SYSTEM INFORMATION MODIFICATION NOTIFICATION AND DETECTION IN WIRELESS COMMUNICATIONS

    公开(公告)号:CA2710325C

    公开(公告)日:2014-05-27

    申请号:CA2710325

    申请日:2009-01-09

    Applicant: QUALCOMM INC

    Abstract: Systems and methodologies are described that facilitate notifying and detecting system information block (SIB) modification in subsequent modification periods. Access points can advertise information in a current SIB indicating a subsequent modification period in which the SIB will be modified. Devices can receive the SIB and process the information to determine whether the SIB will be modified and in which modification period. This mitigates undesirable affects of utilizing paging to indicate SIB modification since devices read the SIB upon entering a cell, switching from active to idle mode, etc.

    BASE STATION SYNCHRONIZATION FOR HANDOVER IN A HYBRID GSM/CDMA NETWORK

    公开(公告)号:CA2396770C

    公开(公告)日:2012-10-23

    申请号:CA2396770

    申请日:2001-01-08

    Applicant: QUALCOMM INC

    Abstract: A mobile wireless telecommunications system includes base stations (30) of a first type operating according to a first air interface, and base stations (36) of a second type operating according to a second air interface. Methods and apparatus are provided for handing over a mobile station (40) in the system from a first base station (30), which is of the first type, to a second base station (36), which is of the second type. A communications link is established over the first air interface between the mobile station (40) and the first base station (30). Data is received from the mobile station (40) responsive to a signal received by the mobile station (40) over the second air interface from the second base station (36), substantially without breaking the communications link with the first base station. The mobile station (40) is handed over from the first (30) to the second base station (36) responsive to the data received therefrom.

    CELL RESELECTION IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:HK1159397A1

    公开(公告)日:2012-07-27

    申请号:HK11113311

    申请日:2011-12-08

    Applicant: QUALCOMM INC

    Abstract: A method of performing cell reselection in a wireless communication system, comprising: camping on a first cell; identifying second and third cells deemed to be better than the first cell; moving from the first cell to the second cell without performing cell reselection to camp on the second cell; and performing cell reselection from the first cell to the second or third cell based on the updated rankings of the second and third cells as well as a corresponding apparatus.

    METHOD AND APPARATUS TO COUNT BROADCAST CONTENT RECIPIENTS IN A WIRELESS TELEPHONE NETWORK

    公开(公告)号:CA2516223C

    公开(公告)日:2012-07-03

    申请号:CA2516223

    申请日:2004-02-18

    Applicant: QUALCOMM INC

    Abstract: A base station (110) in a wireless communications network (100) counts mobile stations (114) receiving broadcast content via multi-user channel. The base station broadcasts (608) a repeating message identifying at least one broadcast content stream and, for each stream, a REGISTER (R) or DO NOT REGISTER (DNR) indicator. Mobile stations periodically re-examine (722) contents of this message. When the indicator is R for a broadcast content stream, mobile stations whose users have elected to receive it send (714) the base station a registration message for that stream. When the number of registered mobile stations reaches (612) a prescribed number, the base station changes (614) the indicator to DNR. When the indicator is DNR for a broadcast content stream, mobile stations refrain (712/716) from sending any registration message for that broadcast content stream. The base station may institute a recount (618) by resetting the indicator to R.

    49.
    发明专利
    未知

    公开(公告)号:BRPI0712983A2

    公开(公告)日:2012-04-10

    申请号:BRPI0712983

    申请日:2007-06-27

    Applicant: QUALCOMM INC

    Abstract: Techniques for performing handover in order to maintain call continuity for a user equipment (UE) are described. The UE may communicate with a first cell in a radio access network (RAN) for a packet-switched (PS) call, e.g., for Voice-over-Internet Protocol (VoIP) via High-Speed Packet Access (HSPA) in W-CDMA. The UE may send measurement reports to the RAN and may receive trigger from the RAN. The UE may establish a circuit-switched (CS) call with the first cell while the PS call is pending at the first cell. The PS call and the CS call may be for a voice call, and the UE may switch data path for the voice call from the PS call to the CS call and then terminate the PS call. The UE may then perform handover of the CS call from the first cell to a second cell, which may not support VoIP.

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