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11. 发明申请

WO2005120093A1 SIGNAL STRENGTH MEASUREMENTS IN CELLULAR TELECOMMUNICATION SYSTEMS 审中-公开
标题翻译：细胞电信系统信号强度测量
公开(公告)号：WO2005120093A1
公开(公告)日：2005-12-15
申请号：PCT/SE2005/000699
申请日：2005-05-16
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： RAMESH, Rajaram
IPC分类号： H04Q7/20
CPC分类号： H04B17/318 , H04L25/0212 , H04L25/0228 , H04W36/30
摘要： A mobile station, MS, and method for estimating received signal strength of a radio signal from a neighboring cell in a cellular radio telecommunication network. The MS measures (11) the received signal strength of the radio signal over a plurality of frames, and calculates (12) an average received signal strength. During an idle frame, the MS receives (13) a synchronization channel, SCH, signal, and determines (14) a channel estimate for the SCH using a known extended training sequence. The extended training sequence is then modified (15) with the channel estimate, and the modified extended training sequence is subtracted (16) from the received SCH signal to obtain a residual signal. The MS calculates (16) a residual energy of the residual signal, and subtracts (17) the residual energy from the average received signal strength of the radio signal to obtain an estimated received signal strength of the radio signal from the neighboring cell.
摘要翻译：一种用于估计来自蜂窝无线电信网络中的相邻小区的无线电信号的接收信号强度的移动站，MS和方法。 MS测量（11）多个帧上的无线电信号的接收信号强度，并计算（12）平均接收信号强度。在空闲帧期间，MS接收（13）同步信道SCH信号，并使用已知的扩展训练序列确定（14）SCH的信道估计。然后利用信道估计修改扩展训练序列（15），并从接收的SCH信号中减去修改的扩展训练序列（16）以获得残留信号。 MS计算（16）剩余信号的剩余能量，并从无线电信号的平均接收信号强度中减去（17）剩余能量，以获得来自相邻小区的无线电信号的估计接收信号强度。

12. 发明申请

WO2006001748A3 METHOD AND APPARATUS FOR DECODING OF TURBO ENCODED DATA IN A COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2006001748A3
公开(公告)日：2006-01-05
申请号：PCT/SE2005/000925
申请日：2005-06-28
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)
发明人： BOTTOMLEY, Gregory, E. , RAMESH, Rajaram , CHENG, Jung-Fu
IPC分类号： H03M13/39
摘要： A method and apparatus for decoding turbo encoded data. A first turbo decoding iteration is performed (42) to produce a most likely sequence of symbols, each symbol having an amplitude value and a positive or negative sign. The sequence of symbols is error checked (43), and if an error is detected, the apparatus forms a next most likely sequence by reversing the positive or negative sign of the symbol having the smallest amplitude. If an error is again detected (47), additional sign reversals are performed on symbols with larger amplitudes, and on multiple symbols. Each modification is error checked. If none of the modifications produce an error-free sequence, and a maximum number of modifications are performed (48), the apparatus performs another turbo decoding iteration to produce another sequence of symbols. The process is then repeated until an error-free sequence is produced or a maximum number of iterations are performed (49).

13. 发明申请

WO2004112317A1 SYSTEM AND METHOD FOR LOCATING A WIRELESS LOCAL AREA NETWORK 审中-公开
标题翻译：用于定位无线局域网的系统和方法
公开(公告)号：WO2004112317A1
公开(公告)日：2004-12-23
申请号：PCT/IB2004/002009
申请日：2004-06-16
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)
发明人： BALACHANDRAN, Kumar , KOORAPATY, Havish , RAMESH, Rajaram
IPC分类号： H04L12/28
CPC分类号： H04W84/12 , H04W24/00 , H04W48/08 , H04W64/00
摘要： A system and method for finding a wireless local area network, WLAN, when a mobile terminal is connected to a cellular network. A position associated with each WLAN operating within the coverage area of the cellular network is stored in a database. At predefined intervals or conditions, the system determines a current position of the mobile terminal, and determines whether the current position of the mobile terminal is close enough to a stored WLAN position for the mobile terminal to connect to WLAN corresponding to the stored WLAN position. If so, a notification is sent to the mobile terminal indicating that the mobile terminal is within range of the identified WLAN. The mobile terminal then scans for the identified WLAN.
摘要翻译：一种当移动终端连接到蜂窝网络时找到无线局域网（WLAN）的系统和方法。与在蜂窝网络的覆盖区域内操作的每个WLAN相关联的位置被存储在数据库中。在预定义的间隔或条件下，系统确定移动终端的当前位置，并且确定移动终端的当前位置是否足够接近存储的WLAN位置，以便移动终端连接到与存储的WLAN位置对应的WLAN。如果是，则向移动终端发送指示移动终端在所识别的WLAN的范围内的通知。移动终端然后扫描所识别的WLAN。

14. 发明申请

WO2008153461A1 SEMI-PERSISTENT RESOURCE ALLOCATION METHOD FOR UPLINK TRANSMISSION IN WIRELESS PACKET DATA SYSTEMS 审中-公开
标题翻译：无线分组数据系统中上行链路传输的半密集资源分配方法
公开(公告)号：WO2008153461A1
公开(公告)日：2008-12-18
申请号：PCT/SE2007/050788
申请日：2007-10-26
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： RAMESH, Rajaram , BALACHANDRAN, Kumar , KOORAPATY, Havish
IPC分类号： H04Q7/32 , H04L1/18
CPC分类号： H04W72/0446 , H04L1/08 , H04L1/1812 , H04L1/1825 , H04L1/1887 , H04W72/0406
摘要： A wireless telecommunications network supplies a semi-persistent resource that a wireless station (30) can use for special purposes (such as a retransmission of packets for ARQ purposes or a control signal. The semi-persistent resource can be allocated by the system to other terminals if, e.g., a retransmission is not required. Since a retransmission is generally performed in response to a NACK received from a base station (28), the NACK may itself serve as a token that permits the wireless station (30) to use the semi-persistent allocation. Thus, the technology includes, e.g., a method for resource allocation on a semi-persistent basis and efficient signaling for the usage of such allocation.
摘要翻译：无线电信网络提供无线站（30）可以用于特殊目的的半持久资源，例如用于ARQ目的的分组重传或控制信号。如果不需要再传送，则半持久资源可以由系统分配给其他终端。由于通常响应于从基站（28）接收的NACK执行重传，所以NACK本身可以用作允许无线站（30）使用半持久分配的令牌。因此，该技术包括例如在半持久基础上的资源分配方法和用于这种分配的使用的有效信令。

15. 发明申请

WO2007007150A1 METHOD AND BASE STATION CONTROLLER FOR HANDOVER OF SIMULTANEOUS VOICE AND DATA SESSIONS 审中-公开
标题翻译：方法和基站控制器，用于同时进行语音和数据会话的切换
公开(公告)号：WO2007007150A1
公开(公告)日：2007-01-18
申请号：PCT/IB2006/001861
申请日：2006-07-05
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： BALACHANDRAN, Kumar , RAMESH, Rajaram
IPC分类号： H04Q7/38 , H04L12/56
CPC分类号： H04W36/0033
摘要： A method and base station controller (BSC) in a GPRS/EDGE cellular radio telecommunication system for controlling a handover of a mobile station (MS) conducting both a circuit-switched call and a packet data session, and for rapidly reestablishing the packet data session. The BSC determines from measurement reports that a handover of the MS is imminent. The BSC sends both packet system information and Dual Transfer Mode (DTM) information relevant in the target cell to the MS prior to a handover command. When the handover is complete, the BSC may also send a pseudo cell update message to a serving SGSN. The message includes an identifier of the MS and appears to the SGSN to be from the MS. After the circuit-switched call is reconnected, the packet data session is rapidly reestablished utilizing the information sent to the mobile station prior to the handover command, and without having to send a cell update message from the MS.
摘要翻译： GPRS / EDGE蜂窝无线电电信系统中的方法和基站控制器（BSC），用于控制进行电路交换呼叫和分组数据会话的移动台（MS）的切换，并且用于快速重新建立分组数据会话。 BSC从测量报告确定MS的切换即将来临。在切换命令之前，BSC将目标小区中相关的分组系统信息和双传输模式（DTM）信息发送到MS。当切换完成时，BSC还可以向服务SGSN发送伪小区更新消息。消息包括MS的标识符，并且向SGSN显示来自MS。在重新连接电路交换呼叫之后，利用在切换命令之前发送到移动台的信息，并且不必从MS发送小区更新消息，迅速重新建立分组数据会话。

16. 发明申请

WO2006126954A1 A METHOD AND APPARATUS FOR SIGNAL QUALITY LOSS COMPENSATION IN MULTIPLEXING TRANSMISSION SYSTEMS 审中-公开
标题翻译：多路传输系统信号质量损失补偿的方法与装置
公开(公告)号：WO2006126954A1
公开(公告)日：2006-11-30
申请号：PCT/SE2006/050040
申请日：2006-03-23
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： GRANT, Stephen, J. , CHENG, Jung-fu, Thomas , MOLNAR, Karl, J. , WANG, Yi-pin, Eric , RAMESH, Rajaram
IPC分类号： H04L1/00
CPC分类号： H04L1/0026 , H04B7/061 , H04B7/0678 , H04B7/0691 , H04B7/0697 , H04B17/309 , H04L1/0003 , H04L1/0009 , H04L1/0033 , H04L1/06 , H04L1/20 , H04L5/0057 , H04W24/10
摘要： A wireless communication receiver receiving a multiplexed signal comprising two or more signal streams calculates a received signal quality for the multiplexed signal as a function of stream-specific received signal qualities, determines one or more loss parameters indicative of variations in the stream-specific received signal qualities, and generates quality feedback based on such information. In turn, a transmitter controls the selection of one or more transmission parameters of the multiplexed signal based on the quality feedback, such that its transmit link adaptations account for the losses in received signal quality at the receiver arising from the variations in the stream-specific received signal qualities. The quality feedback may include calculated loss values, or parameter/penalties that permit loss calculation, and the method applies to both code multiplexing and spatial multiplexing.
摘要翻译：接收包括两个或多个信号流的多路复用信号的无线通信接收机根据流专用接收信号质量计算多路复用信号的接收信号质量，确定一个或多个指示流特定接收信号变化的丢失参数质量，并根据这些信息产生质量反馈。反过来，发射机基于质量反馈来控制对多路复用信号的一个或多个传输参数的选择，使得其发射链路适应性考虑到接收机的接收信号质量中由于流特定的变化引起的损耗收到信号质量。质量反馈可以包括计算的损失值或允许损耗计算的参数/惩罚，并且该方法适用于码复用和空间复用两者。

17. 发明申请

WO2005107126A1 IMPROVED INCREMENTAL REDUNDANCY OPERATION IN A WIRELESS COMMUNICATION NETWORK 审中-公开
标题翻译：改善无线通信网络中的冗余冗余运行
公开(公告)号：WO2005107126A1
公开(公告)日：2005-11-10
申请号：PCT/EP2005/051085
申请日：2005-03-10
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)
发明人： SINGVALL, Jakob , RAMESH, Rajaram , AXNÄS, Johan , JÖNSSON, Tomas
IPC分类号： H04L1/16
CPC分类号： H04L1/1614 , H04L1/0026 , H04L1/0068 , H04L1/1671 , H04L1/1819
摘要： The invention relates to incremental redundancy schemes in wireless networks, where a number of sub-blocks, transmitted from the transmitting side, are received (S1) by the intended receiver on the receiving side. The idea according to the invention is to measure (S2), for at least one data block, the reception quality of received sub-blocks, and select (S3) which sub-block to set forth for transmission from the transmitting side based on the measured sub-block reception quality. For example, when all or several subblocks of a given data block have been received but the data block can still not be successfully decoded, it would normally be best to retransmit the sub-block that has the lowest quality. This generally increases the probability of successful decoding of the data block, thus increasing the throughput and reducing the delay.
摘要翻译：本发明涉及无线网络中的增量冗余方案，其中从发送侧发送的多个子块由接收侧的预期接收机接收（S1）。根据本发明的想法是对于至少一个数据块，对接收到的子块的接收质量进行测量（S2），并且基于（S2）从发送侧选择（S3）要发送的用于发送的子块测量子块接收质量。例如，当已经接收到给定数据块的全部或几个子块，但数据块仍然不能被成功解码时，通常情况下最好重发具有最低质量的子块。这通常增加了成功解码数据块的概率，从而增加了吞吐量并减少了延迟。

18. 发明申请

WO2005107127A1 IMPROVED INCREMENTAL REDUNDANCY OPERATION IN A WIRELESS COMMUNICATION NETWORK 审中-公开
标题翻译：改善无线通信网络中的冗余冗余运行
公开(公告)号：WO2005107127A1
公开(公告)日：2005-11-10
申请号：PCT/EP2005/051094
申请日：2005-03-10
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)
发明人： SINGVALL, Jakob , RAMESH, Rajaram , AXNÄS, Johan , JÖNSSON, Tomas
IPC分类号： H04L1/16
CPC分类号： H04L1/1819 , H04L1/0026 , H04L1/0068 , H04L1/1614 , H04L1/1671 , H04L1/1854 , H04L1/1874
摘要： The invention relates to incremental redundancy operation, and a basic idea of the invention is to provide an extended acknowledgment feedback (S8, S10), for each of a number of data blocks, from the receiving side to the transmitting side to enable indication whether (S6, S7) any soft information associated with at least one sub-block of the data block has been stored in memory at the receiving side. This information helps the transmitter to select which of the data blocks that may be suitable to retransmit next For example, by first retransmitting data blocks for which one or more sub-blocks are already stored in the receiver memory, the probability of successful decoding of these data blocks increases, and thus the corresponding sub-blocks can be removed from memory, allowing room for sub-blocks of new data blocks. This significantly improves the utilization of the memory on the receiving side, increases throughput and reduces delay.
摘要翻译：本发明涉及增量冗余操作，本发明的基本思想是为从接收侧到发送侧的多个数据块中的每一个提供扩展确认反馈（S8，S10），以使得能够指示（ S6，S7）与数据块的至少一个子块相关联的任何软信息已被存储在接收侧的存储器中。该信息有助于发射机选择适合于下一个重传的哪些数据块例如，通过首先重传已经存储在接收机存储器中的一个或多个子块的数据块，成功解码这些数据块的概率数据块增加，从而可以从存储器移除相应的子块，从而允许新数据块的子块的空间。这显着提高了接收端存储器的利用率，增加了吞吐量并减少了延迟。

19. 发明申请

WO2008108698A1 METHOD AND APPARATUS FOR RESOURCE REUSE IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：通信系统资源重用的方法与装置
公开(公告)号：WO2008108698A1
公开(公告)日：2008-09-12
申请号：PCT/SE2007/050236
申请日：2007-04-12
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： RAMESH, Rajaram , CHENG, Jung-Fu , KOORAPATY, Havish , BOTTOMLEY, Gregory
IPC分类号： H04L1/00 , H04B17/00 , H04Q7/22
CPC分类号： H04W72/0406 , H04B2201/709727 , H04W4/18 , H04W48/08 , H04W72/082
摘要： Method and apparatuses taught herein enable link adaptation feedback to be determined in advance for future transmit intervals, based on one or more data sending units sending indications of future transmit resource allocations, and receiving corresponding link adaptation feedback from data receiving units. Knowledge of the future transmit resource allocations enable individual data sending units to predict interference conditions for the future transmit interval, and thereby compute link adaptation feedback that takes advantage of low- interference conditions. Individual data sending units receive link adaptation feedback for the future transmit interval from the data receiving units they are supporting, and make corresponding link adaptations for the future transmit interval. Such operations are, in one or more embodiments, carried out in a Wideband Code Division Multiple Access (WCDMA), Long Term Evolution LTE), or WiMAX network, wherein the data sending units comprise radio base stations, and the data receiving units comprise wireless communication devices.
摘要翻译：基于一个或多个数据发送单元发送未来发送资源分配的指示，以及从数据接收单元接收相应的链路适配反馈，本文教导的方法和装置使能够针对未来的发射间隔预先确定链路自适应反馈。对未来发射资源分配的了解使各个数据发送单元能够预测未来发射间隔的干扰条件，从而计算利用低干扰条件的链路自适应反馈。单个数据发送单元从其所支持的数据接收单元接收针对未来发射间隔的链路自适应反馈，并且为将来发射间隔做出相应的链路适配。在一个或多个实施例中，这样的操作在宽带码分多址（WCDMA），长期演进LTE）或WiMAX网络中进行，其中数据发送单元包括无线电基站，并且数据接收单元包括无线通讯设备。

20. 发明申请

WO2007084047A1 BROAD-CAST CENTRIC CELLULAR COMMUNICATION SYSTEM, METHOD, AND MOBILE STATION 审中-公开
标题翻译： BROAD-CAST中央蜂窝通信系统，方法和移动站
公开(公告)号：WO2007084047A1
公开(公告)日：2007-07-26
申请号：PCT/SE2006/050514
申请日：2006-11-28
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： RAMESH, Rajaram , ZANGI, Kambiz , BALACHANDRAN, Kumar
IPC分类号： H04Q7/38 , H04L27/26 , H04Q7/32
CPC分类号： H04B7/022 , H04W48/12
摘要： The present invention relates to a broadcast-centric cellular communication system that improves broadcast channel performance by exploiting the benefits of macro-diversity in a cellular communication system having a plurality of base stations that transmit signals within a plurality of associated cells. System-specific control information common to all cells is synchronously and simultaneously broadcast from multiple base stations using a broadcast channel that is identical across the entire system. Cell-specific control information is transmitted individually from each base station. Mobile stations use the broadcast information for initial synchronization to the system, and to obtain most relevant system information. After system synchronization, the mobile stations identify the connected cell through a physical layer characteristic, and perform initial access to the system. The invention furthermore relates to a mobile station for operating in such communication system and a method in said mobile station.
摘要翻译：本发明涉及一种以广播为中心的蜂窝通信系统，其通过利用具有在多个相关小区内发送信号的多个基站的蜂窝通信系统中的宏分集的优点来改善广播信道性能。使用在整个系统上相同的广播信道，从多个基站同步并同时广播所有小区公用的系统特定的控制信息。每个基站单独发送小区特定的控制信息。移动台使用广播信息进行系统的初始同步，并获得最相关的系统信息。在系统同步之后，移动台通过物理层特征识别连接的小区，并对系统进行初始访问。本发明还涉及用于在这种通信系统中操作的移动站和所述移动站中的方法。

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