Method and apparatus for improving reception in multiple access communication systems

    公开(公告)号:AU2002212002C1

    公开(公告)日:2009-06-18

    申请号:AU2002212002

    申请日:2001-10-05

    Inventor: MANTHA RAMESH

    Abstract: An apparatus, system and method for improving the SNR of a desired signal received at a receiver in a multiple access communication system is disclosed. The apparatus, system and method subtracts known or knowable signals from the total signal received at the receiver and the desired signal is then determined from the result of the subtraction. The known, or knowable, signals can be synchronization signals or other interfering channel signals transmitted by the transmitter, such as a wireless network base station, serving the receiver, such as a subscriber station in such a wireless network, and/or can be such signals transmitted by another transmitter, such as an adjacent base station, or an adjacent sector in multi-sector systems.

    Method and system for provisioning services in a telecommunications network

    公开(公告)号:AU2002252902B2

    公开(公告)日:2007-10-04

    申请号:AU2002252902

    申请日:2002-04-25

    Abstract: The present invention is a telecommunication system, comprising of at least one base station connected to a telecommunication network, a plurality of subscriber stations each cooperating with the base station to establish a connection between a user device operably connected to the subscriber station and the telecommunication network. The base station is also connected with a subscriber database to maintain the subscriber records that contain provisioning information for services, features and account information, and an interactive response system operable to create and modify a subscriber record in the subscriber database in response to input received over the connection from a subscriber using the user device to select services, features and account information for the subscriber station.

    SYSTEM, APPARATUS AND METHOD FOR UPLINK RESOURCE ALLOCATION

    公开(公告)号:AU2003246474B2

    公开(公告)日:2007-06-28

    申请号:AU2003246474

    申请日:2003-07-08

    Abstract: A system, method and apparatus for managing uplink radio resources. The RRAM employs selective rate reduction to ensure resources for subscriber stations depending on individual QoS requirements. In response to a request for a new DDCH, the RRAM can drop a subscriber station at a low data rate and no media reservations. In response to traffic measurement reports from the subscriber stations, the RRAM attempts to increase or decrease the data rate of a subscriber station. When there are insufficient uplink resources, RRAM tries to lower the rate of a higher rate subscriber station. Searching for subscriber stations to lower, RRAM starts at the highest rate and continues to search lower data rates until a suitable candidate is found. RRAM also reserves resources for subscriber stations that will not be reallocated to other subscriber stations.

    Quality dependent data communication channel

    公开(公告)号:AU2001259993B2

    公开(公告)日:2006-12-07

    申请号:AU2001259993

    申请日:2001-05-16

    Inventor: MANTHA RAMESH

    Abstract: A data channel to transmit data from a transmitter to one or more of a plurality of receivers, each of which intermittently reports to the transmitter its reception quality of signals transmitted by the transmitter. The transmitter transmits the data in frames which include at least one block. Each block includes the same predefined number of traffic symbols, and includes a header portion and a payload portion. The header portion of each block is packaged for transmission in a robust manner, enhancing the probability that each receiver will be able to recover it and the header portion includes information required to recover the payload portion. The payload portion is, in accordance with the reception quality reported by the intended receiver, packaged to make efficient use of the transmission resources while ensuring a reasonable probability that the intended receiver will be able to recover the payload. The header portion can include indications of the modulation, forward error correction and repetition utilized to package the payload and can indicate the length of the payload.

    METODO Y APARATO PARA AJUSTAR EN FORMA ELECTRICA UN RETARDO EN SISTEMAS DE FRECUENCIA DE RADIO.

    公开(公告)号:MXPA06003194A

    公开(公告)日:2006-06-23

    申请号:MXPA06003194

    申请日:2004-09-21

    Inventor: BLODGETT JAMES R

    Abstract: Un aparato y un metodo para proporcionar un retardo RF electricamente ajustable en donde un divisor divide una senal de entrada en dos trayectos de senal, un trayecto de senal proporcionar un retardo fijo a un numero entero de longitudes de onda de una frecuencia central deseada y ambos trayectos de senal proporcionan la atenuacion electricamente ajustable. Un combinador combina las senales que pasan a traves de los trayectos de senal, de modo que la suma de la atenuacion electricamente ajustable provista por los trayectos de senal suman la unidad, por lo cual la senal de entrada se retrasa por un tiempo ajustable, dependiendo de las atenuaciones provistas por los trayectos de senal.

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