-
公开(公告)号：CA2463731A1
公开(公告)日：2003-05-15
申请号：CA2463731
申请日：2002-10-18
Applicant: INTERDIGITAL TECH CORP
Inventor： LEVY JOSEPH S , DIFAZIO ROBERT A , DICK STEPHEN G , TERRY STEPHEN E
Abstract: The present invention discloses a method and system for enabling efficient reduction of TFCs in the TFCS to achieve desired transmission, while remaini ng within desired power and data requirements. Upon the UE transmission power requirement exceeding the maximum or allowable transmission power the MAC shall be informed for subsequent TFC selection of all TFCs that currently exceed .this limit. The UE will then chose the TFC with the next lower transmission power requirement and the sequence will continue until an acceptable TFC is determined. The present invention also enables the replacement of the TFCs in the TFCS and advanced determination of non- supported TFCs. The TFCs that require transmission power greater then the maximum or allowed UE transmission power shall be determined continuously in every TTI, not just in TTIs where the maximum power has been exceeded.
-
32.发明专利
公开(公告)号：DK2369894T3
公开(公告)日：2017-06-12
申请号：DK11160366
申请日：2007-01-03
Applicant: INTERDIGITAL TECH CORP
Inventor： GRANDHI SUDHEER A , SAMMOUR MOHAMMED , LEVY JOSEPH S
IPC: H04W88/10
-
公开(公告)号：NO338830B1
公开(公告)日：2016-10-24
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
-
公开(公告)号：AU2014253536A1
公开(公告)日：2014-11-13
申请号：AU2014253536
申请日：2014-10-24
Applicant: INTERDIGITAL TECH CORP
Inventor： CHANDRA ARTY , LEVY JOSEPH S , GRANDHI SUDHEER A , ZEIRA ELDAD
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 including 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. 1Q, 104 114-- 106 120 108- LO1= E 12a QSTAb ST
-
35.发明专利
公开(公告)号：AU2014206154A1
公开(公告)日：2014-08-07
申请号：AU2014206154
申请日：2014-07-23
Applicant: INTERDIGITAL TECH CORP
Inventor： GRANDHI SUDHEER A , SAMMOUR MOHAMMED , LEVY JOSEPH S
IPC: H04L12/28
Abstract: A method and system applies MAC transmission opportunity (TXOP) protection for multiple mode operation in a WLAN system. In particular, MAC mechanisms are defined to support multiple mode CTS frames, and multiple mode CF-End frames sent by the AP, each in a format appropriate for the corresponding mode which also applies to a single mode as a trivial case. MAC mechanisms permit truncation of TXOP duration for releasing the unused portion of the TXOP when no further data for transmission is available. Release of unused protected TXOP is possible for both protected AP transmissions. K=Z11/17 * Lai W *~ ( \ ( D C'A -S u0 10- 0- 1 SA iIs00 C Uj LU Co C-a Sils LiLU CD:: v)~~ LL U
-
Patent Agency Ranking36.发明专利
公开(公告)号：MY151401A
公开(公告)日：2014-05-30
申请号：MYPI20095586
申请日：2007-01-03
Applicant: INTERDIGITAL TECH CORP
Inventor： GRANDHI SUDHEER A , MOHAMMED SAMMOUR , LEVY JOSEPH S
IPC: H04W88/10
Abstract: A METHOD AND SYSTEM APPLIES MAC TRANSMISSION OPPORTUNITY (TXOP) PROTECTION FOR MULTIPLE MODE OPERATION IN A WLAN SYSTEM. IN PARTICULAR, MAC MECHANISMS ARE DEFINED TO SUPPORT MULTIPLE MODE CTS FRAMES, AND MULTIPLE MODE CF-END FRAMES SENT BY THE AP, EACH IN A FORMAT APPROPRIATE FOR THE CORRESPONDING MODE WHICH ALSO APPLIES TO A SINGLE MODE AS A TRIVIAL CASE. MAC MECHANISMS PERMIT TRUNCATION OF TXOP DURATION FOR RELEASING THE UNUSED PORTION OF THE TXOP WHEN NO FURTHER DATA FOR TRANSMISSION IS AVAILABLE. RELEASE OF UNUSED PROTECTED TXOP IS POSSIBLE FOR BOTH PROTECTED AP TRANSMISSIONS AND STA TRANSMISSIONS.
-
公开(公告)号：CA2650436C
公开(公告)日：2013-12-17
申请号：CA2650436
申请日：2007-04-24
Applicant: INTERDIGITAL TECH CORP
Inventor： LEVY JOSEPH S , GRANDHI SUDHEER A , RUDOLF MARIAN , ZUNIGA JUAN CARLOS
IPC: H04L12/24
Abstract: High throughput channel operation in a mesh wireless local area network (WLAN) is disclosed. A mesh network comprises a plurality of mesh points and a network management entity (NME). The NME is configured to retrieve capability and configuration data from the mesh points. The NME configures at least one mesh point with respect to IEEE 802.11n channelization and legacy protection mode based on the capability and configuration data.
-
38.发明专利
公开(公告)号：ES2397675T3
公开(公告)日：2013-03-08
申请号：ES11164085
申请日：2007-04-24
Applicant: INTERDIGITAL TECH CORP
Inventor： RUDOLF MARIAN , ZUNIGA JUAN CARLOS , LEVY JOSEPH S , GRANDHI SUDHEER A
Abstract: Un punto de acceso, AP, que comprende: un receptor inalámbrico configurado para recibir de forma inalámbrica datos de configuración y capacidaddesde una serie de unidades de transmisión recepción, WTRU, los datos de configuración y capacidadincluyendo información relacionada con la coexistencia de un canal de 20 MHz y un canal de 40 MHz;una unidad de memoria configurada para almacenar los datos de configuración y capacidad; y un transmisor inalámbrico configurado para transmitir de forma inalámbrica, por lo menos a uno de dicha seriede WTRU, datos de configuración específicos de WTRU que comprenden datos de canalización y datos deprotección de herencia en base a los datos de configuración y capacidad almacenados
-
公开(公告)号：AU2009202241B2
公开(公告)日：2012-04-26
申请号：AU2009202241
申请日：2009-06-05
Applicant: INTERDIGITAL TECH CORP
Inventor： ZEIRA ELDAD , SHAHEEN KAMEL M , GRANDHI SUDHEER A , TERRY STEPHEN E , CHANDRA ARTY , LEVY JOSEPH S
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 lease 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. C)C C/D I e CD Z C L' Co C-o co cv CDIc N~ ~ Clo uJ w 0k 0 I z3 Eu _ cc Cl) 2N I 9 LU CO C) ) LCl) a: R l co~ wJ C0 0U LU) L LU 00... 0
-
公开(公告)号：BRPI0617022A2
公开(公告)日：2011-07-12
申请号：BRPI0617022
申请日：2006-09-11
Applicant: INTERDIGITAL TECH CORP
Inventor： CHANDRA ARTY , ZEIRA ELDAD M , LEVY JOSEPH S , TERRY STEPHEN E , GRANDHI SUDHEER A
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.
-
-
-
-
-
-
-
-
-
Search Results
139
records
(took 0.026 seconds)
