Method for allocating wireless resource in wireless communication system

• US 7,197,313 B1
• Filed: 01/03/2000
• Issued: 03/27/2007
• Est. Priority Date: 12/31/1998
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Sohn, Byoung-chul
• Primary Examiner(s): Mehrpour; Melody
• Assistant Examiner(s): Mehrpour; Naghmeh
• Application Number:
  US09/476,372
• Time in Patent Office: 2,640 Days
• Field of Search: 455/450, 455/435.1, 455/436, 455/434, 455/525, 455/509, 455/516, 455/517, 455/447, 455/452, 455/453, 455/455, 455/432, 455/515, 370/338, 370/401, 370/394, 370/329, 370/330, 370/331, 370/332, 370/333, 370/461, 370/348, 370/437, 370/345, 370/347, 714/43, 714/4
• US Class Current: 455/450
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 12/462 LAN interconnection over a bridge based backbone
• CPC Class Codes: H04W 72/04 Wireless resource allocation

Abstract

A wireless resource allocation method considering retransmission in a wireless communication system is provided. In the wireless communication system including a plurality of wireless terminals and a single access point (AP) having a bridge function, the AP allocates a wireless resource to each wireless terminal and receives data from the wireless terminal. The AP performs a check to determine whether there is an error in the data which was received from a wireless terminal. When detecting an error from the data, the AP sends an error occurrence message and allocates a wireless resource for retransmission of the data to the wireless terminal simultaneously within one frame.

Claims

1. A wireless resource allocation method in a wireless communication system including a plurality of wireless terminals and a single access point having a bridge function, the method comprising the steps of:

(a) allocating a wireless resource to a corresponding wireless terminal and receiving data from said wireless terminal in said access point;

(b) performing a check to determine whether there is an error in said data which was received from said wireless terminal in said access point in the step (a); and

(c) sending an error occurrence message and allocating a wireless resource for retransmission of data to said wireless terminal simultaneously when said access point detects a data error in the step (b), wherein said wireless resource is one of a bandwidth and a time slot;

wherein, in the step (c), said error occurrence message is sent to the corresponding wireless terminal while said wireless resource for retransmission is allocated to the corresponding wireless terminal during a down-link period within one frame comprising the down-link period and an up-link period; and

wherein said wireless terminal does not send a wireless resource request message for retransmission of said data.

2. The wireless resource allocation method of claim 1, wherein said down-link period comprises a preamble for synchronization, a broadcast period, and a download reservation period.

3. The wireless resource allocation method of claim 1, wherein said up-link period comprises a contention period, and an upload reservation period.

4. The wireless resource allocation method of claim 3, wherein during said down-link period, said access point transmits a broadcast message and various control information.

5. The wireless resource allocation method of claim 4, wherein said various control information includes a length of said download reservation period, a location and a length of a message which said wireless terminal receives during said download reservation period, a length of said contention period, a length of said upload reservation period, a location and a length allocated to a message which will be transmitted by said wireless terminal during said upload reservation period, or acknowledge information or not acknowledge information which said wireless terminal transmitted to said access point during said upload reservation period of a previous frame.

6. A wireless communication method comprising:

(a) allocating a wireless resource to a corresponding wireless terminal and receiving data from the corresponding wireless terminal, wherein said wireless resource is one of a bandwidth and a time slot;

(b) performing a check to determine where there is an error in data which was received from the corresponding wireless terminal;

(c) informing the corresponding wireless terminal of error occurrence and allocating the wireless resource for transmission of the data to the corresponding wireless terminal simultaneously when the error occurs in the received data;

wherein said corresponding wireless terminal does not send a wireless resource request message for retransmission of said data, and

wherein, in the step (c), said error occurrence message is sent to the corresponding wireless terminal while said wireless resource for retransmission is allocated to the corresponding wireless terminal during a down-link period within one frame comprising the down-link period and an up-link period.