized in that, It stores a computer program or instructions, and when the computer program or instructions are executed, the steps of the method according to any one of claims 1-23 are executed.

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