Method and system for reduction of decoding complexity in a communication system
    91.
    发明授权
    Method and system for reduction of decoding complexity in a communication system 有权
    用于降低通信系统中的解码复杂度的方法和系统

    公开(公告)号:US08730999B2

    公开(公告)日:2014-05-20

    申请号:US12818946

    申请日:2010-06-18

    IPC分类号: H04J3/24

    摘要: Method and System for Utilization of an Outer Decoder in a Broadcast Services Communication System is described. Information to be transmitted is provided to a systematic portion of a plurality of transmit buffers and encoded by an outer decoder communicatively coupled to the transmit buffer. The resulting redundant bits are provided to a parity portion of each transmit buffer. The content of the transmit buffers, is multiplexed and encoded by an inner decoder to improve protection by adding redundancy. The receiving station recovers the transmitted information by an inverse process. Because a decoding complexity depends on the size of a systematic portion of the transmit buffer, reasoned compromise between a systematic portion size and number of transmit buffers yields decreased decoding complexity.

    摘要翻译: 描述了在广播服务通信系统中利用外部解码器的方法和系统。 要发送的信息被提供给多个发送缓冲器的系统部分,并且由通信地耦合到发送缓冲器的外部解码器编码。 所产生的冗余比特被提供给每个发送缓冲器的奇偶校验部分。 发送缓冲器的内容被内部解码器复用和编码,以通过增加冗余来改善保护。 接收站通过反向处理恢复发送的信息。 由于解码复杂度取决于发射缓冲器的系统部分的大小,系统部分大小与发射缓冲器数量之间的合理折中产生降低的解码复杂度。

    Connected-state radio session transfer in wireless communication systems
    92.
    发明授权
    Connected-state radio session transfer in wireless communication systems 有权
    无线通信系统中的连接状态无线电会话传输

    公开(公告)号:US08515424B2

    公开(公告)日:2013-08-20

    申请号:US11123658

    申请日:2005-05-06

    IPC分类号: H04W36/00

    摘要: Embodiments described herein relate to connected-state radio session transfer in wireless communications. A source access network controller may lock a source radio session associated with an access terminal (e.g., in response to detecting a handoff condition associated with the access terminal), where the source access network controller may be in communication with a data network. The source access network controller may also instruct a target access network controller to create a target radio session corresponding with the source radio session, and to establish a communication route between the data network and the access network via the target ANC. The source access network controller may then freeze a state associated with the source radio session and transmits the frozen state to the target access network controller. The target access network controller may subsequently unfreeze the received state and further unlock the radio session, hence resuming control of the access terminal.

    摘要翻译: 本文描述的实施例涉及无线通信中的连接状态无线电会话传送。 源接入网络控制器可以锁定与接入终端相关联的源无线电会话(例如,响应于检测到与接入终端相关联的切换条件),其中源接入网络控制器可以与数据网络通信。 源接入网络控制器还可以指示目标接入网络控制器创建与源无线电会话相对应的目标无线电会话,并且经由目标ANC在数据网络和接入网络之间建立通信路由。 然后,源接入网络控制器可以冻结与源无线电会话相关联的状态,并将冻结状态发送到目标接入网络控制器。 目标接入网络控制器可以随后解冻接收到的状态并进一步解锁无线电会话,从而恢复接入终端的控制。

    Method and apparatus for forwarding messages among multiple radio networks
    95.
    发明授权
    Method and apparatus for forwarding messages among multiple radio networks 有权
    在多个无线电网络之间转发消息的方法和装置

    公开(公告)号:US08139545B2

    公开(公告)日:2012-03-20

    申请号:US11263892

    申请日:2005-10-31

    IPC分类号: H04B7/216 H04Q7/20

    CPC分类号: H04W88/184

    摘要: Techniques to forward unsolicited messages from an (IS-2000) CDMA radio network via an HDR radio network to an access terminal. A session is first established between the access terminal and the HDR radio network. During session establishment or thereafter, the access terminal indicates to the HDR radio network an interest in receiving unsolicited messages from the CDMA radio network. The access terminal typically also registers with the CDMA radio network. Thereafter, unsolicited messages can be sent from a mobile station controller (MSC) to the HDR and CDMA radio networks, or sent from the MSC to the CDMA radio network, which then forwards the messages to the HDR radio network. The HDR radio network encapsulates the unsolicited messages and sends the encapsulated messages to the access terminal. The forwarding of unsolicited messages allows the CDMA radio network to communicate with an access terminal.

    摘要翻译: 将来自(IS-2000)CDMA无线电网络的未经请求的消息经由HDR无线电网络转发到接入终端的技术。 首先在接入终端和HDR无线网络之间建立会话。 在会话建立或此后,接入终端向HDR无线电网络指示从CDMA无线电网络接收未经请求的消息的兴趣。 接入终端通常还向CDMA无线电网络注册。 此后,非请求消息可以从移动台控制器(MSC)发送到HDR和CDMA无线电网络,或者从MSC发送到CDMA无线电网络,然后CDMA无线电网络将消息转发到HDR无线电网络。 HDR无线电网络封装未经请求的消息,并将封装的消息发送到接入终端。 非请求消息的转发允许CDMA无线电网络与接入终端进行通信。

    Method and apparatus for canceling pilot interference in a CDMA communication system
    97.
    发明授权
    Method and apparatus for canceling pilot interference in a CDMA communication system 有权
    用于在CDMA通信系统中消除导频干扰的方法和装置

    公开(公告)号:US06680727B2

    公开(公告)日:2004-01-20

    申请号:US09966256

    申请日:2001-09-27

    IPC分类号: H04B1500

    CPC分类号: H04B1/7107

    摘要: Techniques for canceling pilot interference in a wireless (e.g., CDMA) communication system. A received signal typically includes a number of signal instances (i.e., multipaths). For each multipath desired to be processed, the other multipaths act as interference on the desired multipath. If the pilot is generated based on a known data pattern (e.g., all zeros) and covered with a known channelization code (e.g., a Walsh code of zero), then the pilot in an interfering multipath may be estimated as the spreading sequence at a time offset corresponding to the arrival time of that multipath. The pilot interference from each interference multipath may be estimated based on the spreading sequence for the interfering multipath and the despreading sequence for the desired multipath. The total pilot interference from a number of interfering multipaths may be subtracted from the data component in the desired multipath to provide pilot-canceled data having improved performance.

    摘要翻译: 用于在无线(例如CDMA)通信系统中消除导频干扰的技术。 接收到的信号通常包括多个信号实例(即,多路径)。 对于希望被处理的每个多路径,其他多路径用作所需多路径上的干扰。 如果基于已知数据模式(例如,全零)并且用已知的信道化码(例如,沃尔什码为零)来覆盖导频,则干扰多径中的导频可以被估计为在 对应于该多径的到达时间的时间偏移。 来自每个干扰多路径的导频干扰可以基于干扰多路径的扩展序列和所需多径的解扩序列来估计。 来自多个干扰多径的总导频干扰可以从期望的多路径中的数据分量中减去,以提供具有改进性能的导频取消数据。

    System and method for using an IP address as a wireless unit identifier
    98.
    发明授权
    System and method for using an IP address as a wireless unit identifier 有权
    使用IP地址作为无线单元标识符的系统和方法

    公开(公告)号:US06671735B1

    公开(公告)日:2003-12-30

    申请号:US09494204

    申请日:2000-01-28

    申请人: Paul E. Bender

    发明人: Paul E. Bender

    IPC分类号: G06F15173

    摘要: A first network access point receives a first wireless link message from a first user terminal. The first wireless link message identifies the first user terminal. The first network access point or other system entity assigns an IP address to the first user terminal for use as a temporary mobile station identifier. The first network access point or other system entity installs a route for the IP address to a controller. The first network access point forwards a wireless link message to the user terminal specifying the IP address. The first or a second network access point receives another wireless link message from the first user terminal in which the first user terminal is identified with the IP address. The first or second network access point parses the message to determine the IP address and creates at least one standard IP packet designating the IP address specified in the message. The first or second network access point forwards the message to a router which routes the packet according to the IP address.

    摘要翻译: 第一网络接入点从第一用户终端接收第一无线链路消息。 第一无线链路消息标识第一用户终端。 第一网络接入点或其他系统实体向第一用户终端分配IP地址以用作临时移动台标识符。 第一个网络接入点或其他系统实体为控制器安装IP地址的路由。 第一个网络接入点将无线链路消息转发给指定IP地址的用户终端。 第一或第二网络接入点从第一用户终端接收另一无线链路消息,其中第一用户终端用IP地址识别。 第一或第二网络接入点解析消息以确定IP地址,并创建指定消息中指定的IP地址的至少一个标准IP分组。 第一或第二网络接入点将消息转发到根据IP地址路由数据包的路由器。

    Forward power gain adjustment during a soft handoff operation
    99.
    发明授权
    Forward power gain adjustment during a soft handoff operation 有权
    在软切换操作期间进行正向功率增益调整

    公开(公告)号:US06253085B1

    公开(公告)日:2001-06-26

    申请号:US09321349

    申请日:1999-05-27

    申请人: Paul E. Bender

    发明人: Paul E. Bender

    IPC分类号: H04Q720

    摘要: Forward power control for a mobile communication system is provided on a frame by frame basis during a soft handoff of a mobile station from a source base station to a target base station. Each base station runs independent but identical algorithms. A selector runs the same power control algorithm as each base station and coordinates power control between the two base stations and the mobile station during the soft hand-off. The results of the algorithm run by the selector are delayed because of back haul. The selector provides the base stations with traffic gain and frame delay information corresponding to the traffic gain. The base station ASIC, modifies the base station power output according to the SNR data received from the mobile station and the traffic gain and frame delay information received from the selector. Providing the frame delay information permits forward power control even when there is delay from when the selector computes the traffic gain and the traffic gain is programmed into the base station application specific integrated circuit.

    摘要翻译: 在移动站从源基站到目标基站的软切换期间,逐帧地提供用于移动通信系统的前向功率控制。 每个基站运行独立但相同的算法。 选择器运行与每个基站相同的功率控制算法,并且在软切换期间协调两个基站和移动台之间的功率控制。 由于选择器运行的算法的结果因后退而被延迟。 选择器为基站提供对应于业务增益的业务增益和帧延迟信息。 基站ASIC根据从移动站接收的SNR数据和从选择器接收到的业务增益和帧延迟信息修改基站功率输出。 提供帧延迟信息即使当从选择器计算业务增益并且业务增益被编程到基站专用集成电路中时有延迟,也允许正向功率控制。