Communication method and communications apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsFangyuan Zhu, Yan Li, Hui Ni
Life of this patent
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Abstract
A communication method includes sending, by a source mobility management network element in a first area, a first slice set for a home public land mobile network (PLMN) (HPLMN) of a terminal device to a target mobility management network element in a second area when handing over the terminal device from a source access network device in the first area to a target access network device in the second area, where the first slice set corresponds to a second slice set for the first area, and obtaining, by the target mobility management network element, a third slice set for the second area based on the first slice set.
Claims20
A communication method comprising:
- receiving, by a target network repository function network element in a second area from a source mobility management network element in a first area, a request message when handing over a terminal device from a source access network device in the first area to a target access network device in the second area;
- sending, by the target network repository function network element in response to the request message, an address of a target mobility management network element in the second area to the source mobility management network element;
- receiving, by the target mobility management network element from the source mobility management network element, a first slice set for a home public land mobile network (HPLMN) of the terminal device, wherein the first slice set corresponds to first allowed network slice selection assistance information of the terminal device in the first area;
- and
- obtaining, by the target mobility management network element, second allowed network slice selection assistance information of the terminal device in the second area based on the first slice set.
A communication system comprising:
- a target mobility management network element in a second area, wherein the target mobility management network element is coupled to a source mobility management network element in a first area, and wherein the target mobility management network element is configured to:
- receive a first slice set for a home land mobile network (HPLMN) of a terminal device from the source mobility management network element, wherein the first slice set corresponds to first allowed network slice selection assistance information of the terminal device in the first area;
- and
- obtain second allowed network slice selection assistance information of the terminal device in the second area based on the first slice set;
- and
- a target network repository function network element in the second area, wherein the target network repository function network element is configured to:
- receive, from the source mobility management network element, a request message when handing over the terminal device from a source access network device in the first area to a target access network device in the second area;
- and
- send, in response to the request message, an address of the target mobility management network element to the source mobility management network element.
Dependencies are inferred from the claim text.