A method of improving throughput in a system including persistent assignments

    公开(公告)号:AU2012200054A1

    公开(公告)日:2012-02-02

    申请号:AU2012200054

    申请日:2012-01-04

    Applicant: QUALCOMM INC

    Inventor: GOROKHOV ALEXEI

    Abstract: Methods and systems are disclosed that provide conditional assignments to access terminals over resources assigned to other access terminals. A plurality of resources having persistent assignments to the other access terminals are processed to determine a gap in transmissions. The resources that can be conditionally utilized by the access terminals are determined and a signal indicative of such conditionally assigned resources is transmitted. The access terminals receive the signal and accordingly utilize the conditionally assigned resources. ONE OR MORE 300 CONDITIONALLY NO AVAILABLE? 310 GENERATE MAP OF TRANSMIT CONDITIONALLY ASSIGNED TR- -A RESOURCES TO BE UTILIZED / /J'1 ,\ /6NE OR MORE', 320 ASSIGNED ON N 320MAP, HAVE NO 'THRESHOLD?/ - - - , USERS FROM i YES - - - - - - - MAP 330 TRANSMIT NO-INFORMATION | SIGNAL TO USERS BELOW | THRESHOLD I

    ПЕРЕДАЧА СИМВОЛОВ МАЯКА ПО МНОЖЕСТВУ ПОДНЕСУЩИХ ДЛЯ БЕСПРОВОДНОЙ СВЯЗИ

    公开(公告)号:UA95560C2

    公开(公告)日:2011-08-10

    申请号:UAA201004307

    申请日:2008-09-11

    Applicant: QUALCOMM INC

    Abstract: Внастоящемдокументеописаныспособыдляпередачиинформациис помощьюсимволовмаякав системебеспроводнойсвязи. Водномвариантеосуществленияпередатчикможетотображатьинформациювомножествоподнесущихсредимногочисленныхподнесущих, причеминформациюпереносятс помощьюпозициимножестваподнесущих. Передатчикможетотображатьинформациюпоменьшеймерев одиннебинарныйсимвол. Дальше, передатчикможетопределитькаждуюизмножественногоколичестваподнесущихнаосновеодногонебинарногосимволаилиопределитьвсеподнесущиенаосновеодногонебинарногосимвола. Передатчикможетсгенерироватьсимволмаяка, который

    Pilot transmission in a wireless communication system

    公开(公告)号:AU2008205022B2

    公开(公告)日:2011-06-16

    申请号:AU2008205022

    申请日:2008-01-05

    Applicant: QUALCOMM INC

    Abstract: Techniques for transmitting pilot and traffic data are described. In one aspect, a terminal may scramble its pilot with a scrambling sequence generated based on a set of static and dynamic parameters. The static parameter(s) have fixed value for an entire communication session for the terminal. The dynamic parameter(s) have variable value during the communication session. The terminal may generate a scrambling sequence by hashing the set of parameters to obtain a seed and initializing a PN generator with the seed. The terminal may then generate the pilot based on the scrambling sequence. In another aspect, the terminal may use different scrambling sequences for pilot and traffic data. A first scrambling sequence may be generated based on a first set of parameters and used to generate the pilot. A second scrambling sequence may be generated based on a second set of parameters and used to scramble traffic data.

    Shared signaling channel
    76.
    发明专利

    公开(公告)号:AU2006305744B2

    公开(公告)日:2011-01-20

    申请号:AU2006305744

    申请日:2006-10-27

    Applicant: QUALCOMM INC

    Abstract: A shared signaling channel can be used in an Orthogonal Frequency Division Multiple Access (OFDMA) communication system to provide signaling, acknowledgement, and power control messages to access terminals within the system. The shared signaling channel can be assigned to a predetermined number of sub-carriers within any frame. The assignment of a predetermined number of sub-carriers to the shared signaling channel establishes a fixed bandwidth overhead for the channel. The actual sub-carriers assigned to the channel can be varied periodically, and can vary according to a predetermined frequency hopping schedule. The amount of signal power allocated to the signaling channel can vary on a per symbol basis depending on the power requirements of the communication link. The shared signaling channel can direct each message carried on the channel to one or more access terminals. Unicast messages allow the channel power to be controlled per the needs of individual communication links.

    77.
    发明专利
    未知

    公开(公告)号:AT494713T

    公开(公告)日:2011-01-15

    申请号:AT06788852

    申请日:2006-07-26

    Applicant: QUALCOMM INC

    Abstract: Estimation of channel characteristics and interference level in a time-varying multi-carrier multi-user systems is carried out concurrently. To perform the estimation, a multitude of data symbols and dedicated pilot symbols are transmitted over the channel. The estimate of the interference level is used to estimate the channel parameters.

    Transmission mode selection, precoding and SDMA support

    公开(公告)号:NZ566254A

    公开(公告)日:2010-11-26

    申请号:NZ56625406

    申请日:2006-08-30

    Applicant: QUALCOMM INC

    Abstract: A method for enhancing performance in a wireless communication environment is disclosed. The method comprises: receiving a user preference for a transmission mode; associating the user preference with an entry or entries in a codebook, where the codebook is notified from a base station to a mobile device; and assigning the user to a transmission mode corresponding to the entry or entries. A method of determining a user's preference of a transmission mode is also disclosed. The method comprises: selecting a transmission mode or modes from a codebook to apply, where the codebook is notified from a base station to a mobile device; and transmitting an identifier of the mode or modes selected.

    Systems and methods for beamforming feedback in multi antenna communication systems

    公开(公告)号:NZ579379A

    公开(公告)日:2010-10-29

    申请号:NZ57937906

    申请日:2006-03-24

    Applicant: QUALCOMM INC

    Abstract: A method of resource allocation in a wireless communication system is disclosed. The method includes: generating eigenbeam information in a multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) frequency division duplexed (FDD) system at a wireless communication device; generating channel information regarding a communication channel with respect to the wireless communication device, where the channel information includes channel statistics; determining whether to transmit the eigenbeam information based upon the channel information; and transmitting the eigenbeam information if the channel is determined to be stationary. (62) Divided Out of 561748

    MITIGACION DE INTERFERENCIA DE CORTO PLAZO EN UN SISTEMA DE COMUNICACION INALAMBRICA.

    公开(公告)号:MX2010008492A

    公开(公告)日:2010-10-25

    申请号:MX2010008492

    申请日:2008-11-11

    Applicant: QUALCOMM INC

    Abstract: Se describen técnicas para transmitir datos con mitigación de interferencia de corto plazo en un sistema de comunicación inalámbrica; en un diseño, una estación base en servicio puede enviar un mensaje a una terminal para disparar la mitigación de interferencia de corto plazo; en respuesta, la terminal puede enviar un mensaje para solicitar que al menos una estación base en interferencia reduzca la interferencia en al menos un recurso; cada estación base en interferencia puede determinar un nivel de potencia de transmisión que va a ser utilizado para al menos un recurso y puede enviar un piloto en este nivel de potencia de transmisión; la terminal puede estimar la calidad de canal de al menos un recurso con base en al menos un piloto recibido desde al menos una estación base en interferencia; la terminal puede enviar información indicativa de la calidad de canal estimada a la estación base en servicio; la estación base en servicio puede enviar una transmisión de datos al menos en un recurso a la terminal.

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