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：JP2012130018A

公开(公告)日：2012-07-05

申请号：JP2012004644

申请日：2012-01-13

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 ,  TEAGUE EDWARD HARRISON ,  SAMPATH HEMANTH

IPC: H04J13/16 ,  H04B7/04 ,  H04J11/00 ,  H04J99/00 ,  H04W28/06 ,  H04W72/04

CPC classification number: H04B7/2656

Abstract: PROBLEM TO BE SOLVED: To provide a method of efficiently sending signals on a configurable CDMA control segment.SOLUTION: To send signals, transmission parameters for the CDMA control segment 300 for a serving sector are determined. The enabled CDMA signaling channels for a terminal and the average transmission interval for each enabled CDMA signaling channel are determined. For each frame in which the CDMA control segment 300 is sent, the signaling channels to be sent on the CDMA control segment 300 in that frame are determined. The signals for each signaling channel are processed (e.g., encoded, channelized, scaled, and scrambled). The processed signals for all signaling channels are combined and mapped to a time-frequency region used for the CDMA control segment 300 in the frame.

Abstract translation: 要解决的问题：提供一种在可配置的CDMA控制段上有效地发送信号的方法。 解决方案：为了发送信号，确定用于服务扇区的CDMA控制段300的传输参数。 确定终端的使能的CDMA信令信道和每个使能的CDMA信令信道的平均传输间隔。 对于其中发送CDMA控制段300的每个帧，确定要在该帧中的CDMA控制段300上发送的信令信道。 每个信令信道的信号被处理（例如，编码，信道化，缩放和加扰）。 用于所有信令信道的经处理的信号被组合并映射到帧中用于CDMA控制段300的时间 - 频率区域。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012105307A

公开(公告)日：2012-05-31

申请号：JP2011278759

申请日：2011-12-20

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 ,  MICHAEL WANG

IPC: H04J11/00 ,  H04J13/16 ,  H04J99/00

CPC classification number: H04B1/7075 ,  H04B2201/70701

Abstract: PROBLEM TO BE SOLVED: To provide a system and method for facilitating generating and processing acquisition pilots in wireless communications.SOLUTION: Acquisition pilots that convey timing and frequency synchronization information, wireless system acquisition and system determination information are modulated with pseudorandom sequences. R bits of information carried by the acquisition pilot that conveys system determination information are augmented with T bits that convey a counter index associated with the system timing of superframes transmitted from an access point. The processing overhead resulting from the addition of the T bits is offset by advantages afforded to a wireless communication. Salient advantages include: (i) processing gain at a receiver for communication in a specific sector during asynchronous operation, (ii) packet boundary determination through counter field values, and (iii) initialization of various pseudorandom registers employed for communication.

Abstract translation: 要解决的问题：提供一种便于在无线通信中生成和处理采集导频的系统和方法。 解决方案：传输定时和频率同步信息的采集导频，无线系统采集和系统确定信息用伪随机序列进行调制。 传送系统判定信息的采集导频携带的R比特信息用传送与从接入点发送的超帧的系统定时相关联的计数器索引的T比特来增大。 由于添加T位而产生的处理开销被无线通信所带来的优点所抵消。 显着的优点包括：（i）在异步操作期间处理在特定扇区中的通信处理增益，（ii）通过计数器字段值确定分组边界，以及（iii）用于通信的各种伪随机寄存器的初始化。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012100288A

公开(公告)日：2012-05-24

申请号：JP2011268078

申请日：2011-12-07

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

Inventor： KADOUS TAMER ,  KHANDEKAR AAMOD ,  GORE DHANANJAY ASHOK ,  ALEXEI GOROKHOV

IPC: H04J99/00 ,  H04B7/02 ,  H04B7/04

CPC classification number: H04L5/0023 ,  H04B7/0456 ,  H04B7/061 ,  H04B7/0671 ,  H04B7/0691 ,  H04B7/0697 ,  H04L27/2602

Abstract: PROBLEM TO BE SOLVED: To provide transmission schemes that can flexibly achieve a desired spatial multiplexing order, spatial diversity order, and channel estimation overhead order.SOLUTION: For data transmission, assigned subcarriers and a spatial multiplexing order (M) for a receiver are determined (M≥1). For each assigned subcarrier, M virtual antennas are selected from among V virtual antennas formed with V columns of an orthonormal matrix (V≥M). V may be selected to achieve a desired spatial diversity order and channel estimation overhead order. Output symbols are mapped to the M virtual antennas selected for each assigned subcarrier by applying the orthonormal matrix. The mapped symbols are provided for transmission from T transmission antennas (T≥V). Different cyclic delays may be applied for the T transmission antennas to improve diversity.

Abstract translation: 要解决的问题：提供可以灵活地实现期望的空间复用顺序，空间分集顺序和信道估计开销顺序的传输方案。 解决方案：对于数据传输，确定接收机的分配子载波和空间复用顺序（M）（M≥1）。 对于每个分配的子载波，从由正交矩阵（V≥M）的V列形成的V个虚拟天线中选择M个虚拟天线。 可以选择V以实现期望的空间分集顺序和信道估计开销顺序。 通过应用正交矩阵将输出符号映射到为每个分配的副载波选择的M个虚拟天线。 所映射的符号被提供用于从T个发射天线（T≥V）发射。 可以对T发射天线施加不同的循环延迟以改善分集。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012100285A

公开(公告)日：2012-05-24

申请号：JP2011265152

申请日：2011-12-02

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

Inventor： KHANDEKAR AAMOD ,  AGRAWAL AVNEESH

IPC: H04L1/00 ,  H04L27/00

CPC classification number: H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0054 ,  H04L1/1671 ,  H04L1/1819 ,  H04L1/1845 ,  H04L1/1861 ,  H04L1/1893 ,  Y02D50/10

Abstract: PROBLEM TO BE SOLVED: To provide techniques for using multiple modulation schemes for a single packet.SOLUTION: Each data packet is processed and transmitted in up to T blocks, where T>1. Multiple modulation schemes are used for the T blocks to achieve good performance. A transmitter encodes a data packet to generate code bits. The transmitter then forms a block of code bits with the code bits generated for the packet, determines the modulation scheme to be used for the block (e.g., based on a mode/rate selected for the packet), maps the code bits for the block based on the modulation scheme to obtain data symbols, and processes and transmits the block of data symbols to a receiver. The transmitter generates and transmits another block in similar manner until the data packet is decoded correctly or all T blocks have been transmitted. The receiver performs the complementary processing to receive and decode the packet.

Abstract translation: 要解决的问题：提供为单个分组使用多个调制方案的技术。 解决方案：每个数据包被处理并传输到最多T个块，其中T> 1。 多个调制方案用于T块以实现良好的性能。 发射机对数据包进行编码以产生码位。 然后，发射机形成具有为分组生成的码位的码位块，确定要用于块的调制方案（例如，基于为分组选择的模式/速率），映射块的码位 基于调制方式获得数据符号，并处理并发送数据符号块到接收机。 发射机以类似的方式生成和发送另一个块，直到数据分组被正确解码或者所有的T块已被发送。 接收机执行补充处理以接收和解码分组。 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：JP2012010351A

公开(公告)日：2012-01-12

申请号：JP2011162004

申请日：2011-07-25

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

Inventor： KHANDEKAR AAMOD ,  LABI PARANKI

IPC: H04J11/00 ,  H04B1/713

CPC classification number: H04L5/0044 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2666

Abstract: PROBLEM TO BE SOLVED: To provide a technique of flexibly supporting different band widths in a radio communication system.SOLUTION: A configurable operating bandwidth using a fixed design bandwidth and variable guard bands is supported. Values for various parameters such as a fast Fourier transform size, a cyclic prefix length, and a sample rate are selected based on the design bandwidth. The design bandwidth is associated with a total of K subcarriers. Different operating bandwidths are supported by selecting different numbers of usable subcarriers. A transmitter and a receiver perform processing for a transmission using the same FFT size, cyclic prefix length, and sample rate regardless of the selected operating bandwidth. The system uses different operating bandwidths and/or different parameter values (e.g., FFT sizes) for different portions of transmission (e.g., a main body and a preamble of the transmission).

Abstract translation: 要解决的问题：提供一种在无线通信系统中灵活地支持不同带宽的技术。

解决方案：支持使用固定设计带宽和可变保护频段的可配置工作带宽。 基于设计带宽选择各种参数的值，例如快速傅立叶变换大小，循环前缀长度和采样率。 设计带宽与总共K个子载波相关联。 通过选择不同数量的可用子载波来支持不同的工作带宽。 发射机和接收机使用相同的FFT大小，循环前缀长度和采样率来执行用于传输的处理，而与所选择的操作带宽无关。 对于不同的传输部分（例如，主体和传输的前导码），系统使用不同的操作带宽和/或不同的参数值（例如，FFT大小）。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011211722A

公开(公告)日：2011-10-20

申请号：JP2011106480

申请日：2011-05-11

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

Inventor： VIJAYAN RAJIV ,  KHANDEKAR AAMOD ,  LING FUYUN ,  WALKER KENT ,  MURALI RAMASWAMY

IPC: H04J11/00 ,  H04H20/00 ,  H04J3/24 ,  H04J4/00 ,  H04L1/00 ,  H04L5/02 ,  H04L5/06 ,  H04L25/02 ,  H04L27/26 ,  H04W4/06 ,  H04W28/06 ,  H04W72/04

CPC classification number: H04W52/0209 ,  H04B7/12 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/0083 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/06 ,  H04L25/0224 ,  H04L27/2602 ,  H04N21/2383 ,  H04N21/4382 ,  H04N21/6112 ,  H04W4/06 ,  H04W28/06 ,  H04W72/04 ,  Y02D70/00 ,  Y02D70/166 ,  Y02D70/168 ,  Y02D70/442

Abstract: PROBLEM TO BE SOLVED: To provide a technique for multiplexing and transmitting multiple data streams.SOLUTION: Transmission of the multiple data streams occurs in "super-frames". Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing.

Abstract translation: 要解决的问题：提供一种复用和传输多个数据流的技术。解决方案：多个数据流的传输发生在“超帧”中。 每个超帧具有预定的持续时间并进一步分为多个（例如，四个）帧。 每个数据流的每个数据块被外部编码以生成相应的代码块。 每个码块被划分成多个子块，并且每个码块中的每个数据分组被内部编码和调制以产生分组的调制符号。 每个码块的多个子块在相同超帧的多个帧中传送，每帧一个子块。 每个数据流在每个超帧中被分配多个传输单元，并被分配特定的传输单元以实现有效的打包。

公开(公告)号：JP2011193484A

公开(公告)日：2011-09-29

申请号：JP2011089956

申请日：2011-04-14

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

Inventor： AGRAWAL AVNEESH ,  KHANDEKAR AAMOD ,  SUTIVONG ARAK ,  GOROKHOV ALEXEI

IPC: H04J11/00 ,  H04J1/00 ,  H04J13/00 ,  H04W72/04

CPC classification number: H04L27/0008 ,  H04L27/2627 ,  H04L27/2649

Abstract: PROBLEM TO BE SOLVED: To provide a method for performing the communication of a frame having two or more modulation schemes in a single system. SOLUTION: Each part of the communication frames having first and second parts has a plurality of subcarriers, and includes a step of modulating at least one subcarrier in the first part by using a first modulation scheme and a step of modulating one or more subcarriers in the second part by using a second modulation scheme different form the first modulation scheme. First type information is transmitted on at least one of the subcarriers in the first part by using the first modulation scheme. Second type information different from the first type information is transmitted on at least one or more of the subcarriers in the second part by using the second modulation scheme. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于在单个系统中执行具有两个或更多个调制方案的帧的通信的方法。 解决方案：具有第一和第二部分的通信帧的每个部分具有多个子载波，并且包括通过使用第一调制方案来调制第一部分中的至少一个子载波的步骤和调制一个或多个 通过使用与第一调制方案不同的第二调制方案，在第二部分中的子载波。 通过使用第一调制方案，在第一部分中的至少一个子载波上发送第一类型信息。 通过使用第二调制方案，在第二部分中的至少一个或多个子载波上发送与第一类型信息不同的第二类型信息。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011103653A

公开(公告)日：2011-05-26

申请号：JP2010250004

申请日：2010-11-08

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

Inventor： GORE DHANANJAY ASHOK ,  AGRAWAL AVNEESH ,  KHANDEKAR AAMOD

IPC: H04J11/00 ,  H04J1/00 ,  H04W24/10 ,  H04W72/04

CPC classification number: H04L25/0226 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/006

Abstract: PROBLEM TO BE SOLVED: To provide a dynamic resource allocation system, apparatus, and method for selectively improving the ability of a receiver to determine a channel estimate value in an Orthogonal Frequency Division Multiple Access (OFDMA) system. SOLUTION: A wireless communication system dynamically allocates channel estimation resources so as to selectively improve the ability of determining a channel estimate value. A receiver sends a request for additional channel estimation resources to a transmitter in the system. The wireless communication system provides the additional channel estimation resources by inserting dedicated pilot channels into one or more of the frequencies allocated to symbols for the receiver. If the receiver is still unable to demodulate received data, the wireless communication system incrementally inserts additional pilot channels in the symbol associated with the receiver. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于选择性地提高接收机在正交频分多址（OFDMA）系统中确定信道估计值的能力的动态资源分配系统，装置和方法。 解决方案：无线通信系统动态地分配信道估计资源，以选择性地提高确定信道估计值的能力。 接收机向系统中的发射机发送附加信道估计资源的请求。 无线通信系统通过将专用导频信道插入分配给接收机的符号的一个或多个频率来提供附加信道估计资源。 如果接收机仍然不能解调所接收的数据，则无线通信系统递增地在与接收机相关联的符号中插入附加的导频信道。 版权所有（C）2011，JPO＆INPIT