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1. 发明专利

JP2008072744A Authentication procedure for verifying identity of mobile stations 有权
标题翻译：验证移动站标识的程序
公开(公告)号：JP2008072744A
公开(公告)日：2008-03-27
申请号：JP2007268200
申请日：2007-10-15
申请人： Ericsson Inc , エリクソンインコーポレイテッドEricsson Inc.
发明人： DENT PAUL W , CHENNAKESHU SANDEEP , RAMESH RAJARAM , REINHOLD STANLEY L
IPC分类号： H04L9/08 , H04L9/32 , H04B7/15 , H04B7/155 , H04B7/185 , H04B7/26 , H04Q7/38
CPC分类号： H04B7/18532 , H04B7/18558 , H04B7/18565
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for providing encryption of signals to be transmitted between mobile stations, and enabling mobile-to-mobile calls via a common relay station which decreases the amount of delay appearing in a system.
SOLUTION: During call setting, a key for encrypting signals transmitted from mobile stations is established. The signal transmitted between mobile stations and encrypted is periodically monitored at a mobile switching center and compared with the established key. If the encrypted signal does not match the established key, the connection is terminated.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于提供要在移动站之间传输的信号的加密的方法和装置，以及通过公共中继站实现移动电话到移动电话，该公共中继站减少系统中出现的延迟量。
解决方案：在呼叫设置期间，建立了用于加密从移动台发送的信号的密钥。在移动交换中心周期性地监视在移动台之间传输的信号和加密的信号，并与建立的密钥进行比较。如果加密信号与建立的密钥不匹配，则连接终止。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2007295603A Method and device which reduce co-channel interference 审中-公开
标题翻译：降低共通道干扰的方法和装置
公开(公告)号：JP2007295603A
公开(公告)日：2007-11-08
申请号：JP2007150828
申请日：2007-06-06
申请人： Ericsson Inc , エリクソンインコーポレイテッドEricsson Inc.
发明人： CHENNAKESHU SANDEEP , REINHOLD STANLEY LYNN
IPC分类号： H04Q7/36 , H04B7/185 , H04J3/06
CPC分类号： H04B7/18532
摘要： PROBLEM TO BE SOLVED: To reduce co-channel interference, in a satellite communication system which each of a plurality of cell clusters, each including at least one cell, includes at least one satellite transmitter for transmitting TDMA signal. SOLUTION: The method includes a step for transmitting time slot of TDMA signal in a first cell cluster at first selected time by a satellite transmitter, and a step for transmitting the same time slot of TDMA signal in a second cell cluster at second selected time by the satellite transmitter. The second selected time is delayed with the selected amount of delay from the first selected time. Consequently, co-channel interference is reduced between the time slot of the first cell cluster and the same time slot of the second cell cluster. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了减少同信道干扰，在卫星通信系统中，每个包括至少一个小区的多个小区簇中的每一个包括至少一个用于发送TDMA信号的卫星发射机。解决方案：该方法包括用于在第一选定时间由卫星发射机在第一小区簇中发送TDMA信号的时隙的步骤，以及用于在第二小区簇中在第二小区簇中发送TDMA信号的相同时隙的步骤选定时间由卫星发射机。第二选择的时间被延迟从所选择的第一时间的所选择的延迟量。因此，在第一小区簇的时隙与第二小区簇的相同时隙之间减少了同信道干扰。版权所有（C）2008，JPO＆INPIT

3. 发明申请

WO0021223A2 METHOD AND APPARATUS TO COMMUNICATE AUXILIARY AND LOCATION INFORMATION BETWEEN CELLULAR TELEPHONE NETWORK AND GLOBAL POSITIONING SYSTEM 审中-公开
标题翻译：传播蜂窝电话网络与全球定位系统之间的辅助和位置信息的方法和装置
公开(公告)号：WO0021223A2
公开(公告)日：2000-04-13
申请号：PCT/US9923382
申请日：1999-10-06
申请人： ERICSSON INC
发明人： WANG YI-PIN ERIC , CHENNAKESHU SANDEEP
IPC分类号： G01S1/00 , G01S5/00 , G01S19/25 , G01S19/37 , G01S19/44 , G01S19/46 , H04Q7/34 , H04Q7/36 , H04B7/26
CPC分类号： G01S5/0036 , G01S19/25 , G01S19/37 , G01S2205/008
摘要： A method and apparatus for communicating auxiliary information between a cellular telephone network and a GPS receiver positioned within a mobile station and identifying the location of the mobile station. A dedicated channel between the mobile station and the network is assigned by the network and uplink timing between the mobile station and the network is adjusted. The network requests auxiliary information and also requests the GPS receiver to perform a GPS code shift search at a common reference time. Upon receiving the auxiliary information, the network transmits the auxiliary information to the GPS receiver which then performs the GPS code shift search. The GPS receiver incorporates a bank of correlators and accumulators to perform multiple parallel searches for various Doppler frequency shifts resulting from a moving GPS receiver. The mobile station subsequently transmits the location information to the cellular telephone network.
摘要翻译：一种用于在蜂窝电话网络和位于移动站内的GPS接收机之间传送辅助信息并识别移动台的位置的方法和装置。通过网络分配移动台与网络之间的专用信道，调整移动台与网络之间的上行定时。网络请求辅助信息，并请求GPS接收机在公共参考时间执行GPS码移动搜索。在接收到辅助信息时，网络将辅助信息发送到GPS接收机，然后GPS接收机执行GPS码移动搜索。 GPS接收机包含一组相关器和累加器，以对移动的GPS接收机产生的各种多普勒频移进行多次并行搜索。移动台随后将位置信息发送到蜂窝电话网络。

4. 发明申请

WO0077940A8 MULTIPLE MODE RADIOTELEPHONES INCLUDING GLUE CIRCUITS AND RELATED METHODS AND CIRCUITS 审中-公开
标题翻译：包含电路的多模式放射性物质及其相关方法和电路
公开(公告)号：WO0077940A8
公开(公告)日：2001-10-25
申请号：PCT/US0013469
申请日：2000-05-16
申请人： ERICSSON INC
发明人： CHENNAKESHU SANDEEP , RYDBECK NILS
IPC分类号： H04B1/40 , H04B7/26 , H04M1/00 , H04M1/253 , H04Q7/38
CPC分类号： H04B1/406
摘要： A multiple mode radiotelephone provides radiotelephone communications using first and second radiotelephone communications modes. The multiple mode radiotelephone includes a first chip set providing radiotelephone communications according to the first radiotelephone communications mode, a second chip set providing radiotelephone communications according to the second radiotelephone communications mode, a user interface, and a glue circuit. The first chip set includes at least one integrated circuit chip, the second chip set includes at least one integrated circuit chip, and the first and second chip sets are distinct. The user interface accepts user input and provides user information. The glue circuit couples the user interface to the first chip set when providing radiotelephone communications according to the first radiotelephone communications mode, and the glue circuit couples the user interface to the second chip set when providing radiotelephone communications according to the second radiotelephone communications mode.
摘要翻译：多模式无线电话机使用第一和第二无线电话通信模式提供无线电话通信。多模式无线电话机包括根据第一无线电话通信模式提供无线电话通信的第一芯片组，根据第二无线电话通信模式提供无线电话通信的第二芯片组，用户接口和胶接电路。第一芯片组包括至少一个集成电路芯片，第二芯片组包括至少一个集成电路芯片，第一芯片组和第二芯片组是不同的。用户界面接受用户输入并提供用户信息。根据第一无线电话通信模式，当提供无线电话通信时， glue 电路将用户接口耦合到第一芯片组，并且胶接电路将用户接口耦合到第二芯片根据第二无线电话通信模式提供无线电话通信时设置。

5. 发明申请

WO0021316A9 HIGH POWER SHORT MESSAGE SERVICE USING TDMA FRAMES AND/OR BCCH 审中-公开
标题翻译：使用TDMA帧和/或BCCH的高功率短消息业务
公开(公告)号：WO0021316A9
公开(公告)日：2000-10-12
申请号：PCT/US9923215
申请日：1999-10-06
申请人： ERICSSON INC
发明人： CHENNAKESHU SANDEEP , RYDBECK NILS , HASSAN AMER A , DENT PAUL W
IPC分类号： H04J3/00 , H04B7/005 , H04B7/185 , H04B7/26 , H04L1/08 , H04W4/14 , H04W28/04 , H04W28/06 , H04W52/06 , H04W52/48 , H04W68/00 , H04Q7/22
CPC分类号： H04W68/00 , H04B7/18567 , H04L1/08 , H04W4/14 , H04W28/06 , H04W52/06 , H04W52/48
摘要： A method and system for transmitting short data messages in a control station-based TDMA radiocommunication system. Selected TDMA frames are assigned as message frames, and one or more data slots from each message frame are assigned to transmitter/receivers. Data messages can be encoded and transmitted multiple times, at an increased power level, from a control station to a transmitter/receiver over the appropriate data slots in each message frame. The selected TDMA frames are preferably slow associated control channel frames. Also, short alphanumeric messages can be transmitted over the broadcast control channel of a digital radiocommunication link, or another communication channel consisting of one or more slots from successive frames in a TDMA communication link. An increase in transmission power is used in combination with repetition to increase effective signal margin without complications in the mobile unit design, significant delay, or co-channel interference. Where a more significant increase in signal margin is desired, when a longer message is required, or for voice messages, the message may be stored and the mobile unit alerted of the messages.
摘要翻译：一种在基于控制站的TDMA无线通信系统中传输短数据消息的方法和系统。选定的TDMA帧被指定为消息帧，并且来自每个消息帧的一个或多个数据时隙被分配给发射机/接收机。数据消息可以通过每个消息帧中适当的数据时隙从控制站到发射机/接收机以增加的功率电平进行多次编码和传输。选择的TDMA帧最好是慢速相关的控制信道帧。而且，可以通过数字无线电通信链路的广播控制信道或者由TDMA通信链路中的连续帧的一个或多个时隙组成的另一个通信信道来发送短的字母数字消息。发射功率的增加与重复结合使用以增加有效信号裕量，而不会在移动单元设计，显着延迟或同频道干扰方面造成困难。在需要更大幅度增加信号容限的情况下，当需要更长的消息时，或者对于语音消息，可以存储消息并且移动单元警报消息。

6. 发明申请

WO9962203A3 MEASUREMENT TECHNIQUES FOR DIVERSITY AND INTER-FREQUENCY MOBILE ASSISTED HANDOFF 审中-公开
标题翻译：用于多样性和频移移动辅助手柄的测量技术
公开(公告)号：WO9962203A3
公开(公告)日：2000-03-30
申请号：PCT/US9909830
申请日：1999-05-05
申请人： ERICSSON INC
发明人： RAJARAM RAMESH , CHENNAKESHU SANDEEP , BOTTOMLEY GREGORY E
IPC分类号： H04B7/08 , H04B7/12 , H04B7/26 , H04W88/02 , H04Q7/32 , H04Q7/38
CPC分类号： H04W88/02 , H04B7/0808 , H04W24/10 , H04W36/06
摘要： Diversity and inter-frequency mobile-assisted handoff (MAHO) are achieved under continuous reception cellular access methods by using strategic timing and switching optimizations. Strategic timing is achieved by avoiding the non-reception of power control bits. For example, the mobile terminal can make measurements for diversity in the last eight bits of a sub-frame of an IS-95 downlink transmission. Switching is optimized, for example, by storing rake taps for a first antenna prior to switching to a second antenna so that the rake tap positions can be restored upon returning to the first antenna. With these and other disclosed measurement techniques, the benefits of diversity and inter-frequency MAHO can be achieved in continuous reception cellular systems.
摘要翻译：通过使用战略时序和切换优化，在连续接收蜂窝接入方式下实现分集和频间移动辅助切换（MAHO）。通过避免电源控制位的不接收来实现战略时序。例如，移动终端可以对IS-95下行链路传输的子帧的最后8位中的分集进行测量。优化切换，例如，在切换到第二天线之前，通过存储用于第一天线的倾斜抽头，使得在返回到第一天线时可以恢复前叉抽头位置。利用这些和其他公开的测量技术，可以在连续接收蜂窝系统中实现分集和频间MAHO的益处。

7. 发明申请

WO9827663A3 System for improving the quality of a received radio signal 审中-公开
标题翻译：提高接收无线电信号质量的系统
公开(公告)号：WO9827663A3
公开(公告)日：1998-08-06
申请号：PCT/US9722605
申请日：1997-12-15
申请人： ERICSSON INC
发明人： CHENNAKESHU SANDEEP , BOTTOMLEY GREGORY E , DENT PAUL W
IPC分类号： H04B1/12 , H04B1/713 , H04B1/715 , H04B7/04 , H04B7/06 , H04B7/08 , H04B7/12 , H04J3/00 , H04L1/06 , H04L1/08
CPC分类号： H04B7/0894 , H04B1/126 , H04B1/713 , H04B1/715 , H04B7/0671 , H04B7/084
摘要： A delay spread is created in a digital radio signal to reduce the coherence bandwidth and facilitate frequency hopping to reduce the effect of fading losses within an enclosed propagation environment. The delay spread is introduced into the signal in several ways. One technique disclosed employs a transmitter (21) with two separate antennas (26, 27) one of which transmits the digital signal and the other of which transmits the same signal after a phase delay (25) has been introduced into the signal. The carrier frequency of the signals is hopped between at least two frequencies and the receiver processes the resulting signals. In another embodiment, a single transmit antenna (42) is used but the signal is received by two different antennas (43, 44) with the output signal from one of those antennas being phase delayed (45) before combining (46) it with the other prior to processing by the receiver circuitry (47). Phase delay (115) is also introduced at baseband into the signals to be transmitted by rotating the I and Q components of the waveforms before modulation.

8. 发明专利

AT450933T 未知
公开(公告)号：AT450933T
公开(公告)日：2009-12-15
申请号：AT00932503
申请日：2000-05-16
申请人： ERICSSON INC
发明人： CHENNAKESHU SANDEEP , RYDBECK NILS
IPC分类号： H04B1/40 , H04B7/26 , H04M1/00 , H04M1/253 , H04Q7/38

9. 发明专利

CA2275283C SYSTEM FOR IMPROVING THE QUALITY OF A RECEIVED RADIO SIGNAL 未知
公开(公告)号：CA2275283C
公开(公告)日：2006-12-05
申请号：CA2275283
申请日：1997-12-15
申请人： ERICSSON INC
发明人： BOTTOMLEY GREGORY E , CHENNAKESHU SANDEEP , DENT PAUL W
IPC分类号： H04B7/04 , H04B1/12 , H04B1/713 , H04B1/715 , H04B7/06 , H04B7/08 , H04B7/12 , H04J3/00 , H04L1/06 , H04L1/08
摘要： A delay spread is created in a digital radio signal to reduce the coherence bandwidth and facilitate frequency hopping to reduce the effect of fading losses within an enclosed propagation environment. The dela y spread is introduced into the signal in several ways. One technique disclosed employs a transmitter (21) with two separate antennas (2 6, 27) one of which transmits the digital signal and the other of which transmits the same signal after a phase delay (25) has been introduced into the signal. The carrier frequency of the signals is hopped between at least two frequencies and the receiver processes the resulting signals. In another embodiment, a single transmit antenna (42) is used but the signal is received by two different antennas (43, 44) with the output signal from one of those antennas being phase delayed (45) before combining (46) it with the other prior to processing by the receiver circuitry (47). Phase delay (115) is also introduced at baseband into the signals to be transmitted by rotating the I and Q components of the waveforms before modulation.

10. 发明专利

DE69835096D1 未知
公开(公告)号：DE69835096D1
公开(公告)日：2006-08-10
申请号：DE69835096
申请日：1998-09-25
申请人： ERICSSON INC
发明人： CHENNAKESHU SANDEEP , KOILPILLAI DAVID
IPC分类号： H04L1/00
摘要： An important consideration in a coded modulation scheme is the choice of the component codes, which has a significant impact on the overall bit error rate performance and which determines the decoding complexity. Methods and apparatus employing product codes are described that can improve the performance of selected classes of information in the coded modulation scheme without affecting the decoding complexity or performance of other classes of information.

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