POWER CONTROL OF DOWNLINK SHARED CHANNEL (DSCH)

    公开(公告)号:AU2002340262A1

    公开(公告)日:2003-06-10

    申请号:AU2002340262

    申请日:2002-10-18

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus provides for efficient use of communication resources in a CDMA communication system (100) by selecting, at a time prior to a first time period (401), a first mobile station to receive transmission during the first time period (401) on a downlink shared channel, and selecting, at a time prior to the first time period (401), a second mobile station to receive transmission during a second time period (402) on the downlink shared channel. Transmission power level of a downlink shared control channel is determined for transmission to the second mobile station during an overlapping time period (403) with the first time period (401), and the transmission power level of the downlink shared channel for transmission during the first time period (401) is determined based on at least the determined transmission power level of the downlink shared control channel during the overlapping time period (403).

    TRANSPORT FORMAT COMBINATION SELECTION FOR COMPRESSED MODE IN A W-CDMA SYSTEM

    公开(公告)号:CA2466910A1

    公开(公告)日:2003-05-22

    申请号:CA2466910

    申请日:2002-11-12

    Applicant: QUALCOMM INC

    Abstract: Techniques for determining valid (i.e., supported) TFCs from among all configured TFCs for normal and compressed modes. These techniques maintain sufficient historical information such that "TFC qualification" may be accurately performed. In a first scheme, Tx_power_requirement states are maintained for different combinations of each TFC. One combination is applicable for each TFC at each TFC interval, and valid TFCs are determined from applicable combinations in the proper state(s). In a second scheme, two Tx_power_requirement states are maintained for each TFC for the normal and compressed modes. In a third scheme, a single Tx_power_requirement state is maintained for each TFC for both modes based on a particular relative power requirement. In a fourth scheme, Tx_power_requirement states are maintained for a set of relative "bins" that cover the total range of required transmit power for all TFCs. And in a fifth scheme, a set of relative power requireme nt thresholds are maintained.

    65.
    发明专利
    未知

    公开(公告)号:NO20032175D0

    公开(公告)日:2003-05-14

    申请号:NO20032175

    申请日:2003-05-14

    Applicant: QUALCOMM INC

    Abstract: A method and system that enables multiplexing a plurality of data streams onto one data stream based on data stream priorities and available transport frame combinations (TFCs) is disclosed. A mobile station 12 has applications that produce separate data streams. Example applications include voice 32, signaling 34, E-mail 36 and web applications 38. The data streams are combined by a multiplexer module 48 into one data stream called the transport stream 50. The transport stream 50 is sent over the reverse link to base station transceivers (BTS) 14. The multiplexer module 48 multiplexes the data streams onto the transport stream according to their priorities and the available TFCs.

    Method and apparatus for gps assistance in a communication system.

    公开(公告)号:HK1041923A1

    公开(公告)日:2002-07-26

    申请号:HK02103502

    申请日:2002-05-08

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus for efficiently transmitting location assistance information to a mobile communication device over a control channel with a minimal impact on the capacity of the control channel. A position location server provides a difference between satellite locations which have been computed using Almanac data and then Ephemeris data. Sending only the difference between the locations and clock corrections computed using the two different data types, the total amount of information to be transmitted to a mobile communication device is significantly reduced. Furthermore, by providing rate of change information, the method and apparatus allows the location assistance information to remain valid for a relatively long time after it is has been received by the mobile communication device.

    Method and apparatus for allocating data streams onto a single channel

    公开(公告)号:AU2580802A

    公开(公告)日:2002-05-27

    申请号:AU2580802

    申请日:2001-11-14

    Applicant: QUALCOMM INC

    Abstract: A method and system that enables multiplexing a plurality of data streams onto one data stream based on data stream priorities and available transport frame combinations (TFCs) is disclosed. A mobile station 12 has applications that produce separate data streams. Example applications include voice 32, signaling 34, E-mail 36 and web applications 38. The data streams are combined by a multiplexer module 48 into one data stream called the transport stream 50. The transport stream 50 is sent over the reverse link to base station transceivers (BTS) 14. The multiplexer module 48 multiplexes the data streams onto the transport stream according to their priorities and the available TFCs.

    68.
    发明专利
    未知

    公开(公告)号:BR0008098A

    公开(公告)日:2001-11-27

    申请号:BR0008098

    申请日:2000-02-14

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus for efficiently transmitting location assistance information to a mobile communication device over a control channel with a minimal impact on the capacity of the control channel. A position location server provides a difference between satellite locations which have been computed using Almanac data and then Ephemeris data. Sending only the difference between the locations and clock corrections computed using the two different data types, the total amount of information to be transmitted to a mobile communication device is significantly reduced. Furthermore, by providing rate of change information, the method and apparatus allows the location assistance information to remain valid for a relatively long time after it is has been received by the mobile communication device.

    Method and apparatus for determining an algebraic solution to gps terrestrial hybrid location system equations

    公开(公告)号:AU5074501A

    公开(公告)日:2001-07-09

    申请号:AU5074501

    申请日:2000-12-07

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus for use in a hybrid position location system. The method and apparatus combines measurements from Global Positioning System (GPS) and terrestrial transceiver stations to compute the location of a device. An algebraic solution to hybrid position location system equations is output from the method and apparatus. The method and apparatus determines the position of a device using a non-iterative method, as against the use of a conventional iterative least mean square method. The method of the present invention can be used to solve the location system equations in scenarios where a non-iterative solution is desirable. In certain scenarios, the location system equations may have two possible solutions. An iterative method would converge on one of the solutions, without any indication of the existence of the other ambiguous solution. Moreover, the iterative method may converge on the incorrect of the two ambiguous solutions. Use of the presently disclosed method and apparatus yields both the ambiguous solutions. The disclosed method may be followed up with iterative methods, using the solutions from the algebraic method as initial estimates of the device location for the iterative method. A different process can then select the correct solution. Thus, the algebraic method can be used to detect the existence of ambiguous solutions, and to find both solutions.

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