Methods of transmitting data blocks in wireless communication system

• US 8,081,662 B2
• Filed: 04/30/2008
• Issued: 12/20/2011
• Est. Priority Date: 04/30/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chun, Sung Duck, Lee, Young Dae, Park, Sung Jun, Yi, Seung June
• Primary Examiner(s): Sinkantarakorn, Pao
• Assistant Examiner(s): Zaidi, Iqbal
• Application Number:
  US12/451,185
• Publication Number:
  US 20100128742A1
• Time in Patent Office: 1,329 Days
• Field of Search: 370/229, 370/332, 370/335, 370/339, 370/474, 370252-253, 370389-427, 370471-473, 370/477
• US Class Current: 370/474
• CPC Class Codes: H04L 12/1886 with traffic restrictions for efficiency improvement, e.g. involving subnets or subdomains
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04L 69/324 in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 80/02 Data link layer protocols

Abstract

Disclosed is a method for generating a data block to be transmitted from a specific layer in a transmitting side to a receiving side in a wireless communication system. The method includes receiving an upper layer datei block from an upper layer and generating a lower layer data block including at least part of the upper layer data block and state indication information indicating a state of the upper layer data block, the state indication information being selected variably according to a logical channel through which the upper layer data block is received. This method optimizes overhead of a header of each upper layer data block according to contents of the upper layer data block and event situations associated with the upper layer data block, thereby increasing system efficiency.

Claims

1. A method for generating a data block at a medium access control, MAC, layer of a transmitting side in a wireless communication system, the method comprising:

receiving an upper layer data block from an upper layer; and

generating the data block including a MAC header and a MAC payload, wherein the MAC payload comprises at least part of the upper layer data block and the MAC header comprises one or more sub-headers,

wherein each of the one or more sub-headers comprises;

a LCID (logical channel identifier) field being used to indicate an identifier of a logical channel through which the upper layer data block is received,

a 1-bit state indication information field being used to indicate a state of the upper layer data block, wherein the 1-bit value of the state indication information field is interpreted differently according to a value of the LCID field, and

a L (length) field being used to indicate a size of the at least part of the upper layer data block,

wherein the state indication information field in one of the one or more sub-headers indicates whether the upper layer data block includes a full header or a compressed header when the LCID field in the same sub-header indicates the upper layer data block is received through a logical channel related with an IP packet.

2. The method according to claim 1, wherein the state indication information field in one of the one or more sub-headers further indicates whether the upper layer data block has been generated in a talk spurt period or a silent period when the LCID field in the same sub-header indicates the upper layer data block is received through a logical channel related with a voice packet.

3. The method according to claim 1, wherein the state indication information field in one of the one or more sub-headers further indicates whether the upper layer data block is urgent information or non-urgent information when the LCID field in the same sub-header indicates the upper layer data block is received through a logical channel related with predetermined control information.

4. The method according to claim 1, wherein the state indication information field is included in a MAC sub-header corresponding to the upper layer data block.