Qualcomm Incorporated

Patrick Lim

Tom Chin

Steven D Cheng

Fangqi Hu

Kuo-Chun Lee

Guangming Shi

Yu Albert Wang

Chun Woo Lee

Jong Ro Park

Wei Zhang

Shan Qing

Feng Guo

Doo Seok Kim

Ta Yan Siu

Yu Wang

Guangming Carl Shi

Techniques presented herein allow a wireless device, (e.g., a mobile station, MS) to automatically enter a low power state when detecting silence based on monitored VoIP transmissions. Automatically entering the low power state may help the wireless device conserve power. In addition, for certain types of scheduling services in which bandwidth is allocated to the wireless device from within a system (e.g., Unsolicited Grant Service or extended real time polling service), automatically entering the low power state when silence is detected may also free up bandwidth (i.e., that would have otherwise been allocated to the wireless device entering the low power state) for allocation to other wireless devices in the system.

Methods and systems for using a power savings mode during voice over internet protocol communication

A base station (BS) may determine a fixed modulation scheme, a fixed PDU payload size, and a fixed number of PDUs per downlink burst for transmission of multicast data to subscriber stations. The BS may allocate downlink bursts to deliver the multicast data to the subscriber stations via PDUs using the fixed modulation scheme, the fixed PDU payload size, and the fixed number of PDUs per DL burst. A subscriber station (SS) may bypass the processing of multicast frames if the SS does not belong to any multicast groups. An SS may search for multicast connection identifiers (CIDs) in DL MAP IEs in multicast frames if the SS belongs to at least one multicast group. The SS may bypass the parsing of a PDU's MAC header within a corresponding downlink burst in the multicast frame in response to identifying a multicast CID in a DL-MAP IE in a multicast frame.

Methods and apparatus for providing fast and power efficient multicast scheme

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

Methods and apparatus for waking a mobile station (MS) from a power saving mode to receive a media access control (MAC) management message (e.g., DCD/UCD, MOB_NBR-ADV, and SII-ADV) the MS has not yet received. The MS may wake from the power saving mode after detecting a mismatch between a set of media access control (MAC) management message parameters last received by the MS and the information found in an enhanced broadcast control pointer information element (BCP-IE) transmitted in a downlink map (DL-MAP). In this manner, the MS may be prevented from waking up unnecessarily, thereby providing high power efficiency.

Methods and systems for broadcasting alert and synchronization

This application provides techniques for a mobile station (MS) to determine whether a base station (BS) successfully receives a response to a BS request for the MS to enter an idle mode.

Methods and systems for recovering from an incomplete idle mode entry

Certain embodiments of the present disclosure propose a technique that may be utilized to accelerate the processing of MAC management messages by an MS, allowing the MS to return to a lower power state sooner, thereby conserving power. An indication of whether or not data bursts in a downlink (DL) sub-frame contain MAC management messages may allow the MS to avoid needlessly processing of data bursts and return to a low power state sooner.

Methods and systems for WiMAX broadcasting messages processing

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.

Methods and systems for transmission scheduling during sleep mode in WIMAX networks

Methods and apparatus for indicating a base station's amount of ranging traffic to a mobile station (MS) and for selecting a base station (BS) for performing ranging based on the ranging traffic indication are provided. This notification may occur via a ranging loading parameter, such as a ranging loading factor (RLF) indicating the ratio of used ranging slots to available ranging slots, transmitted as a new TLV (Type-Length-Value) within the Uplink Channel Descriptor (UCD) of a (potential) serving BS or in the UCD of a Neighbor Advertisement (MOB_NBR-ADV) message for a neighbor BS. By selecting a BS with a certain level of unused ranging slots, the MS may exponentially decrease the ranging overhead (i.e., the average waiting time for the ranging procedures) when compared to a conventional MS that does not consider a BS's ranging overload when trying to perform ranging with the BS.

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San Diego, CA, United States of America

Patrick Lim