Resource allocation method for control message in wireless communication system
AssigneeElectronics and Telelcommunications Research Institute
InventorsNamsuk Lee, Yong Seouk Choi, Sook Jin Lee
Life of this patent
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Abstract
The present invention relates to a resource allocation method of a base station. The method includes generating a packet data unit that includes a first field and a downlink control message, wherein the first field indicates whether unsolicited resource is to be allocated for an uplink control message, transmitting the generated packet data unit to the terminal, allocating resources for the uplink control message, and transmitting the allocated resources to the terminal.
Claims8
A method for allocating resources for an uplink control message at base station, the method comprising:
- generating a packet data unit that includes a first field and a downlink control message, wherein the first field indicates whether unsolicited resource is to be allocated for an uplink control message;
- transmitting the generated packet data unit to a terminal;
- allocating resources for the uplink control message;
- and
- transmitting the allocated resources to the terminal,
- wherein the packet data unit further includes a second field and a third field, the second field indicates whether or not an acknowledgement (ACK) message for the downlink control message is required, and the third field indicates whether or not unsolicited resource is to be allocated for the ACK message,
- wherein the generating a packet data unit includes:
- determining whether or not an uplink control message for the downlink control message is required when the downlink control message is generated;
- and
- setting the first field to indicate that the unsolicited resource allocation is to be performed for the uplink control message when the uplink control message is required.
A method for transmitting an uplink control message at a terminal, the method comprising:
- receiving a packet data unit including a first field and a downlink control message, wherein the first field indicates whether or not a base station allocates unsolicited resource for the uplink control message;
- checking the first field when the uplink control message is generated;
- waiting unsolicited resource allocation to transmit the uplink control message for a first time when the first field indicates that the base station would allocate unsolicited resource for the uplink control message;
- and
- when the base station allocates resources for the uplink control message within the first time, transmitting the uplink control message using the allocated resources,
- wherein the packet data unit further includes a second field and a third field, the second field indicates whether or not an acknowledgement (ACK) message for the downlink control message is required, and the third field indicates whether or not unsolicited resource is to be allocated for the ACK message,
- wherein determining whether the ACK message for the downlink control message is required based on the second field;
- checking the third field when the ACK message is required;
- when the third field indicates that unsolicited resource is to be allocated for the ACK message, waiting unsolicited resource allocation for transmitting the ACK message for a second time;
- when resource for transmitting the ACK message is allocated from the base station within the second time, transmitting the ACK message using the allocated resource;
- and
- when resources for transmitting the ACK message are not allocated from the base station within the second time, transmitting a contention-based resource allocation request for the ACK message.
Dependencies are inferred from the claim text.