公开(公告)号：AU2010200010B2

公开(公告)日：2012-07-26

申请号：AU2010200010

申请日：2010-01-04

Applicant: INTERDIGITAL TECH CORP

Inventor： KWAK JOSEPH ,  CUFFARO ANGELO ,  MARINIER PAUL ,  CAVE CHRISTOPHER ,  ALI AHMED ,  ROY VINCENT ,  TOUAG ATHMANE ,  LA SITA FRANK ,  RUDOLF MARIAN ,  HUNKELER TERESA ,  RAHMAN SHAMIM AKBAR

IPC: H04W28/08 ,  H04W28/14 ,  H04W48/08 ,  H04W48/12 ,  H04W48/18 ,  H04W48/20 ,  H04W72/00 ,  H04W74/08

Abstract: An improved method of network management, particularly in the context of standards IEEE802.11 and IEEE802.11k, through two new MAC measurements, with attendant advantages. The two new measurements include WTRU uplink traffic loading measurement, and an AP service loading measurement and is generally applicable at least to layers 1 and 2 as applied to at least 802.11k in the context of OFDM and CDMA 2000 systems, but is applicable to other scenarios as well. A method for determining and advertising congestion is also provided for a Wireless Local Area Network (WLAN) system. The present invention also introduces a method for managing congestion when congestion is detected. This aspect for the present invention applies primarily to wireless systems that use the Carrier Sense Multiple Access/ Collision advantageously implemented in selectively configured WTRUs of various forms. FROM AP(x) RECEIVE ADVERTISED LOAD (LI) FROM AP(X) S10 TO S12 Si 0 FROM AP(y) 1 RECEIVE ADVERTISED LOAD (L2) FROM AP(y) DETERMINE AREA S1l- , LOAD (L3) COMPARE L3 WITH L2,L1& N ACCEPT L3 ALL HIGH L3 > Li & L2 A WTRU ? 3 Y S15B y S16 S14 DELAY LOAD CONDUCT LOAD SHEDDING SHEDDING RETURN RETURN RETURN

公开(公告)号：DE602005019534D1

公开(公告)日：2010-04-08

申请号：DE602005019534

申请日：2005-01-04

Applicant: INTERDIGITAL TECH CORP

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

IPC: H04L12/00 ,  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.

公开(公告)号：AR065978A2

公开(公告)日：2009-07-15

申请号：ARP080101444

申请日：2008-04-08

Applicant: INTERDIGITAL TECH CORP

Inventor： KWAK JOSEPH A ,  CUFFARO ANGELO A ,  MARINER PETER WILLIAM ,  CAVE CHRISTOPHER R ,  ALI AHMED ,  ROY VINCENT ,  RAHMAN SHAMIM AKBAR ,  RUDOLPH MARIAN ,  TOUAG ATHMANE ,  HUNKELER THERESA J ,  LASITA FRANK

IPC: H04W28/08 ,  H04W28/14 ,  H04W48/08 ,  H04W48/12 ,  H04W48/18 ,  H04W48/20 ,  H04W72/00 ,  H04W74/08 ,  H04Q7/38

Abstract: Un punto de acceso (AP) configurado para proveer gerenciamiento de canal en una red inalámbrica para otros APs y unidad inalámbricas de transmision/recepcion (WTRUs) capaces de comunicaciones inalámbricas, con cada uno en canales inalámbricos, APque comprende: un receptor configurado para recibir datos de demanda de tráfico no servido de WTRUs ubicadas dentro de un rango de servicio inalámbrico de dicho AP; un procesador configurado para calcular un elemento de carga BSS para cada una deuna pluralidad de categorías de acceso; y un transmisor configurado para anunciar el elemento de carga BSS a WTRUs dentro de un rango de servicio del AP.

公开(公告)号：NO20074242L

公开(公告)日：2007-10-26

申请号：NO20074242

申请日：2007-08-20

Applicant: INTERDIGITAL TECH CORP

Inventor： CUFFARO ANGELO ,  ALI AHMED

IPC: H04J1/16 ,  H04L12/58 ,  H04W28/02 ,  H04W28/04 ,  H04W48/06

公开(公告)号：MX2007009325A

公开(公告)日：2007-09-21

申请号：MX2007009325

申请日：2006-01-19

Applicant: INTERDIGITAL TECH CORP

Inventor： ALI AHMED ,  CUFFARO ANGELO A

IPC: H04W28/04 ,  H04J1/16 ,  H04W28/08 ,  H04W28/18 ,  H04W48/06 ,  H04W74/08 ,  H04W76/06 ,  H04W84/12 ,  H04W88/08

Abstract: Se describe un metodo y aparato para aliviar la congestion de un medio inalambrico usado por un punto de acceso (AP) y una pluralidad de unidades de transmision/recepcion inalambricas (WTRU). Si se determina que existe congestion en el medio inalambrico, entonces se hace una determinacion para ver si existen cualesquier flujos de trafico de baja prioridad establecidos entre el AP y al menos una de las WTRU. Si no existen flujos de trafico de baja prioridad establecidos en el AP y al menos una de las WTRU, las seleccionadas de las WTRU asociadas son disociadas con el AP sobre la base de la cantidad de tiempo consumida por las WTRU intentando transmitir y retransmitir paquetes no reconocidos o sobre una categoria de acceso de flujo de trafico especifica. Si se han establecido fluido de trafico de baja prioridad, el retraso de transmision de paquete asociado con los flujos de trafico de baja prioridad se incrementa cuando existe congestion. De otro modo, disminuye el retraso de transmision del paquete.

公开(公告)号：NO20071847L

公开(公告)日：2007-06-13

申请号：NO20071847

申请日：2007-04-11

Applicant: INTERDIGITAL TECH CORP

Inventor： KWAK JOSEPH A ,  CAVE CHRISTOPHER ,  MARINIER PAUL ,  CUFFARO ANGELO ,  ALI AHMED

IPC: H04W28/08 ,  H04W28/14 ,  H04W48/08 ,  H04W48/12 ,  H04W48/18 ,  H04W48/20 ,  H04W72/00 ,  H04W74/08

Abstract: A method, access point (AP) and a wireless transmit/receive unit (WTRU) in wireless communications are disclosed. Means are provided for a first communication station providing a load element for each of a plurality of access categories, and advertising the plurality of load elements to other communication stations.

公开(公告)号：CA2596330A1

公开(公告)日：2006-08-10

申请号：CA2596330

申请日：2006-01-19

Applicant: INTERDIGITAL TECH CORP

Inventor： CUFARO ANGELO A ,  ALI AHMED

IPC: H04J1/16 ,  H04W28/04 ,  H04W28/08 ,  H04W28/18 ,  H04W48/06 ,  H04W74/08 ,  H04W76/06 ,  H04W84/12 ,  H04W88/08

Abstract: A method and apparatus for alleviating congestion of a wireless medium used by an access point (AP) and a plurality of wireless transmit/receive units (WTRUs) is disclosed. If congestion is determined to exist on the wireless medium, a determination is then made as to whether there are any low priority traffic streams established between the AP and at least one of the WTRUs. If there are no low priority traffic streams established between the AP and at least one of the WTRUs, selected ones of the associated WTRUs are disassociated with the AP based on the amount of time spent by the WTRUs trying to transmit and retransmit unacknowledged packets or on a specific traffic stream access category. If low priority traffic streams have been established, the packet transmission delay associated with the low priority traffic streams is increased when congestion exists. Otherwise, the packet transmission delay is decreased.

公开(公告)号：NO20063590L

公开(公告)日：2006-08-08

申请号：NO20063590

申请日：2006-08-08

Applicant: INTERDIGITAL TECH CORP

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

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.

公开(公告)号：CA2552398A1

公开(公告)日：2005-08-04

申请号：CA2552398

申请日：2005-01-04

Applicant: INTERDIGITAL TECH CORP

Inventor： ALI AHMED

IPC: H04L12/56 ,  H04B7/26 ,  H04L12/28 ,  H04L29/02

Abstract: A method for scheduling packets in a wireless local area network begins by mapping a packet to an access category (AC) based on a user priority of the packet. The packet is assigned to a traffic flow (TF) in a station based on the AC of the packet. A packet from the TF is placed into a transmission que ue for the AC. A packet from the transmission queue is selected based on a quality of service-based contention resolution function, and the selected packet is transmitted.

公开(公告)号：ES2391280T3

公开(公告)日：2012-11-23

申请号：ES05797701

申请日：2005-09-13

Applicant: INTERDIGITAL TECH CORP

Inventor： KWAK JOSEPH ,  CUFFARO ANGELO ,  MARINIER PAUL ,  CAVE CHRISTOPHER ,  ALI AHMED ,  ROY VINCENT ,  TOUAG ATHMANE ,  LA SITA FRANK ,  RUDOLF MARIAN ,  HUNKELER TERESA ,  RAHMAN SHAMIM ABKAR

IPC: H04W48/18 ,  H04W28/08 ,  H04W28/14 ,  H04W48/08 ,  H04W48/12 ,  H04W48/20 ,  H04W72/00 ,  H04W74/08

Abstract: Método para un punto de acceso, AP, que comprende:generar un elemento de carga de un conjunto o set básico de servicios, BSS, que comprende una pluralidadde elementos de carga de servicio de categoría de acceso, AC, uno para cada una de una AC de voz, una ACde vídeo, una AC de mejor esfuerzo, y una AC de fondo, indicando cada uno de la pluralidad de elementos decarga de servicio de AC una AC respectiva y uno de:una representación a escala de un retardo promedio de acceso para la AC indicada;que un servicio para la AC indicada no está disponible actualmente; oque un retardo promedio de acceso para la AC indicada no está disponible; ytransmitir el elemento de carga del BSS a una pluralidad de unidades de transmisión/recepción inalámbrica,WTRUs.