Method of error recovery in transmitting and receiving voice service in packet based mobile communication systems
DCFirst Claim
Patent Images
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.
0 Assignments
Litigations
0 Petitions
Accused Products
Abstract
Provided is a method of transmitting and receiving data using a persistent allocation scheme in order to effectively support a voice service between a base station and a mobile terminal in a packet based mobile communication system. When an error occurs in transmitting control information that indicates whether to use a radio resource using the persistent allocation scheme, the base station may retransmit the control information and thereby maintain a communication quality.
13 Citations
30 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A communication apparatus for wireless communication, 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 receive 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 receive first data on a first Physical Downlink Shared Channel (PDSCH) in the first subframe based on the first information; cause the communication apparatus to receive second data on a second PDSCH in a second subframe based on the first information; cause the communication apparatus to receive a second message on a second PDCCH in a third subframe, the second message indicating a release of the semi-persistent scheduling; and cause the communication apparatus to transmit an acknowledgement (ACK) acknowledging receipt of the second message. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. A device for a mobile terminal, the device 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 mobile terminal to receive 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 mobile terminal to receive first data on a first Physical Downlink Shared Channel (PDSCH) in the first subframe based on the first information; cause the mobile terminal to receive second data on a second PDSCH in a second subframe based on the first information; cause the mobile terminal to receive a second message on a second PDCCH in a third subframe, the second message indicating a release of the semi-persistent scheduling; and cause the mobile terminal to transmit an acknowledgement (ACK) acknowledging receipt of the second message. - View Dependent Claims (14, 15, 16, 17, 18)
-
-
19. A communication method, comprising:
-
transmitting a first message to a mobile terminal 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; transmitting first data to the mobile terminal on a first Physical Downlink Shared Channel (PDSCH) in the first subframe based on the first information; transmitting second data to the mobile terminal on a second PDSCH in a second subframe based on the first information; transmitting a second message to the mobile terminal on a second PDCCH in a third subframe, the second message indicating a release of the semi-persistent scheduling; and retransmitting the second message to the mobile terminal if an acknowledgement (ACK) is not received from the mobile terminal, the ACK acknowledging receipt of the second message. - View Dependent Claims (20, 21, 22, 23, 24)
-
-
25. A communication method, comprising:
-
receiving, from a base station, 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; receiving, from the base station, first data on a first Physical Downlink Shared Channel (PDSCH) in the first subframe based on the first information; receiving, from the base station, second data on a second PDSCH in a second subframe based on the first information; receiving, from the base station, a second message on a second PDCCH in a third subframe, the second message indicating a release of the semi-persistent scheduling; and transmitting, from the base station, an acknowledgement (ACK) acknowledging receipt of the second message. - View Dependent Claims (26, 27, 28, 29, 30)
-
Specification