US 2005/0089007 A1 · System and method for performing handoffs of mobile station-to-mobile station packet data calls in a wireless network

Abstract

A wireless network capable of providing a MS-MS packet data call between a source mobile station (MS) and a destination mobile station (MS). The wireless network comprises: i) a first base station that wirelessly communicates with the source mobile station; ii) a second base station that wirelessly communicates with the destination mobile station; iii) a mobile switching center that connects the first and second base stations; and iv) a local Internet protocol (IP) network that transfers data packets associated with the MS-MS packet data call directly between the first and second base stations via a first packet data bearer connection. The first base station receives a first message from the source mobile station indicating that the source mobile station is to be handed off to a third base station. In response to the first message, the first base station initiates establishment of a second packet data bearer connection on the local IP network for transferring the data packets associated with the MS-MS packet data call directly between the second and third base stations.

Claims22

Dependent claims

A wireless network capable of providing a MS-MS packet data call between a source mobile station (MS) and a destination mobile station (MS), said wireless network comprising:

a first base station capable of wirelessly communicating with said source mobile station;
a second base station capable of wirelessly communicating with said destination mobile station;
a mobile switching center capable of connecting said first and second base stations;
and
a local Internet protocol (IP) network capable of transferring data packets associated with said MS-MS packet data call directly between said first and second base stations via a first packet data bearer connection, wherein said first base station is capable of receiving a first message from said source mobile station indicating that said source mobile station is to be handed off to a third base station, and wherein said first base station, in response to said first message, initiates establishment of a second packet data bearer connection on said local IP network for transferring said data packets associated with said MS-MS packet data call directly between said second and third base stations.

2 more elements

For use in a wireless network comprising:

i) a first base station that wirelessly communicates with a source mobile station (MS);
ii) a second base station that wirelessly communicates with a destination mobile station (MS);
iii) a mobile switching center that connects the first and second base stations;
and iv) a local Internet protocol (IP) network that transfers data packets associated with the MS-MS packet data call directly between the first and second base stations via a first packet data connection, a method of handling a MS-MS packet data call between the source mobile station and the destination mobile station comprising the steps of:
receiving in the first base station a first message from the source mobile station indicating that the source mobile station is to be handed off to a third base station;
and
in response to the first message, initiating establishment of a second packet data bearer connection on the local IP network for transferring the data packets associated with the MS-MS packet data call directly between the second and third base stations.

4 more elements

Dependencies are inferred from the claim text.

System and method for performing handoffs of mobile station-to-mobile station packet data calls in a wireless network

Life of this patent

System and method for performing handoffs of mobile station-to-mobile station packet data calls in a wireless network

Life of this patent

Abstract

Claims22