US 8,478,886 B2 · Method and apparatus for optimization of SIGCOMP UDVM performance

Abstract

A mobile communication system that utilizes multiple access technologies achieves multiple session registrations by deriving a plurality of extended unique device identifications from a specific unique device identification (e.g., private user identification (PIID) stored on a subscriber identity module (SIM)) assigned to a user equipment. Each of the plurality of extended unique device identifications have the benefit of allowing multiple registrations with one or more access networks while allowing a home subscriber system to detect the one unique device identification embedded in the extended unique device identifications for authentication purposes. Thereby, a large population of deployed UEs and access network infrastructure may benefit without replacement by allowing a UE to maintain session continuity when transitioning between access networks, to select a preferred access technology when in overlapping coverage areas without session interruption, or to maintain multiple sessions (e.g., simultaneous Voice over IP (VoIP) and media streaming) with different access networks.

Claims32

Dependent claims

A user equipment configured to support multiple session initiation protocol registrations, comprising:

means for registering a first public user identity of the user equipment with a first internet protocol address of the user equipment in connection with a first session initiation protocol session that is established with a first access network, wherein registering the first public user identity with the first internet protocol address comprises using a first emulated private identity calculated from a private identity of the user equipment;
and
means for registering the first public user identity of the user equipment with a second internet protocol address of the user equipment in connection with a second session initiation protocol session that is established with a second access network, wherein registering the first public user identity with the second internet protocol address comprises using a second emulated private identity calculated from the private identity of the user equipment;
wherein the first public user identity is registered with the second internet protocol address while the first public user identity is registered with the first internet protocol address.

1 more element

An apparatus configured to support multiple session initiation protocol registrations, comprising:

means for receiving a request for a first session initiation protocol registration via a first access network, wherein the request for the first session initiation protocol registration comprises a first public user identity of a user equipment, a first internet protocol address of the user equipment;
means for receiving a request for a second session initiation protocol registration via a second access network, wherein the request for the second session initiation protocol registration comprises the first public user identity of the user equipment and a second internet protocol address of the user equipment, wherein the request for the second session initiation protocol registration is received while the first public user identity is registered with the first internet protocol address, wherein the request for the first session initiation protocol registration is received from a first proxy call session control function, and wherein the request for the second session initiation protocol registration is received from a second proxy call session control function;
means for simultaneously maintaining the first session initiation protocol registration and the second session initiation protocol registration if the request for the first session initiation protocol registration comprises a first registration identifier and the request for the second session initiation protocol registration comprises a second registration identifier;
means for overriding the first session initiation protocol registration if the request for the first session initiation protocol registration comprises the first registration identifier and the request for the second session initiation protocol registration also comprises the first registration identifier;
and
means for checking IP connectivity at the first proxy call session control function in response to receiving the request for the second session initiation protocol registration if the request for the first session initiation protocol registration comprises the first registration identifier and the request for the second session initiation protocol registration does not comprise a registration identifier.

3 more elements

A user equipment configured to support multiple session initiation protocol registrations, comprising:

circuitry configured to register a first public user identity of the user equipment with a first internet protocol address of the user equipment in connection with a first session initiation protocol session that is established with a first access network, and to register the first public user identity of the user equipment with a second internet protocol address of the user equipment in connection with a second session initiation protocol session that is established with a second access network;
wherein the first public user identity is registered with the second internet protocol address while the first public user identity is registered with the first internet protocol address;
wherein registering the first public user identity with the first internet protocol address comprises using a first emulated private identity calculated from a private identity of the user equipment;
and
wherein registering the first public user identity with the second internet protocol address comprises using a second emulated private identity calculated from the private identity of the user equipment.

2 more elements

An apparatus configured to support multiple session initiation protocol registrations, comprising:

circuitry configured to receive a request for a first session initiation protocol registration via a first access network and to receive a request for a second session initiation protocol registration via a second access network, wherein the request for the first session initiation protocol registration comprises a first public user identity of a user equipment and a first internet protocol address of the user equipment, wherein the request for the second session initiation protocol registration comprises the first public user identity of the user equipment and a second internet protocol address of the user equipment, wherein the request for the second session initiation protocol registration is received while the first public user identity is registered with the first internet protocol address, wherein the request for the first session initiation protocol registration is received from a first proxy call session control function, wherein the request for the second session initiation protocol registration is received from a second proxy call session control function, wherein the circuitry is also configured to simultaneously maintain the first session initiation protocol registration and the second session initiation protocol registration if the request for the first session initiation protocol registration comprises a first registration identifier and the request for the second session initiation protocol registration comprises a second registration identifier, to override the first session initiation protocol registration if the request for the first session initiation protocol registration comprises the first registration identifier and the request for the second session initiation protocol registration also comprises the first registration identifier, and to check IP connectivity at the first proxy call session control function in response to receiving the request for the second session initiation protocol registration if the request for the first session initiation protocol registration comprises the first registration identifier and the request for the second session initiation protocol registration does not comprise a registration identifier.

A method for supporting multiple session initiation protocol registrations, comprising:

registering a first public user identity of the user equipment with a first internet protocol address of the user equipment in connection with a first session initiation protocol session that is established with a first access network, wherein registering the first public user identity with the first internet protocol address comprises using a first emulated private identity calculated from a private identity of the user equipment;
and
registering the first public user identity of the user equipment with a second internet protocol address of the user equipment in connection with a second session initiation protocol session that is established with a second access network, wherein registering the first public user identity with the second internet protocol address comprises using a second emulated private identity calculated from the private identity of the user equipment;
wherein the first public user identity is registered with the second internet protocol address while the first public user identity is registered with the first internet protocol address.

1 more element

A method for supporting multiple session initiation protocol registrations, comprising:

receiving a request for a first session initiation protocol registration via a first access network, wherein the request for the first session initiation protocol registration comprises a first public user identity of a user equipment and a first internet protocol address of the user equipment;
receiving a request for a second session initiation protocol registration via a second access network, wherein the request for the second session initiation protocol registration comprises the first public user identity of the user equipment and a second internet protocol address of the user equipment, wherein the request for the second session initiation protocol registration is received while the first public user identity is registered with the first internet protocol address, wherein the request for the first session initiation protocol registration is received from a first proxy call session control function, and wherein the request for the second session initiation protocol registration is received from a second proxy call session control function;
simultaneously maintaining the first session initiation protocol registration and the second session initiation protocol registration if the request for the first session initiation protocol registration comprises a first registration identifier and the request for the second session initiation protocol registration comprises a second registration identifier;
overriding the first session initiation protocol registration if the request for the first session initiation protocol registration comprises the first registration identifier and the request for the second session initiation protocol registration also comprises the first registration identifier;
and
checking IP connectivity at the first proxy call session control function in response to receiving the request for the second session initiation protocol registration if the request for the first session initiation protocol registration comprises the first registration identifier and the request for the second session initiation protocol registration does not comprise a registration identifier.

3 more elements

A computer-program product for supporting multiple session initiation protocol registrations, the computer-program product comprising a non-transitory computer-readable medium having instructions thereon, the instructions comprising:

code for registering a first public user identity of a user equipment with a first internet protocol address of the user equipment in connection with a first session initiation protocol session that is established with a first access network, wherein registering the first public user identity with the first internet protocol address comprises using a first emulated private identity calculated from a private identity of the user equipment;
and
code for registering the first public user identity of the user equipment with a second internet protocol address of the user equipment in connection with a second session initiation protocol session that is established with a second access network, wherein registering the first public user identity with the second internet protocol address comprises using a second emulated private identity calculated from the private identity of the user equipment;
wherein the first public user identity is registered with the second internet protocol address while the first public user identity is registered with the first internet protocol address.

1 more element

code for receiving a request for a first session initiation protocol registration via a first access network, wherein the request for the first session initiation protocol registration comprises a first public user identity of a user equipment and a first internet protocol address of the user equipment;
code for receiving a request for a second session initiation protocol registration via a second access network, wherein the request for the second session initiation protocol registration comprises the first public user identity of the user equipment and a second internet protocol address of the user equipment, wherein the request for the second session initiation protocol registration is received while the first public user identity is registered with the first internet protocol address, wherein the request for the first session initiation protocol registration is received from a first proxy call session control function, and wherein the request for the second session initiation protocol registration is received from a second proxy call session control function;
code for simultaneously maintaining the first session initiation protocol registration and the second session initiation protocol registration if the request for the first session initiation protocol registration comprises a first registration identifier and the request for the second session initiation protocol registration comprises a second registration identifier;
code for overriding the first session initiation protocol registration if the request for the first session initiation protocol registration comprises the first registration identifier and the request for the second session initiation protocol registration also comprises the first registration identifier;
and
code for checking IP connectivity at the first proxy call session control function in response to receiving the request for the second session initiation protocol registration if the request for the first session initiation protocol registration comprises the first registration identifier and the request for the second session initiation protocol registration does not comprise a registration identifier.

3 more elements

Dependencies are inferred from the claim text.

Method and apparatus for optimization of SIGCOMP UDVM performance

Life of this patent

Method and apparatus for optimization of SIGCOMP UDVM performance

Life of this patent

Abstract

Claims32