Communication method and apparatus

Abstract

The present application discloses a communication method and apparatus. The method comprises: a terminal receiving configuration information of a serving cell, wherein the configuration information is used for indicating that the serving cell comprises M downlink carriers, and M is an integer greater than 1; and when the performance of N downlink carriers among the M downlink carriers satisfies a reporting condition of a first event, sending first information, wherein the first information is used for indicating a measurement result of the first event, and N is a positive integer not greater than M. The method can prevent the terminal from frequently reporting the measurement result of the first event, resulting in frequent triggering of the first event.

Description

Communication method and apparatus

[0001] The present application claims priority to the Chinese patent application No. 202410783087.8, filed on June 17, 2024, with the State Intellectual Property Office of China, and the Chinese patent application No. 202410783087.8 has the title of “Communication method and apparatus”, the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the field of communication technology, in particular to a communication method and apparatus. BACKGROUND

[0003] In the existing communication system, one cell configures one downlink carrier and one uplink carrier to realize uplink-downlink pairing.

[0004] Currently, a terminal determines whether to trigger a measurement reporting event based on the performance of a primary serving cell. Taking cell switching as an example, the terminal will trigger a measurement reporting event when the performance of the primary cell is poor, and send the measurement result of cell switching to the base station so that the base station can perform cell switching on the terminal, wherein the cell performance is the performance of the downlink carrier configured by the cell. In the above method, the terminal frequently reports the measurement result of cell switching, resulting in frequent cell switching. SUMMARY

[0005] The present application discloses a communication method and apparatus, which can avoid the terminal from frequently reporting the measurement result of the first event, resulting in frequent triggering of the first event.

[0006] The present application will be described from different aspects below, and it should be understood that the implementation and advantages of the different aspects below can be referred to each other.

[0007] In a first aspect, the present application discloses a communication method, which can be executed by a communication apparatus, the communication apparatus can be a terminal or a module (for example, a chip) of the terminal, and the method can include: receiving configuration information of a serving cell, the configuration information being used to indicate that the serving cell includes M downlink carriers, M being an integer greater than 1; when the performance of N downlink carriers in the M downlink carriers meets the reporting condition of a first event, sending first information, the first information being used to indicate the measurement result of the first event, N being a positive integer not greater than M.

[0008] In the embodiments of the present application, the serving cell configures multiple downlink carriers, and the terminal can determine whether to report the measurement result of the first event based on the performance of at least one downlink carrier in the multiple downlink carriers of the serving cell. This method can avoid the terminal from frequently reporting the measurement result of the first event and frequently triggering the first event, and can avoid unnecessary measurement reporting to reduce the overhead of measurement reporting.

[0009] In this application, the downlink carrier can also be referred to as a receiving carrier, and the uplink carrier can be referred to as a sending carrier.

[0010] In combination with the first aspect, in a possible implementation, the reporting condition comprises at least one of the following: the performance of the N downlink carriers is better than a first threshold; or, the performance of the N downlink carriers is worse than a second threshold; or, the performance of the neighboring cell is better than the performance of the N downlink carriers; or, the performance of the N downlink carriers is worse than a third threshold and the performance of the neighboring cell is better than a fourth threshold.

[0011] In combination with the first aspect, in a possible implementation, the performance of the N downlink carriers is at least one of the following: the performance of each of the N downlink carriers, or the average performance of the N downlink carriers, or the performance of at least one of the N downlink carriers; and the performance of the neighboring cell is at least one of the following: the performance of each of the downlink carriers in the neighboring cell, or the average performance of the downlink carriers in the neighboring cell, or the performance of at least one of the downlink carriers in the neighboring cell.

[0012] In the embodiments of this application, the terminal can measure the N downlink carriers; based on the measurement results of the N downlink carriers, the performance of the N downlink carriers is calculated, where the performance of the N downlink carriers can refer to the performance of each of the N downlink carriers, or the average performance of the N downlink carriers, or the performance of at least one of the N downlink carriers; further, the performance of the N downlink carriers is compared with a threshold (such as the first threshold or the second threshold), or the performance of the neighboring cell is compared with the performance of the N downlink carriers, or the performance of the neighboring cell and the performance of the N downlink carriers are compared with corresponding thresholds respectively, to determine whether the performance of the N downlink carriers meets the reporting condition of the first event; when the performance of the N downlink carriers meets the reporting condition of the first event, the first information is sent to the network device. In this method, the terminal determines whether to perform the related measurement of the first event and report the measurement result based on the performance of multiple downlink carriers, which can avoid the terminal from frequently reporting the measurement result and frequently triggering the first event, and can avoid unnecessary reporting to reduce the overhead of measurement reporting.

[0013] In combination with the first aspect, in a possible implementation, the first event comprises at least one of the following: cell switching; or radio link management; or radio resource management; or radio link failure (RLF); or radio link recovery.

[0014] In the embodiments of this application, the terminal reduces the sending of the first information, and avoids the terminal from frequently performing cell switching / radio resource management / radio link failure, which leads to poor communication performance.

[0015] In the embodiments of the present application, if the first event is cell switching, the terminal reduces the reporting of test results of cell switching, which can reduce the number of switching cells by the network device, thereby avoiding frequent cell switching from causing service interruption and communication performance impairment; if the first event is radio resource management, the number of radio resource management can be reduced, and the resource management efficiency can be improved; if the first event is radio link management, frequent radio link management can be avoided, and radio link communication failure can be avoided; if the first event is radio link failure, the operation of frequent re-establishment of radio link failure can be avoided; if the first event is radio link recovery, the operation of frequent radio link communication recovery can be avoided.

[0016] With reference to the first aspect, in a possible implementation, the method further includes: receiving second information, the second information being used to indicate the value of N, or the second information being used to indicate carrier identifiers corresponding to the N downlink carriers.

[0017] In the embodiments of the present application, the second information can be signaling sent by the network device to the terminal, and the network device indicates which downlink carriers are used by the terminal as the N downlink carriers.

[0018] With reference to the first aspect, in a possible implementation, the value of N is predefined.

[0019] Optionally, when the second indication is used to indicate the value of N or the value of N is predefined, the terminal can determine the N downlink carriers based on a preset rule and the value of N. For example, the M downlink carriers have corresponding priorities, and the preset rule is to determine the carriers with the top N priorities of the M downlink carriers as the N downlink carriers.

[0020] Optionally, the carrier identifiers of the M downlink carriers can be determined based on the priorities, for example, the carrier identifier of the downlink carrier with a higher priority is smaller.

[0021] With reference to the first aspect, in a possible implementation, the performance includes at least one of the following: reference signal receiving power (RSRP); or reference signal receiving quality (RSRQ); or reference signal-signal to interference plus noise ratio (RS-SINR).

[0022] In the embodiments of the present application, the carrier performance can be represented by RSRP or a value calculated based on RSRP, can be represented by RSRQ or a value calculated based on RSRQ, can be represented by RS-SINR or a value calculated based on RS-SINR, or can be represented by a value calculated based on any two of RSRP, RSRQ and RS-SINR. The present application does not limit this.

[0023] In a second aspect, the present application discloses a communication method, which can be executed by a communication device, the communication device can be a network device or a module (for example, a chip) in the network device, the method can include: sending configuration information of a serving cell, the configuration information being used to indicate that the serving cell includes M downlink carriers, M being an integer greater than 1; receiving first information, the first information being used to indicate a measurement result of a first event, N being a positive integer not greater than M, the first information being related to performances of N downlink carriers in the M downlink carriers, the performances of the N downlink carriers satisfying a reporting condition of the first event.

[0024] In combination with the second aspect, in a possible implementation, the reporting condition includes at least one of the following: the performances of the N downlink carriers are better than a first threshold; or, the performances of the N downlink carriers are worse than a second threshold; or, a performance of a neighbor cell is better than the performances of the N downlink carriers; or, the performances of the N downlink carriers are worse than a third threshold and the performance of the neighbor cell is better than a fourth threshold.

[0025] In combination with the second aspect, in a possible implementation, the performances of the N downlink carriers are at least one of the following: a performance of each of the N downlink carriers, or an average performance of the N downlink carriers, or a performance of at least one of the N downlink carriers; and the performance of the neighbor cell is at least one of the following: a performance of each of downlink carriers in the neighbor cell, or an average performance of downlink carriers in the neighbor cell, or a performance of at least one of downlink carriers in the neighbor cell.

[0026] In combination with the second aspect, in a possible implementation, the first event includes at least one of the following: cell switching; or, radio link management; or, radio resource management; or, radio link failure; or, radio link recovery.

[0027] In combination with the second aspect, in a possible implementation, the method further includes: sending second information, the second information being used to indicate a value of N, or the second information being used to indicate carrier identities corresponding to the N downlink carriers.

[0028] In combination with the second aspect, in a possible implementation, the value of N is predefined.

[0029] With reference to the second aspect, in a possible implementation form of the second aspect, the performance comprises at least one of: RSRP; or, RSRQ; or, RS-SINR.

[0030] In a third aspect, the present disclosure provides a communication apparatus, which can be a terminal or a chip / circuit therein, or a network device or a chip / circuit therein. The communication apparatus is configured to perform the method in the first aspect or any possible implementation form of the first aspect. The communication apparatus comprises units configured to perform the method in the first aspect or any possible implementation form of the first aspect.

[0031] In a fourth aspect, the present disclosure provides a communication apparatus, which can be a terminal or a chip / circuit therein, or a network device or a chip / circuit therein. The communication apparatus is configured to perform the method in the second aspect or any possible implementation form of the second aspect. The communication apparatus comprises units configured to perform the method in the second aspect or any possible implementation form of the second aspect.

[0032] In a fifth aspect, the present disclosure provides a communication apparatus, which can be a terminal or a chip / circuit therein, or a network device or a chip / circuit therein. The communication apparatus is configured to perform the method in the third aspect or any possible implementation form of the third aspect. The communication apparatus comprises units configured to perform the method in the third aspect or any possible implementation form of the third aspect.

[0033] In the third aspect or the fourth aspect or the fifth aspect, the communication apparatus can comprise a transceiver unit and a processing unit. The specific description of the transceiver unit and the processing unit can also be referred to the apparatus embodiment shown below. The beneficial effects of the third aspect to the fifth aspect can be referred to the foregoing description of the first aspect to the second aspect, which will not be described here.

[0034] In a sixth aspect, the present disclosure provides a communication apparatus, which can comprise a processor and an interface circuit, and the processor and the interface circuit are connected. The interface circuit is configured to interact (or transceive or input and output) information or data, and the processor is configured to run program instructions, so that the communication apparatus performs the method described in the first aspect or the second aspect or any possible implementation form of any aspect thereof. The interface circuit can be a communication interface or a transceiver. The transceiver can be a radio frequency module in the communication apparatus, or a combination of a radio frequency module and an antenna, or an input and output interface of a chip or circuit.

[0035] In a seventh aspect, the present disclosure provides a readable storage medium, which stores program instructions, and when the program instructions are run on a computer, the computer performs the method described in the first aspect or the second aspect or any possible implementation form of any aspect thereof.

[0036] In an eighth aspect, the present application provides a program product comprising program instructions which, when executed, cause the method described in the first aspect, or any possible implementation of the second aspect or any of its aspects, to be performed.

[0037] In a ninth aspect, the present application provides an apparatus which can be implemented in the form of a chip or a device. The apparatus comprises a processor. The processor is configured to read and execute program stored in a memory, so as to perform the information interaction method provided in the first aspect, or one or more of the second aspects, or one or more of any possible implementation of any of the aspects. Optionally, the apparatus further comprises the memory, and the memory is connected to the processor through a circuit. Further optionally, the apparatus further comprises a communication interface, and the processor is connected to the communication interface. The communication interface is configured to receive information to be processed, and the processor acquires the information from the communication interface, processes the information, and outputs the processing result through the communication interface. The communication interface can be an input / output interface.

[0038] In a possible implementation, the processor and the memory can be physically independent units, or the memory can be integrated with the processor.

[0039] In a tenth aspect, the present application provides a communication system, which comprises a communication device. The communication device is configured to perform the method described in the first aspect, or the second aspect, or any possible implementation of any of the aspects.

[0040] The technical effects achieved by the above aspects can be referred to each other or the beneficial effects shown in the method embodiments below, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0041] FIG. 1 is a schematic diagram of a system architecture of a communication system according to an embodiment of the present application;

[0042] FIGS. 2A to 2F are schematic diagrams of a communication system according to an embodiment of the present application;

[0043] FIG. 3 is a flowchart of a communication method according to an embodiment of the present application;

[0044] FIGS. 4A and 4B are schematic diagrams of numbering of carrier identifiers according to an embodiment of the present application;

[0045] FIG. 5 is a flowchart of another communication method according to an embodiment of the present application;

[0046] FIG. 6 is a flowchart of still another communication method according to an embodiment of the present application;

[0047] FIG. 7 is a flow diagram of another communication method according to an embodiment of the present application;

[0048] FIG. 8 is a schematic diagram of a structure of a communication apparatus according to an embodiment of the present application;

[0049] FIG. 9 is a schematic diagram of another structure of a communication apparatus according to an embodiment of the present application;

[0050] FIG. 10 is a schematic diagram of yet another structure of a communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

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

[0052] In the description of the present application, the terms "first", "second", etc. are only used to distinguish different objects, and do not limit the quantity and execution order, and the terms "first", "second", etc. do not necessarily mean different. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device, etc. including a series of steps or units, is not limited to the listed steps or units, but can optionally include other steps or units not listed, etc., or can optionally include other steps or units inherent to the process, method, product or device, etc.

[0053] In the description of the present application, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this document only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean: A alone, A and B exist at the same time, and B alone. In addition, "at least one item", "one or more items" or similar expressions mean any combination of these items, including any combination of single item or multiple items. For example, at least one of a, b, or c, can mean: a, b, c; a and b; a and c; b and c; or a and b and c. Where a, b, c can be single or multiple.

[0054] In the description of the present application, the words "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design solution described as "exemplary", "for example" or "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design solutions. Rather, the use of "exemplary", "for example" or "for example" is intended to present the relevant concept in a specific manner.

[0055] It can be understood that, in the description of the present application, "when", "if" and "whether" all refer to the device making corresponding processing under certain objective conditions, not limited in time, and do not require the device to have a judgment action when it is implemented, nor does it mean that there are other limitations. Among them, the device making corresponding processing under certain objective conditions includes: meeting the objective condition, that is, being able to make the corresponding processing; or meeting the objective condition and other conditions to make the corresponding processing.

[0056] In the present application, "at the same time" can be understood as at the same time point, also can be understood as in a period of time, also can be understood as in the same cycle, which can be understood in combination with the context.

[0057] In the present application, the element expressed by the singular is intended to represent "one or more", not "one and only one", unless otherwise specified.

[0058] In addition, the terms "system" and "network" are often used interchangeably in this paper.

[0059] It can be understood that, in the embodiments of the present application, "A corresponds to B", "A and B correspond", "A corresponds to B" or the like, means that B is associated with A, and B can be determined according to A. Determining B according to A does not mean that B is determined only according to A, but also can be determined according to A and / or other information.

[0060] At present, the terminal determines whether to trigger a measurement reporting event based on the performance of the primary service cell. For example, the terminal will trigger a measurement reporting event when the performance of the primary cell is poor, so as to perform cell switching.

[0061] The following exemplary describes the event of triggering reporting by the existing terminal.

[0062] The following takes conditional handover (CHO) as an example for illustration, wherein the CHO can include A3 event and A5 event. Specifically, the base station can configure the information of cell reselection in the system information, such as system information block 2 (SIB2) indicating cell reselection common parameters, SIB3 indicating same frequency neighbor cell reselection information, SIB4 indicating different frequency neighbor cell reselection information, and SIB5 indicating different system cell reselection information; and configure the parameters related to the reporting of the event in the reporting configuration, such as A3 event indicating offset (such as a3-offset), A5 event indicating threshold 1 (such as a5-Threshold1), A5 event indicating threshold 2 (such as a5-Threshold2) and the like.

[0063] (1) A3 event means that the offset of the neighbor cell is better than the special cell SpCell.

[0064] The user equipment (UE) can consider that the entering condition of the A3 event is met when the following defined inequality A3-1 is met; consider that the leaving condition of the A3 event is met when the following defined inequality A3-2 is met. It should be understood that the data of SpCell is used for Mp, Ofp and Ocp, the cell triggering the event has the reference signal indicated in the measObjectNR related to the event, which can be different from the NR SpCell measObjectNR. The two inequalities are as follows:

[0065] Inequality A3-1 (entry condition): Mn+Ofn+Ocn-Hys>Mp+Ofp+Ocp+Off;

[0066] Inequality A3-2 (exit condition): Mn+Ofn+Ocn+Hys<Mp+Ofp+Ocp+Off.

[0067] Wherein, Mn is the measurement result of the neighbor cell, without considering any offset. Ofn is the measurement object specific offset of the reference signal of the neighbor cell (i.e. offsetMO defined in the measObjectNR corresponding to the neighbor cell). Ocn is the cell specific offset of the neighbor cell (i.e. cellIndividualOffset defined in the measObjectNR corresponding to the neighbor cell frequency, or cellIndividualOffset defined in the reportConfigNR), which is set to zero if the neighbor cell is not configured. Mp is the measurement result of the SpCell, without considering any offset. Ofp is the measurement object specific offset of the SpCell (i.e. offsetMO defined in the measObjectNR corresponding to the SpCell). Ocp is the cell specific offset of the SpCell (i.e. cellIndividualOffset defined in the measObjectNR corresponding to the SpCell), which is set to 0 if the SpCell is not configured. Hys is the hysteresis parameter of this event (i.e. hysteresis defined in the reportConfigNR for this event). Off is the offset parameter of this event (i.e. a3-Offset defined in the reportConfigNR for this event).

[0068] Optionally, the inequality A3-1 can also be: Mn+Ofn+Ocn-Hys≥Mp+Ofp+Ocp+Off; and the inequality A3-2 can also be: Mn+Ofn+Ocn+Hys≤Mp+Ofp+Ocp+Off.

[0069] For RSRP, Mn, Mp are expressed in dBm; for RSRQ and RS-SINR, in dB. Units of Ofn, Ocn, Ofp, Ocp, Hys, Off are in dB.

[0070] (2) Event A5 refers to: SpCell worsens than threshold 1 (Thresh1), and neighbor cell improves than threshold 2 (Thresh2).

[0071] The UE can consider the entering condition of this event is satisfied when both inequality A5-1 and inequality A5-2 are satisfied; consider the leaving condition of this event, i.e. at least one of the following two conditions is satisfied, when inequality A5-3 or inequality A5-4 is satisfied. It should be understood that the parameters of the reference signals of the cell triggering the event are indicated in the measObjectNR related to the event, which can be different from the measObjectNR of the NR SpCell. Wherein, each inequality is shown as follows:

[0072] Inequality A5-1 (Entering Condition 1): Mp + Hys < Thresh 1;

[0073] Inequality A5-2 (Entering Condition 2): Mn + Ofn + Ocn - Hys > Thresh2;

[0074] Inequality A5-3 (Leaving Condition 1): Mp - Hys > Thresh1:

[0075] Inequality A5-4 (Leaving Condition 2): Mn + Ofn + Ocn + Hys < Thresh 2.

[0076] Wherein, Mp is the measurement result of the NR SpCell, without considering any bias. Mn is the measurement result of the neighbor cell, without considering any bias. Ofn is the measurement object specific offset of the neighbor cell (i.e. offsetMO defined in the measObjectNR corresponding to the neighbor cell). Ocn is the cell specific offset of the neighbor cell (i.e. cellIndividualOffset defined in the measObjectNR corresponding to the neighbor cell, or cellIndividualOffset defined in the reportConfigNR), which is set to zero if the neighbor cell is not configured. Hys is the hysteresis parameter of this event (i.e. hysteresis defined in the reportConfigNR for this event). Thresh1 is the threshold parameter of this event (i.e. a5-Threshold1 defined in the reportConfigNR for this event). Thresh2 is the threshold parameter of this event (i.e. a5-Threshold2 defined in the reportConfigNR for this event).

[0077] For RSRP, Mn, Mp are expressed in dBm; for RSRQ and RS-SINR, in dB. Ofn, Ocn, Hys are in units of dB. Thresh1 has the same unit as Mp. Thresh2 has the same unit as Mn.

[0078] In the prior art communication system, one cell configures one downlink carrier and one uplink carrier to realize uplink-downlink pairing. Optionally, the cell also configures a supplementary uplink (SUL). That is, the cell performance in the CHO above refers to the performance of one downlink carrier in the cell, and the terminal determines whether to trigger the measurement reporting event based on the performance of one downlink carrier in the primary serving cell. The terminal often reports the measurement results frequently.

[0079] In view of the above, the present application provides a communication method and device. In the method, the network device configures multiple downlink carriers for a serving cell, and the terminal sends the measurement results of a first event to the network device when the performance of part or all of the multiple downlink carriers meets the reporting condition. The method can trigger the measurement reporting event based on the performance of multiple downlink carriers, and can avoid frequent reporting of measurement results and reduce transmission resource overhead. For example, if the first event is cell switching, the above method can avoid frequent cell switching to cause service interruption and communication performance impairment.

[0080] Based on the above, in order to better understand the communication method and related device proposed in the present application, the system architecture of the embodiments of the present application is described below.

[0081] The technical solutions of the present application can be applied to a 5th generation (5G) or new radio (NR) system, a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a wireless local area network (WLAN) system, a satellite communication system, a future communication system such as a 6th generation (6G) mobile communication system, or a converged system of multiple systems, and the like. The technical solutions provided in the present application can also be applied to device to device (D2D) communication, vehicle-to-everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and an internet of things (IoT) communication system or other communication systems.

[0082] Please refer to FIG. 1, which is a schematic diagram of a system architecture of a communication system provided in an embodiment of the present application.

[0083] As shown in FIG. 1, the communication system 10 can include a network device 101 and a terminal 102.

[0084] In an embodiment of the present application, the network device 101 can send configuration information of a serving cell to the terminal 102, the configuration information being used to indicate that the serving cell includes M downlink carriers, M being an integer greater than 1; and the terminal 102 can send first information when the performance of N downlink carriers of the M downlink carriers meets a reporting condition of a first event, the first information being used to indicate a measurement result of the first event, N being a positive integer not greater than M. For example, the specific process can be referred to the embodiments below, which will not be expanded here.

[0085] The network device 101 can be an entity for transmitting or receiving signals, and can be a device for communicating with the terminal 102. The network device can be a base station (BTS) in a global system for mobile communications (GSM) system or a code division multiple access (CDMA) system, a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, an evolved NodeB (eNB or eNodeB) in an LTE system, a radio controller in a cloud radio access network (CRAN) scenario, or a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a 5G network, or a network device in a future evolved PLMN network, and the like. The network device can also be an access node or other network device in a future wireless communication system, and the embodiments of the present application are not limited thereto. The network device can be a device in a wireless network, such as a RAN node that accesses the terminal 102 to the wireless network. Currently, some examples of the RAN node are: a base station, a next-generation base station gNB, a transmission reception point (TRP), a transmission point (TP), an evolved Node B (eNB), a home base station, a baseband unit (BBU), or an access point (AP) in a WiFi system, and the like. In one network structure, the network device can include a central unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node. In an O-RAN system, the CU can also be referred to as an O-CU, and the DU can also be referred to as an O-DU.

[0086] The terminal 102 is a user-side entity for receiving or transmitting signals, and is mainly used to realize the function of wireless communication with the network device 101.

[0087] For example, the terminal 102 can be an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The terminal 102 can also be a mobile phone, a cellular telephone, a cordless telephone, a session initiation protocol (SIP) phone, a tablet, a computer with wireless transceiver functionality, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device having wireless communication functionality, a computing device, or other processing devices connected to a wireless modem, an in-vehicle device, a wireless terminal in self driving, a wireless terminal in telemedicine or telehealth services, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a wearable device (e.g., a smart watch, a smart bracelet, a pedometer, etc.), a terminal in a 5G network, or a terminal in a future evolved public land mobile network (PLMN), etc. The embodiments of the present application do not limit the type of terminal 102. The terminal 102 can be deployed on land, including indoors or outdoors, handheld, wearable, or in-vehicle, can be deployed on water (e.g., a ship, etc.), can be deployed in the air (e.g., an airplane, a balloon, etc.), and a non-terrestrial network (NTN) such as a satellite, etc. In the embodiments of the present application, the terminal 102 can be a legacy UE, can be an RB-level partial frequency hopping (RPFS) UE supporting sounding reference signal (SRS) coverage and capacity enhancement, or can be another UE. The present application does not limit the type of terminal 102. The legacy UE refers to a user equipment supporting existing mechanisms, for example, a user equipment supporting release-15 or release-16.

[0088] In the embodiments of the present application, the terminal 102 or the network device 101 comprises a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer comprises hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as a main memory). The operating system can be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address book, word processing software, and instant messaging software. Moreover, the embodiments of the present application do not particularly limit the specific structure of the execution subject of the method provided by the embodiments of the present application, as long as the execution subject can communicate according to the method provided by the embodiments of the present application by running a program in which the code of the method provided by the embodiments of the present application is recorded. For example, the execution subject of the method provided by the embodiments of the present application can be the terminal 102 or the network device 101, or a functional module in the terminal 102 or the network device 101 that can invoke and execute the program.

[0089] It should be noted that the number and type of the terminal 102 included in the system architecture shown in FIG. 1 are merely examples, and the embodiments of the present application are not limited thereto. For example, more or fewer terminals 102 that communicate with the network device 101 can also be included, and for the sake of brevity, they are not described one by one in the drawings.

[0090] In addition, in the system architecture shown in FIG. 1, although the network device 101 and the terminal 102 are shown, the application scenario can not be limited to including the network device 101 and the terminal 102, for example, a core network device or a device for carrying a virtualized network function can also be included, wherein the core network device communicates with the network device 101 and the terminal 102.

[0091] For example, the communication system shown in FIG. 1 is introduced through FIGS. 2A to 2F.

[0092] (1) The above-mentioned communication system 10 can be a system structure of satellite communication, wherein the satellite can act as a network device 101 (for the sake of brevity, referred to as a satellite base station) or a terminal 102 (for the sake of brevity, referred to as a satellite terminal). For example, the satellite can refer to a drone, a hot air balloon, a low-orbit satellite, a medium-orbit satellite, a high-orbit satellite, or the like; the satellite can also refer to a non-ground base station or a non-ground device, etc.

[0093] For example, referring to FIG. 2A, the network device 101 is a satellite base station, and the terminal 102 is a terminal-type network element (referred to as a terminal).

[0094] The satellite base station provides communication services for the terminal. For example, the satellite base station can transmit downlink data to the terminal. The data is encoded by channel coding, and the channel-coded data is transmitted to the terminal after constellation modulation. The terminal transmits uplink data to the satellite base station. The uplink data can also be encoded by channel coding, and the encoded data is transmitted to the satellite base station after constellation modulation.

[0095] The terminal includes a smart phone, a smart watch, a tablet computer, and the like.

[0096] In another example, the satellite base station can also communicate with a base station. To distinguish, the satellite base station is referred to as a satellite terminal. Referring to FIG. 2B, the network device 101 is a base station, and the terminal 102 is a satellite terminal.

[0097] It should be understood that, as shown in FIG. 2A and FIG. 2B, the satellite can act as a base station or a terminal.

[0098] (2) The communication system 10 described above can be a satellite inter-satellite link communication system. In this system, the network device 101 and the terminal 102 are both satellites.

[0099] As shown in FIG. 2C, the system includes a satellite 1 and a satellite 2. For example, the satellite 1 is the network device 101, and the satellite 2 is the terminal 102; or the satellite 2 is the network device 101, and the satellite 1 is the terminal 102.

[0100] The system can be divided into an acquisition pointing and tracking (APT) subsystem (including an APT module and an APT transmitting / receiving module as shown in FIG. 2C) and a communication subsystem (including a communication module and a transceiving antenna as shown in FIG. 2C). The communication subsystem is responsible for inter-satellite information transmission and is the main part of the inter-satellite communication system. The APT subsystem is responsible for acquisition, pointing, and tracking between satellites to determine the direction of arrival of the incident signal, adjust the transmission wave aiming at the receiving direction for acquisition, and constantly adjust the pointing and acquisition in the entire communication process for tracking. In order to minimize the influence of attenuation and interference in the channel and at the same time require high confidentiality and transmission rate, the APT must be adjusted in real time to constantly adapt to changes. The existing communication subsystem is mostly an optical communication system, and there are also some microwave band systems, which mostly use a single high-gain antenna. The existing APT subsystem and communication subsystem are independent systems.

[0101] (3) The communication system 10 described above can be a cellular communication system.

[0102] As shown in FIG. 2D, the system can include a base station and a terminal, the network device 101 is the base station, and the terminal is a terminal (e.g., user equipment).

[0103] The terminal can be connected to the base station in a wireless manner and can access the core network through the base station. The terminal can be fixed or mobile.

[0104] In some embodiments, the terminal can access any cell managed by the base station to implement communication.

[0105] For example, the base station can include a baseband unit (BBU) and a remote radio unit (RRU). The BBU and the RRU can be placed in different places, for example, the RRU is pulled away and placed in a high traffic area, and the BBU is placed in a central machine room. The BBU and the RRU can also be placed in the same machine room. The BBU and the RRU can also be different components under one rack.

[0106] It should be noted that the cellular communication system includes but is not limited to: a narrow band-internet of things (NB-IoT), GSM, enhanced data rates for GSM evolution (EDGE), WCDMA, code division multiple access 2000 (CDMA2000), time division-synchronous code division multiple access (TD-SCDMA), LTE, and three application scenarios of the next-generation 5G mobile communication system, namely, enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), and enhanced mobile broadband (eMTC).

[0107] (4) The communication system 10 described above can be a wireless projection system.

[0108] As shown in FIG. 2E, the network device 101 can be a television, and the terminal 102 can be a mobile phone. For example, the system corresponds to application scenarios including wireless projection, VR games, data encoding and decoding in mobile phone applications, etc.

[0109] The present application can be applied to a terminal-to-terminal communication scenario, for example, an Internet of Things communication system. For example, a terminal (for example, a smart phone) establishes a network connection with a television, the smart phone transmits content to be projected onto the television to the television device, and the television device displays the content on the display screen after receiving the content transmitted by the smart phone. This scenario can also be regarded as an example of terminal-to-terminal communication, in which the smart phone and the television can both be regarded as a terminal.

[0110] It should be noted that in the system shown in FIG. 2E, the first event described above is a cell handover; or radio link management; or radio resource management; or radio link failure; or radio link recovery.

[0111] (5) The communication system 10 described above can be an integrated access and backhaul (IAB) system.

[0112] As shown in FIG. 2F, the system can include an IAB donor, an IAB node, and a user equipment. The network device 101 described above can be an IAB donor, and the terminal 102 described above can be a user equipment.

[0113] In this case, the link between the IAB donor and the IAB node is a backhaul link, and the link between the user equipment and the IAB node is an access link.

[0114] It should be noted that the product form of each device in the present application can be a dedicated network element device / module, the network device 101 described above can refer to a communication chip / module in the network device 101, and the terminal 102 described above can refer to a communication chip / module in the terminal 102, for example, a communication chip / module in a base station, a communication chip / module in a satellite, a wireless communication module / chip in a smart factory, a wireless communication module / chip in a smart grid, a wireless communication module / chip in various devices, etc.

[0115] In the embodiments of the present application, the base station and the terminal, the base station and the base station, and the terminal and the terminal can communicate through a licensed spectrum, an unlicensed spectrum, or both a licensed spectrum and an unlicensed spectrum; can communicate through a spectrum below 6 gigahertz (GHz), a spectrum above 6 GHz, or a high-frequency or terahertz spectrum; and can also communicate through a spectrum below 6 GHz and a spectrum above 6 GHz simultaneously. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0116] In combination with the system architecture described above, a communication method provided by an embodiment of the present application is described below.

[0117] Referring to FIG. 3, FIG. 3 is a flowchart of a communication method provided by an embodiment of the present application. The communication method is performed by a network-side device (such as a network device) in the embodiment of the present application, and the network-side device can also be a module (for example, a chip) in the network device. The functions performed by a terminal-side device (such as a terminal) in the embodiment of the present application can also be performed by a module (for example, a chip) in the terminal.

[0118] As shown in FIG. 3, the communication method can include the following steps.

[0119] S301: The network device sends configuration information of a serving cell to the terminal, and the configuration information is used to indicate that the serving cell includes M downlink carriers, where M is an integer greater than 1.

[0120] Correspondingly, the terminal receives the configuration information of the serving cell sent by the network device.

[0121] The serving cell can be a cell currently accessed by the terminal. When the network device manages cells including a primary cell and a secondary cell, the serving cell can be the primary cell or the secondary cell. Alternatively, the serving cell can be a cell specified by the network device.

[0122] In some embodiments, the cell (such as the serving cell) configured by the base station for the terminal includes n uplink carriers and m downlink carriers, where n is an integer greater than or equal to 0, m is a positive integer, and n+m is greater than or equal to 2. The plurality of uplink carriers form an uplink carrier resource pool, the plurality of downlink carriers form a downlink carrier resource pool, and the uplink carrier resource pool and the downlink carrier resource pool correspond to one physical cell identifier. Alternatively, the plurality of uplink carriers and the plurality of downlink carriers form a carrier resource pool, and the carrier resource pool corresponds to one physical cell identifier.

[0123] Alternatively, each carrier configuration can include a center frequency point and a carrier bandwidth, for example, a partial bandwidth part (BWP) configuration is included in the carrier configuration, such as a downlink BWP configured in a downlink carrier and an uplink BWP configured in an uplink carrier. In addition, a synchronization signal block (SSB) resource is configured in the downlink carrier, and a random access channel (RACH) resource is configured in the uplink carrier. In addition, the uplink carrier and the downlink carrier can have no fixed association relationship, for example, the network device can configure the association relationship of the uplink and downlink carriers to achieve flexible configuration and management of the uplink and downlink carriers.

[0124] S302: When the performance of the N downlink carriers of the M downlink carriers meets a reporting condition of a first event, the terminal sends first information to the network device, the first information being used to indicate a measurement result of the first event, N being a positive integer not greater than M.

[0125] Correspondingly, the network device receives the first information sent by the terminal.

[0126] Exemplarily, the reporting condition comprises at least one of the following: the performance of the N downlink carriers is better than a first threshold; or, the performance of the N downlink carriers is worse than a second threshold; or, the performance of a neighbor cell is better than the performance of the N downlink carriers; or, the performance of the N downlink carriers is worse than a third threshold and the performance of the neighbor cell is better than a fourth threshold. It should be understood that the neighbor cell can refer to a cell not accessed by the terminal, or a cell not serving the terminal, or a neighbor cell of a serving cell of the terminal.

[0127] The performance of the N downlink carriers is at least one of the following: the performance of each of the N downlink carriers, or the average performance of the N downlink carriers, or the performance of at least one of the N downlink carriers. For example, the performance of the N downlink carriers can refer to the performance of the best carrier of the N downlink carriers, or the performance of the worst carrier of the N downlink carriers.

[0128] The performance of the neighbor cell is at least one of the following: the performance of each of the downlink carriers of the neighbor cell, or the average performance of the downlink carriers of the neighbor cell, or the performance of at least one of the downlink carriers of the neighbor cell. The number of the downlink carriers of the neighbor cell is not limited in the present application. The neighbor cell can have only one downlink carrier or can include multiple downlink carriers. The performance of the neighbor cell can be the performance of the only one downlink carrier of the neighbor cell, or the performance of the best carrier or the worst carrier of the multiple downlink carriers of the neighbor cell, which is not limited in the present application.

[0129] Exemplarily, the performance comprises at least one of the following: RSRP, or RSRQ, or RS-SINR.

[0130] In one implementation, the performance of the N downlink carriers being better than the first threshold (referred to as event 1 for convenience of description) can mean that the performance of the worst performing carrier (referred to as carrier 1 for convenience of description) among the N downlink carriers is better than the first threshold. Assuming that the performance refers to RSRP, the performance of the N downlink carriers satisfying the event 1 can mean that the RSRP of the carrier 1 or a value calculated based on the RSRP of the carrier 1 by a preset formula is greater than the first threshold (referred to as inequality 1 for convenience of description). For example, the inequality 1 can be inequality A1X-1 below, the RSRP of the carrier 1 can be Ms in the inequality A1X-1, the value calculated based on the RSRP of the carrier 1 by the preset formula can be Ms-Hys, and the first threshold can be Thresh in the inequality A1X-1. Details can be found in related content in FIG. 5 below, which will not be expanded here.

[0131] In another implementation, the performance of the N downlink carriers being worse than the second threshold (referred to as event 2 for convenience of description) can mean that the performance of the best performing carrier (referred to as carrier 2 for convenience of description) among the N downlink carriers is worse than the second threshold. Assuming that the performance refers to RSRP, the performance of the N downlink carriers satisfying the event 2 can mean that the RSRP of the carrier 2 or a value calculated based on the RSRP of the carrier 2 by a preset formula is less than the second threshold.

[0132] In yet another implementation, the performance of the neighbor being better than the performance of the N downlink carriers (referred to as event 3 for convenience of description) can mean that the performance of each of the N downlink carriers is worse than the performance of any downlink carrier in the neighbor. Assuming that the performance refers to RSRP, the performance of the N downlink carriers satisfying the event 3 can mean that the RSRP of each of the N downlink carriers is less than the RSRP of any downlink carrier in the neighbor, or a value calculated by a preset formula 1 for each of the N downlink carriers is less than a value calculated by a preset formula 2 for any downlink carrier in the neighbor (referred to as inequality 3 for convenience of description).

[0133] In another implementation, the performance of the aforementioned N downlink carriers being worse than the third threshold and the performance of neighboring cells being better than the fourth threshold (for ease of description, referred to as event 4) can mean that the performance of each of the N downlink carriers is worse than the third threshold and the performance of at least one downlink carrier in a neighboring cell is better than the fourth threshold. Assuming the aforementioned performance refers to RSRP, then the performance of the aforementioned N downlink carriers satisfying event 4 can mean that the RSRP of each of the N downlink carriers, or the value calculated by the RSRP of each of the N downlink carriers using a preset formula, is less than the third threshold (for ease of description, referred to as inequality 4-1), and the RSRP of each downlink carrier in a neighboring cell, or the value calculated by the RSRP of each downlink carrier in a neighboring cell using a preset formula, is greater than the fourth threshold (for ease of description, referred to as inequality 4-2). For example, inequality 4-1 above can be inequality A5X-1 below, the RSRP of the downlink carrier can be Ms in inequality A5X-1, the value of RSRP based on carrier 1 calculated by the preset formula can be Ms+Hys, and the third threshold can be Thresh1 in inequality A5X-1; inequality 4-2 above can be inequality A5X-2 below, the RSRP of the downlink carrier can be Mn in inequality A5X-1, the value of RSRP based on carrier 1 calculated by the preset formula can be Mn+Ofn+Ocn–Hys, and the fourth threshold can be Thresh2 in inequality A5X-1; see the relevant content in Figure 5 below for details, which will not be elaborated here.

[0134] For example, the first event includes at least one of the following: cell handover; or, radio link management; or, radio resource management; or, radio link failure; or, radio link recovery.

[0135] For example, let's take a scenario where the wireless link fails, with the terminal being the UE and the network equipment being the base station. In 5G NR, the criteria for determining wireless link failure and subsequent actions are crucial mechanisms for ensuring network stability and quality of service. The following are the general criteria for determining wireless link failure and subsequent actions:

[0136] For example, the judgment condition may be at least one of the following:

[0137] 1) Physical layer problem: If the RSRP measured by the UE is very small (e.g., less than a preset threshold), or cannot decode the physical downlink control channel (PDCCH).

[0138] 2) Uplink problem: When UE tries to send data, the base station does not receive or does not acknowledge (e.g., does not receive ACK on the physical HARQ indicator channel (PHICH).

[0139] 3) Handover failure: During the handover procedure, the UE does not successfully switch to a new cell and cannot maintain the connection with the original cell.

[0140] 4) Timer expiry: The wireless problem timer started after the physical layer indicates a wireless problem expires if the wireless problem has not been recovered before the timer expires.

[0141] For example, the subsequent operations can include at least one of the following:

[0142] 1) Radio resource control (RRC) connection reestablishment: The UE can attempt an RRC connection reestablishment procedure to recover the connection with the network device (e.g., base station). The procedure can include stopping related timers, suspending all radio bearers (RBs) except the basic radio bearer for transmitting control signaling, resetting the medium access control (MAC) address, and sending an RRCReestablishmentRequest message. The basic radio bearer for transmitting control signaling can be a signaling radio bearer 0 (SRB0), which is mainly used to transmit RRC messages transmitted through a common control channel (CCCH) logical channel.

[0143] 2) Fall back to idle mode: If the reestablishment attempt fails, the UE can fall back to the idle mode (Idle Mode) and then attempt to re-access the network device (e.g., base station).

[0144] 3) Record and report events: The UE can record relevant information of the RLF event, such as time, measured RSRP value, etc., and report to the network device (e.g., base station) if possible.

[0145] 4) Analyze the cause: The network operator can optimize the network configuration by analyzing the cause of the RLF event: Based on the analysis result of the RLF event, the network operator can adjust the base station configuration, such as adjusting the transmission power, optimizing the handover parameters, etc.

[0146] When handling RLF events, it is important to quickly and accurately locate the cause of the problem and take appropriate measures to restore service and prevent future RLF events. This often requires continuous monitoring and optimization of network performance.

[0147] For example, when a UE determines whether a radio link failure, it can determine whether a radio link failure based on the performance of N downlink carriers.

[0148] For example, the performance of N downlink carriers can refer to the RSRP of at least one of the N downlink carriers, or the decoding performance of the PDCCH of at least one of the N downlink carriers, or whether the timer of at least one of the N downlink carriers has expired. For example, the performance of N downlink carriers can refer to the RSRP of all of the N downlink carriers, or the decoding performance of the PDCCH of all of the N downlink carriers, or whether the timer of all of the N downlink carriers has expired.

[0149] For example, radio link recovery in 5G NR generally refers to the process of UE attempting to re-establish connection with a network device (such as a base station) after a radio link failure. The following are the general conditions for determining radio link recovery and subsequent operations:

[0150] For example, the determination condition can include at least one of the following:

[0151] 1) Indication of radio link failure: UE detects deterioration of radio link quality, such as continuous failure to receive downlink control channel or failure to successfully transmit uplink data.

[0152] 2) Timer expiration: For example, the expiration of a first timer, the UE has not received any valid downlink signal within a specified time, and the first timer is used to detect radio link failure.

[0153] 3) Physical layer problem persists: The expiration of a radio problem timer started after the physical layer indicates a radio problem, and the problem has not been resolved.

[0154] For example, the subsequent operation can include at least one of the following:

[0155] 1) RRC connection re-establishment attempt: After detecting RLF, the UE can stop all existing activities and attempt to re-establish the RRC connection by sending an RRCReestablishmentRequest message. During the re-establishment process, the UE can select a suitable cell for reconnection attempt.

[0156] 2) Re-establishment procedure: The UE can stop the first timer, start the second timer, and suspend all radio bearers except SRB0 during the re-establishment procedure. The UE can reset the MAC layer, release the MCG SCells, perform MR-DC release, and perform cell selection. The first timer and the second timer can have the same duration or different durations.

[0157] 3) Cell selection: The UE can select the most suitable cell based on signal quality and other criteria for re-establishment attempt. If the UE selects an NR cell, it will continue the RRC re-establishment attempt; if it selects a cell of another radio access technology (RAT), it can need to perform reselection or re-access.

[0158] 4) Re-establishment success or failure: If the base station (such as a gNodeB) can find a valid UE context and verify it, it will resume SRB1 and send an RRCReestablishment message through SRB1. If the re-establishment fails, the UE will decide whether to continue the re-establishment attempt or switch to idle mode according to the configured parameters.

[0159] 5) Integrity and security restoration: After a successful re-establishment, the UE needs to re-derive the keys associated with the previously configured encryption and integrity protection algorithms. The UE will use these keys to restore the encryption and integrity protection of SRB1.

[0160] 6) Recovery of radio resources: Once the re-establishment procedure is complete, the UE and the network device (such as a base station) will reconfigure the radio resources, including beams, modems, coding, etc.

[0161] 7) Network optimization: Network operators can optimize network configuration based on the analysis results of RLF events to reduce future RLF occurrences.

[0162] For example, wireless link recovery is introduced. Wireless link recovery is an important mechanism in 5G NR networks to ensure service continuity and user experience. Network devices (such as base stations) and UEs need to work closely together to quickly and accurately complete the re-establishment procedure.

[0163] For example, the UE can determine whether to perform wireless link recovery based on the performance of N downlink carriers.

[0164] For example, the performance of N downlink carriers can refer to the RRC link re-establishment of N downlink carriers, the re-establishment performance of N downlink carriers, or whether the timers of N downlink carriers have expired.

[0165] For example, in 5G new radio (NR), the judgment conditions and subsequent operations of radio resource management (RRM) are important parts to ensure network performance and user experience. Here are some key judgment conditions and subsequent operations of RRM:

[0166] For example, the judgment conditions can include at least one of the following:

[0167] 1) Network congestion: If the network device (such as a base station) detects congestion, RRM needs to perform resource reallocation and optimization.

[0168] 2) Signal quality: Based on the signal quality measurements reported by the UE (user equipment), such as RSRP (reference signal received power) and SINR (signal-to-interference-plus-noise ratio).

[0169] 3) User mobility: Monitor the speed and direction of UE movement to make appropriate resource allocation and handover decisions.

[0170] 4) Traffic demand: Perform resource allocation according to different types of traffic demand (such as data rate, delay, etc.).

[0171] 5) Interference level: Monitor inter-cell interference and make corresponding adjustments, such as ICIC (inter-cell interference coordination).

[0172] 6) Network coverage: Evaluate network coverage to ensure service continuity.

[0173] For example, the subsequent operations can include at least one of the following:

[0174] 1) Resource allocation: Dynamically allocate spectrum, time, and space resources according to the current network device state and user demand.

[0175] 2) Load balancing: When the network device (such as a base station) is not evenly loaded, balance the load by reallocating users or resources.

[0176] 3) Handover decision: When the UE moves to another cell, RRM is responsible for deciding the best handover timing and target cell.

[0177] 4) QoS management: Ensure that the quality of service (QoS) requirements of different users are met.

[0178] 5) Interference management: implementing interference mitigation techniques such as frequency selective scheduling, power control, etc.

[0179] 6) Admission control: controlling the access of new users to avoid overloading network devices (e.g., base stations).

[0180] 7) Radio bearer control: managing the establishment, modification, and release of radio bearers for UEs.

[0181] 8) Mobility management: including procedures such as cell selection, reselection, and handover.

[0182] For example, RRM is introduced. The decision of RRM is usually based on real-time network status information and prediction data, and the goal is to achieve efficient use of network resources while meeting user experience and service requirements.

[0183] For example, when the UE determines whether RRM is needed, the performance of N downlink carriers can be used to determine whether RRM is needed.

[0184] For example, the performance of N downlink carriers can refer to the signal quality measurement of at least one of the N downlink carriers, or the interference level of at least one of the N downlink carriers, or the network congestion or load of at least one of the N downlink carriers. For example, the performance of N downlink carriers can refer to the signal quality measurement of all of the N downlink carriers, or the interference level of all of the N downlink carriers, or the network congestion or load of all of the N downlink carriers.

[0185] In one embodiment, N is equal to M.

[0186] In another embodiment, the terminal receives second information sent by the network device, and the second information is used to indicate the value of N, or the second information is used to indicate the carrier identifier corresponding to the N downlink carriers; and then the terminal determines the N downlink carriers based on the second information.

[0187] For example, two carrier identification numbering methods are introduced below by referring to FIG. 4A and FIG. 4B, in which the carriers of the same cell are represented by white rectangles for downlink carriers and by diagonal rectangles for uplink carriers. The first method is to number the uplink (transmission) and downlink (reception) carriers independently, as shown in FIG. 4A. If the cell has three uplink carriers and three downlink carriers, the carrier identifiers of the three downlink carriers can be 0, 1 and 2 respectively, and the carrier identifiers of the three uplink carriers can also be 0, 1 and 2 respectively. It can be seen that the carrier identifiers of the downlink carriers and the uplink carriers are independent of each other in this method. The second method is to number the uplink (transmission) and downlink (reception) carriers jointly, as shown in FIG. 4B. If the cell has three uplink carriers and three downlink carriers, the carrier identifiers of the three downlink carriers can be 0, 3 and 5 respectively, and the carrier identifiers of the three uplink carriers can be 1, 2 and 4 respectively.

[0188] It should be understood that one cell includes one or more downlink carriers and one or more uplink carriers, and the transmission and reception are independent and have no pairing relationship. In the downlink carriers, the physical downlink control channel (PDCCH), the physical downlink shared channel (PDSCH), the channel state information-reference signal (CSI-RS), the SSB, etc. can be received, and in the uplink carriers, the physical uplink control channel (PUCCH), the physical uplink shared channel (PUSCH), the SRS, the RACH, etc. can be transmitted. The multiple downlink carriers are equal and have no primary and secondary relationship, and the multiple uplink carriers are equal and have no primary and secondary relationship. Optionally, the carriers can be dynamically scheduled at the symbol level.

[0189] In another embodiment, the multiple carriers in one cell can be regarded as one carrier (such as a virtual carrier or a carrier group), such as a virtual downlink carrier and a virtual uplink carrier. Dynamic spectrum sharing, spectrum access, spectrum switching, etc. can be performed between the multiple carriers in the virtual carrier, such as switching the carriers flexibly considering the requirements of latency, throughput, energy consumption and coverage, etc., and selecting the carrier with better performance in total to improve the communication performance.

[0190] In the above embodiment, the M downlink carriers can be regarded as M bandwidth parts or frequency bands or frequency domain resources, and the N downlink carriers can be regarded as N bandwidth parts or frequency bands or frequency domain resources.

[0191] In another embodiment, the value of N is predefined.

[0192] In some embodiments, the first information can be used for decision of the first event, i.e., after receiving the first information, the network device can make a decision on the first event based on the first information, and determine whether to perform the first event. For example, the first event is cell switching, the network device can determine whether to perform cell switching for the terminal based on the first information, if it is determined to perform cell switching for the terminal, the network device can determine a target carrier based on the signal quality of each carrier in the first information, and instruct the terminal to switch to a cell corresponding to the target carrier. For example, the first event is radio resource management, the network device can determine whether to perform radio resource management for the frequency band where the terminal is located based on the first information, if it is determined to perform radio resource management for the terminal, the network device can determine a target carrier based on the signal quality of each carrier in the first information, and instruct the terminal to perform wireless data transmission in a cell corresponding to the target carrier. For example, the first event is radio link failure, the network device can determine whether to perform an operation after radio link failure, such as recovery, for the frequency band where the terminal is located based on the first information, if it is determined to perform recovery after radio link failure for the terminal, the network device can determine a target carrier based on the signal quality of each carrier in the first information, and instruct the terminal to perform recovery after radio link failure in a cell corresponding to the target carrier. For example, the first event is radio link recovery, the network device can determine whether to perform an operation of radio link recovery for the frequency band where the terminal is located based on the first information, if it is determined to perform radio link recovery for the terminal, the network device can determine a target carrier based on the signal quality of each carrier in the first information, and instruct the terminal to perform radio link recovery in a cell corresponding to the target carrier.

[0193] Optionally, the measurement result of the first event can include performance of the N downlink carriers. For example, the measurement result of the first event can be measurement results of the N downlink carriers; or the measurement result of the first event can be the best one of the measurement results of the N downlink carriers; or the measurement result of the first event can be measurement results of K downlink carriers from the measurement results of the N downlink carriers, where the measurement results of the K downlink carriers can be the first K measurement results of the measurement results of the N downlink carriers in descending order, or the measurement results of the K downlink carriers can be the last K measurement results of the measurement results of the N downlink carriers in descending order, K is an integer greater than 1, and K can be predefined by a protocol or can be informed to the terminal by the network device through signaling. The measurement result of the downlink carrier can be at least one of RSRP, RSRQ and SINR.

[0194] The method embodiment shown in FIG. 3 includes many possible implementation schemes, some of which will be illustrated below with reference to FIGS. 5-7. It should be noted that related concepts, operations or logical relationships not explained in FIGS. 5-7 can be referred to the corresponding descriptions in the embodiment shown in FIG. 3.

[0195] In the present application, the embodiments shown in FIGS. 5 to 7 can be taken as a separate embodiment, and the embodiments shown in FIGS. 5 to 7 can not depend on the technical solution of FIG. 3; and some steps in the embodiments shown in FIGS. 5 to 7 can also be taken as a separate embodiment.

[0196] FIG. 5 is a flow diagram of another communication method provided by an embodiment of the present application.

[0197] In the present application, the network side device is taken as a network equipment (such as a base station), and the terminal side device is taken as a UE as an example, and the communication method provided by the present application is introduced in detail. The functions performed by the UE in the embodiments of the present application can also be performed by a module (for example, a chip) in the UE, and the functions performed by the base station in the embodiments of the present application can also be performed by a module (for example, a chip) in the base station.

[0198] For example, in the embodiments of the present application, the M is equal to the N, and the M downlink carriers are m downlink carriers.

[0199] S501: The base station sends configuration information of a serving cell to the UE, and the configuration information is used to indicate that the serving cell includes m downlink carriers, and m is an integer greater than 1.

[0200] That is to say, the serving cell configured by the base station for the UE includes m downlink carriers. The m downlink carriers can be all downlink carriers of the serving cell.

[0201] S502: The UE determines whether the performance of all downlink carriers of the serving cell meets the reporting condition of the first event, and all carriers of the serving cell are the m downlink carriers.

[0202] In some embodiments, the UE can determine the measurement reporting event according to the performance of all carriers of the serving cell. If the UE determines that the performance of all downlink carriers of the serving cell meets the reporting condition, the UE performs the following step S503; if the UE determines that the performance of all downlink carriers of the serving cell does not meet the reporting condition, the UE does not report the measurement result. It should be noted that if the UE determines that the performance of part of the downlink carriers of the serving cell meets the reporting condition, the UE does not report the measurement result.

[0203] For example, the first event is cell switching, and the reporting condition of the first event can include at least one of the following events A1X-1, event A2X-1, event A3X-1, and event A5X-1. Wherein:

[0204] (1) Event A1X-1 is that the performance of all downlink carriers of the serving cell is better than a threshold (Thresh01).

[0205] For example, when the following inequality A1X-1 (i.e., inequality A1X-1 holds) is satisfied, it can be considered that the entering condition of event A1X-1 (simply referred to as satisfying event A1X-1) is satisfied, or it can be considered that event A1X-1 is entered. When the following inequality A1X-2 is satisfied, it can be considered that event A1X-1 is not satisfied (or it can be considered that event A1X-1 is exited). It should be understood that inequality AX1-1 can also be referred to as the entering condition of event A1X-1, and inequality A1X-2 can also be referred to as the exiting condition of event A1X-1.

[0206] Inequality AX1-1: Ms - Hys > Thresh01; Inequality AX1-2: Ms + Hys < Thresh01.

[0207] (2) Event A2X-1 is that the performance of all downlink carriers of the serving cell is worse than a threshold (Thresh02).

[0208] For example, when the following inequality A2X-1 (i.e., inequality A2X-1 holds) is satisfied, it can be considered that event A2X-1 is satisfied, or it can be considered that event A2X-1 is entered. When the following inequality A2X-2 is satisfied, it can be considered that event A2X-1 is not satisfied (or it can be considered that event A2X-1 is exited). It should be understood that inequality A2X-1 can also be referred to as the entering condition of event A2X-1, and inequality A2X-2 can also be referred to as the exiting condition of event A2X-1.

[0209] Inequality A2X-1: Ms + Hys < Thresh02; Inequality A2X-2: Ms - Hys > Thresh02.

[0210] (3) Event A3X-1 is defined as when the performance of the neighbor cell is better than the performance of all downlink carriers of the serving cell.

[0211] For example, when the following inequality A3X-1 (i.e., inequality A3X-1 holds) is satisfied, it can be considered that event A3X-1 is satisfied, or it can be considered that event A3X-1 is entered. When the following inequality A3X-2 is satisfied, it can be considered that event A3X-1 is not satisfied (or it can be considered that event A3X-1 is exited). It should be understood that inequality A3X-1 can also be referred to as the entering condition of event A3X-1, and inequality A3X-2 can also be referred to as the exiting condition of event A3X-1.

[0212] Inequality A3X-1: Mn + Ofn + Ocn - Hys > Mp + Ofp + Ocp + Off;

[0213] Inequality A3X-2: Mn + Ofn + Ocn + Hys < Mp + Ofp + Ocp + Off.

[0214] (4) Event A5X-1 can be that all downlink carriers of the serving cell have a performance worse than a threshold 1 (Thresh1), and a neighbor cell has a performance better than a threshold 2 (Thresh2).

[0215] For example, event A5X-1 can be considered to be met (or said to enter event A5X-1) when the following inequality A5X-1 and inequality A5X-2 are met; event A5X-1 can be considered to be not met (or said to exit event A5X-1) when the following inequality A5X-3 and inequality A5X-4 are met. It should be understood that inequality A5X-1 can also be referred to as an entering condition 1 of event A5X-1, and inequality A5X-2 can also be referred to as an entering condition 2 of event A5X-1; inequality A5X-3 can also be referred to as an exiting condition 1 of event A5X-1, and inequality A5X-4 can also be referred to as an exiting condition 2 of event A5X-1.

[0216] Inequality A5X-1 (entering condition 1): Mp+Hys<Thresh1;

[0217] Inequality A5X-2 (entering condition 2): Mn+Ofn+Ocn–Hys>Thresh2;

[0218] Inequality A5X-3 (exiting condition 1): Mp–Hys>Thresh1;

[0219] Inequality A5X-4 (exiting condition 2): Mn+Ofn+Ocn+Hys<Thresh2.

[0220] The parameters and calculation formulas in the above inequalities can be referred to the relevant description above.

[0221] Optionally, the base station can also configure different parameters (such as threshold values, etc.) for different carriers, which is not limited in the present application.

[0222] The following takes event A3X-1 and event A5X-1 as examples for description:

[0223] In one implementation, event A3X-1 can be specifically that the neighbor cell offset is better than all carriers in the cell. The UE should consider that the entering condition of the event is met when inequality A3X-1 is met, and consider that the exiting condition of the event is met when inequality A3X-2 is met. Wherein, Mp, Ofp and Ocp in the inequality are used with the data of SpCell. It should be understood that the cell (s) triggering the event has a reference signal indicated in the measObjectNR related to the event, which can be different from the NR Cell measObjectNR.

[0224] Inequality A3X-1 (entry condition): Mn+Ofn+Ocn-Hys > Mp+Ofp+Ocp+Off

[0225] Inequality A3X-2 (exit condition): Mn+Ofn+Ocn+Hys < Mp+Ofp+Ocp+Off.

[0226] Wherein, the variables in the above inequality A3X-1 and inequality A3X-2 are defined as follows: Mp is the measurement result of all carriers in the cell (i.e. the performance of N downlink carriers in the above embodiment of FIG. 3 or the performance of all downlink carriers of the serving cell in the embodiment of FIG. 5 can be represented by Mp or Mn+Ofn+Ocn+Hys), without considering any bias. Or, the above Mp is any carrier in the serving cell, i.e. any carrier in the serving cell satisfies the above inequality A3X-1. Ofp is the measurement object specific offset of all carriers in the cell (i.e. offsetMO defined in measObjectNR corresponding to SpCell). Ocp is the cell specific bias of all carriers in the cell (i.e. carrierIndividualOffset defined in measObjectNR corresponding to all carriers in the cell), and set to 0 if a carrier is not configured. It should be noted that the above all carriers in the cell refer to the above m downlink carriers.

[0227] Wherein, Mn is the measurement result of the neighboring cell (the performance of the above neighboring cell can be represented by Mp or Mp+Ofp+Ocp+Off), without considering any bias. Ofn is the measurement object specific offset of the reference signal of the neighboring cell (i.e. offsetMO defined in measObjectNR corresponding to the neighboring cell). Ocn is the cell specific offset of the neighboring cell (i.e. cellIndividualOffset defined in measObjectNR corresponding to the frequency of the neighboring cell, or cellIndividualOffset defined in reportConfigNR), and set to zero if the neighboring cell is not configured. Hys is the hysteresis parameter of this event (i.e. the hysteresis defined in reportConfigNR for this event). Off is the offset parameter of this event (i.e. a3-Offset defined in reportConfigNR for this event). For RSRP, Mn, Mp are expressed in dBm (i.e. Mn, Mp adopt the unit of dBm); for RSRQ and RS-SINR, expressed in dB (i.e. Mn, Mp adopt the unit of dB). The units of Ofn, Ocn, Ofp, Ocp, Hys, Off are dB.

[0228] In another implementation, event A5X-1 can be specifically: all carriers in the serving cell become worse than threshold 1, and the neighbor cell becomes better than threshold 2. The UE shall: consider the entering condition of the event is met when inequality A5X-1 and inequality A5X-2 are met; consider the leaving condition of the event is met when inequality A5X-3 or inequality A5X-4 is met. It should be noted that Mp uses all carriers in the cell, such as Mp can be the measurement result of all carriers in the cell, without considering any bias. It should be understood that the parameters of the reference signal(s) of the cell(s) triggering the event are indicated in the measObjectNR related to the event, which can be different from the measObjectNR of the NRCell.

[0229] wherein the variables in the above inequalities A5X-1 to A5X-4 are defined as follows: Mp is the measurement result of all carriers in the cell (i.e. the above serving cell), without considering any bias. Mn is the measurement result of the neighbor cell, without considering any bias. Ofn is the measurement object specific offset of the neighbor cell (i.e. offsetMO defined in the measObjectNR corresponding to the neighbor cell). Ocn is the cell specific offset of the neighbor cell (i.e. cellIndividualOffset defined in the measObjectNR corresponding to the neighbor cell, or cellIndividualOffset defined in the reportConfigNR), set to zero if not configured for the neighbor cell. Hys is the hysteresis parameter of this event (i.e. hysteresis defined in the reportConfigNR for this event). Thresh1 is the threshold parameter of this event (e.g. a5-Threshold1 defined in the reportConfigNR for this event). Thresh2 is the threshold parameter of this event (e.g. a5-Threshold2 defined in the reportConfigNR for this event). For RSRP, Mn, Mp are expressed in dBm; for RSRQ and RS-SINR, in dB. Ofn, Ocn, Hys are in units of dB. Thresh1 is in the same unit as Mp. Thresh2 is in the same unit as Mn.

[0230] It should be understood that, assuming that the above events A1X-1 to A5X-1 are measurement events for cell switching, the above events A1X-1 to A5X-1 can also be referred to as: cell switching A1X-1 to cell switching event A5X-1.

[0231] S503: The UE sends first information to the base station when it is determined that the performance of all downlink carriers in the serving cell meets the reporting condition of the first event, and the first information is used to indicate the measurement result of the first event.

[0232] Optionally, the first information is further used for indicating that the performance of the downlink carrier satisfies a reporting condition of the first event; or, the first information is further used for indicating that the first event occurs; or, the first information is further used for indicating that the first event is triggered.

[0233] For example, the reporting condition of the first event is event A3X-1, and the UE determines that the performance of all downlink carriers in the serving cell is worse than a threshold 1 and the performance of the neighbor cell is better than a threshold 2, and the UE can send the first information to the base station when it is determined that the above inequality A3-1 is true, and the first information is used for indicating the event A3X-1 and / or Mp.

[0234] For example, the first information is used for indicating that the event A3X-1 occurs or is triggered, and / or, the first information is used for indicating the Mp corresponding to the event A3X-1. Optionally, the first information can also be used for indicating the measurement result (such as the above Mn) of the neighbor cell.

[0235] The above is described by taking the first event as a cell switching event as an example. Similarly, the first event can also be a radio link management, a radio link monitoring, a radio link failure, and / or a radio link recovery. The above embodiments can also be used for the radio link management, the radio link monitoring, the radio link failure, and / or the radio link recovery, such as the above events A1X-1 to A5X-1, or other events, that is, the UE and the base station can determine the related operations of the radio link management, the radio link monitoring, and / or the radio link recovery according to all carriers in a cell.

[0236] The embodiments of the present application can perform cell management, radio link management, radio link failure, radio link recovery, etc. according to all carriers in a serving cell, and improve the communication performance. In addition, the embodiments of the present application can balance the load and avoid too many users accessing the same cell to cause too heavy load of a cell / carrier by performing access, radio link recovery, and / or leaving management on all carriers.

[0237] FIG. 6 is a flow diagram of another communication method provided by the embodiments of the present application.

[0238] The network device in the embodiments of the present application is taken as a base station, and the terminal is taken as a UE, and the communication method provided by the present application is described in detail. The functions performed by the UE in the embodiments of the present application can also be performed by a module (for example, a chip) in the UE, and the functions performed by the base station in the embodiments of the present application can also be performed by a module (for example, a chip) in the base station.

[0239] For example, in the embodiments of the present application, the above M is equal to the above N, the above M downlink carriers are m downlink carriers, and the above N downlink carriers are m1 downlink carriers.

[0240] S601: The base station sends the configuration information of the serving cell to the UE. The configuration information is used to indicate that the serving cell includes m downlink carriers, where m is an integer greater than 1.

[0241] In other words, the serving cell configured by the base station for the UE includes m downlink carriers. Among them, m downlink carriers can be all downlink carriers of the serving cell.

[0242] S602: The UE determines m1 downlink carriers from the above m downlink carriers based on the predefined m1 value.

[0243] Where 1≤m1≤m; the value of m1 is predefined, such as m1=1, 2 or 3, etc.

[0244] In some embodiments, the UE can determine m1 downlink carriers based on carrier identifiers and preset rules. For example, if the preset rule prioritizes downlink carriers with smaller carrier identifiers, then, assuming m1 = 1, the UE will determine the carriers with smaller carrier identifiers as the aforementioned m1 downlink carriers; if m1 > 1, the UE can sort the m downlink carriers according to their carrier identifiers from smallest to largest, and determine the first m1 downlink carriers with smaller carrier identifiers as the aforementioned m1 downlink carriers. Alternatively, if the preset rule prioritizes downlink carriers with larger carrier identifiers, then, assuming m1 = 1, the UE will determine the carriers with larger carrier identifiers as the aforementioned m1 downlink carriers; if m1 > 1, the UE can sort the m downlink carriers according to their carrier identifiers from largest to smallest, and determine the first m1 downlink carriers with larger carrier identifiers as the aforementioned m1 downlink carriers. Another example is if the preset rule prioritizes downlink carriers configured earlier according to their configuration order, then, assuming m1 = 1, the UE will determine the carrier configured first as the aforementioned m1 downlink carriers; if m1 > 1, the UE can determine the first m1 downlink carriers configured as the aforementioned m1 downlink carriers. For example, if the preset rule is to select the downlink carrier with the earliest configuration and the smaller carrier identifier according to the carrier configuration order, then, assuming m1=1, the UE will determine the carrier with the smaller carrier identifier as the above m1 downlink carriers; assuming m1>1, the UE can determine the first m1 downlink carriers with the earliest carrier identifier as the above m1 downlink carriers.

[0245] S603: The UE determines whether the performance of the above m1 downlink carriers meets the reporting conditions for the first event.

[0246] In some embodiments, the UE can determine measurement reporting events based on the performance of m1 downlink carriers of the serving cell.

[0247] For example, the first event mentioned above is cell handover, and the reporting conditions mentioned above may include at least one of the following events: A1X-1, A2X-1, A3X-1, and A5X-1. Wherein:

[0248] (1) Event A1X-1 is: the performance of m1 downlink carriers of the serving cell is all better than a threshold (Thresh01).

[0249] For example, when the following inequality A1X-1 is satisfied (i.e. inequality A1X-1 is established), it can be considered that the entering condition of event A1X-1 is satisfied (referred to as event A1X-1 is satisfied), or event A1X-1 is entered; when the following inequality A1X-2 is satisfied, it can be considered that event A2X-1 is not satisfied (or referred to as event A2X-1 is exited). It should be understood that inequality A1X-1 can also be referred to as the entering condition of event A1X-1, and inequality A1X-2 can also be referred to as the exiting condition of event A1X-1.

[0250] Inequality A1X-1: Ms-Hys>Thresh01; Inequality A1X-2: Ms+Hys<Thresh01.

[0251] Optionally, the base station can also configure different parameters (such as threshold value Thresh01) for different carriers, which is not limited in the present application.

[0252] For example, the carrier corresponding to the carrier identifier 0 corresponds to the threshold value Thresh01-0; or, the carrier corresponding to the carrier identifier 1 corresponds to the threshold value Thresh01-1; or, the carrier corresponding to the carrier identifier 2 corresponds to the threshold value Thresh01-2; or, the carrier corresponding to the carrier identifier 3 corresponds to the threshold value Thresh01-3.

[0253] (2) Event A2X-1 is: the performance of m1 downlink carriers of the serving cell is all worse than a threshold (Thresh02).

[0254] For example, when the following inequality A2X-1 is satisfied (i.e. inequality A2X-1 is established), it can be considered that event A2X-1 is satisfied, or event A2X-1 is entered; when the following inequality A2X-2 is satisfied, it can be considered that event A2X-1 is not satisfied (or referred to as event A2X-1 is exited). It should be understood that inequality A2X-1 can also be referred to as the entering condition of event A2X-1, and inequality A2X-2 can also be referred to as the exiting condition of event A2X-1.

[0255] Inequality A2X-1: Ms+Hys<Thresh02; Inequality A2X-2: Ms-Hys>Thresh02.

[0256] Optionally, the base station can also configure different parameters (such as threshold value Thresh02) for different carriers, which is not limited in the present application.

[0257] For example, the carrier with carrier identity 0 corresponds to threshold value Thresh02-0; or, the carrier with carrier identity 1 corresponds to threshold value Thresh02-1; or, the carrier with carrier identity 2 corresponds to threshold value Thresh02-2; or, the carrier with carrier identity 3 corresponds to threshold value Thresh02-3.

[0258] (3) Event A3X-1 is defined as when the performance of the neighbor cell is better than the performance of the m1 downlink carriers of the serving cell.

[0259] For example, when the following inequality A3X-1 is satisfied (i.e., inequality A3X-1 is established), it can be considered that event A3X-1 is satisfied, or event A3X-1 is entered; when the following inequality A3X-2 is satisfied, it can be considered that event A3X-1 is not satisfied (or event A3X-1 is exited). It should be understood that inequality A3X-1 can also be referred to as an entering condition of event A3X-1, and inequality A3X-2 can also be referred to as an exiting condition of event A3X-1.

[0260] Inequality A3X-1: Mn+Ofn+Ocn–Hys>Mp+Ofp+Ocp+Off;

[0261] Inequality A3X-2: Mn+Ofn+Ocn+Hys<Mp+Ofp+Ocp+Off.

[0262] Optionally, the base station can also configure different parameters (such as offset parameter Off, etc.) for different carriers, which is not limited in the present application.

[0263] For example, the carrier with carrier identity 0 corresponds to offset parameter Off-0; or, the carrier with carrier identity 1 corresponds to offset parameter Off-1; or, the carrier with carrier identity 2 corresponds to offset parameter Off-2; or, the carrier with carrier identity 3 corresponds to offset parameter Off-3.

[0264] (4) Event A5X-1 can be when the performance of the m1 downlink carriers of the serving cell is worse than threshold 1 (Thresh1), and the performance of the neighbor cell is better than threshold 2 (Thresh2).

[0265] Inequality A5X-1 (Entering condition 1): Mp+Hys<Thresh1;

[0266] Inequality A5X-2 (Entering condition 2): Mn+Ofn+Ocn–Hys>Thresh2;

[0267] Inequality A5X-3 (Leaving condition 1): Mp - Hys > Threshl;

[0268] Inequality A5X-4 (Leaving condition 2): Mn + Ofn + Ocn + Hys < Thresh2.

[0269] For example, when the following inequality A5X-1 and inequality A5X-2 are satisfied, it can be considered that the event A5X-1 is satisfied, or it is called that the event A5X-1 is entered; when the following inequality A5X-3 and inequality A5X-4 are satisfied, it can be considered that the event A5X-1 is not satisfied (or it is called that the event A5X-1 is left). It should be understood that the inequality A5X-1 can also be called the entering condition 1 of the event A5X-1, and the inequality A5X-2 can also be called the entering condition 2 of the event A5X-1; the inequality A5X-3 can also be called the leaving condition 1 of the event A5X-1, and the inequality A5X-4 can also be called the leaving condition 2 of the event A5X-1.

[0270] Inequality A5X-1 (Entering condition 1): Mp + Hys < Threshl;

[0271] Inequality A5X-2 (Entering condition 2): Mn + Ofn + Ocn - Hys > Thresh2;

[0272] Inequality A5X-3 (Leaving condition 1): Mp - Hys > Threshl;

[0273] Inequality A5X-4 (Leaving condition 2): Mn + Ofn + Ocn + Hys < Thresh2.

[0274] The parameters and calculation formulas in the above inequalities can be referred to the related description in the above.

[0275] Optionally, the base station can also configure different parameters (such as threshold values Threshl, Thresh2, etc.) for different carriers, which is not limited in the present application.

[0276] For example, the carrier corresponding to the carrier identifier 0 corresponds to the threshold values Threshl-0 and Thresh2-0; or, the carrier corresponding to the carrier identifier 1 corresponds to the threshold values Threshl-1 and Thresh2-1; or, the carrier corresponding to the carrier identifier 2 corresponds to the threshold values Threshl-2 and Thresh2-2; or, the carrier corresponding to the carrier identifier 3 corresponds to the threshold values Threshl-3 and Thresh2-3.

[0277] The following takes the event A3X-1 and the event A5X-1 as examples for description:

[0278] In one implementation, event A3X-1 can be specifically: the offset of the neighbor cell is better than the m1 downlink carriers in the cell.

[0279] The UE shall consider the entering condition of the event to be fulfilled when inequality A3X-1 is fulfilled; consider the leaving condition of the event to be fulfilled when inequality A3X-2 is fulfilled. Wherein the data of SpCell is used for Mp, Ofp and Ocp in the inequalities. It should be understood that the cell(s) that triggers the event has the reference signal indicated in the measObjectNR related to the event, which can be different from the NR Cell measObjectNR.

[0280] Inequality A3X-1 (entering condition): Mn+Ofn+Ocn-Hys>Mp+Ofp+Ocp+Off;

[0281] Inequality A3X-2 (leaving condition): Mn+Ofn+Ocn+Hys<Mp+Ofp+Ocp+Off.

[0282] Wherein the variables in the above inequality A3X-1 and inequality A3X-2 are defined as follows: Mp is the measurement result of the m1 downlink carriers in the cell, without considering any offset. Ofp is the measurement object specific offset of the m1 downlink carriers in the cell (i.e. offsetMO defined in the measObjectNR corresponding to the SpCell). Ocp is the cell specific offset of the m1 downlink carriers in the cell (i.e. carrierIndividualOffset defined in the measObjectNR corresponding to the m1 downlink carriers in the cell), and Ocp is set to 0 if a carrier is not configured.

[0283] The remaining parameters in the equation can be referred to the relevant description above, i.e. Mn is the measurement result of the neighbor cell without considering any bias. Ofn is the measurement object specific offset of the reference signal of the neighbor cell (i.e. offsetMO defined in measObjectNR corresponding to the neighbor cell). Ocn is the cell specific offset of the neighbor cell (i.e. cellIndividualOffset defined in measObjectNR corresponding to the frequency of the neighbor cell, or cellIndividualOffset defined in reportConfigNR), which is set to zero if the neighbor cell is not configured. Hys is the hysteresis parameter of this event (i.e. hysteresis defined in reportConfigNR for this event). Off is the offset parameter of this event (i.e. a3-Offset defined in reportConfigNR for this event). For RSRP, Mn, Mp are expressed in dBm; for RSRQ and RS-SINR, in dB. The units of Ofn, Ocn, Ofp, Ocp, Hys, Off are dB.

[0284] In another implementation, event A5X-1 can be specifically event A5 (m1 downlink carriers in the cell become worse than threshold 1, neighbor cell becomes better than threshold 2). The UE shall: consider the entering condition of this event is met when inequality A5X-1 and inequality A5X-2 are met; consider the leaving condition of this event is met when inequality A5X-3 or inequality A5X-4 is met. It should be noted that Mp uses all carriers in the cell, i.e. Mp can be the measurement result of all carriers in the cell without considering any bias. It should be understood that the parameters of the reference signal(s) of the cell(s) triggering the event are indicated in the measObjectNR related to the event, which can be different from the measObjectNR of the NRCell.

[0285] wherein the variables in inequalities A5X-1 to A5X-4 are defined as follows: Mp is the measurement result of m1 downlink carriers in the cell without considering any bias.

[0286] Other variables in the formula can refer to the relevant description above, such as Mn is the measurement result of the neighboring cell, without considering any bias. Ofn is the measurement object specific offset of the neighboring cell (i.e. offsetMO defined in measObjectNR corresponding to the neighboring cell). Ocn is the cell specific offset of the neighboring cell (i.e. cellIndividualOffset defined in measObjectNR corresponding to the neighboring cell, or cellIndividualOffset defined in reportConfigNR), and is set to zero if the neighboring cell is not configured. Hys is the hysteresis parameter of this event (i.e. hysteresis defined in reportConfigNR for this event). Thresh1 is the threshold parameter of this event (i.e. a5-Threshold1 defined in reportConfigNR for this event). Thresh2 is the threshold parameter of this event (i.e. a5-Threshold2 defined in reportConfigNR for this event). For RSRP, Mn, Mp are expressed in dBm; for RSRQ and RS-SINR, in dB. Ofn, Ocn, Hys are in units of dB. Thresh1 has the same unit as Mp. Thresh2 has the same unit as Mn.

[0287] It should be understood that, assuming that the above events A1X-1 to A5X-1 are measurement events for cell switching, the above events A1X-1 to A5X-1 can also be referred to as: cell switching events A1X-1 to A5X-1.

[0288] S604: When the UE determines that the performance of the above m1 downlink carriers meets the reporting condition of the first event, the UE sends first information to the base station, and the first information is used to indicate the measurement result of the first event.

[0289] Optionally, the first information is also used to indicate whether the reporting condition of the first event is met, or whether the first event occurs, or whether the first event is triggered. For example, the first information is used to indicate that the reporting condition of the first event is met, or the first event occurs, or the first event is triggered, or the first event is triggered, etc.

[0290] For example, the reporting condition of the first event is event A3X-1, the UE determines that the performance of the m1 downlink carriers in the serving cell is worse than threshold 1, and the neighboring cell is better than threshold 2, i.e. the inequality A3X-1 is determined to be true, the UE can send the first information to the base station, and the first information is used to indicate event A3X-1 and / or Mp.

[0291] For example, the first information is used for indicating that the event A3X-1 occurs or is triggered, and / or, the first information is used for indicating that the event A3X-1 corresponds to the Mp. Optionally, the first information can also be used for indicating the measurement result (e.g., the above-mentioned Mn) of the neighbor cell.

[0292] The above is described by taking the first event as the cell switching event as an example. Similarly, the first event can also be the radio link management, the radio link monitoring, the radio link failure, and / or the radio link recovery, etc. For the radio link management, the radio link monitoring, the radio link failure, and / or the radio link recovery, the above-mentioned embodiments can also be adopted, such as the above-mentioned events A1X-1 to A5X-1, or other events, that is, the UE and the base station can determine the related operations of the radio link management, the radio link monitoring, and / or the radio link recovery according to the partial carriers (i.e., the above-mentioned m1 downlink carriers) in one cell.

[0293] The embodiments of the present application can perform the cell management, the radio link management, the radio link failure, the radio link recovery, etc. according to the partial carriers in the serving cell, and improve the communication performance. In addition, the embodiments of the present application can balance the load and avoid too many users accessing the same cell to cause the load of one cell / carrier to be too heavy by performing the access, the radio link recovery, and / or the leaving management on the partial carriers.

[0294] FIG. 7 is a flow diagram of another communication method provided by the embodiments of the present application.

[0295] The network device in the embodiments of the present application is taken as the base station, and the terminal is taken as the UE, and the communication method provided by the present application is introduced in detail. The functions performed by the UE in the embodiments of the present application can also be performed by the modules (e.g., chips) in the UE, and the functions performed by the base station in the embodiments of the present application can also be performed by the modules (e.g., chips) in the base station.

[0296] For example, in the embodiments of the present application, the above-mentioned M is equal to the above-mentioned N, the above-mentioned M downlink carriers are m downlink carriers, and the above-mentioned N downlink carriers are m1 downlink carriers.

[0297] S701: The base station sends the configuration information of the serving cell to the UE, and the configuration information is used for indicating that the serving cell includes m downlink carriers, and m is an integer greater than 1.

[0298] That is, the serving cell configured by the base station for the UE includes m downlink carriers. The m downlink carriers can be all the downlink carriers of the serving cell.

[0299] S702: The base station sends the second information to the UE, and the second information is used for indicating the value of m1, or the second information is used for indicating the carrier identifiers corresponding to the m1 downlink carriers.

[0300] Correspondingly, the UE receives second information sent by the base station.

[0301] For example, the base station can configure the value of m1 in the ReportConfigNR, or configure the carrier identifiers corresponding to m1 downlink carriers.

[0302] S703: The UE determines m1 downlink carriers from the m downlink carriers based on the second information.

[0303] Wherein, 1 < m1 <= m.

[0304] In some embodiments, the second information is used to indicate the value of m1, and the UE can determine the m1 downlink carriers according to the carrier identifiers and a preset rule. For example, the preset rule is to preferentially select downlink carriers with small carrier identifiers. Assuming that m1 = 1, the UE determines the downlink carrier with the smallest carrier identifier as the m1 downlink carrier. Assuming that m1 > 1, the UE can sort the m downlink carriers according to the carrier identifiers from small to large, and determine the first m1 downlink carriers with smaller carrier identifiers as the m1 downlink carriers. For example, the preset rule is to preferentially select downlink carriers with large carrier identifiers. Assuming that m1 = 1, the UE determines the downlink carrier with the largest carrier identifier as the m1 downlink carrier. Assuming that m1 > 1, the UE can sort the m downlink carriers according to the carrier identifiers from large to small, and determine the first m1 downlink carriers with larger carrier identifiers as the m1 downlink carriers. For example, the preset rule is to preferentially select downlink carriers configured early according to the configuration order. Assuming that m1 = 1, the UE determines the downlink carrier configured first as the m1 downlink carrier. Assuming that m1 > 1, the UE can determine the first m1 downlink carriers configured early as the m1 downlink carriers. For example, the preset rule is to preferentially select downlink carriers configured early and with small carrier identifiers according to the configuration order. Assuming that m1 = 1, the UE determines the downlink carrier configured first and with the smallest carrier identifier as the m1 downlink carrier. Assuming that m1 > 1, the UE can determine the first m1 downlink carriers configured early and with small carrier identifiers as the m1 downlink carriers.

[0305] In other embodiments, the second information is used to indicate the carrier identifiers corresponding to the m1 downlink carriers, and then the downlink carriers corresponding to the carrier identifiers of the m1 downlink carriers are determined as the m1 downlink carriers. For example, the second information indicates m1 carrier identifiers, including a1, a2, …, am1, and the downlink carriers corresponding to the m1 carrier identifiers are the m1 downlink carriers.

[0306] S704: The UE determines whether the performance of the m1 downlink carriers meets the reporting condition of the first event.

[0307] In some embodiments, the UE can determine the measurement reporting event according to the performance of the m1 downlink carriers of the serving cell.

[0308] For example, the first event is a cell handover, and the reporting condition can include at least one of the reporting conditions of event A1X-1, event A2X-1, event A3X-1, and event A5X-1. The details of event A1X-1, event A2X-1, event A3X-1, and event A5X-1 can refer to the description of step S603, which will not be repeated here.

[0309] S705: When the UE determines that the performance of the m1 downlink carriers meets the reporting condition of the first event, the UE sends first information to the base station, and the first information is used to indicate the measurement result of the first event.

[0310] Optionally, the first information is also used to indicate that the performance of the downlink carrier meets the reporting condition of the first event, or the first information is also used to indicate that the first event occurs, or the first information is also used to indicate that the first event triggers, etc.

[0311] For example, the reporting condition of the first event can be event A3X-1, i.e., the UE determines that the performance of the m1 downlink carriers of the serving cell meets the condition that the m1 downlink carriers of the serving cell are worse than threshold 1 and the neighbor cell is better than threshold 2, such as determining that the inequality A3X-1 is true, the UE can send the first information to the base station, and the first information is used to indicate event A3X-1 and / or Mp.

[0312] For example, the first information is used to indicate that event A3X-1 occurs or triggers, and / or the first information is used to indicate Mp corresponding to event A3X-1. Optionally, the first information can also be used to indicate the measurement result of the neighbor cell (such as Mn).

[0313] The above is an example of taking the first event as a cell handover event. Similarly, the first event can also be radio link management, radio link monitoring, radio link failure, and / or radio link recovery, etc. For radio link management, radio link monitoring, radio link failure, and / or radio link recovery, the above embodiments can also be used, such as using the above event A1X-1 to event A5X-1, or other events, i.e., the UE and the base station can determine the related operations of radio link management, radio link monitoring, and / or radio link recovery according to part of the carriers (i.e., the m1 downlink carriers) in a cell.

[0314] The embodiments of the present application can perform cell management, radio link management, radio link failure, radio link recovery, etc. according to the partial carriers in the serving cell, thereby improving the communication performance. In addition, the embodiments of the present application can balance the load and avoid too many users accessing the same cell to cause the load of a cell / carrier to be too heavy by performing access, radio link recovery, and / or leaving management on the partial carriers.

[0315] Optionally, the measurement signal of the first event in the embodiments of the present application can be at least one of a synchronization signal, an SSB, a CSI-RS, a demodulation reference signal (DMRS), a sounding reference signal (SRS), a tracking reference signal (TRS), a positioning reference signal (PRS), a phase tracking reference signal (PTRS), a sensing reference signal, a beam management reference signal, or other signals, etc. The present application does not make any limitation in this regard.

[0316] The above describes the method provided by the present application in detail. In order to facilitate the implementation of the above-mentioned scheme of the embodiments of the present application, the embodiments of the present application further provide a corresponding device or equipment.

[0317] The present application divides the functions of the network device and the terminal according to the above-mentioned method embodiments, for example, each function module can be divided according to each function, or two or more functions can be integrated in one processing module. The above-mentioned integrated module can be realized in the form of hardware or in the form of a software function module. It should be noted that the division of the modules in the present application is illustrative, and is only a logical function division. When actually implemented, there can be another division manner. The communication device of the embodiments of the present application will be described in detail below with reference to FIGS. 8 to 10.

[0318] Referring to FIG. 8, FIG. 8 is a structure schematic diagram of a communication device provided by the embodiments of the present application. As shown in FIG. 8, the communication device can include a transceiver unit 10 and a processing unit 20.

[0319] In some embodiments of the present application, the communication device can be the terminal shown above or a chip or circuit provided in the terminal. That is, the communication device can be used to perform the steps or functions, etc. performed by the terminal in the above method embodiments.

[0320] In one design, the transceiver 10 is configured to receive configuration information of a serving cell, the configuration information indicating that the serving cell comprises M downlink carriers, M being an integer greater than 1; and transmit first information when performance of N downlink carriers of the M downlink carriers satisfies a reporting condition of a first event, the first information indicating a measurement result of the first event, N being a positive integer not greater than M.

[0321] In one possible implementation, the processing unit 20 is configured to determine the measurement result.

[0322] Optionally, the reporting condition comprises at least one of the following: the performance of the N downlink carriers is better than a first threshold; or, the performance of the N downlink carriers is worse than a second threshold; or, performance of a neighbor cell is better than the performance of the N downlink carriers; or, the performance of the N downlink carriers is worse than a third threshold and the performance of the neighbor cell is better than a fourth threshold.

[0323] For example, the performance of the N downlink carriers is at least one of the following: performance of each of the N downlink carriers, or average performance of the N downlink carriers, or performance of at least one of the N downlink carriers; and the performance of the neighbor cell is at least one of the following: performance of each of the downlink carriers of the neighbor cell, or average performance of the downlink carriers of the neighbor cell, or performance of at least one of the downlink carriers of the neighbor cell.

[0324] For example, the first event comprises at least one of the following: cell handover, or radio link management, or radio resource management, or radio link failure, or radio link recovery.

[0325] In one possible implementation, the transceiver 10 is configured to receive second information, the second information indicating a value of N, or the second information indicating carrier identifiers corresponding to the N downlink carriers.

[0326] Optionally, the value of N is predefined.

[0327] Optionally, the performance comprises at least one of the following: RSRP, or RSRQ, or RS-SINR. In the embodiments of the present application, the descriptions of the first event, the reporting condition, and the first information can be referred to the descriptions of the method embodiments shown in FIGS. 3-7, which will not be repeated here.

[0328] It can be understood that the specific descriptions of the transceiver 10 and the processing unit 20 shown in the embodiments of the present application are only examples, and the specific functions or steps performed by the transceiver 10 and the processing unit 20 can be referred to the method embodiments shown in FIGS. 3-7, which will not be repeated here. In addition, the technical effects of the embodiments of the present application can be referred to the technical effects of the method embodiments shown in FIGS. 3-7, which will not be repeated here for brevity.

[0329] In some embodiments of the present application, the communication apparatus can be the network device or the chip or circuit arranged in the network device shown above. That is, the communication apparatus can be used to perform the steps or functions performed by the network device in the above method embodiments.

[0330] In one design, the transceiver 10 is configured to: transmit configuration information of a serving cell, the configuration information being used to indicate that the serving cell comprises M downlink carriers, M being an integer greater than 1; and receive first information, the first information being used to indicate a measurement result of a first event, N being a positive integer not greater than M, the first information being related to performance of N downlink carriers of the M downlink carriers, the performance of the N downlink carriers satisfying a reporting condition of the first event.

[0331] Optionally, the reporting condition comprises at least one of the following: the performance of the N downlink carriers is better than a first threshold; or, the performance of the N downlink carriers is worse than a second threshold; or, performance of a neighbor cell is better than the performance of the N downlink carriers; or, the performance of the N downlink carriers is worse than a third threshold and the performance of the neighbor cell is better than a fourth threshold.

[0332] For example, the performance of the N downlink carriers comprises at least one of the following: performance of each of the N downlink carriers, or average performance of the N downlink carriers, or performance of at least one of the N downlink carriers; and the performance of the neighbor cell comprises at least one of the following: performance of each of downlink carriers of the neighbor cell, or average performance of downlink carriers of the neighbor cell, or performance of at least one of downlink carriers of the neighbor cell.

[0333] For example, the first event comprises at least one of the following: cell handover, or radio link management, or radio resource management, or radio link failure, or radio link recovery.

[0334] In one possible implementation, the transceiver 10 is configured to: transmit second information, the second information being used to indicate the value of N, or the second information being used to indicate carrier identifiers corresponding to the N downlink carriers.

[0335] In one possible implementation, the processing unit 20 is configured to determine the second information.

[0336] Optionally, the value of N is predefined.

[0337] For example, the performance comprises at least one of the following: RSRP, or RSRQ, or RS-SINR. In the embodiments of the present application, the descriptions about the first event, the reporting condition, and the first information can refer to the descriptions in the above method embodiments shown in FIG. 8, which are not repeated here.

[0338] It can be understood that the specific description of the transceiver unit 10 and the processing unit 20 shown in the embodiments of the present application is only an example. For the specific functions or executed steps of the transceiver unit 10 and the processing unit 20, reference can be made to the method embodiments shown in the above-mentioned Figure 8, and here will not be described in detail. In addition, the technical effects of the embodiments of the present application refer to the technical effects in the method embodiments shown in the above-mentioned Figure 8. For the sake of brevity, they will not be described here.

[0339] The network device and the terminal of the embodiments of the present application are introduced above, and the possible product forms of the network device and the terminal are introduced below. It should be understood that any form of product that has the functions of the terminal or the network device described in the above-mentioned Figure 8 falls within the protection scope of the embodiments of the present application. It should also be understood that the following introduction is only an example and does not limit the product form of the communication device of the embodiments of the present application.

[0340] In a possible implementation, in the communication apparatus shown in FIG. 8, the processing unit 20 can be processing circuitry, and the transceiver unit 10 can be communication circuitry. The processing circuitry can be one or more processors, or all or part of a circuit for control or processing in the one or more processors; when the communication apparatus is a terminal or a network device, the communication circuitry can be a transceiver circuit, which can be a transceiver; when the communication apparatus is a chip or a chip system, the communication circuitry can be an interface circuit; when the communication apparatus is a server, the communication circuitry can be an interface circuit or a transceiver circuit. The transceiver unit 10 can also be a sending unit and a receiving unit, the sending unit can be a sending circuit, and the receiving unit can be a receiving circuit, which are integrated in one device. In the embodiments of the present application, the processing circuitry and the communication circuitry can be coupled, and the connection manner of the processing circuitry and the communication circuitry is not limited in the embodiments of the present application. In the process of executing the above method, the process of sending information in the above method can be understood as the process of outputting the above information by the processing circuitry. When the above information is output, the processing circuitry outputs the above information to the communication circuitry, so that the communication circuitry transmits. After the above information is output by the processing circuitry, it can also need to be processed further, and then reach the communication circuitry. Similarly, the process of receiving information in the above method can be understood as the process of receiving the input above information by the processing circuitry. When the processing circuitry receives the input information, the communication circuitry receives the above information and inputs it to the processing circuitry. Further, after the communication circuitry receives the above information, the above information can need to be processed further, and then input to the processing circuitry. In a possible implementation, in the communication apparatus shown in FIG. 8, the processing unit 20 can be one or more processors, and the transceiver unit 10 can be a transceiver, or the transceiver unit 10 can also be a sending unit and a receiving unit, the sending unit can be a transmitter, and the receiving unit can be a receiver, which are integrated in one device, such as a transceiver. In the embodiments of the present application, the processor and the transceiver can be coupled, and the connection manner of the processor and the transceiver is not limited in the embodiments of the present application. In the process of executing the above method, the process of sending information in the above method can be understood as the process of outputting the above information by the processor. When the above information is output, the processor outputs the above information to the transceiver, so that the transceiver transmits. After the above information is output by the processor, it can also need to be processed further, and then reach the transceiver. Similarly, the process of receiving information in the above method can be understood as the process of receiving the input above information by the processor. When the processor receives the input information, the transceiver receives the above information and inputs it to the processor. Further, after the transceiver receives the above information, the above information can need to be processed further, and then input to the processor.

[0341] Referring to FIG. 9, FIG. 9 is another structure diagram of a communication apparatus provided in the embodiments. As shown in FIG. 9, the communication apparatus provided in the embodiments can be used to implement the method described in the above method embodiments, and the description can be referred to the above method embodiments. The communication apparatus can be a terminal, or a network device, or a chip therein. For example, the communication apparatus includes one or more processors 1001. The communication apparatus can further include a memory 1003. Optionally, the communication apparatus can further include a transceiver 1002. In an implementation, the communication apparatus further includes an input / output device (not shown in FIG. 9).

[0342] The processor 1001 is mainly used to process communication protocols and communication data, and control the whole communication apparatus, execute software programs, and process data of the software programs. The memory 1003 is mainly used to store software programs and data. The transceiver 1002 can include a control circuit and an antenna. The control circuit is mainly used to convert baseband signals and radio frequency signals, and process the radio frequency signals. The antenna is mainly used to transceive radio frequency signals in the form of electromagnetic waves. The input / output device, such as a touch screen, a display screen, a keyboard, etc., is mainly used to receive user input data and output data to the user.

[0343] When the communication apparatus is powered on, the processor 1001 can read the software programs in the memory 1003, interpret and execute instructions of the software programs, and process data of the software programs. When data needs to be transmitted wirelessly, the processor 1001 performs baseband processing on the data to be transmitted, and outputs the baseband signals to the radio frequency circuit. The radio frequency circuit converts the baseband signals into radio frequency signals, and transmits the radio frequency signals in the form of electromagnetic waves through the antenna. When data is transmitted to the communication apparatus, the radio frequency circuit receives the radio frequency signals through the antenna, converts the radio frequency signals into baseband signals, and outputs the baseband signals to the processor 1001. The processor 1001 converts the baseband signals into data and processes the data.

[0344] In another implementation, the radio frequency circuit and the antenna can be arranged independently of the processor performing baseband processing, for example, in a distributed scenario, the radio frequency circuit and the antenna can be arranged remotely from the communication apparatus.

[0345] For example, the processor 1001, the transceiver 1002, and the memory 1003 can be connected through a communication bus.

[0346] For example, when the communication apparatus is used to execute the steps or methods or functions performed by the network device in the embodiment shown in FIG. 3, the transceiver 1002 can be used to execute step S301 and step S302 in FIG. 3, and the processor 1001 can be used to execute processes for the technologies described herein.

[0347] For example, when the communication apparatus is configured to perform the steps or methods or functions performed by the terminal in the embodiment shown in FIG. 3, the transceiver 1002 can be configured to perform steps S301 and S302 in FIG. 3, and the processor 1001 can be configured to perform the processes of the techniques described herein.

[0348] In any of the above implementation manners, the processor 1001 can include a transceiver for implementing the receiving and sending functions. For example, the transceiver can be a transceiver circuit, or an interface, or an interface circuit. The transceiver circuit, interface or interface circuit for implementing the receiving and sending functions can be separate or integrated together. The above transceiver circuit, interface or interface circuit can be used for reading and writing of code / data, or the above transceiver circuit, interface or interface circuit can be used for transmission or transfer of signals.

[0349] In any of the above implementation manners, the processor 1001 can store instructions, which can be a computer program, and the computer program can run on the processor 1001 to enable the communication apparatus to perform the methods described in the above method embodiments. The computer program can be fixed in the processor 1001, and in this case, the processor 1001 can be implemented by hardware.

[0350] In an implementation manner, the communication apparatus can include a circuit, which can implement the functions of sending or receiving or communication in the above method embodiments. The processor and the transceiver described in the present application can be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit (RFIC), a mixed-signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and the transceiver can also be manufactured by various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), positive channel metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0351] It can be understood that the communication apparatus shown in the embodiments of the present application can also have more components than those shown in FIG. 9, and the embodiments of the present application do not limit this. The method performed by the processor and the transceiver shown above is only an example, and the specific steps performed by the processor and the transceiver can be referred to the description of the method embodiments above.

[0352] In another possible implementation, the communication apparatus provided by the embodiments of the present application can include one or more processors and a memory. Wherein, the processor is configured to execute a program stored in the memory, when the program is executed, the method embodiments above are executed. Exemplarily, the processor and the memory can also be integrated into one device, that is, the processor and the memory can also be integrated together. The specific content of the processor and the memory can also be referred to the related content of the processor 1001 and the memory 1003 in FIG. 9.

[0353] In another possible implementation, the communication apparatus shown in FIG. 9 can also include a processing unit, the processing unit can be one or more logic circuits, and the transceiving unit 10 can be an input / output interface, also called a communication interface, or an interface circuit, or an interface, etc. Alternatively, the transceiving unit 10 can also be a sending unit and a receiving unit, the sending unit can be an output interface, and the receiving unit can be an input interface, and the sending unit and the receiving unit are integrated into one unit, for example, an input / output interface.

[0354] Referring to FIG. 10, FIG. 10 is another structural schematic diagram of the communication apparatus provided by the embodiments of the present application. As shown in FIG. 10, the communication apparatus shown in FIG. 10 includes a logic circuit 901 and an interface 902. That is, the above-mentioned processing unit can be implemented by the logic circuit 901, and the transceiving unit 10 can be implemented by the interface 902. Wherein, the logic circuit 901 can be a chip, a processing circuit, an integrated circuit, or a system on chip (SoC) chip, etc., and the interface 902 can be a communication interface, an input / output interface, a pin, etc. Exemplarily, FIG. 10 is shown by taking the above-mentioned communication apparatus as a chip, and the chip includes the logic circuit 901 and the interface 902.

[0355] In the embodiments of the present application, the logic circuit and the interface can also be coupled to each other. The specific connection manner of the logic circuit and the interface is not limited by the embodiments of the present application.

[0356] Exemplarily, when the communication apparatus is used to execute the steps or methods or functions executed by the terminal in the method embodiments shown in FIG. 3 above, the interface 902 is configured to transmit the first information.

[0357] Exemplarily, when the communication apparatus is used to execute the steps or methods or functions executed by the network device in the method embodiments shown in FIG. 3 above, the interface 902 is configured to transmit the configuration information of the serving cell.

[0358] In the embodiments of the present application, the description about the first data and the like can refer to the introduction in the method embodiments shown in FIG. 3, which will not be repeated here. It can be understood that the specific description of the logic circuit 901 and the interface 902 can also refer to the introduction of the processing unit and the transceiver unit shown in FIG. 8, which will not be repeated here.

[0359] It can be understood that the communication apparatus shown in the embodiments of the present application can implement the method provided by the embodiments of the present application in the form of hardware, or implement the method provided by the embodiments of the present application in the form of software, and the like, which is not limited in the embodiments of the present application.

[0360] For the specific implementation of each embodiment shown in FIG. 10, it can also refer to the above-mentioned embodiments, which will not be described here.

[0361] The embodiments of the present application also provide a communication system, which includes a network device and a terminal, and the network device and the terminal can be used to execute the method in any one of the preceding method embodiments (FIG. 3 to FIG. 7).

[0362] In addition, the present application also provides a computer program for implementing the operations and / or processes performed by the communication apparatus (such as the above-mentioned network device and terminal) in the method provided by the present application.

[0363] The present application also provides a computer readable storage medium, which stores computer code, when the computer code runs on the computer, so that the computer executes the operations and / or processes performed by the communication apparatus (such as the above-mentioned network device and terminal) in the method provided by the present application.

[0364] The present application also provides a computer program product, which includes computer code or computer program, when the computer code or computer program runs on the computer, so that the operations and / or processes performed by the communication apparatus (such as the above-mentioned network device and terminal) in the method provided by the present application are executed.

[0365] In several embodiments provided by the present application, it should be understood that the disclosed system, device and method can be implemented by other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there can be another division way in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can also be electrical, mechanical or other forms of connection.

[0366] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the technical effects of the scheme provided by the embodiments of the present application.

[0367] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present alone, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0368] The integrated unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the part of the prior art that contributes to the technical solutions, or all or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a readable storage medium, including a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned readable storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program code storage media.

[0369] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method characterized by comprising: The method applied to a terminal-side device comprises: receiving configuration information of a serving cell, the configuration information being used for indicating that the serving cell comprises M downlink carriers, the M being an integer greater than 1; when performance of N downlink carriers in the M downlink carriers satisfies a reporting condition of the first event, sending first information, the first information being used for indicating a measurement result of the first event, the N being a positive integer not greater than the M.

2. The method of claim 1, wherein, The reporting condition comprises at least one of the following: the performance of the N downlink carriers is better than a first threshold; or, the performance of the N downlink carriers is worse than a second threshold; or, performance of a neighbor cell is better than the performance of the N downlink carriers; or, the performance of the N downlink carriers is worse than a third threshold and the performance of the neighbor cell is better than a fourth threshold.

3. The method of claim 2, wherein the performance of the N downlink carriers is at least one of the following: performance of each of the N downlink carriers, or average performance of the N downlink carriers, or performance of at least one of the N downlink carriers; the performance of the neighbor cell is at least one of the following: performance of each of downlink carriers in the neighbor cell, or average performance of downlink carriers in the neighbor cell, or performance of at least one of downlink carriers in the neighbor cell.

4. The method according to any one of claims 1-3, characterized in that, The first event comprises at least one of the following: cell switching; or radio link management; or radio resource management; or radio link failure; or radio link recovery.

5. The method according to any one of claims 1-4, characterized in that, The method further comprises: receiving second information, the second information being used for indicating a value of the N, or the second information being used for indicating carrier identities corresponding to the N downlink carriers.

6. The method according to any one of claims 1-4, characterized in that, The value of the N is predefined.

7. The method according to any one of claims 1 to 6, characterized in that, The performance comprises at least one of the following: reference signal received power (RSRP); or reference signal received quality (RSRQ); or reference signal signal-to-noise ratio (RS-SINR).

8. A communication method characterized by comprising: The method applied to a network-side device comprises: sending configuration information of a serving cell, the configuration information being used for indicating that the serving cell comprises M downlink carriers, the M being an integer greater than 1; receiving first information, the first information being used for indicating a measurement result of a first event, the N being a positive integer not greater than the M, the first information being related to performance of N downlink carriers in the M downlink carriers, the performance of the N downlink carriers satisfying a reporting condition of the first event.

9. The method of claim 8, wherein, The reporting condition comprises at least one of the following: the performance of the N downlink carriers is better than a first threshold; or, the performance of the N downlink carriers is worse than a second threshold; or, performance of a neighbor cell is better than the performance of the N downlink carriers; or, the performance of the N downlink carriers is worse than a third threshold and the performance of the neighbor cell is better than a fourth threshold.

10. The method of claim 9, wherein the performance of the N downlink carriers is at least one of the following: performance of each of the N downlink carriers, or average performance of the N downlink carriers, or performance of at least one of the N downlink carriers; the performance of the neighbor cell is at least one of the following: performance of each of downlink carriers in the neighbor cell, or average performance of downlink carriers in the neighbor cell, or performance of at least one of downlink carriers in the neighbor cell. The performance of the neighbor cell is at least one of: a performance of each downlink carrier in the neighbor cell, or an average performance of downlink carriers in the neighbor cell, or a performance of at least one downlink carrier in the neighbor cell.

11. The method according to any one of claims 8-10, characterized in that, The first event comprises at least one of: cell handover; or radio link management; or radio resource management; or radio link failure; or radio link recovery.

12. The method according to any one of claims 8-11, characterized in that, The method further comprises: sending second information, the second information being used for indicating the value of the N, or the second information being used for indicating carrier identities corresponding to the N downlink carriers.

13. The method according to any one of claims 8-12, characterized in that, The value of the N is predefined.

14. The method according to any one of claims 8-13, characterized in that, The performance comprises at least one of: reference signal received power (RSRP); or reference signal received quality (RSRQ); or reference signal signal-to-noise ratio (RS-SINR).

15. A communications device, characterized by comprising means or units for performing the method of any one of claims 1 to 14.

16. A communications device, characterized by comprising a processor and interface circuitry for receiving signals from and transmitting signals to other communication devices, the processor being configured to implement processes recited in any one of claims 1 to 14 by logic circuitry or executable code instructions.

17. A readable storage medium, characterized by, a non-transitory computer-readable medium storing program code, the program code being executed by one or more processors to cause a device including the one or more processors to perform a method recited in any one of claims 1 to 14.

18. A computer program product, characterised in that, The computer program product comprises one or more computer programs, which when run on a computer, cause the computer to perform the method of any one of claims 1 to 14.

19. A chip, characterized by comprising a processor configured to perform the method of any one of claims 1 to 14.

20. A communication system, characterized by comprising: a terminal-side device for performing the method of any one of claims 1 to 7, and a network-side device for performing the method of any one of claims 8 to 14.

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