Patent application number | Description | Published |
20090310477 | METHODS AND SYSTEMS FOR STICKY REGION ALLOCATION IN OFDMA COMMUNICATION SYSTEMS - Methods and apparatus for allocating a data region (termed “sticky region allocation”) in an orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) frame so that a user terminal can receive/send data bursts for multiple OFDM/OFDMA frames, rather than inserting a MAP information element (MAP IE) for each user terminal in every frame, are provided. In this manner, the size of the control overhead, such as the downlink (DL) and uplink (UL) MAP messages, may be reduced. The reduced control overhead may increase the frame resources available for data traffic and thus, may boost the overall efficiency and performance of wireless systems using OFDM/OFDMA. | 12-17-2009 |
20090310543 | METHODS AND SYSTEMS FOR DYNAMIC STICKY REGION ALLOCATION IN MAP-BASED COMMUNICATION SYSTEMS - Methods and apparatus for allocating, modifying, and terminating a fixed data region (termed “sticky region allocation”) in an orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) frame are provided. With sticky region allocation, the sticky region may be negotiated during the establishment of a connection between a base station and a user terminal, and a single MAP information element (MAP IE) may inform the user terminal of the location of the sticky region. Then, a user terminal can receive/send data bursts for a certain connection in multiple OFDM/OFDMA frames without needing a MAP IE for locating each burst in subsequent frames. Accordingly, the size of the control overhead, such as the downlink (DL) and uplink (UL) MAP messages, may be reduced. The reduced control overhead may increase the frame resources available for data traffic and thus, may boost the overall efficiency and performance of OFDM/OFDMA wireless systems. | 12-17-2009 |
20100020765 | METHODS AND SYSTEMS FOR CONCURRENT DATA AND SIGNALING METHODOLOGY FOR WIMAX HANDOVER - Techniques, systems and methods for concurrent data and signaling for WiMAX handover are disclosed herein. The serving base station may receive a handover request message from a mobile station and transmit a parameter to the mobile station to indicate a time to suspend a first set of one or more service flows between the serving base station and the mobile station during a handover procedure and continue data exchange between the mobile station and the serving base station for a second set of one or more service flows during the handover procedure. The proposed techniques reduce the service suspension time during the handover procedure. | 01-28-2010 |
20100118756 | METHODS AND SYSTEMS FOR SUPPORTING MIMO BURSTS FOR MULTICAST AND BROADCAST SERVICES - Certain embodiments of the present disclosure provide a method for supporting multicast and broadcast services (MBS) with multiple-input multiple-output (MIMO) capabilities. This can be achieved by adding specific MIMO information into existing MBS-MAP messages while providing backward compatibility. | 05-13-2010 |
20100118797 | METHODS AND SYSTEMS USING FAST DL / UL SYNCHRONIZATION FOR MOBILE SYSTEMS - Certain embodiments provide techniques and apparatus that may allow for improvements in performance and power consumption in sleep and idle mode through fast DL and UL synchronization for wireless communications systems, such as Mobile WiMAX Systems. | 05-13-2010 |
20100151862 | METHODS AND SYSTEMS FOR HANDOVER IN WIMAX NETWORKS - This application provides techniques for robust handover to a target base station, based on performing initial ranging with the target base station. The techniques might generally include scanning neighboring base stations (BSs), selecting a target BS for a handover at least based on results of the scanning, performing initial ranging with the target BS, and sending a Handover Request to the target BS. | 06-17-2010 |
20100177709 | METHODS AND SYSTEMS FOR UPLINK SCHEDULING USING WEIGHTED QOS PARAMETERS - Certain embodiments of the present disclosure proposes a flexible method for scheduling of an uplink transmission simultaneously considering all active connections of a mobile station. A decision on scheduling priority can be made based on a metric that comprises QoS parameters and current traffic measurements. The weight factors may be applied for every QoS parameter per schedule type providing flexibility of the scheduling algorithm. The proposed scheduling algorithm may be applied to satisfy different QoS requirements for each service provider and application by changing weight factors if required. | 07-15-2010 |
20100240420 | METHODS AND APPARATUS FOR CHANGING PAGING PARAMETERS IN A COMMUNICATION SYSTEM - A base station and a subscriber station may negotiate paging parameters so that the subscriber station can enter idle mode. After the subscriber station has entered idle mode, the base station may change at least one paging parameter at the base station. The base station may direct the subscriber station to change at least one paging parameter at the subscriber station after the subscriber station has entered idle mode. The subscriber station may change at least one paging parameter at the subscriber station after the subscriber station has entered idle mode. | 09-23-2010 |