Enhancing sounding reference signals (SRS)
    71.
    发明授权
    Enhancing sounding reference signals (SRS) 有权
    增强探测参考信号(SRS)

    公开(公告)号:US08885616B2

    公开(公告)日:2014-11-11

    申请号:US13546657

    申请日:2012-07-11

    摘要: A method for enhancing a sounding reference signal (SRS) in a non-root wireless communication device is disclosed. The method determines that all SRS transmissions for the wireless communication device are to occur in an uplink pilot time slot (UpPTS) portion of a transition subframe. The method also determines whether available uplink bandwidth for the UpPTS portion is greater than available uplink bandwidth for a normal uplink subframe. A current SRS is transmitted using the available uplink bandwidth for UpPTS portion when the available uplink bandwidth for the UpPTS portion is greater than available uplink bandwidth for the normal uplink subframe.

    摘要翻译: 公开了一种用于在非根无线通信设备中增强探测参考信号(SRS)的方法。 该方法确定无线通信设备的所有SRS传输将在转换子帧的上行链路导频时隙(UpPTS)部分中发生。 该方法还确定UpPTS部分的可用上行链路带宽是否大于正常上行链路子帧的可用上行链路带宽。 当UpPTS部分的可用上行链路带宽大于正常上行链路子帧的可用上行链路带宽时,使用UpPTS部分的可用上行链路带宽发送当前SRS。

    Transmission of reference signal on non-contiguous clusters of resources
    72.
    发明授权
    Transmission of reference signal on non-contiguous clusters of resources 有权
    在不连续的资源集群上传输参考信号

    公开(公告)号:US09288026B2

    公开(公告)日:2016-03-15

    申请号:US12816929

    申请日:2010-06-16

    IPC分类号: H04L5/00 H04J13/00 H04L27/26

    摘要: A reference signal is transmitted on multiple non-contiguous clusters of resources. A user equipment (UE) may be scheduled for data transmission on the multiple non-contiguous clusters, and each cluster may cover a set of contiguous subcarriers. The UE may generate the reference signal based on at least one reference signal (RS) sequence using code division multiplexing (CDM) or frequency division multiplexing (FDM). In a design, the UE generates the reference signal with CDM based on a single RS sequence having a length matching the total length of the multiple non-contiguous clusters. In another design, the UE generates the reference signal with CDM based on one RS sequence for each cluster. In yet another design, the UE generates the reference signal with FDM and transmits the reference signal on a subset of all subcarriers for the multiple non-contiguous clusters.

    摘要翻译: 参考信号在多个不连续的资源簇上传输。 可以调度用户设备(UE)以在多个不连续的群集上进行数据传输,并且每个群集可以覆盖一组连续的子载波。 UE可以使用码分复用(CDM)或频分复用(FDM),基于至少一个参考信号(RS)序列生成参考信号。 在设计中,UE基于具有与多个不连续簇的总长度匹配的长度的单个RS序列,用CDM生成参考信号。 在另一种设计中,UE根据每个簇的一个RS序列产生具有CDM的参考信号。 在又一设计中,UE使用FDM生成参考信号,并且在多个非连续簇的所有子载波的子集上发送参考信号。

    Downlink association set for uplink ACK/NACK in time division duplex system
    73.
    发明授权
    Downlink association set for uplink ACK/NACK in time division duplex system 有权
    下行链路关联在时分双工系统中为上行链路ACK / NACK设置

    公开(公告)号:US09184899B2

    公开(公告)日:2015-11-10

    申请号:US12903593

    申请日:2010-10-13

    IPC分类号: H04W4/00 H04L5/00 H04L1/16

    摘要: In a Time Division Duplex (TDD) system, downlink and uplink communications share the same bandwidth but occupy different subframes. When the downlink has more subframes than the uplink, special treatment on user equipment (UE) ACK/NACK feedback is needed. One uplink may need to ACK multiple downlink subframes. A downlink association without unnecessary ACK/NACK resources sets accounts for subframes for which ACK feedback is not desired. Examples of such subframes include: a blank subframe; an almost blank subframe where only a cell specific Reference Signal (RS) is transmitted; a Time Division Multiplex (TDM) partition in which an evolved NodeB (eNB) only transmits a Physical Downlink Shared Channel (PDSCH) or a Physical Downlink Control Channel (PDCCH) indicating Semi-persistent scheduling (SPS) at certain downlink subframes; a Downlink Pilot Timeslot (DwPTS) with a certain special subframe configuration where an eNB does not send the PDSCH and the UE is not in SPS active mode in the DwPTS; and a Multi-Media Broadcast over a Single Frequency Network (MBSFN) subframe when the UE is not in SPS active mode in the MBSFN subframe.

    摘要翻译: 在时分双工(TDD)系统中,下行链路和上行链路通信共享相同的带宽,但占用不同的子帧。 当下行链路具有比上行链路更多的子帧时,需要对用户设备(UE)ACK / NACK反馈进行特殊处理。 一个上行链路可能需要ACK多个下行链路子帧。 没有不必要的ACK / NACK资源的下行链路关联集合对不希望ACK反馈的子帧进行计费。 这样的子帧的示例包括:空白子帧; 几乎空白的子帧,其中仅发送小区特定参考信号(RS); 时分复用(TDM)分区,其中演进节点B(eNB)仅在某些下行链路子帧处发送指示半静态调度(SPS)的物理下行链路共享信道(PDSCH)或物理下行链路控制信道(PDCCH) 具有特定子帧配置的下行链路导频时隙(DwPTS),其中eNB不发送PDSCH,并且UE在DwPTS中不处于SPS活动模式; 以及当MBSFN子帧中的UE不处于SPS活动模式时,通过单频网络(MBSFN)子帧进行多媒体广播。

    Channel interleaver for transmission of multiple code blocks in a wireless communication system
    74.
    发明授权
    Channel interleaver for transmission of multiple code blocks in a wireless communication system 有权
    用于在无线通信系统中传输多个码块的信道交织器

    公开(公告)号:US08780821B2

    公开(公告)日:2014-07-15

    申请号:US12707196

    申请日:2010-02-17

    IPC分类号: H04W4/00 H04B7/216

    CPC分类号: H04L1/0071 H04L5/0007

    摘要: Techniques for performing channel interleaving to achieve similar SINRs for multiple code blocks are described. In one design, a transmitter station (e.g., a base station or a UE) determines a plurality of resource groups assigned for data transmission. Each resource group includes a plurality of resource elements formed by a cluster of subcarriers in a time interval. The transmitter station partitions a transport block into a plurality of code blocks, processes each code block to obtain data symbols for that code block, and maps the data symbols for each code block to at least one resource element in each of the plurality of resource groups. The transmitter station transmits the mapped data symbols for the plurality of code blocks to a receiver station. In one design, the transmitter station receives an ACK or a NACK for the transport block and retransmits all code blocks if a NACK is received.

    摘要翻译: 描述了用于执行信道交织以实现用于多个码块的类似SINR的技术。 在一种设计中,发射机站(例如,基站或UE)确定分配用于数据传输的多个资源组。 每个资源组包括由时间间隔中的子载波簇形成的多个资源元素。 发射机站将传输块划分为多个码块,处理每个码块以获得该码块的数据符号,并将每个码块的数据符号映射到多个资源组中的每一个中的至少一个资源元素 。 发送站将多个码块的映射数据符号发送到接收站。 在一种设计中,发射机站接收传输块的ACK或NACK,并且如果接收到NACK,则重发所有码块。

    Dynamic selection of random access channel configurations
    75.
    发明授权
    Dynamic selection of random access channel configurations 有权
    随机接入信道配置的动态选择

    公开(公告)号:US08644277B2

    公开(公告)日:2014-02-04

    申请号:US12847742

    申请日:2010-07-30

    IPC分类号: H04W4/00

    摘要: Systems and methodologies are described that facilitate dynamic selection of a random access channel configuration. Typically, a single random access channel configuration is utilized throughout a cell; however, the configuration employed, while appropriate for some mobile devices within the cell, can introduce unnecessary overhead for other mobile devices. A mobile device can measure a characteristic of a radio link between the mobile device and a base station. The measurement can be compared to a set of thresholds provided by the base station. Based upon the comparison, a random access channel configuration can be selected from a set of formats. The selected configuration can be utilized to initiate random access procedures.

    摘要翻译: 描述了促进随机接入信道配置的动态选择的系统和方法。 通常,在整个单元中使用单个随机存取通道配置; 然而,在适用于小区内的一些移动设备的情况下所采用的配置可以为其他移动设备引入不必要的开销。 移动设备可以测量移动设备和基站之间的无线电链路的特性。 该测量可以与由基站提供的一组阈值进行比较。 基于比较,可以从一组格式中选择随机接入信道配置。 所选择的配置可用于启动随机接入过程。

    CHANNEL INTERLEAVER FOR TRANSMISSION OF MULTIPLE CODE BLOCKS IN A WIRELESS COMMUNICATION SYSTEM
    80.
    发明申请
    CHANNEL INTERLEAVER FOR TRANSMISSION OF MULTIPLE CODE BLOCKS IN A WIRELESS COMMUNICATION SYSTEM 有权
    在无线通信系统中传输多个代码块的通道交互

    公开(公告)号:US20100215007A1

    公开(公告)日:2010-08-26

    申请号:US12707196

    申请日:2010-02-17

    IPC分类号: H04W72/04

    CPC分类号: H04L1/0071 H04L5/0007

    摘要: Techniques for performing channel interleaving to achieve similar SINRs for multiple code blocks are described. In one design, a transmitter station (e.g., a base station or a UE) determines a plurality of resource groups assigned for data transmission. Each resource group includes a plurality of resource elements formed by a cluster of subcarriers in a time interval. The transmitter station partitions a transport block into a plurality of code blocks, processes each code block to obtain data symbols for that code block, and maps the data symbols for each code block to at least one resource element in each of the plurality of resource groups. The transmitter station transmits the mapped data symbols for the plurality of code blocks to a receiver station. In one design, the transmitter station receives an ACK or a NACK for the transport block and retransmits all code blocks if a NACK is received.

    摘要翻译: 描述了用于执行信道交织以实现用于多个码块的类似SINR的技术。 在一种设计中,发射机站(例如,基站或UE)确定分配用于数据传输的多个资源组。 每个资源组包括由时间间隔中的子载波簇形成的多个资源元素。 发射机站将传输块划分为多个码块,处理每个码块以获得该码块的数据符号,并将每个码块的数据符号映射到多个资源组中的每一个中的至少一个资源元素 。 发送站将多个码块的映射数据符号发送到接收站。 在一种设计中,发射机站接收传输块的ACK或NACK,并且如果接收到NACK,则重发所有码块。