公开(公告)号：KR1020080083460A

公开(公告)日：2008-09-18

申请号：KR1020070024057

申请日：2007-03-12

Applicant: 삼성전자주식회사 ,  재단법인서울대학교산학협력재단

Inventor： 전영현 ,  김대관 ,  박세웅 ,  이능형 ,  권종형

IPC: H04B7/26 ,  H04B7/24 ,  H04B7/02 ,  H04J11/00

CPC classification number: H04W72/082 ,  H04W16/24 ,  H04W72/042 ,  H04W72/085 ,  H04W88/08

Abstract: A method for dynamically allocating channels in a multi-cell downlink system is provided to increase performance about throughput per unit area as compared to other channel allocation techniques by allocating a channel in consideration of a mobile terminal's interference range dependent on the distance between a base station and the mobile terminal. A base station, if a channel allocation request is detected, checks whether unassigned channels exist(600,602). If unassigned channels exist, the base station selects one of the unassigned channels(604). On the assumption that the selected channel is allocated, the base station judges whether the selected channel has influence on mobile terminals which belong to neighbor base stations(606). In case it is judged that any of the mobile terminals which belong to neighbor base stations is not influenced by the selected channel, the base station allocates the selected channel(610). Then the base station transmits downlink channel allocation information to the neighbor base stations, including allocated channel information(612).

Abstract translation: 提供了一种用于在多小区下行链路系统中动态分配信道的方法，以便通过考虑到移动终端的干扰范围（其取决于基站之间的距离）分配信道来增加与其它信道分配技术相比的每单位面积吞吐量的性能 和移动终端。 如果检测到信道分配请求，则基站检查是否存在未分配的信道（600,602）。 如果存在未分配的信道，则基站选择未分配的信道之一（604）。 在所选择的信道被分配的假设下，基站判断所选择的信道是否对属于邻近基站的移动终端产生影响（606）。 在判断属于相邻基站的任何一个移动终端不受所选择的信道影响的情况下，基站分配所选择的信道（610）。 然后，基站向相邻基站发送下行链路信道分配信息，包括分配的信道信息（612）。

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。

公开(公告)号：KR1020080071731A

公开(公告)日：2008-08-05

申请号：KR1020070009986

申请日：2007-01-31

Applicant: 삼성전자주식회사 ,  한국과학기술원

Inventor： 김대관 ,  권종형 ,  조동호 ,  홍철기 ,  김휴대 ,  김주엽 ,  이헌주 ,  최식 ,  이호원 ,  이웅섭 ,  윤세영

IPC: H04B7/26 ,  H04L12/70

CPC classification number: H04W72/04 ,  H04L47/25 ,  H04L47/35 ,  H04L47/70

Abstract: A method for scheduling resources in a wireless communication system is provided to allocate the resources to an MS in consideration of a data rate and a packet generation cycle which can be varied according to time, thereby minimizing a waste of the resources. A method for allocating resources to an MS(Mobile Station) in a wireless communication system comprises the following steps of: enabling the MS to determine whether the generation cycle of a packet to be transmitted is changed(802); notifying a BS(Base Station) of an increase of the packet generation cycle before transmitting an initial packet corresponding to the increased packet generation cycle(804); and receiving the resources in correspondence to the packet generation cycle increased from the BS(806).

Abstract translation: 提供了一种用于在无线通信系统中调度资源的方法，以考虑可根据时间变化的数据速率和分组生成周期将资源分配给MS，从而最小化资源的浪费。 一种用于在无线通信系统中向MS（移动台）分配资源的方法包括以下步骤：使得MS能够确定要发送的分组的生成周期是否改变（802）; 在发送对应于增加的分组生成周期的初始分组之前，通知BS（基站）增加分组生成周期（804）; 以及从BS（806）增加的与分组生成周期对应的资源。

公开(公告)号：KR1020080019172A

公开(公告)日：2008-03-03

申请号：KR1020070084305

申请日：2007-08-22

Applicant: 삼성전자주식회사

Inventor： 권종형 ,  김대관

IPC: H04B7/26 ,  H04W16/00 ,  H04B7/155 ,  H04L27/26

CPC classification number: H04W72/085 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0094 ,  H04L25/0228 ,  H04L27/2613 ,  H04L2001/0097 ,  H04L27/2626

Abstract: An apparatus and a method for allocating resources to a terminal connected with a RS in a broadband wireless communication system are provided to estimate a channel between the terminal connected with the RS, in which a control signal is not repeated, and the RS, thereby selectively allocating resources according to a frequency, determining modulation and encoding schemes, and improving a data transmission rate. A BS(Base Station) apparatus in the wireless communication system of a relay method comprises a transmitter(201) and a scheduler(207). The transmitter transmits a pilot signal transmission request message to a terminal. The scheduler selectively allocates resources to the terminal according to a frequency by using channel information when the channel information estimated from a RS(Relay Station) by using the pilot signal is received.

Abstract translation: 提供了一种在宽带无线通信系统中向与RS连接的终端分配资源的装置和方法，用于估计与不与重复控制信号的RS连接的终端与RS之间的信道，从而选择性地 根据频率分配资源，确定调制和编码方案，提高数据传输速率。 中继方法的无线通信系统中的BS（基站）装置包括发射机（201）和调度器（207）。 发射机向终端发送导频信号发送请求消息。 当从RS（中继站）通过使用导频信号估计的信道信息被接收时，调度器通过使用信道信息，根据频率来选择性地向终端分配资源。

公开(公告)号：KR100756985B1

公开(公告)日：2007-09-07

申请号：KR1020060082778

申请日：2006-08-30

Applicant: 삼성전자주식회사 ,  연세대학교 산학협력단

Inventor： 박원형 ,  김대관 ,  조면균 ,  김영주 ,  노상민 ,  홍대식

IPC: H04B7/14

CPC classification number: H04W72/085 ,  H04B7/2606 ,  H04W16/26 ,  H04W40/16 ,  H04W40/22 ,  H04W84/047

Abstract: A device for selecting a relay station in a broadband wireless communication system and a method thereof are provided to configure channel information fed back from a receiving port, by using indexes only of a relay station, thereby decreasing an overhead by reducing the quantity of feedback information. A channel estimator(211) estimates channel information with relay stations. An index arranger(213) arranges indexes of the relay stations according to the estimated channel information. A transmitter transmits information on the predetermined number of indexes to a transmission port among the arranged indexes. The channel information refers to a signal to noise ratio. The index arranger(213) arranges the indexes in descending order according to the signal to noise ratio.

Abstract translation: 提供一种用于选择宽带无线通信系统中的中继站的装置及其方法，用于通过仅使用中继站的索引来配置从接收端口反馈的信道信息，从而通过减少反馈信息的数量来减少开销 。 信道估计器（211）估计与中继站的信道信息。 索引编排器（213）根据估计的信道信息排列中继站的索引。 发送机将预定数量的索引的信息发送到所配置的索引中的发送端口。 信道信息是指信噪比。 索引编排器（213）根据信噪比按照降序排列索引。