CODE CHANNEL MANAGEMENT IN A WIRELESS COMMUNICATIONS SYSTEM

    公开(公告)号:CA2529928A1

    公开(公告)日:2005-01-06

    申请号:CA2529928

    申请日:2004-06-15

    Applicant: QUALCOMM INC

    Abstract: Systems and techniques are disclosed relating to communications. The systems and techniques involve dividing a plurality of subscriber stations into a plurality of groups, assigning a different plurality of orthogonal codes to each of the groups, the number of the orthogonal codes assigned to one of th e groups being less than the number of subscriber stations in said one of the groups, encoding communications to one of the subscriber stations in said on e of the groups at a data rate, and determining whether to spread at least a portion of communications to said to one of the subscriber stations with one of the orthogonal codes assigned to said one of the groups as a function of the data rate.

    6.
    发明专利
    未知

    公开(公告)号:FI20095857A

    公开(公告)日:2009-08-20

    申请号:FI20095857

    申请日:2009-08-20

    Applicant: QUALCOMM INC

    Abstract: A method and system for transmitting digital data by extending the sequence numbering range for a selective repeat transmission protocol are described. In accordance with one embodiment of the invention, data frames (70) are transmitted including an eight-bit sequence number (72) and a one-bit retransmit flag (74). The one-bit retransmit flag (74) indicates whether the frame is newly transmitted or retransmitted due to a failed first transmission. Transmit (50) and receive (52) systems each maintain a twelve-bit sequence number referred to as a "long sequence number" comprised of the eight-bit sequence number transmitted with each frame and a four-bit extension. The long sequence number is transmitted within a control frame (82) and the eight-bit sequence number is transmitted within the data frame (72).

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