Asymmetric mode of operation in multi-carrier communication systems
    102.
    发明授权
    Asymmetric mode of operation in multi-carrier communication systems 有权
    多载波通信系统中的不对称操作模式

    公开(公告)号:US08160596B2

    公开(公告)日:2012-04-17

    申请号:US11486513

    申请日:2006-07-13

    IPC分类号: H04W72/00

    CPC分类号: H04B7/264 H04L1/16 H04L5/023

    摘要: A method and system for providing asymmetric modes of operation in multi-carrier wireless communication systems. A method may assign a long code mask (LCM) to an information channel associated with a plurality of forward link carriers to transmit data from an access network to an access terminal; and multiplex the information channel on a reverse link carrier. The information channel may include one of data source channel (DSC), data rate control (DRC) and acknowledgment (ACK) information, and the multiplexing may be code division multiplexing (CDM). The AN may instruct the AT on whether to multiplex the DSC information based on feedback from the AT. The method may further offset the ACK information on the reverse link to reduce the reverse link peak to average, CDM the information channel on an I-branch and on a Q-branch, and transmit the code division multiplexed information channel on the reverse link carrier.

    摘要翻译: 一种用于在多载波无线通信系统中提供不对称操作模式的方法和系统。 方法可以将长码掩码(LCM)分配给与多个前向链路载波相关联的信息信道,以将数据从接入网络传输到接入终端; 并在反向链路载波上复用信息信道。 信息信道可以包括数据源信道(DSC),数据速率控制(DRC)和确认(ACK)信息之一,并且复用可以是码分复用(CDM)。 AN可以根据AT的反馈来指示AT是否复用DSC信息。 该方法还可以抵消反向链路上的ACK信息,以减少反向链路峰值平均,CDM在I分支和Q分支上的信道,并在反向链路载波上发送码分多路复用信息信道 。

    Compression static and semi-static context transfer
    103.
    发明授权
    Compression static and semi-static context transfer 有权
    压缩静态和半静态上下文传输

    公开(公告)号:US08081603B2

    公开(公告)日:2011-12-20

    申请号:US12167732

    申请日:2008-07-03

    IPC分类号: H04W4/00

    摘要: Systems, methodologies, and devices are described that facilitate transferring a subset of compression context from a source base station to a target base station during an inter-base station handover of a mobile device to facilitate establishment of compression context between the mobile device and target base station. The source base station can transfer a subset of compression context comprising static and semi-static context to the target base station during inter-base station handover to at least partially establish compression context between the mobile device and target base station prior to or during handover. The source base station can transmit, to the mobile device, indicator information related to compression context transferred. The target base station can at least partially establish compression context based on received subset of compression context to facilitate efficient communication with the mobile device and can establish any remaining portion of compression context with the mobile device after handover.

    摘要翻译: 描述了在移动设备的基站间切换期间促进将压缩上下文的子集从源基站传送到目标基站的系统,方法和设备,以便于在移动设备和目标基站之间建立压缩上下文 站。 源基站可以在基站间切换期间将包括静态和半静态上下文的压缩上下文的子集传送到目标基站,以在切换之前或期间至少部分地建立移动设备与目标基站之间的压缩上下文。 源基站可以向移动设备发送与传送的压缩上下文相关的指示符信息。 目标基站可以基于所接收的压缩上下文的子集来至少部分地建立压缩上下文,以促进与移动设备的有效通信,并且可以在切换之后与移动设备建立压缩上下文的任何剩余部分。

    METHOD AND APPARATUS FOR INTER-SYSTEM HANDOVER
    104.
    发明申请
    METHOD AND APPARATUS FOR INTER-SYSTEM HANDOVER 有权
    用于系统间切换的方法和装置

    公开(公告)号:US20110206009A1

    公开(公告)日:2011-08-25

    申请号:US13100802

    申请日:2011-05-04

    IPC分类号: H04W36/00

    CPC分类号: H04W36/0061 H04W36/38

    摘要: An inter-system handover system for a wireless communication system supports hand-down and hand-up of user equipment (UE) to different radio access technologies, including synchronous and asynchronous systems. Latency and handover connection failures are reduced by an access node (nodeB) broadcasting information about neighboring systems (targets) when the UE reception (RX) capability is both inside or outside the reception range of the target. A single RX chain is sufficient, although transitioning between a wireless wide area network (WWAN) to a wireless local area network may (WLAN) may advantageously benefit from simultaneous operation on two Rx chains. Optimized list of neighboring RAT systems (targets) are broadcast from the network, including measurement parameters and reporting instructions. Thereby, UE-driven reporting minimizes latencies. UE reports other-system searches to network only if needed for a handover. In addition, handover requests can be bundled with other-system measurement information, if necessary, for additional efficiencies.

    摘要翻译: 用于无线通信系统的系统间切换系统支持用户设备(UE)向包括同步和异步系统的不同无线电接入技术的切换和交换。 当UE接收(RX)能力在目标的接收范围内部或外部时,接入节点(节点B)广播关于相邻系统(目标)的信息的延迟和切换连接故障被减少。 单个RX链是足够的,尽管在无线广域网(WWAN)到无线局域网(WLAN)之间的转换可以有利地受益于在两个Rx链上的同时操作。 相邻RAT系统(目标)的优化列表从网络广播,包括测量参数和报告指令。 因此,UE驱动的报告使延迟最小化。 只有在切换需要时,UE才会将其他系统搜索报告给网络。 此外,如果需要,可以将切换请求与其他系统的测量信息捆绑在一起以用于附加的效率。

    ADAPTIVE SEMI-STATIC INTERFERENCE AVOIDANCE IN CELLULAR NETWORKS
    105.
    发明申请
    ADAPTIVE SEMI-STATIC INTERFERENCE AVOIDANCE IN CELLULAR NETWORKS 有权
    细胞网络中的自适应干扰干扰避免

    公开(公告)号:US20100136998A1

    公开(公告)日:2010-06-03

    申请号:US12603736

    申请日:2009-10-22

    IPC分类号: H04W72/04

    CPC分类号: H04W16/14

    摘要: Techniques for the reuse of airlink resources in a cellular network are disclosed. A base station controller may gather information about load levels at adjacent sectors of the cellular network. The base station controller may generate and distribute a reuse reference to base stations serving mobile devices in the adjacent sectors. Alternatively, the base station controller may provide the load level information to base stations serving the adjacent sectors and the base stations may determine a sector reuse pattern. The reuse reference or reuse pattern may be adapted to sector load conditions and may designate any combination of carriers, time slots, and power levels for data transmission in a sector. The base stations may schedule data transmission to mobile devices in their respective sectors according to the reuse reference or reuse pattern. The base stations may modify their resource usage in response to changes in sector load.

    摘要翻译: 公开了在蜂窝网络中重用空中链路资源的技术。 基站控制器可以收集关于蜂窝网络的相邻扇区处的负载水平的信息。 基站控制器可以生成并分配对在相邻扇区中服务移动设备的基站的重用基准。 或者,基站控制器可以将负载水平信息提供给服务于相邻扇区的基站,并且基站可以确定扇区重用模式。 复用参考或重用模式可以适用于扇区负载条件,并且可以指定用于扇区中的数据传输的载波,时隙和功率电平的任何组合。 基站可以根据重用参考或重用模式来调度在各自扇区中的移动设备的数据传输。 基站可以根据扇区负载的变化来修改其资源使用。

    Method and apparatus for determining power required for data transmission in communication systems
    107.
    发明授权
    Method and apparatus for determining power required for data transmission in communication systems 有权
    用于确定通信系统中的数据传输所需功率的方法和装置

    公开(公告)号:US07693213B2

    公开(公告)日:2010-04-06

    申请号:US11627303

    申请日:2007-01-25

    IPC分类号: H04B3/46 H04B17/00 H04Q1/20

    摘要: Methods and apparatus for estimating a transmission power required for data transmission in a communication system are disclosed. A terminal determines a quality metric of a communication link, over which data are to be transmitted, and modifies the determined quality metric by a quality metric margin. The terminal then estimates the maximum rate of data in accordance with the modified quality metric. Alternatively, the terminal estimates transmission power required for data transmission with a data rate in accordance with the modified quality metric. The quality metric margin may be a pre-determined or dynamically adjusted. The terminal dynamically adjusts the quality metric margin in accordance with a result of comparison of a transmit power corresponding to the estimated maximum rate of data with an actual transmit power used to transmit the data.

    摘要翻译: 公开了用于估计通信系统中的数据传输所需的发送功率的方法和装置。 终端确定要发送数据的通信链路的质量度量,并通过质量度量边界修改所确定的质量度量。 终端然后根据修改的质量度量来估计最大数据速率。 或者,终端根据修改的质量度量来估计数据传输所需的传输功率。 质量度量余量可以是预先确定的或动态调整的。 终端根据与估计的最大数据速率相对应的发射功率与用于发送数据的实际发射功率的比较结果动态地调整质量度量余量。

    SYSTEMS AND METHODS EMPLOYING MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) TECHNIQUES
    108.
    发明申请
    SYSTEMS AND METHODS EMPLOYING MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) TECHNIQUES 有权
    采用多输入多输出(MIMO)技术的系统和方法

    公开(公告)号:US20100067480A1

    公开(公告)日:2010-03-18

    申请号:US12545693

    申请日:2009-08-21

    IPC分类号: H04W72/04 H04J1/00

    摘要: A system has multiple antennas, a Time Division Multiplexing (TDM) module creating TDM slots, and demultiplexing circuitry inserting within the TDM slots Orthogonal Frequency Division Multiplexing (OFDM) symbols and associating the TDM slots with data sub-streams. The system also includes precoding circuitry associating the data sub-streams with multiple tones. Each of the respective tones corresponds to a respective one of the antennas. The antennas transmit the data sub-streams using the multiple tones.

    摘要翻译: 系统具有多个天线,创建TDM时隙的时分复用(TDM)模块,以及在TDM时隙正交频分复用(OFDM)符号内插入多路复用电路,并将TDM时隙与数据子流相关联。 该系统还包括将数据子流与多个音调相关联的预编码电路。 各个音调中的每一个对应于相应的一个天线。 天线使用多个音调发送数据子流。

    FRAME TERMINATION
    109.
    发明申请
    FRAME TERMINATION 有权
    框架终止

    公开(公告)号:US20090232052A1

    公开(公告)日:2009-09-17

    申请号:US12389211

    申请日:2009-02-19

    IPC分类号: H04W52/00 H04W72/04

    摘要: Techniques to increase capacity in a wireless communications system. In an aspect, systematic non-transmission, or “blanking,” of minimal-rate frames transmitted in a communications system is provided. In an exemplary embodiment, eighth rate frames in a cdma2000 voice communications system are systematically substituted with null-rate frames carrying zero traffic bits. Provisions are nevertheless made for the transmission of certain designated as “critical” by, e.g., a vocoder. The receiver detects the presence of null rate or non-null rate transmissions and processes the received frames accordingly, including updating an outer loop power control only in response to non-null rate frames. Further techniques for changing the pilot transmission gating pattern to assist the receiver in detecting null rate frames are provided. In another aspect, early termination of a signal transmission over a wireless communications link is provided. In an exemplary embodiment, a base station (BS) transmits power control groups (PCG's) for a frame over a forward link (FL) to a mobile station (MS) until accurate reception of the frame is acknowledged by the MS over a reverse link (RL), possibly before all PCG's of the frame are received over the FL. Possible ACK signaling methods are defined for channels associated with a cdma2000 wireless communications system. In another exemplary embodiment, techniques for reverse link early termination are also provided.

    摘要翻译: 提高无线通信系统容量的技术。 在一方面,提供了在通信系统中传输的最小速率帧的系统非传输或“消隐”。 在示例性实施例中,cdma2000语音通信系统中的第八速率帧被系统地替换为带有零业务位的零速率帧。 然而,对于由例如声码器指定为“关键”的某些设备进行了规定。 接收机检测到零速率或非零速率传输的存在并相应地处理接收到的帧,包括仅响应于非空速率帧来更新外部环路功率控制。 提供了用于改变导频传输门控模式以辅助接收机检测零速率帧的其它技术。 在另一方面,提供了通过无线通信链路的信号传输的提前终止。 在示例性实施例中,基站(BS)通过前向链路(FL)向移动站(MS)发送用于帧的功率控制组(PCG),直到MS通过反向链路确认帧的准确接收 (RL),可能在帧的所有PCG之前都被接收到FL。 针对与cdma2000无线通信系统相关的通道定义了可能的ACK信令方法。 在另一示例性实施例中,还提供了用于反向链路提前终止的技术。

    HANDOVER MECHANISM THAT EXPLOITS UPLINK CHANNEL QUALITY OF A TARGET CELL
    110.
    发明申请
    HANDOVER MECHANISM THAT EXPLOITS UPLINK CHANNEL QUALITY OF A TARGET CELL 有权
    开放机制可以提升目标品质的渠道质量

    公开(公告)号:US20090028112A1

    公开(公告)日:2009-01-29

    申请号:US12049867

    申请日:2008-03-17

    IPC分类号: H04W36/30

    CPC分类号: H04W36/30 H04W36/245

    摘要: System(s) and method(s) are provided for handover of a mobile terminal in a wireless communication system. Handoff resolution relies on both a downlink channel quality indication between a serving base station and the mobile terminal,, and uplink channel quality indications amongst the terminal and a measurement set of target base stations. To generate UL channel quality indicators, the mobile station conveys a narrowband or broadband, sounding reference signal, and serving and target base stations measure UL and DL performance metrics (e.g., RSRP, RSSI, or RSOT). In backward handover, UL channel state information from target cells is received at the serving base station through backhaul communication, and handoff is resolved based on both UL and DL quality reports. In forward handover, the set of UL quality reports are conveyed to the mobile station to determine a target cell for handoff.

    摘要翻译: 提供了一种用于无线通信系统中的移动终端切换的系统和方法。 切换分辨率依赖于服务基站和移动终端之间的下行链路信道质量指示,以及终端之间的上行链路信道质量指示和目标基站的测量集合。 为了产生UL信道质量指示符,移动台传送窄带或宽带,探测参考信号,并且服务和目标基站测量UL和DL性能度量(例如,RSRP,RSSI或RSOT)。 在向后切换中,通过回程通信在服务基站接收来自目标小区的UL信道状态信息,并且基于UL和DL质量报告来解决切换。 在正向切换中,将该UL质量报告传送给移动台以确定用于切换的目标小区。