Low latency hybrid automatic repeat request (HARQ) feedback for wireless networks

    公开(公告)号:US10944515B2

    公开(公告)日:2021-03-09

    申请号:US16090204

    申请日:2016-04-01

    Abstract: An example implementation includes determining, by a user device, that the user device is a low-latency mode user device; receiving a downlink data block in downlink subframe n; determining a hybrid automatic repeat request (HARQ) feedback for the data block; determining, by the low-latency mode user device, an uplink subframe n+k at a HARQ feedback offset of k subframes from subframe n, and one or more uplink HARQ resources for the uplink subframe n+k reserved for the HARQ feedback from the low-latency mode user device; and transmitting, by the low-latency mode user device, the HARQ feedback via subframe n+k and the one or more uplink HARQ resources.

    Improving communication efficiency
    34.
    发明授权

    公开(公告)号:US10341064B2

    公开(公告)日:2019-07-02

    申请号:US15308152

    申请日:2014-05-08

    Abstract: There is provided a method for defining at least one channel reservation window the method comprising: setting length for each of the at least one channel reservation window such that each channel reservation window comprises a plurality of sub-frames; dividing the length of each channel reservation window into a transmission part and an idle part, wherein the idle part consists of one or more symbols in one sub-frame; maximizing, at a symbol level accuracy, the length of the transmission part such that a ratio between the length of the idle part and the length of the transmission part fulfills a predetermined criterion; and concatenating the transmission part and the idle part so as to form the channel reservation window.

    TRANSMISSION POWER CONTROL
    37.
    发明申请

    公开(公告)号:US20180007643A1

    公开(公告)日:2018-01-04

    申请号:US15544759

    申请日:2015-01-28

    Abstract: Apparatuses and methods for transmission power control are disclosed. A given transmission resource and a first transmission power are determined (202, 204) for transmission. Prior to transmitting on the given transmission resource it is determined (206) whether the resource is occupied or unoccupied. Upon detecting that the resource is occupied, a second, reduced transmission power is determined (210) such that a transmission using the second, reduced transmission power would not render the resource as occupied. The determination of the second transmission power is based at least partially on a predetermined maximum transmission power reduction value. Transmission (212) is done utilising the given transmission resource using the second transmission power according to the determination.

    Providing enhanced CSI coverage by reporting the same measure in multiple sub-frames
    39.
    发明授权
    Providing enhanced CSI coverage by reporting the same measure in multiple sub-frames 有权
    通过在多个子帧中报告相同的度量来提供增强的CSI覆盖

    公开(公告)号:US09414249B2

    公开(公告)日:2016-08-09

    申请号:US14352833

    申请日:2012-10-25

    Abstract: The application relates to channel state feedback reporting in wireless communication networks and in particular to modifications of the procedure for reporting CSI as specified by section 7.2 of 3GPP TS 36.213 V10.3.0. and the corresponding RRC protocol as specified by 3GPP TS 36.331 V10.2.0. The current cycle for CSI measurement and reporting is such that the UE performs separate CSI measurements for each report. However, the coverage area of CSI measurement reporting is lower than other uplink reporting such as e.g. ACK/NACK on PUCCH which supports subframe repetition, leading to an imbalance. Therefore, it is rather clear that it is highly beneficial to support coverage extension for CSI reports. The issue then arises as to how to realize the CSI coverage enhancement on top of existing/evolving CSI reporting framework. The application proposes to realize said CSI coverage enhancement by reporting (450) the same CSI report multiple times from the UE (110) to an eNB (220).

    Abstract translation: 该应用涉及无线通信网络中的信道状态反馈报告,特别是3GPP TS 36.213 V10.3.0的第7.2节规定的用于报告CSI的过程的修改。 以及由3GPP TS 36.331 V10.2.0规定的相应的RRC协议。 CSI测量和报告的当前周期使得UE针对每个报告执行单独的CSI测量。 然而,CSI测量报告的覆盖区域低于其他上行链路报告,例如。 支持子帧重复的PUCCH上的ACK / NACK,导致不平衡。 因此,很明显,支持CSI报告的覆盖范围是非常有益的。 然后出现了如何在现有/不断发展的CSI报告框架之上实现CSI覆盖增强的问题。 应用提出通过从UE(110)向eNB(220)多次报告(450)相同的CSI报告来实现所述CSI覆盖增强。

    MECHANISM FOR CONTROLLING A COMMUNICATION BY TERMINAL DEVICE
    40.
    发明申请
    MECHANISM FOR CONTROLLING A COMMUNICATION BY TERMINAL DEVICE 审中-公开
    用于控制终端设备通信的机制

    公开(公告)号:US20150282020A1

    公开(公告)日:2015-10-01

    申请号:US14438420

    申请日:2012-10-25

    Abstract: There is provided a mechanism for controlling a procedure for requesting resources for a communication in a communication network by a terminal device or UE. When the UE has selected a target cell from a plurality of communication cells, a message such as a resource request. A controller of a cell, such as an eNB, scans the reserved resources for receiving a message such as the resource request from a UE. The message is decoded by using identification information of the own cell and identification information of UEs being valid in the own cell. Then, it is determined whether the received message indicates as the target cell the own cell, and whether the UE is a known UE allocated to the own cell. Based on this determination, the message such as the resource request is processed or another cell is informed thereabout.

    Abstract translation: 提供了一种用于由终端设备或UE控制用于在通信网络中通信的资源的过程的机制。 当UE已经从多个通信小区中选择了目标小区时,会产生诸如资源请求的消息。 诸如eNB的小区的控制器扫描预留的资源以接收诸如来自UE的资源请求之类的消息。 通过使用自身小区的识别信息和在本小区中有效的UE的识别信息对消息进行解码。 然后,确定接收到的消息是否将自己的小区指示为目标小区,以及UE是否分配给自己的小区的已知UE。 基于该确定,处理诸如资源请求之类的消息或在其上通知另一个小区。

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