CN116963142A

CN116963142A - Communication method, device and equipment

Info

Publication number: CN116963142A
Application number: CN202210376458.1A
Authority: CN
Inventors: 孔令帅; 谢曦; 杨帆
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2023-10-27
Also published as: WO2023197804A1

Abstract

The application discloses a communication method, a device and equipment, which are used for measuring when BWP is switched. The method comprises the following steps: the terminal device may use a first SSB associated with a first BWP to make measurements; after receiving the first information, the terminal device may reset the first measurement. Wherein the first information may indicate that the active BWP of the terminal device is switched to the second BWP; the first measurement is a measurement using the first SSB. In this way, after the BWP is switched, the terminal device resets the measurement using the first SSB, so that the influence of the measurement using the first SSB on the measurement using the second SSB associated with the second BWP can be avoided, and further, reasonable measurement and/or measurement reporting can be implemented when the BWP is switched.

Description

Communication method, device and equipment

Technical Field

The present application relates to the field of communications, and in particular, to a communication method, apparatus, and device.

Background

In mobility management, the terminal device may use the synchronization signal block (synchronization signal block, SSB) to make measurements. When the measurement results of a certain cell within a set period of time all meet a set condition (for example, the signal strength of the cell is greater than or equal to a first threshold value), the terminal device may generate a measurement report and send the measurement report to the network device. In this way, the network device may perform mobility management on the terminal device according to the measurement report, for example, handover the terminal device to another network device.

Currently, mobile communication systems (e.g., the fifth generation (the 5 ^th generation, 5G) mobile communication system) a new type of terminal equipment, such as reduced capability terminals (reduced capability UE, redCap UE), has been introduced. Compared with the traditional terminal equipment, the novel terminal equipment has a narrower supported bandwidth range. For example, a RedCap UE may support a 20 megahertz (MHz) bandwidth (for frequency range 1 (f 1)) and a 100MHz bandwidth (for frequency range 2 (f 2)), whereas a legacy terminal device may support a 100MHz bandwidth (for FR 1) and a 200MHz bandwidth (for FR 2).

Currently, non-cell defining SSBs (NCD-SSBs) are introduced for new terminal devices, and the NCD-SSBs may be contained within the BWP (e.g., active BWP) used by the new terminal device UE. The new terminal device can use NCD-SSB for cell measurements.

The terminal device may change the SSB used when performing BWP handover, for example, from using CD-SSB for cell measurement to using NCD-SSB for cell measurement. How to perform measurement when switching BWP is a technical problem to be solved.

Disclosure of Invention

The application provides a communication method, a device and equipment, which are used for measuring when BWP is switched.

In a first aspect, an embodiment of the present application provides a communication method. The method may be applied in a communication system as shown in fig. 1 below. The method comprises the following steps:

the terminal device may use a first SSB associated with a first BWP to make measurements; after receiving the first information, the terminal device may reset the first measurement. Wherein the first information may indicate that the active BWP of the terminal device is switched to the second BWP; the first measurement is a measurement using the first SSB.

By the method, after the BWP is switched, the terminal equipment can reset the measurement using the first SSB, so that the influence of the measurement using the first SSB on the measurement using the second SSB associated with the second BWP can be avoided, and reasonable measurement and/or measurement report can be realized when the BWP is switched.

In one possible design, the first measurement may include: using a measurement of the measurement result of the first SSB in the measurement event evaluation; and/or, a measurement using the measurement result of the first SSB reported in the measurement report. By this design, after switching BWP, the terminal device may reset the measurement of the measurement result using the first SSB involved in the measurement event evaluation and/or measurement report, so that the influence of the measurement using the first SSB on the measurement using the second SSB associated with the switched second BWP may be avoided, and further a reasonable measurement and/or measurement reporting at the time of switching BWP may be achieved.

In one possible design, the terminal device resetting the first measurement may comprise at least one of:

c: the terminal device resets the measurement event evaluation of the first measurement. For example, when the terminal device switches BWP, the evaluation state started based on the measurement performed by the first SSB may be reset, so that the accuracy of measurement event evaluation and measurement report may be improved, and RRM performed by the network device based on an inaccurate measurement report may be avoided.

D: and the terminal equipment resets the report of the first measurement and reports the report. For example, when the terminal device switches BWP, the reporting information when the first SSB is used for cell measurement can be reset, so that the influence of the measurement of the first SSB on the measurement of the second SSB associated with the second BWP after the switch can be avoided, and further, reasonable measurement reporting can be realized when the BWP is switched, and RRM by the network device based on inaccurate measurement report can be avoided.

In one possible design, the terminal device may reset the first measurement by at least one of:

the terminal device may delete or empty cells in the first cell list; the first cell list may include one or more cells; the one or more cells are cells in the first measurement for which the measurement result meets the reporting criterion;

The terminal device may reset or stop the first timer; the first timer may be used to evaluate whether the first measurement meets a reporting criterion;

the terminal device can reset the counter; the counter may be used to indicate the number of times the terminal device transmits the measurement report of the first measurement.

This design provides a specific operation for resetting the first measurement, which is easy to implement.

In one possible design, the method further comprises: the terminal device may use a second SSB associated with a second BWP to make measurements. By means of the design, after the BWP is switched, the terminal equipment can reset the measurement of the first SSB related to the first BWP before the BWP is switched and use the second SSB related to the second BWP to conduct measurement, so that the influence of the measurement of the first SSB on the measurement of the second SSB related to the second BWP after the BWP is switched can be avoided, and reasonable measurement and/or measurement report can be achieved when the BWP is switched.

In one possible design, the second SSB is different from the first SSB. With this design, when SSBs before and after the BWP is switched are different, the terminal device resets the measurement using the first SSB associated with the first BWP before the BWP is switched after the BWP is switched, thereby ensuring the accuracy of the measurement.

In one possible design, the first SSB is a CD-SSB and the second SSB is an NCD-SSB; alternatively, the first SSB is NCD-SSB and the second SSB is CD-SSB; alternatively, the first SSB and the second SSB are both CD-SSB; alternatively, the first SSB and the second SSB are both NCD-SSB.

In a second aspect, an embodiment of the present application provides a communication method. The method may be applied in a communication system as shown in fig. 1 below. The method comprises the following steps: the terminal device may use a first SSB associated with a first BWP to make measurements; after receiving the first information, the terminal device may stop or suspend the measurement associated with the first measurement object and/or the terminal device may associate the measurement associated with the first measurement object to the second measurement object. Wherein the first information may indicate that the active BWP of the terminal device is switched to the second BWP; the first measurement object comprises a first SSB; the second measurement object includes a second SSB associated with a second BWP.

By the method, after the BWP is switched, the terminal equipment can stop or suspend the measurement of the first SSB related to the first BWP before the BWP is switched, so that unnecessary measurement of the first SSB can be avoided, and further reasonable measurement and/or measurement report can be realized when the BWP is switched.

In addition, after switching BWP, the terminal device may associate the measurement associated with the first measurement object to the second measurement object, the first measurement object comprising the first SSB, the second measurement object comprising the second SSB associated with the second BWP. In this way, the terminal device can use the second SSB to perform measurements by means of measurements associated with the first measurement object, so that a reasonable measurement and/or measurement reporting can be achieved when switching BWP.

In one possible design, the terminal device may associate a measurement reporting configuration associated with the first measurement object to the second measurement object.

By this design, after switching BWP, the terminal device may associate the measurement report configuration associated with the first measurement object to the second measurement object, the first measurement object comprising the first SSB, the second measurement object comprising the second SSB associated with the second BWP. In this way, even if the second SSB has no associated measurement report configuration, the terminal device may use the second SSB to perform measurement through the measurement report configuration associated with the first measurement object, so that reasonable measurement and/or measurement report may be performed when the BWP is switched.

In addition, through the design, the network equipment only needs to send one set of reporting configuration to the terminal equipment aiming at a plurality of SSBs, so that transmission resources can be saved, and signaling overhead can be saved.

In one possible design, the second SSB is different from the first SSB. With this design, when SSBs before and after switching BWP are different, the terminal device stops or suspends measurement associated with the first measurement object after switching BWP, and/or associates measurement associated with the first measurement object to the second measurement object, thereby ensuring accuracy of measurement.

In a third aspect, embodiments of the present application provide a communications apparatus comprising means for performing the steps of any of the above aspects.

In a fourth aspect, embodiments of the present application provide a communication device comprising at least one processing element and at least one storage element, wherein the at least one storage element is for storing programs and data, and the at least one processing element is for reading and executing the programs and data stored by the storage element, such that the method provided by any of the above aspects of the present application is implemented.

In a fifth aspect, an embodiment of the present application provides a communication system, including: a terminal device for performing the method provided in the first or second aspect, a network device for communicating with the terminal device.

In a sixth aspect, embodiments of the present application also provide a computer program product (which may also be a computer program) which, when run on a computer, causes the computer to perform the method provided in any of the above aspects.

In a seventh aspect, embodiments of the present application further provide a computer-readable storage medium having a computer program stored therein, which when executed by a computer, causes the computer to perform the method provided in any of the above aspects.

In an eighth aspect, an embodiment of the present application further provides a chip, where the chip is configured to read a computer program stored in a memory, and perform the method provided in any one of the foregoing aspects.

In a ninth aspect, an embodiment of the present application further provides a chip system, where the chip system includes a processor, configured to support a computer device to implement the method provided in any one of the above aspects. In one possible design, the chip system further includes a memory for storing programs and data necessary for the computer device. The chip system may be formed of a chip or may include a chip and other discrete devices.

The technical effects that can be achieved by any one of the third aspect to the ninth aspect may be explained with reference to the technical effects that can be achieved by any one of the possible designs of any one of the first aspect or the second aspect, and the discussion will be omitted.

Drawings

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

FIG. 2 is a flow chart of a measurement-based handoff method;

fig. 3A is a schematic diagram of cell measurement during BWP handover;

fig. 3B is a schematic diagram of another cell measurement at the time of BWP handover;

fig. 4 is a flowchart of a first communication method according to an embodiment of the present application;

FIG. 5 is a flowchart of a second communication method according to an embodiment of the present application;

fig. 6 is a flowchart of a third communication method according to an embodiment of the present application;

fig. 7 is a flowchart of a fourth communication method according to an embodiment of the present application;

fig. 8 is a flowchart of a fifth communication method according to an embodiment of the present application;

fig. 9A is a schematic diagram of an association relationship in a scenario 1 provided by an embodiment of the present application;

fig. 9B is a schematic diagram of an association relationship in a scenario 2 provided by an embodiment of the present application;

fig. 10 is a block diagram of a communication device according to an embodiment of the present application;

Fig. 11 is a block diagram of a communication device according to an embodiment of the present application.

Detailed Description

The application provides a communication method and a communication device for measuring when BWP is switched. The method and the device are based on the same technical conception, and because the principle of solving the problems by the method and the device is similar, the implementation of the device and the method can be mutually referred to, and the repetition is not repeated.

In the scheme provided by the embodiment of the application, the terminal equipment can use the first SSB associated with the first BWP to measure; after receiving the first information, the terminal device may reset the first measurement. Wherein the first information may indicate that the active BWP of the terminal device is switched to the second BWP; the first measurement is a measurement using the first SSB. In this way, after the BWP is switched, the terminal device resets the measurement using the first SSB, so that the influence of the measurement using the first SSB on the measurement using the second SSB associated with the second BWP can be avoided, and further, reasonable measurement and/or measurement reporting can be implemented when the BWP is switched.

In the following, some terms used in the present application are explained for easy understanding by those skilled in the art.

1) A terminal device is a device that provides voice and/or data connectivity to a user. The terminal device may also be referred to as a User Equipment (UE), a terminal (terminal), an access terminal, a terminal unit, a terminal station, a Mobile Station (MS), a remote station, a remote terminal, a Mobile Terminal (MT), a wireless communication device, a terminal agent, or a terminal device, etc.

For example, the terminal device may be a handheld device having a wireless connection function, or may be a vehicle having a communication function, an in-vehicle device (e.g., an in-vehicle communication apparatus, an in-vehicle communication chip), or the like. Currently, examples of some terminal devices are: a mobile phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA) device, a handheld device with wireless communication capability, a computing device or other processing device connected to a wireless modem, a tablet, a computer with wireless transceiver capability, a notebook, a palm, a mobile internet device (mobile internet device, MID), a wearable device, a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (self driving), a wireless terminal in teleoperation (remote medical surgery), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in home (smart home), etc.

2) The network device is a device for accessing the terminal device to the wireless network in the mobile communication system. The network device serves as a node in the radio access network and may also be referred to as a base station, a radio access network (radio access network, RAN) node (or device), AN Access Point (AP), AN Access Network (AN) device.

Currently, examples of some network devices are: new generation Node bs (generation Node B, gNB), transmission reception points (transmission reception point, TRP), evolved Node bs (enbs), radio network controllers (radio network controller, RNC), node bs (Node bs, NB), base station controllers (base station controller, BSC), base transceiver stations (base transceiver station, BTS), transmission points (transmitting and receiving point, TRP), transmission points (transmitting point, TP), mobile switching centers, home base stations (e.g., home evolved NodeB, or home Node bs, HNBs), or baseband units (base band units, BBU), etc.

In addition, in one network structure, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU). The structure splits the protocol layers of the network device, the functions of part of the protocol layers are controlled in the CU in a centralized way, and the functions of the rest part or all of the protocol layers are distributed in the DU, so that the CU controls the DU in a centralized way. For example, a CU is responsible for handling non-real-time protocols and services, implementing the functions of the radio resource control (radio resource control, RRC) layer and the packet data convergence layer protocol (packet data convergence protocol, PDCP) layer. The DUs are responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (radio link control, RLC), medium access control (media access control, MAC) and Physical (PHY) layers.

Optionally, the network device may further comprise an active antenna unit (active antenna unit, AAU). The AAU realizes part of physical layer processing function, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer may eventually become information of the PHY layer or be converted from the information of the PHY layer, under this architecture, higher layer signaling, such as RRC layer signaling, may also be considered to be transmitted by the DU or by the du+aau.

It will be appreciated that the network device may include one or more of CU, DU, AAU. In addition, the CU may be divided into network devices in the access network, or may be divided into network devices in the CN, which is not limited in the present application.

3) In the present application, the measurement result based on the NCD-SSB can be replaced with the measurement result based on the NCD-SSB frequency point. SSB frequency points may be replaced with SSB frequencies. The measurement event evaluation may be replaced with a measurement evaluation. Measurement report reporting may be replaced with measurement reporting. The measurement report based on SSB evaluation may be replaced with a measurement report based on SSB measurement results.

In the embodiments of the present application, the number of nouns, unless otherwise indicated, means "a singular noun or a plural noun", i.e. "one or more". "at least one" means one or more, and "a plurality" means two or more. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s).

In addition, it should be understood that in the description of the present application, the words "first," "second," and the like are used merely for distinguishing between the descriptions and not be construed as indicating or implying a relative importance or order.

A communication system to which embodiments of the present application are applied will be described below with reference to the accompanying drawings.

Fig. 1 shows a structure of a mobile communication system to which the method provided by the embodiment of the present application is applicable. Referring to fig. 1, the system includes: network devices and terminal devices (e.g., terminal device a, terminal device b shown in fig. 1).

The network device is an entity capable of receiving and transmitting wireless signals at the network side, and is responsible for providing wireless access related services for terminal devices in the coverage area of the network device, and realizing physical layer functions, resource scheduling and wireless resource management, quality of service (Quality of Service, qoS) management, wireless access control and mobility management functions.

The terminal equipment is an entity capable of receiving and transmitting wireless signals at the user side and needs to access a network through the network equipment. The terminal device may be various devices that provide voice and/or data connectivity for the user, for example, as shown in fig. 1, and the terminal device may be a vehicle-mounted device, a smart phone, or the like.

The terminal equipment can establish connection with one network equipment to form a single-connection communication system; a connection may also be established with two network devices forming a dual-connection (dual connectivity, DC) communication system.

It should also be noted that, as an example, the mobile communication system shown in fig. 1 is not limited to the communication system configuration to which the method provided in the embodiment of the present application is applicable. In summary, the method provided by the embodiment of the application is applicable to communication systems and application scenarios in which various terminal devices support multiple capabilities, i.e., the embodiment of the application can also be applied to communication systems of various types and systems, for example: the embodiments of the present application are not limited by 5G communication systems, long term evolution (Long Term Evolution, LTE) communication systems, wireless fidelity (wireless fidelity, wi-Fi) systems, 6G communication systems, and future communication systems, car-to-anything (vehicle to everything, V2X), long term evolution-car networking (LTE-V), car-to-car (vehicle to vehicle, V2V), car networking, machine-type communication (Machine Type Communications, MTC), internet of things (internet of things, ioT), long term evolution-machine-to-machine (LTE-machine to machine, LTE-M), machine-to-machine (machine to machine, M2M).

The background art to which the present application relates is described below.

1、RedCap UE：

For example, a RedCAP UE may be a reduced capability terminal compared to eMBB and URLLC terminal devices, such as a reduced maximum bandwidth capability, a reduced number of transmit antennas/antenna channels (branches), a reduced maximum multiple-in multiple-out (multiple input multiple outpout, MIMO) layer number capability, a reduced maximum modulation order (modulation order) capability, support Half Duplex frequency division duplexing (frequency division duplexing, FDD) (Half Duplex FDD, HD-FDD), etc., compared to eMBB and URLLC terminal devices.

The maximum bandwidth capability of a RedCap UE defined by the third generation partnership project (3rd generation partnership project,3GPP) release 17 (R17) standard is: 20MHz bandwidth (for FR 1), 100MHz bandwidth (for FR 2). Whereas the maximum bandwidth capabilities of the terminal devices of the eMBB and URLLC (which may also be referred to as non-RedCap terminal devices) may be: 100MHz bandwidth (for FR 1), 200MHz bandwidth (for FR 2).

2. SSB, can be used for terminal equipment to carry out operations such as timing synchronization and measurement. SSB may include CD-SSB and NCD-SSB.

Wherein the CD-SSB is the SSB associated with system information block 1 (system information block 1, sibb 1). The terminal device may acquire SIB1 based on the CD-SSB, performing at least one of the following operations: timing synchronization, radio link monitoring (radio link monitoring, RLM)/beam failure detection (beam failure detection, BFD)/radio resource management (radio resource management, RRM) measurement and beam management, etc.

The NCD-SSB is an SSB lacking information to establish one complete cell. For example, NCD-SSB contains only synchronization signals; for another example, NCD-SSB is not associated with SIB 1; as another example, the SIB1 associated with the NCD-SSB lacks a partial field as compared to the current SIB 1.

In addition, the NCD-SSB may be an SSB that is additionally configured for a new type of terminal device (e.g., a RedCap UE). Due to limitations of the maximum bandwidth capability of the RedCap UE, the BWP used by the RedCap UE (e.g., active BWP) may not include the CD-SSB of the current service area. In this case, the RedCap UE may not be able to perform operations such as timing synchronization and measurement using the CD-SSB. Thus, there is currently provided an NCD-SSB that may be included within the BWP (e.g., activated BWP) used by the RedCAP UE and may replace the functionality of the CD-SSB.

As previously described, the terminal device may make measurements according to SSB; in this way, the network device may perform mobility control (intra-system or inter-system handover or redirection) or carrier aggregation/dual-connection establishment according to the RRM measurement of the SSB by the UE. The measurement of the terminal device according to SSB will be described below with reference to fig. 2, taking the terminal device as an example of UE.

S201: the network device sends measurement configuration information to the UE.

Wherein, the measurement configuration information may include at least one of the following measurement configuration parameters: measurement object (MeasObj), reporting configuration (ReportConfig), measurement identity (MeasId), etc.

The measurement object is an object for instructing the UE to perform measurement. Wherein the measurement object may be associated with a measurement object identification. The measurement object may include at least one of: reference signal configuration information, cell-related information, and the like. The reference signals in the New Radio (NR) include: SSB and channel state information reference signal (CSI-RS). For example, if the network device configures the UE to perform measurement based on the SSB reference signal, configuration information of the SSB may be included in the measurement object.

Reporting configuration is used for configuring rules of measurement reporting and formats of measurement reports. Wherein, the report configuration can be associated with a report identifier. The reporting configuration may include at least one of: reporting criteria, reporting period, total number of reported measurement reports, maximum number of reported cells, reference signal type of reported measurement results, etc.

The reporting criteria are criteria for triggering the UE to report measurement (i.e. triggering the UE to send a measurement report); the type of reporting criteria may include periodic and/or event triggered, etc. Reporting the measurement report according to a set period by a periodic reporting criterion; the UE may report the periodic measurement report by using a periodic report timer, where the timing duration of the periodic report timer is the set period. The reporting criteria for event-triggered types may include class a events and/or class B events. Wherein the class a event is an event with a radio access technology (intra-radio accesss technology, intra-RAT), for example, at least one of an A1 event, an A2 event, an A3 event, an A5 event, and the like. The class B event is an inter-RAT (inter-RAT) event, for example, a B2 event. For details of any of the events, reference is made to the description of fig. 5, which is not expanded herein.

The measurement identifier can be used for associating a measurement object with a reporting configuration; thus, a measurement identifier may identify a measurement. The UE may include the corresponding measurement identity in the reported measurement report in order for the network device to determine which measurement the measurement report is the result of.

In addition, the measurement configuration information may be carried in an RRC message, for example, an RRC reconfiguration message (rrcrecon configuration).

S202: and the UE performs measurement according to the measurement configuration information, and sends a measurement report to the network equipment when the reporting criterion is met.

Specifically, the UE may perform measurement of the service area and/or the neighbor cell using the SSB associated with the currently activated BWP according to the measurement configuration information, and evaluate the measurement result; when the evaluation service area and/or the neighbor area meet the reporting criteria, the UE may generate a corresponding measurement report and send the measurement report to the network device.

The reporting criteria of the event trigger type may include: the measurement results continue to satisfy the entry condition of the event for a first period of time. Alternatively, the first time period may be determined by a trigger time parameter (timeToTrigger) of the network configuration, in other words, the timing period of the network configuration evaluation timer is the first time period. The first duration may be included in the reporting configuration. For example, the UE may start the evaluation timer when it is detected that the measurement result of the first cell satisfies the entry condition of the event based on the SSB currently activating the BWP association. If the measurement results of the first cell meet the entry condition of the event during the running period of the evaluation timer, after the overtime of the evaluation timer, the UE sends a measurement report to the network equipment; and/or if the measurement result of the first cell does not meet the entry condition of the event during the operation of the evaluation timer, stopping or resetting the evaluation timer. The first cell is any cell in a service area and/or a neighbor cell.

In addition, the UE may report a maximum of N measurement reports. Wherein N is a positive integer configurable by the network device; for example, N is the total number of reported measurement reports in the reporting configuration.

S203: the network device determines RRM operation from the measurement report from the UE.

For example, the RRM operation may be to perform handover for the UE; for example, it may be that the UE is handed over to another network device (i.e., the target network device). For another example, RRM operations may be: adding a secondary cell or establishing a dual connection for the UE.

Currently, a cell may include a plurality of SSBs (e.g., CD-SSBs and NCD-SSBs), and the UE may also switch SSBs used for measurement when switching active BWP (BWP for short). When performing measurements using the method shown in fig. 2, how the UE performs measurements (e.g., how to perform measurement event evaluation and/or measurement report reporting) after the BWP is switched is a problem to be solved. Specifically, when the UE performs measurement by the method shown in fig. 2, the following problems may exist:

1. as shown in fig. 3A, when BWP is switched, the UE is performing measurement evaluation based on SSB before BWP is switched. Specifically, at time T1, the UE satisfies the entry condition of the event based on the cell measurement by the BWP 1-associated CD-SSB, thereby starting the evaluation timer; at time T2, the active BWP of the UE switches from BWP1 to BWP2 and performs measurement on the cell based on the NCD-SSB associated with BWP 2; at time T2, the evaluation timer started based on the measurement result of the CD-SSB associated with BWP1 has not timed out yet, in other words, the evaluation state started based on the measurement by the CD-SSB is ongoing; at time T3, the UE obtains measurement results of the BWP 2-associated NCD-SSB. After time T2, how to handle the evaluation state is a problem to be solved.

2. As shown in fig. 3B, upon switching BWP, the UE has completed measurement evaluation based on SSB before switching BWP. Specifically, at time T4, the UE satisfies the entry condition of the event based on the cell measurement by the BWP 1-associated CD-SSB, thereby starting the evaluation timer; at the time T5, the evaluation timer is overtime, and the UE triggers to send a measurement report to the network equipment; at time T6, the active BWP of the UE switches from BWP1 to BWP2 and makes measurements on the cell based on the NCD-SSB associated with BWP 2; at time T7, the UE obtains measurement results of the BWP 2-associated NCD-SSB. After time T6, how to handle measurement reporting based on CD-SSB is a problem to be solved, for example, whether to continue using reporting information (e.g. number of reported measurement reports, reported cell list) when measurement based on CD-SSB is to be used.

3. In some scenarios, the measurement object has an associated reporting configuration. For example, the service area contains CD-SSB and NCD-SSB; measurement object 1 contains CD-SSB, and measurement object 2 contains NCD-SSB; the measurement object 1 and the measurement object 2 respectively have associated reporting configurations.

In other scenarios, only a portion of the measurement objects have an associated reporting configuration. For example, the service area contains CD-SSB and NCD-SSB; measurement object 1 contains CD-SSB, and measurement object 2 contains NCD-SSB; the measurement object 1 has an associated reporting configuration, while the measurement object 2 has no associated reporting configuration.

At BWP handover, if the SSB used for measurement also switches (e.g., from CD-SSB to NCD-SSB), how the UE should perform measurement is a problem to be solved.

The scheme provided by the application is described below with reference to the accompanying drawings.

The embodiment of the application provides a communication method, which can solve the problem 1 and the problem 2. The method is applicable to the communication system shown in fig. 1. The flow of the method will be described in detail with reference to the flowchart shown in fig. 4.

S401: the terminal device uses the first SSB associated with the first BWP to make measurements.

Wherein the first BWP may be a currently active BWP of the terminal device. The first SSB may or may not be within the first BWP bandwidth range.

The terminal device may use the first SSB associated with the first BWP to measure a service area and/or a neighbor area of the terminal device. The specific content may refer to S202, and will not be described herein.

S402: the terminal device receives the first information. The first information may indicate that the active BWP of the terminal device is switched to the second BWP.

Wherein the terminal device may receive the first information from the network device. The first information may be carried in existing signaling (e.g., radio resource control (radio resource control, RRC) reconfiguration message, downlink control information (Downlink Control Information, DCI), etc.), or may be carried in new signaling.

S403: the terminal device resets the first measurement. Wherein the first measurement may be a measurement using the first SSB.

In some possible approaches, the first measurement may be a measurement directly associated with the first SSB. Specifically, the first measurement object comprises a first SSB, the first measurement being associated with the first measurement object. For example, the terminal device performs measurement on the first SSB to obtain a measurement result of the service area and/or the neighboring cell (e.g., reference signal quality of the service area and/or the neighboring cell), uses the measurement result of the service area and/or the neighboring cell to evaluate whether the reporting criterion is satisfied, and/or performs measurement reporting.

In other possible ways, the first measurement may be a measurement using the measurement result of the first SSB. For example, the first measurement is associated with a second measurement object, the second measurement object includes a third SSB, and the terminal device performs measurement on the third SSB to obtain a measurement result of the neighboring cell 1 (for example, a reference signal quality of the neighboring cell 1); the terminal device performs measurement on the first SSB to obtain a measurement result of the service area (e.g., reference signal quality of the service area). The terminal device may determine whether the reference signal quality of the neighbor cell 1 is higher than the reference signal quality of the service area, thereby determining whether to report the measurement report. At this time, the first measurement is a measurement using the measurement result of the first SSB, specifically, a measurement using the measurement result of the first SSB and a measurement result using the third SSB.

In the present application, the signal quality may be signal strength. The parameters for representing or representing the signal strength may include at least one of: reference signal received power (reference signal receiving power, RSRP), reference signal received quality (reference signal receiving quality, RSRQ), and received signal strength indication (received signal strength indication, RSSI).

By the method, after the BWP is switched, the terminal equipment can reset the measurement of the first SSB related to the first BWP before the BWP is switched, so that the influence of the measurement of the first SSB on the measurement of the second SSB related to the second BWP after the BWP is switched can be avoided, and further reasonable measurement and/or measurement report can be realized when the BWP is switched.

Alternatively, in some possible implementations of embodiments of the application, the first measurement may comprise at least one of:

a: the measurement of the measurement result of the first SSB is used in the measurement event evaluation. The measurement result of the first SSB may be a measurement result of at least one cell obtained by measuring the first SSB. Wherein the at least one cell may comprise a service area and/or a neighbor area.

B: measurements using the measurement results of the first SSB reported in the measurement report; in other words, the measurement result of the first SSB is a measurement included in the measurement report. For details of the measurement result of the first SSB, reference may be made to a, and details thereof will not be repeated herein.

By means of the method, after the BWP is switched, the terminal equipment can reset measurement of measurement results using the first SSB, which are involved in measurement event evaluation and/or measurement report, so that the influence of the measurement using the first SSB on the measurement using the second SSB, which is associated with the switched second BWP, can be avoided, and reasonable measurement and/or measurement report can be achieved when the BWP is switched.

Optionally, in some possible implementations of embodiments of the present application, S403 may include at least one of:

c: the terminal device resets the measurement event evaluation of the first measurement.

For example, before a BWP handover, the terminal device starts an evaluation timer according to a measurement made using the first SSB (e.g. CD-SSB) (i.e. an evaluation state is started, for details reference is made to problem 1); when receiving the first information for handover activation BWP, the evaluation timer does not timeout, i.e. an evaluation state of cell measurement start based on SSB associated with pre-handover BWP is ongoing; at this point, the terminal device may reset the ongoing evaluation state.

By this method, the terminal device can reset the evaluation state started based on the measurement performed by the first SSB (i.e., solve problem 1) when switching BWP, so that the accuracy of measurement event evaluation and measurement report can be improved, and RRM performed by the network device based on inaccurate measurement report can be avoided.

D: and the terminal equipment resets the report of the first measurement and reports the report.

For example, before BWP handover, the terminal device reports a measurement report according to the measurement performed using the first SSB (e.g., CD-SSB) (for details, reference may be made to problem 2); when receiving the first information for switching the activated BWP, the terminal device may reset the reporting information when the measurement is performed using the first SSB.

By the method, the terminal equipment can reset the reporting information when the first SSB is used for cell measurement (namely, solve the problem 2) during the BWP switching, so that the influence of the measurement of the first SSB on the measurement of the second SSB related to the second BWP after the switching can be avoided, the reasonable measurement reporting during the BWP switching can be realized, and the network equipment is prevented from carrying out RRM based on inaccurate measurement reports.

Alternatively, in some possible implementations of embodiments of the present application, in S403, the terminal device may reset the first measurement by at least one of:

e: the terminal device deletes or empties the cells in the first cell list.

Wherein the first cell list may comprise one or more cells; the one or more cells are cells in the first measurement for which the measurement result meets the reporting criteria. Specific content of the reporting criteria may refer to S201 and S202, and the repetition is not repeated. Furthermore, the reporting criteria may be conditions or requirements that should be met when the terminal device sends a measurement report to the network device, in other words, the reporting criteria may trigger the terminal device to send a measurement report.

F: the terminal device deletes the first cell list. The specific content of the first cell list may refer to E, and will not be described herein.

G: the terminal device resets or stops the first timer.

Wherein resetting the first timer may be to set the timing of the first timer to an initial value. The initial value of the first timer may be a timing duration of the first timer. The timing duration of the first timer may be preset, or may be notified to the terminal device by other communication devices (e.g., network devices).

Optionally, the first timer is used to evaluate whether the first measurement meets the reporting criteria, e.g. the first timer is the evaluation timer in S202.

In addition, the timing duration of the first timer may be a duration for which the first measurement continuously satisfies the reporting criteria, for example, the first duration in S202.

H: the terminal device resets the counter.

Wherein the counter may be used to indicate the number of times the terminal device has sent the measurement report of the first measurement. For example, the initial value of the counter is 0, and the counter is incremented by 1 every time the terminal device transmits a measurement report.

The initial value of the counter may be 0 or another set value. The initial value of the counter may be preset, or may be notified to the terminal device for other communication devices (e.g., network devices). The terminal device can add 1 to the counter or add other set values when sending the measurement report each time; in other words, the accumulated value of the counter may be 1, or may be another set value.

As previously described, the terminal device may transmit a maximum of N measurement reports. By resetting the counter, after the BWP is switched, the terminal device can count the number of times of sending the measurement report again, so as to avoid that the measurement report cannot be reported to the measurement result of the second SSB because the number of times of the measurement report of the first measurement reaches N times, and further avoid misleading to the network device.

I: the period report timer (e.g., the period report timer in S201) is stopped, suspended, or reset.

The resetting the period report timer may be setting the timing of the period report timer to an initial value. The initial value of the period report timer may be a timing duration of the period report timer. The timing duration of the periodic report timer may be notified to the terminal device for the network device.

Alternatively, the terminal device may perform at least one of E, F and G when the terminal device resets the measurement event evaluation of the first measurement; and/or when the terminal device resets the reporting of the measurement report of the first measurement, the terminal device may perform at least one of E, F, H and I.

The method provides a specific operation of resetting the first measurement, which is easy to implement.

Optionally, in some possible implementations of the embodiments of the present application, the method further includes:

S404: the terminal device uses the second SSB associated with the second BWP to make measurements.

Wherein the second SSB may or may not be within the second BWP bandwidth range.

In addition, the specific content of S404 may refer to S202, which is not described herein.

In addition, S404 may be performed after S402 or after S403.

By the method, after the BWP is switched, the terminal equipment can reset the measurement of the first SSB related to the first BWP before the BWP is switched and use the second SSB related to the second BWP to carry out the measurement, so that the influence of the measurement of the first SSB on the measurement of the second SSB related to the second BWP after the BWP is switched can be avoided, and further reasonable measurement and/or measurement report can be carried out during the BWP switching.

Alternatively, in some possible implementations of embodiments of the application, the second SSB is different from the first SSB.

In some possible approaches, the frequency point of the first SSB may be different from the frequency point of the second SSB, and/or the subcarrier spacing (sub-carrier spacing) of the first SSB may be different from the subcarrier spacing of the second SSB. The frequency point of the SSB may be a center frequency point of the SSB, or may be a frequency point offset from the center frequency point by a first value. The first value may be a positive number, a negative number, or 0. The first value may be preset, or may be notified to the terminal device by another communication device (e.g., a network device). In this case, the first SSB and the second SSB may be both CD-SSB or NCD-SSB.

In other possible approaches, the type of first SSB is different from the type of second SSB. For example, the first SSB is a CD-SSB and the second SSB is an NCD-SSB; alternatively, the first SSB is NCD-SSB and the second SSB is CD-SSB.

In addition, the second SSB being different from the first SSB may be the condition of step S403, that is, when the second SSB is different from the first SSB, the terminal device resets the first measurement.

By this method, when SSBs before and after the BWP is switched are different, the terminal device resets the measurement using the first SSB associated with the first BWP before the BWP is switched after the BWP is switched, thereby ensuring the accuracy of the measurement.

The embodiment of the application provides a communication method, which can solve the problem 3. The method is applicable to the communication system shown in fig. 1. The flow of the method will be described in detail with reference to the flowchart shown in fig. 5.

S501: the terminal device uses the first SSB associated with the first BWP to make measurements.

S502: the terminal equipment receives the first information; the first information may indicate that the active BWP of the terminal device is switched to the second BWP.

The specific content of S501-S502 may refer to S401-S402, and will not be described here.

S503: the terminal device stops or suspends (may also be referred to as pauses) measurements associated with a first measurement object, the first measurement object comprising a first SSB; and/or the terminal device associates the measurement associated with the first measurement object to a second measurement object, the second measurement object comprising a second SSB associated with a second BWP.

Wherein the terminal device stops or suspends (may also be referred to as pauses) the specific content of the measurement associated with the first measurement object may refer to S804; and is not developed here.

Alternatively, in some possible implementations of the embodiments of the present application, "associating the measurement associated with the first measurement object to the second measurement object" in S503 may include:

and the terminal equipment associates the measurement reporting configuration associated with the first measurement object to the second measurement object. The measurement reporting configuration may be the reporting configuration in S201.

By this method, after switching BWP, the terminal device may associate the measurement report configuration associated with the first measurement object to the second measurement object, the first measurement object containing the first SSB, the second measurement object containing the second SSB associated with the second BWP. In this way, even if the second SSB has no associated measurement report configuration, the terminal device may use the second SSB to perform measurement through the measurement report configuration associated with the first measurement object, so that reasonable measurement and/or measurement report may be performed when the BWP is switched (i.e., the problem 3 is solved).

In addition, by the method, the network equipment only needs to send one set of reporting configuration to the terminal equipment aiming at a plurality of SSBs, so that transmission resources can be saved, and signaling overhead can be saved.

Optionally, in some possible implementations of the embodiments of the present application, the measurement associated with the first measurement object includes at least one of:

a1 event, A2 event, A3 event, A5 event, B2 event.

In other words, the measurement report configuration associated with the first measurement object may be at least one of: a1 event, A2 event, A3 event, A5 event, B2 event.

Wherein, the entry conditions of the A1 event are as follows: the signal quality of the service area is above the second threshold.

The entry conditions for the A2 event are: the signal quality of the service area is below a third threshold.

The entry conditions for the A3 event are: the difference between the signal quality of the neighbor cell and the signal quality of the service cell is greater than a fourth threshold; in other words, the signal quality of the neighbor cell is higher than the signal quality of the service cell by an offset, which is the fourth threshold. The service area may be a Special Cell (SpCell), i.e. a Primary Cell (PCell) and/or a Primary secondary Cell (Primary Secondary Cell, PSCell).

The entry conditions for the A5 event are: the signal quality of the serving cell is below the fifth threshold and the signal quality of the neighbor cell is above the sixth threshold. The service area may be a SpCell, i.e., a PCell and/or a PSCell.

The entry conditions for the B2 event are: the signal quality of the serving area is below a seventh threshold and the signal quality of the inter-RAT neighbor is above an eighth threshold. Wherein the service area may be a PCell.

Alternatively, in the entering condition of any of the above events, the signal quality may be a reference signal quality. In addition, the signal quality may be signal strength. The parameters for representing or representing the signal strength may include at least one of: RSRP, RSRQ, and RSSI.

In some possible approaches, the frequency point of the first SSB may be different from the frequency point of the second SSB, and/or the subcarrier spacing of the first SSB may be different from the subcarrier spacing of the second SSB. The frequency point of the SSB may be a center frequency point of the SSB, or may be a frequency point offset from the center frequency point by a first value. The first value may be a positive number, a negative number, or 0. The first value may be preset, or may be notified to the terminal device by another device (e.g., a network device). In this case, the first SSB and the second SSB may be both CD-SSB or NCD-SSB.

In addition, the second SSB is different from the first SSB, that is, when the second SSB is different from the first SSB, the terminal device performs S503.

By this method, when SSBs before and after switching BWP are different, the terminal device performs S503 after switching BWP, thereby ensuring accuracy of measurement.

The embodiment of the application provides a communication method, which is one possible implementation of the method shown in fig. 4, and can be used to solve the problem 1. The method is applicable to the communication system shown in fig. 1. The flow of the method will be specifically described below with reference to the flow chart shown in fig. 6, taking the first SSB as the CD-SSB and the second SSB as the NCD-SSB, and taking the terminal device as the UE as an example.

S601: the network device sends an RRC reconfiguration message (rrcrecon field) to the UE.

The RRC reconfiguration message includes measurement configuration information, and configuration content indicated by the measurement configuration information may include: CD-SSB measurement configuration and/or NCD-SSB measurement configuration. The specific content of the measurement configuration information may refer to the measurement configuration parameters in S201, which are not described herein.

S602: the UE saves measurement configuration information from the network device and transmits an RRC reconfiguration complete message (rrcrecon configuration complete) to the network device.

S603: the UE currently activates BWP (e.g., the first BWP in S401) to associate with CD-SSB, and the UE performs measurement and/or measurement event evaluation based on CD-SSB (may also be referred to as based on CD-SSB frequency points).

S604: based on the measurement result of the CD-SSB frequency point, the UE determines that the measurement result of the cell (e.g., the service area or the neighbor area) satisfies the measurement event configured in the measurement configuration information (e.g., satisfies the entry condition of the event included in the reporting criterion in the measurement configuration information), and starts a timer T8.

The timer T8 may be the evaluation timer in S202 and/or the first timer in S403. The timing duration of the timer T8 may be the first duration in S403. The timing duration of T8 may be configured for the network device.

In addition, the specific content of S604 may refer to S202, which is not described herein.

S605: the network device transmits DCI to the UE.

The DCI may include first information for indicating BWP handover. The switched active BWP (e.g., the second BWP in S402) associates the NCD-SSB. The specific content of the first information may refer to S402, which is not described herein.

S606: after the active BWP of the UE switches to the second BWP, the UE may reset the current evaluation state based on the CD-SSB measurement result.

Optionally, the UE may perform at least one of:

stopping or restarting the running timer;

deleting the first cell list;

deleting or clearing cells in the first cell list;

and deleting the cell history measurement result.

The specific content of S606 may refer to S403, and will not be described herein.

S607: the UE performs measurement using the NCD-SSB associated with the activated BWP (e.g., the second BWP in S404) after the handover, and performs measurement event evaluation.

S608: based on the measurement results of the NCD-SSB, the UE determines that the measurement results of the cell (service area or neighbor area) satisfy the measurement event configured in the measurement configuration information (e.g., satisfy the entry condition of the event included in the reporting criterion in the measurement configuration information), and starts a timer T9.

Wherein the timing duration of T9 is configurable by the network device.

The specific content of S608 may refer to S202, and will not be described herein.

S609: during the operation of the timer T9, the UE determines that the measurement results of the cells all satisfy the measurement event configured in the measurement configuration information. The timer T9 expires and the UE transmits a measurement report (measuremet report) to the network device, the measurement report being a measurement report based on NCD-SSB evaluation.

In this method, when the same cell configures both CD-SSB and NCD-SSB measurements, if the active BWP before and after the BWP handover associates different SSBs, the UE may be in progress (e.g., an evaluation timer is running) based on the state of the SSB evaluation before the handover, and the UE may reset the ongoing evaluation state and re-perform measurement event evaluation and measurement report reporting based on the SSB associated with the currently active BWP. In this way, when a new SSB is used due to BWP handover, the UE can timely stop the ongoing evaluation state based on the pre-handover SSB evaluation result, thereby increasing the UE's performability (in other words, the UE is easy to implement the method), avoiding the UE sending a measurement report based on the pre-handover SSB to the network device, and thus avoiding misguidance to the network device.

The embodiment of the present application provides a communication method, which is another possible implementation of the method shown in fig. 4, and may be used to solve the problem 2. The method is applicable to the communication system shown in fig. 1. The flow of the method will be specifically described below with reference to the flow chart shown in fig. 7, taking the first SSB as the CD-SSB and the second SSB as the NCD-SSB, and taking the terminal device as the UE as an example.

S701: the network device sends an RRC reconfiguration message (rrcrecon field) to the UE.

S702: the UE saves measurement configuration information from the network device and transmits an RRC reconfiguration complete message (rrcrecon configuration complete) to the network device.

S703: the UE currently activates BWP (e.g., the first BWP in S401) to associate with CD-SSB, and the UE performs measurement and measurement event evaluation based on CD-SSB (may also be referred to as based on CD-SSB frequency points).

S704: based on the measurement result of the CD-SSB frequency point, the UE determines that the measurement result of the cell (e.g., the service area or the neighbor area) satisfies the measurement event configured in the measurement configuration information (e.g., satisfies the entry condition of the event included in the reporting criterion in the measurement configuration information), and starts a timer T8.

Specific details of S701-S704 are referred to S601-S604, and are not described here.

S705: during the operation of the timer T8, the UE determines that the measurement results of the cells all satisfy the measurement event configured in the measurement configuration information. The timer T8 expires and the UE transmits a first measurement report (measuremet report) to the network device, the first measurement report being a measurement report based on the CD-SSB evaluation.

In addition, the UE may update the maintained reported cell list (i.e., the first cell list in S403) and increment the count of reported measurement reports by 1 (e.g., increment the counter in S403 by 1).

S706: the network device transmits DCI to the UE.

The DCI may include first information, where the first information is used to trigger BWP handover. The switched active BWP (e.g., the second BWP in S402) associates the NCD-SSB. The specific content of the first information may refer to S402, which is not described herein.

S707: after the BWP of the UE switches to the second BWP, the UE may reset the history report information based on the measurement result of the CD-SSB.

Optionally, the UE may perform at least one of:

deleting the first cell list;

deleting or clearing cells in the first cell list;

deleting the number of reported measurement reports; for example, a counter for indicating the number of times the UE transmits a measurement report based on the measurement result of the CD-SSB is reset.

The running period report timer is stopped, paused or reset.

The specific content of S707 may refer to the description of S403, which is not described herein.

S708: the UE performs measurement using the NCD-SSB associated with the activated BWP (e.g., the second BWP in S404) after the handover and re-performs measurement event evaluation.

S709: based on the measurement result of the NCD-SSB frequency point, the UE determines that the measurement result of the cell (service area or neighbor area) satisfies the measurement event configured in the measurement configuration information (for example, satisfies the entry condition of the event included in the reporting criterion in the measurement configuration information), and starts a timer T9.

Wherein the timing duration of T9 is configurable by the network device.

The specific content of S709 may refer to S202, and will not be described here again.

S710: during the operation of the timer T9, the UE determines that the measurement results of the cells all satisfy the measurement event configured in the measurement configuration information. The timer T9 expires and the UE transmits a second measurement report (measuremet report) to the network device, the second measurement report being a measurement report based on the NCD-SSB evaluation.

In this method, when the same cell configures both CD-SSB and NCD-SSB measurements, if BWP is activated before and after the BWP handover to associate different SSBs, the UE may reset the historical reporting information based on the SSB evaluation before handover. Thus, when a new SSB is used due to BWP switching, the UE can timely clear the historical report information based on the SSB frequency point before switching, and avoid the residual of the historical report information from affecting the report of the new SSB measurement event, thereby ensuring that the new measurement report can be triggered to be reported after switching to the new SSB.

The embodiment of the application provides a communication method, which is one possible implementation of the method shown in fig. 5, and can be used to solve the problem 3. The method is applicable to the communication system shown in fig. 1. The flow of the method will be specifically described below with reference to the flow chart shown in fig. 8, taking the first SSB as the CD-SSB and the second SSB as the NCD-SSB, and taking the terminal device as the UE as an example.

S801: the network device sends an RRC reconfiguration message (rrcrecon field) to the UE.

The RRC reconfiguration message includes measurement configuration information, and configuration content indicated by the measurement configuration information may include: CD-SSB measurement configuration and/or NCD-SSB measurement configuration.

In some possible scenarios (hereinafter referred to as scenario 1), for cell 1 (e.g., a service area), the measurement configuration information may indicate the following information: the measurement object 1 comprises a CD-SSB, the reporting configuration (ReportConfig) associated with the measurement object 1 is a first reporting configuration, and the measurement identifier associated with the measurement object 1 is measId1; the measurement object 2 contains an NCD-SSB, the reporting configuration (ReportConfig) associated with the measurement object 2 is the second reporting configuration, and the measurement identifier associated with the measurement object 2 is MeasId2. In other words, for cell 1 CD-SSB and NCD-SSB based measurements, the network device associates both measurements with the reporting configuration, the association can be seen in fig. 9A. The first reporting configuration and the second reporting configuration may be the same or different.

In other possible scenarios (hereinafter referred to as scenario 2), for cell 1 (e.g., a service area), the measurement configuration information may indicate the following information: the measurement object 1 comprises a CD-SSB, the reporting configuration (ReportConfig) associated with the measurement object 1 is a first reporting configuration, and the measurement identifier associated with the measurement object 1 is measId1; the measurement object 2 contains NCD-SSB measurements, and the measurement object 2 is not associated with reporting configuration and measurement identity. In other words, for the measurement of cell 1 based on CD-SSB and NCD-SSB, the network device associates reporting configuration only for CD-SSB, and the association relationship can be seen from the upper diagram of fig. 9B.

S802: the UE currently activates BWP (e.g., the first BWP in S501) to associate with CD-SSB, and the UE performs measurement and measurement event evaluation based on CD-SSB (may also be referred to as based on CD-SSB frequency points).

S803: the network device transmits DCI to the UE.

Wherein, the DCI may include first information, and the first information may be used to trigger BWP handover. The switched active BWP (e.g., the second BWP in S503) associates the NCD-SSB.

Specific contents of S802-S803 can refer to S501-S502, and will not be described here.

S804: the UE stops or suspends (may also be referred to as pauses) measurements associated with a first measurement object, the first measurement object comprising a CD-SSB; and/or the terminal device associates the measurement associated with the first measurement object to a second measurement object, the second measurement object comprising a second BWP-associated NCD-SSB.

S804 is described below for scenario 1 and scenario 2, respectively.

For scenario 1:

the measurement object (MeasObj) 2 corresponding to the NCD-SSB frequency point after the BWP is switched is associated with a reporting configuration (ReportConfig) and a measurement identifier (MeasId), and the UE may use the ReportConfig (i.e., the second reporting configuration) and the MeasId (i.e., the MeasId 2) associated with the measurement object 2 to perform measurement event evaluation and/or perform measurement report reporting. Meanwhile, the UE may stop or ignore measurement of the measurement object 1 corresponding to the CD-SSB frequency point before handover, for example, perform measurement event evaluation without using ReportConfig (i.e. the first reporting configuration) and MeasId (i.e. MeasId 1) associated with the measurement object 1, and/or perform measurement report reporting.

For scenario 2:

the measurement object (MeasObj) 2 corresponding to the NCD-SSB frequency point after BWP handover is not associated with reporting configuration (ReportConfig) and measurement identifier (MeasId), and the UE may associate the measurement object 2 with ReportConfig (i.e., first reporting configuration) and measurement identifier (i.e., measId 1) before BWP handover (association relationship may refer to the lower diagram of fig. 9B), and perform measurement event evaluation and/or perform measurement report reporting based on the adjusted association relationship. Meanwhile, the UE may stop or ignore the measurement event evaluation and the measurement report reporting performed by using the measurement object 1 corresponding to the CD-SSB frequency point before the BWP is switched.

In scenario 2, an example is shown in which the UE adjusts the association between MeasObj and ReportConfig and measurement identity. In addition, the adjustment of the association relationship between MeasObj and ReportConfig and measurement identity may also be configured based on the network device. For example, after or when the network device notifies the UE of switching BWP, the network device may transmit information indicating the adjusted association relationship to the UE; and the UE acquires the adjusted association relation based on the information, evaluates the measurement event based on the adjusted association relation, and/or reports the measurement report.

In the method, the UE can evaluate the measurement event and report the measurement report of the service area based on the SSB associated with the current activated BWP, and ignore or stop the evaluation of the measurement event and report the measurement report of the service area based on the SSB measurement before the BWP is switched, thereby defining the action of the UE on the evaluation of the measurement event and report the measurement report of the service area and enhancing the executable performance of the UE.

In addition, after the BWP is switched, the UE may ignore or stop the measurement event evaluation and the measurement report reporting of the service area based on the SSB measurement before the switching, so that the unnecessary measurement of the first SSB can be avoided, that is, the redundant evaluation and the reporting behavior of the UE are avoided, the accuracy of the measurement event evaluation and the measurement report reporting is improved, and further, the misguidance to the network device can be avoided.

Further, after switching BWP, the UE may associate measurement of pre-switch SSB association to post-switch SSB. In this way, even if the SSB after the handover does not have an associated measurement configuration, the UE may use the SSB after the handover to perform measurement through measurement associated with the SSB before the handover, so that reasonable measurement and/or measurement reporting may be performed when the BWP is handed over.

Based on the same inventive concept as the method embodiments of fig. 4 to 8, an embodiment of the present application provides a communication device through fig. 10, which can be used to perform the functions of the relevant steps in the above-described method embodiments. The functions may be implemented by hardware, or may be implemented by software or hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above. The communication apparatus has a structure as shown in fig. 10, and includes a communication unit 1001 and a processing unit 1002. The communication apparatus 1000 may be applied to a terminal device in the communication system shown in fig. 1, and may implement the communication method provided in the embodiments and examples of the present application. The functions of the respective units in the communication apparatus 1000 are described below.

The communication unit 1001 is configured to receive and transmit data.

The communication unit 1001 may be implemented by a transceiver, for example, a mobile communication module. The mobile communication module may include at least one antenna, at least one filter, a switch, a power amplifier, a low noise amplifier (low noise amplifier, LNA), etc.

The processing unit 1002 may be configured to support the communication device 1000 to perform the processing actions in the method embodiments described above. The processing unit 1002 may be implemented by a processor. For example, the processor may be a central processing unit (central processing unit, CPU), but may also be other general purpose processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), field programmable gate arrays (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general purpose processor may be a microprocessor, but in the alternative, it may be any conventional processor.

In an implementation manner, the communication apparatus 1000 is applied to a terminal device in the embodiment of the present application shown in fig. 4, or a UE in the embodiment of the present application shown in fig. 6 or fig. 7. The specific functions of the processing unit 1002 in this embodiment will be described below.

The processing unit 1002 is configured to:

using a first SSB associated with a first BWP;

receiving the first information through the communication unit 1001; the first information indicates to switch an active BWP of the terminal device to a second BWP;

resetting the first measurement; the first measurement is a measurement using a first SSB.

Optionally, the first measurement includes: using a measurement of the measurement result of the first SSB in a measurement event evaluation; and/or, a measurement using the measurement result of the first SSB reported in a measurement report.

Optionally, the processing unit 1002 is specifically configured to:

resetting the measurement event evaluation of the first measurement; and/or the number of the groups of groups,

and resetting the reporting of the measurement report of the first measurement.

Optionally, the processing unit 1002 is specifically configured to perform at least one of the following operations:

deleting cells in the first cell list; the first cell list includes one or more cells; the one or more cells are cells in which measurement results in the first measurement meet reporting criteria;

resetting or stopping the first timer; the first timer is used for evaluating whether the first measurement meets a reporting criterion;

and resetting a counter, wherein the counter is used for indicating the number of times that the terminal equipment sends the measurement report of the first measurement.

Optionally, the processing unit 1002 is further configured to: measurements are made using a second SSB associated with the second BWP.

Optionally, the second SSB is different from the first SSB.

Optionally, the first SSB is CD-SSB, and the second SSB is NCD-SSB; alternatively, the first SSB is NCD-SSB and the second SSB is CD-SSB; alternatively, the first SSB and the second SSB are both CD-SSBs; alternatively, the first SSB and the second SSB are both NCD-SSB.

In an implementation manner, the communication apparatus 1000 is applied to a terminal device in the embodiment of the present application shown in fig. 5, or a UE in the embodiment of the present application shown in fig. 8. The specific functions of the processing unit 1002 in this embodiment will be described below.

The processing unit 1002 is configured to:

using a first SSB associated with a first BWP;

stopping or suspending measurement associated with a first measurement object, the first measurement object including the first SSB; and/or associating the first measurement object associated measurement to a second measurement object containing the second BWP associated second SSB.

Optionally, the processing unit 1002 is specifically configured to: and associating the measurement report configuration associated with the first measurement object to a second measurement object.

Optionally, the second SSB is different from the first SSB.

It should be noted that, in the above embodiments of the present application, the division of the modules is merely schematic, and there may be another division manner in actual implementation, and in addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or may exist separately and physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Based on the same technical concept, the embodiment of the present application provides a communication device through the illustration of fig. 11, which can be used to perform the steps related to the above-mentioned method embodiment. The communication device may be applied to a terminal device in the communication system shown in fig. 1, and may implement the communication method provided in the embodiment and example of the present application, and has the function of the communication apparatus shown in fig. 10. Referring to fig. 11, the communication device 1100 includes: a communication module 1101, a processor 1102 and a memory 1103. Wherein the communication module 1101, the processor 1102 and the memory 1103 are interconnected.

Optionally, the communication module 1101, the processor 1102 and the memory 1103 are connected to each other by a bus 1104. The bus 1104 may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus, among others. The buses may be classified as address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in FIG. 11, but not only one bus or one type of bus.

The communication module 1101 is configured to receive and send data, and implement communication interaction with other devices. For example, the communication module 1101 may be implemented by a physical interface, a communication module, a communication interface, and an input/output interface.

The processor 1102 may be used to support the communication device 1100 in performing the processing actions described above in the method embodiments. When the communication device 1100 is used to implement the method embodiments described above, the processor 1102 may also be used to implement the functions of the processing unit 1002 described above. The processor 1102 may be a CPU, but may also be other general purpose processors, DSP, ASIC, FPGA or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general purpose processor may be a microprocessor, but in the alternative, it may be any conventional processor.

In an implementation manner, the communication device 1100 is applied to a terminal device in the embodiment of the present application shown in fig. 4, or a UE in the embodiment of the present application shown in fig. 6 or fig. 7. The processor 1102 is specifically configured to:

using a first SSB associated with a first BWP;

receiving, by the communication module 1101, the first information; the first information indicates to switch an active BWP of the terminal device to a second BWP;

In an implementation manner, the communication device 1100 is applied to a terminal device in the embodiment of the present application shown in fig. 5, or a UE in the embodiment of the present application shown in fig. 8. The processor 1102 is specifically configured to:

using a first SSB associated with a first BWP;

The specific function of the processor 1102 may refer to the description of the communication method provided in the above embodiments and examples of the present application, and the specific function description of the communication device 1000 in the embodiment of the present application shown in fig. 10 is not repeated here.

The memory 1103 is used for storing program instructions, data, etc. In particular, the program instructions may comprise program code comprising computer-operating instructions. The memory 1103 may include RAM, and may also include non-volatile memory (non-volatile memory), such as at least one magnetic disk memory. The processor 1102 executes program instructions stored in the memory 1103 and uses data stored in the memory 1103 to implement the above functions, thereby implementing the communication method provided in the above embodiment of the present application.

It is to be appreciated that the memory 1103 in FIG. 11 of the present application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile memory may be a ROM, a Programmable ROM (PROM), an Erasable Programmable EPROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be RAM, which acts as external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Based on the above embodiments, the present application also provides a computer program product (which may also be referred to as a computer program) which, when run on a computer, causes the computer to perform the method provided by the above embodiments.

Based on the above embodiments, the present application also provides a computer-readable storage medium having stored therein a computer program which, when executed by a computer, causes the computer to perform the method provided in the above embodiments.

Wherein a storage medium may be any available medium that can be accessed by a computer. Taking this as an example but not limited to: the computer readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

Based on the above embodiments, the present application further provides a chip, where the chip is configured to read a computer program stored in a memory, and implement the method provided in the above embodiments.

Based on the above embodiments, the embodiments of the present application provide a chip system, which includes a processor for supporting a computer apparatus to implement the functions related to each device in the above embodiments. In one possible design, the chip system further includes a memory for storing programs and data necessary for the computer device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In summary, the embodiments of the present application provide a communication method, apparatus, and device, where in the method, a terminal device may use a first SSB associated with a first BWP to perform measurement; after receiving the first information, the terminal device may reset the first measurement. Wherein the first information may indicate that the active BWP of the terminal device is switched to the second BWP; the first measurement is a measurement using the first SSB. In this way, after the BWP is switched, the terminal device resets the measurement using the first SSB, so that the influence of the measurement using the first SSB on the measurement using the second SSB associated with the second BWP can be avoided, and further, reasonable measurement and/or measurement reporting can be implemented when the BWP is switched.

It should be understood that in embodiments of the present application, the terminal device and/or the network device may perform some or all of the steps in the embodiments. These steps or operations are merely examples, and embodiments of the present application may perform other operations or variations of the various operations. Furthermore, the various steps may be performed in a different order than presented in the various embodiments, and it is possible that not all of the operations in the embodiments of the application may be performed. Moreover, the sequence number of each step does not mean the sequence of execution sequence, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

In various embodiments of the application, where no special description or logic conflict exists, terms and/or descriptions between the various embodiments are consistent and may reference each other, and features of the various embodiments may be combined to form new embodiments based on their inherent logic.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A communication method applied to a terminal device, comprising:

using a first synchronization signal block SSB associated with a first partial bandwidth BWP;

receiving first information; the first information indicates to switch an active BWP of the terminal device to a second BWP;

2. The method of claim 1, wherein the first measurement comprises:

using a measurement of the measurement result of the first SSB in a measurement event evaluation; and/or the number of the groups of groups,

and measuring the measurement result using the first SSB reported in a measurement report.

3. The method of claim 1 or 2, wherein resetting the first measurement comprises:

and resetting the reporting of the measurement report of the first measurement.

4. A method according to any of claims 1 to 3, wherein resetting the first measurement comprises at least one of:

5. The method of any one of claims 1 to 4, further comprising:

measurements are made using a second SSB associated with the second BWP.

6. The method of claim 5, wherein,

the second SSB is different from the first SSB.

7. The method according to claim 1 to 6, wherein,

the first SSB is SSB CD-SSB defined by a cell, and the second SSB is SSB NCD-SSB defined by a non-cell; or alternatively

The first SSB is NCD-SSB, and the second SSB is CD-SSB; or alternatively

The first SSB and the second SSB are both CD-SSB; or alternatively

The first SSB and the second SSB are both NCD-SSB.

8. A communication method applied to a terminal device, comprising:

9. The method of claim 8, wherein associating the measurement associated with the first measurement object to a second measurement object comprises:

and associating the measurement report configuration associated with the first measurement object to a second measurement object.

10. The method of claim 8 or 9, wherein,

the second SSB is different from the first SSB.

11. The method according to any one of claim 8 to 10, wherein,

The first SSB is NCD-SSB, and the second SSB is CD-SSB; or alternatively

The first SSB and the second SSB are both CD-SSB; or alternatively

The first SSB and the second SSB are both NCD-SSB.

12. A communication device, comprising:

a communication unit for receiving and transmitting data;

a processing unit for performing the method according to any of claims 1-11 by means of said communication unit.

13. A communication device, comprising:

a memory for storing instructions;

a processor for invoking and executing the instructions from the memory to cause the communication device to perform the method of any of claims 1-11.

14. A communication system, comprising:

terminal device for implementing the method according to any of claims 1-11;

and the network equipment is used for communicating with the terminal equipment.

15. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program which, when run on a computer, causes the computer to perform the method of any of claims 1-11.

16. A computer program product, characterized in that the computer program product, when run on a computer, causes the computer to perform the method according to any of claims 1-11.

17. A chip, characterized in that the chip is coupled to a memory, the chip reading a computer program stored in the memory, performing the method of any of claims 1-11.