公开(公告)号：JP2012199955A

公开(公告)日：2012-10-18

申请号：JP2012111719

申请日：2012-05-15

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： ALEXEI GOROKHOV ,  KHANDEKAR AAMOD ,  PALANKI RAVI

IPC: H04W56/00 ,  H04J11/00 ,  H04J13/16 ,  H04W72/04

CPC classification number: H04L27/2613 ,  H04B1/7075 ,  H04B2201/70701 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2655

Abstract: PROBLEM TO BE SOLVED: To generate pilots for signal acquisition in a wireless communication system based on time domain sequences.SOLUTION: The pilots are generated by a base station and transmitted in a pilot field to one or more access terminals to aid in signal acquisition at each of the access terminals. One of the pilots is common to all access points in the wireless communication system, thereby allowing an access terminal to obtain a timing estimate for the system. Further, one or more generated pilots are unique to each access point in order to allow each respective access point to be identified by its generated pilots.

Abstract translation: 要解决的问题：在基于时域序列的无线通信系统中生成用于信号采集的导频。 解决方案：导频由基站产生并在导频字段中发送到一个或多个接入终端，以帮助在每个接入终端处的信号采集。 其中一个导频对于无线通信系统中的所有接入点是公共的，从而允许接入终端获得系统的定时估计。 此外，一个或多个生成的导频对于每个接入点是唯一的，以便允许通过其生成的导频来识别每个相应的接入点。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012199942A

公开(公告)日：2012-10-18

申请号：JP2012107028

申请日：2012-05-08

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： KHANDEKAR AAMOD ,  ALEXEI GOROKHOV ,  BHUSHAN NAGA ,  SARKAR SANDIP ,  PALANKI RAVI

IPC: H04J11/00 ,  H04W52/14 ,  H04W52/16 ,  H04W52/24 ,  H04W52/36 ,  H04W52/60 ,  H04W72/04 ,  H04W72/08

CPC classification number: H04W72/04 ,  H04B1/713 ,  H04B7/2621 ,  H04L1/1692 ,  H04L5/0053 ,  H04W52/146 ,  H04W52/16 ,  H04W52/243 ,  H04W52/247 ,  H04W52/362 ,  H04W52/60 ,  H04W72/08

Abstract: PROBLEM TO BE SOLVED: To provide techniques for efficiently sending control information.SOLUTION: A plurality of control resources are defined and mapped to transmission units for a control segment. For symmetric mapping, multiple sets of control resources are formed, and each batch of L consecutive sets of S control resources is mapped to S transmission units at the same location in the L tiles. For localized mapping, each set of S control resources is mapped to a cluster of S adjacent transmission units in one tile. For distributed mapping, each control resource is mapped to one transmission unit in one tile. For diversity, each control resource is mapped to multiple (e.g., three) transmission units in at least one tile.

Abstract translation: 要解决的问题：提供有效发送控制信息的技术。 解决方案：多个控制资源被定义并映射到控制段的传输单元。 对于对称映射，形成多组控制资源，每L批连续的S个控制资源集合映射到L个块中相同位置的S个传输单元。 对于局部映射，每组S控制资源被映射到一个瓦片中S个相邻传输单元的簇。 对于分布式映射，每个控制资源被映射到一个瓦片中的一个传输单元。 对于分集，每个控制资源被映射到至少一个瓦片中的多个（例如，三个）传输单元。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012165417A

公开(公告)日：2012-08-30

申请号：JP2012071420

申请日：2012-03-27

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： PALANKI RAVI ,  JEREMY H LIN ,  KHANDEKAR AAMOD ,  ALEXEI GOROKHOV ,  AGRAWAL AVNEESH

IPC: H04L1/00

CPC classification number: H04L1/0007 ,  H04L1/0009 ,  H04L1/0021 ,  H04L1/0042 ,  H04L1/1812 ,  H04L1/1822

Abstract: PROBLEM TO BE SOLVED: To provide techniques for encoding and decoding data.SOLUTION: Multiple code rates for a forward error correction (FEC) code may be supported, and a suitable code rate may be selected based on packet size. A transmitter may obtain at least one threshold to use for code rate selection, determine a packet size to use for data transmission, and select a code rate among the multiple FEC code rates based on the packet size and the at least one threshold. Multiple FEC codes of different types (e.g., Turbo, LDPC, and convolutional codes) may be supported, and a suitable FEC code may be selected based on packet size. The transmitter may obtain at least one threshold to use for FEC code selection and may select an FEC code among the multiple FEC codes based on the packet size and the at least one threshold.

公开(公告)号：JP2012142960A

公开(公告)日：2012-07-26

申请号：JP2012028373

申请日：2012-02-13

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： PALANKI RAVI ,  WANG MICHAEL MAO

IPC: H04J1/00 ,  H04J11/00 ,  H04J99/00

CPC classification number: H04L27/261 ,  H04B7/04 ,  H04L5/023 ,  H04L27/2602

Abstract: PROBLEM TO BE SOLVED: To provide a system and method for facilitating guard bandwidth independent mapping and de-mapping of a bandwidth in a wireless communication system.SOLUTION: To map symbols to a bandwidth independent of guard tones, a broadcast message is encoded into a plurality of broadcast symbols (502); and mapped to the entire bandwidth (504); and the guard tones are zeroed out (506). Then, the broadcast symbols and the guard tones are transformed to a time domain (508), and transmitted as a broadcast signal (510).

Abstract translation: 要解决的问题：提供一种用于促进无线通信系统中带宽的保护带宽独立映射和去映射的系统和方法。 解决方案：为了将符号映射到独立于保护音的带宽，广播消息被编码成多个广播符号（502）; 并映射到整个带宽（504）; 并且保护音调被清零（506）。 然后，将广播符号和保护音调变换为时域（508），并作为广播信号（510）发送。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012039626A

公开(公告)日：2012-02-23

申请号：JP2011184924

申请日：2011-08-26

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： KHANDEKAR AAMOD ,  PALANKI RAVI

IPC: H04J11/00 ,  H04J1/00

CPC classification number: H04L27/2618 ,  H04L5/0007 ,  H04L5/0039 ,  H04L5/0041 ,  H04L5/0046 ,  H04L25/0228 ,  H04L25/03159

Abstract: PROBLEM TO BE SOLVED: To provide a wireless communication system with a multiplication scheme that does not have a high PAPR.SOLUTION: Enhanced frequency division multiple access (EFDMA) is a multiplexing scheme that sends modulation symbols in the time domain and achieves a lower PAPR. An EFDMA symbol occupies multiple subband groups that are spaced apart in a frequency band, with each subband group containing multiple adjacent subbands. To generate an EFDMA symbol, multiple modulation symbols are mapped onto a first sequence of symbols. A transform is performed on the first sequence to obtain a second sequence. The values in the second sequence corresponding to the subbands used for the EFDMA symbol are retained, and the remaining values are zeroed out to obtain a third sequence. An inverse transform is performed on the third sequence to obtain a fourth sequence.

Abstract translation: 要解决的问题：提供一种具有不具有高PAPR的乘法方案的无线通信系统。 解决方案：增强型频分多址（EFDMA）是一种在时域中发送调制符号并实现较低PAPR的复用方案。 EFDMA符号占据在频带中间隔开的多个子带组，每个子带组包含多个相邻子带。 为了产生EFDMA符号，将多个调制符号映射到第一符号序列上。 对第一序列执行变换以获得第二序列。 对应于用于EFDMA符号的子带的第二序列中的值被保留，并且剩余的值被清零以获得第三序列。 对第三序列执行逆变换以获得第四序列。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011097605A

公开(公告)日：2011-05-12

申请号：JP2010270306

申请日：2010-12-03

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： PALANKI RAVI ,  KHANDEKAR AAMOD ,  SUTIVONG ARAK

IPC: H04J99/00 ,  H04J11/00 ,  H04J13/10

CPC classification number: H04B7/04 ,  H04L1/1819 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0206 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/0228 ,  H04L25/0256

Abstract: PROBLEM TO BE SOLVED: To provide techniques to support simultaneous transmissions for more terminals in a multiple-access system. SOLUTION: In a single-carrier frequency division multiple access (SC-FDMA) system that utilizes interleaved FDMA (IFDMA) or localized FDMA, transmitters may transmit their pilots, which are orthogonal to one another, using time division multiplexing (TDM), code division multiplexing (CDM), interleaved frequency division multiplexing (IFDM) or localized frequency division multiplexing (LFDMA). A receiver performs the complementary demultiplexing (non-multiplexing) for the pilots and may derive a channel estimate for each transmitter using an MMSE technique or a least-square technique. Data transmissions sent on the same time-frequency block are separated by spatial filter matrices. The spatial filter matrices are derived based on the channel estimates and using zero-forcing, MMSE, or maximal ratio combining technique. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供技术来支持多址系统中更多终端的同时传输。 解决方案：在采用交织FDMA（IFDMA）或局部FDMA的单载波频分多址（SC-FDMA）系统中，发射机可以使用时分复用（TDM）来发射它们彼此正交的导频 ），码分复用（CDM），交错频分复用（IFDM）或局域频分复用（LFDMA）。 接收机对导频执行互补解复用（非多路复用），并且可以使用MMSE技术或最小二乘法来为每个发射机导出信道估计。 在相同时间频率块上发送的数据传输由空间滤波器矩阵分隔开。 空间滤波器矩阵是基于信道估计和使用零强制，MMSE或最大比组合技术导出的。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011019219A

公开(公告)日：2011-01-27

申请号：JP2010153223

申请日：2010-07-05

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： PALANKI RAVI ,  KHANDEKAR AAMOD

IPC: H04B1/713 ,  H04J11/00 ,  H04W72/04

CPC classification number: H04L5/0007 ,  H04B1/7143 ,  H04L5/0021 ,  H04L5/0048 ,  H04L9/0625 ,  H04L2209/08 ,  H04L2209/80

Abstract: PROBLEM TO BE SOLVED: To provide a technique for efficiently designing random hopping patterns in a communications system.SOLUTION: In this method, random hopping patterns are generated, the patterns are frequently updated, different patterns are generated for different cells/sectors, and patterns of nearby sub-carriers are generated for block hopping. A first number of sub-carriers are determined. A second number of hop ports are determined. A third number of seeds are determined. At least one hopping pattern is generated based on the first number of sub-carriers, the second number of hop ports and the third number of seeds.

Abstract translation: 要解决的问题：提供一种在通信系统中有效设计随机跳频模式的技术。解决方案：在该方法中，生成随机跳频模式，频繁更新模式，为不同的小区/扇区生成不同的模式，并且模式 生成了用于块跳跃的附近副载波。 确定第一数量的副载波。 确定第二个跳数端口数。 确定第三数量的种子。 基于第一数量的子载波，第二跳数端口和第三数量的种子来生成至少一个跳频模式。

公开(公告)号：JP2013240067A

公开(公告)日：2013-11-28

申请号：JP2013123559

申请日：2013-06-12

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： MICHAEL M WANG ,  PALANKI RAVI ,  BHUSHAN NAGA

IPC: H04W48/16 ,  H04B1/10 ,  H04J11/00 ,  H04W48/12 ,  H04W88/02

CPC classification number: H04W48/16 ,  H04B1/7107 ,  H04J11/004 ,  H04J11/0093 ,  H04W64/003

Abstract: PROBLEM TO BE SOLVED: To provide techniques for performing cell detection by using interference cancellation.SOLUTION: User equipment (UE) may detect pilots from cells in a wireless network by using interference cancellation. The UE processes a received signal to detect pilots from one or more cells. The pilots are common pilots transmitted with a reuse factor of one or low reuse pilots transmitted with a reuse factor greater than one. The UE may estimate the interference from a detected cell (e.g., the strongest detected cell) and may cancel the estimated interference from the received signal. The UE may then process the interference-canceled signal to detect pilots from additional cells. The UE is capable of detecting pilots from more cells, e.g., from weaker cells, by canceling the interference caused by the pilots from the detected cells.

Abstract translation: 要解决的问题：提供通过使用干扰消除来执行小区检测的技术。解决方案：用户设备（UE）可以通过使用干扰消除来检测来自无线网络中的小区的导频。 UE处理接收的信号以检测来自一个或多个小区的导频。 导频是以重用因子大于1的一个或多个重用导频的重用因子发送的公共导频。 UE可以估计来自检测到的小区（例如，最强检测小区）的干扰，并且可以从接收到的信号中消除所估计的干扰。 然后，UE可以处理干扰消除信号以检测来自附加小区的导频。 UE能够通过消除来自检测到的小区的导频引起的干扰来检测来自较弱小区的更多小区的导频。

公开(公告)号：JP2013232965A

公开(公告)日：2013-11-14

申请号：JP2013140495

申请日：2013-07-04

Applicant: Qualcomm Inc ,  クアルコム,インコーポレイテッド

Inventor： PALANKI RAVI ,  JUAN MONTOJO ,  AAMOD D KHANDEKAR ,  TAO RUO ,  KAPIL BHATTAD

IPC: H04W48/10 ,  H04J11/00 ,  H04J99/00 ,  H04W72/04

CPC classification number: H04W28/0284 ,  H04B7/0617 ,  H04J11/005 ,  H04L1/0041 ,  H04L1/0072 ,  H04L5/0007 ,  H04L5/0053 ,  H04L7/041 ,  H04L27/2613 ,  H04W56/001 ,  H04W72/0453

Abstract: PROBLEM TO BE SOLVED: To provide techniques for transmitting overload indicators over the air to UEs in neighbor cells.SOLUTION: In one design, an overload indicator may be transmitted as a phase difference between at least one synchronization signal and a reference signal for a cell. In another design, an overload indicator may be transmitted as a phase difference between consecutive transmissions of at least one synchronization signal for a cell. In yet another design, an overload indicator may be transmitted by a cell on resources reserved for transmitting the overload indicator. In yet another design, an overload indicator may be transmitted by a cell on a low reuse channel or a broadcast channel. For all designs, a UE may receive overload indicators from neighbor cells, determine the loading of each neighbor cell on the basis of the overload indicator for that cell, and control its operation on the basis of the loading of the neighbor cells.

Abstract translation: 要解决的问题：提供用于在空中向相邻小区中的UE发送过载指示符的技术。解决方案：在一种设计中，过载指示符可以作为小区的至少一个同步信号和参考信号之间的相位差发送 。 在另一种设计中，可以将过载指示符作为用于小区的至少一个同步信号的连续传输之间的相位差发送。 在另一种设计中，过载指示符可以由小区在保留用于发送过载指示符的资源上发送。 在另一种设计中，过载指示符可以由低重用信道或广播信道上的小区发送。 对于所有设计，UE可以从相邻小区接收过载指示符，基于该小区的过载指示符来确定每个相邻小区的负载，并且基于相邻小区的加载来控制其操作。

公开(公告)号：JP2013232938A

公开(公告)日：2013-11-14

申请号：JP2013128914

申请日：2013-06-19

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： PALANKI RAVI ,  ALEXEI Y GOROKHOV

IPC: H04W28/04 ,  H04W28/16

CPC classification number: H04L1/1893 ,  H04B7/024 ,  H04L1/0025 ,  H04L1/1887 ,  H04L2001/0097 ,  H04W72/0413 ,  H04W72/042

Abstract: PROBLEM TO BE SOLVED: To provide systems and methodologies that facilitate identifying resources upon which an acknowledgment can be sent or received in a wireless communication environment that leverages coordinated multi-point (CoMP).SOLUTION: The resources are identified on the basis of criteria that are identifiable to a non-anchor cell base station as well as an anchor cell base station, a mobile device, etc. The criteria can be an identifier corresponding to a mobile device. The identifier is mapped to a predetermined set of resources. Examples of the identifier can include a media access control identifier (MACID), a cell radio network temporary identifier (C-RNTI), a short C-RNTI, etc. The criteria are used to identify physical resources used in a transmission in a cooperation environment such as inter-site packet sharing, cooperative beamforming, or cooperative silence, where the acknowledgment is responsive to the transmission.

Abstract translation: 要解决的问题：提供有助于识别在利用协调多点（CoMP）的无线通信环境中可以发送或接收确认的资源的系统和方法。解决方案：根据以下标准确定资源： 可以对非锚小区基站以及锚小区基站，移动设备等进行识别。标准可以是对应于移动设备的标识符。 标识符被映射到预定资源集合。 标识符的示例可以包括媒体访问控制标识符（MACID），小区无线电网络临时标识符（C-RNTI），短C-RNTI等。标准用于识别在协作中在传输中使用的物理资源 诸如站点间分组共享，协作波束形成或协作静音的环境，其中确认响应于传输。