COMMUNICATION METHOD AND COMMUNICATION DEVICE

Abstract

The embodiments of the present application provide a communication method and a communication device. In the present application, a terminal device receives a preconfigured measurement gap MG indicated by a network device and MG status information corresponding to each CC in at least one CC after the CC is deactivated. The MG status information is activated or deactivated. When M CCs in at least one CC are deactivated, the terminal device activates or deactivates an MG based on the M MG status information corresponding to the M deactivated CCs, so that the terminal device can accurately determine whether to activate or deactivate a preconfigured MG based on the MG status information of the deactivated CC. This avoids the problem that a cell handover error occurs due to the inability to measure the MO corresponding to the deactivated CC.

Description

[Technical field]

[0001] This application claims priority to Chinese Patent Application No. 202210011227.0, entitled “COMMUNICATION METHOD AND COMMUNICATION APPARATUS,” filed with the China National Intellectual Property Office on January 6, 2022, and is hereby incorporated by reference in its entirety.

[0002] TECHNICAL FIELD Embodiments of the present application relate to the field of communications, and more particularly, to a communication method and a communication device. [Background technology]

[0003] In a carrier aggregation (CA) scenario, a terminal device may use multiple component carriers (CCs) simultaneously. In a CA scenario, when the receiver bandwidth of the terminal device is insufficient to cover the frequency at which the serving cell is located and the frequency at which the measured neighboring cell is located, the terminal device measures the measured neighboring cell based on a measurement gap (MG). In one technique, the base station pre-configures an MG for the terminal device and configures one or more bandwidth parts (BWPs) for all CCs in the CA combination of the terminal device. The base station also further indicates whether to activate the pre-configured MG if any BWP corresponding to each of all CCs in the CA combination is an active BWP. If all CCs in the CA combination of the terminal device are activated CCs, whether the pre-configured MG is finally activated may be determined based on the following condition: if the pre-configured MG is indicated to be deactivated for the active BWP of each CC in the CA combination of the terminal device, the terminal device deactivates the pre-configured MG, or if the pre-configured MG is indicated to be activated for the active BWP of any CC in all CCs of the terminal device, the terminal device activates the pre-configured MG.

[0004] When there are activated and deactivated CCs in the CA combination of the terminal device, the terminal device still determines whether to activate the pre-configured MG based on the MG status information corresponding to the active BWPs of CCs other than the deactivated CC in the CA combination, even though the deactivated CC also covers the measurement object (MO), because the deactivated CC does not have a corresponding active BWP, resulting in the MO corresponding to the deactivated CC not being measured, and a cell handover error occurs. Summary of the Invention [Means for solving the problem]

[0005] The embodiments of the present application provide a communication method and a communication device for avoiding cell handover errors.

[0006] According to a first aspect, a communication method is provided. The method may be performed by a terminal device, or may be performed by a component (e.g., a chip or a circuit) of a terminal device. This is not limited in this specification. For ease of explanation, the following will use an example in which the method is performed by a terminal device.

[0007] The method may include: a terminal device receives first information from a network device. The first information includes a measurement gap MG preconfigured for the terminal device. The terminal device receives second information from the network device. The second information indicates MG status information corresponding to each CC in the at least one CC after the CC is deactivated, and the MG status information is activated or deactivated. If M CCs in the at least one CC are deactivated, the terminal device activates or deactivates an MG based on the M MG status information corresponding to the M deactivated CCs, where M is a positive integer.

[0008] In the above technical solution, since the MG status information corresponding to the deactivated CC is taken into account, the terminal device can accurately determine whether to activate or deactivate the pre-configured MG based on the MG status information of the deactivated CC, thereby avoiding cell handover errors. For example, in a two-carrier aggregation scenario, the terminal device may use both CC1 and CC2, and four BWPs are configured in each of CC1 and CC2. When BWP1 to BWP4 of CC1 are active BWPs, the corresponding MG#1 status information is deactivated state, activated state, activated state, and activated state. When BWP1 to BWP4 of CC2 are active BWPs, the corresponding MG#1 status information is activated state, deactivated state, activated state, and activated state. If CC2 is a deactivated CC, CC1 is an activated CC, and the active BWP of CC1 is CC1-BWP1, there is no active BWP in CC2, and only CC1 has an active BWP, so if the existing decision condition is used, the terminal device will finally decide to deactivate the pre-configured MG#1 based only on the MG#1 status information corresponding to CC1-BWP1 when CC1-BWP1 is the active BWP. It can be seen that after CC2 is deactivated, the existing decision method does not consider whether there are measurement objects on CC2 that need to be measured in the MG when deciding whether to activate the pre-configured MG. This may lead to inaccurate decision results on whether to activate the MG. For example, there are still measurement objects that require an MG on the deactivated CC2. Since the terminal device has deactivated the pre-configured MG#1, the measurement objects that require an MG on CC2 cannot be measured.However, in the technical solution of the present application, the network device directly indicates the MG status information corresponding to the deactivated CC to the terminal device, so that in a scenario where a CC is deactivated, the terminal device can accurately decide to activate or deactivate the pre-configured MG based on the received MG status information of the deactivated CC.

[0009] In a possible design, the terminal device activating or deactivating an MG based on M MG status information corresponding to the M deactivated CCs includes: the terminal device activating or deactivating an MG based on M MG status information corresponding to the M deactivated CCs and N MG status information corresponding to active bandwidth portions BWP in the N CCs, where N is a positive integer, and the M CCs and the N CCs are all CCs within a carrier aggregation CA combination of the terminal device.

[0010] It can be understood that the N CCs are activated CCs.

[0011] In the above technical solution, the terminal device can accurately determine whether to activate or deactivate the pre-configured MG based on the received MG status information of the deactivated CC and by referring to the MG status information of the active BWP in the activated CC. This avoids cell handover errors caused by the inability to measure the MO corresponding to the deactivated CC. It will be further described with reference to the example in the first aspect. If CC2 is the deactivated CC, CC1 is the activated CC, and the active BWP in CC1 is CC1-BWP1, if the MG#1 status information of CC1-BWP1 is deactivated and the MG#1 status information of CC2 is activated, the terminal device will finally activate the pre-configured MG#1.

[0012] In a possible design, the method further includes: the terminal device receives third information from the network device, the third information indicating MG status information corresponding to each BWP in all CCs respectively when the BWP is an active BWP, and the terminal device determines N pieces of MG status information corresponding to the active BWPs in the N CCs based on the third information.

[0013] In a possible design, the terminal device activating or deactivating an MG based on the M MG status information corresponding to the M deactivated CCs and the N MG status information corresponding to the active bandwidth portions BWPs in the N CCs includes: if all the M MG status information corresponding to the M deactivated CCs are deactivated and all the N MG status information corresponding to the active BWPs in the N CCs are deactivated, the terminal device deactivates the MG; otherwise, the terminal device activates the MG.

[0014] In a possible design, if the first CC covers only the first MO, the second information indicates that the MG status information corresponding to the first CC is deactivated after the first CC is deactivated, and the first MO is a serving cell MO corresponding to the first CC, and the first CC is any CC in the at least one CC, or if the first cell corresponding to the first CC does not cover any MO, the second information indicates that the MG status information corresponding to the first CC is deactivated after the first CC is deactivated.

[0015] In the above technical solution, a decision condition is provided for determining whether the MG status information of a deactivated CC is activated or deactivated. It should be understood that for a serving cell MO corresponding to a deactivated CC, the terminal device may measure the serving cell MO without a pre-configured MG. Therefore, when a deactivated CC covers only one MO, and the MO is the serving cell MO of the cell corresponding to the CC, the MG status information of the deactivated CC may be deactivated. In this way, it can be ensured that one deactivated CC does not cause unnecessary MG activation due to the presence of the serving cell MO.

[0016] According to a second aspect, a communication method is provided. The method may be performed by a network device, or may be performed by a component (for example, a chip or a circuit) of a network device. This is not limited in this specification. For ease of explanation, the following uses an example in which the method is performed by a network device to describe.

[0017] The method may include: a network device transmits first information to a terminal device. The first information includes a measurement gap MG preconfigured for the terminal device. The network device determines second information. The second information indicates MG status information corresponding to each CC in the at least one CC after the CC is deactivated, and the MG status information is activated or deactivated. The network device transmits the second information to the terminal device.

[0018] It should be understood that at least one CC in this specification may be understood as at least one CC among all CCs in a combination of one CA of a terminal device.

[0019] In the above technical solution, the network device configures the MG status information of the deactivated CC for the terminal device, so that the terminal device can accurately determine whether to activate or deactivate the pre-configured MG based on the MG status information of the deactivated CC, thereby avoiding the problem that the MO corresponding to the deactivated CC cannot be measured, resulting in a cell handover error.

[0020] In a possible design, the method further includes: the network device sends third information to the terminal device, the third information indicating MG status information corresponding to each bandwidth portion BWP in every CC when each BWP is an active BWP.

[0021] In a possible design, the network device determines second information, where the second information indicates MG status information corresponding to each CC in the at least one CC after the CC is deactivated, and the determining whether the MG status information is activated or deactivated includes: if the first CC covers only the first MO, the network device determines second information, where the second information indicates that the MG status information corresponding to the first CC is deactivated after the first CC is deactivated, and the first MO is a serving cell MO corresponding to the first CC, and the first CC is any CC in the at least one CC, or if the first CC does not cover any MO, the network device determines second information, where the second information indicates that the MG status information corresponding to the first CC is deactivated after the first CC is deactivated.

[0022] For effects corresponding to the second aspect, please refer to the description of the effects of the first aspect, and the details will not be described again in this specification.

[0023] According to a third aspect, a communication method is provided. The method may be performed by a terminal device, or may be performed by a component (for example, a chip or a circuit) of a terminal device. This is not limited in this specification. For ease of explanation, the following will use an example in which the method is performed by a terminal device.

[0024] The method may include: the terminal device receives second information from the network device. The second information indicates S MOs to be measured corresponding to each CC in P CCs in L component carriers CCs. S is 0 or S is a positive integer, the S MOs are part or all of one or more MOs that need to be measured by the terminal device, and all L CCs are CCs in a combination of a carrier aggregation CA of the terminal device, and L is an integer greater than 1. Alternatively, the second information indicates Q MOs corresponding to each BWP in P CCs in L CCs. Q is 0 or Q is a positive integer, and the Q MOs are part or all of one or more MOs. If M CCs in L CCs are deactivated, the terminal device activates or deactivates a measurement gap MG based on the second information. M is a positive integer less than L.

[0025] In the above technical solution, when a CC is deactivated, the terminal device determines whether one or more MOs that need to be measured by the terminal device can be measured based on the correspondence between the CC and the MO configured by the network device, or the correspondence between the BWP and the MO in the CC. If one or more MOs that need to be measured by the terminal device can be measured without MG, the terminal device deactivates the pre-configured MG, and if they cannot be measured, the terminal device activates the pre-configured MG to avoid erroneous activation or deactivation of the MG.

[0026] In a possible design, the method further includes: the terminal device receiving first configuration information from the network device, the first configuration information for configuring one or more MOs for the terminal device. The terminal device receiving the first information from the network device, the first information including a measurement gap MG configured for the terminal device.

[0027] In a possible design, the terminal device activating or deactivating the MG based on the second information includes: the terminal device determines a first MO group based on the second information, the first MO group includes all MOs corresponding to BWPs whose corresponding MG status information is deactivated in active BWPs in the N CCs, the N CCs are some or all of the activated CCs in the P CCs, and N is a positive integer. The terminal device determines a second MO group, the second MO group includes MOs other than the first MO corresponding to each CC in the M CCs in the one or more MOs, the first MO corresponding to the first CC is a serving cell MO corresponding to the first CC, and the first CC is any CC in the M CCs. The terminal device deactivates the MG if the MO included in the first MO group and the MO included in the second MO group are identical.

[0028] In the above technical solution, a specific implementation procedure is provided for determining whether to activate an MG. The first MO group is a set of remaining MOs in all MOs that need to be measured by the terminal device other than the serving cell MO corresponding to the deactivated CC, and the second MO group is a set of MOs that are in the activated CC and are covered by the active BWP whose MG status information is deactivated. If the MOs included in the first MO group and the MOs included in the second MO group are identical, the terminal device deactivates the pre-configured MG, and if they are not identical, the terminal device activates the pre-configured MG.

[0029] In this specification, an example is taken in which one or more MOs that need to be measured by a terminal device are C MOs. Whether the MOs included in the first MO group and the MOs included in the second MO group are the same can be understood as follows: when deciding to deactivate an MG, the terminal device needs to determine whether all remaining MOs in the C MOs other than the first MO, which may correspond to the M deactivated CCs, can be covered by an active BWP whose MG status information is deactivated in the N activated CCs. If all remaining MOs can be covered, it indicates that there are no MOs that need to be measured using a pre-configured MG. In this way, the terminal device can deactivate an MG, and if all remaining MOs cannot be covered, the terminal device needs to activate an MG.

[0030] In a possible design, the method further includes: the terminal device receives third information from the network device, the third information indicating MG status information corresponding to each bandwidth portion BWP in the L CCs when the bandwidth portion BWP is an active BWP, and the MG status information is activated or deactivated. The terminal device determines BWPs whose corresponding MG status information is deactivated among the N active BWPs in the N CCs based on the third information.

[0031] According to a fourth aspect, a communication method is provided. The method may be performed by a network device, or may be performed by a component (for example, a chip or a circuit) of a network device. This is not limited in the present specification. For ease of explanation, the following description uses an example in which the method is performed by a network device.

[0032] The method may include: the network device determines second information. The second information indicates S MOs to be measured corresponding to each CC in P CCs in L component carriers CCs, where S is 0 or S is a positive integer, the S MOs are some or all of one or more MOs that need to be measured by the terminal device, and all L CCs are CCs in a carrier aggregation CA combination of the terminal device, and L is an integer greater than 1. Alternatively, the second information indicates Q MOs corresponding to each BWP in P CCs in L CCs, where Q is 0 or Q is a positive integer, and the Q MOs are some or all of one or more MOs. The network device transmits the second information to the terminal device.

[0033] For the beneficial effects of the fourth aspect, please refer to the description in the third aspect, and the details will not be described again in this specification.

[0034] In a possible design, the method further includes: the network device sending first information to the terminal device, the first information including a measurement gap MG configured for the terminal device, and the network device sending first configuration information to the terminal device, the first configuration information for configuring one or more MOs for the terminal device.

[0035] In a possible design, the method further includes: the network device sends third information to the terminal device, the third information indicating MG status information corresponding to each bandwidth portion BWP in the L CCs when the BWP is an active BWP, and the MG status information is activated or deactivated.

[0036] According to a fifth aspect, a communication device is provided. The device is configured to execute the method provided in the first or third aspect. Specifically, the device may include a unit and / or module configured to execute the method in either the first or third aspect, and possible implementations of the first or third aspect. For example, the device may include a processing unit and / or a communication unit.

[0037] In some implementations, the device is a terminal device. When the device is a terminal device, the communication unit may be a transceiver or an input / output interface, and the processing unit may be at least one processor. For example, the transceiver may be a transceiver circuit. For example, the input / output interface may be an input / output circuit.

[0038] In another implementation, the apparatus is a chip, chip system, or circuit used in a terminal device. If the apparatus is a chip, chip system, or circuit used in a terminal device, the communication unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, associated circuit, etc. on the chip, chip system, or circuit. The processing unit may be at least one processor, processing circuit, logic circuit, etc.

[0039] According to a sixth aspect, a communication device is provided. The device is configured to execute the method provided in the second or fourth aspect. Specifically, the device may include a unit and / or module configured to execute the method in either the second or fourth aspect, and possible implementations of the second or fourth aspect. For example, the device may include a processing unit and / or a communication unit.

[0040] In some implementations, the device is a network device. When the device is a network device, the communication unit may be a transceiver or an input / output interface, and the processing unit may be at least one processor. For example, the transceiver may be a transceiver circuit. For example, the input / output interface may be an input / output circuit.

[0041] In another implementation, the apparatus is a chip, chip system, or circuit used in a network device. If the apparatus is a chip, chip system, or circuit used in a terminal device, the communication unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, associated circuit, etc. on the chip, chip system, or circuit. The processing unit may be at least one processor, processing circuit, logic circuit, etc.

[0042] According to a seventh aspect, there is provided a communication device, the device including at least one processor, the at least one processor coupled to at least one memory, the at least one memory configured to store computer programs or instructions, the at least one processor configured to call and execute the computer programs or instructions from the at least one memory to enable the communication device to perform the method of either the first aspect or the third aspect, and possible implementations of the first aspect or the third aspect.

[0043] In some implementations, the apparatus is a terminal device.

[0044] In another implementation, the apparatus is a chip, chip system, or circuit used in a terminal device.

[0045] According to an eighth aspect, there is provided a communication device, the device including at least one processor, the at least one processor coupled to at least one memory, the at least one memory configured to store computer programs or instructions, the at least one processor configured to call and execute the computer programs or instructions from the at least one memory to enable the communication device to perform the method of either the second aspect or the fourth aspect, and possible implementations of the second aspect or the fourth aspect.

[0046] In some implementations, the apparatus is a network device.

[0047] In another implementation, the apparatus is a chip, chip system, or circuit used in a network device.

[0048] According to a ninth aspect, the present application provides a processor configured to perform the method provided in the previous aspect.

[0049] Unless otherwise stated, or where operations such as transmitting and acquiring / receiving related to the processor are not inconsistent with the actual functions in the relevant description or its internal logic, the operations may be understood as operations such as output, reception, input, etc. of the processor, or as transmitting and receiving operations performed by the radio frequency circuit and antenna, which is not limited in this application.

[0050] According to a tenth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a program code executed by a device. The program code includes the method of any of the first, second, third, or fourth aspects, and possible implementations of the first, second, third, or fourth aspects.

[0051] According to an eleventh aspect, there is provided a computer program product comprising instructions, which when executed on a computer, enable the computer to perform the method of any of the first, second, third or fourth aspects, and possible implementations of the first, second, third or fourth aspects.

[0052] According to a twelfth aspect, there is provided a chip, the chip including a processor and a communication interface, the processor reading instructions stored in a memory through the communication interface to execute the method of any of the first, second, third or fourth aspects and possible implementations of the first, second or third or fourth aspects.

[0053] For example, in one implementation, the chip further includes a memory. The memory stores a computer program or instruction. The processor is configured to execute the computer program or instruction stored in the memory. When the computer program or instruction is executed, the processor is configured to execute the method in any of the first aspect, the second aspect, the third aspect, or the fourth aspect, and possible implementations of the first aspect, the second aspect, the third aspect, or the fourth aspect.

[0054] According to a thirteenth aspect, there is provided a communication system, the communication system including the communication device as shown in the seventh and eighth aspects. [Brief description of the drawings]

[0055] [Figure 1] 1 is a schematic diagram of a communication system according to an embodiment of the present application; [Diagram 2] FIG. 2 is a schematic diagram showing the correspondence between MO1 to MO5 and CC1 and CC2 configured in a two-carrier aggregation scenario. [Diagram 3] 1 is a schematic flow chart of a communication method according to the present application. [Figure 4] 4 is a schematic flow chart of another communication method according to the present application. [Diagram 5] FIG. 2 is a schematic diagram showing the correspondence between MO1 to MO4 and CC1 and CC2 configured in a two-carrier aggregation scenario. [Figure 6] 1 is a schematic block diagram of a communication device 1000 according to the present application. [Figure 7] 1 is a schematic diagram showing the structure of a communication device 10 according to the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0056] The following describes the technical solutions of the embodiments of the present application with reference to the accompanying drawings.

[0057] The technical solutions in the embodiments of the present application may be applied to various communication systems, such as wireless communications related to 5th generation (5G), new radio (NR), long term evolution (LTE), internet of things (IoT), wireless fidelity (Wi-Fi), and the 3rd generation partnership project (3GPP), or other wireless communications that may emerge in the future.

[0058] 1 is a schematic diagram of a communication system according to an embodiment of the present application. The communication system includes at least one network device, for example, the network device 110 shown in FIG. 1. The communication system 100 may further include at least one terminal device, for example, the terminal device 120 and / or the terminal device 130 shown in FIG. 1. The network device 110 may communicate and exchange information with the terminal device 120 / 130 through a wireless link. It may be understood that the network device and the terminal device may also be referred to as a communication device.

[0059] The network device is a network side device with wireless transceiver function. The network device may be an apparatus that provides wireless communication function for terminal devices in a radio access network (RAN), and is called a RAN device. For example, the network device may be a base station, evolved NodeB (eNodeB), next generation NodeB (gNB), a base station subsequently evolved in 3GPP, a transmission reception point (TRP), an access node, a wireless relay node, a wireless backhaul node, etc. in a 5G mobile communication system, ... As another example, a network device may include one or more central units (CUs), one or more distributed units (DUs), or one or more CUs and one or more DUs. For example, the function of a CU may be implemented by one entity or different entities. For example, the function of a CU may be further divided, specifically, the control plane and the user plane are separated and implemented by using different entities, namely, a control plane CU entity (i.e., a CU-CP entity) and a user plane CU entity (i.e., a CU-UP entity), respectively. The CU-CP entity and the CU-UP entity may be coupled to the DU to jointly complete the functions of the access network device.For example, the CU is responsible for processing non-real-time protocols and services, and implements functions of the radio resource control (RRC) layer and the packet data convergence protocol (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, and implements functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. In this way, part of the functions of the radio access network device can be implemented by using multiple network function entities. These network function entities may be network elements in a hardware device, or may run software functions on dedicated hardware, or may be virtualized functions instantiated on a platform (e.g., a cloud platform). The network device may further include an active antenna unit (AAU for short). The AAU implements part of the physical layer processing functions, radio frequency processing, and functions related to active antennas. Information at the RRC layer is eventually converted to or from information at the PHY layer. Therefore, in this architecture, higher layer signaling, such as RRC layer signaling, may also be considered to be transmitted by the DU or by the DU and the AAU. It may be understood that the network device may be a device including one or more of a CU node, a DU node, and an AAU node. Also, the CU may be classified as a network device in an access network (radio access network, RAN), or the CU may be classified as a network device in a core network (CN). This is not limited in the present application.As another example, in a vehicle to everything (V2X) technology, the access network device may be a road side unit (RSU). The multiple access network devices in the communication system may be the same type of base station or different types of base stations. The base station may communicate with the terminal device, or may communicate with the terminal device through a relay station. In an embodiment of the present application, the apparatus configured to implement the function of the network device may be a network device, or may be an apparatus that can support the network device in implementing the function, such as a chip system, or may be a combined device or part that can implement the function of the access network device. The apparatus may be installed in the network device. In an embodiment of the present application, the chip system may include a chip, or may include a chip and another individual device. In an embodiment of the present application, the network device is used as an example to explain the technical solution.

[0060] The terminal device is a user-side device having a wireless transceiver function, and may be a fixed device, a mobile device, a handheld device (e.g., a mobile phone), a wearable device, an in-vehicle device, or a wireless device (e.g., a communication module, a modem, or a chip system) built into the aforementioned devices. The terminal device is configured to connect people, things, machines, etc., and can be widely used in various scenarios such as cellular communication, device-to-device (D2D) communication, V2X communication, machine-to-machine / machine-type communication (M2M / MTC) communication, Internet of Things, virtual reality (VR), augmented reality (AR), industrial control, self driving, remote medical, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, unmanned aerial vehicle, robot, etc. For example, the terminal device may be a handheld terminal in cellular communication, a communication device in D2D, an IoT device in MTC, a surveillance camera in smart transportation or smart city, or a communication device in an unmanned aerial vehicle, etc. The terminal device may also be called user equipment (UE), user terminal, user equipment, subscriber unit, subscriber station, terminal, access terminal, access station, UE station, remote station, mobile device, wireless communication device, etc. In the embodiment of the present application, the apparatus configured to implement the function of the terminal device may be a terminal device, or may be an apparatus capable of supporting the terminal device in implementing the function, for example, a chip system, or may be a combined device or part capable of implementing the function of the terminal device. The apparatus may be installed in the terminal device. For ease of explanation, the terminal device is used as an illustrative example in this application.

[0061] In order to better understand the embodiments of the present application, the following will first describe the concepts in the embodiments of the present application.

[0062] 1. Measurement object (MO): A measurement object is an object to be measured by a UE, and mainly includes one or more of the following: synchronization signal and PBCH block (SSB) frequency, SSB-based subcarrier spacing, SSB-based measurement timing configuration (SMTC) configuration, cells in a whitelist, alternatively also called an allowed list, and cells in a blacklist, alternatively also called a blocked list.

[0063] 2. Measurement gap (MG): Normally, a terminal device has only one receiver and can only receive signals on one frequency at the same time, and cannot simultaneously perform data reception and transmission and mobility measurements. Therefore, MG is a time interval dedicated to measurements and is set by the network device and the terminal device. The terminal device leaves the current frequency to perform measurements on another frequency. During this period, the network device is set not to request the terminal device to perform reception and transmission, so that the terminal device can focus on measurements and does not need to perform data reception and transmission. In essence, MG is a mechanism to perform data reception and transmission and mobility measurements at different times. MG is used for inter-frequency measurements and inter-system measurements.

[0064] 3. Activation / deactivation of pre-configured MG: One carrier contains multiple BWPs. When a terminal device performs a BWP switch on a single carrier, if it is indicated that the pre-configured MG is deactivated for the BWP to which the terminal device switches (the active BWP), the terminal device deactivates the pre-configured MG, in other words, does not start the pre-configured MG at the configured time, and if it is indicated that the pre-configured MG is activated for the BWP to which the terminal device switches (the active BWP), the terminal device activates the pre-configured MG, in other words, the pre-configured MG is started at the configured time and measurements are performed.

[0065] 4. CA: The CA technology can aggregate multiple CCs to implement large bandwidth transmission and effectively improve the transmission speed of the uplink and downlink. The terminal determines the maximum amount of component carriers that can be used simultaneously for uplink and downlink transmission based on the terminal's capabilities. For example, in a three-carrier aggregation scenario, the terminal device may use three carriers simultaneously. One of the three carriers is called a primary component carrier (PCC), the cell corresponding to the PCC is called a PCell, the other two carriers are called secondary component carriers (SCC), and the cell corresponding to the SCC is called a SCell. The CA combination of the terminal device can be understood as a set of CCs corresponding to the PCell and SCell configured by the network device for the terminal device. For example, in a three-carrier aggregation scenario, the CA combination of the terminal device includes three carriers. When the SCell is activated, the UE and the SCell need to exchange control messages. This consumes not only the power of the UE but also the radio resources of the SCell. If the data traffic volume of the UE is not large, the PCell can handle the data traffic and no additional consumption is required. In this case, the SCell can be deactivated.

[0066] It should be noted that deactivating a SCell may be understood as deactivating a CC corresponding to the SCell. The two types of descriptions are interchangeable. This is not a limitation in this application.

[0067] For example, the network device pre-configures one MG, e.g., MG#1, for the terminal device. The network device configures MO1 to MO6, and MO6 does not need to be measured in the MG. Since the network device configures only one MG for the terminal device, it may be understood that MG#1 is for measuring MO1 to MO5, or MG#1 may be described as being configured for MO1 to MO5.

[0068] For example, a network device pre-configures multiple MGs for a terminal device, e.g., MG#1 and MG#2. The network device configures MO1 to MO6, and MO1 to MO6 all need to be measured in MGs. In this case, the network device directly indicates that MG#1 is for measuring MO1 to MO3, and MG#2 is for measuring MO4 to MO6.

[0069] For example, the network device configures one MG, for example, MG#1, for the terminal device. MG#1 can be further used for synchronization signal and PBCH block (SSB) measurement, channel state information reference signal (CSI-RS) positioning measurement, non-terrestrial network (NTN) measurement, etc.

[0070] With reference to FIG. 2, the following describes a method for determining whether to activate a MG based on conditions provided in the background.

[0071] For ease of understanding, it should be noted that in this specification, multiple BWPs can be configured on one CC. If a CC is an activated CC, only one of the multiple configured BWPs can be activated. Also, if a CC is a deactivated CC, there is no BWP configured on the deactivated CC, in other words, there is no activated BWP on the deactivated CC.

[0072] As shown in Figure 2, in a two-carrier aggregation scenario, a terminal device may use both CC1 and CC2. Four BWPs are configured in both CC1 and CC2, and pre-configured MG#1 is configured for MO1 to MO5. MO1, MO2, and MO3 are covered by CC1-BWP1, and MO4 and MO5 are covered by CC2-BWP2. In this case, a specific case of MG#1 status information corresponding to each BWP in CC1 and CC2 when the BWP is an active BWP is shown in Table 1.

[0073] [Table 1]

[0074] If all CCs in the terminal device's CA combination are activated CCs (in other words, both CC1 and CC2 are activated CCs), the active BWP in CC1 is CC1-BWP1, the active BWP in CC2 is CC2-BWP2, and if CC1-BWP1 and CC2-BWP2 are active BWPs, the corresponding MG#1 status information is deactivated, so the terminal device can deactivate the preconfigured MG#1. As another example, if both CC1 and CC2 are activated CCs, the active BWP in CC1 is CC1-BWP2, the active BWP in CC2 is CC2-BWP2, and if CC1-BWP2 is the active BWP, the corresponding MG#1 status information is activated, so the terminal device needs to activate the preconfigured MG#1.

[0075] Regarding the aforementioned conditions for deciding whether to activate a pre-configured MG, the question arises whether it is still possible to decide whether to activate or deactivate a pre-configured MG based on the aforementioned conditions if one or more CCs in the CA combination of the terminal device are deactivated, in other words if there are no active BWPs on the deactivated CCs.

[0076] FIG. 2 is still used as an example. If CC2 is a deactivated CC, CC1 is an activated CC, and the active BWP in CC1 is CC1-BWP1, there is no active BWP in CC2, and the active BWP is only in CC1. Therefore, based on the above conditions, the terminal device needs to decide whether to activate the pre-configured MG based only on the MG#1 status information corresponding to the currently activated CC1-BWP1. If CC1-BWP1 is the active BWP, the terminal device will finally deactivate the pre-configured MG#1, because the corresponding MG#1 status information of CC1-BWP1 is deactivated. Since MO1, MO2, and MO3 are covered by CC1-BWP1, the deactivation of MG#1 does not affect the measurement of MO1, MO2, and MO3, but MO4 and MO5 are covered by CC2-BWP2. Since CC2-BWP2 is not an active BWP, when the terminal device deactivates the pre-configured MG#1, it cannot measure MO4 and MO5 in CC2. In other words, in a scenario in which the CC is deactivated, if the decision of whether to activate the pre-configured MG#1 is still made based on the aforementioned conditions, the pre-configured MG#1 will be erroneously deactivated.

[0077] In light of this, the present application provides a communication method for avoiding the problem that in a scenario in which a CC is deactivated, a cell handover error occurs due to an inability to measure an MO corresponding to the deactivated CC.

[0078] 3 is a schematic flowchart of a communication method according to the present application. The method may be performed by a terminal device and a network device, or by a chip in a terminal device and a chip in a network device. The network device in FIG. 3 may be the access network device 110 in FIG. 1, and the terminal device may be the terminal device 120 in FIG. 1. The method shown in FIG. 3 may include the following operations.

[0079] S301. A network device sends first information to a terminal device, where the first information includes a MG preconfigured for the terminal device. In response, the terminal device receives the first information from the network device.

[0080] For example, the preconfigured MG may include preconfigured indication information, gap mode, and gapOffset.

[0081] For example, the method further includes: the network device sends first configuration information to the terminal device, the first configuration information is for configuring C MOs for the terminal device, where C is a positive integer, and the pre-configured MG is configured for the C MOs. In response, the terminal device receives the first configuration information.

[0082] S302. The network device determines second information, where the second information indicates MG status information corresponding to each CC in the at least one CC after the CC is deactivated, and the MG status information is activated or deactivated.

[0083] For example, the MG status information may be an information element (IE) with an enumerated value activated, the MG status information is an IE with an enumerated value deactivated, or the MG status information is an IE with an enumerated value activated or deactivated, or an activation indication IE with an enumerated value true, or a deactivation indication IE with an enumerated value true. In this application, the specific indication method of the MG status information is not limited.

[0084] It should be understood that at least one CC may be understood as at least one CC among all CCs in the CA combination of the terminal device in the CA scenario.

[0085] For ease of explanation, the following description will be given by using an example in which the number of CCs in the combination of CAs of a terminal device is L, where L is an integer greater than 1.

[0086] In one implementation, the second information indicates MG status information corresponding to each CC of the PCC and all SCCs of the terminal device after the CC is deactivated, in other words, the second information indicates MG status information corresponding to each CC in all CCs after the CC is deactivated.

[0087] In another implementation, the second information indicates MG status information corresponding to each CC in all SCCs or some SCCs of the terminal device, respectively, after the CC is deactivated. For example, if the first CC covers only the first MO, the second information indicates that the MG status information corresponding to the first CC is deactivated after the first CC is deactivated. The first MO is one MO in the C MOs, and the first MO is a serving cell MO corresponding to the first CC. The first CC is any CC among the at least one CC. Alternatively, if the first CC does not cover any MO in the C MOs, the second information indicates that the MG status information corresponding to the first CC is also deactivated after the first CC is deactivated, and otherwise, the second information indicates that the MG status information corresponding to the first CC is activated after the first CC is deactivated.

[0088] It should be understood that in a CA scenario, one CC in a CA combination corresponds to one serving cell, and a serving cell corresponds to only one serving cell MO. Therefore, the serving cell MO corresponding to a first CC is the serving cell MO corresponding to the serving cell corresponding to the first CC.

[0089] For example, if the first CC covers only the first MO, the second information indicates that the MG status information corresponding to the first CC is deactivated after the first CC is deactivated. The reason is that the serving cell MO corresponding to the deactivated CC can be measured without a pre-configured MG. Therefore, if the deactivated first CC covers only one MO and the MO is the serving cell MO of the cell corresponding to the first CC, the MG status information of the first CC can be deactivated after the first CC is deactivated.

[0090] For ease of explanation, in this application, a MO covered by a CC is described as a MO covered by a cell corresponding to the CC or a MO corresponding to the CC, which is not limited in this application.

[0091] In a specific implementation, one bit or two bits in the second information may indicate MG status information corresponding to one CC in at least one CC after the CC is deactivated. For example, if one bit is 0, it indicates that the MG status information corresponding to the CC is deactivated after the CC is deactivated, or if one bit is 1, it indicates that the MG status information corresponding to the CC is activated after the CC is deactivated, or vice versa. As another example, if two bits are 00, it indicates that the CC does not cover any MO in C MOs, in other words, it indicates that the status information of the pre-configured MG corresponding to the CC is deactivated after the CC is deactivated. If two bits are 01, it indicates that the CC covers only one MO in C MOs, and the MO is a serving cell MO, in other words, it indicates that the status information of the pre-configured MG corresponding to the CC is deactivated after the CC is deactivated. If the two bits are 10, it indicates that the CC covers only one MO in the C MOs, and the MO is not a serving cell MO, in other words, it indicates that the status information of the pre-configured MG corresponding to the CC is activated after the CC is deactivated. If the two bits are 11, it indicates that the CC covers multiple MOs in the C MOs, in other words, it indicates that the status information of the pre-configured MG corresponding to the CC is activated after the CC is deactivated.

[0092] In another implementation, the second information indicates MOs covered by each CC in at least one CC. For example, if one CC does not cover any MO in C MOs, it indicates that the status information of the pre-configured MG corresponding to the CC is deactivated after the CC is deactivated. If one CC covers only one MO in C MOs and the MO is a serving cell MO, it indicates that the status information of the pre-configured MG corresponding to the CC is deactivated after the CC is deactivated. If one CC covers only one MO in C MOs and the MO is not a serving cell MO, it indicates that the status information of the pre-configured MG corresponding to the CC is activated after the CC is deactivated. If one CC covers multiple MOs in C MOs, it indicates that the status information of the pre-configured MG corresponding to the CC is activated after the CC is deactivated.

[0093] In the following, an example is used to specifically describe the method of determining the MG status information corresponding to the deactivated CC. Figure 2 is used as an example. For the configuration of Figure 2, please refer to the above description. The details will not be described again in this specification. Assume that MO1 is the serving cell MO of the cell corresponding to CC1, and MO4 is the serving cell MO of the cell corresponding to CC2. It can be seen that in addition to MO1, there is another MO corresponding to CC1. Therefore, the MG status information corresponding to the deactivated CC1 is activated. Similarly, in addition to MO4, there is another MO corresponding to CC2. The MG status information corresponding to the deactivated CC2 is activated. It can be understood that if the MO corresponding to CC2 is only MO4, the MG status information corresponding to the deactivated CC2 is deactivated.

[0094] It should be understood that in general, the four BWPs configured in one CC are four different size BWPs, not the four BWPs obtained through equal division in Figure 2. Figure 2 simply shows an example of four BWPs configured in one CC.

[0095] S303. The network device transmits the second information to the terminal device. In response, the terminal device receives the second information from the network device.

[0096] S304. If the M CCs in the at least one CC are deactivated, the terminal device activates or deactivates an MG based on the M MG status information corresponding to the M deactivated CCs, where M is a positive integer.

[0097] In one implementation, the terminal device activates or deactivates the MG based on the MG status information corresponding to the M deactivated CCs in the second information and the MG status information corresponding to the currently N active BWPs in the N CCs, where N is a positive integer, and the N CCs are CCs in the L CCs excluding all M CCs. Specifically, if the MG status information corresponding to the M deactivated CCs are all deactivated and the MG status information corresponding to the currently N active BWPs in the N activated CCs are all deactivated, the terminal device deactivates the MG; otherwise, the terminal device activates the MG.

[0098] It should be understood that a network device may configure multiple BWPs for terminal devices in each CC, however, in practical applications, only one BWP can be activated at a time for one CC.

[0099] For example, before the terminal device activates or deactivates an MG, the method further includes: the network device sends third information to the terminal device. The third information indicates MG status information corresponding to each BWP in the L CCs when the BWP is an active BWP. In response, the terminal device receives the third information sent by the network device. The terminal device determines MG status information corresponding to the current N active BWPs in the N CCs based on the third information. For example, FIG. 2 is used as an example. For the configuration of FIG. 2, please refer to the above description. Details will not be described again in this specification. In this case, the third information indicates MG#1 status information corresponding to each BWP in CC1 and CC2 when the BWP is an active BWP. For specific correspondence, please refer to the description in Table 1. Details will not be described again in this specification.

[0100] It should be noted that some CCs in the L CCs may overlap with each other in the frequency domain, so that some MOs in the C MOs configured by the network device for the terminal device may be included in the overlapping areas of these CCs. In this case, the network device needs to further determine the CCs corresponding to these MOs. For example, if CC1-BWP3 and CC2-BWP2 in FIG. 2 partially overlap, and the frequency domain positions of MO4 and MO5 exactly belong to the overlapping part, MO4 and MO5 correspond to both CC1 and CC2. In this case, the network device can make each MO in the overlapping CCs correspond to only one CC, so that the network device further determines the MG status information corresponding to the deactivated CCs or active BWPs in the CCs based on the corresponding status of the MOs. For example, assuming that MO4 is a serving cell MO corresponding to CC2, the network device can make MO4 correspond to CC2. Also, since most MOs in CC1 may be covered by CC1-BWP1, the network device can make the unique MO5 that cannot be covered by CC1-BWP1 in CC1 correspond to CC2. As another example, according to the random allocation principle, the network device can alternately assign MO4 and MO5 to either CC1 and CC2, which is not particularly limited in this application.

[0101] In the following, the method of determining to activate or deactivate a pre-configured MG by using the above-mentioned method will be described in detail by using an example. The CA scenario shown in FIG. 2 is still used as an example. The second information indicates that the MG#1 status information corresponding to the deactivated CC2 is activated, and the contents indicated by the third information are shown in Table 1. In this case, if CC2 is the deactivated CC and the active BWP in CC1 is CC1-BWP1, the MG#1 status information corresponding to the deactivated CC2 is activated, and the MG#1 status information corresponding to CC1-BWP1 in Table 1 when CC1-BWP1 is the active BWP is deactivated. Therefore, in this scenario, the terminal device needs to activate MG#1.

[0102] It should be understood that in this embodiment, the order of transmitting the first information, the second information, and the third information is not limited. The first information, the second information, and the third information may be carried in multiple messages, or may be carried in the same message.

[0103] It can be understood that in the above solution, the pre-configured MG is for all MOs configured by the network device for the terminal device. Currently, there is another MG configuration mode (concurrent MG). The MG pre-configured by the network device can be for one or more MOs in all MOs. For example, the MG#1 configured by the network device is only for MO1 and MO5 shown in FIG. 2. When a CC is deactivated and the MG#1 status information corresponding to the deactivated CC needs to be determined, only MO1 and MO5 corresponding to MG#1 need to be considered. For example, the MOs corresponding to CC1 are MO1, MO2, and MO3. However, MG#1 is only for MO1, and MO1 is the serving cell MO. Therefore, even if MO2 and MO3 still exist in the deactivated CC1, the MG#1 status information corresponding to the deactivated CC1 is also deactivated. Similarly, the MOs corresponding to CC2 are MO4 and MO5. However, MG#1 is only for MO5. Therefore, the MG#1 status information corresponding to the deactivated CC2 is activated. For a method for determining whether to activate or deactivate an MG by a terminal device in a scenario in which one or more CCs are deactivated, please refer to the description of S303, and the details will not be described again in this specification.

[0104] It can be seen that in a scenario where a CC is deactivated, if the terminal device determines whether to activate a pre-configured MG by only considering the MG status information of the active BWPs in all activated CCs in the CA combination, and does not consider the MG status information of the deactivated CC, the MOs corresponding to the deactivated CCs may be ignored. As a result, the terminal device cannot measure these MOs. However, in the technical solution provided in this application, the network device considers whether to activate an MG for the MOs corresponding to the deactivated CCs by indicating the MG status information corresponding to the deactivated CCs to the terminal device. This can avoid the problem that a cell handover error occurs due to the inability to measure the MOs corresponding to the deactivated CCs.

[0105] 4 is a schematic flowchart of another communication method according to the present application. The method may be performed by a terminal device and a network device, or by a chip in a terminal device and a chip in a network device. The network device in FIG. 4 may be the access network device 110 in FIG. 1, and the terminal device may be the terminal device 120 in FIG. 1. The method shown in FIG. 4 may include the following operations.

[0106] S401. The network device determines second information.

[0107] In an implementation, the second information indicates S MOs corresponding to each CC in the P CCs in the L CCs. S is 0 or S is a positive integer. When S is a positive integer, the S MOs are part or all of one or more MOs that need to be measured by the terminal device, the L CCs are all CCs in the CA combination of the terminal device, and L is an integer greater than 1.

[0108] In another implementation, the second information indicates Q MOs corresponding to each BWP in P CCs in L CCs, where Q is 0 or Q is a positive integer. When Q is a positive integer, the Q MOs are part or all of one or more MOs that need to be measured by the terminal device, the L CCs are all CCs in the CA combination of the terminal device, and L is an integer greater than 1.

[0109] It should be understood that a prerequisite for the network device to determine the second information is that the network device pre-configures the same MG for one or more MOs that need to be measured by the terminal device. For example, the pre-configured MG may include a gap mode and a gapOffset.

[0110] The method further includes: the network device sends first configuration information and first information to the terminal device. The first configuration information is for configuring one or more MOs that need to be measured for the terminal device, and the first information includes a MG preconfigured for the terminal device. The MG is preconfigured such that the terminal device needs to measure one or more MOs. In response, the terminal device receives the first configuration information and the first information.

[0111] For ease of explanation, the following uses an example in which the one or more MOs that need to be measured by the terminal device are C MOs, where C is a positive integer.

[0112] In a first implementation form of the second information, when P is equal to L, the second information indicates a correspondence relationship between each CC in the L CCs and the C MOs, which can alternatively be described as the second information indicating a correspondence relationship between each CC in all CCs of the terminal device and the C MOs, and when P is smaller than L, the second information indicates a correspondence relationship between each CC in a portion of the L CCs and the C MOs.

[0113] In a second implementation form of the second information, when P is equal to L, the second information indicates a correspondence relationship between each BWP in each CC among the L CCs and the C MOs, which can alternatively be described as the second information indicating a correspondence relationship between each BWP in each CC among all CCs of the terminal device and the C MOs, and when P is smaller than L, the second information indicates a correspondence relationship between each BWP in each CC in a portion of the L CCs and the C MOs.

[0114] In the following, an example is used to describe how to determine the second information in the first implementation form with reference to a specific scenario. Figure 2 is used as an example. The pre-configured MG#1 is for MO1 to MO5. When P=L=2, the second information indicates that CC1 corresponds to MO1, MO2, and MO3, and CC2 corresponds to MO4 and MO5; when P is smaller than L, for example, when L=2 and P=1, the second indication may indicate that CC2 corresponds to MO4 and MO5, or the second indication may indicate that CC1 corresponds to MO1, MO2, and MO3.

[0115] In the following, an example is used to describe how to determine the second information in the second implementation with reference to a specific scenario. Figure 2 is used as an example. The pre-configured MG#1 is for MO1 to MO5. When P=L=2, the second information indicates that CC1-BWP1 corresponds to MO1, MO2, and MO3, CC1-BWP2, CC1-BWP3, and CC1-BWP4 all correspond to 0 MOs, CC2-BWP1, CC2-BWP3, and CC2-BWP4 all correspond to 0 MOs, and CC2-BWP2 corresponds to MO4 and MO5.

[0116] S402. The network device transmits second information to the terminal device. In response, the terminal device receives the second information from the network device.

[0117] S403. If M CCs in the L CCs are deactivated, the terminal device activates or deactivates an MG based on the second information, where M is a positive integer smaller than L.

[0118] It should be understood that when P is smaller than L, the MOs corresponding to the P CCs indicated by the second information may not include the C MOs that are configured. Therefore, the range of CCs to be activated or deactivated needs to be limited. The limitation is as follows: the N activated CCs in the L CCs are some or all of the CCs in the P CCs. The N CCs are CCs other than the M CCs in the L CCs. For specific reasons, please refer to the following description. Details will not be described in this specification.

[0119] In a specific implementation, the terminal device activating or deactivating the MG based on the second information may include the following steps.

[0120] 1. The terminal device determines a first MO group based on the second information, the first MO group including MOs corresponding to each BWP whose MG status information is deactivated in the currently active BWPs in the N activated CCs.

[0121] Please note that when the MG status information corresponding to a BWP in one CC is deactivated, it indicates that all MOs corresponding to that CC and indicated in the second information are covered by the BWP. The specific reason is as follows: if multiple BWPs in one CC all cover MOs, no matter which BWPs in the CC are activated, there are still MOs on inactive BWPs in the CC that require GAP measurement. Therefore, no matter which BWPs in the CC are activated, the MG status information corresponding to the active BWPs is activated. Only when all MOs corresponding to a CC are covered by the same BWP, the MG status information corresponding to the BWPs when the BWP is an active BWP is deactivated.

[0122] 2. The terminal device determines a second MO group. The second MO group includes one MO among the C MOs, except for a first MO corresponding to each of the M deactivated CCs. The first MO corresponding to the first CC is a serving cell MO corresponding to the first CC, and the first CC is any CC among the M CCs.

[0123] It should be understood that the order of steps 1 and 2 is not particularly limited.

[0124] 3. If the MOs included in the first MO group and the MOs included in the second MO group are the same, the terminal device decides to deactivate the MG. If the MOs included in the first MO group and the MOs included in the second MO group are different, the terminal device activates the MG.

[0125] Specifically, when deciding to deactivate the MG, the terminal device needs to determine whether all MOs in the first MO group are MOs covered by active BWPs whose MG status information is deactivated in the N activated CCs. If so, it indicates that there are no MOs that need to be measured by using the pre-configured MG. In this way, the terminal device may deactivate the MG. If not, the terminal device needs to activate the MG.

[0126] In this section, the specific reason why the range of the activated or deactivated CC is limited will be described. From the above, it can be seen that when deciding whether to activate an MG, the decision needs to be made based on the MOs included in the first MO group and the second MO group. Once the second MO group is determined, the serving cell MO and the C MOs corresponding to the M deactivated CCs are all known to the terminal device. Therefore, it is not necessary to determine the second MO group based on the second information. However, once the first MO group is determined, the MOs corresponding to each BWP whose MG status information is deactivated in the currently active BWP among the N active CCs need to be known. Thus, the second MO group needs to be determined based on the second information. In other words, the N activated CCs in step 1 need to be some or all of the P CCs configured in the second information. If the CC1 included in the N activated CCs is a CC other than the P CCs configured by the second information, the MO corresponding to CC1 is not configured in the second information, so that the terminal device may not be able to determine the MO corresponding to the active BWP whose MG status information is deactivated in CC1 when determining the first MO group. As a result, the determined set of MOs to be included in the first MO group may be inaccurate, and pre-configured MGs may be activated unnecessarily.

[0127] For example, the BWP whose MG status information among the active BWPs of the N activated CCs is deactivated may be determined based on the third information sent by the network device to the terminal device. The third information indicates the MG status information corresponding to each BWP in the L CCs when the BWP is an active BWP. In response, the terminal device receives the third information sent by the network device. The terminal device determines the MG status information corresponding to the currently active BWP in the N CCs based on the third information.

[0128] In the following, the method of determining to activate or deactivate a pre-configured MG by using the above-mentioned method will be described in detail by using an example. Figure 2 is still used as an example. L=P=2, the pre-configured MG#1 is for MO1 to MO5, MO1 is the serving cell MO corresponding to CC1, MO4 is the serving cell MO corresponding to CC2, the second information indicates that the MOs corresponding to CC1 are MO1, MO2, and MO3, and the MOs corresponding to CC2 are MO4 and MO5, and the third information indicates the MG#1 status information corresponding to each BWP in CC1 and CC2 when the BWP is an active BWP. For the specific correspondence, please refer to the description in Table 1. The details will not be described again in this specification. In this case, after CC2 is deactivated, the currently active BWP in CC1 is BWP1, and the MG status information corresponding to BWP1 is deactivated. It is determined that the first MO group includes MO1, MO2, and MO3, and the second MO group includes MO1, MO2, MO3, and MO5. Since the MOs included in the first MO group are not equal to the MOs included in the second MO group, the terminal device needs to activate the preconfigured MG#1. It can be understood that since MO4 is a serving cell MO corresponding to CC2, the terminal device only needs to consider whether all remaining MO1, MO2, MO3, and MO5 other than MO4 are covered by CC1-BWP. Since MO5 is not covered by CC1-BWP, the terminal device needs to activate the preconfigured MG#1.

[0129] In the above solution, it can be understood that the pre-configured MG is for all MOs (i.e., C MOs) configured by the network device for the terminal device. Currently, there is another MG configuration mode (concurrent MG). The MG pre-configured by the network device may be for one or more MOs in all MOs. It is used as an example that the MG#1 configured by the network device is only for MO1 and MO5 shown in FIG. 2. In this embodiment, only MO1 and MO5 corresponding to MG#1 need to be considered for the configuration of the second information and the determination of MOs in the first MO group and the second MO group. For the specific decision process of determining whether to activate MG#1 in the scenario where CC is deactivated, please refer to the description in S404. The details will not be described again in this specification.

[0130] In the above technical solution, the network device configures a correspondence relationship between the CC and the MO, or a correspondence relationship between the BWP in the CC and the MO, for the terminal device. When the CC is deactivated, the terminal device may consider deactivating the MO corresponding to the CC, to avoid the problem of cell handover error occurring due to inability to measure the MO corresponding to the deactivated CC. Also, compared with the embodiment corresponding to FIG. 3, the network device only indicates the correspondence relationship between the CC or the BWP and the MO, and does not directly indicate the MG status information of the deactivated CC to the terminal device. This reduces the excessive decision logic introduced on the network side, thereby reducing the energy consumption of the network device and reducing the calculation complexity, delay, or possibility of error.

[0131] In addition to the above two communication methods, the present application further provides another communication method to avoid the problem that in a scenario in which a CC is deactivated, a cell handover error occurs because the MO corresponding to the deactivated CC cannot be measured. The method may be performed by a terminal device and a network device, or by a chip in a terminal device and a chip in a network device. In the method, the network device may be the access network device 110 in FIG. 1, and the terminal device may be the terminal device 120 in FIG. 1. The method may include the following operations.

[0132] S501. A network device sends first information to a terminal device, where the first information includes a MG preconfigured for the terminal device. In response, the terminal device receives the first information from the network device.

[0133] The pre-configured MG may include the gap mode and gapOffset.

[0134] For example, the method further includes: the network device sends first configuration information to the terminal device, the first configuration information is for configuring C MOs for the terminal device, where C is a positive integer, and the pre-configured MG is configured for the C MOs. In response, the terminal device receives the first configuration information.

[0135] S502. The network device sends second information to the terminal device. The second information indicates whether the terminal device needs to activate a pre-configured MG in a scenario in which any M CCs among the L CCs are deactivated and different BWPs are activated in the remaining N CCs among the L CCs except the M CCs. The L CCs are all CCs in the CA combination of the terminal device, where L is an integer greater than 1, and M is a positive integer. In response, the terminal device receives the second information from the network device.

[0136] In simple terms, the network device enumerates the results of determining whether the terminal device needs to activate a pre-configured MG in a scenario where any one or more CCs in the CA combination of the terminal device are deactivated based on the second information. In this way, the terminal device only needs to know the currently deactivated CCs and the currently active BWPs, and can quickly decide whether to activate an MG based on the second information, thereby shortening the decision time of the terminal device and avoiding the introduction of excessive decision logic on the terminal device side.

[0137] In the following, the CA scenario shown in Fig. 5 is used as an example to describe the contents indicated by the second information. In the CA scenario shown in Fig. 5, a pre-configured MG#1 is configured for MO1 to MO4, MO1, MO2, and MO3 are covered by CC1-BWP1, MO4 is covered by CC2-BWP2, MO1 is the serving cell MO corresponding to CC1, and MO4 is the serving cell MO corresponding to CC2. It can be seen that the MG#1 status information corresponding to the deactivated CC1 is activated after CC1 is deactivated, and the MG#1 status information corresponding to the deactivated CC2 is deactivated after CC2 is deactivated, and the specific MG#1 status information corresponding to each BWP in CC1 and CC2 when the BWP is an active BWP is shown in Table 2.

[0138] [Table 2]

[0139] The contents in Table 3 (i.e., an example of the second information) can be determined by referring to Table 1 and the MG#1 status information corresponding to the deactivated CC1 and the deactivated CC2 after CC1 and CC2 are deactivated. It can be seen that the terminal device only needs to know the currently deactivated CC and the currently active BWP, and can directly determine whether to activate MG#1 by querying Table 3. For example, in a scenario where CC2 is deactivated and CC1-BWP1 in CC1 is the active BWP, it can be seen that the terminal device needs to deactivate MG#1 by querying the contents in the second column of the last row in Table 3. As another example, when CC2 is deactivated and CC1-BWP3 in CC1 is the active BWP, it can be seen that the terminal device needs to activate MG#1 by querying the fourth column of the last row in Table 3.

[0140] [Table 3]

[0141] For example, when both CC1 and CC2 are active CCs, the network device may further enumerate MG#1 status information corresponding to different active BWP combinations in CC1 and CC2, and indicate the enumerated MG#1 status information to the terminal device. For example, the contents indicated by the indication information are shown in Table 4.

[0142] [Table 4]

[0143] For example, Table 3 and Table 4 can be combined into Table 5.

[0144] [Table 5]

[0145] For example, in S501, the second information may also indicate MG#1 status information corresponding to the deactivated CC1 and the deactivated CC2, and the contents in Table 4 after CC1 and CC2 are deactivated. If the row or column of the active BWP of the activated CC in Table 4 includes "deactivated" and the MG status information corresponding to the deactivated CC is deactivated, the terminal device deactivates MG#1, otherwise, the terminal device activates MG#1. For example, the network device indicates that the MG#1 status information corresponding to the deactivated CC2 is deactivated. In this way, in a scenario where CC2 is deactivated and CC1-BWP1 in CC1 is an active BWP, the column corresponding to CC1-BWP1 in Table 4 includes "deactivate MG#1" and the MG#1 status information corresponding to the deactivated CC2 is also deactivated, so the terminal device deactivates MG#1.

[0146] For example, to reduce overhead, when showing Table 1 to Table 5, the network device may show only the BWP combinations corresponding to the MG#1 status information being deactivated. For example, Table 5 may be simplified to Table 6.

[0147] [Table 6]

[0148] S503. When the M CCs of the L CCs are deactivated, the terminal device determines whether to activate or deactivate the MG based on the second information.

[0149] The communication method provided in the present application has been described in detail above. Next, the communication device provided in the present application will be described.

[0150] FIG. 6 is a schematic block diagram of a communication device 1000 in accordance with the present application.

[0151] In a possible design, the communication device 1000 includes a receiving unit 1100 and a processing unit 1200. The communication device 1000 may implement steps or procedures performed by a terminal device in the aforementioned method embodiments. For example, the communication device 1000 may be a terminal device, or a chip or circuit provided in a terminal device. The receiving unit 1100 is configured to perform a receiving-related operation of the terminal device in the aforementioned method embodiments, and the processing unit 1200 is configured to perform a processing-related operation of the terminal device in the aforementioned method embodiments.

[0152] In a possible implementation, the receiving unit 1100 is configured to receive first information. The first information includes a MG preconfigured for the terminal device. The receiving unit 1100 is further configured to receive second information. The second information indicates MG status information corresponding to each CC in the at least one CC after the CC is deactivated, and the MG status information is activated or deactivated. The processing unit 1200 is configured to activate or deactivate an MG based on the M MG status information corresponding to the M deactivated CCs when M CCs in the at least one CC are deactivated. M is a positive integer.

[0153] For example, the processing unit 1200 is specifically configured to activate or deactivate an MG based on M MG status information corresponding to M deactivated CCs and N MG status information corresponding to active bandwidth portions BWP in the N CCs, where N is a positive integer, and the M CCs and the N CCs are all CCs in a carrier aggregation CA combination of the terminal device.

[0154] For example, the receiving unit 1100 is further configured to receive third information, the third information indicating MG status information corresponding to each BWP in all CCs respectively when the BWP is an active BWP, and the processing unit 1200 is further configured to determine N pieces of MG status information corresponding to the active BWPs in the N CCs based on the third information.

[0155] For example, the processing unit 1200 is specifically configured to deactivate an MG when all M pieces of MG status information corresponding to the M deactivated CCs are deactivated and all N pieces of MG status information corresponding to active BWPs in the N CCs are deactivated.

[0156] In another possible implementation, the receiving unit 1100 is configured to receive second information. The second information indicates S MOs to be measured corresponding to each CC in P CCs in L component carriers CC. S is 0 or S is a positive integer, the S MOs are some or all of one or more MOs that need to be measured by the terminal device, and all L CCs are CCs in the combination of carrier aggregation CA of the terminal device, and L is an integer greater than 1. Alternatively, the second information indicates Q MOs corresponding to each BWP in P CCs in L CCs. Q is 0 or Q is a positive integer, and the Q MOs are some or all of one or more MOs. The processing unit 1200 is configured to activate or deactivate the measurement gap MG based on the second information if M CCs in L CCs are deactivated. M is a positive integer less than L, and the N activated CCs in L CCs are some or all of the CCs in P CCs.

[0157] For example, the receiving unit 1100 is further configured to receive first configuration information. The first configuration information is for configuring one or more MOs for the terminal device.

[0158] For example, the receiving unit 1100 is further configured to receive first information. The first information includes a measurement gap MG configured for the terminal device.

[0159] For example, the processing unit 1200 is specifically configured to: determine a first MO group based on the second information, where the first MO group includes MOs corresponding to BWPs whose corresponding MG status information is deactivated in active BWPs within the N CCs, where the N CCs are some or all of the activated CCs within the P CCs, where N is a positive integer; determine a second MO group, where the second MO group includes MOs other than the first MO corresponding to each CC within the M CCs in one or more MOs, where the first MO corresponding to the first CC is a serving cell MO corresponding to the first CC, and the first CC is any CC within the M CCs; and deactivate the MG if the MO included in the first MO group and the MO included in the second MO group are identical.

[0160] For example, the receiving unit 1100 is further configured to receive third information, the third information indicating MG status information corresponding to each bandwidth portion BWP in the L CCs when the bandwidth portion BWP is an active BWP, and the MG status information is activated or deactivated. The processing unit 1200 is further configured to determine a BWP whose corresponding MG status information is deactivated in the N active BWPs in the N CCs based on the third information.

[0161] For example, the communication device 1000 further includes a transmitting unit 1300. The transmitting unit 1300 and the receiving unit 1100 may alternatively be integrated into a transceiver unit having both receiving and transmitting functions, which is not limited herein.

[0162] For example, in an implementation where the communication device 1000 is a terminal device in a method embodiment, the transmitting unit 1300 may be a transmitter and the receiving unit 1100 may be a receiver. Alternatively, the receiver and the transmitter may be integrated into a transceiver. The processing unit 1200 may be a processing device.

[0163] The functions of the processing device may be implemented by hardware or by hardware executing corresponding software. For example, the processing device may include a memory and a processor. The memory is configured to store a computer program, and the processor reads and executes the computer program stored in the memory, enabling the communication device 1000 to perform the operations and / or processes performed by the terminal device in the method embodiment. For example, the processing device may include only a processor, and the memory configured to store the computer program is located outside the processing device. The processor is connected to the memory via circuits / wiring to read and execute the computer program stored in the memory. As another example, the processing device may be a chip or an integrated circuit.

[0164] For example, in an implementation where the communication device 1000 is a chip or integrated circuit mounted on a terminal device, the transmitting unit 1300 and the receiving unit 1100 may be a communication interface or interface circuit, respectively. For example, the transmitting unit 1300 is an output interface or output circuit, and the receiving unit 1100 is an input interface or input circuit. The processing unit 1200 may be a processor or microprocessor integrated on a chip or integrated circuit, which is not limited herein.

[0165] In another possible design, the communication device 1000 includes a processing unit 1200 and a transmitting unit 1300. The communication device 1000 may implement steps or procedures performed by a network device in the aforementioned method embodiments. For example, the communication device 1000 may be a network device, or a chip or circuit provided in a network device. The transmitting unit 1300 is configured to perform a receiving-related operation of the network device in the aforementioned method embodiments. The processing unit 1200 is configured to perform a processing-related operation of the network device in the aforementioned method embodiments.

[0166] In a possible implementation, the sending unit 1300 is configured to send first information to the terminal device. The first information includes a measurement gap MG preconfigured for the terminal device. The processing unit 1200 is configured to determine second information. The second information indicates MG status information corresponding to each CC in the at least one CC after the CC is deactivated, and the MG status information is activated or deactivated. The sending unit 1300 is further configured to send the second information to the terminal device.

[0167] For example, the sending unit 1300 is further configured to send third information to the terminal device, the third information indicating MG status information respectively corresponding to each bandwidth portion BWP in every CC when each BWP is an active BWP.

[0168] For example, the processing unit 1200 is specifically configured to: determine, if the first CC covers only the first MO, the second information indicating that the MG status information corresponding to the first CC is deactivated after the first CC is deactivated, the first MO is a serving cell MO corresponding to the first CC, and the first CC is any CC in the at least one CC; or determine, if the first CC does not cover any MO, the second information indicating that the MG status information corresponding to the first CC is deactivated after the first CC is deactivated.

[0169] In another possible implementation, the processing unit 1200 is configured to determine the second information. The second information indicates S MOs to be measured corresponding to each CC in P CCs in L component carriers CCs. S is 0 or S is a positive integer, the S MOs are part or all of one or more MOs that need to be measured by the terminal device, and all L CCs are CCs in the combination of carrier aggregation CA of the terminal device, and L is an integer greater than 1. Alternatively, the second information indicates Q MOs corresponding to each BWP in P CCs in L CCs. Q is 0 or Q is a positive integer, the Q MOs are part or all of one or more MOs. The transmitting unit 1300 is configured to transmit the second information to the terminal device, and the terminal device activates or deactivates a measurement gap MG based on the second information. The MG is preconfigured for one or more MOs.

[0170] For example, the sending unit 1300 is further configured to send first information to the terminal device. The first information includes a measurement gap MG configured for the terminal device.

[0171] For example, the sending unit 1300 is further configured to send first configuration information to a terminal device, the first configuration information being for configuring one or more MOs for the terminal device.

[0172] For example, the sending unit 1300 is further configured to send third information to the terminal device. The third information indicates MG status information corresponding to each bandwidth portion BWP in the L CCs when the BWP is an active BWP. The MG status information is activated or deactivated.

[0173] For example, the communication device 1000 further includes a receiving unit 1100. The transmitting unit 1300 and the receiving unit 1100 may alternatively be integrated into a transceiver unit having both receiving and transmitting functions, which is not limited herein.

[0174] For example, in an implementation where the communication device 1000 is a network device in a method embodiment, the sending unit 1300 may be a transmitter and the receiving unit 1100 may be a receiver. Alternatively, the receiver and the transmitter may be integrated into a transceiver. The processing unit 1200 may be a processing device.

[0175] The functions of the processing device may be implemented by hardware or by hardware executing corresponding software. For example, the processing device may include a memory and a processor. The memory is configured to store a computer program, and the processor reads and executes the computer program stored in the memory, enabling the communication device 1000 to perform the operations and / or processes performed by the network device in the method embodiment. For example, the processing device may include only a processor, and the memory configured to store the computer program is located outside the processing device. The processor is connected to the memory via circuitry / wiring to read and execute the computer program stored in the memory. As another example, the processing device may be a chip or an integrated circuit.

[0176] For example, in an implementation in which the communication device 1000 is a chip or integrated circuit mounted on a network device, the sending unit 1300 and the receiving unit 1100 may be a communication interface or interface circuit, respectively. For example, the sending unit 1300 is an output interface or output circuit, and the receiving unit 1100 is an input interface or input circuit. The processing unit 1200 may be a processor or microprocessor integrated on a chip or integrated circuit, which is not limited herein.

[0177] 7 is a schematic diagram of the structure of a communication device 10 according to the present application. The device 10 includes a processor 11. The processor 11 is coupled to a memory 12. The memory 12 is configured to store computer programs or instructions and / or data. The processor 11 is configured to execute computer programs or instructions stored in the memory 12 or read data stored in the memory 12 to perform the methods in the above-mentioned method embodiments.

[0178] For example, there may be one or more processors 11 .

[0179] For example, there may be one or more memories 12 .

[0180] For example, the memory 12 and the processor 11 may be integrated or separate.

[0181] 7, the device 10 further includes a transceiver 13, which is configured to receive and / or transmit signals. For example, the processor 11 is configured to control the transceiver 13 to receive and / or transmit signals.

[0182] In the solution, the apparatus 10 is configured to implement the operations performed by the terminal device in the above method embodiments.

[0183] For example, the processor 11 is configured to execute computer programs or instructions stored in the memory 12 to implement the relevant operations performed by the terminal device in the method embodiments described above, for example, the methods performed by the terminal device in the embodiments shown in Figure 3 or Figure 4 are implemented.

[0184] In another solution, the apparatus 10 is configured to implement the operations performed by the network devices in the above-mentioned method embodiments.

[0185] For example, the processor 11 is configured to execute computer programs or instructions stored in the memory 12 to implement the relevant operations performed by the network device in the method embodiments described above, for example, the methods performed by the network device in the embodiments shown in FIG.

[0186] The present application also provides a computer-readable storage medium for storing computer instructions that, when executed on a computer, perform the operations and / or procedures performed by a terminal device or a network device in the method embodiments of the present application.

[0187] The present application further provides a computer program product, which includes computer program code or instructions, which, when executed on a computer, perform the operations and / or procedures performed by a terminal device or a network device in the method embodiments of the present application.

[0188] The present application also provides a chip, the chip including a processor, a memory configured to store a computer program provided separately from the chip, the processor configured to execute the computer program stored in the memory, thereby performing the operations and / or processes performed by the terminal device or the network device in any of the method embodiments.

[0189] Furthermore, the chip may further include a communication interface. The communication interface may be an input / output interface, an interface circuit, etc. Furthermore, the chip may further include a memory.

[0190] Moreover, the present application further provides, in an embodiment of the present application, a communication system including the terminal device and the network device.

[0191] It should be understood that the processor in the embodiments of the present application may be an integrated circuit chip and have signal processing functions. In one implementation process, the steps in the above method embodiments can be implemented by using a hardware integrated logic circuit in the processor or by using instructions in the form of software. The processor may be a central processing unit (CPU), or may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), another programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application may be directly presented as being performed and completed by a hardware encoding processor, or may be performed and completed by a combination of hardware and software modules in the encoding processor. The software modules may be located in a mature storage medium in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, or a register. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps in the above-mentioned method in combination with the processor's hardware.

[0192] The memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory is a random access memory (RAM) and is used as an external cache. By way of example and not limitation, various forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM), and direct rambus random access memory (direct rambus RAM, DRRAM).

[0193] It should be noted that where the processor is a general purpose processor, a DSP, an ASIC, an FPGA or another programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, the memory (storage module) may be integrated into the processor.

[0194] Note that memory as described herein is intended to include, without being limited to, these and any other suitable types of memory.

[0195] Those skilled in the art will understand that, with reference to the examples described in the embodiments disclosed herein, the units and steps of the algorithms can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether a function is executed by hardware or software depends on a specific application and the design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but the implementation should not be considered to exceed the scope of the present application. Those skilled in the art can clearly understand that for the purpose of convenient and concise description, the detailed work processes of the above-mentioned system, device, and unit can be referred to the corresponding processes in the above-mentioned method embodiments. The details will not be described again in this specification. In some embodiments provided in this application, it should be understood that the disclosed system, device, and method can be implemented in other ways. For example, the described device embodiment is merely an example. For example, the division into units is merely a logical division of functions, and may be other divisions in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some functions may be ignored or not performed. Moreover, the mutual couplings or direct couplings or communication connections shown or described may be implemented through some interfaces. Indirect couplings or communication connections between devices or units may be implemented in electrical, mechanical, or other forms. Units described as separate parts may or may not be physically separate, and parts shown as units may or may not be physical units, and may be in one location or distributed across multiple network units. Some or all of the units may be selected based on the actual requirements for achieving the objectives of the solutions of the embodiments. Moreover, the functional units in the embodiments of the present application may be integrated into one processing unit, each unit may exist physically independently, or two or more units may be integrated into one unit.

[0196] When the function is implemented in the form of a software functional unit and sold or used as an independent product, the function may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be essentially implemented in the form of a software product, or the part or part that contributes to the current technology of the technical solution. The computer software product is stored in a storage medium and includes some instructions for instructing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. The aforementioned storage medium includes any medium that can store program code, such as a USB flash drive, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

[0197] It should be understood that the term "embodiment" referred to throughout this specification means that the particular features, structures, or characteristics associated with this embodiment are included in at least one embodiment of the present application. Thus, the embodiments throughout this specification do not necessarily refer to the same embodiment. Also, these particular features, structures, or characteristics may be combined in one or more embodiments by using any suitable method.

[0198] It should be further understood that ordinal numbers such as "first" and "second" referred to in the embodiments of the present application are used to distinguish between multiple objects, and are not used to limit the size, content, order, time sequence, priority, importance, etc., of multiple objects. For example, the first information and the second information do not indicate that the amount, content, priority, importance, etc. of information are different.

[0199] It should be further understood that in this application, "at least one" means one or more, and "a plurality of" means two or more. "At least one" or similar expressions refer to one item or a plurality of items, i.e., any combination of these items, including any combination of single items or multiple items. For example, at least one of a, b, or c refers to a, b, c, a and b, a and c, b and c, or b and c.

[0200] It should be further understood that expressions similar to "an item includes one or more of the following: A, B, and C" used in this application generally mean that the item can be any of A, B, C, A and B, A and C, B and C, A, B, and C, A and A, A, A, A, and A, A, A, and B, A, A, and C, A, B, and B, A, C, and C, B and B, B, B, and B, B, B, and C, C and C, C, C, and C, and other combinations of A, B, and C. In the preceding description, three elements A, B, and C are used as examples to describe any case of an item. If the expression "the item includes at least one of the following: A, B, …, and X" is used, in other words, if the expression contains more elements, cases to which the item applies can be obtained according to the above rules.

[0201] It should be understood that the term "and / or" in this specification describes only an association relationship between associated objects and represents that three relationships may exist. For example, A and / or B may represent three cases: when only A exists, when both A and B exist, and when only B exists. A and B may be singular or plural. The character " / " usually indicates an "or" relationship between associated objects. For example, A / B indicates A or B.

[0202] In the embodiment of the present application, it should be further understood that "B corresponding to A" represents that B is associated with A and B can be determined based on A. However, it should be further understood that determining B based on A does not mean that B is determined based only on A. B can alternatively be determined based on A and / or other information.

[0203] The above description is merely a specific implementation form of the present application, and is not intended to limit the scope of protection of the present application. Any variations or replacements that can be easily thought of by those skilled in the art within the technical scope disclosed in this application shall be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the scope of protection of the claims. [Explanation of symbols]

[0204] 10. Communications Equipment 11 Processors 12. Memory 13 Transceiver 100 Communication Systems 110 Network Devices 120 Terminal Devices 130 Terminal Devices 1000 Communication Equipment 1100 Receiver Unit 1200 Processing Units 1300 Sending Unit

Claims

1. 1. A communication method comprising: receiving first information, the first information comprising a measurement gap MG preconfigured for a terminal device; receiving second information, the second information indicating MG status information corresponding to each CC in at least one of the CCs after the CC is deactivated, the MG status information being activated or deactivated; if M CCs in the at least one CC are deactivated, activating or deactivating the MG based on M MG status information corresponding to the M deactivated CCs, where M is a positive integer; A communication method comprising:

2. activating or deactivating the MG based on M MG status information corresponding to the M deactivated CCs, 2. The method of claim 1, comprising: activating or deactivating the MG based on the M MG status information corresponding to the M deactivated CCs and N MG status information corresponding to active bandwidth portions BWP within the N CCs, where N is a positive integer, and the M CCs and the N CCs are all CCs within a carrier aggregation CA combination of the terminal device.

3. The method further comprising: receiving third information from a network device, the third information indicating MG status information respectively corresponding to each BWP in all the CCs if the BWP is an active BWP; determining, based on the third information, the N MG status information corresponding to the active BWPs in the N CCs; The method of claim 2 , further comprising:

4. The step of activating or deactivating the MG based on the M MG status information corresponding to the M deactivated CCs and N MG status information corresponding to active bandwidth portions BWP in the N CCs, 4. The method of claim 3, further comprising: deactivating the MG if all of the M MG status information corresponding to the M deactivated CCs are deactivated and all of the N MG status information corresponding to the active BWPs in the N CCs are deactivated.

5. When a first CC covers only a first MO, the second information indicates that after the first CC is deactivated, MG status information corresponding to the first CC is deactivated, the first MO is a serving cell MO corresponding to the first CC, and the first CC is any CC within the at least one CC; or 5. The method according to claim 1, wherein if a first CC does not cover any MO, the second information indicates that after the first CC is deactivated, MG status information corresponding to the first CC is deactivated.

6. transmitting first information to a terminal device, the first information comprising a measurement gap MG preconfigured for the terminal device; determining second information, the second information indicating MG status information corresponding to each CC in at least one of the CCs after the CC is deactivated, and the MG status information is activated or deactivated; transmitting the second information to the terminal device; A communication method comprising:

7. The method further comprising:

7. The method of claim 6, further comprising: transmitting third information to the terminal device, the third information indicating MG status information corresponding to each bandwidth portion BWP in all CCs in a carrier aggregation CA combination of the terminal device if the BWP is an active BWP.

8. The step of determining second information, the second information indicating MG status information corresponding to each CC in at least one CC after the CC is deactivated, and the MG status information is activated or deactivated, determining the second information when a first CC covers only a first MO, the second information indicating that after the first CC is deactivated, MG status information corresponding to the first CC is deactivated, the first MO is a serving cell MO corresponding to the first CC, and the first CC is any CC within the at least one CC; or determining the second information if the first CC does not cover any MO, the second information indicating that after the first CC is deactivated, MG status information corresponding to the first CC is deactivated; The method according to claim 6 or 7, comprising:

9. receiving second information, the second information indicating S MOs to be measured corresponding to each CC among P CCs among L component carriers CC, S being 0 or S being a positive integer, the S MOs being some or all of one or more MOs that need to be measured by the terminal device, the L CCs all being CCs in a carrier aggregation CA combination of the terminal device, L being an integer greater than 1; or the second information indicating Q MOs corresponding to each BWP among P CCs among L CCs, Q being 0 or Q being a positive integer, the Q MOs being some or all of one or more MOs; activating or deactivating a measurement gap MG based on the second information if M CCs among the L CCs are deactivated, where M is a positive integer less than L; A communication method comprising:

10. The method further comprising: receiving first configuration information, the first configuration information being for configuring the one or more MOs for the terminal device; receiving first information, the first information comprising the measurement gap management group configured for the terminal device; The method of claim 9 , further comprising:

11. The step of activating or deactivating an MG based on the second information includes a step of determining a first MO group based on the second information, the first MO group comprising all MOs corresponding to BWPs whose corresponding MG status information is deactivated in active BWPs among N CCs, the N CCs being some or all of the activated CCs among the P CCs, and N being a positive integer; determining a second MO group, the second MO group comprising MOs other than a first MO corresponding to each CC in the M CCs in the one or more MOs, the first MO corresponding to a first CC being a serving cell MO corresponding to the first CC, and the first CC being any CC in the M CCs; deactivating the MG if the MO in the first MO group and the MO in the second MO group are the same; The method according to claim 9 or 10, comprising:

12. The method further comprising: receiving third information, the third information indicating MG status information corresponding to each bandwidth portion BWP in the L CCs when the BWP is an active BWP, and the MG status information is activated or deactivated; determining a BWP whose corresponding MG status information is deactivated among the N active BWPs in the N CCs based on the third information; 12. The method of claim 9, further comprising:

13. determining second information, the second information indicating S MOs to be measured corresponding to each CC in P CCs in L component carriers CC, S being 0 or S being a positive integer, the S MOs being some or all of one or more MOs that need to be measured by the terminal device, the L CCs all being CCs in a carrier aggregation CA combination of the terminal device, L being an integer greater than 1, or the second information indicating Q MOs corresponding to each BWP in P CCs in L CCs, Q being 0 or Q being a positive integer, the Q MOs being some or all of one or more MOs; transmitting the second information to the terminal device; A communication method comprising:

14. The method further comprising: transmitting first information to the terminal device, the first information comprising a measurement gap management group (MG) configured for the terminal device; sending first configuration information to the terminal device, the first configuration information being for configuring the one or more MOs for the terminal device; The method of claim 13, further comprising:

15. The method further comprising: The method according to claim 13 or 14, further comprising a step of transmitting third information to the terminal device, the third information indicating MG status information corresponding to each bandwidth portion BWP in the L CCs when the BWP is an active BWP, and the MG status information is activated or deactivated.

16. A communications device comprising modules configured to carry out the method of any one of claims 1 to 5, 6 to 8, 9 to 12 or 13 to 15.

17. A communications device comprising at least one processor and at least one memory, the at least one memory being configured to store a computer program or instructions, and the at least one processor being configured to execute the computer program or instructions in the memory, to enable the device to perform the method of any one of claims 1 to 5, or to enable the device to perform the method of any one of claims 6 to 8, or to enable the device to perform the method of any one of claims 9 to 12, or to enable the device to perform the method of any one of claims 13 to 15.

18. A computer readable storage medium having stored thereon computer instructions which, when executed on a computer, cause the method of any one of claims 1 to 5 to be performed, the method of any one of claims 6 to 8 to be performed, the method of any one of claims 9 to 12 to be performed, or the method of any one of claims 13 to 15 to be performed.

19. 1. A computer program product comprising computer program code which, when run on a computer, performs the method of any one of claims 1 to 5, the method of any one of claims 6 to 8, the method of any one of claims 9 to 12, or the method of any one of claims 13 to 15.

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