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公开(公告)号:AR075844A2
公开(公告)日:2011-04-27
申请号:ARP100100814
申请日:2010-03-16
Applicant: INTERDIGITAL TECH CORP
Inventor: LEVY JOSEPH S , TERRY STEPHEN E , DICK STEPHEN G , DIFAZIO ROBERT A
Abstract: Un método para usar en una unidad inalámbrica de transmision/recepcion (WTRU) de acceso multiple por division de codigo de banda ancha (WCDMA)/duplex por division de frecuencia (FDD) para seleccionar una combinacion de formato de transporte (TFC) dedicada para su uso en la transmision de un canal de transporte compuesto codificado (CCTrCH) dedicado, método caracterizado porque comprende: probar una primera TFC para determinar si la primera TFC está en un estado de exceso de potencia en base a una potencia de transmision permitida predeterminada; seleccionar la primera TFC para un CCTrCH dedicado bajo una condicion de que la primera TFC no exceda una potencia de transmision permitida predeterminada, y determinar TFCs dedicadas disponibles del CCTrCH dedicado mediante la eliminacion de al menos una TFC dedicada en base a la primera TFC; y seleccionar una segunda TFC para el CCTrCH dedicado bajo una condicion de que la primera TFC no exceda una potencia de transmision permitida predeterminada, y determinar TFCs dedicadas disponibles del CCTrCH dedicado mediante la eliminacion de al menos una TFC dedicada en base a la segunda TFC. También se divulga una unidad inalámbrica de transmision/recepcion (WTRU) de acceso multiple por division de codigo de banda ancha (WCDMA)/duplex por division de frecuencia (FDD) que emplea al método.
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公开(公告)号:AU2007207853B2
公开(公告)日:2011-01-06
申请号:AU2007207853
申请日:2007-01-08
Applicant: INTERDIGITAL TECH CORP
Inventor: GRANDHI SUDHEER A , CHANDRA ARTY C , ZEIRA ELDAD M , LEVY JOSEPH S
Abstract: A method and apparatus are described for distributing beacon information. A first WTRU modifies a physical layer protocol data unit (PHY PDU) frame to include beacon information. The first WTRU transmits the modified PHY PDU frame to a second WTRU. The second WTRU receives the modified PHY PDU frame and extracts beacon information from the modified PHY PDU frame. The second WTRU associates with the first WTRU.
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公开(公告)号:RU2407186C2
公开(公告)日:2010-12-20
申请号:RU2008139298
申请日:2007-03-02
Applicant: INTERDIGITAL TECH CORP
Inventor: SAMMOUR MOHAMMED , RUDOLF MARIAN , GRANDHI SUDHEER A , LEVY JOSEPH S
Abstract: Изобретениеотноситсяк системампередачиданных. Техническийрезультатзаключаетсяв уменьшенииэнергопотреблениястанций (STA). Беспроводнаялокальнаясеть (WLAN) включаетв себяпоменьшеймереоднуточкудоступавысокойпропускнойспособности (АР) ипоменьшеймереоднустанциювысокойпропускнойспособности (STA). Станция STA ицелеваяточкадоступаАРобмениваютсяданными, связаннымис обеспечениемвысокойпропускнойспособности, истанция STA выполняетпередачубазовогонабораслужб (BSS) целевойточкедоступаАРнаоснованииэтихданных. Информация, связаннаяс обеспечениемвысокойпропускнойспособности, можетвходитьв сигнальныесообщениястандартов IEEE 802.11r, 802.11k и 802.11v. Станция STA можетпосылатькакотдельныеотчетыпоизмерениямдлярасширенногои нормальногодиапазоновточекдоступаАР, таки совместныйотчетдлярасширенногои длянормальногодиапазоновточекдоступаАР. Устройство, управляющеесетью, можетполучатьинформациюотносительнотекущегосостояния STA иАР, касающуюсявозможностей, характеристики параметровскоростнойпередачи; атакжевыборочновключатьи выключатьпоменьшеймерекакую-либоизвозможностей, характеристики параметровскоростнойпередачи STA иАР. 2 н. и 24 з.п. ф-лы, 2 ил., 1 табл.
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公开(公告)号:MY141320A
公开(公告)日:2010-04-16
申请号:MYPI20060262
申请日:2006-01-20
Applicant: INTERDIGITAL TECH CORP
Inventor: CHANDRA ARTY , LEVY JOSEPH S , GRANDHI SUDHEER A , ZEIRA ELDAD
Abstract: A PEER-TO-PEER COMMUNICATION SYSTEM (100) USING A DIRECT LINK SETUP (DLS) IS DISCLOSED. A MOBILE STATION (STA) ESTABLISHES A DIRECT COMMUNICATION LINK WITH ANOTHER STA BY SENDING A MESSAGE REQUESTING A DLS TO AN ACCESS POINT (AP), (I.E., A CENTRALIZED CONTROLLER). THE AP MAY ACCEPT OR REJECT THE DLS REQUEST BASED ON CHANNEL MEASUREMENTS. IF THE DLS REQUEST (104) IS ACCEPTED, THE DLS IS ESTABLISHED SUCH THAT THE STAS MAY DIRECTLY COMMUNICATE WITH EACH OTHER. AN ESTABLISHED DLS CONNECTION MAY BE TORN DOWN BY THE AP SENDING A MESSAGE INCLUDING A DLS TEARDOWN (120B) REQUEST TO ONE OF THE STAS, OR BASED ON CHANNEL MEASUREMENTS. THE SYSTEM MAY BE AN AD HOC NETWORK (200) COMPRISING A PLURALITY OF STAS WITHOUT AN AP WHERE EACH STA MAINTAINS A DATABASE OF ONE-HOP AND TWO-HOP STAS, AND ESTABLISHES A DIRECT LINK TO OTHER STAS AFTER INFORMING NEIGHBOURING STAS OF AN INTENTION TO ESTABLISHED A DIRECT COMMUNICATION LINK.
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公开(公告)号:NO20074335A
公开(公告)日:2007-10-25
申请号:NO20074335
申请日:2007-08-24
Applicant: INTERDIGITAL TECH CORP
Inventor: LEVY JOSEPH S , CHANDRA ARTY , ZEIRA ELDAD , GRANDHI SUDHEER A
Abstract: A peer-to-peer communication system using a direct link setup (DLS) is disclosed. A mobile station (STA) establishes a direct communication link with another STA by sending a message requesting a DLS to an access point (AP), (i.e., a centralized controller). The AP may accept or reject the DLS request based on channel measurements. If the DLS request is accepted, the DLS is established such that the STAs may directly communicate with each other. An established DLS connection may be torn down by the AP sending a message including a DLS teardown request to one of the STAs, or based on channel measurements. The system may be an Ad hoc network comprising a plurality of STAs without an AP where each STA maintains a database of one-hop and two-hop STAs, and establishes a direct link to other STAs after informing neighboring STAs of an intention to establish a direct communication link.
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公开(公告)号:NO20071295A
公开(公告)日:2007-05-02
申请号:NO20071295
申请日:2007-03-09
Applicant: INTERDIGITAL TECH CORP
Inventor: TERRY STEPHEN E , LEVY JOSEPH S , CHANDRA ARTY , SHAHEEN KAMEL M , ZEIRA ELDAD , GRANDHI SUDHEER A
CPC classification number: H04B7/2612 , H04B7/02 , H04B7/0413 , H04W48/10 , H04W72/005 , H04W72/0446 , H04W74/08 , H04W74/0816 , H04W84/12 , H04W88/08 , Y02D70/00 , Y02D70/1222 , Y02D70/142 , Y02D70/22 , Y02D70/23 , Y02D70/442 , Y02D70/449
Abstract: A method and system for controlling access to a medium in a wireless communication system. A superframe structure is defined in time domain to include a contention free period (CFP) which has at least one scheduled resource allocation (SRA), at least one management SRA (MSRA) and a contention period. An extended beacon (EB) including information about the SRA and MSRA is transmitted for. The MAC architecture reduces station battery consumption, supports higher throughput for non-real time (NRT) traffic and is more efficient for real time (RT) traffic while maintaining full compatibility.
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公开(公告)号:CA2622994A1
公开(公告)日:2007-03-22
申请号:CA2622994
申请日:2006-09-11
Applicant: INTERDIGITAL TECH CORP
Inventor: LEVY JOSEPH S , CHANDRA ARTY , ZEIRA ELDAD M , GRANDHI SUDHEER A , TERRY STEPHEN E
Abstract: A method and apparatus for protecting high throughput (HT) stations (STAs) are disclosed. In one embodiment, a physical layer (PHY) legacy preamble transmitted by one STA is decoded by another STA that does not use a legacy preamble. In another embodiment, one STA is identified by another STA by using bits in the preamble of a packet to indicate which PHY type will be used in the remaining portion of the packet. In yet another embodiment, one STA sends ready-to-send (RTS)/clear-to-send (CTS) or CTS-to-self messages for reserving a medium in the presence of another STA of a different type than the one STA. In yet another embodiment, an access point (AP) transmits a beacon or an association message including a capability information element (IE) that indicates operation or support for a legacy preamble, HT STA preambles and a medium access control (MAC) packet transmission with HT protection mechanisms.
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公开(公告)号:NO20050084L
公开(公告)日:2005-01-06
申请号:NO20050084
申请日:2005-01-06
Applicant: INTERDIGITAL TECH CORP
Inventor: DICK STEPHEN G , LEVY JOSEPH S , RUDOLF MARIAN
IPC: G01R29/00 , H04B1/7097 , H04B7/204 , H04B7/26 , H04B17/40 , H04J3/00 , H04Q7/20 , H04B7/216 , H04B1/69 , H04B7/005
Abstract: An interference signal code power (ISCP) measurement is estimated for a receiver. Signals transmitted in a particular time slot are received and a gain of the received signals is controlled using an automatic gain control (AGC) device. An ISCP value corresponding to the gain value from a table is determined.
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公开(公告)号:BR0213074A
公开(公告)日:2004-10-13
申请号:BR0213074
申请日:2002-10-18
Applicant: INTERDIGITAL TECH CORP
Inventor: TERRY STEPHEN E , DICK STEPHEN G , DIFAZIO ROBERT A , LEVY JOSEPH S
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公开(公告)号:CA2625076A1
公开(公告)日:2003-05-15
申请号:CA2625076
申请日:2002-10-18
Applicant: INTERDIGITAL TECH CORP
Inventor: TERRY STEPHEN E , DICK STEPHEN G , LEVY JOSEPH S , DIFAZIO ROBERT A
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