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    METHODS AND SYSTEMS FOR PROVIDING EFFICIENT OPERATION OF MULTIPLE MODES IN A WLAN SYSTEM
    3.
    发明专利
    METHODS AND SYSTEMS FOR PROVIDING EFFICIENT OPERATION OF MULTIPLE MODES IN A WLAN SYSTEM 未知

    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.

    Method and apparatus for adjusting a reselection timer and cell ranking criteria, and reporting degraded signal measurement of a serving cell
    4.
    发明专利
    Method and apparatus for adjusting a reselection timer and cell ranking criteria, and reporting degraded signal measurement of a serving cell 未知

    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.

    Methods and systems for providing efficient operation of multiple modes in a WLAN system
    7.
    发明专利
    Methods and systems for providing efficient operation of multiple modes in a WLAN system 未知

    公开(公告)号：AU2011253642A1

    公开(公告)日：2011-12-15

    申请号：AU2011253642

    申请日：2011-11-24

    Applicant: INTERDIGITAL TECH CORP

    Inventor： GRANDHI SUDHEER A ,  MOHAMMED SAMMOUR ,  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 5 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 10 unused protected TXOP is possible for both protected AP transmissions and STA transmissions.

    Asignación dinámica de recursos, programación y señalización para un servicio de velocidad variable de datos en evolución a largo plazo (LTE)
    9.
    发明专利
    Asignación dinámica de recursos, programación y señalización para un servicio de velocidad variable de datos en evolución a largo plazo (LTE) 未知

    公开(公告)号：ES2523815T3

    公开(公告)日：2014-12-01

    申请号：ES11174665

    申请日：2007-08-20

    Applicant: INTERDIGITAL TECH CORP

    Inventor： WANG JIN ,  MOHAMMED SAMMOUR ,  CHANDRA ARTY

    IPC: H04W72/04 ,  H04W72/12

    Abstract: Una unidad de transmisión/recepción inalámbrica, WTRU, que comprende: medios para recibir una primera asignación de recursos para datos de enlace ascendente, en donde la primera asignación de recursos es un primer tipo de asignación de recursos, en donde la primera asignación de recursos indica al menos un primer número de bloques de recursos asignados a la WTRU; y medios para transmitir datos de enlace ascendente de acuerdo con la primera asignación de recursos, caracterizado por: medios para recibir información de control que indica una segunda asignación de recursos para datos de enlace ascendente, en donde la segunda asignación de recursos es un segundo tipo de asignación de recursos, en donde la segunda asignación de recursos indica al menos un segundo número de bloques de recursos asignados a la WTRU; medios para transmitir datos de enlace ascendente de acuerdo con la segunda asignación de recursos para una duración de tiempo predeterminada; y medios para transmitir datos de enlace ascendente de acuerdo con la primera asignación de recursos después de la duración de tiempo predeterminada.

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