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    DL backhaul control channel design for relays
    11.
    发明授权
    DL backhaul control channel design for relays 有权

    公开(公告)号：US11419036B2

    公开(公告)日：2022-08-16

    申请号：US16851461

    申请日：2020-04-17

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

    Inventor： Kalpendu R. Pasad ,  Sung-Hyuk Shin ,  Mihaela C. Beluri ,  Marian Rudolf ,  Pascal M. Adjakple ,  John W. Haim

    IPC: H04W40/22 ,  H04B7/155 ,  H04L5/00 ,  H04W72/04 ,  H04W88/04 ,  H04W84/04

    Abstract: Methods and apparatus are described for providing compatible mapping for backhaul control channels, frequency first mapping of control channel elements (CCEs) to avoid relay-physical control format indicator channel (R-PCFICH) and a tree based relay resource allocation to minimize the resource allocation map bits. Methods and apparatus (e.g., relay node (RN)/evolved Node-B (eNB)) for mapping of the Un downlink (DL) control signals, Un DL positive acknowledgement (ACK)/negative acknowledgement (NACK), and/or relay-physical downlink control channel (R-PDCCH) (or similar) in the eNB to RN (Un interface) DL direction are described. This includes time/frequency mapping of abovementioned control signals into resource blocks (RBs) of multimedia broadcast multicast services (MBMS) single frequency network (MBSFN)-reserved sub-frames in the RN cell and encoding procedures for these. Also described are methods and apparatus for optimizing signaling overheads by avoiding R-PCFICH and minimizing bits needs for resource allocation.

    DL backhaul control channel design for relays
    12.
    发明授权
    DL backhaul control channel design for relays 有权

    公开(公告)号：US10660011B2

    公开(公告)日：2020-05-19

    申请号：US15636823

    申请日：2017-06-29

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

    Inventor： Kalpendu R. Pasad ,  Sung-Hyuk Shin ,  Mihaela C. Beluri ,  Marian Rudolf ,  Pascal M. Adjakple ,  John W. Haim

    IPC: H04L5/00 ,  H04B7/155 ,  H04W40/22 ,  H04W88/04 ,  H04W72/04 ,  H04W84/04

    Abstract: Methods and apparatus are described for providing compatible mapping for backhaul control channels, frequency first mapping of control channel elements (CCEs) to avoid relay-physical control format indicator channel (R-PCFICH) and a tree based relay resource allocation to minimize the resource allocation map bits. Methods and apparatus (e.g., relay node (RN)/evolved Node-B (eNB)) for mapping of the Un downlink (DL) control signals, Un DL positive acknowledgement (ACK)/negative acknowledgement (NACK), and/or relay-physical downlink control channel (R-PDCCH) (or similar) in the eNB to RN (Un interface) DL direction are described. This includes time/frequency mapping of above-mentioned control signals into resource blocks (RBs) of multimedia broadcast multicast services (MBMS) single frequency network (MBSFN)-reserved sub-frames in the RN cell and encoding procedures for these. Also described are methods and apparatus for optimizing signaling overheads by avoiding R-PCFICH and minimizing bits needs for resource allocation.

    METHOD AND APPARATUS FOR IMPLEMENTING SPACE FREQUENCY BLOCK CODING IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING WIRELESS COMMUNICATION SYSTEM
    18.
    发明申请
    METHOD AND APPARATUS FOR IMPLEMENTING SPACE FREQUENCY BLOCK CODING IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING WIRELESS COMMUNICATION SYSTEM 审中-公开
    在正交频分多路无线通信系统中实现空间频率编码的方法与装置

    公开(公告)号：US20140010323A1

    公开(公告)日：2014-01-09

    申请号：US14021783

    申请日：2013-09-09

    Applicant: InterDigital Technology Corporation

    Inventor： Jaeyoung Kwak ,  Robert Lind Olesen ,  Aykut Bultan ,  Elad Zeira ,  Chang-Soo Koo ,  Fatih Ozluturk ,  Yuejin Huang ,  Kalpendu R. Pasad

    IPC: H04L27/156

    CPC classification number: H04L1/0606 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/066 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/006 ,  H04L27/156 ,  H04L27/2626 ,  H04L2027/0046 ,  Y02B70/30 ,  Y02D50/10

    Abstract: The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. The present invention is applicable to both a closed loop mode and an open loop mode. In the closed loop mode, power loading and eigen-beamforming are performed based on channel state information (CSI). A channel coded data stream is multiplexed into two or more data streams. Power loading is performed based on the CSI on each of the multiplexed data streams. SFBC encoding is performed on the data streams for each of the paired subcarriers. Then, eigen-beamforming is performed based on the CSI to distribute eigenbeams to multiple transmit antennas. The power loading may be performed on two or more SFBC encoding blocks or on each eigenmodes. Additionally, the power loading may be performed across subcarriers or subcarrier groups for weak eigenmodes.

    Abstract translation: 本发明涉及一种用于在正交频分复用（OFDM）无线通信系统中实现空间频率块编码（SFBC）的方法和装置。 本发明适用于闭环模式和开环模式。 在闭环模式中，基于信道状态信息（CSI）执行功率负载和特征波束形成。 信道编码数据流被多路复用成两个或多个数据流。 基于每个复用数据流上的CSI执行功率加载。 对每个配对子载波的数据流执行SFBC编码。 然后，基于CSI执行特征波束形成，以将本征束分布到多个发射天线。 功率加载可以在两个或更多个SFBC编码块上或在每个本征模上执行。 另外，对于弱本征模式，可以跨子载波或子载波组执行功率负载。

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