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    METHODS AND APPARATUS FOR COMMUNICATING INFORMATION USING DIFFERENT TYPES OF SYMBOLS
    81.
    发明专利
    METHODS AND APPARATUS FOR COMMUNICATING INFORMATION USING DIFFERENT TYPES OF SYMBOLS 未知

    公开(公告)号：CA2701022A1

    公开(公告)日：2009-05-07

    申请号：CA2701022

    申请日：2007-11-01

    Applicant: QUALCOMM INC

    Inventor： RICHARDSON THOMAS ,  LI JUNYI ,  LAROIA RAJIV

    IPC: H04L12/56 ,  H04L27/26

    Abstract: Methods and apparatus implementing communications using different types of symbols, e.g. different characteristic OFDM symbols, at different times for different purposes are described. A first type of symbol is used for control signaling including conveying transmission request signals and/or transmission request response signals. A second type of symbol is used for conveying user data, e.g., traffic signals. The symbol period for a first type symbol is larger than the symbol period for a second type symbol. The tone spacing for a first type symbol is larger than the tone spacing for a second type symbol. The methods and apparatus are well suited for peer to peer communications systems in which a peer to peer communications device operates in a half-duplex mode of operation.

    Methods and apparatus for improved utilization of air link resources in a wireless communications system
    82.
    发明专利
    Methods and apparatus for improved utilization of air link resources in a wireless communications system 未知

    公开(公告)号：AU2008260226A1

    公开(公告)日：2008-12-11

    申请号：AU2008260226

    申请日：2008-05-27

    Applicant: QUALCOMM INC

    Inventor： JIN HUI ,  LAROIA RAJIV ,  RICHARDSON THOMAS ,  LI JUNYI

    IPC: H04L5/02 ,  H04B7/005 ,  H04B7/06 ,  H04B14/02 ,  H04L1/00 ,  H04L25/02 ,  H04L25/49 ,  H04L27/26

    Abstract: Methods and apparatus for improving the utilization of air link resources in a wireless communications system, e.g., an OFDM MIMO system, including a base station with multiple transmit antennas are described. Superposition signaling in the downlink is employed. The superimposed signal includes a first transform result signal and a second lower power signal. The first transform result signal is generated from a first signal, which uses position modulation, e.g., including null components and high power non-null components. Different components of the first transform result signal are directed to different transmit antennas. The first transform result signal communicates information to a first wireless terminal, e.g., a weak receiver. The non-null received elements of the first transform result signal are utilized by a second wireless terminal, e.g., a superior receiver, as pilots to determine a channel estimate. The second wireless terminal uses the determined channel estimate to demodulate received second signals.

    LDPC ENCODING AND DECODING OF PACKETS OF VARIABLE SIZES
    83.
    发明专利
    LDPC ENCODING AND DECODING OF PACKETS OF VARIABLE SIZES 未知

    公开(公告)号：CA2674719A1

    公开(公告)日：2008-07-31

    申请号：CA2674719

    申请日：2008-01-24

    Applicant: QUALCOMM INC

    Inventor： KHANDEKAR AAMOD ,  RICHARDSON THOMAS

    IPC: H03M13/11

    Abstract: Techniques to support low density parity check (LDPC) encoding and decodi ng are described. In an aspect, LDPC encoding and decoding of packets of var ying sizes may be supported with a set of base parity check matrices of diff erent dimensions and a set of lifting values of different powers of two. A b ase parity check matrix G of dimension mB~nB may be used to encode a packet of kB=nB-mB information bits to obtain a codeword of nB code bits. This base parity check matrix may be "lifted" by a lifting value of L to obtain a lif ted parity check matrix H of dimension L~mB~L~nB. The lifted parity check ma trix may be used to encode a packet of up to L~kB information bits to obtain a codeword of L~nB code bits. A wide range of packet sizes may be supported with the set of base parity check matrices and the set of lifting values.

    APPARATUS AND METHOD OF GENERATING AND MAINTAINING HYBRID CONNECTION IDENTIFICATIONS (IDS) FOR PEER-TO-PEER WIRELESS NETWORKS
    84.
    发明申请
    APPARATUS AND METHOD OF GENERATING AND MAINTAINING HYBRID CONNECTION IDENTIFICATIONS (IDS) FOR PEER-TO-PEER WIRELESS NETWORKS 审中-公开
    为对等无线网络生成和维护混合连接标识（IDS）的设备和方法

    公开(公告)号：WO2009009537A3

    公开(公告)日：2009-03-19

    申请号：PCT/US2008069437

    申请日：2008-07-08

    Applicant: QUALCOMM INC ,  RICHARDSON THOMAS ,  TAVILDAR SAURABH ,  WU XINZHOUS ,  LI JUNYI

    Inventor： RICHARDSON THOMAS ,  TAVILDAR SAURABH ,  WU XINZHOUS ,  LI JUNYI

    IPC: H04L25/02 ,  H04L27/26 ,  H04L29/08 ,  H04W8/28 ,  H04W48/16 ,  H04W72/02 ,  H04W76/02 ,  H04W84/18 ,  H04W88/04

    CPC classification number: H04L5/0048 ,  H04L5/0007 ,  H04L5/0091 ,  H04W76/021 ,  H04W76/023

    Abstract: An apparatus and method are disclosed for generating a transmission connection identifier (CID) for a transmitter/receiver pair in a wireless network. The CID may be selected from or mapped to a hybrid CID space comprising a first set of orthogonal CIDs and a second set of non-orthogonal (random or pseudo-random) CIDs. When a transmitter device wants to initiate a peer-to-peer connection with a receiver device, the transmitter and receiver devices attempt to obtain a CID to identify their connection within a traffic channel in a shared frequency space. The first and/or second device attempt to select a CID from the first set of orthogonal CIDs. However, if a CID collision is detected, the first and second devices select their CID from the second set of non-orthogonal CIDs. The selected transmission CID may be used during a time slot or interval to facilitate communications between the first and second devices.

    Abstract translation: 公开了一种用于为无线网络中的发射机/接收机对生成传输连接标识符（CID）的设备和方法。 可以从包括第一组正交CID和第二组非正交（随机或伪随机）CID的混合CID空间中选择或映射CID。 当发射机设备想要发起与接收机设备的对等连接时，发射机和接收机设备试图获得CID以识别它们在共享频率空间中的业务信道内的连接。 第一和/或第二设备试图从第一组正交CID中选择CID。 然而，如果检测到CID冲突，则第一和第二设备从第二组非正交CID中选择它们的CID。 选定的传输CID可以在时隙或间隔期间使用以促进第一和第二设备之间的通信。

    BASE STATION IDENTIFICATION USING BEACON SIGNALS
    85.
    发明申请
    BASE STATION IDENTIFICATION USING BEACON SIGNALS 审中-公开
    基站使用信标信号进行基站识别

    公开(公告)号：WO2008031057A3

    公开(公告)日：2008-05-08

    申请号：PCT/US2007077919

    申请日：2007-09-07

    Applicant: QUALCOMM INC ,  LEONIDOV ALEXANDER ,  RICHARDSON THOMAS

    Inventor： LEONIDOV ALEXANDER ,  RICHARDSON THOMAS

    IPC: H04W48/12

    CPC classification number: H04W48/12 ,  H04L5/0053

    Abstract: Methods and apparatus related to efficiently communicating information, such as base station identification information and/or timing information, via beacon signals are described. Base station identification information and/or timing information is communicated via beacon signals. A beacon coding scheme is utilized in which different base station sectors in the communications system are associated with different sub-sets of beacon tones, e.g., a sub-set of 4 beacon tones. Different beacon tone sub-sets have at most 1 tone in common. A base station sector transmitter transmits a sequence of beacon signals, in accordance with a predetermined beacon tone hopping pattern, in a recurring timing structure, each beacon signal including one of the tones from its associated beacon tone subset. The structure of the beacon tone subsets and the hopping pattern facilitates efficient communication of information, efficient recovery of information being communicated and/or a simple implementation decoder by a wireless terminal.

    Abstract translation: 描述了通过信标信号有效地传送诸如基站识别信息和/或定时信息的信息的方法和装置。 通过信标信号来传送基站识别信息和/或定时信息。 使用信标编码方案，其中通信系统中的不同基站扇区与信标音调的不同子集（例如，4个信标音调的子集）相关联。 不同的信标音子集最多有1个共同点。 基站扇区发射机以循环定时结构根据预定的信标音跳频模式传输信标信号序列，每个信标信号包括来自其相关信标音子集的一个音调。 信标音频子集和跳频模式的结构有助于信息的有效通信，正在通信的信息的有效恢复和/或无线终端的简单的实现解码器。

    PROGRESSIVE INFORMATION BEACON SYMBOLS
    88.
    发明申请
    PROGRESSIVE INFORMATION BEACON SYMBOLS 审中-公开
    渐进信息符号符号

    公开(公告)号：WO2008051965A2

    公开(公告)日：2008-05-02

    申请号：PCT/US2007082216

    申请日：2007-10-23

    Applicant: QUALCOMM INC ,  RICHARDSON THOMAS ,  LI JUNYI ,  PALANKI RAVI

    Inventor： RICHARDSON THOMAS ,  LI JUNYI ,  PALANKI RAVI

    IPC: H04L5/02

    CPC classification number: H04L27/261 ,  H04L5/023 ,  H04L27/2608 ,  H04W48/12

    Abstract: Systems and methodologies are described that facilitate transmitting beacon symbols comprising static and dynamic information about the beacon and/or a transmitter thereof (or substantially any information a beacon transmitter desires to send). In this regard, the beacon symbol transmitter can select a subcarrier of bandwidth for transmitting the beacon symbol where the subcarrier is indicative of data and is in one of a plurality of subcarrier groups related to the total available subcarriers. Thus, the groups can have common virtual subcarriers such that a subcarrier index can be found in each group. In this way, the selected group can indicate additional information that can change based on what group is selected for transmitting a given beacon symbol.

    Abstract translation: 描述了便于发送包括关于信标和/或其发射机（或者基本上信标发射机期望发送的任何信息）的静态和动态信息的信标符号的系统和方法。 就这一点而言，信标符号发射机可以选择用于发送信标符号的带宽的子载波，其中子载波指示数据并且在与全部可用子载波相关的多个子载波组中的一个子载波组中。 因此，这些组可以具有共同的虚拟子载波，使得可以在每个组中找到子载波索引。 以这种方式，所选组可以指示可以基于选择哪个组来发送给定信标符号而改变的附加信息。

    METHODS AND APPARATUS FOR USING TONES IN A WIRELESS COMMUNICATION SYSTEM
    90.
    发明申请
    METHODS AND APPARATUS FOR USING TONES IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    在无线通信系统中使用音调的方法和装置

    公开(公告)号：WO2007121386A2

    公开(公告)日：2007-10-25

    申请号：PCT/US2007066675

    申请日：2007-04-14

    Applicant: QUALCOMM INC ,  LI JUNYI ,  RICHARDSON THOMAS

    Inventor： LI JUNYI ,  RICHARDSON THOMAS

    IPC: H04L5/02

    CPC classification number: H04L5/023 ,  H04L27/261

    Abstract: Methods and apparatus for allocating tones for communications in the strip-symbol periods in an OFDM system are described. In a strip-symbol, the signal is transmitted using the tones in a tone subset, which is selected from a predetermined set of tone subsets according to a fixed schedule sequence. Adjacent base stations and sectors use the same set of tone subsets but different schedule sequence to minimize the number of collisions between the tone subsets used in adjacent sectors and neighboring cells.

    Abstract translation: 描述在OFDM系统中的带符号周期中分配用于通信的音调的方法和装置。 在条形符号中，使用音调子集中的音调发送信号，该音调子集根据固定的调度序列从预定的音调子集组中选择。 相邻的基站和扇区使用相同的一组音调子集，但是使用不同的调度序列来最小化在相邻扇区和相邻小区中使用的音调子集之间的冲突次数。

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