公开(公告)号：JP2012199938A

公开(公告)日：2012-10-18

申请号：JP2012106748

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： BYUN-HON KIM ,  MALLADI DURGA PRASAD ,  DUNG N DOAN

IPC: H04J13/18 ,  H04W28/18 ,  H04W72/04

CPC classification number: H04W28/18 ,  H04L1/001 ,  H04L1/0033 ,  H04L1/0072 ,  H04L1/0079 ,  H04L1/06 ,  H04L5/0007 ,  H04L27/2601

Abstract: PROBLEM TO BE SOLVED: To facilitate bandwidth-efficient non-coherent signaling for uplink control channel transmissions.SOLUTION: A communication device utilizes a set of complex orthogonal codewords using non-coherent signaling in a bandwidth efficient manner. A complex orthogonal codeword set can comprise a first subset of codewords having a desirable cross-correlation property and one or more other subsets of codewords that can include expurgated codewords. The expurgated codewords can include discarded codewords and/or codeword pairs that produce a worst-case cross-correlation property. The codeword set and subsets are determined based at least in part on a predefined codeword criterion. A portion of the discarded codewords can be used for other purposes, such as erasure decoding, interference-level estimation, and/or multi-mode control channel operation.

Abstract translation: 要解决的问题：为了促进用于上行链路控制信道传输的带宽有效的非相干信令。 解决方案：通信设备以带宽有效的方式使用非相干信令的一组复杂的正交码字。 复数正交码字集合可以包括具有期望的互相关属性的码字的第一子集和可以包括被排除的码字的一个或多个其他码字子集。 被排除的码字可以包括产生最坏情况互相关属性的丢弃码字和/或码字对。 至少部分地基于预定义的码字标准来确定码字集合和子集。 丢弃的码字的一部分可以用于其它目的，例如擦除解码，干扰电平估计和/或多模式控制信道操作。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012170099A

公开(公告)日：2012-09-06

申请号：JP2012072139

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： DAMNJANOVIC ALEKSANDAR ,  MONTOJO JUAN ,  MALLADI DURGA PRASAD

IPC: H04W74/08 ,  H04W52/16 ,  H04W52/24 ,  H04W52/28 ,  H04W52/32 ,  H04W52/50 ,  H04W72/12

CPC classification number: H04W74/002 ,  H04L1/0029 ,  H04L1/0032 ,  H04L1/0057 ,  H04L5/0053 ,  H04W52/16 ,  H04W52/281 ,  H04W52/325 ,  H04W52/50 ,  H04W74/0833 ,  H04W74/0866

Abstract: PROBLEM TO BE SOLVED: To efficiently transmit a random access preamble and signaling.SOLUTION: Random access signaling may be sent based on at least one transmission parameter having different values for different user equipment (UE) classes. At least one parameter value may be determined based on a particular UE class, and the random access signaling may be sent based on the determined parameter value(s). The random access signaling may be a random access preamble, and the at least one transmission parameter may include a target SNR, a backoff time, and/or a power ramp. The random access preamble may then be sent based on a target SNR value, a power ramp value, and/or a backoff time value for the particular UE class.

Abstract translation: 要解决的问题：有效地发送随机接入前同步码和信令。 解决方案：可以基于对于不同用户设备（UE）类别具有不同值的至少一个传输参数来发送随机接入信令。 可以基于特定UE类来确定至少一个参数值，并且可以基于所确定的参数值来发送随机接入信令。 随机接入信令可以是随机接入前导码，并且所述至少一个传输参数可以包括目标SNR，退避时间和/或功率斜坡。 然后可以基于针对特定UE类的目标SNR值，功率斜坡值和/或退避时间值来发送随机接入前导码。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012034412A

公开(公告)日：2012-02-16

申请号：JP2011234958

申请日：2011-10-26

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

Inventor： TAO RUO ,  DAMNJANOVIC ALEKSANDAR ,  MALLADI DURGA PRASAD

IPC: H04B1/707 ,  H04B1/7107 ,  H04B7/04 ,  H04J99/00

CPC classification number: H04L25/0202 ,  H04B1/71072 ,  H04L25/0224 ,  H04L25/0226 ,  H04L25/0238

Abstract: PROBLEM TO BE SOLVED: To perform channel estimation for wireless communication.SOLUTION: Techniques for deriving channel estimates with different channel estimation filters are described. In one scheme, a filter selection metric is determined for a signal to be recovered, a channel estimation filter is selected based on the filter selection metric, and a channel estimate is derived with the selected channel estimation filter. In another scheme, a first channel estimate is derived with a first channel estimation filter having a first filter response, a first signal is recovered with the first channel estimate, and interference due to the first signal is estimated and removed. A second channel estimate is derived with a second channel estimation filter having a second filter response that is different from the first filter response.

公开(公告)号：JP2011142655A

公开(公告)日：2011-07-21

申请号：JP2011027648

申请日：2011-02-10

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

Inventor： KIM BYOUNG-HOON ,  MALLADI DURGA PRASAD ,  SARKAR SANDIP

IPC: H04J99/00 ,  H04W72/04 ,  H04W28/06 ,  H04W28/18

CPC classification number: H04L1/0036 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0034 ,  H04L1/16 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/0037 ,  H04L5/006

Abstract: PROBLEM TO BE SOLVED: To provide techniques for selecting transmit formats in a manner to account for the degrees of resource reuse for multiple data streams sent simultaneously from multiple antennas. SOLUTION: The degree of resource reuse for each data stream indicates the amount of reuse of resources (e.g., orthogonal codes or subcarriers) observed by the data stream. Interference estimates for the multiple data streams are derived based on an initial resource assignment. The degrees of resource reuse are determined based on the interference estimates and are used to derive at least one correction factor (410). Then, at least one transmit format is selected for the data streams using the at least one correction factor (420). In accordance with a transmit format that indicates the amount of resources in use for the data stream and other parameters, resources are assigned to each data stream (430). COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供以考虑从多个天线同时发送的多个数据流的资源重用程度来选择发送格式的技术。 解决方案：每个数据流的资源重用程度指示由数据流观察到的资源（例如，正交码或子载波）的重用量。 基于初始资源分配导出多个数据流的干扰估计。 基于干扰估计来确定资源重用程度，并且用于导出至少一个校正因子（410）。 然后，使用至少一个校正因子（420）为数据流选择至少一个发送格式。 根据指示数据流和其他参数使用的资源量的发送格式，资源被分配给每个数据流（430）。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011024229A

公开(公告)日：2011-02-03

申请号：JP2010181685

申请日：2010-08-16

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

Inventor： MALLADI DURGA PRASAD ,  WILLENEGGER SERGE D

IPC: H04W52/48 ,  H04B7/005 ,  H04J3/00 ,  H04L1/00 ,  H04L1/18 ,  H04W28/04 ,  H04W52/16 ,  H04W52/22 ,  H04W52/26

CPC classification number: H04W52/228 ,  H04L1/0002 ,  H04L1/1812 ,  H04W52/16 ,  H04W52/267

Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for selecting data rates at which data are transmitted over a primary uplink in the presence of one or more secondary uplink channels.
SOLUTION: The present invention comprises a method including: determining probabilities associated with numbers of attempted transmissions of data; determining the number of times pending data transmissions have been attempted; determining probabilities associated with the data transmissions; and allocating power for transmission of the data in a succeeding frame based upon the associated probabilities. In one embodiment, a highest supportable data rate for a primary uplink is initially selected. Then, power is allocated for a minimum set of channels on the primary uplink. Then, power is allocated for pending data transmissions on the secondary uplink. A maximum power level for the transceiver is then adjusted to account for the allocated power, and the highest supportable data rate for the primary uplink is recomputed.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于在存在一个或多个辅助上行链路信道的情况下选择数据在主上行链路上传输数据速率的方法和装置。 解决方案：本发明包括一种方法，包括：确定与尝试的数据传输数量相关联的概率; 确定已尝试等待数据传输的次数; 确定与数据传输相关联的概率; 并且基于相关联的概率，在后续帧中分配用于传输数据的功率。 在一个实施例中，初始选择用于主上行链路的最高可支持数据速率。 然后，在主上行链路上为最小信道集分配功率。 然后，分配功率用于辅助上行链路上的等待数据传输。 然后调整收发器的最大功率电平以考虑分配的功率，并重新计算主上行链路的最高可支持数据速率。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011010282A

公开(公告)日：2011-01-13

申请号：JP2010113601

申请日：2010-05-17

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

Inventor： MANTRAVADI ASHOK ,  MALLADI DURGA PRASAD ,  AGRAWAL AVNEESH ,  STAMOULIS ANASTASIOS

IPC: H04W52/04 ,  H04J11/00 ,  H04W4/06 ,  H04W52/32

CPC classification number: H04L25/0226 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0058 ,  H04L12/189 ,  H04L25/0232 ,  H04L27/2601 ,  H04W52/32

Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for channel estimation in a system employing different transmission protocols as a broadcast/multicast protocol and a unicast protocol, wherein the number of a pilot tone used for broadcast transmission is greater than the number of a pilot tone used for a unicast transmission and quality of a symbol from a broadcast transmission slot is not deteriorated even when the symbol is adjacent to a symbol from a unicast transmission slot.SOLUTION: In the method, it is determined whether a first time-slot (multicast slot) of one transmission protocol is adjacent to a second time-slot (unicast slot) of another transmission protocol or not. The number of pilot power and/or a pilot sub-carrier is/are increased for an edge symbol of the multicast slot for a purpose of channel estimation using the edge symbol.

Abstract translation: 要解决的问题：提供一种在采用不同传输协议作为广播/多播协议和单播协议的系统中的信道估计的方法和装置，其中用于广播传输的导频音的数量大于 用于单播传输的导频音和来自广播传输时隙的符号的质量即使当符号与单播传输时隙中的符号相邻时也不会恶化。解决方案：在该方法中，确定第一时间 - 一个传输协议的时隙（多播时隙）与另一传输协议的第二时隙（单播时隙）相邻。 为了使用边缘符号的信道估计的目的，导频功率和/或导频子载波的数量增加了多播时隙的边缘符号。

公开(公告)号：JP2010183618A

公开(公告)日：2010-08-19

申请号：JP2010075393

申请日：2010-03-29

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

Inventor： WEI YONGBIN ,  MALLADI DURGA PRASAD ,  BLANZ JOSEF J

IPC: H04L25/02 ,  H04L25/03

CPC classification number: H04B1/7105 ,  H04B2201/70701 ,  H04L25/0228 ,  H04L25/03044 ,  H04L2025/03509 ,  H04L2025/03522 ,  H04L2025/03598 ,  H04L2025/03617

Abstract: PROBLEM TO BE SOLVED: To provide a method for estimating a transmitted signal in a radio communication system. SOLUTION: A radio signal including a pilot channel and at least one other channel is received. The transmitted signal is estimated by using an equalizer and the received radio signal. The equalizer includes a filter having a plurality of taps which are adapted through the use of an adaptive algorithm to use a pilot estimated from the received radio signal. The pilot channel is transmitted to the radio signal including at least one other channel. The estimated pilot is extracted and is supplied to the adaptive algorithm. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于在无线电通信系统中估计发送信号的方法。 解决方案：接收包括导频信道和至少一个其他信道的无线电信号。 通过使用均衡器和接收到的无线电信号来估计所发送的信号。 均衡器包括具有多个抽头的滤波器，其通过使用自适应算法来适配以使用从接收到的无线电信号估计的导频。 导频信道被发送到包括至少一个其他信道的无线电信号。 提取估计的导频并将其提供给自适应算法。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2013258724A

公开(公告)日：2013-12-26

申请号：JP2013150978

申请日：2013-07-19

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

Inventor： MANTRAVADI ASHOK ,  MALLADI DURGA PRASAD ,  AGRAWAL AVNEESH ,  ANASTASIOS STAMOULIS

IPC: H04W52/04 ,  H04J1/00 ,  H04J11/00 ,  H04W4/06 ,  H04W28/18 ,  H04W52/32

CPC classification number: H04L25/0226 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0058 ,  H04L12/189 ,  H04L25/0232 ,  H04L27/2601 ,  H04W52/32

Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for channel estimation in a system employing differing transmission protocols as broadcast/multicast and unicast protocols.SOLUTION: The number of pilot tones used for a broadcast transmission is greater than the number of pilot tones used for a unicast transmission. The channel estimation may be significantly degraded when a symbol from a broadcast transmission slot is adjacent to a symbol from a unicast transmission slot. Therefore, it is determined whether a first time slot of one transmission protocol (multicast slot) is adjacent to a second time slot of another transmission protocol (unicast slot). The pilot power and/or the number of the pilot sub-carriers are/is increased for the edge symbol of the multicast slot for purposes of channel estimation using the edge symbol.

Abstract translation: 要解决的问题：提供在采用不同传输协议作为广播/多播和单播协议的系统中的信道估计的方法和装置。解决方案：用于广播传输的导频音的数量大于使用的导频音数 用于单播传输。 当来自广播传输时隙的符号与来自单播传输时隙的符号相邻时，信道估计可能会显着恶化。 因此，确定一个传输协议（多播时隙）的第一时隙是否与另一传输协议（单播时隙）的第二时隙相邻。 为了使用边缘符号进行信道估计的目的，导频子载波的导频功率和/或导频子载波的数量增加用于多播时隙的边缘符号。

公开(公告)号：JP2013240063A

公开(公告)日：2013-11-28

申请号：JP2013122365

申请日：2013-06-11

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

Inventor： MONTOJO JUAN ,  MALLADI DURGA PRASAD ,  ZHANG XIAOXIA

IPC: H04W72/04 ,  H04L1/16 ,  H04L29/08 ,  H04W72/14

CPC classification number: H04W72/1284 ,  H04L1/0026 ,  H04L1/1607 ,  H04L1/1854 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0094 ,  H04W72/04 ,  H04W72/1257 ,  H04W72/1268 ,  H04W72/1273

Abstract: PROBLEM TO BE SOLVED: To provide a method for assigning uplink acknowledgement (ACK) resources for user equipment (UE) in a wireless communication system.SOLUTION: The method comprises: identifying UE for which persistent assignment of communication resources is to be established; identifying uplink ACK resources used by the identified UE; and communicating, to the UE, assignment of the identified uplink ACK resources together with the persistent assignment of communication resources.

Abstract translation: 要解决的问题：提供一种在无线通信系统中为用户设备（UE）分配上行链路确认（ACK）资源的方法。解决方案：该方法包括：识别要为其建立通信资源的持续分配的UE; 识别由所识别的UE使用的上行链路ACK资源; 以及向所述UE传达所识别的上行链路ACK资源的分配以及所述通信资源的持续分配。

公开(公告)号：JP2013232940A

公开(公告)日：2013-11-14

申请号：JP2013129022

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： BYUN-HON KIM ,  MALLADI DURGA PRASAD

IPC: H04W48/16 ,  H04B1/707 ,  H04W56/00 ,  H04W72/04

CPC classification number: H04L5/0053 ,  H04B1/7083 ,  H04B2201/70701 ,  H04J11/0069 ,  H04L5/0007

Abstract: PROBLEM TO BE SOLVED: To perform synchronization transmissions which support efficient cell search conducted by UE.SOLUTION: Multiple types of synchronization transmissions (PSC, SSC) are placed in a frame with non-uniform intervals. Consecutive synchronization transmissions are conveyed at non-uniform intervals. Multiple levels with non-uniform intervals may be used to convey different types of information with their correspondences. The multiple synchronization transmissions are made in different subframes of the frame, in one of multiple symbol periods in each subframe. One synchronization transmission may be sent in one of multiple possible symbol periods depending, e.g., on a particular group of cell IDs. The intervals between synchronization codes may also be used to convey cyclic prefix length. A secondary synchronization code (SSC) carrying a cell ID may be sent with a predetermined offset from one of the multiple primary synchronization codes (PSC).

Abstract translation: 要解决的问题：执行支持UE执行的高效小区搜索的同步传输。解决方案：将多种类型的同步传输（PSC，SSC）放置在具有不均匀间隔的帧中。 连续同步传输以不均匀的间隔传送。 可以使用具有不均匀间隔的多个级别来传达与其对应的不同类型的信息。 在每个子帧中的多个符号周期中的一个中，在帧的不同子帧中进行多个同步传输。 可以根据例如特定的小区ID组，以多个可能的符号周期之一发送一个同步传输。 同步码之间的间隔也可用于传送循环前缀长度。 可以从多个主同步码（PSC）中的一个预定偏移量发送携带小区ID的辅同步码（SSC）。