Method and apparatus for allocating resources in wireless communication system

摘要

The present invention relates to a method and apparatus for transmitting a bandwidth request (BR) header in a wireless communication system. User equipment transmits a standalone BR header to a base station through a first uplink (UL) resource allocated by a BR-acknowledgement (ACK) A-MAP information element (IE), receives from the base station a hybrid automatic repeat request (HARQ)-non-acknowledgement (NACK) which indicates the base station has not successfully received the standalone BR header, receives a CDMA allocation A-MAP IE from the base station, and retransmits the standalone BR header through a second UL resource allocated by the CDMA allocation A-MAP IE.

主权项

1. A method for transmitting, by a user equipment (UE), a bandwidth request (BR) header in a wireless communication system, the method comprising:
transmitting a BR preamble sequence to the base station on a nth frame; receiving a BR-acknowledgement (ACK) A-MAP information element (IE) corresponding to the BR preamble sequence on a n+BR_ACK_Offset frame; transmitting a standalone BR header to a base station through a first uplink (UL) resource allocated through a BR-ACK A-MAP IE; receiving from the base station a hybrid automatic repeat request (HARQ)-non-acknowledgement (NACK) that indicates that the standalone BR header is not successfully received by the base station; receiving a code division multiple access (CDMA) allocation A-MAP IE from the base station; and retransmitting the standalone BR header to the base station through a second UL resource allocated through the CDMA allocation A-MAP IE, wherein the BR_ACK_Offset is a time offset to respond to the BR preamble sequence, wherein the BR-ACK A-MAP IE includes a BR-ACK bitmap field and resource allocation fields, wherein the BR-ACK bitmap field includes a bitmap indicating at least one decoded BR preamble sequence among a plurality of BR preamble sequences corresponding to a plurality of BR chances received on the nth frame, wherein the resource allocation fields include information for an allocated resource for each at least one uplink resource allocated BR preamble sequence among the at least one decoded BR preamble sequence, wherein the first uplink resource is determined based on the BR-ACK bitmap field and the resource allocation fields.