公开(公告)号：US20130188653A1

公开(公告)日：2013-07-25

申请号：US13675470

申请日：2012-11-13

申请人： Young Soo KIM ,  Chang Soon PARK ,  Young Jun HONG ,  Yongok KIM ,  Minchae JUNG ,  Sooyong CHOI ,  Kyuho HWANG

发明人： Young Soo KIM ,  Chang Soon PARK ,  Young Jun HONG ,  Yongok KIM ,  Minchae JUNG ,  Sooyong CHOI ,  Kyuho HWANG

IPC分类号： H04L12/56

CPC分类号： H04L47/826 ,  H04J3/0658 ,  H04L12/4035 ,  H04L12/413

摘要： A method and a target node for preventing collisions between networks communicating based on a carrier sense multiple access/collision avoidance (CSMA/CA) scheme, are provided. The method includes synchronizing an object network with a neighboring network. The method further includes allocating, to the object network, a slot index based on a number of the networks, and a contention window (CW) size. The method further includes setting, for the object network, a back-off counter value based on the CW size. The method further includes reducing the back-off counter value based on a channel state of the object network, and the slot index. The method further includes transmitting data related to the neighboring network based on the back-off counter value.

摘要翻译： 提供了一种用于防止基于载波侦听多路访问/冲突避免（CSMA / CA）方案进行通信的网络之间的冲突的方法和目标节点。 该方法包括使对象网络与相邻网络同步。 该方法还包括向对象网络分配基于网络数量的时隙索引和竞争窗口（CW）大小。 该方法还包括针对对象网络设置基于CW大小的退避计数器值。 该方法还包括基于对象网络的信道状态和时隙索引来减小退避计数器值。 该方法还包括基于退避计数器值发送与相邻网络有关的数据。

公开(公告)号：US20130173999A1

公开(公告)日：2013-07-04

申请号：US13359653

申请日：2012-01-27

申请人： Chang Soon PARK ,  Young Soo KIM ,  Chi Sung BAE ,  Hyo Sun HWANG ,  Yongok KIM ,  Minchae JUNG ,  Sooyong CHOI ,  Kyuho HWANG

发明人： Chang Soon PARK ,  Young Soo KIM ,  Chi Sung BAE ,  Hyo Sun HWANG ,  Yongok KIM ,  Minchae JUNG ,  Sooyong CHOI ,  Kyuho HWANG

IPC分类号： H03M13/09 ,  G06F11/10

CPC分类号： H04L27/3488

摘要： An apparatus and method for hierarchical modulation and demodulation in a wireless communication network are provided. A hierarchical modulation apparatus may map information bits to a plurality of levels based on a predetermined level map, may generate an error verification code for each of the levels based on the information bits mapped to the levels, may generate coded information bits for each of the levels, and may map bits in a predetermined position among the coded information bits, to Pulse-Position Modulation (PPM) symbols in a sequence of the levels.

摘要翻译： 提供了一种用于无线通信网络中的分级调制和解调的装置和方法。 分层调制装置可以基于预定电平映射将信息比特映射到多个级别，可以基于映射到电平的信息比特生成针对每个级别的错误验证码，可以为 电平，并且可以将编码信息位中的预定位置中的位映射到电平序列中的脉冲位置调制（PPM）符号。