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US 11,115,915 B2Granted
Network selection method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsChong Lou, Mingzeng Dai, Rui Wang
Life of this patent
Estimating the term…
Abstract
A network selection method and an apparatus are provided, so that a core network to be accessed by next-generation UE via an eLTE eNB can be determined. The method includes: a terminal device receives a first message from a radio access network device, wherein the first message carries access reference information, and generates first information based on the access reference information, wherein the first information indicating that the terminal device requests to access a first network, and sends a second message to the radio access network device, wherein the second message carries the first information.
Claims20
A network selection method, comprising:
- receiving, by a terminal device, a first message from a radio access network device, wherein the first message carries access reference information;
- generating, by the terminal device, a first information based on the access reference information, wherein the first information indicates that the terminal device requests to access a first network;
- sending, by the terminal device, a second message to the radio access network device, wherein the second message carries the first information;
- determining, by a first non-access stratum of the terminal device, that the terminal device requests to access the first network;
- sending, by the first non-access stratum of the terminal device, a first indication to an access stratum of the terminal device, wherein the first indication comprises any one or any combination of the following information:
- a selected public land mobile network (PLMN), radio access technology information corresponding to the selected PLMN, core network type information, or a list of equivalent PLMNs, and the core network type information comprises any one or any combination of the following information:
- selected core network type information, accessible core network type information, or information about accessible types of core networks arranged in a priority order, wherein a function of the first non-access stratum of the terminal device comprises one or more of the following functions:
- PLMN selection, cell selection/reselection, or core network type selection;
- obtaining, by the access stratum of the terminal device, the access reference information;
- and
- searching, by the access stratum of the terminal device, for a suitable cell according to the first indication, and, camping, by the terminal device, on the suitable cell.
8 more elements
An apparatus for a terminal device, comprising:
- an interface circuitry, configured to receive a first message from a radio access network device, wherein the first message carries access reference information;
- a processor, configured to generate a first information based on the access reference information received by the interface circuitry, wherein the first information indicates that the terminal device requests to access a first network;
- and
- the interface circuitry, configured to send a second message to the radio access network device, wherein the second message carries the first information,
- wherein the processor is further configured to determine, for a first non-access stratum of the terminal device, that the terminal device requests to access the first network and send a first indication to an access stratum of the terminal device, wherein the first indication comprises any one or any combination of the following information:
- a selected public land mobile network (PLMN), radio access technology information corresponding to the selected PLMN, core network type information, or a list of equivalent PLMNs, and the core network type information comprises any one or any combination of the following information:
- selected core network type information, accessible core network type information, or information about accessible types of core networks arranged in a priority order, wherein a function of the first non-access stratum of the terminal device comprises one or more of the following functions:
- PLMN selection, cell selection/reselection, or core network type selection, and for the access stratum of the terminal device, obtain the access reference information, search for a suitable cell according to the first indication, and camp on the suitable cell.
5 more elements
A non-transitory computer-readable storage medium, comprising one or more stored instructions, and the one or more stored instructions are executed by a terminal device for performing operations comprising:
- receiving, by a terminal device, a first message from a radio access network device, wherein the first message carries access reference information;
- generating, by the terminal device, a first information based on the access reference information, wherein the first information indicates that the terminal device requests to access a first network;
- sending, by the terminal device, a second message to the radio access network device, wherein the second message carries the first information;
- determining, by a first non-access stratum of the terminal device, that the terminal device requests to access the first network;
- and
- sending, by the first non-access stratum of the terminal device, a first indication to an access stratum of the terminal device, wherein the first indication comprises any one or any combination of the following information:
- a selected public land mobile network (PLMN), radio access technology information corresponding to the selected PLMN, core network type information, or a list of equivalent PLMNs, and the core network type information comprises any one or any combination of the following information:
- selected core network type information, accessible core network type information, or information about accessible types of core networks arranged in a priority order, wherein a function of the first non-access stratum of the terminal device comprises one or more of the following functions:
- PLMN selection, cell selection/reselection, or core network type selection;
- obtaining, by the access stratum of the terminal device, the access reference information;
- and
- searching, by the access stratum of the terminal device, for a suitable cell according to the first indication, and, camping, by the terminal device, on the suitable cell.
9 more elements
Dependencies are inferred from the claim text.