Qualcomm Incorporated

Jong Ro Park

Chun Woo Lee

Kuo-Chun Lee

Tom Chin

Doo Seok Kim

Kyoung Cheol Oh

Guangming Shi

Jong Hyeon Park

Yu Albert Wang

Wei Zhang

Je Woo Kim

Patrick Lim

Quanzhu Duan

Feng Guo

Fangqi Hu

Ta Yan Siu

Yu Wang

Wan Ho Kim

Guangming Carl Shi

Techniques for signaling a mobile communications device in a special operating state that data bursts contain messages relevant to the special operating state. The signaling may be implemented using one or more bits in a frame control header (FCH). As a result, the mobile communication device may be decode the FCH first and decode data bursts only if there is an indication the data bursts contain a relevant message. Power savings may be achieved at the mobile communications device by avoiding decoding data bursts with no relevant messages.

Methods and systems for power savings using a message indication header

Techniques presented herein disclose handover using increased probability of the fast ranging success. Propagation delay of the RF signal transmitted from an MS to a target BS may be estimated based on a known propagation delay to a current serving BS and a relative difference in propagation delays to the current serving BS and the target BS, for example, as indicated by different receive times of preamble sequences transmitted from the current serving BS and the target BS.

Methods and systems for handover using increased probability for fast ranging success

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.

Methods and systems for uplink scheduling using weighted QoS parameters

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.

Methods and systems for handover in WiMAX networks

A method for intra-user quality of service (QoS) uplink scheduling may include determining scheduling types associated with active uplink connections that are maintained by the subscriber station. The method may also include determining QoS parameters corresponding to the different scheduling types. The method may also include scheduling the active uplink connections for uplink transmissions based on the different scheduling types and their corresponding QoS parameters.

Methods and apparatus for intra-user quality of service uplink scheduling

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.

Methods and systems for supporting MIMO bursts for multicast and broadcast services

Certain embodiments of the present disclosure may allow for transmitting location information from a mobile station to a base station. The mobile station can determine differential location information (DLI) of the mobile station relative to an absolute location of the mobile station and transmit the DLI to the base station. The base station can receive DLI from the mobile station, the DLI indicating a location of the mobile station relative to an absolute location, and adjust parameters of the mobile station based, at least in part, on the DLI.

Methods and systems of reporting location information through fast-feedback channels in WiMAX system

Certain embodiments of the present disclosure propose techniques for improving automatic repeat request (ARQ) feedback messages to reduce unnecessary transmissions by notifying the transmitter of the last acknowledged block in the ARQ feedback message.

Methods and systems for ARQ feedback message improvement

Embodiments of the present disclosure allow a HARQ transmitter to provide a receiver an indication of the protocol data units (PDUs) that should not be expected because they are part of a data burst that has been retransmitted a maximum allowable number of times. The indication message may contain a maximum serial number contained in the data burst that has reached the maximum number of retransmissions, or the serial number of a first PDU in the next data burst.

Methods and systems using window start update for wireless communication HARQ connection

Methods and apparatus for setting the connection identifier (CID) mask length of a Hybrid Automatic Repeat-Request (HARQ)-MAP or a SUB-MAP pointer information element (IE) in a compressed downlink map (DL-MAP) of an orthogonal frequency-division multiple access (OFDMA) frame are provided in an effort to reduce the number of false indications in the CID mask, while also striving, as a secondary concern, to reduce the CID mask length. In this manner, an individual mobile station (MS) may not waste processing, battery power, or time interpreting a HARQ-MAP message or a sub downlink/uplink map (SUB-DL-UL-MAP) message that was not intended for this particular MS. For some embodiments where the CID mask length is set to be small, the control overhead (i.e., the size of the HARQ-MAP or the SUB-MAP pointer IE) may be decreased, and more of the OFDMA frame may be available for data traffic.

Methods and systems for setting CID mask length of a HARQ-MAP/SUB-MAP pointer IE in WiMAX systems

Certain embodiments of the present disclosure allow data for a second connection to be exchanged while the second connection is in a low power state that overlaps with a listening interval of a first connection.

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San Ramon, CA, United States of America

Jong Ro Park