Method of error recovery in transmitting and receiving voice service in packet based mobile communication systems

  • US 10,009,884 B2
  • Filed: 02/22/2016
  • Issued: 06/26/2018
  • Est. Priority Date: 06/20/2008
  • Status: Active Grant
First Claim
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1. A communication apparatus, comprising:

  • a processor; and

    a memory coupled to the processor,wherein the processor, when executing program instructions stored in the memory, is configured to;

    cause the communication apparatus to transmit a first message on a first Physical Downlink Control Channel (PDCCH) in a first subframe, wherein the first message indicates an activation of a semi-persistent scheduling and the first message comprises first information;

    cause the communication apparatus to transmit first data on a first Physical Downlink Shared Channel (PDSCH) in the first subframe based on the first information;

    cause the communication apparatus to transmit second data on a second PDSCH in a second subframe based on the first information; and

    cause the communication apparatus to transmit a second message on a second PDCCH in a third subframe, the second message indicating a release of the semi-persistent scheduling,wherein the processor is further configured to cause the communication apparatus to retransmit the second message if the processor fails to receive an acknowledgement (ACK) from a mobile terminal acknowledging receipt of the second message.

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