公开(公告)号：US09491736B2

公开(公告)日：2016-11-08

申请号：US13899362

申请日：2013-05-21

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Katsuyoshi Naka ,  Hiroki Haga ,  Hidenori Matsuo

IPC: H04W72/02 ,  H04B1/7083 ,  H04L27/26 ,  H04J11/00 ,  H04B1/7073 ,  H04L5/00

CPC classification number: H04J11/0069 ,  H04B1/70735 ,  H04B1/7083 ,  H04B2201/70701 ,  H04L5/0016 ,  H04L5/005 ,  H04L27/2613 ,  H04L27/2656 ,  H04L27/2675 ,  H04W72/02 ,  H04W88/08

Abstract: Provided are a base station device and a mobile station device, which can lighten a cell-search processing. The base station device includes a frame constitution unit for forming a frame, in which a pilot symbol multiplied by a base station scrambling code and a plurality of sequences contained in the corresponding sequence set is arranged in at least the head or tail, and a radio transmission unit for sending the formed frame. On the receiving side, the frame timing can be detected from the position of a pilot symbol contained in that frame. Since the base station scrambling code and the sequence set containing the sequences are made to correspond to each other, candidates can be narrowed to at most the base station scrambling codes of the number of the combinations of the sequences contained in the sequence set, by detecting the sequences multiplied by the pilot symbol.

Abstract translation: 提供了一种能够减轻小区搜索处理的基站装置和移动站装置。 基站装置包括用于形成帧的帧构成单元，其中将至少包含在基站扰码中的导频符号和包含在相应序列集中的多个序列至少布置在头部或尾部中，并且收音机 发送单元，用于发送形成的帧。 在接收侧，可以从包含在该帧中的导频符号的位置检测帧定时。 由于使基站扰频码和包含该序列的序列集彼此对应，因此可以通过检测候选，将候选数减至最多包含在序列集中的序列的组合数的基站扰码 序列乘以导频符号。

公开(公告)号：US20160204918A1

公开(公告)日：2016-07-14

申请号：US15075929

申请日：2016-03-21

Applicant: NEC Corporation

Inventor： Kengo OKETANI ,  Yoshikazu KAKURA

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0044 ,  H04B2201/70701 ,  H04J13/0059 ,  H04J13/0062 ,  H04J13/16 ,  H04L5/0007 ,  H04L5/0048 ,  H04W28/04 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0446

Abstract: A device and method in which a plurality of Zadoff-Chu sequences is allocated to a frame, a value of a parameter in the Zadoff-Chu sequence is different among the plurality of Zadoff-Chu sequences, and the Zadoff-Chu sequence allocated to the frame is different among a plurality of cells.

公开(公告)号：US20160020865A1

公开(公告)日：2016-01-21

申请号：US14869028

申请日：2015-09-29

Applicant: QUALCOMM Incorporated

Inventor： Kim Byoung-Hoon ,  Yongbin Wei ,  Amir Dabbagh

IPC: H04J13/00 ,  H04L27/26 ,  H04J3/00 ,  H04L5/06 ,  H04B17/309 ,  H04B7/04 ,  H04L5/00

CPC classification number: H04J13/0003 ,  H04B7/0421 ,  H04B7/0671 ,  H04B7/0678 ,  H04B7/068 ,  H04B7/0697 ,  H04B17/309 ,  H04B2201/70701 ,  H04J3/00 ,  H04J13/0022 ,  H04J13/0059 ,  H04J13/0062 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0051 ,  H04L5/06 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/2601 ,  H04L27/2613 ,  H04L27/2636

Abstract: Techniques for multiplexing pilots in a wireless transmission are described. In one aspect, a transmitter station generates multiple pilot sequences for multiple transmit antennas, with each pilot sequence comprising pilot symbols sent in the time domain on a different set of subcarriers. The transmitter station further generates multiple pilot transmissions for the transmit antennas based on the pilot sequences. In another aspect, a transmitter station generates multiple pilot sequences for multiple transmit antennas based on frequency-domain code division multiplexing (FD-CDM) of a Chu sequence defined by a transmitter-specific value. The transmitter station further generates multiple pilot transmissions for the transmit antennas based on the pilot sequences. In yet another aspect, a transmitter station generates multiple pilot transmissions for multiple transmit antennas based on a first multiplexing scheme and generates multiple data transmissions based on a second multiplexing scheme that is different from the first multiplexing scheme.

Abstract translation: 描述用于在无线传输中复用导频的技术。 在一个方面，发射机站为多个发射天线生成多个导频序列，每个导频序列包括在不同子载波集上的时域中发送的导频符号。 发射台还根据导频序列进一步为发射天线产生多个导频传输。 在另一方面，发射机站基于由发射机特定值定义的楚序列的频域码分复用（FD-CDM），为多个发射天线生成多个导频序列。 发射台还根据导频序列进一步为发射天线产生多个导频传输。 在另一方面，发射机站基于第一复用方案为多个发射天线生成多个导频传输，并且基于与第一复用方案不同的第二复用方案来生成多个数据传输。

公开(公告)号：US09237515B2

公开(公告)日：2016-01-12

申请号：US12533495

申请日：2009-07-31

Applicant: Michael M. Wang

Inventor： Michael M. Wang

IPC: H04W24/00 ,  H04W48/20 ,  H04B1/7107 ,  H04L25/02 ,  H04L25/03

CPC classification number: H04W48/20 ,  H04B1/71072 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04L25/0228 ,  H04L25/03006

Abstract: Techniques for performing cell detection with successive detection and cancellation (SDC) are described. For SDC, pilots from stronger cells may be canceled from a received signal at a user equipment (UE) so that weaker cells may be detected as a result of reduced interference from the stronger cells. In one design, a UE processes a received signal to detect for a cell and determines whether the detected cell is sufficiently strong. If the cell is sufficiently strong, then the UE cancels the interference due to the detected cell from the received signal and further processes an interference-canceled signal to detect for another cell. The UE may detect for cells in a set of cells in a sequential order, from the strongest cell to the weakest cell. The UE may terminate detection when a cell not sufficiently strong is detected or when all cells in the set are detected.

Abstract translation: 描述了用连续检测和消除（SDC）进行小区检测的技术。 对于SDC，来自较强小区的导频可以在用户设备（UE）处从接收到的信号中消除，从而可以通过来自较强小区的干扰减少来检测较弱的小区。 在一种设计中，UE处理接收的信号以检测小区并确定所检测的小区是否足够强。 如果小区足够强，则UE从接收到的信号中消除由于检测到的小区引起的干扰，并进一步处理干扰消除信号以检测另一小区。 UE可以按照从最强小区到最弱小区的顺序检测一组小区中的小区。 当检测到不够牢固的小区时，或者当检测到该组中的所有小区时，UE可以终止检测。

公开(公告)号：US20150382337A1

公开(公告)日：2015-12-31

申请号：US14844858

申请日：2015-09-03

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo KO ,  Moonil LEE ,  Jaehoon CHUNG ,  Seunghee HAN ,  Jiwoong JANG

IPC: H04W72/04 ,  H04W72/06 ,  H04L1/00 ,  H04B7/04 ,  H04B7/26

CPC classification number: H04W72/0406 ,  H04B7/0413 ,  H04B7/2628 ,  H04B2201/70701 ,  H04L1/0026 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0073 ,  H04L1/06 ,  H04L1/1671 ,  H04L5/0023 ,  H04L5/0053 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04W72/06 ,  H04W88/08

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting uplink control information in a wireless communication system. A method for multiplexing uplink control information and uplink data and for transmitting the multiplexed uplink control information and uplink data according to one embodiment of the present invention comprises the following steps: encoding a first transmission block and a second transmission block to generate a first codeword and a second codeword; mapping the first codeword and the second codeword to one or more layers, respectively; and transmitting, via one or more antenna ports, each layer to which the first codeword and the second codeword are mapped, wherein the uplink control information is multiplexed only to either the first transmission block or to the second transmission block.

Abstract translation: 无线通信系统技术领域本发明涉及一种无线通信系统，更具体地，涉及一种用于在无线通信系统中发送上行链路控制信息的方法和装置。 根据本发明的一个实施例的用于复用上行链路控制信息和上行链路数据并用于发送多路复用的上行链路控制信息和上行链路数据的方法包括以下步骤：对第一传输块和第二传输块进行编码以产生第一码字， 第二码字; 将第一码字和第二码字分别映射到一个或多个层; 并且经由一个或多个天线端口发送映射了所述第一码字和所述第二码字的每个层，其中所述上行链路控制信息仅被复用到所述第一传输块或所述第二传输块。

公开(公告)号：US20150304089A1

公开(公告)日：2015-10-22

申请号：US14754033

申请日：2015-06-29

Applicant: QUALCOMM Incorporated

Inventor： Byoung-Hoon Kim ,  Durga Prasad Malladi ,  Hao Xu

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/04 ,  H04W52/32 ,  H04W72/04

CPC classification number: H04L5/0057 ,  H04B7/0413 ,  H04B7/0632 ,  H04B2201/70701 ,  H04L1/0002 ,  H04L1/02 ,  H04L1/06 ,  H04L5/023 ,  H04L25/0224 ,  H04L25/023 ,  H04L27/261 ,  H04W52/325 ,  H04W72/042

Abstract: Techniques for efficiently deriving uplink channel estimates without consuming much additional uplink resources are described. A user equipment (UE) may send a request for uplink resources on a request channel (REQCH) whenever the UE desires to transmit data on the uplink. The UE may send the REQCH on a set of subcarriers and from multiple antennas, e.g., send REQCH data on data subcarriers and pilot on pilot subcarriers. A Node B may receive the request, estimate the complex channel gains for the pilot subcarriers based on received pilot symbols, and coherently demodulate received data symbols based on the channel gain estimates. The Node B may estimate the complex channel gains for the data subcarriers based on demodulated data symbols and derive a channel estimate for each UE antenna based on the channel gain estimates for the pilot and data subcarriers. The Node B may use the channel estimates for MIMO scheduling, subband scheduling, and rate selection.

Abstract translation: 描述了在不消耗大量附加上行链路资源的情况下有效地导出上行链路信道估计的技术。 每当UE希望在上行链路上发送数据时，用户设备（UE）可以在请求信道（REQCH）上发送上行链路资源的请求。 UE可以在一组子载波上从多个天线发送REQCH，例如在数据子载波上发送REQCH数据，并在导频子载波上导频。 节点B可以接收该请求，基于接收到的导频符号估计导频子载波的复信道增益，并且基于信道增益估计来相干地解调所接收的数据符号。 节点B可以基于解调的数据符号来估计数据子载波的复信道增益，并且基于导频和数据子载波的信道增益估计导出每个UE天线的信道估计。 节点B可以使用用于MIMO调度，子带调度和速率选择的信道估计。

公开(公告)号：US09001811B2

公开(公告)日：2015-04-07

申请号：US12468122

申请日：2009-05-19

Applicant: Philip M. Wala ,  Dean Zavadsky

Inventor： Philip M. Wala ,  Dean Zavadsky

IPC: H04B7/14 ,  H04B7/216 ,  H04W4/00 ,  H04B1/707 ,  H04B7/06 ,  H04W16/26 ,  H04W88/08

CPC classification number: H04B1/707 ,  H04B7/0671 ,  H04B2201/70701 ,  H04W16/26 ,  H04W88/085

Abstract: A communication system to feed remote antenna nodes with simulcast traffic and non-simulcast beacons is provided. The communication system includes a host radio frequency (RF) digitizer, a delay buffer, a summing circuit, and a framer/serializer. The host RF digitizer receives CDMA base station signals for simulcast CDMA-traffic-bearing channels and to output digital samples. The delay buffer is communicatively coupled to receive the samples output from a beacon pilot generator and to output digitally delayed CDMA-digital-beacon-pilot samples having different pseudo-noise offsets. The summing circuit adds the CDMA-digital-beacon-pilot samples having different pseudo-noise offsets to the digital samples received from the host RF digitizer to form composite simulcast-plus-uniquely-offset-beacon-pilot CDMA samples. The framer/serializer is communicatively coupled to receive the composite simulcast-plus-uniquely-offset-beacon-pilot CDMA samples, and to route the composite simulcast-plus-uniquely-offset-beacon-pilot CDMA samples to an associated remote antenna node.

Abstract translation: 提供了一种用于馈送具有联播流量和非联播信标的远程天线节点的通信系统。 通信系统包括主机射频（RF）数字转换器，延迟缓冲器，加法电路和成帧器/串行器。 主机RF数字化器接收CDMA基站信号用于联播CDMA业务承载信道并输出数字采样。 延迟缓冲器被通信地耦合以接收从信标导频发生器输出的采样并输出具有不同伪噪声偏移的数字延迟的CDMA数字信标 - 导频样本。 求和电路将具有不同伪噪声偏移的CDMA数字信标导频样本添加到从主RF数字转换器接收的数字样本，以形成复合同播广 - 唯一偏移信标 - 导频CDMA样本。 成帧器/串行器通信地耦合以接收复合联播 - 唯一偏移信标 - 导频CDMA样本，并且将复合联播加唯一偏移信标导频CDMA样本路由到相关联的远程天线节点。

公开(公告)号：US20140376539A1

公开(公告)日：2014-12-25

申请号：US14480116

申请日：2014-09-08

Applicant: IPR Licensing, Inc.

Inventor： John E. Hoffmann ,  George R. Nelson ,  James A. Proctor ,  Antoine J. Rouphael, III

IPC: H04L5/00

CPC classification number: H04L5/005 ,  H04B1/707 ,  H04B7/2628 ,  H04B2201/70701 ,  H04L1/0041 ,  H04L1/0063 ,  H04L1/0065 ,  H04L1/0066 ,  H04L1/0071 ,  H04L5/0048 ,  H04L27/183 ,  H04L27/2657 ,  H04L27/2662

Abstract: A technique for encoding digital communication signals. Data symbols are augmented in pilot symbols inserted at predetermined positions. The pilot augmented sequence is then fed to a deterministic error correction block encoder, such as a turbo product coder, to output a coded sequence. The symbols in the error correction encoded sequence are then rearranged to ensure that the output symbols derived from input pilot symbols are located at regular, predetermined positions. As a result, channel encoding schemes can more easily be used which benefits from power of two length block sizes.

Abstract translation: 一种用于编码数字通信信号的技术。 数据符号在插入预定位置的导频符号中增加。 导频增强序列然后被馈送到诸如turbo乘积编码器的确定性纠错块编码器，以输出编码序列。 然后重新排列纠错编码序列中的符号，以确保从输入导频符号导出的输出符号位于规则的预定位置。 结果，可以更容易地使用信道编码方案，其受益于两个长度块大小的功率。

公开(公告)号：US08913695B2

公开(公告)日：2014-12-16

申请号：US12045501

申请日：2008-03-10

Applicant: Durga Prasad Malladi ,  Dung N. Doan

Inventor： Durga Prasad Malladi ,  Dung N. Doan

IPC: H04L27/06 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04L5/005 ,  H04B2201/70701 ,  H04L5/0007 ,  H04L5/0051 ,  H04L25/0224

Abstract: Systems and methodologies are described that facilitate employing a hybrid pilot configuration in a wireless communications network. A hybrid pilot configuration includes common pilot symbols and dedicated pilots multiplexed together within a time transmission interval. The multiplexed pilot symbols can be received and utilized to demodulate channels. Common pilot symbols can be employed to demodulate control channels and dedicated pilot symbols can be utilized to demodulate data channels. Moreover, the dedicated pilot symbols can be employed to generate a channel estimate. The common pilot channels can be utilized in combination with the dedicated pilot symbols to augment the channel estimate.

Abstract translation: 描述了有助于在无线通信网络中采用混合导频配置的系统和方法。 混合导频配置包括在时间传输间隔内多路复用在一起的公共导频符号和专用导频。 多路复用导频符号可被接收并用于解调信道。 可以采用公共导频符号来解调控制信道，并且可以使用专用导频符号来解调数据信道。 此外，可以采用专用导频符号来产生信道估计。 公共导频信道可以与专用导频符号结合使用，以增加信道估计。

公开(公告)号：US20140348135A1

公开(公告)日：2014-11-27

申请号：US14287618

申请日：2014-05-27

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski ,  Alexander Jacques

IPC: H04B7/26

CPC classification number: H04B7/2637 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

Abstract: A subscriber unit for use in a communication system includes a spread spectrum radio interface, responsive to a rate function signal from a base station, and first and second despreaders. The base station assigns the rate function spread-spectrum message channels and the first despreader recovers and modifies an information signal one of the spread spectrum message channels. The information channel mode is then modified for processing by the second despreader, with the second despreader supporting a different information signal rate. The subscriber unit has a capability of communicating with a dynamically changing a transmission rate of an information signal which includes multiple spread spectrum message channels. The system includes a closed loop power control system for maintaining a minimum system transmit power level for a radio carrier station and the subscriber units, and system capacity management for maintaining a maximum number of active subscriber units for improved system performance.

Abstract translation: 用于通信系统的用户单元包括响应于来自基站的速率函数信号的扩展频谱无线电接口以及第一和第二解扩器。 基站分配速率函数扩频消息信道，第一解扩器恢复扩频信息信道之一的信息信号。 然后，信息信道模式被修改用于由第二解扩器进行处理，第二解扩器支持不同的信息信号速率。 用户单元具有与动态地改变包括多个扩频消息信道的信息信号的传输速率进行通信的能力。 该系统包括用于维持无线电载波台和用户单元的最小系统发射功率电平的闭环功率控制系统和用于维持最大数量的活动用户单元以提高系统性能的系统容量管理。