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136 条记录 (耗时 0.019 秒)

    METHODS AND APPARATUS FOR MOBILITY INFLUENCED HANDOFF
    42.
    发明公开
    METHODS AND APPARATUS FOR MOBILITY INFLUENCED HANDOFF 审中-公开
    方法和设备移动性的影响HANDOVER

    公开(公告)号：EP2137843A1

    公开(公告)日：2009-12-30

    申请号：EP08732215.2

    申请日：2008-03-14

    申请人： Wi-LAN Inc.

    发明人： ROBBINS, Barry R. ,  SUTTON, Todd R.

    IPC分类号： H04B7/26

    CPC分类号： H04W36/32 ,  H04W16/14 ,  H04W36/0094 ,  H04W88/06

    摘要： In a wireless communication system, a mobility factor is used to influence handoff. If a subscriber station has been in a low mobility state for some period of time, the system may handoff operation from a first service type to a second service type. If the mobility factor indicates that the subscriber station is moving, the system may handoff operation from the second service type back to the first service type.

    TRANSCEIVER WITH RECEIVE AND TRANSMIT PATH PERFORMANCE DIVERSITY
    43.
    发明公开
    TRANSCEIVER WITH RECEIVE AND TRANSMIT PATH PERFORMANCE DIVERSITY 有权
    与接收能力和性能的发射分集发射/接收器

    公开(公告)号：EP2127434A1

    公开(公告)日：2009-12-02

    申请号：EP08713767.5

    申请日：2008-01-15

    申请人： WI-LAN Inc.

    发明人： LUM, Allan ,  SUTTON, Todd

    IPC分类号： H04Q7/36 ,  H04B7/02

    CPC分类号： H04B7/0845 ,  H04K3/228 ,  H04K2203/32

    摘要： Methods and apparatus for implementing a wireless communication transceiver having receive path performance diversity. The transceiver implements a plurality of signal paths that can be configured as space diversity receive paths. Each of the plurality of signal paths includes a distinct RF filter. Each RF filter can be configured to provide a distinct frequency response, and in particular, a distinct jammer rejection profile. One of the RF filters can be configured to provide substantially no in-band jammer rejection. Each additional distinct RF filter can be configured to reject at least one distinct in-band jammer frequency or band of frequencies. A diversity receiver coherently combines the path performance diverse signals from each filter output. A transmitter can time division duplex transmit communications over at least a subset of the signal paths and their associated RF filters.

    METHOD AND APPARATUS FOR IMPLEMENTING A MAC COPROCESSOR IN A COMMUNICATIONS SYSTEM
    45.
    发明授权
    METHOD AND APPARATUS FOR IMPLEMENTING A MAC COPROCESSOR IN A COMMUNICATIONS SYSTEM 有权
    方法和装置用于实现MAC协处理器的通信系统

    公开(公告)号：EP1374458B1

    公开(公告)日：2007-11-21

    申请号：EP02707949.0

    申请日：2002-03-04

    申请人： WI-LAN Inc.

    发明人： BOURLAS, Yair ,  COHEN, Lewis, N. ,  REEVES, Michael, G. ,  STANWOOD, Kenneth, L.

    IPC分类号： H04L12/56

    CPC分类号： H04W88/08 ,  H04L47/14 ,  H04L47/24 ,  H04W28/20

    摘要： Disclosed is a novel method and system for efficiently synchronizing, transmitting, and receiving data between a base station and a plurality of customer premises. A MAC coprocessor (MCP) (402) is implemented, which works in conjunction with the MAC (410) in order to produce a robust, high throughput communication system. The MAC coprocessor (402) performs many of the tasks typically performed by prior art MAC's, including: during a downlink, storing a data frame, sorting the data frame according to modulation type or other criteria, determining when the data frame is full, and appending a set of CPE settings to the data frame. During an uplink, the MAC coprocessor (402) receives all data and routes the data either to the MAC (410) or a network backhaul. A MAC coprocessor (402) may be used in both the base station and Customer Premises. In both the downlink and uplink processes, having a MAC coprocessor working in conjunction with the MAC may significantly increase the communication system's throughput.

    Asymmetric adaptive modulation in a wireless communication system
    46.
    发明公开
    Asymmetric adaptive modulation in a wireless communication system 有权
    在无线通信系统的非对称的自适应调制

    公开(公告)号：EP1801989A2

    公开(公告)日：2007-06-27

    申请号：EP07075257.1

    申请日：2002-08-19

    申请人： Wi-LAN, Inc.

    发明人： Arviv, Eli ,  Spinar, Brian ,  Stanwood, Kenneth ,  Gazelle, David ,  Zimmerman, Ofer ,  Efraim, Penny

    IPC分类号： H04B1/38 ,  H04L1/00

    CPC分类号： H04L1/20 ,  H04L2001/0093

    摘要： On embodiment of the system and method provides asymmetric adaptive modulation which allows uplink and downlink subframes (304, 302, respectively) of data to be transmitted between a base station (102) and a CPE (104) with different modulation schemes, thus increasing the efficiency of downlink transmissions while maintaining the stability of uplink transmissions. In systems with multiple CPEs, each CPE (104) and base station (102) pair can independently select their uplink and downlink modulation techniques. The system and method are also adaptive in that they adjust the modulation schemes based on, for example, signal to noise ratio measurements or bit error rate measurements.

    Asymmetric adaptive modulation in a wireless communication system
    48.
    发明授权
    Asymmetric adaptive modulation in a wireless communication system 有权
    无线通信系统中的非对称自适应调制

    公开(公告)号：EP1801989B1

    公开(公告)日：2017-11-22

    申请号：EP07075257.1

    申请日：2002-08-19

    申请人： WI-LAN, Inc.

    发明人： Arviv, Eli ,  Spinar, Brian ,  Stanwood, Kenneth ,  Gazelle, David ,  Zimmerman, Ofer ,  Efraim, Penny

    IPC分类号： H04L1/20 ,  H04L1/00

    CPC分类号： H04L1/20 ,  H04L2001/0093

    摘要： On embodiment of the system and method provides asymmetric adaptive modulation which allows uplink and downlink subframes (304, 302, respectively) of data to be transmitted between a base station (102) and a CPE (104) with different modulation schemes, thus increasing the efficiency of downlink transmissions while maintaining the stability of uplink transmissions. In systems with multiple CPEs, each CPE (104) and base station (102) pair can independently select their uplink and downlink modulation techniques. The system and method are also adaptive in that they adjust the modulation schemes based on, for example, signal to noise ratio measurements or bit error rate measurements.