Error control method, medium access control (MAC) frame designing method, and terminal registration method in wireless communication system, and recording medium

• US 7,974,252 B2
• Filed: 08/04/2008
• Issued: 07/05/2011
• Est. Priority Date: 12/16/2002
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Lim, Hyoung-Soo, Choi, Woo-Yong, Kim, Yong-Sun, Ahn, Jae-Young
• Primary Examiner(s): Phillips, Hassan
• Assistant Examiner(s): Choi, Eunsook
• Application Number:
  US12/221,529
• Publication Number:
  US 20080316967A1
• Time in Patent Office: 1,065 Days
• Field of Search: None
• US Class Current: 370/341
• CPC Class Codes: H04L 1/0001 Systems modifying transmission characteristics according to link quality, e.g. power backoff adaptive data allocation for multicarrier modulation H04L5/0044; controlling transmission power for radio systems H04W52/04
• CPC Class Codes: H04L 1/0083 Formatting with frames or packets; Protocol or part of protocol for error control
• CPC Class Codes: H04L 1/1621 Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
• CPC Class Codes: H04L 1/1664 the supervisory signal being transmitted together with payload signals; piggybacking
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/023 Multiplexing of multicarrier modulation signals multicarrier modulation H04L27/2601
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 76/30 Connection release
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support

Abstract

The MAC frame in a wireless communication system includes a terminal ID allocated to each of multiple terminals. At least one connection ID is allocated to each terminal having the terminal ID, and sub-carrier allocation information is allocated to each connection having the connection ID. The sub-carrier allocation information includes a sub-carrier allocation status for each sub-carrier, and the number of allocated information bits for each sub-carrier. The sub-carrier allocation status and the number of allocated information bits for each sub-carrier can be allocated, by sub-carriers, to the sub-carrier allocation information using a same number of bits; or the information on the sub-carrier allocation status is first allocated to the sub-carrier allocation information and the number of allocated information bits for each sub-carrier is allocated.

Claims

1. A method of registering a terminal in an access point of a wireless communication system, the method comprising:

receiving a first ranging request message from the terminal using an access interval of an uplink sub-frame of a frame of a plurality of frames, wherein the access interval is used to receive the first ranging request message from the terminal on a contention basis;

sending a first ranging response message allocating a ranging slot to the terminal using a map message of a downlink sub-frame of a frame of the plurality of frames;

receiving a second ranging request message from the terminal using the allocated ranging slot;

sending a second ranging response message to the terminal in response to receiving the second ranging request message;

after sending the second ranging response message, receiving a registration request message from the terminal using a second management connection interval of a frame of the plurality of frames; and

sending information on whether to permit the registering to the terminal using a first management connection interval of a frame of the plurality of frames,

wherein each frame of the plurality of frames comprises a downlink sub-frame and an uplink sub-frame, wherein the downlink sub-frame includes a broadcast interval and a first management connection interval, and the uplink sub-frame includes an access interval and a second management connection interval, the broadcast interval being used for transmitting a map message.

2. The method of claim 1, wherein the access interval is an interval in which data from two or more terminals are allowed to collide.

3. The method of claim 1, further comprising transferring the map message to the terminal using the broadcast interval before receiving the first ranging request message.

4. The method of claim 1, wherein the

sending the second ranging response message comprises sending the second ranging response message to the terminal using the first management connection interval.

5. The method of claim 1, wherein the registration request message comprises information on at least one of authentication, transmission rate and capability.

6. The method of claim 1, further comprising:

receiving a ranging slot request message from the terminal using the second management connection interval;

reallocating the ranging slot to the terminal and transferring the map message including information on the reallocated ranging slot;

receiving a second ranging request message from the terminal using the reallocated ranging slot; and

sending a ranging response message to the terminal using the first management connection interval.

7. A non-transitory computer program product comprising a computer readable computer program code for executing a method of registering a terminal in an access point of a wireless communication system, the method comprising:

receiving a first ranging request message from the terminal using an access interval of an uplink sub-frame of a frame of a plurality of frames, wherein the access interval is used to receive the first ranging request message from the terminal on a contention basis;

sending a first ranging response message allocating a ranging slot to the terminal using a map message of a downlink sub-frame of a frame of the plurality of frames;

receiving a second ranging request message from the terminal using the allocated ranging slot;

sending a second ranging response message to the terminal;

after sending the second ranging response message, receiving a registration request message from the terminal using a second management connection interval of a frame of the plurality of frames; and

sending information on whether to permit the registering to the terminal using a first management connection interval of a frame of the plurality of frames,

wherein each frame of the plurality of frames comprises a downlink sub-frame and an uplink sub-frame, wherein the downlink sub-frame includes a broadcast interval and a first management connection interval, and the uplink sub-frame includes an access interval and a second management connection interval, the broadcast interval being used for transmitting a map message.

8. The computer program product of claim 7, wherein the access interval is an interval in which data from two or more terminals are allowed to collide.

9. The computer program product of claim 7, wherein the method further comprises transferring the map message to the terminal using the broadcast interval before receiving the first ranging request message.