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31. 发明授权

US5999816A Method and apparatus for performing mobile assisted hard handoff between communication systems 失效
标题翻译：用于在通信系统之间执行移动辅助硬切换的方法和装置
公开(公告)号：US5999816A
公开(公告)日：1999-12-07
申请号：US816746
申请日：1997-02-18
申请人： Edward G. Tiedemann, Jr. , Tao Chen
发明人： Edward G. Tiedemann, Jr. , Tao Chen
IPC分类号： H04W36/14 , H04Q7/00
CPC分类号： H04W36/14 , H04W36/0066 , H04W36/245 , H04W24/00 , H04W28/18 , H04W36/0083 , H04W48/16 , H04W76/028
摘要： A method and apparatus for performing inter-system hard handoff between communication systems or inter-frequency hard handoff within a CDMA communication system is disclosed. The purpose of this invention is to reduce the probability of dropped calls during inter-system hard handoff. In the event that a hard handoff attempt is unsuccessful, the mobile station will return to the original system with information which the communication system of the present invention uses to assist in the performance of future handoff attempts. Alternatively, with no handoff attempt made, the mobile station monitors the destination system then returns to the original system with information used to assist in subsequent handoff attempts. The information returned from monitoring a CDMA system consists of results of a search for one or more pilots given at offsets in a specific list provided to the mobile station by the base station or a set of offsets based upon a predetermined search algorithm.
摘要翻译：公开了一种用于在CDMA通信系统内进行通信系统之间的系统间硬切换或频间硬切换的方法和装置。本发明的目的是降低在系统间硬切换期间掉话的可能性。在硬切换尝试不成功的情况下，移动台将利用本发明的通信系统用于协助未来切换尝试的执行的信息返回到原始系统。或者，在没有进行切换尝试的情况下，移动台监视目的地系统，然后利用用于辅助随后的切换尝试的信息返回到原始系统。从监视CDMA系统返回的信息包括搜索由基站提供给移动台的特定列表中的偏移处给出的一个或多个导频的结果或基于预定搜索算法的一组偏移量的结果。

32. 发明授权

US08774816B2 Dynamic shared forward link channel for a wireless communication system 有权
标题翻译：用于无线通信系统的动态共享前向链路信道
公开(公告)号：US08774816B2
公开(公告)日：2014-07-08
申请号：US12793794
申请日：2010-06-04
申请人： Tao Chen , Baaziz Achour , Brian K. Butler , Edward G. Tiedemann, Jr. , Haitao Zhang , Keith W. Saints , Luca Blessent , Yongbin Wei
发明人： Tao Chen , Baaziz Achour , Brian K. Butler , Edward G. Tiedemann, Jr. , Haitao Zhang , Keith W. Saints , Luca Blessent , Yongbin Wei
IPC分类号： H04B7/00 , H04B1/02 , H04W72/00 , H04B1/38 , H04J1/16 , H04B7/185 , H04B7/216 , H04W4/00
CPC分类号： H04W4/06 , H04L12/189 , H04W52/08 , H04W52/322 , H04W52/327 , H04W52/54 , H04W72/005
摘要： A dynamic shared forward link channel (or “data” channel) is used to send multicast data to a group of wireless devices, e.g., using a common long code mask for the data channel. Reference power control (PC) bits are also sent on the data channel and used for signal quality estimation. A shared forward link control channel is used to send user-specific signaling to individual wireless devices, e.g., using time division multiplexing (TDM) and a unique long code mask for each wireless device. A shared forward link indicator channel is used to send reverse link (RL) PC bits to the wireless devices, e.g., using TDM. The data channel is jointly power controlled by all wireless devices receiving the data channel. The control and indicator channels are individually power controlled by each wireless device such that the signaling and RL PC bits sent on these channels for the wireless device are reliably received.
摘要翻译：使用动态共享前向链路信道（或“数据”信道）将组播数据发送到一组无线设备，例如使用用于数据信道的公共长码掩码。参考功率控制（PC）位也在数据通道上发送并用于信号质量估计。共享的前向链路控制信道用于向各个无线设备发送用户特定的信令，例如对于每个无线设备使用时分多路复用（TDM）和唯一的长码掩码。共享的前向链路指示符信道用于向无线设备发送反向链路（RL）PC比特，例如使用TDM。数据通道由接收数据通道的所有无线设备共同供电控制。控制和指示器通道由每个无线设备单独进行功率控制，使得在这些信道上为无线设备发送的信令和RL PC位被可靠地接收。

33. 发明授权

US08438447B2 Method and apparatus for time efficient retransmission using symbol accumulation 有权
标题翻译：使用符号累加的时间有效重传的方法和装置
公开(公告)号：US08438447B2
公开(公告)日：2013-05-07
申请号：US13364938
申请日：2012-02-02
申请人： Tao Chen , Joseph P. Odenwalder , Edward G. Tiedemann, Jr. , Serge Willenegger
发明人： Tao Chen , Joseph P. Odenwalder , Edward G. Tiedemann, Jr. , Serge Willenegger
IPC分类号： H03M13/00 , H03M13/03 , H04L1/18 , H04L1/14
CPC分类号： H04L1/0059 , H04L1/0001 , H04L1/0002 , H04L1/0009 , H04L1/0026 , H04L1/0054 , H04L1/0068 , H04L1/0069 , H04L1/0071 , H04L1/08 , H04L1/1809 , H04L1/1816 , H04L1/1819 , H04L1/1825 , H04L1/1845 , H04L1/1867 , H04L1/1893 , H04W52/44
摘要： An encoder receives an input bit stream and generates, based on the input bit stream, a first output bit stream based on at least a first polynomial and a second output bit stream based on at least a second polynomial. The first and second polynomials are each different from each other. The encoder forms a first packet of code symbols, having a first code rate, based on bits from the first output bit stream. A transmitter transmits the first packet. A receiver receives a first negative acknowledgment indicating unsuccessful decoding of the first packet after transmitting of the first packet. The encoder punctures bits from the second output bit stream and forms a second packet of code symbols having a second code rate. The second code rate is different from the first code rate. The transmitter transmits the second packet in response to the receiver receiving the first negative acknowledgment.
摘要翻译：编码器接收输入比特流，并且基于输入比特流，基于至少第二多项式，基于至少第一多项式和第二输出比特流来生成第一输出比特流。第一和第二多项式各自彼此不同。所述编码器基于来自所述第一输出比特流的比特来形成具有第一码率的码符号的第一分组。发射机发送第一个分组。接收器在发送第一分组之后接收指示第一分组的不成功解码的第一否定确认。编码器从第二输出比特流中删除比特，并形成具有第二码率的码元的第二分组。第二码率与第一码率不同。响应于接收机接收到第一否定确认，发射机发送第二分组。

34. 发明授权

US07986749B2 Method and apparatus for performing fast power control in a mobile communication system 有权
标题翻译：用于在移动通信系统中执行快速功率控制的方法和装置
公开(公告)号：US07986749B2
公开(公告)日：2011-07-26
申请号：US11312192
申请日：2005-12-19
申请人： Edward G. Tiedemann, Jr. , Tao Chen
发明人： Edward G. Tiedemann, Jr. , Tao Chen
IPC分类号： H04K1/02 , H04L25/03 , H04L25/49
CPC分类号： H04W52/267 , H04W52/08 , H04W52/24 , H04W52/282 , H04W52/362
摘要： A method and apparatus for controlling transmission power in a mobile communication system is disclosed. The method disclosed provides for a closed-loop power control method for variable rate transmissions. The power of transmissions is varied in accordance with the rate of the frames of data being transmitted. The transmission power between the rates can be a fixed or variable difference.
摘要翻译：公开了一种用于控制移动通信系统中的发射功率的方法和装置。所公开的方法提供了用于可变速率传输的闭环功率控制方法。传输的功率根据正在发送的数据帧的速率而变化。速率之间的传输功率可以是固定的或可变的差。

35. 发明授权

US07937086B2 Method and system for a handoff in a broadcast communication system 有权
标题翻译：广播通信系统中切换的方法和系统
公开(公告)号：US07937086B2
公开(公告)日：2011-05-03
申请号：US11688821
申请日：2007-03-20
申请人： Tao Chen , Jun Wang , Ragulan Sinnarajah , Brian K. Butler , Edward G. Tiedemann, Jr.
发明人： Tao Chen , Jun Wang , Ragulan Sinnarajah , Brian K. Butler , Edward G. Tiedemann, Jr.
IPC分类号： H04W36/00
CPC分类号： H04W36/0027 , H04W4/06 , H04W36/08 , H04W36/18 , H04W36/30 , H04W36/36 , H04W72/005
摘要： A method and system for a handoff in a broadcast communication system is disclosed. A subscriber assisted handoff is impractical in a broadcast communication system due to e.g., a high signaling load, a difficulty to synchronize the broadcast transmission. On the other hand, the small number of broadcast channels enables the subscriber station to perform the handoff autonomously. To streamline the autonomous handoff decision process, several distinct sets of pilot identifiers and rules for transitioning among the sets are defined. To fully integrate broadcast services with the services provided by the cellular telephone systems in a subscriber environment, a method for various handoff scenarios are analyzed.
摘要翻译：公开了广播通信系统中切换的方法和系统。由于例如高信令负载，难以同步广播传输，用户辅助切换在广播通信系统中是不切实际的。另一方面，少量的广播信道使得用户台能够自主地进行切换。为了简化自主切换决策过程，定义了几组不同的导频标识符和用于组间转换的规则。为了将广播服务与蜂窝电话系统在用户环境中提供的服务完全集成，分析了各种切换场景的方法。

36. 发明申请

US20090083602A1 OPERATION OF A FORWARD LINK ACKNOWLEDGEMENT CHANNEL FOR THE REVERSE LINK DATA 审中-公开
标题翻译：用于反向链路数据的前向链路确认信道的操作
公开(公告)号：US20090083602A1
公开(公告)日：2009-03-26
申请号：US12250324
申请日：2008-10-13
申请人： Sandip Sarkar , Tao Chen , Edward G. Tiedemann, JR. , Peter Gaal
发明人： Sandip Sarkar , Tao Chen , Edward G. Tiedemann, JR. , Peter Gaal
IPC分类号： H04L1/18
CPC分类号： H04L1/1812 , H04B17/24 , H04B17/309 , H04J13/0048 , H04L1/0026 , H04L1/0034 , H04L1/0057 , H04L1/0073 , H04L1/08 , H04L1/1607 , H04L1/1671 , H04L1/1825 , H04L1/1845 , H04L1/1854 , H04L1/1858 , H04L2001/0093 , H04L2001/125 , H04W52/48
摘要： An acknowledgement method in a wireless communication system. Initially, a reverse supplemental channel (R-SCH) frame is received at a base station. The base station then transmits an acknowledgement (ACK) signal if quality of the received R-SCH frame is indicated as being good. A negative acknowledgement (NAK) signal is transmitted only if the received data frame is indicated as being bad but has enough energy such that, if combined with energy from retransmission of the data frame, it would be sufficient to permit correct decoding of the data frame. If the best base station is known, the acknowledgement method may reverse the transmission of the acknowledgement signals for the best base station so that only NAK signal is sent. A positive acknowledgement is assumed in the absence of an acknowledgement. This is done to minimize the transmit power requirements.
摘要翻译：无线通信系统中的确认方法。最初，在基站接收到反向补充信道（R-SCH）帧。然后，如果接收的R-SCH帧的质量被表示为良好，则基站然后发送确认（ACK）信号。仅当所接收的数据帧被表示为坏但具有足够的能量使得如果与来自数据帧的重传的能量相结合时才允许数据帧的正确解码就足够了，才发送否定确认（NAK）信号。如果最好的基站是已知的，则确认方法可以反转用于最佳基站的确认信号的发送，从而仅发送NAK信号。在没有确认的情况下假设肯定确认。这样做是为了尽量减少发射功率的要求。

37. 发明授权

US07437648B2 Operation of a forward link acknowledgement channel for the reverse link data 有权
标题翻译：用于反向链路数据的前向链路确认信道的操作
公开(公告)号：US07437648B2
公开(公告)日：2008-10-14
申请号：US11349366
申请日：2006-02-06
申请人： Sandip Sarkar , Tao Chen , Edward G. Tiedemann, Jr. , Peter Gaal
发明人： Sandip Sarkar , Tao Chen , Edward G. Tiedemann, Jr. , Peter Gaal
IPC分类号： H04L1/18
CPC分类号： H04L1/1812 , H04B17/24 , H04B17/309 , H04J13/0048 , H04L1/0026 , H04L1/0034 , H04L1/0057 , H04L1/0073 , H04L1/08 , H04L1/1607 , H04L1/1671 , H04L1/1825 , H04L1/1845 , H04L1/1854 , H04L1/1858 , H04L2001/0093 , H04L2001/125 , H04W52/48
摘要： An acknowledgement method in a wireless communication system. Initially, a reverse supplemental channel (R-SCH) frame is received at a base station. The base station then transmits an acknowledgement (ACK) signal if quality of the received R-SCH frame is indicated as being good. A negative acknowledgement (NAK) signal is transmitted only if the received data frame is indicated as being bad but has enough energy such that, if combined with energy from retransmission of the data frame, it would be sufficient to permit correct decoding of the data frame. If the best base station is known, the acknowledgement method may reverse the transmission of the acknowledgement signals for the best base station so that only NAK signal is sent. A positive acknowledgement is assumed in the absence of an acknowledgement. This is done to minimize the transmit power requirements.
摘要翻译：无线通信系统中的确认方法。最初，在基站接收到反向补充信道（R-SCH）帧。然后，如果接收的R-SCH帧的质量被表示为良好，则基站然后发送确认（ACK）信号。仅当所接收的数据帧被表示为坏但具有足够的能量使得如果与来自数据帧的重传的能量相结合时才允许数据帧的正确解码就足够了，才发送否定确认（NAK）信号。如果最好的基站是已知的，则确认方法可以反转用于最佳基站的确认信号的发送，从而仅发送NAK信号。在没有确认的情况下假设肯定确认。这样做是为了尽量减少发射功率的要求。

38. 发明授权

US07254394B2 Method and system for a handoff in a broadcast communication system 有权
标题翻译：广播通信系统中切换的方法和系统
公开(公告)号：US07254394B2
公开(公告)日：2007-08-07
申请号：US10801221
申请日：2004-03-15
申请人： Tao Chen , Jun Wang , Ragulan Sinnarajah , Brian K. Butler , Edward G. Tiedemann, Jr.
发明人： Tao Chen , Jun Wang , Ragulan Sinnarajah , Brian K. Butler , Edward G. Tiedemann, Jr.
IPC分类号： H04Q7/20
CPC分类号： H04W36/0027 , H04W4/06 , H04W36/08 , H04W36/18 , H04W36/30 , H04W36/36 , H04W72/005
摘要： A method and system for a handoff in a broadcast communication system is disclosed. A subscriber assisted handoff is impractical in a broadcast communication system due to e.g., a high signaling load, a difficulty to synchronize the broadcast transmission. On the other hand, the small number of broadcast channels enables the subscriber station to perform the handoff autonomously. To streamline the autonomous handoff decision process, several distinct sets of pilot identifiers and rules for transitioning among the sets are defined. To fully integrate broadcast services with the services provided by the cellular telephone systems in a subscriber environment, a methods for various handoff scenarios are analyzed.
摘要翻译：公开了广播通信系统中切换的方法和系统。由于例如高信令负载，难以同步广播传输，用户辅助切换在广播通信系统中是不切实际的。另一方面，少量的广播信道使得用户台能够自主地进行切换。为了简化自主切换决策过程，定义了几组不同的导频标识符和用于组间转换的规则。为了将广播服务与蜂窝电话系统在用户环境中提供的服务完全整合，分析了各种切换场景的方法。

39. 发明授权

US07155249B2 Modified power control for hybrid ARQ on the reverse link 有权
标题翻译：混合ARQ在反向链路上修改功率控制
公开(公告)号：US07155249B2
公开(公告)日：2006-12-26
申请号：US10341319
申请日：2003-01-10
申请人： Sandip Sarkar , Tao Chen , Edward G. Tiedemann, Jr.
发明人： Sandip Sarkar , Tao Chen , Edward G. Tiedemann, Jr.
IPC分类号： H04B7/00
CPC分类号： H04W52/50 , H04W52/40 , H04W52/48
摘要： A method for power control in a wireless communication system. An initial transmission of a data frame in the reverse link is received, and a first energy level of the data frame is measured. An energy deficit in the first energy level is then measured if the first energy level is insufficient to correctly decode the data frame, so that when the data frame is retransmitted with a second energy level equal to a difference between the first energy level and the energy deficit, the data frame can be correctly decoded with combined energy of the first energy level and the second energy level.
摘要翻译：一种用于无线通信系统中功率控制的方法。接收反向链路中的数据帧的初始传输，并且测量数据帧的第一能级。如果第一能级不足以正确地解码数据帧，则测量第一能级中的能量缺失，以便当数据帧以等于第一能量级与能量之间的差的第二能级重发时可以用第一能级和第二能量级的组合能量正确解码数据帧。

40. 发明授权

US07106791B2 Method and apparatus for monitoring transmission quality 有权
公开(公告)号：US07106791B2
公开(公告)日：2006-09-12
申请号：US11217948
申请日：2005-08-31
申请人： Tao Chen , Fuyun Ling , Edward G. Tiedemann, Jr.
发明人： Tao Chen , Fuyun Ling , Edward G. Tiedemann, Jr.
IPC分类号： H04L1/20
CPC分类号： H04B17/327 , H04B17/309
摘要： In wireless communications, it is necessary to monitor the transmission quality of communications channels to maintain system performance and operation. The invention provides a way of measuring bit error rates in channels at the receiver, without diminishing channel throughput by inserting quality monitoring data into the signal at the transmitter.

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