公开(公告)号：JP2012105272A

公开(公告)日：2012-05-31

申请号：JP2011243649

申请日：2011-11-07

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

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

IPC: H04W4/06 ,  H04B7/04 ,  H04J1/00 ,  H04J11/00 ,  H04W48/12 ,  H04W72/04

CPC classification number: H04L5/023 ,  H04L27/2602 ,  H04W48/12

Abstract: PROBLEM TO BE SOLVED: To support mobile stations incapable of demodulating the entire bandwidth or capable of demodulating a less bandwidth than the entire bandwidth.SOLUTION: Users are scheduled on a less bandwidth than the entire bandwidth. Further, a certain user can be scheduled on a more bandwidth than other users.

Abstract translation: 要解决的问题：为了支持不能解调整个带宽或能够解调比整个带宽更少带宽的移动站。

解决方案：用户的带宽比整个带宽要少。 此外，可以以比其他用户更多的带宽来调度某个用户。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012075095A

公开(公告)日：2012-04-12

申请号：JP2011198417

申请日：2011-09-12

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

Inventor： SUTIVONG ARAK ,  AGRAWAL AVNEESH ,  ALEXEI GOROKHOV ,  TEAGUE EDWARD HARRISON

IPC: H04W28/18 ,  H04B1/707 ,  H04J1/00 ,  H04J3/00 ,  H04J11/00 ,  H04J99/00 ,  H04W72/08 ,  H04W72/12

CPC classification number: H04L25/0202 ,  H04W72/1226 ,  H04W72/1289

Abstract: PROBLEM TO BE SOLVED: To provide techniques to more efficiently transmit pilots on demand on a reverse link.SOLUTION: Pilots are transmitted on demand on a reverse link and used for channel estimation and data transmission on a forward link. A base station selects at least one terminal for on-demand pilot transmission on the reverse link (210). Each of the at least one selected terminal is a candidate for receiving data transmission on the forward link. The base station assigns each of the at least one selected terminal with a time-frequency allocation (212), which may be for a wideband pilot, a narrowband pilot, or some other type of pilot. The base station receives and processes an on-demand pilot transmitted from each of the at least one selected terminal (216) and derives a channel estimate for the terminal based on the received pilot (218).

Abstract translation: 要解决的问题：提供技术以在反向链路上根据需要更有效地发射飞行员。 解决方案：飞行员根据需要在反向链路上传输，用于前向链路上的信道估计和数据传输。 基站在反向链路（210）上选择至少一个用于按需导频发送的终端。 所述至少一个所选终端中的每一个是用于在前向链路上接收数据传输的候选。 基站将至少一个所选择的终端中的每一个分配给可以用于宽带导频，窄带导频或某种其他类型的导频的时间 - 频率分配（212）。 基站接收并处理从至少一个所选终端（216）中的每一个发送的按需导频，并且基于接收到的导频（218）导出终端的信道估计。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012050093A

公开(公告)日：2012-03-08

申请号：JP2011197205

申请日：2011-09-09

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

Inventor： AYMAN FAWZY NAGUIB ,  AGRAWAL AVNEESH ,  ARAQ STIBON

IPC: H04W72/04 ,  G01R31/08 ,  H04B7/005 ,  H04J11/00 ,  H04L20060101 ,  H04L27/26 ,  H04W72/08

CPC classification number: H04W52/24 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0058 ,  H04L5/006

Abstract: PROBLEM TO BE SOLVED: To provide a system and method for power control and scheduling of sub-carriers in an OFDM communication system.SOLUTION: A receiver dynamic range can be minimized by a power control loop that attempts to maintain received power over a noise floor in a predetermined range. If the received power relative to the noise floor in allocated sub-carriers exceeds the predetermined range and the total received power is at a minimum, a scheduling system allocates an additional sub-carrier to a communication link. Additionally, if the received power relative to the noise floor is less than the predetermined range minimum and the total received power is at a maximum, the scheduling system de-allocates the sub-carrier from the communication link. The scheduling system may also adjust an encoding rate to maintain a relatively constant symbol rate in each of the sub-carriers.

Abstract translation: 要解决的问题：提供一种用于OFDM通信系统中的子载波的功率控制和调度的系统和方法。 解决方案：可以通过功率控制回路来最小化接收机动态范围，该功率控制环路试图将接收到的功率保持在预定范围内的本底噪声。 如果所分配的子载波中相对于本底噪声的接收功率超过预定范围并且总接收功率处于最小，则调度系统向通信链路分配附加子载波。 此外，如果相对于本底噪声的接收功率小于预定范围最小值并且总接收功率处于最大值，则调度系统从通信链路去分配子载波。 调度系统还可以调整编码速率以在每个子载波中维持相对恒定的符号率。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011151818A

公开(公告)日：2011-08-04

申请号：JP2011032564

申请日：2011-02-17

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

Inventor： AGRAWAL AVNEESH ,  PRAKASH RAJAT

IPC: H04W68/02 ,  H04J11/00 ,  H04J99/00 ,  H04W68/00

CPC classification number: H04W68/00

Abstract: PROBLEM TO BE SOLVED: To provide a quick paging channel with reduced probability of missed page.
SOLUTION: The quick paging channel in a random-connection radio communication system includes at least one bit in a quick paging frame, which can discriminate the existence of a paging message to an access terminal or an access terminal group. A quick paging bit to discriminate the existence of the paging message to the first access terminal is encoded together with one or more quick paging bits corresponding to one or more additional access terminals to constitute one or more forward error correction bit. The quick paging bit encoded at the same time is broadcast to a plurality of access terminals, by time-division multiplexing of the quick paging frame together with an additional information frame. Moreover, a paging block can be compressed.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一个快速寻呼信道，丢失页面的概率降低。 解决方案：随机连接无线电通信系统中的快速寻呼信道包括快速寻呼帧中的至少一个比特，其可以将寻呼消息的存在区分为接入终端或接入终端组。 用于将寻呼消息的存在区分为第一接入终端的快速寻呼位与一个或多个对应于一个或多个附加接入终端的快速寻呼位一起编码以构成一个或多个前向纠错位。 通过快速寻呼帧与附加信息帧的时分复用，将同时编码的快速寻呼位广播到多个接入终端。 此外，可以压缩寻呼块。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010239627A

公开(公告)日：2010-10-21

申请号：JP2010109108

申请日：2010-05-11

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

Inventor： GORE DHANANJAY ,  AGRAWAL AVNEESH ,  KADOUS TAMER

IPC: H04J99/00 ,  H04B7/04 ,  H04B7/06 ,  H04J11/00 ,  H04L25/02 ,  H04L27/26

CPC classification number: H04L25/0226 ,  H04B7/0452 ,  H04B7/0684 ,  H04L27/2613

Abstract: PROBLEM TO BE SOLVED: To provide efficient pilot transmission system for multi-antenna communication systems. SOLUTION: In one pilot transmission system, a first set of T scaled pilot symbols is generated with a first training vector and transmitted (e.g., continuously) from T transmit antennas, where T>1. If MIMO receiver(s) are to be supported by the system, then at least T-1 additional sets of T scaled pilot symbols are generated with at least T-1 additional training vectors and transmitted from the T transmit antennas. The training vectors are for different (e.g., orthogonal) spatial directions. Each MISO receiver can estimate its MISO channel based on the first set of scaled pilot symbols. Each MIMO receiver can estimate its MIMO channel based on the first and additional sets of scaled pilot symbols. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为多天线通信系统提供有效的导频传输系统。 解决方案：在一个导频传输系统中，利用第一训练向量生成第一组T比例导频符号，并从T个发射天线发射（例如，连续地），其中T> 1。 如果MIMO接收机将被系统支持，则至少T-1个额外的T比例导频符号集合至少产生T-1个附加训练向量并从T个发射天线发射。 训练矢量用于不同的（例如正交的）空间方向。 每个MISO接收机可以基于第一组缩放的导频符号来估计其MISO信道。 每个MIMO接收机可以基于第一个和额外的缩放导频符号集来估计其MIMO信道。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2009089378A

公开(公告)日：2009-04-23

申请号：JP2008236194

申请日：2008-09-16

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: H04W28/18 ,  H03M13/29 ,  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 a method and apparatus for using different modulation schemes for retransmission of a packet. SOLUTION: A plurality of modulation schemes are used for a single packet, so that each data packet is processed and transmitted in up to T(T>1) blocks. The plurality of modulation schemes are used for the T blocks. A transmitter encodes a data packet to generate code bits. The transmitter then forms a block of code bits using the code bits generated for the packet, determines the modulation scheme to use for the block (e.g., based on a mode/rate), maps the code bits for the block based on the modulation scheme to obtain data symbols, and processes the block of data symbols and transmits the block 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 complementary processing to receive and decode the packet. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于使用不同调制方案来重传分组的方法和装置。 解决方案：对于单个分组使用多个调制方案，使得每个数据分组被处理并在多达T（T> 1）个块中发送。 多个调制方案用于T块。 发射机对数据包进行编码以产生码位。 然后，发射机使用为分组生成的码位形成码位块，确定用于块的调制方案（例如，基于模式/速率），基于调制方案映射块的码位 以获得数据符号，并处理数据符号块并将该块发送到接收器。 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）2009，JPO＆INPIT

公开(公告)号：JP2013179608A

公开(公告)日：2013-09-09

申请号：JP2013078817

申请日：2013-04-04

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: H04J11/00 ,  H04L1/00 ,  H04L12/70 ,  H04W72/04

CPC classification number: H04L47/15 ,  H04L47/70

Abstract: PROBLEM TO BE SOLVED: To provide a communication system for efficiently transmitting a packet.SOLUTION: A packet may be partitioned into multiple subpackets, and each subpacket may be encoded separately. The subpackets are mapped to a subset of assigned resources. The resources include multiple tiles, each tile corresponding to a block of time frequency resources. The subpackets are mapped to an equal number of tiles to achieve similar decoding performance; each subpacket is mapped to at least Ntiles to achieve a certain minimum diversity order for the subpacket; and/or each subpacket is mapped to a subset of the multiple tiles so that the subpacket can be decoded without having to demodulate all of the tiles.

Abstract translation: 要解决的问题：提供用于有效发送分组的通信系统。解决方案：分组可以被划分为多个子分组，并且每个子分组可以被分别编码。 子包映射到分配资源的子集。 资源包括多个瓦片，每个瓦片对应于一段时间频率资源。 子包被映射到相同数量的瓦片以实现类似的解码性能; 每个子分组映射到至少Ntiles以实现子分组的一定的最小分集顺序; 和/或每个子分组被映射到多个分块的子集，使得子分组可以被解码而不必解调所有的分块。

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：JP2012100311A

公开(公告)日：2012-05-24

申请号：JP2011280158

申请日：2011-12-21

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

Inventor： SUTIVONG ARAK ,  AGRAWAL AVNEESH

IPC: H04J11/00 ,  H04B1/713 ,  H04J1/00 ,  H04J13/00

CPC classification number: H04L5/0021 ,  H04B1/692 ,  H04B1/713 ,  H04J13/18

Abstract: PROBLEM TO BE SOLVED: To provide multi-carrier code division multiple access (MC-CDMA) being able to be used in an uplink of a wireless communication system.SOLUTION: Data symbols of each terminal from a modulator 214 are spread using a different set of orthogonal codes assigned to each terminal by an OFDM modulator 220, and each data symbol is mapped to a modulation symbol in a time-frequency block so that the data symbol is in a group not overlapping with a hopping duration based on FH sequence. An orthogonal waveform is generated and transmitted by an IFFT 224.

Abstract translation: 要解决的问题：提供能够在无线通信系统的上行链路中使用的多载波码分多址（MC-CDMA）。 解决方案：使用由OFDM调制器220分配给每个终端的不同的正交码集合来扩展来自调制器214的每个终端的数据符号，并且将每个数据符号映射到时间 - 频率块中的调制符号，从而 数据符号在不与基于FH序列的跳跃持续时间重叠的组中。 正交波形由IFFT 224生成并传输。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