Abstract: Methods and apparatus for reducing power consumption of a mobile station (MS) during layer 3 (L3) peer-to-peer (P2P) communications employing a request/response message pair are provided. To save power, the MS may enter a power saving mode after transmitting a request message and initiating a timeout timer for the message pair, wherein the power saving mode may have an interval available for receiving the response message and an unavailable interval. The timeout timer may be suspended during the unavailable interval and resumed during the available interval such that the timeout timer is effectively lengthened.

Abstract: Certain embodiments of the present disclosure provide a unified scheme for selecting an operator and a radio access technology (RAT) by a multi-mode wireless device during a power-up or a handover process. By utilizing the proposed scheme, the mobile station may switch between RATs that are associated with the Worldwide Interoperability for Microwave Access (WiMAX), 3rd Generation Partnership Project (3GPP) or 3GPP2 standards.

Abstract: 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.

Abstract: 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.

Abstract: Methods and apparatus for using a location of a mobile station (MS) and information about neighbor base stations (BSs) to assist network entry and initialization, scanning, and/or handover operations are provided. The location of the MS may be ascertained by determining the Global Positioning System (GPS) coordinates of the MS internally or by receiving the location from, e.g., a GPS device external to the MS. The information about neighbor BSs may be retrieved from a BS information database based on the location of the MS. The BS information database may reside within the MS, be broadcast periodically to the MS in an effort to update the MS's internal database, or be stored in the network operator's database. Knowledge of the MS's location and information about neighbor BSs may reduce the time spent during network entry, scanning, or handover, and thereby, power consumption; and may increase the bandwidth usage efficiency.

Abstract: Methods and apparatus for expressing two or more extended information elements (IEs) of a MAP message using a single Extended or Extended-2 Downlink Interval Usage Code (DIUC) or Uplink Interval Usage Code (UIUC) in an orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) frame are provided. This enhancement, called extensible Extended IE mapping, allows the WiMAX network to include more IEs into the DL-MAP and UL-MAP messages as the IEEE 802.16 family of standards evolves. Without this enhancement, all of the new IEs may most likely have to be included in the data bursts, and a user terminal (e.g., a mobile station) cannot decode these data-burst IEs unless the user terminal receives the Downlink Channel Descriptor (DCD) message(s).

Abstract: Certain embodiments of the present disclosure allow a mobile station (MS) to proactively request neighbor base station information from a serving base station, for example, if a mobile neighbor advertisement (MOB_NBR-ADV) message is not received (or expected) in a predetermined time period.

Abstract: Certain embodiments of the present disclosure allow a mobile station to activate a sleep mode in order to reduce power consumption when the residual battery capacity is low. Certain embodiments of the present disclosure also provide techniques for adaptive power saving applied during an idle mode operation.

Abstract: Certain embodiments of the present disclosure provide techniques for selecting a new cell, from a plurality of cells in a boundary area between first and second coverage areas, for a wireless device. The first and second coverage areas may include, for example, include cells controlled by first and second operators or cells in different time zones. In either case, the techniques may facilitate giving preference to cells in a same coverage area as a current cell. The wireless device may then select a cell from the list of neighbor cells as the new cell.

Abstract: A method and apparatus for selectively utilizing short-range radio access technologies (RATs) when available to connect a multi-mode wireless device to a network are provided.

Abstract: Certain embodiments provide a method for managing updates to type-length-value (TLV) parameters used in a mobile station. The method generally includes generating a TLV bitmap having a plurality of bits to indicate whether or not updates exist to a corresponding plurality of TLV parameters, generating one or more client module registration bitmaps to indicate a subset of the TLV parameters utilized by a corresponding one or more client modules running on the mobile station, updating the TLV bitmap to indicate one or more TLV parameters modified by one or more MAC management messages, identifying one or more client modules that utilize the one or more TLV parameters modified by the one or more MAC management messages, as indicated by the client module registration bitmaps, and notifying the identified client modules of the modified TLV parameters.

Abstract: 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.

Abstract: Methods and systems for utilizing a multicast/broadcast connection identifier (CID) scheduling message in an orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) frame in an effort to bypass at least a portion of the Media Access Control (MAC) protocol data unit (PDU) parsing of the frame are provided. By bypassing at least a portion of the MAC PDU parsing of the OFDM/OFDMA frame (which may be in accordance with one or more standards of the IEEE 802.16 family of standards), a particular user terminal need not spend a lot of overhead in the CID filtering process, determining which MAC PDUs are intended to be processed by the MAC of that particular user terminal. Furthermore, for certain embodiments, a user terminal may power down related circuitry during the terminal's bypassing time period(s) of the OFDM/OFDMA frame in an effort to save power.

Abstract: Methods and apparatus for easily and quickly returning to a first radio access technology (RAT) network when handover to a second RAT network is cancelled are provided. The methods and apparatus may involve a mobile station (MS) entering idle mode before handover to the second RAT network is completed and requesting a serving base station (BS) to retain MS service and operational information, as well as service flow state information. In this manner, should handover to the second RAT network be cancelled before completion, a re-entry to the first RAT network may be expeditiously performed using the retained MS information.

Abstract: The present invention provides a calling method by a mobile unit. The mobile unit pre-stores a default dialing number, and has a database storing a plurality of primary dialing numbers. Each of the primary dialing numbers corresponds to one geographic location. When a user dials a calling number, the present invention tests if the calling number is identical to the default dialing number. If the calling number is identical to the default dialing number, the present invention retrieving one primary dialing number from the database based upon a current location of the mobile unit. Then, the present invention makes a telephone connection based on the one primary dialing number.

Abstract: The present invention provides a mobile station apparatus. The mobile station apparatus comprises an RF transmitting/receiving module, a display module, a memory comprising an RSSI database, and a control program. When the mobile station apparatus moves along a path comprising plural candidates of communication locations, the control program records a plurality of RSSIs, which are received by the RF transmitting/receiving module from the candidates along the communication locations, and at least one path parameter in the RSSI database, and then according to a predetermined display algorithm, the control program controls the display module to display at least one recorded RSSI and the corresponding path parameter as a reference, based on which the mobile station apparatus selects a communication location candidate for providing the mobile communication service.

Abstract: The present invention relates to a method for determining a nearest base station with respect to a mobile station from M base stations. First, the mobile station compares strengths of M signals received from M base stations with each other to determine a first base station, which has a strongest signal among M signals. Then, P strength differences of the strongest signal with P signals selected from the other (M-1) signals respectively are obtained. Finally, the first base station is determined as being the nearest base station when all strength differences are respectively larger than a predetermined value.

Abstract: The invention relates to a mobile station apparatus in a communication system. The communication system comprises a plurality of base stations for providing mobile communication service within a covered communication area. The mobile station apparatus comprises a memory for recording a predetermined access control class and determining which base station the mobile station apparatus is allowed to camp on for conducting mobile communication service, a battery for providing electrical power, a control program, and a power detector for detecting the current power of the battery, so that when the power detector detects that the power is lower than a predetermined low power watermark, the power detector issues a trigger signal. When the control program receives the trigger signal, the control program overwrites the predetermined access control class, so as to allow the mobile station apparatus to conduct mobile communication service through other base stations in the communication area.

Abstract: An alerting method for recharging a battery of a mobile device. The method includes collecting measured data with the mobile device, comparing the measured data with a statistic model of recharging patterns of the mobile device, determining if it is currently a suitable time for charging the battery of the mobile device according to a predetermined relation in the statistic model, and alerting a user of the mobile device to recharge the battery if it is currently a suitable time for charging the battery of the mobile device.

Abstract: A method for changing outputting settings for a mobile unit. The mobile unit has a user profile of a user, and the user profile contains a first data and a second data corresponding to first settings and second settings. The method includes monitoring the user's physical status to gather a third data, comparing the third data to the first data and the second data for selecting the outputting settings from the first settings and the second settings, and adjusting at least one output device of the mobile unit by the outputting settings.