公开(公告)号：US20230224993A1

公开(公告)日：2023-07-13

申请号：US18149214

申请日：2023-01-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Junren Chang ,  Lei Han ,  Lingping Wang ,  Shulan Feng ,  Jianghua Liu

IPC: H04W76/18 ,  H04W76/15 ,  H04W8/22

CPC classification number: H04W76/18 ,  H04W76/15 ,  H04W8/22

Abstract: This application relates to the field of communication technologies, and discloses a communication method and apparatus. The method includes: A terminal device receives indication information from a first access network device. The indication information is used to indicate to fall back a capability of the terminal device to a first protocol version. The terminal device communicates, based on the indication information, with the first access network device by using first capability information. A protocol version corresponding to the first capability information is lower than or equal to the first protocol version. In this method, because a network device can explicitly indicate to fall back the capability of the terminal device to the first protocol version, the terminal device can specially reduce the capability, so as to quickly resolve a communication problem caused by incompatibility between the terminal device and the access network device.

公开(公告)号：US20230139024A1

公开(公告)日：2023-05-04

申请号：US18148509

申请日：2022-12-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Junren Chang ,  Lei Han ,  Lingping Wang ,  Shulan Feng ,  Jianghua Liu

IPC: H04W28/02 ,  H04W48/16

Abstract: This application relates to the field of communication technologies, and discloses a communication method and apparatus. The method includes: A terminal device receives an identifier of a filtering protocol version from an access network device, and then sends first capability information of the terminal device to the access network device based on the filtering protocol version. In this method, the terminal device may report capability information based on the filtering protocol version sent by the access network device. Compared with a manner in which the terminal device directly reports the capability information, this method can effectively reduce a communication problem caused by mismatch between a protocol version supported by the terminal device and a protocol version supported by the access network device and/or a protocol version supported by a core network device.