公开(公告)号：AU2011203129A1

公开(公告)日：2011-07-21

申请号：AU2011203129

申请日：2011-06-28

Applicant: INTERDIGITAL TECH CORP

Inventor： SHANKAR SOMASUNDARAM ,  MOHAMMED SAMMOUR

IPC: H04W36/00

Abstract: Various methods for adjusting a reselection timer and cell ranking criteria are disclosed. The ranking criteria of a serving or neighbour cell, or a reselection timer in a wireless transmit/receive unit (WTRU), is adjusted based on how a serving cell signal 5 measurement, (eg signal strength, signal quality), compares to a plurality of thresholds over a time interval. In another method, cell ranking criteria is adjusted based on a hysteresis value and a scaling factor when a maximum number of reselections is exceeded and a high mobility factor is detected. Furthermore, a method of reporting cell signal measurements is disclosed, whereby a time-to-trigger time (TTT) interval is stated when 10 the neighbour cell signal measurement rises above a reporting range threshold. If the serving cell signal measurement falls below a serving cell threshold, the TTT interval is adjusted and thereby a measurement report is transmitted during the TTT interval.

公开(公告)号：BRPI0716323B1

公开(公告)日：2020-01-14

申请号：BRPI0716323

申请日：2007-10-25

Applicant: INTERDIGITAL TECH CORP

Inventor： ARTY CHANDRA ,  JIN WANG ,  MOHAMMED SAMMOUR ,  SHANKAR SOMASUNDARAM

IPC: H04W52/02 ,  H04W72/04 ,  H04W76/04 ,  H04W76/28

Abstract: método e dispositivo para a melhoria da recepção descontínua em um sistema sem fio um método de recepção descontínua (drx) em uma unidade de transmissão e de recepção sem fio (wtru). o método inclui a wtru que recebe a informação sobre o ajuste drx por sobre um sinal de controle de recurso do rádio (rrc), e a wtru que recebe a informação de ativação drx por sobre um sinal do meio de controle de acesso (mac) .

公开(公告)号：MY152794A

公开(公告)日：2014-11-28

申请号：MYPI20100198

申请日：2008-07-16

Applicant: INTERDIGITAL TECH CORP

Inventor： MUKHERJEE RAJAT P ,  WANG PETER S ,  MOHAMMED SAMMOUR ,  SHANKAR SOMASUNDARAM

IPC: H04W12/10

Abstract: A WIRELESS TRANSMIT RECEIVE UNIT (WTRU) (710) IS CONFIGURED TO RECEIVE UNCIPHERED AND CIPHERED MESSAGES. THE UNCIPHERED MESSAGES INCLUDE IDENTITY REQUESTS, AUTHENTICATION REQUESTS, NON-ACCESS STRATUM (NAS) SECURITY MODE COMMANDS AND TRACKING AREA UPDATE RESPONSES. THE CIPHERED MESSAGES MAY COME FROM THE NAS AND A RADIO RESOURCE CONTROLLER (RRC) (620). THE MESSAGES ARE CIPHERED USING SECURITY KEYS. THE MOST ILLUSTRATIVE DRAWING IS

公开(公告)号：MY151416A

公开(公告)日：2014-05-30

申请号：MYPI20093787

申请日：2008-03-12

Applicant: INTERDIGITAL TECH CORP

Inventor： JIN WANG ,  MOHAMMED SAMMOUR ,  WANG PETER S ,  SHANKAR SOMASUNDARAM ,  TERRY STEPHEN E

IPC: H04L47/21

Abstract: A METHOD AND APPARATUS FOR UPLINK (UL) STARVATION AVOIDANCE INCLUDES DETERMINING A CURRENT BUFFER STATUS INFORMATION. THE CURRENT BUFFER STATUS INFORMATION IS REPORTED TO AN EVOLVED NODE B (ENB). A GRANT THAT INCLUDES A DETERMINATION OF A NUMBER OF TOKENS A WIRELESS TRANSMIT/RECEIVE UNIT (WTRU) (210) MAY ACCUMULATE IS RECEIVED FROM THE ENB. THE MOST ILLUSTRATIVE DRAWING IS

公开(公告)号：BRPI0812675B1

公开(公告)日：2020-04-14

申请号：BRPI0812675

申请日：2008-07-16

Applicant: INTERDIGITAL TECH CORP

Inventor： MOHAMMED SAMMOUR ,  PETER S WANG ,  RAJAT P MUKHERJEE ,  SHANKAR SOMASUNDARAM

IPC: H04L29/06 ,  H04W12/10 ,  H04W80/02

Abstract: método e dispositivo para implementar segurança em um dispositivo sem fio de evolução de longo termo. uma unidade de transmissão e de recepção sem fio (wtru) é configurada para receber mensagens codificadas e não codificadas. as mensagens não codificadas incluem uma requisição de identidade, uma requisição de autenticação e um modo de comando de estrato de não acesso à rede (nas), e respostas de atualização de acompanhamento na área. as mensagens codificadas podem vir de um nas e um controle de recurso do rádio (rrc). as mensagens sã codificadas por meio do uso de chaves de segurança.

公开(公告)号：MY150637A

公开(公告)日：2014-02-14

申请号：MYPI20093680

申请日：2008-03-07

Applicant: INTERDIGITAL TECH CORP

Inventor： WANG PETER S ,  MUKHERJEE RAJAT P ,  SHANKAR SOMASUNDARAM ,  MILLER JAMES M ,  ULISES OLVERA-HERNANDEZ ,  WANG JING

IPC: H04W68/00

Abstract: A METHOD FOR ASSIGNING A TRACKING AREA (TA) IS DISCLOSED. A MOBILITY STATE OF A WIRELESS TRANSMIT/RECEIVE UNIT (WTRU) IS DETERMINED AND THE TA IS ASSIGNED BASED ON THE DETERMINED MOBILITY STATE. ALSO DISCLOSED IS A METHOD FOR ACCESSING A CLOSED SUBSCRIBER GROUP (CSG) TA. A CSG TA IDENTIFIER IS RECEIVED AT A WTRU (600) AND IS STORED. A CSG TA BROADCAST IS RECEIVED AND THE BROADCAST CSG TA IS ACCESSED IF AN IDENTIFIER OF THE BROADCAST CSG TA MATCHES THE STORED CSG TA IDENTIFIER. ALSO DISCLOSED IS A METHOD FOR CHANGING A MOBILITY STATE OF A WTRU (600). A CURRENT MOBILITY STATE OF THE WTRU (600) IS DETERMINED AND A PREDETERMINED METRIC OF THE WTRU (600) IS EXAMINED. THE PREDETERMINED METRIC IS EVALUATED TO DETERMINE IF THE METRIC HAS CROSSED A THRESHOLD AND THE MOBILITY STATE IS CHANGED BASED ON THE EVALUATED METRIC.

公开(公告)号：MY147557A

公开(公告)日：2012-12-31

申请号：MYPI20094580

申请日：2008-04-29

Applicant: INTERDIGITAL TECH CORP

Inventor： MUKHERJEE RAJAT P ,  SHANKAR SOMASUNDARAM ,  ULISES OLVERA-HERNANDEZ ,  SHAH YOGENDRA C ,  CHITRAPU PRABHAKAR R ,  INHYOK CHA

IPC: H04W12/00 ,  H04W48/00 ,  H04W48/12 ,  H04W84/14 ,  H04W88/08

Abstract: A wireless communication device is configured as an in-home node-B (H(e)NB). The H(e)NB is configured to perform a locking function to control modification of carrier and user controlled parameters, and also configured to detect a change in location.

公开(公告)号：BRPI0811699B1

公开(公告)日：2020-09-15

申请号：BRPI0811699

申请日：2008-06-18

Applicant: INTERDIGITAL TECH CORP

Inventor： DIANA PANI ,  JIN WANG ,  MOHAMMED SAMMOUR ,  RAJAT P MUKHERJEE ,  SHANKAR SOMASUNDARAM

IPC: H04W36/00 ,  H04W36/08 ,  H04W36/14 ,  H04W36/30

Abstract: mecanismo de nova seleção de células de inter-tecnologias de acesso via rádio. um método de realização de nova seleção celular determina em primeiro lugar um valor de qualidade de seleção celular atual. o valor de qualidade de seleção celular é comparado com um limite previamente determinado. as medições de células vizinhas são realizadas se o valor de qualidade de seleção celular for menor ou igual ao limite previamente determinado. as medições podem ser realizadas em células intrafrequências, células interfrequências e células de inter-tecnologias de acesso via rádio. caso seja encontrada uma célula vizinha que seja melhor que a célula atual com base nas medições, a célula vizinha melhor é novamente selecionada.

公开(公告)号：MY151828A

公开(公告)日：2014-07-14

申请号：MYPI20094491

申请日：2008-04-21

Applicant: INTERDIGITAL TECH CORP

Inventor： MUKHERJEE RAJAT P ,  MOHAMMED SAMMOUR ,  SHANKAR SOMASUNDARAM ,  MILLER JAMES M ,  JIN WANG

IPC: H04M1/00 ,  H04W4/08 ,  H04W4/90 ,  H04W8/18 ,  H04W12/06 ,  H04W12/08 ,  H04W48/08

Abstract: A METHOD AND A WIRELESS TRANSMIT/RECEIVE UNIT (WTRU) (600), INCLUDING A UNIVERSAL SUBSCRIBER IDENTITY MODULE (USIM), FOR IDENTIFYING A CLOSED SUBSCRIBER GROUP (CSG) CELL ARE DISCLOSED. THE WTRU (600) RECEIVES A BROADCAST FROM A CELL INCLUDING A CELL IDENTIFIER (ID). IF THE CELL ID IS ASSOCIATED WITH A CSG CELL, THE WTRU (600) DETERMINES WHETHER THE CSG ID IS PROGRAMMED IN THE USIM. THE CELL BROADCAST MAY INCLUDE A SINGLE BIT INFORMATION ELEMENT (IE) INDICATING THAT THE CELL IS A CSG CELL. IF THE CELL ID IS A CSG ID, THE CELL ID MAY FURTHER INCLUDE A PLURALITY OF FIELDS WHICH INDICATE AT LEAST ONE OF A COUNTRY, A REGION, AN OPERATOR, AND A HOME EVOLVED NODE-B (HeNB) NUMBER. THE CELL BROADCAST MAY FURTHER INCLUDE A BIT INDICATING WHETHER THE CSG CELL IS PUBLIC OR PRIVATE. THE CELL BROADCAST MAY FURTHER INCLUDE A BIT INDICATING THAT EMERGENCY CALLS ARE ALLOWED FROM ALL USERS.

公开(公告)号：AU2008226975C1

公开(公告)日：2011-10-06

申请号：AU2008226975

申请日：2008-03-05

Applicant: INTERDIGITAL TECH CORP

Inventor： SHANKAR SOMASUNDARAM ,  MOHAMMED SAMMOUR

IPC: H04W36/00

Abstract: Various methods for adjusting a reselection timer and cell ranking criteria are disclosed. The ranking criteria of a serving or neighbor cell, or a reselection timer in a wireless transmit/receive unit (WTRU), is adjusted based on how a serving cell signal measurement, (e.g., signal strength, signal quality), compares to a plurality of thresholds over a time interval. In another method, cell ranking criteria is adjusted based on a hysteresis value and a scaling factor when a maximum number of reselections is exceeded and a high mobility factor is detected. Furthermore, a method of reporting cell signal measurements is disclosed, whereby a time-to-trigger time (TTT) interval is started when the neighbor cell signal measurement rises above a reporting range threshold. If the serving cell signal measurement falls below a serving cell threshold, the TTT interval is adjusted and thereby a measurement report is transmitted during the TTT interval.