Method for performing bandwidth request process in wireless communication system

• US 8,553,634 B2
• Filed: 08/26/2009
• Issued: 10/08/2013
• Est. Priority Date: 11/07/2008
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chun, Jin Young, Ryu, Ki Seon, Park, Sung Ho, Cho, Hee Jeong, Ihm, Bin Chul
• Primary Examiner(s): Phillips, Hassan
• Assistant Examiner(s): FOUD, HICHAM B
• Application Number:
  US13/128,159
• Publication Number:
  US 20110205997A1
• Time in Patent Office: 1,504 Days
• Field of Search: None
• US Class Current: 370/329
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

A bandwidth request procedure is performed in a wireless communication system by transmitting a bandwidth request indicator and a bandwidth request message through a bandwidth request channel; receiving an uplink grant message indicating uplink radio resource in response to the bandwidth request indicator and the bandwidth request message; and transmitting uplink data after receiving the uplink grant message, wherein the uplink grant message includes information regarding the type of the uplink grant message.

Claims

1. A method of performing a bandwidth request (BR) to a base station (BS) in a wireless communication system, the method performed comprising:

determining, by a terminal, whether to perform a first type BR procedure or a second type BR procedure based on a type of a service provided by the BS, wherein the first type BR procedure is associated with a non-real time service and the second type BR procedure is associated with a real time service;

selecting, by the terminal, a first BR sequence among a first subset of available orthogonal sequences if the first type BR procedure is determined to be performed;

selecting, by the terminal, a second BR sequence among a second subset of the available orthogonal sequences if the second type BR procedure is determined to be performed;

transmitting, from the terminal to the BS, the first BR sequence if the first type BR procedure is determined to be performed; and

transmitting, from the terminal to the BS, the second BR sequence and a first BR message comprising data associated with the BR if the second type BR procedure is determined to be performed,

wherein the first BR message further comprises a first cyclic redundancy check (CRC) for error detection.

2. The method of claim 1, wherein when the first type BR procedure is determined to be performed the method for performing the BR further comprises:

receiving, in response to the first BR sequence, a first grant for uplink transmission, wherein the first grant comprises a second CRC masked with an identifier of the terminal;

transmitting, in response to the first grant, a second BR message comprising data associated with the BR; and

receiving, in response to the second BR message a second grant for user data transmission, wherein the second grant comprises a third CRC masked with the identifier of the terminal.

3. The method of claim 1, wherein the bandwidth request is a contention-based bandwidth request.

4. The method of claim 1, wherein when the second type BR procedure is determined to be performed the method for performing the BR further comprises:

receiving, in response to the second BR sequence, a third grant for user data transmission.