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    • 1. 发明公开
    • 무선통신 시스템에서 랜덤 액세스 과정 수행 방법
    • 在无线通信系统中执行随机访问过程的方法
    • KR1020140071994A
    • 2014-06-12
    • KR1020140057756
    • 2014-05-14
    • 엘지전자 주식회사
    • 안승진김우성이대원김무룡
    • H04B7/26
    • H04B7/2603
    • A method of performing random access procedure in a wireless communications system comprises the steps of transmitting a random access preamble which is arbitrarily selected from a set of random access; receiving a random access response as a response to the random access preamble; transmitting a connection request message by using radio resource allocation information which is included in the random access response; transmitting a channel quality indicator (CQI) which is channel state information of a downlink channel; and receiving a contention resolution message transmitted by considering the CQI. The present invention can increase the reliability of receiving messages in the random access procedure and reduce the failure rate of the random access procedure.
    • 一种在无线通信系统中执行随机接入过程的方法包括以下步骤:发送从一组随机接入中任意选择的随机接入前同步码; 接收随机接入响应作为对随机接入前同步码的响应; 通过使用随机接入响应中包括的无线资源分配信息来发送连接请求消息; 发送作为下行信道的信道状态信息的信道质量指示符(CQI) 以及接收通过考虑CQI发送的争用解决消息。 本发明可以增加在随机接入过程中接收消息的可靠性并降低随机接入过程的故障率。
    • 5. 发明公开
    • 이동 단말기 및 그의 통신 방법
    • 移动终端及其通信方法
    • KR1020130087795A
    • 2013-08-07
    • KR1020120008961
    • 2012-01-30
    • 엘지전자 주식회사
    • 김무룡이수경이승섭서경남
    • H04W88/06H04W24/02H04W48/18
    • H04W88/06H04W24/02H04W48/18
    • PURPOSE: A mobile terminal and a communication method thereof are provided to minimize data transmission amount to a base station of a cellular network and to effectively use a wireless local area network (LAN) base station of which cost is cheap and transmission speed is fast. CONSTITUTION: A second communication module (162) performs communications using a second communication method of which usage cost is lower than a first communication method. A demand bandwidth prediction amount calculation unit (141) calculates a demand bandwidth prediction amount based on a data usage pattern of a mobile terminal. A usage data prediction amount calculation unit (142) calculates usage data prediction amount of the first communication method based on the mobile speed information and mobile pattern information of the mobile terminal. A communication method determining unit (150) selects either the first communication method or the second communication method by comparing the demand bandwidth prediction amount with the usage data prediction amount. [Reference numerals] (110) Measuring unit; (120) Storage unit; (131) First probability calculation unit; (132) Second probability calculation unit; (133) Third probability calculating unit; (141) Demand bandwidth prediction amount calculation unit; (142) Usage data prediction amount calculation unit; (150) Communication method determining unit; (161) First communication module; (162) Second communication module; (170) Control unit
    • 目的:提供移动终端及其通信方法以最小化对蜂窝网络的基站的数据传输量,并且有效地使用成本低廉且传输速度快的无线局域网(LAN)基站。 构成:第二通信模块(162)使用其使用成本低于第一通信方法的第二通信方法来执行通信。 请求带宽预测量计算单元(141)基于移动终端的数据使用模式来计算请求带宽预测量。 使用数据预测量计算单元(142)基于移动终端的移动速度信息和移动模式信息来计算第一通信方法的使用数据预测量。 通信方法确定单元(150)通过将需求带宽预测量与使用数据预测量进行比较来选择第一通信方法或第二通信方法。 (附图标记)(110)测量单元; (120)存储单元; (131)第一概率计算单元; (132)第二概率计算单元; (133)第三概率计算单元; (141)需求带宽预测量计算单元; (142)使用数据预测量计算单元; (150)通信方法确定单元; (161)第一通信模块; (162)第二通信模块; (170)控制单元