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51. 发明授权

US06771700B1 Method and apparatus for minimizing total transmission energy in a communication system employing retransmission of frame received in error 有权
标题翻译：在使用错误接收的帧的重传的通信系统中最小化总传输能量的方法和装置
公开(公告)号：US06771700B1
公开(公告)日：2004-08-03
申请号：US09426016
申请日：1999-10-22
申请人： Leonid Razoumov , Jack Holtzman , Stein A. Lundby
发明人： Leonid Razoumov , Jack Holtzman , Stein A. Lundby
IPC分类号： H04B345
CPC分类号： H04L1/1816 , H04L1/0026 , H04L1/1607 , H04L1/1825 , H04L1/1867 , H04W52/20 , H04W52/50
摘要： Method and apparatus for transmitting a signal at a predetermined level of reliability using retransmission of erroneously transmitted frames so as to minimize total transmission energy. The transmitting station evaluates the frame error rate (FER) as a function of energy. Next, the transmitting station determines a combination of initial transmission energies and retransmission energies that will provide the target level of reliability while minimizing the total transmission energy employed in the initial transmission and the retransmissions. The transmitting station transmits a frame with an initial transmission energy. Employing conventional feedback methods the transmitting station is alerted to the occurrence of frame errors at the receiving station. The transmitting station upon notification of a frame error retransmits the frame with an energy determined to minimize the total energy required to transmit the frame with a predetermined level of reliability.
摘要翻译：用于通过重发错误发送的帧来以预定的可靠性水平发送信号的方法和装置，以便最小化总传输能量。发送站评估作为能量的函数的帧错误率（FER）。接下来，发射站确定将提供目标可靠性水平的初始发射能量和重发能量的组合，同时最小化在初始传输和重传中使用的总传输能量。发送站发送具有初始发送能量的帧。采用传统的反馈方法，发送站在接收站发出帧错误。在通知帧错误时，发送站以所确定的能量重新发送帧，以最小化以预定的可靠性水平发送帧所需的总能量。

52. 发明授权

US06618453B1 Estimating interference in a communication system 有权
标题翻译：估计通信系统中的干扰
公开(公告)号：US06618453B1
公开(公告)日：2003-09-09
申请号：US09377796
申请日：1999-08-20
申请人： Stein A. Lundby
发明人： Stein A. Lundby
IPC分类号： H04B1500
CPC分类号： H04B1/1027 , H04B17/309
摘要： A method and apparatus for improving the transmission of an information signal having message information. A received information signal is formed from an information signal transmitted through an information channel. The received information signal has signal noise. The message information is removed from the received information signal to provide a symbol sequence that is then applied to a first filter to provide a first filtered signal. The power of the first filtered signal is determined and applied to a second filter to provide a second filtered signal representative of the signal noise of the received information signal.
摘要翻译：一种用于改善具有消息信息的信息信号的传输的方法和装置。从通过信息信道发送的信息信号形成接收信息信号。所接收的信息信号具有信号噪声。从所接收的信息信号中消除消息信息，以提供符号序列，然后将其应用于第一滤波器以提供第一滤波信号。第一滤波信号的功率被确定并施加到第二滤波器以提供代表所接收的信息信号的信号噪声的第二滤波信号。

53. 发明授权

US08340587B2 Channel quality feedback mechanism and method 有权
公开(公告)号：US08340587B2
公开(公告)日：2012-12-25
申请号：US12489139
申请日：2009-06-22
申请人： Peter Gaal , Joseph P. Odenwalder , Stein A. Lundby , David Puig Oses
发明人： Peter Gaal , Joseph P. Odenwalder , Stein A. Lundby , David Puig Oses
IPC分类号： H04B17/00
CPC分类号： H04W72/08 , H04B17/24 , H04B17/309 , H04W52/146
摘要： Methods and apparatus are presented for improving the feedback of channel information to a serving base station, which allows a reduction in the reverse link load while allowing the base station to improve the forward link data throughput. Over a channel quality indicator channel, three subchannels are generated; the re-synch subchannel, the differential feedback subchannel, and the transition indicator subchannel. The information carried on each subchannel can be used separately or together by a base station to selectively update internal registers storing channel conditions. The channel conditions are used to determine transmission formats, power levels, and data rates of forward link transmissions.

54. 发明授权

US08285226B2 Steering diversity for an OFDM-based multi-antenna communication system 有权
标题翻译：基于OFDM的多天线通信系统的转向分集
公开(公告)号：US08285226B2
公开(公告)日：2012-10-09
申请号：US11066771
申请日：2005-02-24
申请人： Stein A. Lundby , Steven J. Howard , Jay Rodney Walton
发明人： Stein A. Lundby , Steven J. Howard , Jay Rodney Walton
IPC分类号： H03C7/02 , H04B1/02 , H04B7/02
CPC分类号： H04L27/2602
摘要： A transmitting entity uses different steering vectors for different subbands to achieve steering diversity. Each steering vector defines or forms a beam for an associated subband. Any steering vector may be used for steering diversity. The steering vectors may be defined such that the beams vary in a continuous instead of abrupt manner across the subbands. This may be achieved by applying continuously changing phase shifts across the subbands for each transmit antenna. As an example, the phase shifts may change in a linear manner across the subbands for each transmit antenna, and each antenna may be associated with a different phase slope. The application of linearly changing phase shifts to modulation symbols in the frequency domain may be achieved by either delaying or circularly shifting the corresponding time-domain samples.
摘要翻译：发射实体为不同的子带使用不同的导向矢量来实现转向分集。每个导向矢量定义或形成用于相关子带的波束。任何导向矢量都可用于转向分集。导向矢量可以被定义为使得光束在连续而不是突变的方式跨越子带而变化。这可以通过在每个发射天线的子带上应用不断变化的相移来实现。作为示例，相移可以在每个发射天线的子带上以线性方式改变，并且每个天线可以与不同的相位斜率相关联。线性变化相移到频域中的调制符号的应用可以通过延迟或循环移位对应的时域采样来实现。

55. 发明授权

US08098607B2 Efficient multi-cast broadcasting for packet data systems 有权
标题翻译：用于分组数据系统的高效多播广播
公开(公告)号：US08098607B2
公开(公告)日：2012-01-17
申请号：US10968520
申请日：2004-10-18
申请人： Stein A. Lundby
发明人： Stein A. Lundby
IPC分类号： H04W4/06 , H04H20/00 , H04L12/18
CPC分类号： H04W72/085 , H04L1/0003 , H04L1/0006 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L1/16 , H04L12/1836 , H04L12/1886 , H04L12/189 , H04L2001/0093 , H04W4/08 , H04W8/26 , H04W72/005 , H04W72/08
摘要： Methods and apparatus are presented for efficient broadcasting in wireless packet data systems. A single MAC_ID is used for broadcasting to a group of subscribers. By using the channel quality information of the group of subscribers, a base station determines the identity of the subscriber with the worst channel conditions. The timing and the transmission format of the multi-cast are then tailored so that the subscriber with the worst channel conditions is capable of recovering the transmission. If the timing and the transmission format is chosen in relation to subscriber with the worst channel conditions, it is probable that other subscribers will be able to recover the transmission as well. Hence, only a single MAC_ID need to be used to make a single broadcast, rather than sending multiple transmissions to multiple subscribers.
摘要翻译：提出了用于无线分组数据系统中的有效广播的方法和装置。单个MAC_ID用于广播给一组用户。通过使用用户组的信道质量信息，基站确定具有最差信道条件的用户的身份。然后定制多播的定时和传输格式，使具有最差信道条件的用户能够恢复传输。如果相对于具有最差信道条件的用户选择定时和传输格式，则其他用户很可能也能够恢复传输。因此，仅需要使用单个MAC_ID来进行单个广播，而不是向多个订户发送多个传输。

56. 发明授权

US07899485B2 Forward link power control of multiple data streams transmitted to a mobile station using a common power control channel 有权
标题翻译：使用公共功率控制信道向移动台发送的多个数据流的前向链路功率控制
公开(公告)号：US07899485B2
公开(公告)日：2011-03-01
申请号：US12712927
申请日：2010-02-25
申请人： Stein A. Lundby , Leonid Razoumov
发明人： Stein A. Lundby , Leonid Razoumov
IPC分类号： H04B7/00 , H04B1/04
CPC分类号： H04W52/40 , H04W52/08 , H04W52/143 , H04W52/20 , H04W52/24 , H04W52/248 , H04W52/54 , H04W52/58 , H04W52/60
摘要： A method and apparatus for controlling transmit power levels of a plurality of different data streams transmitted from at least one base station to a mobile station in a mobile radio communication system. The first and second data streams are transmitted from the base station and received at the mobile station. A stream of power control commands is formed at the mobile station in accordance with either the first or second received data stream. A power control signal is formed at the mobile station from the first stream of power control commands and transmitted to the base station. A received stream of power control commands is formed from the received power control signal at the base station, and the transmit power levels of the first and second data streams from the base station are controlled in accordance with the received stream of power control commands. Additional streams of power control commands can also be generated at the mobile station where one or both of the first and second data streams are simultaneously transmitted to the mobile station from further base stations, and these additional streams of power control commands can be interleaved to form an interleaved power control signal that is sent to all the base stations transmitting the first and second data streams to the mobile station and used for controlling the transmit power of the first and second data streams from such base stations.
摘要翻译：一种用于控制在移动无线电通信系统中从至少一个基站发送到移动台的多个不同数据流的发射功率电平的方法和装置。从基站发送第一和第二数据流，并在移动站接收。根据第一或第二接收数据流，在移动站处形成功率控制命令流。功率控制信号由移动站从第一功率控制命令流形成并发射到基站。接收到的功率控制命令流由基站处的接收功率控制信号形成，并且根据所接收的功率控制命令流来控制来自基站的第一和第二数据流的发射功率电平。附加的功率控制命令流也可以在移动站处产生，其中第一和第二数据流中的一个或两个从另外的基站同时发送到移动站，并且这些额外的功率控制命令流可以被交织以形成交织的功率控制信号，被发送到向基站发送第一和第二数据流的所有基站，并用于控制来自这些基站的第一和第二数据流的发射功率。

57. 发明申请

US20100159937A1 CHANNEL QUALITY FEEDBACK MECHANISM AND METHOD 有权
标题翻译：渠道质量反馈机制与方法
公开(公告)号：US20100159937A1
公开(公告)日：2010-06-24
申请号：US12489139
申请日：2009-06-22
申请人： Peter Gaal , Joseph P. Odenwalder , Stein A. Lundby , David Puig Oses
发明人： Peter Gaal , Joseph P. Odenwalder , Stein A. Lundby , David Puig Oses
IPC分类号： H04W72/12
CPC分类号： H04W72/08 , H04B17/24 , H04B17/309 , H04W52/146
摘要： Methods and apparatus are presented for improving the feedback of channel information to a serving base station, which allows a reduction in the reverse link load while allowing the base station to improve the forward link data throughput. Over a channel quality indicator channel, three subchannels are generated; the re-synch subchannel, the differential feedback subchannel, and the transition indicator subchannel. The information carried on each subchannel can be used separately or together by a base station to selectively update internal registers storing channel conditions. The channel conditions are used to determine transmission formats, power levels, and data rates of forward link transmissions.
摘要翻译：呈现用于改善向服务基站的信道信息的反馈的方法和装置，其允许减少反向链路负载，同时允许基站改善前向链路数据吞吐量。通过信道质量指示信道，产生三个子信道; 重新同步子信道，差分反馈子信道和转换指示符子信道。每个子信道上携带的信息可以由基站单独使用或一起用于选择性地更新存储信道条件的内部寄存器。信道条件用于确定前向链路传输的传输格式，功率级别和数据速率。

58. 发明授权

US07676724B2 Feedback for data transmissions 失效
标题翻译：数据传输反馈
公开(公告)号：US07676724B2
公开(公告)日：2010-03-09
申请号：US11562332
申请日：2006-11-21
申请人： Stein A. Lundby
发明人： Stein A. Lundby
IPC分类号： H04M1/14
CPC分类号： H04L1/0018 , H04L1/0002 , H04L1/1829 , H04L1/1858
摘要： Methods and apparatus are presented for dynamically controlling the re-transmission scheme of acknowledgment signals. A source transmits a first data packet over a slot s1. If channel conditions are favorable, source transmits a second data packet over slot s2, which precedes the reception of any acknowledgment signals. A destination receives first data packet over slot d1 and second data packet over slot d2. Destination decodes first data packet during slots d2 and d3, and second data packet over slots d3 and d4. Destination transmits an acknowledgment signal (ACK1) associated with first data packet during slot d4. Rather then transmitting the second ACK1 associated with first data packet over slot d5, destination preempts this slot with an acknowledgment signal ACK2, which is associated with second data packet transmitted by source. Hence, destination is configured to overwrite the repetition of a previous acknowledgment in order to transmit a new acknowledgment.
摘要翻译：提出了用于动态地控制确认信号的重传方案的方法和装置。源通过时隙s1发送第一数据分组。如果信道条件是有利的，则源在接收到任何确认信号之前的时隙s2发送第二数据分组。目的地通过时隙d1接收第一数据分组，并通过时隙d2接收第二数据分组。目的地在时隙d2和d3期间解码第一数据分组，并在时隙d3和d4上解码第二数据分组。目的地在时隙d4期间发送与第一数据分组相关联的确认信号（ACK1）。然后，通过时隙d5发送与第一数据分组相关联的第二ACK1，目的地利用与由源发送的第二数据分组相关联的确认信号ACK2抢占该时隙。因此，目的地被配置为覆盖先前确认的重复以便发送新的确认。

59. 发明授权

US07107069B2 Forward link power control of multiple data streams transmitted to a mobile station using a common power control channel 有权
公开(公告)号：US07107069B2
公开(公告)日：2006-09-12
申请号：US10738735
申请日：2003-12-16
申请人： Stein A. Lundby , Leonid Razoumov
发明人： Stein A. Lundby , Leonid Razoumov
IPC分类号： H04B7/00
CPC分类号： H04W52/40 , H04W52/08 , H04W52/143 , H04W52/20 , H04W52/24 , H04W52/248 , H04W52/54 , H04W52/58 , H04W52/60
摘要： A method and apparatus for controlling transmit power levels of a plurality of different data streams transmitted from at least one base station to a mobile station in a mobile radio communication system is described. A stream of power control commands is formed at the mobile station in accordance with either the first or second received data stream. A power control signal is formed at the mobile station from the first stream of power control commands and transmitted to the base station.

60. 发明授权

US07031740B2 Forward link power control of multiple data streams transmitted to a mobile station using a common power control channel 有权
公开(公告)号：US07031740B2
公开(公告)日：2006-04-18
申请号：US09824860
申请日：2001-04-02
申请人： Stein A. Lundby , Leonid Razoumov
发明人： Stein A. Lundby , Leonid Razoumov
IPC分类号： H04B7/00
CPC分类号： H04W52/40 , H04W52/08 , H04W52/143 , H04W52/20 , H04W52/24 , H04W52/248 , H04W52/54 , H04W52/58 , H04W52/60
摘要： A method and apparatus for controlling transmit power levels of a plurality of different data streams transmitted from at least one base station to a mobile station in a mobile radio communication system is described. A stream of power control commands is formed at the mobile station in accordance with either the first or second received data stream. A power control signal is formed at the mobile station from the first stream of power control commands and transmitted to the base station.

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