公开(公告)号：KR1020080080726A

公开(公告)日：2008-09-05

申请号：KR1020070020777

申请日：2007-03-02

Applicant: 삼성전자주식회사 ,  재단법인서울대학교산학협력재단

Inventor： 김대관 ,  권종형 ,  박세웅 ,  윤정균 ,  안재현

IPC: H04L12/28 ,  H04L12/413 ,  H04L29/06 ,  H04L1/00

CPC classification number: H04L12/66 ,  H04L43/0888

Abstract: A transmission device and a method using a multi-stage contention are provided to improve a production yield and equality with respect to the use of channels of each user. A contention window initializing and backoff counter setting unit(100) initializes a contention window value of each stage, and sets a random backoff counter value of each stage. A backoff counter subtracting unit(102) reduces a backoff counter value of a corresponding stage by slot time. A comparing unit(104) checks whether or not the reduced backoff counter value is 0, and whether or not the corresponding stage is a final contention stage, and outputs a backoff counter value 0 of the final contention stage to a data transmission unit(108). When the backoff counter value 0 of the final contention stage is received, the data transmission unit transmits data to a reception side.

Abstract translation: 提供了一种使用多级争用的传输设备和方法，以提高生产率和相对于每个用户的信道的使用的等同性。 竞争窗口初始化和退避计数器设置单元（100）初始化每个阶段的竞争窗口值，并设置每个阶段的随机退避计数器值。 退避计数器减法单元（102）根据时隙时间减少相应级的退避计数器值。 比较单元（104）检查减少的退避计数器值是否为0，以及对应的级别是否是最终的争用级，并将最后的争用级的退避计数器值0输出到数据传输单元（108 ）。 当接收到最终竞争级的退避计数器值0时，数据发送单元向接收侧发送数据。