METHOD AND APPARATUS FOR PERFORMING IDLE MODE REACQUISITION AND HANDOFF IN AN ASYNCHRONOUS COMMUNICATION SYSTEM

    公开(公告)号:CA2415381A1

    公开(公告)日:2002-01-24

    申请号:CA2415381

    申请日:2001-07-11

    Applicant: QUALCOMM INC

    Abstract: Techniques to efficiently process paging channels in an asynchronous wireles s communication system (100). In one aspect, if the base stations (104a, b, c) are not synchronized with each other and a remote terminal's (106) designate d page time is different from base station to base station, the remote termina l (106) can wake up based on the earliest base station in a reacquisition sear ch list (712) that includes candidate base stations to which the remote termina l may be handed off. In another aspect, the criteria to select base stations f or evaluation as reacquisition targets may be based on the received power (512) of the base stations as well as their timing (514), both of which may be mad e relative to that of a preferred base station. In yet another aspect, the remote terminal may wake up multiple times in a particular paging cycle (i.e ., a frame cycle or a DRX cycle) if there are one or more candidates base stati on to which the remote terminal may be handed off.

    Method and apparatus for performing idle mode reacquisition and handoff in an asynchronous communication system

    公开(公告)号:AU7199301A

    公开(公告)日:2002-01-30

    申请号:AU7199301

    申请日:2001-07-11

    Applicant: QUALCOMM INC

    Abstract: Techniques to efficiently process paging channels in an asynchronous wireless communication system. In one aspect, if the base stations are not synchronized with each other and a remote terminal's designated page time is different from base station to base station, the remote terminal can wake up based on the earliest base station in a reacquisition search list that includes candidate base stations to which the remote terminal may be handed off. In another aspect, the criteria to select base stations for evaluation as reacquisition targets may be based on the received power of the base stations as well as their timing, both of which may be made relative to that of a preferred base station. In yet another aspect, the remote terminal may wake up multiple times in a particular paging cycle (i.e., a frame cycle or a DRX cycle) if there are one or more candidates base station to which the remote terminal may be handed off.

    Modified finger assignment algorithm for CDMA-systems

    公开(公告)号:AU2002316645B2

    公开(公告)日:2007-11-01

    申请号:AU2002316645

    申请日:2002-07-12

    Applicant: QUALCOMM INC

    Abstract: A method for assigning tracking elements includes sorting a list of potential assignments according to a diversity criterion. In one example, a list of received signal instances is sorted first according to a measure of energy and then sorted again according to the diversity criterion. In a further embodiment, a demodulation element may be labeled available for assignment yet continue to output demodulated symbols in a locked state. Applications to a mobile station of a CDMA system for cellular telephony are discussed.

    5.
    发明专利
    未知

    公开(公告)号:AT397836T

    公开(公告)日:2008-06-15

    申请号:AT01951058

    申请日:2001-07-11

    Applicant: QUALCOMM INC

    Abstract: Techniques to efficiently process paging channels in an asynchronous wireless communication system. In one aspect, if the base stations are not synchronized with each other and a remote terminal's designated page time is different from base station to base station, the remote terminal can wake up based on the earliest base station in a reacquisition search list that includes candidate base stations to which the remote terminal may be handed off. In another aspect, the criteria to select base stations for evaluation as reacquisition targets may be based on the received power of the base stations as well as their timing, both of which may be made relative to that of a preferred base station. In yet another aspect, the remote terminal may wake up multiple times in a particular paging cycle (i.e., a frame cycle or a DRX cycle) if there are one or more candidates base station to which the remote terminal may be handed off.

    6.
    发明专利
    未知

    公开(公告)号:BR0113802A

    公开(公告)日:2006-09-12

    申请号:BR0113802

    申请日:2001-09-12

    Applicant: QUALCOMM INC

    Inventor: LEVIN MARK

    Abstract: Captured data is stored in a storage element. The captured data represents a record of at least one observed phenomenon. For example, the captured data may represent a still image or a video sequence. In response to a determination that a predetermined condition exists, the captured data is retrieved from the storage element and transmitted over a wireless datalink.

    7.
    发明专利
    未知

    公开(公告)号:BR0211057A

    公开(公告)日:2004-10-26

    申请号:BR0211057

    申请日:2002-07-12

    Applicant: QUALCOMM INC

    Abstract: A method for assigning tracking elements includes sorting a list of potential assignments according to a diversity criterion. In one example, a list of received signal instances is sorted first according to a measure of energy and then sorted again according to the diversity criterion. In a further embodiment, a demodulation element may be labeled available for assignment yet continue to output demodulated symbols in a locked state. Applications to a mobile station of a CDMA system for cellular telephony are discussed.

    Method and apparatus for performing idle mode reacquisition and handoff in an asynchronous communication system.

    公开(公告)号:HK1057842A1

    公开(公告)日:2004-04-16

    申请号:HK04100594

    申请日:2004-01-29

    Applicant: QUALCOMM INC

    Abstract: Techniques to efficiently process paging channels in an asynchronous wireless communication system. In one aspect, if the base stations are not synchronized with each other and a remote terminal's designated page time is different from base station to base station, the remote terminal can wake up based on the earliest base station in a reacquisition search list that includes candidate base stations to which the remote terminal may be handed off. In another aspect, the criteria to select base stations for evaluation as reacquisition targets may be based on the received power of the base stations as well as their timing, both of which may be made relative to that of a preferred base station. In yet another aspect, the remote terminal may wake up multiple times in a particular paging cycle (i.e., a frame cycle or a DRX cycle) if there are one or more candidates base station to which the remote terminal may be handed off.

    MODIFIED FINGER ASSIGNMENT ALGORITHM FOR CDMA-SYSTEMS

    公开(公告)号:CA2453119A1

    公开(公告)日:2003-01-23

    申请号:CA2453119

    申请日:2002-07-12

    Applicant: QUALCOMM INC

    Abstract: A method for assigning tracking elements includes sorting a list of potentia l assignments according to a diversity criterion. In one example, a list of received signal instances is sorted first according to a measure of energy a nd then sorted again according to the diversity criterion. In a further embodiment, a demodulation element may be labeled available for assignment y et continue to output demodulated symbols in a locked state. Applications to a mobile station of a CDMA system for cellular telephony are discussed.

    Modified finger assignment algorithm for CDMA-systems

    公开(公告)号:AU2002316645C1

    公开(公告)日:2008-09-18

    申请号:AU2002316645

    申请日:2002-07-12

    Applicant: QUALCOMM INC

    Abstract: A method for assigning tracking elements includes sorting a list of potential assignments according to a diversity criterion. In one example, a list of received signal instances is sorted first according to a measure of energy and then sorted again according to the diversity criterion. In a further embodiment, a demodulation element may be labeled available for assignment yet continue to output demodulated symbols in a locked state. Applications to a mobile station of a CDMA system for cellular telephony are discussed.

Patent Agency Ranking