公开(公告)号：NO20051152L

公开(公告)日：2005-03-03

申请号：NO20051152

申请日：2005-03-03

Applicant: INTERDIGITAL TECH CORP

Inventor： RUDOLF MARIAN ,  CAVE CHRISTOPHER

IPC: H04W4/02 ,  H04W16/28 ,  H04W36/08 ,  H04W48/14 ,  H04W48/20 ,  H04M1/00 ,  H04Q7/38

Abstract: Wireless mobile unit communication initiation is provided in a radio network that has a plurality of base stations, each providing wireless communication services in a respective geographic coverage. The wireless communication is established by first transmitting an omnidirectional sounding pulse from a wireless mobile unit. Information related to the detected sounding pulse is communicated to an interface by each base station detecting the sounding pulse. One of the base stations that detected the sounding pulse is selected for mobile unit communication based on the communicated information and directs a communication beam to the mobile unit to establish wireless communication. Alternatively, one or more of the base stations that detected the sounding pulse direct a communication beam to the mobile unit and the mobile unit selects unit the base station with which it is to establish wireless communication. Preferably, smart antennas, including directional beamforming capability, are employed by the base stations.

公开(公告)号：NO20045516A

公开(公告)日：2004-12-17

申请号：NO20045516

申请日：2004-12-17

Applicant: INTERDIGITAL TECH CORP

Inventor： CAVE CHRISTOPHER

IPC: H04L12/56 ,  H04W24/10 ,  H04W28/04 ,  H04W28/16 ,  H04W72/08 ,  H04W74/02 ,  H04B7/00 ,  H04B7/216

CPC classification number: H04W72/0413 ,  H04W24/10 ,  H04W28/16 ,  H04W72/085 ,  H04W74/02

公开(公告)号：AU2003276939A8

公开(公告)日：2004-04-19

申请号：AU2003276939

申请日：2003-09-26

Applicant: INTERDIGITAL TECH CORP

Inventor： RUDOLF MARIAN ,  CAVE CHRISTOPHER

IPC: H04L12/56 ,  H04W74/00 ,  H04W74/08 ,  H04Q7/20 ,  H04L12/28 ,  H04B7/216 ,  H04Q7/28 ,  H04L12/43

Abstract: A wireless communication system having a Node B and a plurality of wireless transmit/receive units (WTRUs), includes a contention-based uplink (UL) channel and at least one downlink (DL) physical channel. The UL channel supports UL transmissions from the WTRUs to the Node B. The UL channel is randomly accessed by a WTRU when the WTRU is ready to transmit data. The DL physical channel supports DL transmissions from the Node B to the WTRUs. The DL transmissions include an acquisition indicator and information regarding said acquisition indicator. The acquisition indicator confirms whether the data transmitted over said UL channel was successfully received by the Node B.

公开(公告)号：CA2499937A1

公开(公告)日：2004-04-08

申请号：CA2499937

申请日：2003-09-26

Applicant: INTERDIGITAL TECH CORP

Inventor： RUDOLF MARIAN ,  CAVE CHRISTOPHER

IPC: H04L12/56 ,  H04W74/00 ,  H04W74/08 ,  H04Q7/20 ,  H04B7/216 ,  H04L12/28 ,  H04Q7/28 ,  H04L12/43

Abstract: A wireless communication system having a Node B and a plurality of wireless transmit/receive units (WTRUs), includes a contention-based uplink (UL) channel and at least one downlink (DL) physical channel. The UL channel is randomly accessed by a WTRU when the WTRU is ready to transmit data. The DL physical channel supports DL transmissions from the Node B to the WTRUs. The DL transmissions include an acquisition indicator and information regarding said acquisition indicator. The acquisition indicator confirms whether the data transmitted over said UL channel was successfully received by the Node B.

公开(公告)号：CA2486707A1

公开(公告)日：2003-12-04

申请号：CA2486707

申请日：2003-05-15

Applicant: INTERDIGITAL TECH CORP

Inventor： CAVE CHRISTOPHER

IPC: H04L12/56 ,  H04W24/10 ,  H04W28/04 ,  H04W28/16 ,  H04W72/08 ,  H04W74/02 ,  H04B7/00 ,  H04B7/216

Abstract: A method for admission control of control ~plane~ channel signaling requests includes receiving a signaling request (12). Upon receipt of signaling connection request, a first determination is performed to determine to provi de admission (14), to common resources. When the first determination is negativ e, a second determination is performed to determine whether admission to dedicated resources (15). When the second determination is negative, the signaling request is rejected (21). When the second determination is positiv e, the request is admitted to dedicated resources (22). When the first determination is positive, a third determination is performed to determine whether the quality of signaling request is high or low (16). If the quality of the request is high, the signaling request is admitted to common resource s (20). When the quality is low, a fourth determination is performed (18) to determine whether to provide admission to dedicated resources (22). If the fourth determination is ~positive~negative, the request is admitted to commo n resources (20).

公开(公告)号：BRPI0714528A2

公开(公告)日：2013-07-02

申请号：BRPI0714528

申请日：2007-08-20

Applicant: INTERDIGITAL TECH CORP

Inventor： LU GUANG ,  ZHANG GUODONG ,  CHANDRA ARTY ,  CAVE CHRISTOPHER ,  MARINIER PAUL ,  GRANDHI SUDHEER A

IPC: H04W4/06 ,  H04W74/08

Abstract: The present invention is related to a method and system for sending and reducing uplink feedback signaling by a wireless transmit/receive unit (WTRU) related to transmission of multimedia broadcast multi cast service (MBMS) data over a high speed down link packet access (HSDPA) channel. A Node B may pre-allocate a time frequency region or a common channelization code for the feedback. A triggering criterion for reporting a channel quality indicator (CQI) is set and WTRUs send a CQI to a Node B only if the triggering criterion is satisfied. The triggering criterion may be a current operating CQI value at the Node B, or based on erroneous transport block reception statistics, or a predetermined time period. A feedback reduction method related to ACK/NACK includes the WTRU sending an indication of an average number of transmissions needed to successfully decode the data instead of sending an ACK/NACK for every transmission interval.

公开(公告)号：CA2579839C

公开(公告)日：2013-02-05

申请号：CA2579839

申请日：2005-09-08

Applicant: INTERDIGITAL TECH CORP

Inventor： LA SITA FRANK ,  TOUAG ATHMANE ,  CUFFARO ANGELO ,  CAVE CHRISTOPHER ,  ROY VINCENT ,  MARINIER PAUL

IPC: H04W36/08 ,  H04W28/18 ,  H04W36/06 ,  H04W84/12

Abstract: This invention relates to wireless local area networks, and particularly to the IEEE 802.11 family of standards. It consists of a method and apparatus that can be implemented in access points (APs) and subscriber wireless transmit/receive units (WTRUs), in order to allow an AP to initiate re-association of a WTRU to itself or a different AP. The invention improves the robustness of the network by enabling more efficient load balancing, congestion control, and roaming, without compromising the user experience.

公开(公告)号：AU2009243501B2

公开(公告)日：2013-01-31

申请号：AU2009243501

申请日：2009-12-03

Applicant: INTERDIGITAL TECH CORP

Inventor： CUFFARO ANGELO ,  LA SITA FRANK ,  CAVE CHRISTOPHER ,  ROY VINCENT ,  MARINIER PAUL

IPC: H04W28/18 ,  H04W36/06 ,  H04W84/12

Abstract: This invention relates to wireless local area networks, and particularly to the IEEE 802.11 family of standards, It consists of a method and apparatus that can be implemented in access points (APs) and subscriber wireless transmit/receive units (WTRUs), in order to allow an AP to initiate re-association of a WTRU to itself or a different AP. The invention improves the robustness of the network by enabling more efficient load balancing, congestion control, and roaming, without compromising the user experience. Original AP .WTRU Target AP AP determines that WTRIU should be redirected to Target AP If necessary, switches to channel currently used by WNTRU DRCm If necessary, switches back to Target AP operatfing channel WTRU reconfigures according to Target AP [at specified time DRf Figure 5

公开(公告)号：BRPI0612477A2

公开(公告)日：2010-11-23

申请号：BRPI0612477

申请日：2006-05-03

Applicant: INTERDIGITAL TECH CORP

Inventor： ROY VINCENT ,  MARINIER PAUL ,  CAVE CHRISTOPHER ,  CUFFARO ANGELO

IPC: H04W74/08 ,  H04W28/18

Abstract: Methods for sharing radio resource allocation information between access points (APs) in a wireless local area network include: sending resource allocation information from a first AP to at least one other AP; directly requesting resource allocation information from a first AP by a second AP; or requesting resource allocation information for a first AP by a second AP through a centralized entity. A similar method may also be used to allocate radio resources among APs.

公开(公告)号：AT459156T

公开(公告)日：2010-03-15

申请号：AT05704962

申请日：2005-01-04

Applicant: INTERDIGITAL TECH CORP

Inventor： ALI AHMED ,  CUFFARO ANGELO ,  CAVE CHRISTOPHER ,  MARINIER PAUL

IPC: H04L12/28 ,  H04B7/00 ,  H04L12/56 ,  H04W28/16 ,  H04W28/24

Abstract: In a method for controlling channel access in wireless communications, an admitted time value is calculated for each access category in a station. The admitted time value is a maximum amount of medium time the station can use in a time period. A used time value is calculated for each access category in the station. The used time value is an amount of medium time used by the station. A determination is made whether the used time value is less than the admitted time value. If the used time value is less than the admitted time value, a frame with enhanced distributed channel access (EDCA) parameters is transmitted. If the used time value is not less than the admitted time value, a frame without the EDCA parameters is transmitted.