HYBRID AUTOMATIC REPEAT REQUEST TIMING FOR REDUCED TRANSMISSION TIME INTERVALS

    公开(公告)号:US20190268105A1

    公开(公告)日:2019-08-29

    申请号:US16409367

    申请日:2019-05-10

    Abstract: Systems, methods, and apparatuses are described for wireless communication, including for hybrid automatic repeat request (HARQ) feedback in a system that supports communications using transmission time intervals (TTIs) of different durations. A base station may identify a user equipment's (UE) capability to provide HARQ feedback for transmissions that use TTIs of a shorter duration relative to other TTIs supported in the system. The base station may select a HARQ timing mode based on the capability of the UE and may indicate the selected HARQ timing mode to the UE. The base station may then transmit one or more data transmissions to the UE using the reduced TTIs. The UE may respond with HARQ feedback based on the HARQ timing mode. The HARQ timing mode may be based on different response times based on the location of the data transmission within a TTI or relative to data transmission in other TTIs.

    DUAL CONNECTIVITY WITH A NETWORK THAT UTILIZES AN UNLICENSED FREQUENCY SPECTRUM

    公开(公告)号:US20190069325A1

    公开(公告)日:2019-02-28

    申请号:US16116855

    申请日:2018-08-29

    Abstract: Aspects presented herein provide for dual connectivity with a standalone service provider in the unlicensed spectrum. A first base station may receive, from a UE, an indication of a capability for standalone operation in a first RAT that utilizes an unlicensed frequency spectrum and a dual connectivity capability involving the first RAT and a second RAT that utilizes a licensed frequency spectrum, wherein dual connectivity comprises the UE being connected to a master base station on a first frequency and a secondary base station on a second frequency at a same time. The first base station may signal a first set of procedures for dual connectivity when the level of support at the first base station is at higher layers of the first RAT and may signal a second set of procedures when the level of support at the first base station extends to lower layers of the first RAT.

    SINGLE-FREQUENCY NETWORK (SFN) OPERATION FOR MACHINE-TYPE COMMUNICATIONS (MTC) COVERAGE ENHANCEMENTS
    56.
    发明申请
    SINGLE-FREQUENCY NETWORK (SFN) OPERATION FOR MACHINE-TYPE COMMUNICATIONS (MTC) COVERAGE ENHANCEMENTS 有权
    机型通信(MTC)覆盖增强的单频网络(SFN)操作

    公开(公告)号:US20170048821A1

    公开(公告)日:2017-02-16

    申请号:US15339217

    申请日:2016-10-31

    Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to techniques for single-frequency network (SFN) operation for machine-type communications (MTC) coverage enhancements. A method is provided for wireless communications by a user equipment (UE). The method generally includes detecting a synchronization signal transmitted from at least one of a plurality of transmission points, wherein each of the plurality of transmission points transmits a synchronization signal at a different offset time relative to a subframe boundary in a synchronized network, determining a subframe occurring a fixed time after detecting the synchronization signal to monitor for system information transmitted from at least one of the plurality of transmission points, and monitoring for a system information block during the determined subframe.

    Abstract translation: 本公开的某些方面通常涉及无线通信,更具体地涉及用于机器型通信(MTC)覆盖增强的单频网络(SFN)操作的技术。 提供了一种用于用户设备(UE)进行无线通信的方法。 该方法通常包括检测从多个发送点中的至少一个发送的同步信号,其中多个发送点中的每一个相对于同步网络中的子帧边界以不同的偏移时间发送同步信号,确定子帧 在检测到同步信号之后发生固定时间,以监视从多个发送点中的至少一个发送的系统信息,以及在所确定的子帧期间监视系统信息块。

    MACHINE TYPE COMMUNICATION (MTC) CONFIGURATION, INTERFERENCE MANAGEMENT, AND RETUNING TIME FOR UPLINK TRANSMISSIONS
    58.
    发明申请
    MACHINE TYPE COMMUNICATION (MTC) CONFIGURATION, INTERFERENCE MANAGEMENT, AND RETUNING TIME FOR UPLINK TRANSMISSIONS 审中-公开
    机器类型通信(MTC)上传传输的配置,干扰管理和恢复时间

    公开(公告)号:US20170033843A1

    公开(公告)日:2017-02-02

    申请号:US15202901

    申请日:2016-07-06

    Abstract: Certain aspects of the present disclosure generally relate to wireless communications, and more specifically increasing user capacity through a frame structure which supports enhanced Machine Type Communication (eMTC) UL multi-user multiplexing. For example, a User Equipment (UE) identifies at least one narrowband region within a wider system bandwidth. The UE receives signaling, from a base station, indicating a sub-region of the narrowband region assigned to the UE for transmitting symbols of a physical uplink channel that are multiplexed with symbols transmitted by one or more other UEs in the narrowband region. The UE transmits the physical uplink channel in the assigned sub-region. Similar techniques are also provided that may be applied to DL multi-user multiplexing.

    Abstract translation: 本公开的某些方面通常涉及无线通信,并且更具体地涉及通过支持增强的机器类型通信(eMTC)UL多用户复用的帧结构增加用户容量。 例如,用户设备(UE)识别更宽系统带宽内的至少一个窄带区域。 UE从基站接收指示分配给UE的用于发送与窄带区域中的一个或多个其他UE发送的符号复用的物理上行链路信道的符号的窄带区域的子区域的信令。 UE在所分配的子区域中发送物理上行链路信道。 还提供了可以应用于DL多用户复用的类似技术。

    DOWNLINK AND UPLINK CHANNEL WITH LOW LATENCY
    60.
    发明申请
    DOWNLINK AND UPLINK CHANNEL WITH LOW LATENCY 审中-公开
    DOWNLINK和UPLINK频道低延迟

    公开(公告)号:US20160100395A1

    公开(公告)日:2016-04-07

    申请号:US14866465

    申请日:2015-09-25

    Abstract: Certain aspects of the present disclosure provide techniques that may be used to help enable low latency communications between a user equipment (UE) and a base station (BS) using quick uplink channels that enable a reduced transmission time interval (TTI). Additionally, certain aspects of the present disclosure provide techniques for managing communications in a wireless communication system, for example, by using enhanced downlink control channels.

    Abstract translation: 本公开的某些方面提供了可用于帮助使用能够减少传输时间间隔(TTI)的快速上行链路信道来实现用户设备(UE)和基站(BS)之间的低等待时间通信的技术。 此外,本公开的某些方面提供了用于管理无线通信系统中的通信的技术,例如通过使用增强的下行链路控制信道。

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