US-12621697-B2 - Communication method and apparatus to optimize a measurement policy

US12621697B2US 12621697 B2US12621697 B2US 12621697B2US-12621697-B2

Abstract

A communication method and apparatus to optimize a measurement policy are described. The apparatus may receive a measurement configuration sent by a network device. The measurement configuration may include a first identity and a first period of the first identity. The apparatus sends a measurement report to the network device when the first period expires. The measurement report may include the first identity and a measurement result of the first identity. The measurement result of the first identity includes a measurement result of at least one second identity.

Inventors

Miao Wang
Xi Xie
Junren Chang

Assignees

HUAWEI TECHNOLOGIES CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20221014
Priority Date: 20200417

Claims (20)

1 . A communication method, wherein the method comprises: receiving a measurement configuration comprising a first identity, a first period of the first identity, and a second identity list associated with the first identity; and sending a measurement report of the first identity when the first period expires, wherein the measurement report comprises the first identity and a measurement result of the first identity, and the measurement result of the first identity comprises a measurement result of at least one second identity in the second identity list.
2 . The method according to claim 1 , wherein the measurement result of the at least one second identity is obtained through measurement within the first period.
3 . The method according to claim 1 , wherein the at least one second identity is associated with a total quantity of reporting times, and the method further comprises: increasing a quantity of reporting times of the at least one second identity by a specified value; and wherein the measurement result of the first identity comprising the measurement result of the at least one second identity comprises: the measurement result of the first identity comprises a measurement result of a second identity, in the second identity list, whose quantity of reporting times is less than or equal to the total quantity of reporting times.
4 . The method according to claim 1 , wherein the measurement report further comprises a measurement result of a serving cell of a terminal device.
5 . The method according to claim 1 , wherein the method further comprises: starting a first timer, wherein a duration of the first timer is the first period; and the sending the measurement report when the first period expires comprises: when the first timer times out, sending the measurement report, and restarting the first timer.
6 . The method according to claim 1 , wherein: in response to one or more second identity in the at least one second identity being associated with an indication for reporting a strongest neighboring cell of a serving cell of a terminal device, the measurement report further comprises a measurement result of the strongest neighboring cell of the serving cell of the terminal device; or in response to one or more second identity in the at least one second identity being associated with an indication for reporting a specified measurement quantity type, the measurement report further comprises a measurement result of the specified measurement quantity type of a serving cell of a terminal device.
7 . A communication apparatus, comprising: a memory; and at least one processor coupled with the memory configured to cause the communication apparatus to: receive a measurement configuration comprising a first identity, a first period of the first identity, and a second identity list associated with the first identity; and send a measurement report of the first identity when the first period expires, the measurement report comprises the first identity and a measurement result of the first identity, and the measurement result of the first identity comprises a measurement result of at least one second identity in the second identity list.
8 . The apparatus according to claim 7 , wherein the measurement result of the at least one second identity is obtained through measurement within the first period.
9 . The apparatus according to claim 7 , wherein the at least one second identity is associated with a total quantity of reporting times, and the at least one processor is further configured to cause the communication apparatus to increase a quantity of reporting times of the at least one second identity by a specified value; and wherein the measurement result of the first identity comprising the measurement result of the at least one second identity comprises: the measurement result of the first identity comprises a measurement result of a second identity, in the second identity list, whose quantity of reporting times is less than or equal to the total quantity of reporting times.
10 . The apparatus according to claim 7 , wherein the measurement report further comprises a measurement result of a serving cell of the communication apparatus.
11 . The apparatus according to claim 7 , wherein the at least one processor is further configured to cause the communication apparatus to: start a first timer, wherein a duration of the first timer is the first period; and when the first timer times out, send the measurement report of the first identity, and restart the first timer.
12 . The apparatus according to claim 7 , wherein: in response to one or more second identity in the at least one second identity being associated with an indication for reporting a strongest neighboring cell of a serving cell of the communication apparatus, the measurement report further comprises a measurement result of the strongest neighboring cell of the serving cell of the communication apparatus; or in response to one or more second identity in the at least one second identity being associated with an indication for reporting a specified measurement quantity type, the measurement report further comprises a measurement result of the specified measurement quantity type of a serving cell of the communication apparatus.
13 . The apparatus according to claim 7 , wherein in response to one or more second identity in the at least one second identity being associated with a first value, and the first value indicates a maximum quantity of beams reported by the communication apparatus, and the measurement report further comprises a measurement result of a beam, of the serving cell, whose quantity does not exceed a second value and the second value is determined based on the first value.
14 . The apparatus according to claim 13 , wherein the second value is a maximum value in a plurality of first values; or the second value is a minimum value in the plurality of first values; or in response to only one second identity in the at least one second identity being associated with the first value, the second value is the same as the first value.
15 . A communication apparatus, comprising: a memory; and at least one processor coupled with the memory configured to cause the communication apparatus to: send a measurement configuration comprising a first identity, a first period of the first identity, and a second identity list associated with the first identity; receive a measurement report of the first identity, wherein the measurement report comprises the first identity and a measurement result of the first identity, and the measurement result of the first identity comprises a measurement result of at least one second identity in the second identity list; and process the received measurement report.
16 . The apparatus according to claim 15 , wherein the measurement result of the at least one second identity is obtained through measurement within the first period.
17 . The method according to claim 1 , wherein: in response to one or more second identity in the at least one second identity being associated with a first value, and the first value indicating a maximum quantity of beams reported by a terminal device, the measurement report further comprises a measurement result of a beam, of the serving cell, whose quantity does not exceed a second value and the second value is determined based on the first value.
18 . The method according to claim 17 , wherein the second value is a maximum value in a plurality of first values; or the second value is a minimum value in the plurality of first values; or in response to only one second identity in the at least one second identity being associated with the first value, the second value is the same as the first value.
19 . The method according to claim 1 , wherein the method further comprises: performing measurement based on the at least one second identity to obtain the measurement result.
20 . The apparatus according to claim 7 , wherein the at least one processor is further configured to cause the communication apparatus to: perform measurement based on the at least one second identity to obtain the measurement result.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/CN2021/086833, filed on Apr. 13, 2021, which claims priority to Chinese Patent Application No. 202010304349.X, filed on Apr. 17, 2020. The disclosures of the aforementioned applications are hereby incorporated by reference in their entireties. TECHNICAL FIELD This application relates to the wireless communications field, and more specifically, to a communication method and apparatus. BACKGROUND In a communication system, to perform radio resource management (RRM), a network device may configure and enable user equipment (UE) in a radio resource control (RRC) connected mode (RRC_CONNECTED) to perform measurement based on a measurement configuration and report a measurement result. The network device may perform a corresponding RRM policy based on a measurement report reported by the UE. For example, the network device may indicate, based on the measurement report reported by the UE, the UE to perform cell handover. The measurement configuration sent by the network device includes a measurement identity, a measurement object, a report configuration, a measurement quantity configuration, a measurement gap, and the like. The measurement identity is used to associate the measurement object and the report configuration. The measurement object may be an object measured by the UE, for example, a frequency. The report configuration may include a trigger type for the UE to report the measurement result, for example, periodic reporting and event-triggered reporting. The periodic reporting may be, for example, that the network device or a protocol specifies that the UE reports the measurement result every specified period. The event-triggered reporting may be, for example, that the UE reports the measurement result to the network device when the measurement result obtained through measurement meets a trigger condition. The trigger condition may include an A-type event, for example, an A1 event, an A2 event, an A3 event, an A4 event, an A5 event, and an A6 event, and may further include a B-type event, for example, a B1 event and a B2 event. The type-A event is an intra-radio access technology (intra-RAT) event, and the type-B event is an inter-RAT event. Currently, after obtaining the measurement result through measurement based on the measurement identity, the UE may report a measurement report corresponding to the measurement identity. The RRM policy performed by the network device depends on a sequence of measurement reports of the UE. As a result, the network device may make an inappropriate decision. For example, the network device configures measurement of the A3 event and measurement of the B2 event for the UE. After the UE performs measurement, a measurement result of the B2 event first meets the trigger condition, and the UE first reports a measurement report of the B2 event to the network device. After receiving the measurement result of the B2 event, the network device indicates the UE to perform inter-radio access technology handover (inter-RAT handover). The UE falls back to use a previous-generation wireless communications technology, for example, falls back from 5G to 4G, or falls back from 4G to 3G. However, the UE may report a measurement report of the A3 event shortly after reporting the measurement report of the B2 event. The measurement report of the A3 event indicates that the UE has an intra-RAT neighboring cell whose quality meets an access condition. Therefore, the network does not need to allow the UE to perform the inter-RAT handover. Further, when reporting the measurement report to the network device, the UE currently may add a measurement result of a serving cell. When the serving cell of the UE does not change, each measurement report reported by the UE carries the measurement result of the serving cell, resulting in redundant reporting. In addition, if a plurality of measurement identities all meet the trigger condition, measurement reports of the plurality of measurement identities are simultaneously reported, easily resulting in a signaling storm. SUMMARY This application provides a communication method and apparatus, to optimize a measurement policy. According to a first aspect, a communication method is provided. The method may be performed by a terminal device, for example, terminal devices such as a mobile phone, a tablet computer, or an in-vehicle terminal. The terminal device may receive a measurement configuration sent by a network device. The measurement configuration may include a first identity and a first period of the first identity. The first identity herein may be associated with one or more second identities. The second identity may be a measurement identity sent by the network device to the terminal device. The terminal device sends a measurement report to the network device when the first period expires. The measurement report may include the first identity an