METHOD AND APPARATUS FOR MULTI-USER RESOURCE MANAGEMENT IN RADIO COMMUNICATION SYSTEM

    公开(公告)号:JP2002016961A

    公开(公告)日:2002-01-18

    申请号:JP2001140919

    申请日:2001-05-11

    Abstract: PROBLEM TO BE SOLVED: To provide an efficient allocation of radio system resources for user application requirements in the management of system resource parameters in a radio communication system. SOLUTION: The apparatus for managing multi-user resources optimizes transmission resources while satisfying a required QoS reference of a user application providing a service, operates to determine allocation of radio transmission resources for each user application to which a radio system provides a service, determines total allocated transmission resources after transmission resources are allocated to all user applications, and compares the total allocated transmission resources with the upper limit transmission resource level of the radio system. In proportion to an initial allocation provided to each user application, a user application providing a service utilizes a part of difference between the upper limit transmission resource level and a currently allocated level.

    DEVICE AND METHOD FOR CHANNEL ESTIMATION USED FOR LINK ADAPTATION BY ERRONEOUS FEEDBACK

    公开(公告)号:JP2002152094A

    公开(公告)日:2002-05-24

    申请号:JP2001275978

    申请日:2001-09-12

    Abstract: PROBLEM TO BE SOLVED: To provide a channel estimator constituted of a plurality of different filters having the sets of different filter coefficients which are previously calculated. SOLUTION: In a method and a device for the channel estimator, a plurality of different filters which have the different coefficients and are selectively connected to the input and the output of the channel estimating unit are provided. The channel estimator is provided with a switching circuit which receives an error signal and performs a switching among a plurality of filters based on the value of the error signal with respect to an established threshold. The error signal is given from a decoder connected to a communication channel estimated by the device and the method.

    4.
    发明专利
    未知

    公开(公告)号:BR0003994A

    公开(公告)日:2001-04-17

    申请号:BR0003994

    申请日:2000-09-05

    Inventor: ZHU PENGFEI LU MING

    Abstract: A method and apparatus for adaptively adjusting the power of a probe signal to be transmitted by user equipment based on a characteristic of received signals and system constants so as to increase the likelihood that the probe signal will be detected by system equipment of a communication system. The Doppler shift of a received pilot signal is derived and an adjustment parameter is calculated based on the Doppler shift, time interval between successive probe transmissions and system constants. The adjustment parameter is applied to the probe signal to be transmitted to compensate for the effects of fading to be experienced by the probe signal to be transmitted.

    METHOD AND APPARATUS FOR MULTI-USER RESOURCE MANAGEMENT IN WIRELESS COMMUNICATION SYSTEMS

    公开(公告)号:CA2342282A1

    公开(公告)日:2001-11-11

    申请号:CA2342282

    申请日:2001-03-26

    Abstract: A method and apparatus are provided for dynamically controlling a high speed wireless communication system to optimize utilization of system resources and thereby increase system throughput. The invention operates to determine an allocation of wireless transmission resources to each user application serve d by the wireless system in a manner to optimize transmission resources while meeting required QoS criteria for they served user application. After all user applications have been provided a transmission resource allocation in this manner, the total transmission resources so allocated are determined and compared with a ceili ng transmission resource level for the wireless system. A portion of the difference between the ceiling and currently allocated transmission resource levels is then made available, according to the invention, to the served user applications in proportion to the initial allocation provided each user application.

    9.
    发明专利
    未知

    公开(公告)号:BR0003997A

    公开(公告)日:2001-04-17

    申请号:BR0003997

    申请日:2000-09-05

    Abstract: A method for adjusting a protocol signal to be transmitted based on adjustments made to a detected protocol signal. The detected protocol signal carries adjustment information made to such signal to increase the likelihood of the signal being detected. The adjustment information is retrieved from the detected protocol signal and is used to adjust at least one characteristic of the protocol signal to be transmitted thereby also increasing the likelihood that such a signal (i.e., protocol signal to be transmitted) will be detected.

    10.
    发明专利
    未知

    公开(公告)号:BR0003985A

    公开(公告)日:2001-04-17

    申请号:BR0003985

    申请日:2000-09-04

    Abstract: A method for adjusting the power of a probe signal to be transmitted by user equipment to system equipment of a wireless communication system. The power of the probe signal is adjusted based on information received by the user equipment from the system equipment. The information is a local mean of RSSI at the system equipment. The adjusted probe signal is transmitted and thus has an increased likelihood of being detected by the system equipment. Also, the power available for transmitting the probe signal is used more efficiently when the probe signal is adjusted in accordance with the local mean information received by the user equipment from system equipment of the wireless communication system.

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