Reducing latency in push to talk services
First Claim
1. A method of processing user speech data at a processing entity for transmission to a participant or participants in a push to talk session over a communications network, the method comprising, following initiation of a push to talk session, but prior to receipt by the entity of a session acceptance from the or each participant:
- analyzing the speech data to identify an initial period of silence; and
removing the initial period of silence from the speech data prior to sending the speech data to a receiving terminal of the or each other participant.
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Accused Products
Abstract
A method of processing user speech data for transmission to a participant or participants in a Push to talk Over Cellular (PoC) session over a cellular telephone network. The method comprises, detecting an initial period of silence in the initial talk burst of the session, and removing that period of silence from the speech data prior to replaying of the speech data to the or each other participant. These signal processing steps may be carried out at one of the initiating terminal, the receiving terminal, or the IMS core.
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Citations
18 Claims
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1. A method of processing user speech data at a processing entity for transmission to a participant or participants in a push to talk session over a communications network, the method comprising, following initiation of a push to talk session, but prior to receipt by the entity of a session acceptance from the or each participant:
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analyzing the speech data to identify an initial period of silence; and removing the initial period of silence from the speech data prior to sending the speech data to a receiving terminal of the or each other participant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A server node for use in a communication network offering a push to talk service to subscribers, the node comprising:
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a receiver configured to receive a speech burst from a participant in a push to talk session; and a processor configured, following initiation of a push to talk session but prior to receipt by the network of a session acceptance from a receiving participant, to; detect an initial period of silence in the speech data burst; and remove the detected period of silence from the speech data prior to transmission to the or each other participant in the session. - View Dependent Claims (12, 13)
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14. A mobile terminal for use in a communication network offering a push to talk service to subscribers, the terminal comprising:
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a receiver configured to receive speech data from a terminal user; and a processor configured, following initiation of a push to talk session, but prior to receipt by the mobile terminal of a session acceptance from a receiving terminal, to; remove a period of silence from the speech data prior to transmission to the or each other terminal participating in the session. - View Dependent Claims (15, 16, 17, 18)
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Specification