Security capability negotiation method, system, and equipment
AssigneeHauwei Technologies Co., Ltd.
InventorChengdong He
Life of this patent
Estimating the term…
Abstract
A security capability negotiation method is applicable to perform security capability negotiation during a mobile network handover. Moreover, a security capability negotiation system is also provided. Consistent with the provided system and method, it may be unnecessary for the MME to know the security capability of the corresponding eNB in a certain manner during a handover from a 2G/3G network to an LTE network. Meanwhile, during the handover from the LTE network to the 3G network, the SGSN does not need to introduce new requirements.
Claims18
A method during a handover of a user equipment (UE) from a first network to a second network, comprising:
- receiving, by an access network entity of the second network, a message from a core network (CN) entity of the second network,
- wherein the message from the CN entity of the second network includes a radio resource control (RRC) algorithm and a user plane (UP) algorithm supported by the UE;
- selecting, by the access network entity of the second network, an RRC algorithm and an UP algorithm supported by both the UE and the access network entity of the second network,
- wherein the selected RRC algorithm and the selected UP algorithm are according to the RRC algorithm and the UP algorithm supported by the UE and an RRC algorithm and an UP algorithm supported by the access network entity of the second network;
- and
- sending, by the access network entity of the second network, the selected RRC algorithm and the selected UP algorithm to the CN entity of the second network.
An access network entity of a second network comprising:
- a transmitter, a receiver and a processor, wherein
- the receiver is configured to cooperate with the processor to receive a message from a core network (CN) entity of the second network during a handover of a user equipment (UE) from a first network to the second network,
- wherein the message from the CN entity of the second network includes a radio resource control (RRC) algorithm and a user plane (UP) algorithm supported by the UE;
- the processor is configured to select an RRC algorithm and an UP algorithm supported by both the UE and the access network entity of the second network,
- wherein the selected RRC algorithm and the selected UP algorithm are according to the RRC algorithm and the UP algorithm supported by the UE and an RRC algorithm and an UP algorithm supported by the access network entity of the second network;
- and
- the transmitter is configured to cooperate with the processor to send the selected RRC algorithm and the selected UP algorithm to the CN entity of the second network.
A core network (CN) entity of a second network comprising a receiver, a transmitter and a processor, wherein the receiver and transmitter are configured to cooperate with the processor to:
- receive a message from a CN entity of a first network during a handover of a user equipment (UE) from the first network to the second network, wherein the message from the CN entity of the first network includes a radio resource control (RRC) algorithm and a user plane (UP) algorithm supported by the UE;
- send the RRC algorithm and the UP algorithm supported by the UE to an access network entity of the second network;
- receive from the access network entity of the second network, a selected RRC algorithm and a selected UP algorithm supported by both the UE and the access network entity of the second network;
- and
- send the selected RRC algorithm and the selected UP algorithm to the CN entity of the first network.
A system of a second network, the system comprising:
- an access network entity and a core network (CN) entity, wherein,
- the CN entity is configured to
- receive a first message from a CN entity of a first network during a handover of a user equipment (UE) from the first network to the second network,
- wherein the first message from the CN entity of the first network includes a radio resource control (RRC) algorithm and a user plane (UP) algorithm supported by the UE,
- send the RRC algorithm and the UP algorithm supported by the UE to the access network entity;
- receive from the access network entity, a selected RRC algorithm and a selected UP algorithm supported by both the UE and the access network entity of the second network;
- and
- send the selected RRC algorithm and the selected UP algorithm to the CN entity of the first network;
- and
- the access network entity is configured to
- receive a second message from the CN entity,
- wherein the second message from the CN entity includes the RRC algorithm and the UP algorithm supported by the UE;
- select the RRC algorithm and the UP algorithm supported by both the UE and the access network entity,
- wherein the selected RRC algorithm and the selected UP algorithm are according to the RRC algorithm and the UP algorithm supported by the UE and an RRC algorithm and an UP algorithm supported by the access network entity;
- and
- send the selected RRC algorithm and the selected UP algorithm to the CN entity.
Dependencies are inferred from the claim text.