公开(公告)号：WO2009078569A2

公开(公告)日：2009-06-25

申请号：PCT/KR2008006048

申请日：2008-10-14

Applicant: KOREA ELECTRONICS TELECOMM ,  SAMSUNG ELECTRONICS CO LTD ,  PARK CHUL ,  LIM KWANG JAE ,  LEE HYUN ,  YOON CHUL SIK

Inventor： PARK CHUL ,  LIM KWANG JAE ,  LEE HYUN ,  YOON CHUL SIK

IPC: H04B7/12

CPC classification number: H04W36/06 ,  H04W36/22 ,  H04W72/0453

Abstract: The present invention relates to a method of changing a frequency assignment (FA) status in an improved broadband wireless access system where terminals and base stations can communicate with each other by using a plurality of FAs. In the present invention, the base station changes the status of one of secondary FA into the status of the pFA in order to adjust a load of the primary FA, and communicates with the terminal through the pFA of which status is changed. For this purpose, the base station transmits a MAP information element (IE), which requests the change of the status of the pFA, to the terminal. The MAP IE includes an action code that requests the change of the status of the pFA, and a bit map representing an FA of which status is to be changed. When a response, which represents the completion of the change of the status of the pFA of the base station, is received from the terminal, the base station changes the status of the pFA and communicates with the pFA of the terminal through a new pFA. The status of a previous pFA between the base station and the terminal is changed into the status of the sFA, and the status of one previous sFA between the base station and the terminal is changed into the status of the pFA, so that communication is performed through new FAs. According to the present invention, since the base station can change the status of a specific terminal and FAs in use according to need, it is possible to adjust loads between the FAs. Further, the base station can change the statuses of the FAs in use while continuously maintaining the access of a specific terminal.

Abstract translation: 本发明涉及一种在改进的宽带无线接入系统中改变频率分配（FA）状态的方法，其中终端和基站可以通过使用多个FA彼此进行通信。 在本发明中，基站将一次辅助FA的状态改变为pFA的状态，以调整主FA的负载，并通过其状态改变的pFA与终端通信。 为此，基站向终端发送请求更改pFA的状态的MAP信息元素（IE）。 MAP IE包括请求更改pFA的状态的动作代码，以及表示要改变状态的FA的位图。 当从终端接收表示完成基站的pFA的状态的响应的响应时，基站改变pFA的状态并通过新的pFA与终端的pFA通信。 基站和终端之间的前一个pFA的状态被改变为sFA的状态，并且基站和终端之间的一个先前的sFA的状态被改变为pFA的状态，从而进行通信 通过新的FAs。 根据本发明，由于基站可以根据需要改变使用中的特定终端和FA的状态，因此可以调整FA之间的负载。 此外，基站可以在持续保持特定终端的访问的同时，改变正在使用的FA的状态。

公开(公告)号：WO2010140867A3

公开(公告)日：2011-03-17

申请号：PCT/KR2010003612

申请日：2010-06-04

Applicant: KOREA ELECTRONICS TELECOMM ,  CHO JAI HYUNG ,  LEE SANG HO ,  KIM YEONG JIN ,  NA JEE HYEON ,  MOON JUNG MO ,  KIM DAE IK ,  KIM JAE HO ,  HYUN EUN HEE ,  ROH HYUN SUK ,  PARK CHUL ,  LIM SUN HWA ,  YUN MI YOUNG ,  CHO HO CHOONG ,  SUH DOUG YOUNG ,  KIM CHUL KEUN ,  PARK EUN JU

Inventor： CHO JAI HYUNG ,  LEE SANG HO ,  KIM YEONG JIN ,  NA JEE HYEON ,  MOON JUNG MO ,  KIM DAE IK ,  KIM JAE HO ,  HYUN EUN HEE ,  ROH HYUN SUK ,  PARK CHUL ,  LIM SUN HWA ,  YUN MI YOUNG ,  CHO HO CHOONG ,  SUH DOUG YOUNG ,  KIM CHUL KEUN ,  PARK EUN JU

IPC: H04N5/50 ,  H04N7/173 ,  H04N7/24

CPC classification number: H04N7/17318 ,  H04N21/4384

Abstract: Disclosed are a method and device for reducing channel-changing delay, in which base-layer data in time-sliced format is transmitted with each burst, and the base-layer data of the channel being switched to is output during channel changing.

Abstract translation: 公开了一种用于减少频道变化延迟的方法和装置，其中以每个脉冲串发送时分片格式的基本层数据，并且在频道改变期间输出被切换的频道的基本层数据。

公开(公告)号：KR20120072256A

公开(公告)日：2012-07-03

申请号：KR20100134094

申请日：2010-12-23

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： YOON MI YOUNG ,  MOON JUNG MO ,  LEE SANG HO ,  HYUN EUN HEE ,  CHO JAI HYUNG ,  LA JEE HYEON ,  PARK CHUL ,  LIM SUN HWA ,  ROH HYUN SUK ,  KIM DAE IK ,  KIM JAE HO ,  KIM YEONG JIN ,  KIM DAE SIK

IPC: H04N5/44

CPC classification number: H04W4/06 ,  H04W28/06 ,  H04W72/00 ,  H04N5/4401 ,  H04N5/44 ,  H04N5/445 ,  H04N21/6408

Abstract: PURPOSE: An MBMS(Multimedia Broadcast Multicast Service) broadcasting service receiving system and a method thereof are provided to receive an MBMS by a unicast bearer using synchronization information which is the same as a multicast bearer according to wireless quality or performance of a terminal. CONSTITUTION: When a selected broadcast service is not transmitted to a first bearer, a transmission channel setting unit(130) sets a second bearer by a transmission channel. When the selected broadcast service is transmitted to both the first bearer and the second bearer, the transmission channel setting unit sets the first bearer about a portion of the selected broadcast service as a transmission channel. The transmission channel setting unit sets the second bearer about the other portions of the selected broadcast service as a transmission channel. A broadcast service receiving unit(140) receives an MBMS broadcast service which is selected according to the setup transmission channel.

Abstract translation: 目的：提供MBMS（Multimedia Broadcast Multicast Service，多媒体广播多播业务）广播业务接收系统及其方法，根据无线质量或终端性能，使用与多播承载相同的同步信息，通过单播承载接收MBMS。 构成：当所选择的广播业务不发送到第一承载时，传输信道设置单元（130）通过传输信道设置第二承载。 当所选择的广播服务被发送到第一承载和第二承载时，传输信道设置单元将关于所选广播服务的一部分的第一承载设置为传输信道。 传输信道设置单元将关于所选广播服务的其他部分的第二承载设置为传输信道。 广播服务接收单元（140）接收根据建立传输信道选择的MBMS广播服务。