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    COLLISION DETECTION IN A SHARED RADIO FREQUENCY SPECTRUM BAND
    515.
    发明申请
    COLLISION DETECTION IN A SHARED RADIO FREQUENCY SPECTRUM BAND 审中-公开

    公开(公告)号：US20170111931A1

    公开(公告)日：2017-04-20

    申请号：US15246005

    申请日：2016-08-24

    Applicant: QUALCOMM Incorporated

    Inventor： Aleksandar Damnjanovic ,  Maarten Menzo Wentink ,  Srinivas Yerramalli ,  Qingsi Wang ,  Yongbin Wei ,  Juan Montojo

    IPC: H04W74/08 ,  H04W16/14

    CPC classification number: H04W74/0825 ,  H04L5/0055 ,  H04W16/14 ,  H04W74/0858 ,  H04W84/12 ,  H04W88/06

    Abstract: Detection and reporting techniques for collisions between transmitters of two different radio access technologies (RATs) transmitting in a shared radio frequency spectrum band is described. The collision may occur following a listen-before-talk procedure but prior to transmission of data, and may not affect the reception of the transmitted data. Collisions may be detected using for example, energy sensing, preamble or ready-to-send (RTS) signal detection, or unsuccessful decoding of all or part of a channel reservation signal. A transmitting device may determine a collision has occurred by detecting an energy level during a preamble transmission is greater than a threshold level or by detecting that an energy level during a transmission gap of a time-domain energy pattern is above a threshold level. A receiving device, such as a user equipment (UE), that detects the collision may report the collision to the transmitter.

    Enhanced SRS transmission for MIMO operation in LTE-A
    517.
    发明授权
    Enhanced SRS transmission for MIMO operation in LTE-A 有权
    LTE-A中用于MIMO操作的增强型SRS传输

    公开(公告)号：US09596065B2

    公开(公告)日：2017-03-14

    申请号：US13773316

    申请日：2013-02-21

    Applicant: QUALCOMM Incorporated

    Inventor： Wanshi Chen ,  Peter Gaal ,  Hao Xu ,  Yongbin Wei ,  Stefan Geirhofer

    IPC: H04L5/00 ,  H04L25/02 ,  H04J11/00 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08

    CPC classification number: H04W72/042 ,  H04B7/0413 ,  H04B7/046 ,  H04B7/0602 ,  H04B7/0613 ,  H04B7/0615 ,  H04B7/0619 ,  H04B7/0634 ,  H04B7/0684 ,  H04B7/0697 ,  H04B7/0802 ,  H04J11/005 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0073 ,  H04L5/14 ,  H04L25/0206

    Abstract: Enhanced sounding reference signal (SRS) transmissions for multiple input, multiple output (MIMO) operation are disclosed in which a user equipment (UE) detects an observed interference level for each receiver chain of the UE. In response to an imbalance, the UE precodes a SRS targeting downlink operation to indicate the imbalance. The UE then transmits the precoded SRS. In alternative aspects, the precoded SRS vector may be determined by an evolved nodeB (eNB). In such aspects, the eNB determines the precoded SRS vector targeting downlink operations for the served UEs, wherein the determined precoded SRS vector includes determining the precoded SRS vector on a per UE basis, enabling the precoded SRS vector for either one or both of frequency division duplex (FDD) systems and time division duplex (TDD) systems, or enabling the precoded SRS vector for aperiodic SRS only. The eNB then transmits the determined precoded SRS vector to the UE.

    Abstract translation: 公开了用于多输入多输出（MIMO）操作的增强的探测参考信号（SRS）传输，其中用户设备（UE）检测UE的每个接收机链的观测到的干扰等级。 响应于不平衡，UE预编码针对下行链路操作的SRS以指示不平衡。 然后，UE发送预编码的SRS。 在替代方面，预编码的SRS向量可以由演进节点B（eNB）确定。 在这些方面中，eNB确定针对所服务的UE的针对下行链路操作的预编码的SRS矢量，其中所确定的预编码的SRS矢量包括在每个UE的基础上确定预编码的SRS矢量，使得能够对分频中的一个或两者进行预编码的SRS矢量 双工（FDD）系统和时分双工（TDD）系统，或仅使经过预编码的SRS矢量用于非周期性SRS。 然后，eNB将确定的预编码的SRS向量发送给UE。

    FLEXIBLE CODING SCHEMES
    518.
    发明申请
    FLEXIBLE CODING SCHEMES 审中-公开
    灵活编码方案

    公开(公告)号：US20170026976A1

    公开(公告)日：2017-01-26

    申请号：US15175966

    申请日：2016-06-07

    Applicant: QUALCOMM Incorporated

    Inventor： Taesang Yoo ,  Jing Sun ,  Durga Prasad Malladi ,  Yongbin Wei ,  Weiliang Zeng ,  Siddhartha Mallik ,  Aleksandar Damnjanovic

    IPC: H04W72/08 ,  H04L1/00 ,  H04W72/04

    CPC classification number: H04W72/082 ,  H04L1/0009 ,  H04L1/0057 ,  H04L67/322 ,  H04W72/0413 ,  H04W72/042

    Abstract: Methods, systems, and devices for wireless communication using various coding schemes for data transmission are described. A wireless communication system may support multiple coding schemes such as, for example, turbo codes and low density parity check codes. The system may support selection of the coding scheme based on explicit signaling or implicit evaluation of transmission parameters. A transmitting device may select a coding scheme, encode a message using the selected coding scheme, and transmit the encoded message over a wireless connection. The receiving device may receive the encoded message, select the coding scheme, and decode the message using the select coding scheme.

    Abstract translation: 描述了使用各种用于数据传输的编码方案的用于无线通信的方法，系统和装置。 无线通信系统可以支持多种编码方案，例如turbo码和低密度奇偶校验码。 该系统可以支持基于显式信令或传输参数的隐含评估来选择编码方案。 发送设备可以选择编码方案，使用所选择的编码方案对消息进行编码，并通过无线连接发送编码的消息。 接收设备可以接收编码消息，选择编码方案，并使用选择编码方案对消息进行解码。

    MEMORY MANAGEMENT FOR RECEPTION OF WIRELESS COMMUNICATIONS
    519.
    发明申请
    MEMORY MANAGEMENT FOR RECEPTION OF WIRELESS COMMUNICATIONS 审中-公开
    用于接收无线通信的记忆管理

    公开(公告)号：US20160381673A1

    公开(公告)日：2016-12-29

    申请号：US15182065

    申请日：2016-06-14

    Applicant: QUALCOMM Incorporated

    Inventor： Jing Sun ,  Tao Luo ,  Taesang Yoo ,  Peter Gaal ,  Yongbin Wei ,  Durga Prasad Malladi ,  Siddhartha Mallik

    IPC: H04W72/04 ,  H04L1/18 ,  G06F3/06

    CPC classification number: H04L1/1861 ,  G06F3/0613 ,  G06F3/065 ,  G06F3/067 ,  H04L1/1822 ,  H04L1/1887

    Abstract: A base station or user equipment (UE) may manage scheduling of code blocks to be transmitted and manage memory interface usage to enhance memory read and write operations and provide for enhanced efficiency for decoding of retransmissions of code blocks. In some aspects, a base station or UE may identify an available throughput, or budget, for performing read and write operations to a memory. The base station or UE may then estimate an amount of read and write operations to be performed during a particular time period. In the event that the amount of read and write operations exceed the budget, scheduling of code blocks to be transmitted may be adjusted, one or more read or write operations may be skipped, or combinations thereof may be employed to achieve the memory read and write budget.

    Abstract translation: 基站或用户设备（UE）可以管理要发送的代码块的调度，并且管理存储器接口使用以增强存储器读和写操作，并提供用于解码代码块的重传的增强的效率。 在一些方面，基站或UE可以识别用于对存储器执行读取和写入操作的可用吞吐量或预算。 然后，基站或UE可以估计在特定时间段期间执行的读取和写入操作的量。 在读取和写入操作量超过预算的情况下，可以调整要发送的代码块的调度，可以跳过一个或多个读取或写入操作，或者可以采用它们的组合来实现存储器的读取和写入 预算。

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