Use of media timestamp to indicate delays in push-to-talk over cellular group calls
First Claim
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1. A method (100) to indicate delays in a PoC group call, comprising:
- offsetting a timestamp (124) in a data stream being transmitted to a late listener (216) to indicate a delay (124) from when the data stream was transmitted to a first listener (214), wherein the data stream includes data convertible to speech; and
transmitting the data stream including the offset timestamp to the late listener (124, 126, 216).
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Abstract
A method to indicate delays in a push-to-talk over cellular (PoC) group call may include offsetting a timestamp in a data stream being transmitted to a late listener to indicate a delay from when the data stream was transmitted to a first listener. The data stream includes data convertible to speech. The method may also include transmitting the data stream including the offset timestamp to the late listener.
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Citations
23 Claims
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1. A method (100) to indicate delays in a PoC group call, comprising:
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offsetting a timestamp (124) in a data stream being transmitted to a late listener (216) to indicate a delay (124) from when the data stream was transmitted to a first listener (214), wherein the data stream includes data convertible to speech; and transmitting the data stream including the offset timestamp to the late listener (124, 126, 216). - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method (100) to indicate delays in a PoC group call, comprising:
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receiving a data stream (126); and indicating to a listener (216) that speech generated from the data stream is delayed (132) in response to a timestamp in the data stream (124) being offset from a timestamp in a first data stream (122) transmitted to a first listener (122, 214) to accept an invitation to the PoC group call. - View Dependent Claims (9, 10, 11)
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12. A communications device (300), comprising:
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a PoC application (308) to detect if a data stream is delayed; and a user interface (312) to alert a listener that speech generated from the data stream is delayed in response to the PoC application (308) detecting that the data stream is delayed, wherein the PoC application (308) comprises a component to read a timestamp with a marker bit (122, 126) and to provide the alert (132) that speech generated from the data stream is delayed in response to the timestamp in the data stream being offset. - View Dependent Claims (13, 14)
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15. A system (200), comprising:
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a PoC server (208) to offset a timestamp in a data stream (124) being transmitted to a late listener (216) to indicate a delay from when the data stream was transmitted to a first listener (214) to accept an invitation to a PoC group call, wherein the data stream includes data convertible to speech; and a base station (212) to transmit the data stream (124, 126) to the late listener (216). - View Dependent Claims (16, 17, 18, 19)
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20. A computer program product (100) to indicate delays in a PoC group call, the computer program product (100) comprising:
a non-transitory computer useable medium (304) having computer useable program code (306) embodied therein, the non-transitory computer useable medium (304) comprising; computer useable program code (308, 128) configured to detect if a data stream is delayed; computer useable program code (308, 132) configured to alert a listener in response to detecting that the data stream is delayed (128); and computer useable program code (308) configured to read a timestamp with a marker bit (124) and to provide an indication that speech generated from the data stream is delayed in response to the timestamp in the data stream being offset (132). - View Dependent Claims (21, 22, 23)
Specification