USE OF ORTHOGONAL OR NEAR ORTHOGONAL CODES IN REVERSE LINK
    44.
    发明申请
    USE OF ORTHOGONAL OR NEAR ORTHOGONAL CODES IN REVERSE LINK 审中-公开
    在反向链接中使用正交或邻近正交代码

    公开(公告)号:US20120320901A1

    公开(公告)日:2012-12-20

    申请号:US13600931

    申请日:2012-08-31

    Abstract: An apparatus and method for use with a shared access communication channel is disclosed. A wireless network device receives signals and recovers data from a first plurality of subscriber units and a second plurality of subscriber units in a time interval. Received signals from the first plurality of subscriber units are distinguishable by having unique pseudo noise (PN) sequence with respect to others of the first plurality of subscriber units. Received signals the second plurality of subscriber units are distinguishable by a unique orthogonal sequence with respect to others of the second plurality of subscriber units. Received signals are distinguished between the first and second plurality of subscriber units based on detection of an orthogonal sequence present only in the received signals from the second plurality of subscriber units.

    Abstract translation: 公开了一种与共享接入通信信道一起使用的装置和方法。 无线网络设备在时间间隔内接收来自第一多个用户单元和第二多个用户单元的信号并恢复数据。 通过相对于第一多个用户单元中的其他用户单元具有唯一的伪噪声(PN)序列来区分来自第一多个用户单元的接收信号。 接收信号,第二多个用户单元可通过相对于第二多个用户单元中的其他用户单元的唯一正交序列来区分。 基于仅在来自第二多个用户单元的接收信号中存在的正交序列的检测来区分第一和第二多个用户单元之间的接收信号。

    MAINTAINING A MAINTENANCE CHANNEL IN A REVERSE LINK OF A WIRELESS COMMUNICATIONS SYSTEM
    45.
    发明申请
    MAINTAINING A MAINTENANCE CHANNEL IN A REVERSE LINK OF A WIRELESS COMMUNICATIONS SYSTEM 有权
    维护无线通信系统反向链路中的维护通道

    公开(公告)号:US20120134341A1

    公开(公告)日:2012-05-31

    申请号:US13367093

    申请日:2012-02-06

    Abstract: In a reverse link of a wireless CDMA communication system, a method of maintaining an idling mode connection between a field unit and a base transceiver station is provided using various techniques to maintain the idle mode connection at a reduced power level. A preferred embodiment computes a time slot or frame offset based on modulo function using a field unit identifier in order to distribute field unit maintenance transmissions among available slots or offsets. An alternate embodiment detects explicit signaling states changes at the physical layer and causes power target changes. A further embodiment transmits maintenance data during predetermined time intervals, coordinated between the field units and BTS, allowing power levels to be adjusted accordingly.

    Abstract translation: 在无线CDMA通信系统的反向链路中,使用各种技术来提供在场单元和基站之间维持空闲模式连接的方法,以将空闲模式连接维持在降低的功率电平。 优选实施例使用字段单元标识符基于模函数计算时隙或帧偏移,以便在可用时隙或偏移之间分配现场单元维护传输。 替代实施例检测物理层处的显式信令状态改变并且引起功率目标改变。 另一实施例在预定的时间间隔内发送维护数据,在现场单元和BTS之间协调,从而允许相应地调整功率电平。

    MINIMAL MAINTENANCE LINK TO SUPPORT SYCHRONIZATION
    46.
    发明申请
    MINIMAL MAINTENANCE LINK TO SUPPORT SYCHRONIZATION 有权
    最小维护链接支持同步

    公开(公告)号:US20120093131A1

    公开(公告)日:2012-04-19

    申请号:US13335575

    申请日:2011-12-22

    CPC classification number: H04W56/0005 H04B7/2668 H04W56/0045 H04W56/005

    Abstract: A method for use in a field unit operable in a wireless communication network. The method includes receiving an indication of a plurality of access identifiers from a base station. The field unit selects an access identifier from the plurality of access identifiers received from the base station. The selected access identifier is associated with a type of field unit request. The field unit transmits the selected access identifier to the base station. The field unit then receives a message from the base station. The message is based on the transmitted selected access identifier. The message contains a timing adjustment that indicates an amount to advance timing. A corresponding field unit apparatus, a base station method, and corresponding base station apparatus is also disclosed.

    Abstract translation: 一种在无线通信网络中可操作的现场单元中使用的方法。 该方法包括从基站接收多个接入标识符的指示。 场单元从从基站接收的多个接入标识符中选择接入标识符。 所选择的访问标识符与一种字段单元请求相关联。 现场单元将所选择的接入标识符发送到基站。 然后,现场单元从基站接收消息。 消息基于发送的所选访问标识符。 该消息包含指示提前时间的量的时序调整。 还公开了相应的现场单元设备,基站方法和相应的基站设备。

    METHOD AND APPARATUS FOR ALLOWING SOFT HANDOFF OF A CDMA REVERSE LINK UTILIZING AN ORTHOGONAL CHANNEL STRUCTURE
    49.
    发明申请
    METHOD AND APPARATUS FOR ALLOWING SOFT HANDOFF OF A CDMA REVERSE LINK UTILIZING AN ORTHOGONAL CHANNEL STRUCTURE 有权
    允许使用正交通道结构的CDMA反向链路软转换的方法和装置

    公开(公告)号:US20110170467A1

    公开(公告)日:2011-07-14

    申请号:US13069174

    申请日:2011-03-22

    Abstract: Method and apparatus for base stations and subscriber units allows soft handoff of a CDMA reverse link utilizing an orthogonal channel structure. Subscriber units transmit an orthogonally coded signal over a reverse link to the base stations. A given base station provides timing control of the timing offset of the reverse link signal. Based on at least one criterion, an alignment controller determines that the given base station should hand off timing control to another base station, and a soft handoff process ensues. In response to a command or message for soft handoff of the subscriber unit from the given base station to another base station, the subscriber unit makes a coarse timing adjustment to the timing of the coded signal. The subscriber unit may make fine timing adjustments based on feedback from the base station controlling timing. Multiple base stations may provide power control feedback to the subscriber unit.

    Abstract translation: 用于基站和用户单元的方法和装置允许使用正交信道结构的CDMA反向链路的软切换。 订户单元通过反向链路向基站发送正交编码的信号。 给定基站提供反向链路信号的定时偏移的定时控制。 基于至少一个准则,对准控制器确定给定的基站应该将定时控制切换到另一个基站,并且随后进行软切换处理。 响应于用户单元从给定基站到另一个基站的软切换的命令或消息,用户单元对编码信号的定时进行粗略的定时调整。 用户单元可以基于来自基站控制定时的反馈来进行精确的定时调整。 多个基站可以向用户单元提供功率控制反馈。

    SYSTEM AND METHOD FOR COORDINATION OF WIRELESS MAINTENANCE CHANNEL POWER CONTROL
    50.
    发明申请
    SYSTEM AND METHOD FOR COORDINATION OF WIRELESS MAINTENANCE CHANNEL POWER CONTROL 审中-公开
    用于协调无线维护信道功率控制的系统和方法

    公开(公告)号:US20110044221A1

    公开(公告)日:2011-02-24

    申请号:US12938864

    申请日:2010-11-03

    Abstract: In a wireless communication system, wireless channels are maintained for communication between users and the base station. Often, a wireless user may be switched on, but not actively sending or receiving data. Accordingly, wireless users may be “active,” and currently allocated a wireless traffic channel for sending or receiving, or “idle,” and not currently sending or receiving. A wireless user may be maintained in an idle state through a periodic sequence of synchronization messages. A method for controlling a power level of a wireless message includes determining the presence of data to be transmitted, and adjusting the power level of the synchronization message depending on the presence of data. The synchronization messages corresponding to the idle state employ a lower power level than the active state transmissions which employ a higher power level. The system therefore controls the power accordingly such that synchronization messages are sent at a lower power level when no data is present, thereby reducing power consumption and interference.

    Abstract translation: 在无线通信系统中,维持无线信道用于用户和基站之间的通信。 通常,无线用户可以被接通,而不是主动地发送或接收数据。 因此,无线用户可能是“活动的”,并且当前分配了用于发送或接收或“空闲”的无线业务信道,而不是当前的发送或接收。 可以通过周期性同步消息序列将无线用户维持在空闲状态。 用于控制无线消息的功率电平的方法包括确定要发送的数据的存在,以及根据数据的存在来调整同步消息的功率电平。 对应于空闲状态的同步消息采用比采用较高功率电平的有效状态传输更低的功率电平。 因此,系统相应地控制功率,使得当没有数据存在时,以较低的功率电平发送同步消息,从而降低功耗和干扰。

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