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

WO2009088251A2 METHOD FOR MULTIPLE TDD SYSTEMS COEXISTENCE 审中-公开
标题翻译：用于多TDD系统共存的方法
公开(公告)号：WO2009088251A2
公开(公告)日：2009-07-16
申请号：PCT/KR2009000125
申请日：2009-01-09
申请人： SAMSUNG ELECTRONICS CO LTD , ZHONG CHUAN , HE HONG , ZHENG XUFENG , LIANG ZONGCHUANG , CHOI HO-KYU , CHO JAE-WEON , SON JUNG-JE
发明人： ZHONG CHUAN , HE HONG , ZHENG XUFENG , LIANG ZONGCHUANG , CHOI HO-KYU , CHO JAE-WEON , SON JUNG-JE
IPC分类号： H04L7/02
CPC分类号： H04B7/2684 , H04B7/2656 , H04W56/00
摘要： The method for multiple TDD systems coexistence comprising steps of: a newly deployed system calculating a relative time offset ?t for a corresponding frame; the newly deployed system transmitting uplink and downlink signals based on a time reference information obtained by a summation of the relative time offset ?t and a time reference of an existing system. With the method proposed in present invention, uplink and downlink interference from adjacent frequency bands and from adjacent carriers in the same frequency band can be greatly reduced and a transmission time utility can be guaranteed for a newly deployed system.
摘要翻译：该多TDD系统共存方法包括以下步骤：新部署的系统计算相应帧的相对时间偏差Δt; 新部署的系统基于通过相对时间偏差Δt与现有系统的时间基准之和所获得的时间基准信息来发送上行链路和下行链路信号。采用本发明提出的方法，可以大大降低相邻频段和同一频段相邻载波的上下行干扰，为新部署的系统保证传输时间效用。

2. 发明申请

WO2009084876A3 METHOD AND DEVICE FOR PRE-CODING IN MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM 审中-公开
标题翻译：用于在多输入多输出系统中预编码的方法和装置
公开(公告)号：WO2009084876A3
公开(公告)日：2009-08-20
申请号：PCT/KR2008007711
申请日：2008-12-26
申请人： SAMSUNG ELECTRONICS CO LTD , BEIJING SAMSUNG TELECOM R&D CT , CHENG JINXIA , HE HONG , LIANG ZONGCHUANG
发明人： CHENG JINXIA , HE HONG , LIANG ZONGCHUANG
IPC分类号： H04B7/04 , H04L27/26
CPC分类号： H04L25/0232 , H04B7/0617 , H04B7/0639 , H04B7/066 , H04L25/022 , H04L25/0242 , H04L25/03343 , H04L27/2647 , H04L2025/03426 , H04L2025/03802
摘要： A signal processing method in an MIMO multi-carrier system is disclosed comprising: receiving by a receiver signals of a plurality of sub-carriers transmitted from a transmitter; dividing the sub-carriers into a plurality of sub-carrier blocks according to the correlation between adjacent sub-carriers, each sub-carrier block containing K sub-carriers; selecting a feedback sub-carrier pre-coding matrix ( ) and a rotation matrix ( ) for each sub-carrier block, and then sending the information on the pre-coding matrix and the rotation matrix back to the transmitting end. The present invention provides the method and device for effectively settling the feedback problem in an MIMO/OFDMA system, thereby greatly reducing the number of pre-coding weight matrices needed to feed back to the transmitting device.
摘要翻译：公开了一种MIMO多载波系统中的信号处理方法，包括：接收由发射机发送的多个子载波的信号; 根据相邻副载波之间的相关性将子载波划分为多个子载波块，每个子载波块包含K个子载波; 为每个子载波块选择反馈子载波预编码矩阵（）和旋转矩阵（），然后将关于预编码矩阵和旋转矩阵的信息发送回发送端。本发明提供了有效地解决MIMO / OFDMA系统中的反馈问题的方法和装置，从而大大减少了反馈给发射装置所需的预编码权重矩阵的数量。

3. 发明申请

WO2010002201A3 PRE-CODING METHOD AND APPARATUS BASED ON UPLINK SOUNDING AND CSI FEEDBACK CHANNEL INFORMATION 审中-公开
标题翻译：基于上行信道和CSI反馈信道信息的预编码方法及装置
公开(公告)号：WO2010002201A3
公开(公告)日：2010-04-15
申请号：PCT/KR2009003610
申请日：2009-07-02
申请人： SAMSUNG ELECTRONICS CO LTD , ZHOU LEI , ZHAO ZHENG , LIANG ZONGCHUANG
发明人： ZHOU LEI , ZHAO ZHENG , LIANG ZONGCHUANG
IPC分类号： H04J3/02 , H04B7/04
CPC分类号： H04B7/0417 , H04B7/0626 , H04L1/0026 , H04L27/2613
摘要： A signal communication method for a TDD communication system is provided, comprising steps of: at a transmitter, coding and modulating information bits, multiplying the resulting signal with a pre-coding matrix V and allocating them to OFDM sub-carriers for transmitting via antennas allowable for transmission, wherein the pre-coding matrix V is obtained based on an uplink sounding signal and CSI channel feedback information for the remaining antennas from a receiver; and at the receiver, processing the received signal, estimating a channel matrix H based on a pilot, performing pre-decoding and demodulating based on the estimated matrix H and outputting the resulting information bits. According to the present invention, the problem that the transmitter can not obtain CSI for all transmitting antennas within one frame due to the difference of antenna configurations between the uplink and the downlink in a MIMO system. Meanwhile, the system performance can be improved and the feedback overhead and the complexity of the receiver can be reduced.
摘要翻译：提供了一种用于TDD通信系统的信号通信方法，包括以下步骤：在发射机处对信息比特进行编码和调制，将得到的信号与预编码矩阵V相乘，并将其分配给OFDM子载波以便经由可允许的天线用于传输，其中预编码矩阵V是基于来自接收机的针对剩余天线的上行探测信号和CSI信道反馈信息而获得的; 并且在接收机处，处理接收到的信号，基于导频估计信道矩阵H，基于估计的矩阵H执行预解码和解调，并输出得到的信息比特。根据本发明，由于MIMO系统中上行链路和下行链路之间的天线配置的差异，发射机无法获得一帧内所有发射天线的CSI的问题。同时，可以提高系统性能，减少反馈开销和接收机的复杂度。

4. 发明申请

WO2009084859A2 TIME-DIFFERENCE ESTIMATION METHOD FOR LOCATION BASED SERVICES IN A CELLULAR NETWORK 审中-公开
标题翻译：用于在蜂窝网络中基于位置的服务的时差估计方法
公开(公告)号：WO2009084859A2
公开(公告)日：2009-07-09
申请号：PCT/KR2008007662
申请日：2008-12-24
申请人： SAMSUNG ELECTRONICS CO LTD , LIANG ZONGCHUANG
发明人： LIANG ZONGCHUANG
IPC分类号： H04W64/00 , G01S5/02
CPC分类号： G01S5/0252 , G01S5/0257 , G01S5/06 , G01S5/10 , H04W4/02 , H04W64/00 , H04W84/042
摘要： A time-difference estimation method for location based services in a cellular network comprises: estimating, by a terminal, the received power of a serving base station BS and the received power of other adjacent non-serving BSs, dividing the serving sector of the serving BS into a plurality of areas according to the estimation values; calculating, by the terminal, a compared parameter T and sending the compared parameter T to a location server via the serving BS; judging, by the location server, whether the compared parameter T is greater than a threshold or not, and if yes, then estimating, by the terminal, the power levels of the adjacent sectors of the serving BS and reporting these parameters to the system; determining, by the system according to said parameters, which specific area of the serving BS the terminal is located nearby; calculating user location information by the system or the terminal. With the present invention, defects of T-DOA and E-OTD based approaches can be compensated to improve precision for positioning a user who is located nearby the serving BS.
摘要翻译：用于蜂窝网络中的基于位置的服务的时差估计方法包括：由终端估计服务基站BS的接收功率和其他相邻非服务BS的接收功率，将服务的服务扇区 BS根据估计值分成多个区域; 由终端计算比较参数T，并经由服务BS将比较的参数T发送到位置服务器; 由位置服务器判断比较参数T是否大于阈值，如果是，则由终端估计服务BS的相邻扇区的功率电平并向系统报告这些参数; 由所述系统根据所述参数确定终端位于附近的服务BS的哪个特定区域; 由系统或终端计算用户位置信息。利用本发明，可以补偿基于T-DOA和E-OTD的方法的缺陷，以提高定位位于服务BS附近的用户的精度。

5. 发明申请

WO2010024556A2 SYSTEM FOR TRANSMITTING AND RECEIVING CHANNEL STATE INFORMATION 审中-公开
标题翻译：发送和接收信道状态信息的系统
公开(公告)号：WO2010024556A2
公开(公告)日：2010-03-04
申请号：PCT/KR2009004667
申请日：2009-08-21
申请人： SAMSUNG ELECTRONICS CO LTD , ZHOU LEI , ZHAO ZHENG , LIANG ZONGCHUANG
发明人： ZHOU LEI , ZHAO ZHENG , LIANG ZONGCHUANG
IPC分类号： H04B7/26
CPC分类号： H04L25/03343 , H04B7/0417 , H04B7/0626 , H04L5/1469 , H04L25/0204 , H04L25/0208 , H04L25/0224 , H04L25/0228 , H04L25/0242 , H04L25/0246 , H04L25/03955
摘要： A system for transmitting and receiving channel state information (CSI) is provided, in which a terminal receives a pilot signal transmitted from a transmitter; the terminal estimates CSI of part of downlink channels based on the received pilot signal; the terminal superposes the CSI of part of downlink channels onto a uplink sounding signal orthogonally, and transmits them together; the transmitter obtains the CSI of the rest part of downlink channels by estimating the uplink sounding signal; the transmitter performs orthogonal de-multiplexing on the received signal to obtain the CSI of the part of downlink channels; the transmitter, by using the CSI of the two parts of downlink channels, pre-codes downlink data and transmits it to the terminal. With the system of the present invention, it is possible to solve the problem that the transmitter can not obtain complete CSI due to the fact that uplink and downlink antenna configurations are not matched with each other. Accordingly, it is possible to improve system performance and reduce the complexity of the receiver. Meanwhile, system overhead can be suppressed.
摘要翻译：提供一种用于发送和接收信道状态信息（CSI）的系统，其中终端接收从发射机发送的导频信号; 终端基于接收到的导频信号估计部分下行链路信道的CSI; 终端将下行链路信道的一部分CSI叠加到上行探测信号上，并将其发送到一起; 发射机通过估计上行探测信号获取下行链路信道的其余部分的CSI; 发射机对接收到的信号执行正交解复用，以获得下行链路信道的部分的CSI; 发射机通过使用下行链路信道的两部分的CSI来预编码下行链路数据并将其发送到终端。利用本发明的系统，可以解决由于上行链路和下行链路天线配置彼此不匹配的事实，发送机不能获得完整的CSI的问题。因此，可以提高系统性能并降低接收机的复杂性。同时，可以抑制系统开销。

6. 发明申请

WO2010044644A3 METHOD AND APPARATUS FOR IDLE MODE NOTIFICATION IN CELLULAR COMMUNICATIONS SYSTEM 审中-公开
标题翻译：用于蜂窝通信系统中的空闲模式通知的方法和设备
公开(公告)号：WO2010044644A3
公开(公告)日：2010-07-29
申请号：PCT/KR2009005995
申请日：2009-10-16
申请人： SAMSUNG ELECTRONICS CO LTD , BEIJING SAMSUNG TELECOM R&D CT
发明人： WU QI , LIANG ZONGCHUANG
IPC分类号： H04W68/02 , H04W4/06 , H04W60/00
CPC分类号： H04W68/02 , H04W4/06 , H04W52/0219 , H04W52/0254 , H04W60/06 , Y02D70/00 , Y02D70/26
摘要： A method and an apparatus for idle mode notification in a cellular communications system are provided. A user transmits, prior to entering an idle mode, a de-registration request message to a Base Station (BS) which then transmits a Dynamic Service Addition REQuest (DSA-REQ) message to the user and adds the user to a multicast group for the idle mode, and enters the idle mode. The BS transmits an idle mode notification to the user using a Multicast/Broadcast Service map (MBS-MAP), and the user receives the idle mode notification, wherein the user switches to a unicast carrier to perform network reentry if the idle mode notification is a network reentry notification. The idle mode notification is considered as a service of an MBS type. When a user enters the idle mode, the BS actively invites the user to join the multicast group for idle mode notification if the MBS operates on a dedicated carrier.
摘要翻译：提供了蜂窝通信系统中用于空闲模式通知的方法和装置。用户在进入空闲模式之前向基站（BS）发送注销请求消息，基站然后向用户发送动态服务添加请求（DSA-REQ）消息并将用户添加到多播组中空闲模式，并进入空闲模式。 BS使用多播/广播服务映射（MBS-MAP）向用户发送空闲模式通知，并且用户接收空闲模式通知，其中，如果空闲模式通知是空闲模式通知，则用户切换到单播载波以执行网络再进入网络重新进入通知。空闲模式通知被认为是MBS类型的服务。当用户进入空闲模式时，如果MBS在专用载波上运行，BS将主动邀请用户加入多播组进行空闲模式通知。

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