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US 11,310,801 B2Granted
Communication method, core network device, and access network device
AssigneeHuawei Technologies Co., Ltd.
InventorsFang Yu, Yan Li, Hui Ni
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to communication methods, core network devices, and access network devices. One example method includes receiving, by a core network device, a first message from an access network device, where the first message carries information used to indicate a slice supported by the access network device, and determining, by the core network device, a location area identity list of user equipment UE based on the information used to indicate the slice supported by the access network device.
Claims20
A communication method, comprising:
- receiving, by a core network device, a first message from an access network device, wherein the first message carries information used to indicate a slice supported by the access network device;
- in response to receiving the first message, sending, by the core network device, a second message to the access network device, wherein the second message carries information used to indicate a slice supported by the core network device;
- receiving, by the core network device, an initial attach request message from the access network device, wherein the initial attach request message is sent by user equipment (UE) and forwarded by the access network device, and wherein the initial attach request message carries configured network slice selection assistance information (NSSAI);
- and
- in response to receiving the initial attach request message from the access network device:
- determining, by the core network device, accepted NSSAI of the UE based on the configured NSSAI;
- and
- determining, by the core network device, a location area identity list of the UE based on the accepted NSSAI of the UE and the information used to indicate the slice supported by the access network device, wherein the location area identity list of the UE includes one or more access network devices to which a paging message of the UE is sent.
5 more elements
A communication method, comprising:
- sending, by an access network device, a connection setup request message to a core network device, wherein the connection setup request message carries information about a slice supported by the access network device, wherein the information about the slice supported by the access network device is used by the core network device to determine a location area identity list of user equipment (UE), and wherein the location area identity list of the UE includes one or more access network devices to which a paging message of the UE is sent;
- receiving, by the access network device, a connection setup response message from the core network device, wherein the connection setup response message carries information about a slice supported by the core network device;
- receiving, by the access network device, an initial attach request message from the UE, wherein the initial attach request message carries configured network slice selection assistance information (NSSAI);
- in response to receiving the initial attach request message from the UE, selecting, by the access network device, the core network device for the UE based on the information about the slice supported by the core network device, wherein the information about the slice supported by the core network device includes an end-to-end (E2E) slice identity (ID), and the location area identity list of the UE is determined based on the E2E slice ID and a correspondence between an E2E slice ID and NSSAI;
- and
- in response to selecting the core network device for the UE, forwarding, by the access network device, the initial attach request message to the core network device.
3 more elements
A core network device, comprising:
- a transceiver, the transceiver configured to:
- receive a first message from an access network device, wherein the first message carries information used to indicate a slice supported by the access network device;
- in response to receiving the first message, send a second message to the access network device, wherein the second message carries information used to indicate a slice supported by the core network device;
- receive an initial attach request message from the access network device, wherein the initial attach request message is sent by user equipment (UE) and forwarded by the access network device, and wherein the initial attach request message carries configured network slice selection assistance information (NSSAI);
- at least one processor;
- and
- one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to:
- in response to receiving the initial attach request message from the access network device:
- determine accepted NSSAI of the UE based on the configured NSSAI;
- and
- determine a location area identity list of the UE based on the accepted NSSAI of the UE and the information used to indicate the slice supported by the access network device, wherein the location area identity list of the UE includes one or more access network devices to which a paging message of the UE is sent.
8 more elements
Dependencies are inferred from the claim text.