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    Methods and apparatus for mapping modulation symbols to resources in OFDM systems
    31.
    发明授权
    Methods and apparatus for mapping modulation symbols to resources in OFDM systems 有权

    公开(公告)号：US10148394B2

    公开(公告)日：2018-12-04

    申请号：US14742477

    申请日：2015-06-17

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Zhouyue Pi ,  Farooq Khan

    IPC: H04L5/00 ,  H04L27/26

    Abstract: A transmission resource in a time domain subframe is divided into a plurality of equal duration resource elements in a time and frequency domain, the plurality of resource elements are segregated into a plurality of resource regions, information to be transmitted is modulated to generate a sequence of modulation symbols at a transmitter, the sequence of modulation symbols is mapped into the plurality of resource elements in the plurality of resource regions, and the modulation symbols are transmitted via a plurality of antennas using the respective corresponding resource elements to a receiver. The mapping of the modulation symbols in at least one resource region is independent of a certain control channel information that is carried in the time domain subframe, and the mapping of the modulation symbols in at least another resource region is dependent upon that certain control channel information.

    Hierarchical channel sounding and channel state information feedback in massive MIMO systems
    34.
    发明授权
    Hierarchical channel sounding and channel state information feedback in massive MIMO systems 有权
    大规模MIMO系统中的分层信道探测和信道状态信息反馈

    公开(公告)号：US09414371B2

    公开(公告)日：2016-08-09

    申请号：US13770590

    申请日：2013-02-19

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Zhouyue Pi ,  Ying Li ,  Kaushik Josiam

    IPC: H04L5/00 ,  H04L25/02 ,  H04L1/00 ,  H04B7/06 ,  H04W72/04

    CPC classification number: H04W72/042 ,  H04B7/0626 ,  H04L1/0026 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0057 ,  H04L25/0204 ,  H04L25/0226

    Abstract: Time, frequency and spatial processing parameters for communications between a base station and a mobile station are selected by transmitting synchronization signals in multiple slices of a wireless transmission sector for the base station, and receiving feedback from the mobile station of at least one preferred slice of the multiple slices. In response to selection of one of the slices as an active slice for communications between the base station and the mobile station, reference signals are transmitted in the selected active slice using a corresponding selected precoder and/or codebook. The mobile station estimates and feeds back channel state information (CSI) based on those reference signals, and the CSI is then employed to determine communication parameters for communications between the base station and mobile station that are specific to the mobile station.

    Abstract translation: 通过在基站的无线传输扇区的多个片段中发送同步信号来选择用于基站和移动台之间的通信的时间，频率和空间处理参数，以及从移动站接收至少一个优选切片的反馈 多片。 响应于选择一个切片作为用于基站和移动台之间的通信的活动切片，使用对应的选择的预编码器和/或码本在所选择的活动切片中发送参考信号。 移动站基于这些参考信号来估计并反馈信道状态信息（CSI），然后使用CSI来确定基站和移动站之间用于移动站特有的通信的通信参数。

    Apparatus and method for discontinuous receive in communication systems with large number of antennas
    36.
    发明授权
    Apparatus and method for discontinuous receive in communication systems with large number of antennas 有权
    具有大量天线的通信系统中不连续接收的装置和方法

    公开(公告)号：US09204395B2

    公开(公告)日：2015-12-01

    申请号：US14046664

    申请日：2013-10-04

    Applicant: Samsung Electronics Co., LTD

    Inventor： Ying Li ,  Rakesh Taori ,  Zhouyue Pi ,  Sudhir Ramakrishna

    IPC: H04W52/02 ,  H04W84/12

    CPC classification number: H04W52/0229 ,  H04W52/02 ,  H04W84/12 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/24

    Abstract: A user equipment (UE) performs a method for supporting discontinuous receive (DRX) in a wireless network. The method includes waking up at a wake up time associated with a beginning of a DRX cycle, the DRX cycle comprising a plurality of subframes. The method also includes determining whether to perform receive beam training before a beginning of a time period for downlink communication. The method further includes receiving data during the time period for downlink communication.

    Abstract translation: 用户设备（UE）执行支持无线网络中的不连续接收（DRX）的方法。 该方法包括在与DRX周期的开始相关联的唤醒时间唤醒，DRX周期包括多个子帧。 该方法还包括确定在下行链路通信的时间段开始之前是否执行接收波束训练。 该方法还包括在下行链路通信的时间段期间接收数据。

    Apparatus and method for wireless communication networks with energy harvesting
    37.
    发明授权
    Apparatus and method for wireless communication networks with energy harvesting 有权
    能量采集无线通信网络的装置和方法

    公开(公告)号：US09185646B2

    公开(公告)日：2015-11-10

    申请号：US13917476

    申请日：2013-06-13

    Applicant: Samsung Electronics Co., LTD

    Inventor： Ying Li ,  Harpreet Singh Dhillon ,  Zhouyue Pi ,  Pavan Nuggehalli

    IPC: H04W52/02

    CPC classification number: H04W52/0206 ,  H04W52/0277 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146

    Abstract: A base station transmits energy related information to a mobile station, wherein the energy related information is related to at least one of an energy harvester module and an energy storage module coupled to the base station. The energy related information includes: an energy level and a maximum storage capacity of the energy storage module; an energy harvest rate and energy consumption rate. The base station and the mobile station perform energy trade off, where when the serving base station has an energy level below a threshold, the mobile station uses certain configuration to send information to the serving base station where the configuration can use more resources, such as RF chains, thereby increasing energy consumption of the mobile station while enabling the base station to conserve energy.

    Abstract translation: 基站将能量相关信息发送到移动站，其中能量相关信息与能量收集器模块和耦合到基站的能量存储模块中的至少一个有关。 能量相关信息包括：能量储存模块的能级和最大存储容量; 能源收获率和能源消耗率。 基站和移动台执行能量权衡，其中当服务基站具有低于阈值的能级时，移动台使用某种配置向服务基站发送信息，其中配置可以使用更多的资源，诸如 RF链，从而增加移动台的能量消耗，同时使得基站能够节省能量。

    METHODS AND APPARATUS FOR DOWNLINK PDSCH POWER SETTING
    39.
    发明申请
    METHODS AND APPARATUS FOR DOWNLINK PDSCH POWER SETTING 有权
    用于下行链路PDSCH功率设置的方法和装置

    公开(公告)号：US20140010181A1

    公开(公告)日：2014-01-09

    申请号：US13966102

    申请日：2013-08-13

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan

    IPC: H04W52/14

    CPC classification number: H04W52/346 ,  H04W52/143 ,  H04W52/146 ,  H04W52/16 ,  H04W52/325 ,  H04W52/343 ,  H04W52/367 ,  H04W72/042

    Abstract: Methods and apparatus for transmitting power setting information in a downlink Physical Downlink Shared Channel (PDSCH) in a communication system. In this communication system, a plurality of methods for calculating traffic-to-pilot ratios (T2P) are established. In addition, a mapping scheme between a plurality of overhead signals and a plurality of reference signal (RS) overhead ratios, ηRS, and the plurality of T2P calculation methods is established. A user-specific T2P ratio PB, k/PRS for certain OFDM symbols, a RS overhead ratio ηRS and a calculation method selected from the plurality of T2P calculation methods are assigned to a wireless terminal. Then, an overhead signal corresponding to both of the assigned RS overhead ratio ηRS and the assigned T2P calculation method is selected in accordance with the mapping scheme and is transmitted to the wireless terminal. In addition, the user-specific traffic-to-pilot ratio PB, k/PRS is transmitted to the wireless terminal. The wireless terminal may calculate the traffic-to-pilot ratios across different transmission antennas and different OFDM symbols in dependence upon the received traffic-to-pilot ratio PB, k/PRS, and the RS overhead ratio and the T2P calculation method indicated by the RS overhead signal.

    Abstract translation: 在通信系统中的下行链路物理下行链路共享信道（PDSCH）中发送功率设定信息的方法和装置。 在该通信系统中，建立了用于计算业务导频比（T2P）的多种方法。 此外，建立了多个开销信号与多个参考信号（RS）开销比，etaRS和多个T2P计算方法之间的映射方案。 对于无线终端，分配用于特定OFDM符号的用户特定T2P比率PB，k / PRS，RS开销比率etaRS以及从多个T2P计算方法中选择的计算方法。 然后，根据映射方案选择对应于所分配的RS开销比etaRS和所分配的T2P计算方法的开销信号，并将其发送到无线终端。 此外，将用户特定的业务导频比PB，k / PRS发送到无线终端。 无线终端可以根据接收到的业务导频比PB，k / PRS和RS开销比和T2P计算方法，计算不同发射天线和不同OFDM符号之间的业务导频比 RS开销信号。

    UPLINK CHANNEL SOUNDING AND CHANNEL STATE INFORMATION ESTIMATION IN MOBILE COMMUNICATION SYSTEMS WITH MULTIPLE ANTENNAS
    40.
    发明申请
    UPLINK CHANNEL SOUNDING AND CHANNEL STATE INFORMATION ESTIMATION IN MOBILE COMMUNICATION SYSTEMS WITH MULTIPLE ANTENNAS 有权
    具有多个天线的移动通信系统中的上行信道声道和信道状态信息估计

    公开(公告)号：US20130322280A1

    公开(公告)日：2013-12-05

    申请号：US13908601

    申请日：2013-06-03

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Zhouyue Pi

    IPC: H04W72/04

    CPC classification number: H04W72/0413 ,  H04L1/0026 ,  H04W28/06 ,  H04W56/0005 ,  H04W56/0035 ,  H04W72/12 ,  H04W88/08

    Abstract: A system includes a base station configured to communicate with a plurality of mobile stations. The base station transmits downlink timing synchronization and establishes frequency synchronization with at least one of the plurality of mobile stations. The base station receives, from the mobile station, at least one of: coarse sounding reference signal (SRS), and fine SRS. The base processes at least one of the coarse SRS to enable tracking of the preferred uplink (UL) slice for uplink transmissions, and the fine SRS in order to resolve a short-term small-scale channel state information (CSI), estimate a CSI from at least one of the coarse SRS and fine SRS, and perform uplink scheduling and grant. The mobile station performs uplink scheduling request and uplink data communication.

    Abstract translation: 系统包括被配置为与多个移动站进行通信的基站。 基站发送下行链路定时同步，并与多个移动站中的至少一个建立频率同步。 基站从移动站接收粗略探测参考信号（SRS）和精细SRS中的至少一个。 基站处理粗略SRS中的至少一个以使得能够跟踪用于上行链路传输的优选上行链路（UL）切片，并且精细SRS以便解析短期小规模信道状态信息（CSI），估计CSI 从粗略SRS和精细SRS中的至少一个进行上行链路调度和授权。 移动台执行上行链路调度请求和上行链路数据通信。

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