ワイヤレス通信における階層的コードブック設計のための方法および装置

    公开(公告)号:JP2015092682A

    公开(公告)日:2015-05-14

    申请号:JP2014239288

    申请日:2014-11-26

    Applicant: QUALCOMM INC

    Abstract: 【課題】マルチユーザ多入力多出力(MU−MIMO)システムのアップリンク帯域幅オーバーヘッドの節約および/または量子化エラーの低減を行う。【解決手段】ブロック302で、送信ランクに基づいて体系化された少なくとも1つのコードブックセットを備えるコードブックのファミリが生成され、コードブックセットは、複数の階層的コードブックを備えている。ブロック304で、複数の記述コーディング(MDC)チャネルフィードバックスキームで使用されるコードブックのファミリが提供される。【選択図】図3

    Discontinuous transmission signaling over uplink control channel
    13.
    发明专利
    Discontinuous transmission signaling over uplink control channel 审中-公开
    上链控制通道不连续传输信号

    公开(公告)号:JP2013240068A

    公开(公告)日:2013-11-28

    申请号:JP2013123561

    申请日:2013-06-12

    Abstract: PROBLEM TO BE SOLVED: To provide systems and methods that facilitate signaling and detecting discontinuous transmission (DTX) in a wireless communication environment.SOLUTION: A DTX indicator and channel quality indicator (CQI) feedback can be multiplexed within a common uplink control channel subframe and transmitted to a base station when an access terminal is operating in a DTX mode for an acknowledgement channel. Further, when operating in a non-DTX mode, the access terminal can multiplex an ACK indicator or a NAK indicator with the CQI feedback within a common uplink control channel subframe, which can thereafter be transferred to the base station. Accordingly, the base station can detect DTX operation or non-DTX operation of the access terminal.

    Abstract translation: 要解决的问题:提供在无线通信环境中促进信令和检测不连续传输(DTX)的系统和方法。解决方案:DTX指示符和信道质量指示符(CQI)反馈可以在公共上行链路控制信道子帧内多路复用, 当接入终端以确认信道的DTX模式操作时,发送到基站。 此外,当以非DTX模式操作时,接入终端可以在公共上行链路控制信道子帧内复用ACK指示符或NAK指示符与CQI反馈,其后可以传送到基站。 因此,基站可以检测接入终端的DTX操作或非DTX操作。

    Reference signal design for cell search in orthogonal wireless communication system
    14.
    发明专利
    Reference signal design for cell search in orthogonal wireless communication system 有权
    正交无线通信系统中小区搜索的参考信号设计

    公开(公告)号:JP2013153468A

    公开(公告)日:2013-08-08

    申请号:JP2013038877

    申请日:2013-02-28

    Abstract: PROBLEM TO BE SOLVED: To facilitate efficient cell acquisition in a wireless communication system.SOLUTION: A reference signal for use in cell acquisition can be constructed in a bandwidth-agnostic manner such that it contains a common central portion in a predetermined frequency band that is independent of a bandwidth utilized by an associated wireless communication system. The central portion can be constructed as a two-dimensional block in time and frequency that spans a default cell search bandwidth, a predetermined bandwidth specified by synchronization codes or other signals, or another suitable bandwidth. A reference signal can then be constructed to form the central portion by tiling or expanding the central portion such that it spans the entire system bandwidth.

    Abstract translation: 要解决的问题:为了促进无线通信系统中的有效小区获取。解决方案:用于小区获取的参考信号可以以与带宽无关的方式构建,使得它包含预定频带中的公共中心部分, 独立于相关无线通信系统所利用的带宽。 中心部分可以被构造为跨越默认小区搜索带宽,由同步码或其他信号指定的预定带宽或另一适当带宽的时间和频率的二维块。 然后可以构造参考信号以通过平铺或扩展中心部分来形成中心部分,使得它跨越整个系统带宽。

    Coding and multiplexing of control information in wireless communication system
    15.
    发明专利
    Coding and multiplexing of control information in wireless communication system 审中-公开
    无线通信系统中控制信息的编码和多路复用

    公开(公告)号:JP2013081193A

    公开(公告)日:2013-05-02

    申请号:JP2012251923

    申请日:2012-11-16

    Abstract: PROBLEM TO BE SOLVED: To provide techniques for sending control information in a wireless communication system.SOLUTION: A UE spreads control information across frequency with a DFT and across time with an orthogonal sequence. The UE receives codewords for N HARQ processes in N subframes, determines an ACK value for each HARQ process, codes N ACK values for the N HARQ processes to obtain ACK information, determines output data for the ACK information, and sends the output data in one of M uplink subframes. First control information is processed based on a first coding and multiplexing scheme utilizing code division multiplexing in the time and frequency domains. Second control information is processed based on a second coding and multiplexing scheme utilizing code division multiplexing in the time domain and spreading in the frequency domain.

    Abstract translation: 要解决的问题:提供在无线通信系统中发送控制信息的技术。 解决方案:UE通过DFT跨越时间跨越时间以正交序列扩展控制信息。 UE在N个子帧中接收N个HARQ进程的码字,确定每个HARQ进程的ACK值,对N个HARQ进程的N个ACK值进行编码以获得ACK信息,确定ACK信息的输出数据,并将输出数据发送到一个 的M个上行子帧。 基于利用时域和频域中的码分复用的第一编码和复用方案处理第一控制信息。 基于利用时域中的码分复用的第二编码和复用方案来处理第二控制信息,并在频域中扩展。 版权所有(C)2013,JPO&INPIT

    Method and apparatus for random access in orthogonal multiple-access communication system
    17.
    发明专利
    Method and apparatus for random access in orthogonal multiple-access communication system 有权
    正交多通道通信系统随机访问的方法与装置

    公开(公告)号:JP2012257258A

    公开(公告)日:2012-12-27

    申请号:JP2012155004

    申请日:2012-07-10

    Abstract: PROBLEM TO BE SOLVED: To provide techniques for accessing a wireless communication system.SOLUTION: User equipment (UE) sends a random access preamble including a random identifier (ID), a channel quality indicator (CQI), etc. The UE randomly selects the random ID, or this random ID is assigned to the UE. The UE receives a random access response from a base station. The random access response includes control channel resources (CQI and PC resources), uplink resources, and control information (timing advance and PC correction) for the UE. The random access response is sent in two parts using two messages. A first message may include identification information and other information on a control channel. A second message may be sent on a shared data channel and may include remaining information for the random access response.

    Abstract translation: 要解决的问题:提供接入无线通信系统的技术。 解决方案:用户设备(UE)发送包括随机标识符(ID),信道质量指示符(CQI)等的随机接入前导码.UE随机选择随机ID,或将该随机ID分配给UE 。 UE从基站接收随机接入响应。 随机接入响应包括UE的控制信道资源(CQI和PC资源),上行链路资源和控制信息(定时提前和PC校正)。 随机访问响应使用两个消息分两部分发送。 第一消息可以包括控制信道上的标识信息和其他信息。 可以在共享数据信道上发送第二消息,并且可以包括用于随机接入响应的剩余信息。 版权所有(C)2013,JPO&INPIT

    Method and apparatus for enhanced paging
    18.
    发明专利
    Method and apparatus for enhanced paging 有权
    用于增强寻呼的方法和装置

    公开(公告)号:JP2012075112A

    公开(公告)日:2012-04-12

    申请号:JP2011221083

    申请日:2011-10-05

    Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for efficiently paging user equipment (UE) in a wireless communication system.SOLUTION: The apparatus comprises: at least one processor configured to mask information with a paging identifier (ID) to obtain masked information, and to send the masked information to convey the information and to implicitly convey the paging indicator; and a memory coupled to the at least one processor. The at least one processor is configured to generate a cyclic redundancy check (CRC) value that is used as the information to be masked, to mask the CRC value with the paging ID to generate a masked CRC value, and to send the masked CRC value.

    Abstract translation: 解决的问题:提供一种在无线通信系统中有效地寻呼用户设备(UE)的方法和装置。 该装置包括:至少一个处理器,被配置为用寻呼标识符(ID)屏蔽信息以获得被屏蔽的信息,并发送掩蔽的信息以传达信息并隐含地传送寻呼指示符; 以及耦合到所述至少一个处理器的存储器。 所述至少一个处理器被配置为生成用作要屏蔽的信息的循环冗余校验(CRC)值,以用寻呼ID屏蔽CRC值以生成被屏蔽的CRC值,并且发送被掩蔽的CRC值 。 版权所有(C)2012,JPO&INPIT

    Quasi-orthogonal allocation of codes in td-cdma systems
    19.
    发明专利
    Quasi-orthogonal allocation of codes in td-cdma systems 有权
    TD-CDMA系统代码的正交正交分配

    公开(公告)号:JP2012070393A

    公开(公告)日:2012-04-05

    申请号:JP2011226971

    申请日:2011-10-14

    Abstract: PROBLEM TO BE SOLVED: To provide systems and methodologies that facilitate increasing of throughput in a time-division duplexed CDMA wireless communication environment.SOLUTION: A set of orthogonal Walsh code sequences can be assigned to users of the first group in a network sector, and a duplicate set of orthogonal Walsh code sequences is assigned to at least users of the second group in the sector. Reception antennas whose number is equal to or greater than the number of duplicate code sets being assigned are deployed to linearly scale sector capacity to meet user demand. User devices employing duplicate Walsh code sequence assignments at a base station serving the sector is distinguished from each other, and timing offset between such users is enforced to mitigate any jamming effect at the base station receiver. Still furthermore, user device channel requirements in the sector is continuously evaluated and an appropriate number of antennas is dynamically deployed to provide scalable service to all such user devices.

    Abstract translation: 要解决的问题:提供有助于在时分双工CDMA无线通信环境中增加吞吐量的系统和方法。 解决方案:可以将一组正交沃尔什码序列分配给网络扇区中的第一组的用户,并且将至少一组正交沃尔什码序列分配给扇区中的第二组的至少用户。 数量等于或大于分配的重复码集数的接收天线被部署以线性地缩放扇区容量以满足用户需求。 在服务于扇区的基站处采用重复沃尔什码序列分配的用户设备彼此区分,并且强制这些用户之间的定时偏移以减轻基站接收机处的任何干扰效应。 此外,不断地评估扇区中的用户设备信道要求,并且动态地部署适当数量的天线以向所有这样的用户设备提供可扩展服务。 版权所有(C)2012,JPO&INPIT

    Method and system for power control in communication system
    20.
    发明专利
    Method and system for power control in communication system 有权
    通信系统功率控制方法与系统

    公开(公告)号:JP2010268495A

    公开(公告)日:2010-11-25

    申请号:JP2010154892

    申请日:2010-07-07

    CPC classification number: H04W52/16 H04W52/267

    Abstract: PROBLEM TO BE SOLVED: To perform transmitting power control while efficiently estimating signal-to-noise ratios of a received signal irrespective of intentional adjustments to transmitting power due to fluctuating data rates. SOLUTION: The variation in power due to the change in data rate is decoupled from environmental sources for variations in power. The signal to noise ratio is adjusted for the data rate. The received signal power for another data rate is used as an offset for the signal to noise computation. This permits a system to efficiently and accurately control power in a power control loop for efficient use of spectral bandwidth and for improved grade of service. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:在有效估计接收信号的信噪比的同时执行发射功率控制,而不管由于波动的数据速率而有意调节发射功率。 解决方案:由于数据速率的变化导致的功率变化与环境因素的不同而导致功率变化。 对于数据速率调整信噪比。 用于另一数据速率的接收信号功率用作信噪比计算的偏移量。 这允许系统有效和准确地控制功率控制环路中的功率,以有效利用频谱带宽和改善服务等级。 版权所有(C)2011,JPO&INPIT

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