Wireless Communication via Combined Channel Training and Physical Layer Header Signaling
    31.
    发明申请
    Wireless Communication via Combined Channel Training and Physical Layer Header Signaling 审中-公开
    通过组合信道训练和物理层报头信令进行无线通信

    公开(公告)号:US20160066324A1

    公开(公告)日:2016-03-03

    申请号:US14583253

    申请日:2014-12-26

    摘要: Embodiments herein relate to wireless communication using combined channel training and physical layer header (SIG) signaling. Devices that comply with the 802.11 ax or High Efficiency WLAN (HEW) standard may generate and transmit packets that include such combined information. The combined information may be beamformed to a receiver device via an OFDM signal, which may be decoded by the receiver device to obtain subsequent data included in the signal. For example, initial training symbols associated with channel training subcarriers in the signal may be detected and used to perform a rough estimate of the channel. The rough estimate may thereafter be refined using data symbols detected from adjacent data subcarriers using the channel training symbols. In this way, data subcarriers may also be used to determine a channel response along with channel training subcarriers. Channel training information may be transmitted with data, such as user-specific information, in a single symbol.

    摘要翻译: 本文的实施例涉及使用组合信道训练和物理层报头(SIG)信令的无线通信。 符合802.11 ax或高效WLAN(HEW)标准的设备可能会生成并传输包含这些组合信息的数据包。 组合的信息可以经由OFDM信号被波束形成到接收机设备,OFDM信号可以被接收机设备解码以获得包括在信号中的后续数据。 例如,可以检测与信号中的信道训练子载波相关联的初始训练符号,并用于执行信道的粗略估计。 之后可以使用使用信道训练符号从相邻数据子载波检测的数据符号来粗略估计。 以这种方式,数据副载波也可以用于确定与信道训练子载波一起的信道响应。 信道训练信息可以用单个符号中的诸如用户特定信息的数据发送。

    PDSCH RESOURCE ELEMENT MAPPING FOR THREE-CELL JOINT TRANSMISSION
    32.
    发明申请
    PDSCH RESOURCE ELEMENT MAPPING FOR THREE-CELL JOINT TRANSMISSION 有权
    用于三节点传输的PDSCH资源元素映射

    公开(公告)号:US20140177541A1

    公开(公告)日:2014-06-26

    申请号:US13725369

    申请日:2012-12-21

    IPC分类号: H04W72/08

    摘要: A PDSCH resource element mapping method is used for joint transmissions. The method solves a problem of colliding resource elements in joint transmissions, due to interference caused when PDSCH resource elements are transmitted in the resource block of one cell and cell-specific reference signals (CRSs) are transmitted in the same location of the resource block of an adjacent cell. The method is particularly beneficial for coordinated multipoint (CoMP) transmissions. The PDSCH resource element mapping method employs one of three schemes for transmitting the collided resource elements, with minimal interference. In the first scheme, one PDSCH symbol is transmitted over three consecutive CRS-collided PDSCH resource elements. In the second scheme, two PDSCH symbols are transmitted over three consecutive CRS-collided PDSCH resource elements. In a third scheme, CRS-collided resource elements are transmitted using a lower modulation order than is specified by the modulation and coding scheme.

    摘要翻译: 用于联合传输的PDSCH资源元素映射方法。 该方法解决了由于在一个小区的资源块中发送PDSCH资源元素时引起的干扰,在联合传输中冲突资源元素的问题,并且在资源块的相同位置发送小区特定参考信号(CRS) 相邻单元格。 该方法对协同多点(CoMP)传输特别有利。 PDSCH资源元素映射方法采用三种方案之一,以最小的干扰来发送冲突的资源元素。 在第一方案中,通过三个连续的CRS冲突的PDSCH资源元素发送一个PDSCH符号。 在第二方案中,通过三个连续的CRS冲突的PDSCH资源元素发送两个PDSCH符号。 在第三方案中,CRS冲突的资源元素使用比由调制和编码方案指定的更低的调制阶数来发送。

    On the definition of the resource block in OFDMA/UL MUMIMO in HEW
    38.
    发明授权
    On the definition of the resource block in OFDMA/UL MUMIMO in HEW 有权
    关于HEW中OFDMA / UL MUMIMO中资源块的定义

    公开(公告)号:US09455810B2

    公开(公告)日:2016-09-27

    申请号:US14497688

    申请日:2014-09-26

    IPC分类号: H04Q7/00 H04L5/00

    摘要: Techniques for resource block allocation in a multi-user MIMO High Efficiency WLAN system are provided. Specifically, teachings that when taken alone or together, provide a device or a group of devices with an improved resource allocation for the reduction of usable tone waste, are presented. The present disclosure includes a system that provides a user with a technique allocating data tones prior to the encapsulation unit or overhead tones on a resource block unit. Further, the total allocated bandwidth can be reduced prior resource allocation to overcome modulation and coding scheme downgrading caused by severe puncturing. Alternatively, only band edge basic resource blocks are reduced to account for overhead tones which largely reside on band edges.

    摘要翻译: 提供了多用户MIMO高效WLAN系统中的资源块分配技术。 具体地说,当单独或一起采取提供具有改进的资源分配的设备或一组设备以减少可用的音调浪费时的教导。 本公开包括向用户提供在资源块单元之前在封装单元或开销音调之前分配数据音调的技术的系统。 此外,可以在先前的资源分配之前减少总分配带宽,以克服由严重穿孔引起的调制和编码方案降级。 或者,仅减少频带边缘基本资源块以考虑大部分驻留在频带边缘上的开销音调。

    EVOLVED NODE-B, USER EQUIPMENT, AND METHODS FOR CHANNEL QUALITY INDICATOR (CQI) FEEDBACK
    39.
    发明申请
    EVOLVED NODE-B, USER EQUIPMENT, AND METHODS FOR CHANNEL QUALITY INDICATOR (CQI) FEEDBACK 有权
    演进的节点B,用户设备和信道质量指示符(CQI)反馈方法

    公开(公告)号:US20160142123A1

    公开(公告)日:2016-05-19

    申请号:US14670692

    申请日:2015-03-27

    IPC分类号: H04B7/06 H04B7/04

    摘要: Embodiments of User Equipment (UE), an Evolved Node-B (eNB), and methods for channel quality indicator (CQI) feedback are disclosed herein. An aperiodic CQI type parameter received at the UE may indicate a CQI type for use in a determination of an aperiodic CQI based on signals received from the eNB. Channel-state information reference signals (CSI-RS) may be used when single-user multiple-input multiple-output (SU-MIMO) signals are received. Physical downlink shared channel (PDSCH) blocks may be used when multi-user multiple-input multiple-output (MU-MIMO) signals are received. The aperiodic CQI may be transmitted to the eNB as part of an aperiodic CQI measurement report. In addition, periodic CQI measurement reports may also be transmitted to the eNB and may include periodic CQIs that are based on CSI-RS received at the UE.

    摘要翻译: 本文公开了用户设备(UE),演进节点B(eNB)以及信道质量指示符(CQI)反馈的方法的实施例。 在UE处接收到的非周期性CQI类型参数可以基于从eNB接收的信号来指示用于确定非周期性CQI的CQI类型。 当接收到单用户多输入多输出(SU-MIMO)信号时,可以使用信道状态信息参考信号(CSI-RS)。 当接收到多用户多输入多输出(MU-MIMO)信号时,可以使用物理下行链路共享信道(PDSCH)块。 作为非周期性CQI测量报告的一部分,非周期性CQI可以被发送到eNB。 此外,也可以向eNB发送周期性CQI测量报告,并且可以包括基于在UE处接收的CSI-RS的周期性CQI。