中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

248 records (took 0.027 seconds)

    212.
    发明专利
    未知

    公开(公告)号：BRPI0415372A

    公开(公告)日：2006-12-12

    申请号：BRPI0415372

    申请日：2004-10-13

    Applicant: QUALCOMM INC

    Inventor： JAIN AVINASH ,  OSES DAVID PUIG ,  WEI YONGBIN

    IPC: H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04W28/22 ,  H04W36/08 ,  H04W36/18 ,  H04Q7/38

    Abstract: Systems and methods for controlling a data rate of a transmission in a wireless communication system during handoff are described herein. In some embodiments, controlling the data rate includes receiving transmissions from a plurality of base stations, wherein each received transmission includes a data rate control indicator, and adjusting the data rate of the transmission during handoff based on the data rate control indicators from the plurality of base stations.

    METHOD AND APPARATUS FOR IMPROVING DATA TRANSMISSION RELIABILITY IN A WIRELESS COMMUNICATIONS SYSTEM
    214.
    发明专利
    METHOD AND APPARATUS FOR IMPROVING DATA TRANSMISSION RELIABILITY IN A WIRELESS COMMUNICATIONS SYSTEM 未知

    公开(公告)号：CA2601637A1

    公开(公告)日：2006-09-28

    申请号：CA2601637

    申请日：2006-03-21

    Applicant: QUALCOMM INC

    Inventor： LUNDBY STEIN A ,  JAIN AVINASH

    IPC: H04L1/18

    Abstract: Techniques for performing duplicate detection and re-ordering for a HARQ transmission are described. For duplicate detection, a receiver determines whether a decoded packet x for an ARQ channel y is a duplicate packet based on packet x and a prior decoded packet for ARQ channel y. For re-ordering, the receiver determines whether an earlier packet is still pending on any other ARQ channel based on prior decoded packets for the ARQ channels and forwards packet x only if there are no pending earlier packets. There are no pending earlier packets on another ARQ channel z if (1) a decoded packet was received on ARQ channel z at a designated time or later or (2) a decoded packet was not received on ARQ channel z within a time window from current time.

    Base station synchronization for handover in a hybrid GSM/CDMA network
    218.
    发明专利
    Base station synchronization for handover in a hybrid GSM/CDMA network 未知

    公开(公告)号：NZ535358A

    公开(公告)日：2005-07-29

    申请号：NZ53535801

    申请日：2001-01-08

    Applicant: QUALCOMM INC

    Inventor： GRILLI FRANCESCO ,  JAIN AVINASH

    IPC: H04J3/00 ,  H04W36/14 ,  H04W56/00 ,  H04Q7/38 ,  H04Q7/00

    Abstract: In a mobile wireless communications system, which includes a base station of a first type operating according to a first air interface, and base stations of a second type operating according to a second air interface, a method for handing over a mobile station in the system from a first base station, which is of a first type, to a second base station, which is of the second type, wherein one of the first and second air interfaces comprises a TDMA interface, and the other of the interfaces comprises a CDMA interface, this comprises: (a) Establishing a communication link over the first air interface between the mobile station and the first base station; (b) Receiving data from the mobile station responsive to a signal received by the mobile station over the second air interface from the second base station, substantially without breaking the communication link with the first base station. Wherein receiving the data comprises applying a weighting factor to the measurement of signal strength; and (c) Handing over the mobile station from the first to the second base station, which is of a second type, wherein one of the first and second air interfaces comprises a TDMA interface and the other of the interfaces a CDMA interface. (62) Divided out of 519677

    APPARATUS, SYSTEM, AND METHOD FOR MANAGING REVERSE LINK COMMUNICATION
    220.
    发明专利
    APPARATUS, SYSTEM, AND METHOD FOR MANAGING REVERSE LINK COMMUNICATION 未知

    公开(公告)号：CA2537441A1

    公开(公告)日：2005-03-24

    申请号：CA2537441

    申请日：2004-09-08

    Applicant: QUALCOMM INC

    Inventor： WEI YONGBIN ,  CHEN TAO ,  SARKAR SANDIP ,  LUNDBY STEIN A ,  JAIN AVINASH ,  ODENWALDER JOSEPH P

    IPC: H04B7/005 ,  H04B7/185 ,  H04W52/14 ,  H04W52/24 ,  H04W52/26 ,  H04W52/28 ,  H04W52/36

    Abstract: In accordance with an exemplary embodiment of the invention, an apparatus, system, and method efficiently manage reverse link resources by allowing a mobile station to select between transmitting a payload a standard power lev el and transmitting a smaller payload at a boosted power level. The mobile station, therefore, can autonomously select a QoS (Quality of Service) level for physical layer packets. Based on reverse link transmission information received from a base station, the mobile station derives a reverse link transmission guideline defining the power levels and associated payloads for at least a standard service and boosted service. The mobile station selects a reverse link transmission power level from a plurality of power levels including at least a standard reverse link transmission power level associat ed with a standard payload size and a boosted reverse link transmission power level associated with a boosted payload size where the standard payload size is greater than the boosted payload size.

Patent Agency Ranking