公开(公告)号：USRE47486E1

公开(公告)日：2019-07-02

申请号：US14261197

申请日：2014-04-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jianzhong Zhang ,  Joonyoung Cho ,  Zhouyue Pi ,  Juho Lee ,  Aris Papasakellariou ,  Farooq Khan

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04L1/16

Abstract: Methods and apparatus for remapping and regrouping transmission resources in a wireless communication system. First, a set of new permutation algorithms based on Galois field operation is proposed. Then the proposed algorithms and the known Pruned Bit Reversal Ordering (PBRO) algorithm are applied to several of various resource mapping schemes, including slot or symbol level Orthogonal Cover (OC)/Cyclic Shift (CS) mapping, cell-specific slot-level and symbol-level CS hopping patterns, and subframe and slot level base sequence hopping patterns.

公开(公告)号：US09521019B2

公开(公告)日：2016-12-13

申请号：US13663809

申请日：2012-10-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Farooq Khan ,  Zhouyue Pi

IPC: H04L25/03

CPC classification number: H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802

Abstract: A method for transmitting control information by transmitting a reference signal from a first transceiver to a second transceiver, in response to the reception of the reference signal, determining at the second transceiver a plurality of control channel elements based upon the received reference signal, jointly encoding the plurality of control channel elements at the second transceiver to generate a control signal, and transmitting the control signal from the second transceiver to the first transceiver.

公开(公告)号：US09496988B2

公开(公告)日：2016-11-15

申请号：US13711361

申请日：2012-12-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Farooq Khan ,  Cornelius Van Rensburg

IPC: H04L1/16 ,  H04B7/04 ,  H04B7/06 ,  H04L1/06 ,  H04L1/00 ,  H04L1/18 ,  H04W28/18

CPC classification number: H04L1/1657 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0689 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/06 ,  H04L1/1812 ,  H04L1/1835 ,  H04L1/1887 ,  H04W28/18

Abstract: A base station for use in a wireless network, wherein the base station transmits in a downlink to a plurality of subscriber stations using a plurality of antennas according to a multiple input, multiple-output (MIMO) protocol. During a first downlink subframe, the base station operates in single-user MIMO mode in which the base station transmits a first data subpacket to a first subscriber station using a first antenna and transmits a second data subpacket to the first subscriber station using a second antenna. During a second downlink subframe following the first downlink subframe, the base station operates in multi-user MIMO mode in which the base station transmits a third data subpacket to the first subscriber station using the first antenna and transmits a fourth data subpacket to a second subscriber station using the second antenna.

Abstract translation: 一种用于无线网络的基站，其中所述基站根据多输入多输出（MIMO）协议使用多个天线在下行链路中向多个用户台发送。 在第一下行链路子帧期间，基站以单用户MIMO模式操作，其中基站使用第一天线向第一用户站发送第一数据子分组，并使用第二天线向第一用户站发送第二数据子分组 。 在第一下行链路子帧之后的第二下行链路子帧期间，基站以多用户MIMO模式操作，其中基站使用第一天线向第一用户站发送第三数据子分组，并将第四数据子分组发送到第二用户 站使用第二个天线。

公开(公告)号：US09444534B2

公开(公告)日：2016-09-13

申请号：US13751869

申请日：2013-01-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Farooq Khan ,  Sridhar Rajagopal ,  Zhouyue Pi ,  Shadi Abu-Surra

IPC: H04L27/00 ,  H04B7/04 ,  H04B7/06 ,  H01Q3/26 ,  H01Q21/24

CPC classification number: H04B7/0456 ,  H01Q3/26 ,  H01Q21/245 ,  H04B7/0408 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0697

Abstract: A system is configured to perform Spatial Division Multiple Access. The system includes at least one transmitter or receiver capable of polarization alignment. The transmitter includes a baseband precoder configured to precode a signal, an array of sub-array antennas and a plurality of radio frequency (RF) chains. Each RF chain is coupled to a respective antenna sub-array of the array of antennas. The transmitter is configured to perform a method that includes precoding, by a baseband precoder, a signal for spatial division multiple access (SDMA). The method also includes applying, by each of the plurality of radio frequency (RF) chains, a phase shift and beamforming weight to the signal and transmitting the phase shifted and weighted signal by an array of sub-array antennas.

Abstract translation: 系统被配置为执行空间分多址。 该系统包括能够进行极化对准的至少一个发射器或接收器。 发射机包括被配置为对信号进行预编码的基带预编码器，子阵列天线阵列和多个射频（RF）链。 每个RF链耦合到天线阵列的相应天线子阵列。 发射机被配置为执行包括由基带预编码器预编码用于空分多址（SDMA）的信号的方法。 该方法还包括将多个射频（RF）链中的每一个应用于信号的相移和波束形成权重，并通过子阵列天线的阵列传输相移和加权的信号。

公开(公告)号：US20150288493A1

公开(公告)日：2015-10-08

申请号：US14742477

申请日：2015-06-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Zhouyue Pi ,  Farooq Khan

IPC: H04L5/00

CPC classification number: H04L5/0026 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0046 ,  H04L5/0094 ,  H04L27/2602

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.

Abstract translation: 时域子帧中的传输资源在时域和频域被划分为多个相等持续时间的资源元素，将多个资源元素分离成多个资源区域，调制要发送的信息，以产生一系列 调制符号在调制符号被映射到多个资源区域中的多个资源元素中，并且通过多个天线使用各自对应的资源元素将调制符号发送到接收机。 至少一个资源区域中的调制符号的映射与在时域子帧中承载的某个控制信道信息无关，并且至少另一个资源区域中的调制符号的映射取决于该特定的控制信道信息 。

公开(公告)号：US09113419B2

公开(公告)日：2015-08-18

申请号：US13966102

申请日：2013-08-13

Applicant: Samsung Electronics Co., LTD

Inventor： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan

IPC: H04W72/04 ,  H04W52/14 ,  H04W52/16 ,  H04W52/32 ,  H04W52/34

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。 另外，建立了多个开销信号与多个参考信号（RS）开销比“RS”和多个T2P计算方法之间的映射方案。 对于某些OFDM符号的用户特定T2P比PB，k / PRS，RS开销比和RS以及从多个T2P计算方法中选择的计算方法被分配给无线终端。 然后，根据映射方案选择对应于所分配的RS开销比＆amp; RS和分配的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。

公开(公告)号：US20140241289A1

公开(公告)日：2014-08-28

申请号：US14271065

申请日：2014-05-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Farooq Khan

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0091 ,  H04L27/261 ,  H04L27/2626 ,  H04L27/2647 ,  H04W24/08

Abstract: A subscriber station for use in a wireless network capable of communicating according to a multicarrier protocol determines a total average signal level across N subbands within a channel, where each subband comprises a plurality of subcarriers. The subscriber station also determines a first average signal level within a first subband. The subscriber station then transmits a channel quality indicator (CQI) feedback message to the wireless network. The CQI feedback message comprises a first data indicating the total average signal level across the N subbands and a second data indicating the first average signal level within the one subband. The first data may indicate the total average signal level as an absolute value and the second data may indicate the first average signal level relative to the total average signal level using one of two or more unequal quantization levels.

Abstract translation: 用于能够根据多载波协议进行通信的无线网络中的用户站确定跨越信道内的N个子带的总平均信号电平，其中每个子带包括多个子载波。 用户站还确定第一子带内的第一平均信号电平。 用户站然后向无线网络发送信道质量指示符（CQI）反馈消息。 CQI反馈消息包括指示跨越N个子带的总平均信号电平的第一数据和指示一个子带内的第一平均信号电平的第二数据。 第一数据可以将总平均信号电平指示为绝对值，并且第二数据可以使用两个或更多个不等量化级别之一来指示相对于总平均信号电平的第一平均信号电平。

公开(公告)号：US20140133409A1

公开(公告)日：2014-05-15

申请号：US14021993

申请日：2013-09-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Farooq Khan ,  Zhouyue Pi

IPC: H04L1/18

CPC classification number: H04L1/1812 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0617 ,  H04L1/0002 ,  H04L1/06 ,  H04L1/08 ,  H04L1/1803 ,  H04L1/1822 ,  H04L1/1861 ,  H04L1/1867 ,  H04L1/1896

Abstract: Asynchronous Hybrid Automatic Repeat reQuest (ARQ) process identities are transmitted in a wireless communication system. A linking scheme is established between at least two sets of process identities of two respective corresponding codewords. When a first process identity is selected from among a first set of process identities of a first codeword, a second process identity may be derived in dependence upon the first process identity and the established linking scheme. Finally, a first packet from the first codeword is transmitted using a first transmission channel indicated by the first process identity, and a second packet is transmitted from the second codeword using a second transmission channel indicated by the second process identity. In addition, a control message including only the first process identity is transmitted.

Abstract translation: 在无线通信系统中发送异步混合自动重传请求（ARQ）进程标识。 在两个相应的对应码字的至少两组进程标识之间建立链接方案。 当从第一代码字的第一组进程标识中选择第一进程标识时，可以依赖于第一进程标识和建立的链接方案来导出第二进程标识。 最后，使用由第一进程标识指示的第一传输信道来发送来自第一码字的第一分组，并且使用由第二进程标识指示的第二传输信道从第二代码字发送第二分组。 此外，发送仅包括第一进程标识的控制消息。

公开(公告)号：US20140072061A1

公开(公告)日：2014-03-13

申请号：US14078204

申请日：2013-11-12

Applicant: Samsung Electronics Co., LTD

Inventor： Farooq Khan

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2601 ,  H04B7/0671 ,  H04B7/0684 ,  H04B7/12 ,  H04L5/0048 ,  H04L25/022 ,  H04L25/0228 ,  H04L25/03955 ,  H04L27/261 ,  H04L27/2647

Abstract: A method of controlling downlink transmissions to a subscriber station capable of communicating with a base station of an orthogonal frequency division multiplexing (OFDM) network. The method comprises the steps of: receiving a first pilot signal from a first base station antenna; receiving a second pilot signal from a second base station antenna; and estimating the channel between the base station and subscriber station based on the received first and second pilot signals. The method also comprises determining a set of OFDM symbol processing parameters based on the step of estimating the channel and transmitting the OFDM symbol processing parameters to the base station. The base station uses the OFDM symbol processing parameters to control the relative gains and the relative delays of OFDM symbols transmitted from the first and second antennas.

Abstract translation: 控制能够与正交频分复用（OFDM）网络的基站通信的用户站的下行链路传输的方法。 该方法包括以下步骤：从第一基站天线接收第一导频信号; 从第二基站天线接收第二导频信号; 以及基于所接收的第一和第二导频信号来估计所述基站和所述用户站之间的信道。 该方法还包括基于估计信道并将OFDM符号处理参数发送到基站的步骤来确定一组OFDM符号处理参数。 基站使用OFDM符号处理参数来控制从第一和第二天线发送的OFDM符号的相对增益和相对延迟。

公开(公告)号：US20130155847A1

公开(公告)日：2013-06-20

申请号：US13712393

申请日：2012-12-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ying Li ,  Zhouyue Pi ,  Farooq Khan

IPC: H04W24/04

CPC classification number: H04W24/04 ,  H04L1/20 ,  H04W76/10 ,  H04W88/02 ,  H04W88/08

Abstract: A network node in a wireless network performs a method for enhancing reliability in wireless communication. The method includes determining, at a first network node, that a current link with a second network node is broken. The method also includes attempting, at the first network node, to recover the current link. The method further includes, upon a determination that the current link is not recoverable, establishing, at the first network node, a new link with the second network node according to one of a plurality of switching rules, the switching rules ordered according to a priority among the switching rules.

Abstract translation: 无线网络中的网络节点执行用于增强无线通信中的可靠性的方法。 该方法包括在第一网络节点处确定与第二网络节点的当前链路被破坏。 该方法还包括在第一网络节点尝试恢复当前链路。 该方法还包括：当确定当前链路不可恢复时，根据多个交换规则之一在第一网络节点建立与第二网络节点的新链路，根据优先级排序的交换规则 在切换规则中。