专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2009149665A1 SCANNING AND HANDOVER OPERATION IN MULTI-CARRIER WIRELESS COMMUNICATIONS SYSTEMS 审中-公开
标题翻译：多载波无线通信系统中的扫描和切换操作
公开(公告)号：WO2009149665A1
公开(公告)日：2009-12-17
申请号：PCT/CN2009/072235
申请日：2009-06-11
申请人： MEDIATEK INC. , CHOU, Chao-chin , FU, I-kang , CHEN, Yih-shen
发明人： CHOU, Chao-chin , FU, I-kang , CHEN, Yih-shen
IPC分类号： H04W36/00
CPC分类号： H04W36/12 , H04L5/0007 , H04L27/0006 , H04L27/2618 , H04L27/2655 , H04W36/0027 , H04W36/0072 , H04W36/0088 , H04W36/08 , H04W36/18 , H04W48/16
摘要： A comprehensive solution is provided for multi-carrier scanning and handover operations in OFDM wireless systems. A multi-carrier scanning is any scanning operation that involves multi-carrier radio frequency carriers. In one embodiment, a mobile station communicates with a servi ng base station over a primary carrier, and performs scanning over one or more determined carriers. A multi-carrier handover is any handover operation that i nvolves multiple radi o frequency carriers. In a first embodiment, a break-before-entry (B BE) handover procedure with fast synchronization is provided. In a sec ond embodiment, an entry-before-break (EBB) handover procedure through unav ailable intervals is provided. In a third embodiment, EBB handover procedures for both inter-FA and intra-FA using multiple carriers are provided. Finally, in a fourth embodi ment, intra-BS handover procedures are provided. The multi-carrier ha ndover procedures may be app lied to 2-to-2 or N-to-N carriers handover situation. The overall scanning time and handover interruption time may be reduced throug h the provided procedures.
摘要翻译：为OFDM无线系统中的多载波扫描和切换操作提供了全面的解决方案。多载波扫描是涉及多载波射频载波的任何扫描操作。在一个实施例中，移动站通过主载波与服务基站进行通信，并对一个或多个确定的载波执行扫描。多载波切换是涉及多个无线电频率载波的任何切换操作。在第一实施例中，提供了具有快速同步的中断前进（B-BE）切换过程。在第二实施例中，提供了通过不可获得的间隔的前进中断（EBB）切换过程。在第三实施例中，提供了使用多个载波的FA间和FA内的EBB切换程序。最后，在第四实施例中，提供了BS内的切换过程。多载波移动程序可能应用于2对2或N到N载波切换情况。通过提供的程序可以减少整个扫描时间和切换中断时间。

2. 发明申请

WO2009092325A1 METHODS FOR TRANSMITTING SYSTEM INFORMATION BIT STREAMS AND COMMUNICATION APPARATUSES UTILIZING THE SAME 审中-公开
标题翻译：用于发送系统信息位流的方法和使用该通信的通信设备
公开(公告)号：WO2009092325A1
公开(公告)日：2009-07-30
申请号：PCT/CN2009/070179
申请日：2009-01-16
申请人： MEDIATEK INC. , CHEN, Yih-shen , FU, I-kang
发明人： CHEN, Yih-shen , FU, I-kang
IPC分类号： H04W48/08
CPC分类号： H04W48/08 , H04W28/06 , H04W52/0229 , Y02D70/146
摘要： A method for transmitting system information bit streams of one or more base stations in a wireless communicat ion system is provided. The method includes: identifying network-entry- related bit streams and non-network-entry-related bit streams from the system information bit streams, where the network-entry-related bit streams carry essential system information for a terminal to access a network through at least one of the base stations; modulating the network- entry-related bit streams according to a first set of modulation and coding sch emes (MCSs) and modulating the non-network-entry-related bit streams according to a second set of MCSs; and transmitting the system information bit streams with different frequen cies, where the network- entry-related bit streams are periodically transmitted according to a first predeter mined period.
摘要翻译：提供一种用于在无线通信系统中发送一个或多个基站的系统信息比特流的方法。该方法包括：从系统信息比特流识别与网络入口相关的比特流和非网络入口相关比特流，其中网络入口相关比特流携带用于终端访问网络的基本系统信息至少一个基站; 根据第一组调制和编码模块（MCS）调制与网络入口相关的比特流，并根据第二组MCS对非网络入口相关比特流进行调制; 以及以不同的频率发送系统信息比特流，其中根据第一预测周期来周期性地发送网络入口相关比特流。

3. 发明申请

WO2010025681A1 POWER MANAGEMENT FOR MULTI-CARRIER TRANSMISSION 审中-公开
标题翻译：多载波传输的电源管理
公开(公告)号：WO2010025681A1
公开(公告)日：2010-03-11
申请号：PCT/CN2009/073746
申请日：2009-09-04
申请人： MEDIATEK INC. , CHEN, Yih-shen , HSU, Chung-hsien
发明人： CHEN, Yih-shen , HSU, Chung-hsien
IPC分类号： H04B7/12
CPC分类号： H04W52/06 , H04L5/001 , H04L5/0098 , H04W52/0225 , H04W52/0229 , H04W52/08 , H04W52/10 , H04W52/146 , H04W52/16 , H04W52/34 , Y02D70/1262 , Y02D70/1264 , Y02D70/146 , Y02D70/23 , Y02D70/24
摘要： A method of power management for a mobile station in a multi-carrier wireless network is provided. A primary connection between the mobile station and a serving ba se station is first established by performing initial ranging over a primary radio frequency (RF) carrier. A secondary connection between the mobile station and the base station is then established by performing periodic ranging over a secondary RF carrier. To achieve efficient power management, the mobile station performs Open Loop Power Control and obtains long-term link measurement (CSI) of the primary carrier. The mobile station then adjusts carrier-specific parameters based on the primary carrier CSI. for r RF carriers that convey on-going data traffic, Close Loop Power Control is updated per RF carri er. When the mobile station enters sleep mode operation, it receives traffic indication messages on the primary RF carrier and then dynamically wakes up one or more corresponding RF carriers for data reception.
摘要翻译：提供了一种用于多载波无线网络中的移动台的功率管理方法。首先通过在主射频（RF）载波上执行初始测距来建立移动站和服务站之间的主要连接。然后通过在次RF载波上执行周期性测距来建立移动台和基站之间的二次连接。为了实现有效的电力管理，移动台执行开环功率控制，并获得主载波的长期链路测量（CSI）。然后，移动台基于主载波CSI调整载波特定参数。对于传送正在进行的数据流量的r RF载波，每个RF载波更新闭环功率控制。当移动台进入睡眠模式操作时，它在主RF载波上接收业务指示消息，然后动态地唤醒一个或多个对应的RF载波用于数据接收。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式