公开(公告)号：US20060136790A1

公开(公告)日：2006-06-22

申请号：US11020583

申请日：2004-12-22

申请人： David Julian ,  Avneesh Agrawal ,  Edward Teague

发明人： David Julian ,  Avneesh Agrawal ,  Edward Teague

IPC分类号： G06F11/00

CPC分类号： H04L1/1867 ,  H04L1/1819 ,  H04L1/20

摘要： Method and apparatus for transmission of information in multiple access communication system is claim. Information using incremental redundancy is transmitted. A determination is made as to whether reverse link performance drops below a predetermined threshold. Determination of reverse link performance may be done in variety of ways, including use of a filter percentage of ACK erasures, measured error rates on the reverse link control channel, reverse link data channel error rates, and other methods. Upon determination of channel degradation, the access point can decide whether to ignore messages sent from the access terminal to instruct the access terminal to cease transmission.

摘要翻译： 一种用于在多址通信系统中传输信息的方法和装置。 发送使用增量冗余的信息。 确定反向链路性能是否下降到预定阈值以下。 反向链路性能的确定可以以各种方式进行，包括使用ACK擦除的滤波器百分比，反向链路控制信道上的测量误码率，反向链路数据信道错误率等方法。 在确定信道劣化时，接入点可以决定是否忽略从接入终端发送的消息，指示接入终端停止发送。

公开(公告)号：US20060135162A1

公开(公告)日：2006-06-22

申请号：US11020716

申请日：2004-12-22

申请人： David Julian ,  Avneesh Agrawal ,  Arak Sutivong ,  Edward Teague

发明人： David Julian ,  Avneesh Agrawal ,  Arak Sutivong ,  Edward Teague

IPC分类号： H04Q7/20

CPC分类号： H04W36/06

摘要： The disclosed embodiments provide for methods and systems for selecting sectors for handoff in a communication system. According to one aspect, the method includes monitoring an indicia of transmit power on a plurality of RL control channels directed to a plurality of sectors, and selecting one of the sectors as a candidate for a RL handoff. The disclosed embodiments also provide for methods and systems for indicating a selected serving sector for handoff in a communication system. According to one aspect, the method includes sending a first signal to a first sector to indicate the first sector as a serving sector for a forward-link handoff, and sending a second signal to a second sector to indicate the second sector as a serving sector for a reverse-link handoff.

摘要翻译： 所公开的实施例提供了用于在通信系统中选择用于切换的扇区的方法和系统。 根据一个方面，所述方法包括：监视指向多个扇区的多个RL控制信道上的发射功率的标记，以及选择所述扇区之一作为用于RL切换的候选。 所公开的实施例还提供了用于在通信系统中指示用于切换的所选择的服务扇区的方法和系统。 根据一个方面，所述方法包括向第一扇区发送第一信号以将第一扇区指示为用于前向链路切换的服务扇区，以及向第二扇区发送第二信号以将第二扇区指示为服务扇区 用于反向链路切换。

公开(公告)号：US20060133273A1

公开(公告)日：2006-06-22

申请号：US11021790

申请日：2004-12-22

申请人： David Julian ,  Edward Teague

发明人： David Julian ,  Edward Teague

IPC分类号： H04L12/26 ,  H04J3/02

CPC分类号： H04W52/28 ,  H04L1/1671 ,  H04L1/1819 ,  H04L1/1825 ,  H04L1/1854 ,  H04L47/323

摘要： Method and apparatus for transmission of information in multiple access communication system is described. Information from a plurality of access terminals is received. Alternatively, an access terminal determines what information needs to be sent to the access point. A determination is made as to whether sufficient resources, such as time, power level, or channels, are available to send an indication of acknowledgment. If sufficient resources are not available at the given time, the transmission of an indication of acknowledgment is delayed until sufficient resources are available.

摘要翻译： 描述了用于在多址通信系统中传输信息的方法和装置。 接收来自多个接入终端的信息。 或者，接入终端确定需要将哪些信息发送到接入点。 确定足够的资源，例如时间，功率电平或信道是否可用于发送确认指示。 如果在给定时间内没有足够的资源可用，延迟确认指示的传输，直到有足够的资源可用。

公开(公告)号：US20060083183A1

公开(公告)日：2006-04-20

申请号：US10969117

申请日：2004-10-20

申请人： Edward Teague ,  David Julian

发明人： Edward Teague ,  David Julian

IPC分类号： H04B7/005 ,  H04Q7/00

CPC分类号： H04L1/1692 ,  H04L1/1829

摘要： To transmit signaling, a base station obtains signaling (e.g., ACKs) for a group of channels used for data transmission and selected from a set of channels having constraints on usage. The base station compresses the signaling based on the channel constraints and obtains at least one message. If multiple messages are to be sent, then the assigned channels are partitioned into multiple subgroups, and the signaling for the channels in each subgroup is compressed to obtain a message for that subgroup. Each message is encoded at a spectral efficiency and transmitted at a power level selected for the message. A CRC value is appended to the message(s) for error detection. To receive the signaling, a terminal checks a received message with the appended CRC, decodes the message if the CRC passes, decompresses the decoded message based on the channel constraints, and extracts the signaling for an assigned channel.

摘要翻译： 为了发送信令，基站获得用于数据传输的一组信道的信令（例如，ACK），并从具有使用限制的一组信道中选择信令。 基站基于信道约束来压缩信令，并获得至少一个消息。 如果要发送多个消息，则将分配的信道划分为多个子组，并且对每个子组中的信道的信令进行压缩以获得该子组的消息。 每个消息以频谱效率编码，并以为消息选择的功率电平进行发送。 将CRC值附加到消息以进行错误检测。 为了接收信令，终端用附加的CRC检查接收到的消息，如果CRC通过则对消息进行解码，基于信道约束对解码的消息进行解压缩，并提取所分配的信道的信令。

公开(公告)号：US20060019694A1

公开(公告)日：2006-01-26

申请号：US10897463

申请日：2004-07-22

申请人： Arak Sutivong ,  Awneesh Agrawal ,  David Julian

发明人： Arak Sutivong ,  Awneesh Agrawal ,  David Julian

IPC分类号： H04Q7/20

CPC分类号： H04W52/247 ,  H04B17/309 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/20 ,  H04W24/00 ,  H04W52/125 ,  H04W52/146 ,  H04W52/16 ,  H04W52/20 ,  H04W52/24 ,  H04W52/241 ,  H04W52/242 ,  H04W52/243 ,  H04W52/283 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/54 ,  H04W52/60 ,  H04W88/08

摘要： Techniques for adjusting transmit power to mitigate both intra-sector interference to a serving base station and inter-sector interference to neighbor base stations are described. The amount of inter-sector interference that a terminal may cause may be roughly estimated based on the total interference observed by each neighbor base station, channel gains for the serving and neighbor base stations, and the current transmit power level. The transmit power may be decreased if high interference is observed by a neighbor base station and increased otherwise. The transmit power may be adjusted by a larger amount and/or more frequently if the terminal is located closer to the neighbor base station observing high interference and/or if the current transmit power level is higher, and vice versa. The intra-sector interference is maintained within an acceptable level by limiting a received SNR for the terminal to be within a range of allowable SNRs.

公开(公告)号：US20050283687A1

公开(公告)日：2005-12-22

申请号：US11020708

申请日：2004-12-22

申请人： Arak Sutivong ,  Avneesh Agrawal ,  David Julian

发明人： Arak Sutivong ,  Avneesh Agrawal ,  David Julian

IPC分类号： H04B7/005 ,  H04L1/00 ,  H04L1/20 ,  G01R31/28 ,  H03M13/00

CPC分类号： H04L1/0045 ,  H04B17/309 ,  H04L1/0057 ,  H04L1/20 ,  H04W52/125 ,  H04W52/146 ,  H04W52/16 ,  H04W52/20 ,  H04W52/241 ,  H04W52/243 ,  H04W52/247 ,  H04W52/362 ,  H04W52/367 ,  H04W52/54

摘要： Techniques for performing erasure detection and power control for a transmission without error detection coding are described. For erasure detection, a transmitter transmits codewords via a wireless channel. A receiver computes a metric for each received codeword, compares the computed metric against an erasure threshold, and declares the received codeword to be “erased” or “non-erased”. The receiver dynamically adjusts the transmit power based on whether the codewords met the erasure threshold or not.

摘要翻译： 描述了用于对没有错误检测编码的传输进行擦除检测和功率控制的技术。 为了擦除检测，发射机经由无线信道发送码字。 接收机计算每个接收到的码字的度量，将所计算的度量与擦除阈值进行比较，并将接收的码字声明为“擦除”或“未擦除”。 接收机基于码字是否满足擦除阈值来动态调整发射功率。