公开(公告)号：JP2012138922A

公开(公告)日：2012-07-19

申请号：JP2012026279

申请日：2012-02-09

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

Inventor： PRAKASH RAJAT ,  MOHAMMAD J BORAN ,  ALEXEI GOROKHOV ,  KHANDEKAR AAMOD

IPC: H04W36/36 ,  H04W28/04 ,  H04W36/00

CPC classification number: H04L1/0061 ,  H04L1/1671 ,  H04L1/1829 ,  H04W28/04 ,  H04W36/0055

Abstract: PROBLEM TO BE SOLVED: To provide systems and methodologies that facilitate recovery from an error due to false detection of completion signals at an access terminal.SOLUTION: A request signal specific to an access terminal can be sent to a target base station to initiate handoff or exit a semi-connected state. A completion signal can be transferred in response to the request signal specific to the access terminal. To mitigate errors stemming from false detection of the completion signal at the access terminal, forward link and reverse link confirmation signals can be transferred to confirm successful handoff or connected state re-entry completion. For example, the access terminal can determine handoff or re-entry to be successful when a forward link confirmation signal is detected prior to expiration of a timer. Moreover, the forward link and reverse link confirmation signals can each include a larger number of CRC bits than the number of CRC bits included in the completion signal.

Abstract translation: 要解决的问题：提供有助于从接入终端的完成信号的错误检测的误差恢复的系统和方法。 解决方案：可以向目标基站发送特定于接入终端的请求信号，以启动切换或退出半连接状态。 可以响应于访问终端特有的请求信号来传送完成信号。 为了减轻由接入终端的完成信号的错误检测引起的错误，可以传送前向链路和反向链路确认信号，以确认成功切换或连接状态重新进入完成。 例如，当在定时器期满之前检测到前向链路确认信号时，接入终端可以确定切换或重新进入成功。 此外，前向链路和反向链路确认信号可以分别包括比包括在完成信号中的CRC比特数更多的CRC比特数。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012054960A

公开(公告)日：2012-03-15

申请号：JP2011219588

申请日：2011-10-03

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 ,  KADOUS TAMER ,  SAMPATH HEMANTH

IPC: H04J99/00 ,  H04B7/04 ,  H04W16/28 ,  H04W24/10

CPC classification number: H04B7/0697 ,  H04L1/0001 ,  H04L1/0006 ,  H04L1/0026 ,  H04L1/1812

Abstract: PROBLEM TO BE SOLVED: To provide a rank step-down method for MIMO SCW (single code word) design employing HARQ.SOLUTION: Systems and methodologies are described that reduce rank (e.g., of a user device) as a number of transmissions therefrom increases. Such rank step-down can improve interference resistance and maintain code rate despite transmission propagation. Additionally, rank step-down information can be encoded along with CQI information to generate a 5-bit CQI signal that can update a user's rank upon each CQI transmission (e.g., approximately every 5 ms). The described systems and/or methods can be employed in a single code word (SCW) wireless communication environment with a hybrid automatic request (HARQ) protocol.

Abstract translation: 要解决的问题：提供使用HARQ的MIMO SCW（单码字）设计的等级降压方法。 描述的系统和方法被描述为随着其数量的增加而减少等级（例如，用户设备）。 这种排序降低可以改善干扰电阻并且尽管传输传播仍然维持码率。 此外，等级降级信息可以与CQI信息一起编码，以产生可以在每次CQI传输（例如，大约每5ms）更新用户等级的5比特CQI信号。 所描述的系统和/或方法可以用于具有混合自动请求（HARQ）协议的单个码字（SCW）无线通信环境中。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011211724A

公开(公告)日：2011-10-20

申请号：JP2011108232

申请日：2011-05-13

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

Inventor： KHANDEKAR AAMOD ,  GOROKHOV ALEXEI ,  AGRAWAL AVNEESH ,  VIJAYAN RAJIV ,  TEAGUE EDWARD HARRISON ,  ULUPINAR FATIH

IPC: H04W72/04 ,  H04J1/00 ,  H04J11/00 ,  H04J99/00 ,  H04W28/20 ,  H04W72/12 ,  H04W74/00

CPC classification number: H04W28/20 ,  H04W8/22 ,  H04W72/12 ,  H04W72/1205 ,  H04W72/1268

Abstract: PROBLEM TO BE SOLVED: To provide a system, apparatus and method for supporting mobile stations that are not capable of demodulating the entire bandwidth when an arranged bandwidth is large, or that can be made to demodulate less than the entire bandwidth.SOLUTION: The method includes the processes of: transmitting a first access request using a first carrier which is one of a plurality of carriers available for communications of access terminals; receiving a first assignment for communication using the first carrier in a first access terminal; and receiving a second assignment for communication using either the first carrier or at least one second carrier, among the plurality of carriers, at the first access terminal on the basis of performances of the access terminals.

Abstract translation: 要解决的问题：提供一种用于支持当布置的带宽大时不能解调整个带宽的移动站的系统，装置和方法，或者可以使其解调小于整个带宽。解决方案：该方法 包括以下处理：使用可用于接入终端通信的多个载波之一的第一载波来发送第一接入请求; 在第一接入终端中接收使用所述第一载波进行通信的第一分配; 并且基于所述接入终端的性能，在所述多个载波中，使用所述第一载波或所述至少一个第二载波，在所述第一接入终端接收第二分配。

公开(公告)号：JP2011182404A

公开(公告)日：2011-09-15

申请号：JP2011049532

申请日：2011-03-07

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: H04J1/00 ,  H04J11/00 ,  H04L27/01

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 multiplex scheme for achieving low PAPR relative to OFDM.
SOLUTION: Enhanced frequency division multiple access (EFDMA) transmits modulation symbols in the time domain. An EFDMA symbol occupies multiple subband groups that are spaced apart in a frequency band, each subband group containing multiple adjacent subbands. To generate a symbol, multiple modulation symbols are mapped onto a first sequence. 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 symbol are retained, and the remaining values are erased to obtain a third sequence. An inverse transform is performed on the third sequence to obtain a fourth sequence. A phase ramp is applied on the fourth sequence, and a cyclic prefix is appended to form the symbol.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供相对于OFDM实现低PAPR的多路复用方案。 解决方案：增强型频分多址（EFDMA）在时域中发送调制符号。 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的子带。 为了生成符号，将多个调制符号映射到第一序列上。 对第一序列执行变换以获得第二序列。 对应于用于符号的子带的第二序列中的值被保留，并且剩余的值被擦除以获得第三序列。 对第三序列执行逆变换以获得第四序列。 在第四序列上施加相位斜坡，并且附加循环前缀以形成符号。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011176843A

公开(公告)日：2011-09-08

申请号：JP2011062782

申请日：2011-03-22

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: H04J1/00 ,  H04J11/00

CPC classification number: H04B1/69 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0212 ,  H04L25/022 ,  H04L25/023 ,  H04L25/025 ,  H04L27/2613 ,  H04L2025/03624

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus for generating a pilot having a constant time-domain envelope and a flat frequency spectrum based on a polyphase sequence.
SOLUTION: In a transmitter, to generate a pilot IFDMA symbol, a first sequence of pilot symbols is formed based on a polyphase sequence and replicated multiple times to obtain a second sequence of pilot symbols. A phase ramp is applied to the second pilot sequence to obtain a third sequence of output symbols. A cyclic prefix is appended to the third sequence of output symbols to obtain an IFDMA symbol, which is transmitted in the time domain via a communication channel. A pilot LFDMA symbol may also be generated with a polyphase sequence and multiplexed using TDM or CDM. A receiver derives a channel estimate based on received pilot symbols and using minimum mean-square error.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种基于多相序列产生具有恒定时域包络和平坦频谱的导频的装置。 解决方案：在发射机中，为了产生导频IFDMA符号，基于多相序列形成第一导频符号序列并多次复制以获得导频符号的第二序列。 将相位斜坡施加到第二导频序列以获得输出符号的第三序列。 循环前缀被附加到第三输出符号序列以获得经由通信信道在时域中发送的IFDMA符号。 也可以使用多相序列生成导频LFDMA符号，并使用TDM或CDM进行复用。 接收机基于接收到的导频符号并使用最小均方误差导出信道估计。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011120280A

公开(公告)日：2011-06-16

申请号：JP2011028804

申请日：2011-02-14

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: H04W72/04 ,  H04J1/00 ,  H04J11/00 ,  H04W16/02 ,  H04W16/12 ,  H04W24/10 ,  H04W72/08

CPC classification number: H04L1/0015 ,  H04L1/0002 ,  H04L1/0006 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/1812 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0012 ,  H04L5/006 ,  H04L27/2601 ,  H04W16/02 ,  H04W16/12

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and method for rate prediction in a wireless communication system having fractional frequency reuse. SOLUTION: A wireless communication system implementing Orthogonal Frequency Division Multiple Access (OFDMA) can implement a fractional frequency reuse plan where a portion of carriers is allocated to terminals without anticipating handoff, and another portion of the carriers is reserved for terminals having a higher probability of handoff. Each of the portions can define a reuse set. The terminals can be constrained to frequency hop within a reuse set. The terminal can also be configured to determine a reuse set based on a present assignment of a subset of carriers. The terminal can determine a channel estimated value and a channel quality indicator based in part on at least the present reuse set. The terminal can report the channel quality indicator to a source, which can determine a rate based on an index value. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种具有分数频率重用的无线通信系统中的速率预测的装置和方法。 解决方案：实现正交频分多址（OFDMA）的无线通信系统可以实现分数频率复用计划，其中一部分载波被分配给终端，而不预期切换，另一部分载波被保留用于具有 更高的切换概率。 每个部分可以定义重用集合。 终端可以被限制在重用集合内的跳频。 终端还可以被配置为基于载波子集的当前分配来确定重用集合。 所述终端可以部分地至少基于所述重用集合来确定信道估计值和信道质量指示符。 终端可以将信道质量指示符报告给源，其可以基于索引值来确定速率。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011091815A

公开(公告)日：2011-05-06

申请号：JP2010248686

申请日：2010-11-05

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

Inventor： TEAGUE EDWARD HARRISON ,  KHANDEKAR AAMOD ,  GORE DHANANJAY ASHOK

IPC: H04W72/04 ,  H04J1/00 ,  H04J11/00 ,  H04J13/00 ,  H04L12/28 ,  H04W76/06

CPC classification number: H04W76/045 ,  H04W72/04

Abstract: PROBLEM TO BE SOLVED: To provide a system and method for providing indication of a gap in transmission so as not to be interpreted by an access point and an access terminal as a mark showing that a resource with the gap in transmission assigned thereto is not available.
SOLUTION: The assignment transmission resource of forward and backward links that is assigned to transmitting entity is managed for a period of time. An indication of a gap is provided whenever the transmitting entity does not transmit actual data packets. However, the transmitting entity is to maintain the assignment of the allocated resource. For example, the length of an erasure signature packet is selected based on an available resource, and the erasure signature packet is transmitted on the assigned resource when there is no actual data to transmit by using the assigned resource.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种系统和方法，用于提供传输中的间隙的指示，以便不被接入点和接入终端解释为表示具有分配了传输中的传输间隙的资源的标记 不可用 解决方案：分配给发送实体的前向和后向链路的分配传输资源被管理一段时间。 每当发送实体不发送实际数据分组时，提供间隙的指示。 然而，发送实体将维护分配的资源的分配。 例如，基于可用资源选择擦除签名分组的长度，并且当不存在通过使用所分配的资源来发送的实际数据时，在所分配的资源上发送擦除签名分组。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011024227A

公开(公告)日：2011-02-03

申请号：JP2010181398

申请日：2010-08-13

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

Inventor： MANTRAVADI ASHOK ,  KHANDEKAR AAMOD ,  TEAGUE EDWARD HARRISON ,  KADOUS TAMER

IPC: H04J11/00 ,  H04L25/02

CPC classification number: H04L25/022 ,  H04L25/0218 ,  H04L25/0232

Abstract: PROBLEM TO BE SOLVED: To provide a method of estimating a channel for an OFDM communication system with inactive subbands. SOLUTION: For channel estimation in a spectrally shaped wireless communication system, an initial frequency response estimate is obtained for a first set of P uniformly spaced subbands (1) based on pilot symbols received on a second set of subbands used for pilot transmission and (2) using extrapolation and/or interpolation. In this case, P is a power of two. A final frequency response estimate for N total subbands is derived by (1) setting low quality taps for the channel impulse response estimate to zero, (2) zero-padding the channel impulse response estimate to length N, and (3) performing an N-point FFT on the zero-padded channel impulse response estimate. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种估计具有无效子带的OFDM通信系统的信道的方法。 解决方案：对于频谱形状的无线通信系统中的信道估计，基于在用于导频传输的第二组子带上接收到的导频符号，为第一组P均匀间隔子带（1）获得初始频率响应估计 和（2）使用外插和/或插值。 在这种情况下，P是2的幂。 通过（1）将信道脉冲响应估计的低质量抽头设置为零，（2）将信道脉冲响应估计零填充到长度N，得到N个总子带的最终频率响应估计，以及（3）执行N 点零点填充信道脉冲响应估计。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011010334A

公开(公告)日：2011-01-13

申请号：JP2010173703

申请日：2010-08-02

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: H04B1/713 ,  H04J99/00

CPC classification number: H04B1/713 ,  H04B7/02 ,  H04L1/0029 ,  H04L5/0023 ,  H04L5/0039 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/006 ,  H04L5/0094 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0232

Abstract: PROBLEM TO BE SOLVED: To provide a method for channel estimation in a wireless communication system operating on a given frequency band.SOLUTION: Resource allocation for a transmission to a wireless device is provided. A frequency band 400 is partitioned into at least two contiguous subbands. A determination is made whether it is desirable to transmit in a single subband or in more than one subband (404, 408, 412, 416). The transmission is assigned either to occur in the single subband or to operate in more than one subband. If the transmission is restricted to one subband, the hop pattern is also restricted to subcarriers within the particular subband.

Abstract translation: 要解决的问题：提供在给定频带上操作的无线通信系统中的信道估计方法。解决方案：提供用于向无线设备的传输的资源分配。 频带400被划分成至少两个连续的子带。 确定是否期望在单个子带中或在多于一个子带（404,408,412,416）中进行发送。 该传输被分配在单个子带中发生或者在多于一个子带中操作。 如果传输被限制到一个子带，则跳频模式也被限制在特定子带内的子载波上。

公开(公告)号：JP2013258736A

公开(公告)日：2013-12-26

申请号：JP2013156101

申请日：2013-07-26

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

Inventor： GAVIN B HORN ,  ULUPINAR FATIH ,  PARAG A AGASHE ,  PRAKASH RAJAT ,  KHANDEKAR AAMOD ,  ALEXEI GOROKHOV ,  BHUSHAN NAGA

IPC: H04W48/10 ,  H04W16/32

CPC classification number: H04W48/10 ,  H04W4/06 ,  H04W36/0061 ,  H04W36/08 ,  H04W48/02 ,  H04W48/08

Abstract: PROBLEM TO BE SOLVED: To provide systems and method that facilitate transmitting access point types and/or restricted association parameters using broadcast signals.SOLUTION: The access point type and/or restricted association parameters are determined by intrinsic aspects of the access point, and extrinsic aspects, such as frequency, interval, and periodicity at the access point (702). A broadcast signal for identifying the access point is generated according to the type and/or the restricted association parameters (704). The broadcast signal for identifying the access point and the type/restricted association parameters is transmitted over a wireless network (706).

Abstract translation: 要解决的问题：提供有助于使用广播信号发送接入点类型和/或限制关联参数的系统和方法。解决方案：接入点类型和/或受限关联参数由接入点的内在方面确定，外部 方面，例如接入点处的频率，间隔和周期性（702）。 根据类型和/或限制关联参数生成用于识别接入点的广播信号（704）。 通过无线网络（706）发送用于识别接入点的广播信号和类型/限制关联参数。