EP-4742734-A1 - COMMUNICATION METHOD AND APPARATUS

EP4742734A1EP 4742734 A1EP4742734 A1EP 4742734A1EP-4742734-A1

Abstract

A communication method and apparatus are provided, and relate to the field of communication technologies. The method includes: receiving first information from a first network device; sending the first information to a second network device; receiving a second MDT configuration from the second network device; and performing MDT measurement based on the second MDT configuration. The first information indicates a first MDT configuration, the first MDT configuration includes an MDT configuration corresponding to a terminal device, and the second MDT configuration is obtained based on the first MDT configuration. In the method provided in embodiments of this application, after the terminal device enters a connected state from an idle state, the terminal device may send, to the newly connected second network device, the first information indicating the MDT configuration corresponding to the terminal device, so that the second network device obtains, by using the first information, the MDT configuration via the first network device previously connected to the terminal device, and delivers the MDT configuration to the terminal device, thereby maintaining MDT continuity.

Inventors

CHENG, Wenjie
GENG, Tingting
ZENG, YU
YANG, XUDONG
RAPONE, Damiano

Assignees

Huawei Technologies Co., Ltd.

Dates

Publication Date: 20260513
Application Date: 20240625

Claims (20)

A communication method, wherein the method comprises: receiving first information from a first network device, wherein the first information indicates a first minimization of drive-test MDT configuration, and the first MDT configuration comprises an MDT configuration corresponding to a terminal device; sending the first information to a second network device; receiving a second MDT configuration from the second network device, wherein the second MDT configuration is obtained based on the first MDT configuration; and performing MDT measurement based on the second MDT configuration.
The method according to claim 1, wherein the method further comprises: storing the first information before disconnecting from the first network device.
The method according to claim 1 or 2, wherein the sending the first information to the second network device comprises: sending the first information to the second network device after establishing a connection to the second network device.
The method according to any one of claims 1 to 3, wherein the second MDT configuration comprises an immediate minimization of drive-test immediate MDT configuration.
The method according to any one of claims 1 to 4, wherein the first information comprises an index of the first MDT configuration.
The method according to any one of claims 1 to 5, wherein the method further comprises: receiving second information from the first network device, wherein the second information indicates first MDT data, and the first MDT data is obtained through measurement based on the first MDT configuration; and sending the second information to the second network device.
The method according to claim 6, wherein the second information comprises an index of the first MDT data.
A communication method, wherein the method comprises: receiving first information from a second network device, wherein the first information indicates a first MDT configuration, and the first MDT configuration comprises an MDT configuration corresponding to a terminal device; and sending the first MDT configuration to the second network device.
The method according to claim 8, wherein the method further comprises: sending the first information to the terminal device.
The method according to claim 8 or 9, wherein the method further comprises: receiving third information from a core network device or an operation, administration, and maintenance OAM, wherein the third information indicates to store the first MDT configuration.
The method according to claim 11, wherein the third information comprises an identifier of the terminal device and an index of the first MDT configuration.
The method according to claim 11, wherein the third information further comprises retention duration of the first MDT configuration and/or an index range of the first MDT configuration.
The method according to any one of claims 8 to 12, wherein the method further comprises: receiving second information from the second network device, wherein the second information indicates first MDT data, and the first MDT data is obtained through measurement based on the first MDT configuration; and sending the first MDT data to the second network device.
The method according to any one of claims 8 to 13, wherein the method further comprises: sending the second information to the terminal device, wherein the second information indicates the first MDT data, and the first MDT data is obtained through measurement based on the first MDT configuration.
The method according to any one of claims 8 to 14, wherein the method further comprises: receiving fourth information from the core network device or the OAM, wherein the fourth information indicates to store the first MDT data, and the first MDT data is obtained through measurement based on the first MDT configuration.
The method according to claim 15, wherein the fourth information comprises the identifier of the terminal device and an index of the first MDT data.
The method according to claim 16, wherein the fourth information further comprises retention duration of the first MDT data and/or an index range of the first MDT data.
A communication method, wherein the method comprises: sending first information to a first network device, wherein the first information indicates a first MDT configuration, and the first MDT configuration comprises an MDT configuration corresponding to a terminal device; receiving the first MDT configuration from the first network device; determining a second MDT configuration based on the first MDT configuration; and sending the second MDT configuration to the terminal device.
The method according to claim 18, wherein the method further comprises: receiving the first information from the terminal device.
The method according to claim 18 or 19, wherein the method further comprises: sending second information to the first network device, wherein the second information indicates first MDT data, and the first MDT data is obtained through measurement based on the first MDT configuration; and receiving the first MDT data from the first network device.

Description

This application claims priority to Chinese Patent Application No. 202311008107.6, filed with the China National Intellectual Property Administration on August 10, 2023 and entitled "COMMUNICATION METHOD AND APPARATUS", which is incorporated herein by reference in its entirety. TECHNICAL FIELD Embodiments of this application relate to the field of communication technologies, and in particular, to a communication method and apparatus. BACKGROUND In the field of mobile communication, a mobile communication network may be monitored through minimization of drive-test (minimization of drive-test, MDT). MDT is to find problems such as weak coverage, coverage holes, and overshoot coverage in the mobile communication network by using a measurement report that is reported by a terminal device and that carries location information, to optimize the mobile communication network. In some scenarios, for example, in an artificial intelligence (artificial intelligence, AI) model training process, the terminal device is expected to perform continuous MDT, so that a network device can obtain continuous MDT data, to improve a network optimization effect. However, if a radio resource control (radio resource control, RRC) state of the terminal device changes, the terminal device may not be able to continuously perform MDT measurement. SUMMARY Embodiments of this application provide a communication method and apparatus, so that a terminal device can maintain MDT continuity. To achieve the foregoing objective, the following technical solutions are used in embodiments of this application. According to a first aspect, an embodiment of this application provides a communication method. The method may be performed by a terminal device, or may be performed by a module (for example, a processor, a chip, or a chip system) used in the terminal device, or may be implemented by a logical node, a logical module, or software that can implement all or a part of functions of the terminal device. The method includes: receiving first information from a first network device; sending the first information to a second network device; receiving a second MDT configuration from the second network device; and performing MDT measurement based on the second MDT configuration. The first information indicates a first MDT configuration, and the first MDT configuration includes an MDT configuration corresponding to a terminal device. The second MDT configuration is obtained based on the first MDT configuration. It can be learned that, in the method provided in this embodiment of this application, after the terminal device enters a connected (connected) state from an idle (idle) state, the terminal device may send, to the newly connected second network device, the first information indicating the MDT configuration corresponding to the terminal device, so that the second network device obtains, by using the first information, the MDT configuration via the first network device previously connected to the terminal device, and delivers the MDT configuration to the terminal device. This avoids a case that the terminal device stops MDT measurement because the newly connected network device does not send the second MDT configuration to the terminal device, thereby maintaining MDT continuity, to obtain continuous MDT data, so as to meet a requirement for obtaining continuous MDT data in some scenarios. For example, the network device obtains the continuous MDT data for AI model training, to improve AI model training accuracy and improve an effect of applying an AI model. In a possible implementation, the first information may be stored before the terminal device disconnects from the first network device. In this way, after the terminal device disconnects from the first network device, MDT interruption caused by a failure of the terminal device to send the first information to the second network device due to release of the first information is avoided. In a possible implementation, the first information may be sent to the second network device after a connection to the second network device is established, so that the terminal device can obtain the second MDT configuration from the second network device, to maintain continuity of the MDT measurement. In a possible implementation, the second MDT configuration may include an immediate minimization of drive-test (Immediate MDT) configuration. For example, the terminal device may implement measurement of information or parameters such as a data amount of the terminal device, an internet protocol (internet protocol, IP) throughput, a packet transmission delay, a packet loss rate, and a processing delay by using the immediate MDT configuration in the second MDT configuration. In a possible implementation, the first information may include an index of the first MDT configuration. It may be understood that the first network device may store MDT configurations corresponding to a plurality of terminal devices. The index of the