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公开(公告)号：NO20111586A
公开(公告)日：2002-11-22
申请号：NO20111586
申请日：2011-11-18
Applicant: QUALCOMM INC
Inventor： WALTON JAY R , WALLACE MARK , HOLTZMANN JACK , ANTONIO FRANKLIN P
IPC: H04J1/05 , H04W28/16 , H04B7/005 , H04B7/26 , H04J3/00 , H04J11/00 , H04W52/24 , H04W52/26 , H04W52/34
CPC classification number: H04W52/343 , H04B17/336 , H04B17/382 , H04W52/24 , H04W52/241 , H04W52/244 , H04W52/267 , H04W52/286 , H04W52/346 , H04W72/1231 , H04W72/1242 , H04W72/1252
Abstract: In some aspects, each cell in the communications system can be designed to operate in accordance with a set of back-off factors that identify the reductions in peak transmit power levels for the channels associated with the back-off factors. The back-off factors are defined to provide the required power to a large percentage of the users while reducing the amount of interference. In some other aspects, the cells operate using an adaptive reuse scheme that allows the cells to efficiently allocate and reallocate the system resources to reflect changes in the system. A reuse scheme is initially defined and resources are allocated to the cells. During operation, changes in the operating conditions of the system are detected and the reuse scheme is redefined as necessary based on the detected changes. For example, the loading conditions of the cells can be detected, and the resources can be reallocated and/or the reuse scheme can be redefined. In yet other aspects, techniques are provided to efficiency schedule data transmissions and to assign channels to users. Data transmissions can be scheduled based on user priorities, some fairness criteria, system requirements, and other factors. Users are assigned to available channels based on a number of channel assignment schemes. Channel metrics are also provided, which can be used to prioritize users and for channel assignments.
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公开(公告)号：AU7341101A
公开(公告)日：2002-01-21
申请号：AU7341101
申请日：2001-07-11
Applicant: QUALCOMM INC
Inventor： JALALI AHMAD , WALTON JAY R , WALLACE MARK
IPC: H04J11/00 , H04B7/06 , H04L1/00 , H04L1/06 , H04L5/02 , H04L12/801 , H04L12/851 , H04L27/26 , H04L27/00
Abstract: Transmitter and receiver units for use in an OFDM communications system and configurable to support multiple types of services. The transmitter unit includes one or more encoders, a symbol mapping element, and a modulator. Each encoder receives and codes a respective channel data stream to generate a corresponding coded data stream. The symbol mapping element receives and maps data from the coded data streams to generate modulation symbol vectors, with each modulation symbol vector including a set of data values used to modulate a set of tones to generate an OFDM symbol. The modulator modulates the modulation symbol vectors to provide a modulated signal suitable for transmission. The data from each coded data stream is mapped to a respective set of one or more "circuits".; Each circuit can be defined to include a number of tones from a number of OFDM symbols, a number of tones from a single OFDM symbol, all tones from one or more OFDM symbols, or some other combination of tones. The circuits can have equal size or different sizes. Different circuits can be used for full rate data (e.g., active speech) and low rata data (e.g., silence periods).
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公开(公告)号：CA2404055A1
公开(公告)日：2001-10-11
申请号：CA2404055
申请日：2001-03-20
Applicant: QUALCOMM INC
Inventor： HOLTZMAN JACK , WALLACE MARK , WALTON JAY R , ANTONIO FRANKLIN P
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公开(公告)号：WO03058871A8
公开(公告)日：2003-11-13
申请号：PCT/US0241756
申请日：2002-12-31
Applicant: QUALCOMM INC
Inventor： WALTON JAY ROD , KETCHUM JOHN W , WALLACE MARK , MEDVEDEV IRINA
CPC classification number: H04L5/0023 , H04L1/06 , H04L5/0042 , H04L5/0044 , H04L5/0058 , H04L5/006
Abstract: Techniques to assign terminals for data transmission in a MIMO-OFDM system. A scheduler forms sets of terminals, called a hypothesis, for data transmission for each of a number of frequency bands. One or more sub-hypotheses may be further formed for each hypothesis, with each sub-hypothesis corresponding to (1) specific assignments of transmit antennas to the terminal(s) in the hypothesis, or, (2) a specific order for processing the uplink data transmissions from the terminal(s). The performance of each sub-hypothesis is then evaluated. One sub-hypothesis is then selected for each frequency band based on the evaluated performance, and, the set of terminals in each selected sub-hypothesis are then scheduled for data transmission on the corresponding frequency band.
Abstract translation: 在MIMO-OFDM系统中分配用于数据传输的终端的技术。 调度器形成用于多个频带中的每一个的数据传输的称为假设的终端集合。 可以针对每个假设进一步形成一个或多个子假设，其中每个子假设对应于（1）假设中的发射天线到终端的特定分配，或者（2）用于处理 来自终端的上行链路数据传输。 然后评估每个子假设的性能。 然后根据所评估的性能为每个频带选择一个子假设，然后调度每个选择的子假设中的终端集合以在相应的频带上进行数据传输。
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65.发明申请MULTIPLEXING OF REAL TIME SERVICES AND NON-REAL TIME SERVICES FOR OFDM SYSTEMS 审中-公开实时服务的多路复用和OFDM系统的非实时时间服务
公开(公告)号：WO0205506A3
公开(公告)日：2002-08-29
申请号：PCT/US0122010
申请日：2001-07-11
Applicant: QUALCOMM INC
Inventor： JALALI AHMAD , WALTON JAY R , WALLACE MARK
IPC: H04J11/00 , H04B7/06 , H04L1/00 , H04L1/06 , H04L5/02 , H04L12/801 , H04L12/851 , H04L27/26
CPC classification number: H04L47/24 , H04L1/06 , H04L1/0618 , H04L1/0656 , H04L5/0023 , H04L5/0037 , H04L5/0046 , H04L5/0048 , H04L5/006 , H04L5/0064 , H04L25/0226 , H04L27/2602 , H04L27/261 , H04L27/2637 , H04L27/2653 , H04L47/10 , H04L2001/0098
Abstract: Transmitter and receiver units for use in an OFDM communications system and configurable to support multiple types of services. The transmitter unit includes one or more encoders, a symbol mapping element, and a modulator. Each encoder receives and codes a respective channel data stream to generate a corresponding coded data stream. The symbol mapping element receives and maps data from the coded data streams to generate modulation symbol vectors, with each modulation symbol vector including a set of data values used to modulate a set of tones to generate an OFDM symbol. The modulator modulates the modulation symbol vectors to provide a modulated signal suitable for transmission. The data from each coded data stream is mapped to a respective set of one or more "circuits". Different circuits can be used for full rate data (e.g., active speech) and low rata data (e.g., silence periods).
Abstract translation: 发射机和接收机单元，用于OFDM通信系统并可配置为支持多种类型的业务。 发射机单元包括一个或多个编码器，符号映射元件和调制器。 每个编码器接收和编码相应的信道数据流以生成对应的编码数据流。 符号映射元件接收并映射来自编码数据流的数据以产生调制符号向量，其中每个调制符号向量包括用于调制一组音调以生成OFDM符号的一组数据值。 调制器调制调制符号向量以提供适于传输的调制信号。 来自每个编码数据流的数据被映射到一个或多个“电路”的相应集合。 不同的电路可以用于全速率数据（例如，活动语音）和低比特数据（例如，静默时段）。
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Patent Agency Ranking66.发明专利
公开(公告)号：DK2256952T3
公开(公告)日：2020-02-10
申请号：DK10176952
申请日：2002-03-22
Applicant: QUALCOMM INC
Inventor： LING FUNYUN , WALTON JAY R , HOWARD STEVEN J , WALLACE MARK , KETCHUM JOHN W
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67.发明专利
公开(公告)号：DK2256953T3
公开(公告)日：2019-07-22
申请号：DK10176954
申请日：2002-03-22
Applicant: QUALCOMM INC
Inventor： LING FUNYUN , WALTON JAY R , HOWARD STEVEN J , KETCHUM JOHN W , WALLACE MARK
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公开(公告)号：HUE035695T2
公开(公告)日：2018-05-28
申请号：HUE05711350
申请日：2005-01-11
Applicant: QUALCOMM INC
Inventor： WALTON JAY , KETCHUM JOHN , WALLACE MARK , HOWARD STEVEN
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公开(公告)号：BRPI0206877B1
公开(公告)日：2016-03-22
申请号：BR0206877
申请日：2002-01-23
Applicant: QUALCOMM INC
Inventor： LING FUYUN , FERNANDEZ IVAN , WALTON JAY R , WALLACE MARK , SINDHUSHAYANA NAGABHUSHANA T
Abstract: "esquema de codificação para um sistema de comunicação sem fio". técnicas de codificação para um (por exemplo, ofdm) sistema de comunicação capaz de transmitir dados em vários canais de transmissão em diferentes taxas de bit de informação com base na snr alcançada do canal. um código base é utilizado em combinação com o puncionamento comum ou variável para alcançar diferentes taxas de codificação necessárias para os canais de transmissão. os dados (isso é, bits de informação) para uma transmissão de dados são codificados com o código base, e os bits codificados para cada: canal (ou grupo de canais com capacidades de transmissão similares) são puncionados para alcançar a taxa de codificação necessária. os bits codificados podem ser intercalados (por exemplo, para combater o desvanecimento e remover a correlação entre os bits codificados em cada símbolo de modulação) antes do puncionamento. os bits de códigos não-puncionados são agrupados em símbolos não-binários (por exemplo, utilizando o mapeamento de gray). o símbolo de modulação pode ser pré-condicionado antes da transmissão.
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公开(公告)号：BRPI0209636B1
公开(公告)日：2015-12-01
申请号：BR0209636
申请日：2002-05-15
Applicant: QUALCOMM INC
Inventor： WALTON JAY R , WALLACE MARK , HOWARD STEVEN J
Abstract: "método e equipamento para alocar recursos em um sistema de comunicação de múltiplas entradas e múltiplas saídas (mimo)". são descritas técnicas para programar transmissão de dados de downlink a diversos terminais em um sistema de comunicação sem fio. em um método, um ou mais conjuntos de terminais são formados para possível transmissão de dados, com cada conjunto incluindo uma única combinação de um ou mais terminais e correspondendo a uma hipótese a ser avaliada. podem ser formadas adicionalmente uma ou mais sub-hipóteses para cada hipótese, com cada sub-hipótese correspondendo a designações específicas de diversas antenas transmissoras para o um ou mais terminais na hipótese. o desempenho de cada sub-hipótese é a seguir avaliado e uma das sub-hipóteses avaliadas é selecionada com base em seu desempenho. os terminais na sub-hipótese selecionada são a seguir programados para transmissão de dados e os dados são a seguir codificados, modulados e transmitidos a cada terminal programado a partir de uma ou mais antenas transmissoras designadas para o terminal.
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