-
公开(公告)号：US09160494B2
公开(公告)日：2015-10-13
申请号：US13944318
申请日：2013-07-17
Applicant: Apple Inc.
Inventor： Hang Zhang , Peiying Zhu , Wen Tong
Abstract: Systems and apparatus for providing distributed Automatic Repeat Request (ARQ) in a wireless communication system are described herein. In one embodiment, a relay station interconnects a base station of the wireless communication system and one or more mobile stations. A first ARQ process is performed for a first connection between the base station and the relay station. A separate second ARQ process is performed for a second connection between the relay station and a mobile station. In this manner, rather than having end-to-end ARQ between the base station and the mobile station, a distributed ARQ process is provided.
Abstract translation: 本文描述了用于在无线通信系统中提供分布式自动重传请求（ARQ）的系统和装置。 在一个实施例中，中继站将无线通信系统的基站和一个或多个移动站互连。 对于基站和中继站之间的第一连接执行第一ARQ处理。 针对中继站和移动站之间的第二连接执行单独的第二ARQ处理。 以这种方式，不是在基站和移动台之间具有端对端ARQ，而是提供分布式ARQ过程。
-
公开(公告)号：US09136923B2
公开(公告)日：2015-09-15
申请号：US14551053
申请日：2014-11-23
Applicant: Apple Inc.
Inventor： Wen Tong , Hosein Nikopour , Amir Keyvam Khandani , Hua Xu , Ming Jia , Peiying Zhu , Dong-Sheng Yu
CPC classification number: H04B7/0478 , H04B7/0417 , H04B7/0456 , H04B7/0634 , H04B7/0639 , H04L69/04 , H04L69/14
Abstract: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets S1 for each codeword c1 of the codebook C. Each codeword subset S1 defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset S1 are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.
Abstract translation: 码本C被提供在MIMO发射机以及MIMO接收机中。 码本C将包括M个码字ci，其中i是每个码字ci的唯一码字索引。 每个码字定义了应用于MIMO信号的加权因子，并且可以对应于在从MIMO发射机的各个天线发送之前应用于MIMO信号的信道矩阵或向量。 本发明为码本C的每个码字c1创建码字子集S1。每个码字子集S1定义从码本C中的所有码字ci中选择的L个码字cj。码字子集S1中的码字cj是L个码字 在整个码本中与相应的码字ci最相关。
-
33.发明授权Communicating a feedback data structure containing information identifying coding to be applied on wirelessly communicated signaling 有权通信包含识别要应用于无线通信信令的编码的信息的反馈数据结构公开(公告)号：US09088317B2
公开(公告)日：2015-07-21
申请号：US13972095
申请日：2013-08-21
Applicant: Apple Inc.
Inventor： Kathiravetpillai Sivanesan , Peiying Zhu , Sang-Youb Kim , Lai King Tee , Junfeng Xiao
CPC classification number: H04B7/0417 , H04B7/0456 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04L25/0204 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802 , H04W72/06
Abstract: To perform wireless communications in a closed loop multiple input, multiple output (MIMO) system, a feedback data structure is communicated over a wireless channel between a first wireless node and a second wireless node, where the feedback data structure contains indicators identifying coding to be applied by the second wireless node on signaling communicated between the second wireless node and the first wireless node, where the information in the feedback data structure is based on wireless channel conditions detected at the first wireless node. The indicators identify different codings to be used for different corresponding bands in the wireless channel.
Abstract translation: 为了在闭环多输入多输出（MIMO）系统中执行无线通信，在第一无线节点和第二无线节点之间的无线信道上传送反馈数据结构，其中反馈数据结构包含识别编码的指示符 由第二无线节点应用于在第二无线节点和第一无线节点之间通信的信令，其中反馈数据结构中的信息基于在第一无线节点处检测到的无线信道条件。 这些指示符识别用于无线信道中的不同对应频带的不同编码。
-
34.发明申请Frame Structure for Allocating Radio Resources in a Cellular Wireless Network 审中-公开在蜂窝无线网络中分配无线电资源的帧结构公开(公告)号：US20150139180A1
公开(公告)日：2015-05-21
申请号：US14606577
申请日：2015-01-27
Applicant: Apple Inc.
Inventor： James Mark Naden , Peiying Zhu
CPC classification number: H04W16/12 , H04B7/15542 , H04B7/2606 , H04L5/0007 , H04L5/0041 , H04L5/0044 , H04L27/2627 , H04W72/04 , H04W72/0426 , H04W72/044 , H04W72/0446 , H04W72/0486 , H04W84/047
Abstract: The capacity of a cellular wireless system is increased by operation of base stations or base station sectors arranged to re-use radio resource elements that are used by neighbouring base stations or base station sectors, in conjunction with operation of relay stations, which are similarly arranged to re-use radio resource elements used by neighbouring relay stations, and where the radio resource elements re-used by the relay stations are different to those used by the base stations. The relay stations provide coverage, particularly in the areas at the boundaries between the areas of coverage of base stations that suffer from interference between signals transmitted from the respective base stations. In addition, the relay stations generally increase the average available carrier to interference ratio compared with a system in which base stations alone are deployed. The scheme for the allocation of radio resource elements ensures in particular that interference is avoided between signals transmitted from a base station and signals transmitted from a relay station in radio resource elements allocated to control data.
Abstract translation: 结合中继站的操作，蜂窝无线系统的容量通过与被相邻基站或基站扇区使用的无线电资源元素重新使用的基站或基站扇区的操作而增加，中继站的操作类似地布置 重新使用由相邻中继站使用的无线电资源元件，以及由中继站重新使用的无线电资源元件与基站使用的无线电资源元件不同。 中继站提供覆盖，特别是在各基站发送的信号之间的基站覆盖区域之间的边界区域。 此外，与仅部署基站的系统相比，中继站通常增加平均可用的载波干扰比。 用于分配无线电资源元素的方案特别地确保在从分配给控制数据的无线电资源元素中发送的基站和从中继站发送的信号之间避免干扰。
-
公开(公告)号：US20150103938A1
公开(公告)日：2015-04-16
申请号：US14551053
申请日：2014-11-23
Applicant: Apple Inc.
Inventor： Wen Tong , Hosein Nikopourdeilami, IV , Amir Keyvam Khandani , Hua Xu , Ming Jia , Peiying Zhu , Dong-Sheng Yu
IPC: H04B7/04
CPC classification number: H04B7/0478 , H04B7/0417 , H04B7/0456 , H04B7/0634 , H04B7/0639 , H04L69/04 , H04L69/14
Abstract: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets S1 for each codeword c1 of the codebook C. Each codeword subset S1 defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset S1 are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.
Abstract translation: 码本C被提供在MIMO发射机以及MIMO接收机中。 码本C将包括M个码字ci，其中i是每个码字ci的唯一码字索引。 每个码字定义了应用于MIMO信号的加权因子，并且可以对应于在从MIMO发射机的各个天线发送之前应用于MIMO信号的信道矩阵或向量。 本发明为码本C的每个码字c1创建码字子集S1。每个码字子集S1定义从码本C中的所有码字ci中选择的L个码字cj。码字子集S1中的码字cj是L个码字 在整个码本中与相应的码字ci最相关。
-
Patent Agency Ranking
公开(公告)号：US20150016394A1
公开(公告)日：2015-01-15
申请号：US14499316
申请日：2014-09-29
Applicant: Apple Inc.
Inventor： Jianglei Ma , Ming Jia , Hua Xu , Wen Tong , Peiying Zhu , Moussa Abdi
CPC classification number: H04B7/0452 , H04B7/0413 , H04J13/18 , H04J2013/165 , H04L1/0625 , H04L5/001 , H04L5/0026 , H04L5/0032 , H04L5/0048 , H04L5/005 , H04L5/0051 , H04L25/0226 , H04L25/0228 , H04L27/2613 , H04W72/04 , H04W72/044 , H04W88/08
Abstract: The present invention employs a pilot scheme for frequency division multiple access (FDM) communication systems, such as single carrier FDM communication systems. A given transmit time interval will include numerous traffic symbols and two or more short pilot symbols, which are spaced apart from one another by at least one traffic symbol and will have a Fourier transform length that is less than the Fourier transform length of any given traffic symbol. Multiple transmitters will generate pilot information and modulate the pilot information onto sub-carriers of the short pilot symbols in an orthogonal manner. Each transmitter may use different sub-carriers within the time and frequency domain, which is encompassed by the short pilot symbols within the transmit time interval. Alternatively, each transmitter may uniquely encode the pilot information using a unique code division multiplexed code and modulate the encoded pilot information onto common sub-carriers of the short pilot symbols.
-
37.发明授权OFDM system and method employing OFDM symbols with known or information-containing prefixes 有权OFDM系统和采用具有已知或含有信息的前缀的OFDM符号的方法公开(公告)号：US08902727B2
公开(公告)日：2014-12-02
申请号：US13847167
申请日：2013-03-19
Applicant: Apple Inc.
Inventor： Shiquan Wu , Wen Tong , Claude Royer , Peiying Zhu
CPC classification number: H04L27/265 , H04J11/0023 , H04L27/2605 , H04L27/2626 , H04L27/2691 , H04L27/2695
Abstract: Systems and methods for transmitting and receiving OFDM symbols are provided which enable the otherwise wasted transmission time normally used as a prefix for each OFDM symbol to contain useful information. At the receiver, the received signal is processed to convert received OFDM symbols from a linear convolution with the channel to a cyclic convolution.
Abstract translation: 提供用于发送和接收OFDM符号的系统和方法，其使得能够将通常用作每个OFDM符号的前缀的否则浪费的传输时间包含有用信息。 在接收机处理接收到的信号以将接收到的OFDM符号从与该信道的线性卷积转换为循环卷积。
-
38.发明申请公开(公告)号：US20130343339A1
公开(公告)日：2013-12-26
申请号：US13972095
申请日：2013-08-21
Applicant: Apple Inc.
Inventor： Kathiravetpillai Sivanesan , Peiying Zhu , Sang-Youb Kim , Lai King Tee , Junfeng Xiao
IPC: H04B7/04
CPC classification number: H04B7/0417 , H04B7/0456 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04L25/0204 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802 , H04W72/06
Abstract: To perform wireless communications in a closed loop multiple input, multiple output (MIMO) system, a feedback data structure is communicated over a wireless channel between a first wireless node and a second wireless node, where the feedback data structure contains indicators identifying coding to be applied by the second wireless node on signaling communicated between the second wireless node and the first wireless node, where the information in the feedback data structure is based on wireless channel conditions detected at the first wireless node. The indicators identify different codings to be used for different corresponding bands in the wireless channel.
-
公开(公告)号：US20130301518A1
公开(公告)日：2013-11-14
申请号：US13944318
申请日：2013-07-17
Applicant: Apple Inc.
Inventor： Hang Zhang , Peiying Zhu , Wen Tong
IPC: H04W40/22
Abstract: Systems and apparatuss for providing distributed Automatic Repeat Request (ARQ) in a wireless communication system are described herein. In one embodiment, a relay station interconnects a base station of the wireless communication system and one or more mobile stations. A first ARQ process is performed for a first connection between the base station and the relay station. A separate second ARQ process is performed for a second connection between the relay station and a mobile station. In this manner, rather than having end-to-end ARQ between the base station and the mobile station, a distributed ARQ process is provided.
Abstract translation: 在这里描述了用于在无线通信系统中提供分布式自动重传请求（ARQ）的系统和装置。 在一个实施例中，中继站将无线通信系统的基站和一个或多个移动站互连。 对于基站和中继站之间的第一连接执行第一ARQ处理。 针对中继站和移动站之间的第二连接执行单独的第二ARQ处理。 以这种方式，不是在基站和移动台之间具有端对端ARQ，而是提供分布式ARQ过程。
-
公开(公告)号：US08559994B2
公开(公告)日：2013-10-15
申请号：US13735360
申请日：2013-01-07
Applicant: Apple Inc.
Inventor： Ming Jia , Jianglei Ma , Jianming Wu , Peiying Zhu , Wen Tong
IPC: H04B7/00
CPC classification number: H04W72/082 , H04B7/0417 , H04B7/0443 , H04B7/0452 , H04B7/0632 , H04W72/1231
Abstract: A wireless communication method and system using virtual MIMO (“V-MIMO”) are provided. Post processing signal to interference and noise ratios (“SINR”) for a plurality of signals corresponding to a plurality of mobile terminals arranged as a V-MIMO group are estimated. The one of the plurality of mobile terminals having the highest post processing SINR is selected. Wireless communication for the selected mobile terminal is scheduled. The signal corresponding to the selected mobile terminal is cancelled. Post processing signal to interference and noise ratios (“SINR”) for the signals corresponding to the remaining mobile terminals is re-estimated. The one of the remaining mobile terminals having the highest post processing SINR is selected. Wireless communication for the selected remaining mobile terminal is scheduled.
Abstract translation: 提供了一种使用虚拟MIMO（“V-MIMO”）的无线通信方法和系统。 估计与排列为V-MIMO组的多个移动终端对应的多个信号的后处理信号与干扰和噪声比（“SINR”）。 选择具有最高后处理SINR的多个移动终端中的一个。 安排所选移动终端的无线通信。 对应于所选移动终端的信号被取消。 重新估计对应于其余移动终端的信号的后处理信号与干扰和噪声比（“SINR”）。 选择具有最高后处理SINR的剩余移动终端中的一个。 调度所选择的剩余移动终端的无线通信。
-
-
-
-
-
-
-
-
-
Search Results
239
records
(took 0.026 seconds)
