公开(公告)号：KR1020100065062A

公开(公告)日：2010-06-15

申请号：KR1020090079442

申请日：2009-08-26

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 김원익 ,  조호신 ,  진성근 ,  이현 ,  윤철식 ,  안지환

IPC: H04W48/16 ,  H04W36/04

CPC classification number: H04W36/0083 ,  H04W16/30 ,  H04W36/04 ,  H04W48/08 ,  H04W48/16 ,  H04W48/20 ,  H04W64/00 ,  H04W84/045

Abstract: PURPOSE: A management method of neighboring cell list based on a terminal location for efficient cell selection and hand off in macro-cell environments with femto-cell deployments is provided to realize effective hand off support, thereby contribute femto cell commercialization. CONSTITUTION: A base station(BS110) divides macro cell(110) according to the predetermined division standard. The base station periodically transmits the base station notice message to a terminal. The base station notice message comprises the information of the femtocells(FC21~FC26) introduced to the information of the around macro cells(120~170) of the macro cell and the divided areas. The terminal obtains information of femto cell corresponding to terminal location among information of the femto cell introduced in divided area by the base station notice message and information of the neighbor macro cell.

Abstract translation: 目的：提供基于用于在具有毫微微小区部署的宏小区环境中的有效小区选择和切换的终端位置的相邻小区列表的管理方法，以实现有效的切换支持，从而贡献毫微微小区商业化。 构成：基站（BS110）根据预定的划分标准划分宏小区（110）。 基站周期性地向终端发送基站通知消息。 基站通知消息包括引入到宏小区的周围宏小区（120〜170）的信息和分割区域的毫微微小区（FC21〜FC26）的信息。 终端通过基站通知消息和邻近宏小区的信息，获取在分割区域中引入的毫微微小区的信息中与终端位置对应的毫微微小区的信息。

公开(公告)号：KR1020090107189A

公开(公告)日：2009-10-13

申请号：KR1020080032569

申请日：2008-04-08

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 진성근 ,  윤철식 ,  장성철

IPC: H04L5/22 ,  H04L27/26

CPC classification number: H04L27/2602 ,  H04L5/0007

Abstract: PURPOSE: A frame structure for a wireless network system based on OFDM is provided to allocate a resource for transmitting a small amount of data periodically by considering a frame uplink transmission quantity and a frame downlink transmission quantity when the uplink transmission data quantity and the downlink transmission data quantity are asymmetrical. CONSTITUTION: An uplink transmission domain and a downlink transmission domain are adaptively divided by considering the load quantity. The uplink transmission domain or the downlink transmission domain is allocated with the preset number of frames as a cycle.

Abstract translation: 目的：提供一种基于OFDM的无线网络系统的帧结构，通过考虑上行链路传输数据量和下行链路传输的帧上行传输量和帧下行传输量，周期性地分配用于传输少量数据的资源 数据量不对称。 构成：通过考虑负载量自适应地划分上行传输域和下行传输域。 将上行链路传输域或下行链路传输域分配为预设帧数作为一个周期。

公开(公告)号：KR1020090031176A

公开(公告)日：2009-03-25

申请号：KR1020070128422

申请日：2007-12-11

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 이현 ,  임광재 ,  김성경 ,  장성철 ,  차재선 ,  박철 ,  진성근 ,  조석헌 ,  권정민 ,  윤철식

IPC: H04B7/26 ,  H04L1/18 ,  H04L27/26

CPC classification number: H04W74/0833 ,  H04L1/1812 ,  H04L5/0007 ,  H04L5/0055 ,  H04W74/0866

Abstract: A signal transmitting method and a signal receiving method are provided to increase a yield of a random access channel by restricting the access to the random access channel depending on the availability of the random access channel and reduce a data transmission delay by simplifying a bandwidth allocation process. A base station(10) broadcasts a field of a high speed RAC signal as 0 for an available random access channel. A mobile station(20) selects a random access preamble code corresponding to a requested length and MCS(Modulation Coding Scheme) level among random access preamble code set, and chooses one of the random access channels which has a field of a high speed RAC signal as 0. The mobile station transmits the selected preamble code and a random access message to the base station. If the base station is unable to receive the random access preamble code and the random access message, the base station broadcasts as a field of a high speed RAC signal as 0 without a random access response of a random access channel. When the mobile station receives the field of a high speed RAC signal as 0, performs a bandwidth request ranging procedure to transmit data or selects another random access channel to retransmit a random access data.

Abstract translation: 提供信号发送方法和信号接收方法，以通过根据随机接入信道的可用性限制对随机接入信道的接入，通过简化带宽分配处理来减少数据传输延迟来增加随机接入信道的收益 。 基站（10）向可用随机接入信道广播高速RAC信号的字段为0。 移动站（20）在随机接入前导码集合中选择对应于所请求长度的随机接入前导码和MCS（调制编码方案）级别，并选择具有高速RAC信号字段的随机接入信道之一 移动台向基站发送所选择的前导码和随机接入消息。 如果基站不能接收到随机接入前导码和随机接入消息，则基站作为0的高速RAC信号的字段广播，而不随机接入信道的随机接入响应。 当移动站接收到高速RAC信号的场为0时，执行带宽请求测距过程以发送数据或选择另一个随机接入信道来重传随机接入数据。