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1. 发明申请

WO2007084046A1 BROADCAST-CENTRIC CELLULAR COMMUNICATION SYSTEM, METHOD, AND MOBILE STATION 审中-公开
标题翻译：广播中心蜂窝通信系统，方法和移动站
公开(公告)号：WO2007084046A1
公开(公告)日：2007-07-26
申请号：PCT/SE2006/050512
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： H04W68/10 , H04B7/022
摘要： A broadcast-centric cellular communication system 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. The system constructs an identical paging signal at the plurality of base stations, and controls the base stations to simultaneously transmit the identical paging signal. A mobile station camps on a paging channel that is common to the plurality of base stations, and listens to paging messages being simultaneously broadcast by the plurality of base stations. The mobile station selects a base station having a suitable signal quality, and transmits to the selected base station, a response to a paging message addressed to the mobile station.
摘要翻译：以广播为中心的蜂窝通信系统通过利用具有在多个关联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益处来改善广播信道性能。该系统在多个基站处构造相同的寻呼信号，并且控制基站同时发送相同的寻呼信号。移动台驻留在多个基站共用的寻呼信道上，并且收听由多个基站同时广播的寻呼消息。移动站选择具有适当信号质量的基站，并向所选择的基站发送对寻址到移动台的寻呼消息的响应。

2. 发明申请

WO2006035292A2 PARAMETER ESTIMATE INITIALIZATION USING INTERPOLATION 审中-公开
标题翻译：使用插值的参数估计初始化
公开(公告)号：WO2006035292A2
公开(公告)日：2006-04-06
申请号：PCT/IB2005/002859
申请日：2005-09-27
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)
发明人： COZZO, Carmela , BOTTOMLEY, Gregory, E. , RAMESH, Rajaram
IPC分类号： H04B1/707
CPC分类号： H04B1/712 , H04B1/7117 , H04B2201/709727
摘要： A receiver is described herein that is capable of receiving and processing a radio signal and further capable of using interpolation to initialize receiver parameters when there is a change in at least one delay associated with the received radio signal or when there is at least one new correlator position. For instance, the receiver parameters that can be initialized include: (1) channel coefficients; (2) AFC parameters; (3) tracking parameters; (4) noise statistics (noise correlations); (5) signal statistics (channel coefficient correlations); (6) data statistics (despread values or chip samples); or (7) combining weights.
摘要翻译：本文描述了一种接收机，其能够接收和处理无线电信号，并且还能够在存在与所接收的无线电信号相关联的至少一个延迟中的变化时或者当存在至少一个新的相关器时使用内插来初始化接收机参数位置。例如，可以初始化的接收机参数包括：（1）信道系数; （2）AFC参数; （3）跟踪参数; （4）噪声统计（噪声相关）; （5）信号统计（信道系数相关）; （6）数据统计（去扩展值或芯片样本）; 或（7）组合权重。

3. 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。

4. 发明申请

WO2007003979A1 METHOD AND ARRANGEMENT FOR ESTIMATING DC OFFSET 审中-公开
标题翻译：估计直流偏差的方法和布置
公开(公告)号：WO2007003979A1
公开(公告)日：2007-01-11
申请号：PCT/IB2005/001880
申请日：2005-07-01
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , HUI, Dennis , RAMESH, Rajaram
发明人： HUI, Dennis , RAMESH, Rajaram
IPC分类号： H04L25/06
CPC分类号： H04L25/063 , H04L25/061
摘要： A method and arrangement for estimating a DC offset for a signal received in a radio receiver. The received signal includes a digitally modulated signal component, a DC offset component, and a noise component. When the signal is of a known type, such as a Gaussian Minimum Shift Keying (GMSK)-modulated signal with constant amplitude in a GSM/EDGE cellular radio system, the method exploits the known characteristics of the statistical distribution for the known type of signal to obtain a better estimate of the DC offset. The statistical distribution of the received digitally modulated signal component is first analyzed. That statistical distribution is then compared to the known statistical distribution for the known type of signal to identify differences. The differences are then used to estimate the DC offset. Additional iterations may be performed to further improve the DC estimate.
摘要翻译：一种用于估计在无线电接收机中接收的信号的DC偏移的方法和装置。接收到的信号包括数字调制信号分量，DC偏移分量和噪声分量。当信号是GSM / EDGE蜂窝无线电系统中具有恒定振幅的已知类型的高斯最小移频键控（GMSK）调制信号时，该方法利用了已知类型信号的已知统计分布特征以获得对DC偏移的更好的估计。首先分析接收到的数字调制信号分量的统计分布。然后将统计分布与已知的信号类型的统计分布进行比较以识别差异。然后使用差异来估计DC偏移。可以执行另外的迭代以进一步改善DC估计。

5. 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).

6. 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。

7. 发明申请

WO2009081263A3 QUICK PAGING IN TELECOMMUNICATION SYSTEMS 审中-公开
公开(公告)号：WO2009081263A3
公开(公告)日：2009-07-02
申请号：PCT/IB2008/003550
申请日：2008-12-18
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , RAMESH, Rajaram , BALACHANDRAN, Kumar , KOORAPATY, Havish
发明人： RAMESH, Rajaram , BALACHANDRAN, Kumar , KOORAPATY, Havish
IPC分类号： H04W68/02
摘要： In an orthogonal frequency division multiple access communication system, unused frequency resources during a conventional preamble signal are used for a quick paging mechanism. A set of quick paging signals is sent over the unused frequency resources to signal one or more subscriber stations.

8. 发明申请

WO2009061403A3 UPLINK RADIO FRAMES APPORTIONED FOR PLURAL MULTIPLE ACCESS TECHNOLOGIES 审中-公开
公开(公告)号：WO2009061403A3
公开(公告)日：2009-05-14
申请号：PCT/US2008/012479
申请日：2008-11-05
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , BALACHANDRAN, Kumar , ERNSTROM, Per , KOORAPATY, Havish , RAMESH, Rajaram , THAKARE, Kiran
发明人： BALACHANDRAN, Kumar , ERNSTROM, Per , KOORAPATY, Havish , RAMESH, Rajaram , THAKARE, Kiran
IPC分类号： H04L27/28
摘要： Frames of information are communicated between a base station (28) of a radio access network (RAN) and plural types of wireless terminals (30). Frame handlers of the base station and of certain types of wireless terminals (30-2) process differing portions of the frame according to respective differing multiple access technologies. In differing embodiments and implementations, modulation techniques of the differing multiple access technologies can be apportioned to differing portions of the frame in various manners, such as (for example) to differing subframes of a multi- sub-framed frame or to differing burst fields or sections of an uplink (UL) burst.

9. 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。

10. 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。

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