Codec-specific handover thresholds
AssigneeT-Mobile USA, Inc.
InventorsMark McDiarmid, Jun Liu, Ming Shan Kwok
Life of this patent
Estimating the term…
Abstract
A handover procedure can be implemented using a codec-specific threshold as a triggering event for the handover procedure. A mobile device can initiate a communication session with a serving access point (AP). The mobile device can receive a codec established for the communication session, access a set of codec-specific thresholds stored in memory of the mobile device to determine a handover triggering threshold that is specific to the codec used for the communication session. The mobile device can measure a parameter of a radio signal from the serving AP, and when the measured parameter falls below the codec-specific threshold, a handover procedure can be initiated to transition the communication session to a target AP.
Claims20
A computer-implemented method comprising:
- receiving, from a mobile device, a registration message at a serving base station configured to provide access to an Internet Protocol (IP) Multimedia Subsystem (IMS) core;
- sending, by the serving base station, information to the mobile device that includes:
- a first codec-specific threshold in association with a first codec;
- and
- a second codec-specific threshold in association with a second codec, wherein the first codec-specific threshold and the second codec-specific threshold are different thresholds;
- receiving, from the mobile device, a session initiation message at the serving base station to establish a communication session for the mobile device;
- negotiating a codec for the communication session involving the mobile device;
- sending, by the serving base station, the codec to the mobile device;
- and
- terminating the communication session for the mobile device with the serving base station.
A cellular-based access point (AP) comprising:
- a processor;
- and
- memory storing computer-executable instructions that, when executed by the processor, cause the cellular-based AP to perform operations comprising:
- receiving, from a mobile device, a registration message;
- sending information to the mobile device that includes:
- a first codec-specific threshold in association with a first codec;
- and
- a second codec-specific threshold in association with a second codec, wherein the first codec-specific threshold and the second codec-specific threshold are different thresholds;
- receiving, from the mobile device, a session initiation message to establish a communication session for the mobile device;
- negotiating a codec for the communication session involving the mobile device;
- sending the codec to the mobile device;
- and
- terminating the communication session for the mobile device with the cellular-based AP.
One or more non-transitory computer-readable storage media of a serving base station, the one or more non-transitory computer-readable storage media storing computer-executable instructions that, when executed by one or more processors of the serving base station, cause the serving base station to perform operations comprising:
- receiving, from a mobile device, a registration message;
- sending information to the mobile device that includes:
- a first codec-specific threshold in association with a first codec;
- and
- a second codec-specific threshold in association with a second codec, wherein the first codec-specific threshold and the second codec-specific threshold are different thresholds;
- receiving, from the mobile device, a session initiation message to establish a communication session for the mobile device;
- negotiating a codec for the communication session involving the mobile device;
- sending the codec to the mobile device;
- and
- terminating the communication session for the mobile device with the serving base station.
Dependencies are inferred from the claim text.