Patent application number | Description | Published |
20100054137 | AUTOMATIC REPEAT REQUEST (ARQ) PROTOCOL FOR A MULTIHOP COOPERATIVE RELAY COMMUNICATION NETWORK - A method is provided for confirming whether a data unit transmitted from a base station (BS) was successfully relayed to a subscriber station via one of a plurality of relay stations in a multihop cooperative relay network. Selected ones of the relay stations are designated as: a front-linked relay station designed to only transmit a negative acknowledgement message to the BS upon receiving a data unit from the BS that is unable to be decoded and not to transmit an acknowledgement message upon receiving a data unit from the BS that is able to be decoded, and a back-linked relay station designed to only transmit a acknowledgement message to the BS upon receiving the data unit from the BS that is able to be decoded and not to transmit a negative acknowledgement message to the BS upon receiving a data unit from the BS that is unable to be decoded. | 03-04-2010 |
20100074109 | NETWORK AND MOBILE DEVICE INITIATED QUALITY OF SERVICE - Systems and methodologies are described that facilitate avoidance of duplicative resource allocation and/or erroneous service charges via unambiguously indicating an entity responsible for quality of service (QoS) initiation. In one example, an indication is provided to a mobile device to indicate a preference for network-initiated QoS or a preference for device-initiated QoS. QoS for a data flow can be established in accordance with the indication. For instance, the mobile device initiates QoS when the indication specifies a preference for device-initiated QoS while a network establishes QoS when the indication specifies a preference for network-initiated QoS. | 03-25-2010 |
20100075680 | METHOD AND APPARATUS FOR REDUCING SUCCESSIVE PRE-REGISTRATION ATTEMPTS BY ACCESS TERMINALS - An access terminal pre-registers with a second access network via a first access network to ensure a quick handover in the future. Frequent pre-registration attempts are avoided by implementing a hysteresis timer that restricts when a pre-registration process can be initiated. The hysteresis timer is started when pre-registration is initiated by the access terminal. No new pre-registration attempts are permitted if the hysteresis timer has not expired. An abort condition can cause the hysteresis timer to be aborted early, and a new pre-registration can be initiated. Access points in the first access network may be grouped into one or more pre-registration zones. If the access terminal moves from a first access point to a second access point, a new pre-registration is skipped if the first and second access points have the same pre-registration zone or the second access point is aware of the pre-registration zone for the first access point. | 03-25-2010 |
20100099412 | METHODS AND APPARATUS FOR SYSTEM SELECTION IN A MULTIMODE WIRELESS DEVICE - Devices and methods are provided for system selection from a plurality of wireless system access technologies, such as a first group (e.g., 3GPP2 technologies) and a second group (e.g., 3GPP technologies). In one embodiment, the method may involve storing identification information pertaining to the first group in a database, wherein the database may concern the priority of ones of the access technologies pertaining to the second group. The method may also involve selecting a preferred access technology from one of the first and second groups based at least in part on the identification information stored in the database. | 04-22-2010 |
20100111043 | 1XRTT AND HRPD NEIGHBOR LIST SUPPORT OVER LTE - Devices and methods are provided for supporting single carrier Radio Transmission Technology (1×RTT) and High Rate Packet Data (HRPD) neighbor lists over LTE, thereby enabling efficient scans for 3GPP2 neighbors with minimal interruption to the LTE operations both when idle or when in-traffic. In one embodiment, the method may involve accessing a neighbor list, each neighboring system in the list being prioritized based at least in part on whether the access terminal (AT) supports a hybrid mode. For example, the method may involve selecting the 3GPP2 system to handin to based at least in part on the neighbor list. | 05-06-2010 |
20100135206 | Radio Access Technology Interworking - Radio access interworking technologies allow a target network to notify a source network that a mobile device has moved from source network to target network, wherein mobile device does not need to perform notification to source network. Further, source network can provide a first subset of overhead information to mobile device and, after moving to target network, mobile device can receive a second subset of overhead information from target network. Further, mobile device can perform prehashing prior to moving to target network based on a channel list received from source network. | 06-03-2010 |
20110003590 | Provisioning Single-Mode and Multimode System Selection Parameters and Service Management - Multi-mode system selection (MMSS) enables a mobile station (MS) to prioritize MS preference for selecting particular radio air-interfaces (AI) across multiple standards (e.g., 3GPP, 3GPP2, WiMAX). 3GPP2 is developing a scheme MMSS-3GPP2 which is usually referred to as simply ‘MMSS.’ Other schemes exist e.g., proprietary ones (e.g., internal ePRL), an MMSS-3GPP based on the PLMN with Access Technologies of non-3GPP systems. MMSS OTASP messages and parameters are being defined in 3GPP2 to allow the carriers to provision MMSS parameters to the mobile device. With MMSS, the mobile can select and hence acquire cdma2000 and non-cdma2000 systems (e.g., LTE, WiMAX) based on carrier's preferences. | 01-06-2011 |
20110014913 | ENHANCEMENTS FOR MULTI-MODE SYSTEM SELECTION (MMSS) AND MMSS SYSTEM PRIORITY LISTS (MSPLS) - A mobile device or access terminal of a wireless wide area network (WWAN) communication system is provisioned for Multi-Mode System Selection (MMSS) wherein an MMSS System Priority List (MSPL) is used with respect to the underlying system selection priority list (e.g., Private Land Mobile Network (PLMN) list). Relating a current location to one or more entries in an MMSS Location Associated Priority List (MLPLs) enables scaling a range of entries in the PLMN list, indicating whether the MSPL apply to the entire list of PLMNs stored in an access terminal or to some subset of the PLMN List. Similarly, the present innovation addresses whether the MSPL applies to the entire Preferred Roaming List (PRL) or some subset of a geo-spatial location (GEO) area. | 01-20-2011 |
20110092208 | METHOD AND APPARATUS FOR UNIFYING DIFFERENT MULTI-MODE SYSTEM SELECTION FRAMEWORKS - A unified approach multi-mode system selection is provided for a mobile device implementing multiple multi-mode system selection (MMSS). Different system operators may provide their own MMSS databases and rules in different frameworks. To allow a mobile device to perform MMSS without modifying its software, the different databases may be mapped into a common database. In one example, an MMSS solution is implemented that uses a Preferred Roaming List (PRL) database according to a 3GPP2 system selection to specify the prioritization of 3GPP and 3GPP2 systems the mobile device. When the mobile device is powered up, the information in the different MMSS databases is mapped into a common database (“PRL with PLMN records”). The wireless communication device then acts on this information in the common database to perform system selection. | 04-21-2011 |
20110199950 | READING AND CACHING OF SYSTEM INFORMATION TO REDUCE CALL SETUP DELAY - Techniques for reading and caching system information of non-serving systems in order to shorten call setup delay are described. A user equipment (UE) may communicate with a serving system, e.g., in an idle mode or a connected mode. The UE may periodically read system information of at least one non-serving system, e.g., as a background task. The UE may cache (i.e., store) the system information of the at least one non-serving system at the UE. The UE may thereafter access a particular non-serving system among the at least one non-serving system based on access parameters in the cached system information. By caching the system information, the UE can avoid reading the system information of the particular non-serving system at the time of system access, which may then reduce call setup delay. | 08-18-2011 |
20110207473 | METHOD AND APPARATUS FOR MULTI-MODE SYSTEM SELECTION - Devices and methods are provided for optimizing the timing of multi-mode system scans in a wireless communication environment. In one embodiment, the method may involve determining at least one of location and movement of a mobile entity (ME). The method may involve adjusting a timer between preferred system scans based on the at least one of the location and the movement of the ME. For example, determining may involve utilizing a movement sensor (e.g., an accelerometer and/or a voltage-controlled oscillator accumulator) to detect the movement of the ME, and/or receiving signals from a Global Positioning System or the like. | 08-25-2011 |
20110216645 | CIRCUIT SWITCHED FALLBACK PROCEDURE - A CS fallback procedure handles conflict that may arise when handover operations occur during CS fallback. If CS fallback is initiated for an access terminal and handover of that access terminal is then initiated before the CS fallback completes, the target for the handover is informed of the CS fallback so that the target may perform the appropriate CS fallback operations. | 09-08-2011 |
20110249624 | SYSTEM, APPARATUS, AND METHOD TO ENABLE DOMAIN SELECTION IN A MULTIMODE DEVICE - Certain aspects of the present disclosure propose a method for domain selection in a multimode UE. The domain selection method may be used to select domains for short message service (SMS) and/or voice service when the UE has camped on a packet switched (PS) network such as LTE. The proposed domain selection method may take into account UE capabilities, home operator preferences, visited operator preferences, visited network capabilities, and user settings. | 10-13-2011 |
20110310737 | METHOD AND APPARATUS FOR QOS CONTEXT TRANSFER DURING INTER RADIO ACCESS TECHNOLOGY HANDOVER IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate efficient transfer of quality of service (QoS) context during inter-radio access technology (RAT) handovers. In particular, techniques are described herein for establishing rules for whether a user equipment unit (UE) or an associated network should establish QoS for a mixed-mode application, identifying flow to bearer mappings when translating QoS across an inter-RAT handover, mapping QoS parameters of respective RATs, mitigating QoS depreciation upon multiple handovers, performing one or more actions if QoS is not acceptable in a new RAT, maintaining QoS during tunnel mode, and handling scenarios in which a UE moves between a RAT using network-initiated QoS and a RAT using UE-initiated QoS. | 12-22-2011 |
20110310850 | METHOD AND APPARATUS FOR QOS CONTEXT TRANSFER DURING INTER RADIO ACCESS TECHNOLOGY HANDOVER IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate efficient transfer of quality of service (QoS) context during inter-radio access technology (RAT) handovers. In particular, techniques are described herein for establishing rules for whether a user equipment unit (UE) or an associated network should establish QoS for a mixed-mode application, identifying flow to bearer mappings when translating QoS across an inter-RAT handover, mapping QoS parameters of respective RATs, mitigating QoS depreciation upon multiple handovers, performing one or more actions if QoS is not acceptable in a new RAT, maintaining QoS during tunnel mode, and handling scenarios in which a UE moves between a RAT using network-initiated QoS and a RAT using UE-initiated QoS. | 12-22-2011 |
20110310851 | METHOD AND APPARATUS FOR QOS CONTEXT TRANSFER DURING INTER RADIO ACCESS TECHNOLOGY HANDOVER IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate efficient transfer of quality of service (QoS) context during inter-radio access technology (RAT) handovers. In particular, techniques are described herein for establishing rules for whether a user equipment unit (UE) or an associated network should establish QoS for a mixed-mode application, identifying flow to bearer mappings when translating QoS across an inter-RAT handover, mapping QoS parameters of respective RATs, mitigating QoS depreciation upon multiple handovers, performing one or more actions if QoS is not acceptable in a new RAT, maintaining QoS during tunnel mode, and handling scenarios in which a UE moves between a RAT using network-initiated QoS and a RAT using UE-initiated QoS. | 12-22-2011 |
20110312321 | SYSTEM, APPARATUS, AND METHOD FOR IMPROVING CIRCUIT SWITCHED FALLBACK CALL SETUP DELAY IN WIRELESS COMMUNICATION SYSTEMS - In accordance with aspects of the disclosure, a method, apparatus, and computer program product are provided for wireless communication. The method, apparatus, and computer program product may be configured to determine whether a device is switching from a first radio access technology to a second radio access technology to perform a circuit switched call setup process and determine whether at least one of a circuit switched domain registration procedure and a packet switched domain registration procedure is to be performed on the second radio access technology. | 12-22-2011 |
20110317659 | SYSTEM, APPARATUS, AND METHOD FOR CIRCUIT SWITCHED FALLBACK RELIABILITY IN WIRELESS COMMUNICATION SYSTEMS - In accordance with aspects of the disclosure, a method, apparatus, and computer program product are provided for wireless communication. The method, apparatus, and computer program product may be configured to determine that a device is switching from a first cell and a first location to a second cell and a second location to implement a mobile terminated circuit switched fallback process, generate a routing area update message including a flag indicating a pending data packet for communication, and transmit the generated routing area update message. | 12-29-2011 |
20120063414 | Handover of Multimode User Equipment Between Radio Access Technologies for Reduced Call Setup Time - A communication system that employs Wireless Wide Area Networks (WWAN) of different Radio Access Technologies (RATs) ensures that simultaneous handover to 1×RTT and 1×EVDO is attempted only when warranted. The User Equipment (UE) that has multiple transceivers and is actively involved in a packet data session can be transferred from LTE to 1×EVDO. A criterion (e.g., cost, subscriber preference, operator preference, or network data traffic) can be used to determine when it is warranted to incur the setup delay time to perform simultaneous handover of both a voice connection and a packet data session. Conversely, if there is no active data session, generally the UE can be handed over only to 1×RTT for the voice/Short Message Service (SMS) call. In an aspect, the criterion can still dictate setting up simultaneously even for an active packet data session, such as for maintaining a time critical function of the device. | 03-15-2012 |
20120064884 | SYSTEM AND METHOD OF IMPROVING CIRCUIT-SWITCHED FALLBACK PERFORMANCE - Circuit-switched fallback (CSFB) is a technique to deliver voice-services to a mobile, when the mobile is camped in a long-term evolution (LTE) network. This may be required when the LTE network does not support voice services natively. If a user makes a mobile originating (MO) call, or receives a mobile terminating (MT) call, the LIE may inform the LTE network that the UE is leaving for the call by initiating a call setup procedure. However, there may be instances where the call setup procedure may fail. If the call setup procedure was either not initiated, or was initiated but failed, the UE may determine to search for a suitable CS RAT/cell on its own without instructions/commands from the network. Therefore, certain aspects of the present disclosure provide techniques for the UE to find CS services based on information collected at the UE. | 03-15-2012 |
20120064885 | SYSTEM AND METHOD OF IMPROVING CIRCUIT-SWITCHED FALLBACK USER EXPERIENCE - Circuit-switched fallback (CSFB) is a technique to deliver voice-services to a mobile, when the mobile is camped in a long-term evolution (LTE) network. This may be required when the LTE network does not support voice services natively. The LTE network and a 3GPP CS network (e.g., UMTS or GSM) may be connected using a tunnel interface. The UE may register with the 3GPP CS network while on the LTE network by exchanging messages with the 3GPP CS core network over the tunnel interface. If a user receives a mobile terminating (MT) call, the UE may inform the LTE network that the UE is leaving for the call by initiating a call setup procedure. However, there may be instances where the call setup procedure may fail. Therefore, certain aspects of the present disclosure provide techniques for providing an indication of the failed call to the user. | 03-15-2012 |
20120071163 | Method and Apparatus to Enable a UE to Return to a Wireless Network After Failure to Obtain Service - Techniques for enabling a user equipment (UE) to return to a wireless network after failure to obtain a particular service (e.g., voice service) are described. The UE may determine that the wireless network does not support the particular service at a first location (e.g., the current UE location). In response, the UE may disable the wireless network and may refrain from attempting to obtain the particular service (or possibly any service) from the wireless network. The UE may thereafter re-enable the wireless network based on a trigger, which may result from a timer, an event, or broadcast information from another wireless network. After re-enabling the wireless network, the UE may perform cell search and system selection and may detect and select the wireless network. The UE may determine that the wireless network supports the particular service at a second location and may obtain the particular service from the wireless network. | 03-22-2012 |
20120120789 | SYSTEMS AND METHODS FOR IMPROVING CIRCUIT SWITCHED FALLBACK PERFORMANCE - Methods and apparatus for improving Circuit Switched (CS) Fallback performance, such as in an LTE network, are described. In one aspect, a UE may perform a RAU procedure before performing a CS call setup procedure when the UE has camped on a Non-DTM GERAN target after failing to access a redirection target. In another aspect, an MME may determine whether to perform a PS suspension based on an ISR status associated with a user terminal. In another aspect, an eNB may send information associated with a PS suspension to a user terminal. | 05-17-2012 |
20120140731 | DETERMINING A NON-ACCESS STRATUM MESSAGE COUNT IN HANDOVER - Techniques for deriving message counts based at least in part on a locally stored message count and at least a portion of a message count received from a remote network node are disclosed. The message counts can relate to downlink (DL) non-access stratum (NAS) counts. In one aspect, a device can receive a number of least significant bits of the DL NAS count in a handover message. The device can derive a DL NAS count by utilizing a remaining portion of most significant bits of a locally stored DL NAS count, and can determine whether to increment or decrement the most significant bits based at least in part on a parameter to handle cases where the least significant bits of the locally stored DL NAS count have wrapped due to overflow and/or underflow. | 06-07-2012 |
20120218922 | METHODS AND APPARATUS FOR EMPLOYING DIFFERENT CAPABILITIES FOR DIFFERENT DUPLEXING MODES - Certain aspects of the present disclosure propose techniques for independently signaling features supported by a user equipment (UE) in different duplexing modes. The UE may be capable of communicating in frequency division duplexing (FDD) and time division duplexing (TDD) modes. The UE may obtain a FDD-specific feature group indicators (FGIs) set and a TDD-specific FGIs set, and signal at least one of the FDD-specific FGIs set or TDD-specific FGIs set. In addition, the UE may take one or more actions to reduce the likelihood of transitioning to a mode of operation that is different from its current mode of operation. | 08-30-2012 |
20120236709 | SYSTEM AND METHOD FOR PRESERVING SESSION CONTEXT DURING INTER-RADIO ACCESS TECHNOLOGY SERVICE RETRY - A method is provided for facilitating preservation of session context information during an inter-radio access technology service retry. A user equipment (UE) may initiate a data transmission for a first service over a wireless communication session with a first network. Upon ascertaining that the first service has failed over the first network, a failover procedure is initiated by sending a service request for a second service to the first network. The second service may be distinct from the first service and has the effect of suspending the wireless communication session with the first network. The UE then resends the data transmission for the first service over a second network. The UE then resumes use of the wireless communication session over the first network after resending the data transmission over the second network. This resumption is done by using context information for the wireless communication session preserved prior to the suspension. | 09-20-2012 |
20120302241 | TRANSITIONING OF MOBILE DEVICES WITHIN A WIRELESS COMMUNICATION NETWORK BETWEEN MULTIPLE RADIO ACCESS TECHNOLOGIES - Network re-selection by an idle mobile device between multiple radio access technologies (RATs) is provided for communication networks without a network-based solution. When a user equipment (UE) enters idle mode while camped to a first RAT network, it initiates an out of service search procedure that causes the UE to search for other RATs within a same public land mobile network (PLMN). If another RAT network is detected, the UE determines whether the priority of the detected RAT is higher than the priority of the first RAT. When the detected RAT has a higher priority than the first RAT, the UE re-selects and camps to that detected RAT network. If the detected RAT does not have a higher priority or no other RAT is detected within the PLMN, the UE re-camps to the first RAT network. | 11-29-2012 |
20120322446 | METHODS AND APPARATUS FOR RADIO ACCESS TECHNOLOGY SEARCH - Certain aspects of the disclosure relate generally to search of radio access technologies (RAT). For example, certain aspects of the present disclosure relate to a technique for performing higher priority radio access technology (RAT) searches in areas having a plurality of overlapping RATs, such as Global System for Mobile communications (GSM) and Long Term Evolution (LTE). According to certain aspects, a user equipment (UE) may be configured to periodically search for higher priority RATs in neighboring cells. According to certain aspects, upon finding a higher priority RAT cell, the UE may be further configured to evaluate, or “pre-evaluate”, criteria for cell reselection from found cell to the currently camped cell, while still camped on the current cell. The UE may be configured to decide whether or not to switch to the found cell based on the evaluation. | 12-20-2012 |
20120322447 | METHODS AND APPARATUS FOR INTER-RAT CELL RESELECTION - Certain aspects of the disclosure relate generally to search of radio access technologies (RAT). For example, certain aspects of the present disclosure relate to a technique for facilitating higher priority radio access technology (RAT) search and cell reselection in areas having a plurality of overlapping RATs, such as GSM and LTE. According to certain aspects, a user equipment (UE) may generate a local set of cell reselection parameters based on one or more default cell reselection parameters and/or stored system information received during previous connects with found cells. According to certain aspects, the UE may perform cell reselection based on the local set of cell reselection parameters. | 12-20-2012 |
20130070728 | METHODS AND APPARATUS FOR IMPROVING A CALL FALLBACK USER EXPERIENCE - Certain aspects of the present disclosure relate to techniques for improving a circuit-switched fallback (CSFB) user experience. In aspects, methods and systems for autonomously returning a user equipment (UE) from a 2G (2 | 03-21-2013 |
20130084897 | METHODS AND APPARATUSES FOR MANAGEMENT OF SMS MESSAGE IDENTIFICATIONS IN A MULTI-MODE DEVICE - Aspects of the present disclosure propose systems and methods for managing assignment of short message service (SMS) message identifications (IDs) in a multimode device (e.g., mobile station). The proposed methods ensure that a unique message ID is assigned to each SMS transmitted by the mobile station (MS). Each retransmission of the SMS messages may be assigned a message ID similar to or the same as the previous transmission(s) of the SMS message. As a result, a network messaging center may be able to identify duplicate SMS messages that are marked with unique message IDs even if they are transmitted on different air interfaces and/or by different modems (modulators/demodulators). | 04-04-2013 |
20130183965 | SYSTEM AND METHOD OF OPTIMIZING USER EQUIPMENT CAMPING PROCEDURES IN CIRCUIT-SWITCHED FALLBACK - Certain aspects of the present disclosure provide a method for wireless communications. The method generally includes accessing, at a user equipment (UE) capable of communicating via first and second radio access technologies (RATs), a list of base stations of the first RAT, the list comprising information indicating which base stations of the first RAT support a call setup procedure for a call on at least one of the first RAT or a second RAT, and during network acquisition operations, giving preference to one or more base stations of the first RAT that, according to the list, support the call setup procedure. | 07-18-2013 |
20130183981 | METHODS AND APPARATUS FOR IMPROVING CELL REDIRECTION SEARCH TIME - Aspects of the present disclosure provides methods, corresponding apparatus and program products, for improving LTE to another network (e.g., Wideband Code Division Multiple Access, WCDMA) redirection search time. A user equipment (UE) may receive a redirection message indicating a frequency for a potential target cell and may attempt to acquire a target cell based on the frequency indicated in the redirection message. IF the UE's attempt to acquire a target cell based on the indicated frequency fails to find a suitable target cell, the UE may attempt to find a suitable target cell using a heuristic approach involving one or more frequencies different than the frequency indicated in the redirection message. | 07-18-2013 |
20130196663 | SYSTEM SELECTION IN MULTI-RAT USER EQUIPMENT - In certain wireless communication systems, requests for connecting to a radio access technology (RAT) may be ambiguous depending on the communication configuration. For example, in certain RAT priority lists an ambiguity may exist when determining whether a UE should prioritize connection to a TD-SCDMA or WCDMA network. To remove this ambiguity, an indicator may be set in the memory of the UE to indicate network priority in the event of ambiguity. Network prioritization may be based at least in part on the indicator. | 08-01-2013 |
20130201850 | VOICE/DATA HYBRID MODE - A method for voice/data hybrid mode within a user equipment (UE). The method includes detecting a first radio access technology (RAT) activity in response to a received first RAT suspend request for a second RAT tune-away. The method also includes adaptively performing the first RAT suspend request according to a predetermined priority of the detected first RAT activity and a second RAT tune-away activity. A receive chain is shared between a first RAT modem and a second RAT modem of the UE. | 08-08-2013 |
20130203417 | METHODS AND APPARATUS FOR MANAGING MOBILITY IN A MULTI-RADIO DEVICE - Methods, apparatus, and computer program products for managing mobility in a multi-radio device are provided. One example method generally includes detecting that a first channel is not usable for communicating via a first radio access technology (RAT); receiving a message to redirect from a second channel to the first channel; determining the first channel is in a set of one or more blocked channels not usable for the first RAT; and in response to the determination, taking one or more actions. Another example method generally includes detecting that a first channel is not usable for communicating via a first RAT and providing an indication to a network that a user equipment (UE) no longer supports the first channel. | 08-08-2013 |
20130258998 | METHODS AND APPARATUS FOR IMPROVING DATA SERVICE AVAILABILITY - Certain aspects of the present disclosure relate to methods and apparatus for improving data service availability. Certain aspects provide methods and apparatus for wireless communications by a UE including determining, while the UE is in a coverage area of a first network, that a connection to a second network, comprising a packet data network (PDN), is disconnected locally, and taking at least one action to avoid a rejection of a request to connect to the second network. | 10-03-2013 |
20130260736 | APPARATUS AND METHOD FOR SIGNALING NETWORK CAPABILITIES FOR A WIRELESS DEVICE - Methods and apparatus for wireless communication in a wireless communication network include maintaining a Public Land Mobile Network (PLMN) list and receiving an information request from a network, wherein the information request is associated with configuration parameters associated with the PLMN list. Aspects of the methods and apparatus configuring the UE based on the configuration parameters associated with the PLMN list. Aspects also include replying to the network that the UE is configured with the configuration parameters associated with the PLMN list. | 10-03-2013 |
20130265987 | APPARATUS AND METHOD FOR IMPROVING DEVICE HANDOVER DURING A CALL - Disclosed are methods and apparatus for improving the performance of a user equipment handover during a data call. In one aspect, a source base station determines to handover user equipment (UE) to a target base station. The source base station first determines whether the UE is in a data call prior to the handover. The source base station then modifies one or more of connected mode discontinuous reception (CDRX) and semi-persistent scheduling (SPS) parameters with the UE based on determining to handover the UE and determining that the UE is in the data call. | 10-10-2013 |
20130329638 | AVOIDING PREMATURE E-UTRAN DISABLING - Methods, systems, and apparatuses for mobility management in wireless communications systems that provide both voice connection services and data services are disclosed. In some aspects, enhanced connectivity with wireless networks after a failure of voice connection services is provided. A counter may be utilized in connection with a combined registration procedure in which a device requests registration for both data services and voice connection services in the wireless network. The counter may track failed attempts to register for voice connection services when the request is accepted for data services. The counter may be reset in response to a deregistration event, such as a user input or a network command, allowing a full number of attempts for later registration with the wireless network. | 12-12-2013 |
20130332720 | SYSTEMS AND METHODS FOR THERMAL MITIGATION WITH MULTIPLE PROCESSORS - A wireless communication device for thermal mitigation with multiple processors is described. The wireless communication device includes a first communications processor that processes a data call. The wireless communication device also includes a second communications processor coupled to the first communications processor. The first communications processor performs a thermal mitigation operation by sending instructions to the second communications processor when at least one thermal threshold is reached. The second communications processor receives and executes the instructions. | 12-12-2013 |
20140003364 | METHOD AND APPARATUS FOR IMPROVING CALL SETUP PERFORMANCE | 01-02-2014 |
20140044030 | SYSTEM AND METHOD OF IMPROVING STANDBY TIME IN M2M DEVICES - A method for wireless communication includes receiving a signaling message from a wireless communication network. The signaling message includes a session interval and a device connection state indicator. The method also includes determining a device connection state based on the device connection state indicator. The method further includes transitioning to the device connection state for a time period corresponding to the session interval. | 02-13-2014 |
20140099952 | METHODS AND SYSTEMS FOR AVOIDING TRANSITIONS BETWEEN RADIO ACCESS TECHNOLOGIES WHEN PACKET DATA NETWORKS ARE INACCESSIBLE - Methods and apparatus are provided for avoiding attempts by a UE to attach to a RAT network when that RAT network is unavailable. According to certain aspects, the UE may detect scenarios when the RAT network is unavailable and take preemptive action to prevent the UE from attempting to acquire service on that RAT. For example, the UE may effectively remove that RAT from a list of supported RATs by sending a UE capability message indicating that RAT is not supported, which may prevent network-initiated transitions of the UE to that RAT. The UE may also remove the unavailable RAT from an internal list of supported RATs, which may prevent UE-initiated transitions to that RAT. | 04-10-2014 |
20140105125 | CRITERIA FOR UE-INITIATED BEARER DEACTIVATION WHEN MAXIMUM NUMBER OF ACTIVE BEARERS HAS BEEN REACHED - A UE determines a need to deactivate one or more bearer contexts. The UE then selects for deactivation one or more active bearer contexts based on a context selection criteria, to avoid exceeding a maximum number of allowable active bearer contexts for the UE. The context selection criteria may relate to one or more of: current usage of active bearer contexts, information from applications associated with active bearer contexts, priority level of applications associated with active bearer contexts, order of active bearer context creation, measure of data activity through active bearer contexts, quality of service associated with active bearer contexts, type of service, e.g. voice or data, for which bearer contexts were activated, bandwidth allocations of active bearer contexts, a criteria predefined by the UE, network or user, or a random selection. Once one or more active bearer contexts have been selected, the UE deactivates the selected active bearer contexts. | 04-17-2014 |
20140153547 | METHOD AND APPARATUS FOR QOS CONTEXT TRANSFER DURING INTER RADIO ACCESS TECHNOLOGY HANDOVER IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate efficient transfer of quality of service (QoS) context during inter-radio access technology (RAT) handovers. In particular, techniques are described herein for establishing rules for whether a user equipment unit (UE) or an associated network should establish QoS for a mixed-mode application, identifying flow to bearer mappings when translating QoS across an inter-RAT handover, mapping QoS parameters of respective RATs, mitigating QoS depreciation upon multiple handovers, performing one or more actions if QoS is not acceptable in a new RAT, maintaining QoS during tunnel mode, and handling scenarios in which a UE moves between a RAT using network-initiated QoS and a RAT using UE-initiated QoS. | 06-05-2014 |
20140162620 | METHODS AND APPARATUS FOR UPDATING A DEVICE CONFIGURATION - Methods and apparatus are provided for device configuration (e.g., feature segment loading and system selection). Certain aspects of the present disclosure generally relate to operating a user equipment (UE) in a first radio access network (RAN) with a first set of modem features that supports the first RAN, detecting a second RAN not supported by the first set of modem features, and rebooting the modem software to load a second set of modem features that supports the detected RAN. For certain aspects, the first RAN may be a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network and the second RAN may be a Wideband-Code Division Multiple Access (W-CDMA) network or Long-Term Evolution (LTE) network. This allows features to be loaded into memory (e.g., only) when they are required to support a detected RAN, rather than loading an entire image, thereby conserving DRAM and increasing efficiency. | 06-12-2014 |
20140177429 | TECHNIQUES FOR REDUCING NETWORK CONGESTION IN A WIRELESS COMMUNICATIONS SYSTEM - Methods, systems, and devices are described for reducing congestion in a wireless communications system. A second connection failure is detected, and a difference between a timestamp of the second connection failure and a timestamp of a first connection failure is calculated. Upon determining that the difference satisfies a first time threshold, information relating to one or more previous connection failures is cleared. A time period is identified. A number of connection failures from a cell that occur during the time period is identified. A determination is made as to whether the number of connection failures satisfies a threshold. Upon determining that the number of connection failures satisfies the threshold, a future connection request may be withheld for a time period. | 06-26-2014 |
20140179255 | TECHNIQUES FOR POWER CONSERVATION IN EMERGENCY BROADCAST MESSAGE RECEPTION - Techniques are described for power conservation in emergency broadcast message reception in a wireless communications system. In accordance with a method for conserving power, one or more segments of an emergency broadcast message in an access stratum are received. The emergency broadcast message is identified as a duplicate emergency broadcast message based at least in part on one or more identifiers of the received one or more segments. The receipt of additional segments of the emergency broadcast message is terminated. | 06-26-2014 |
20140269349 | ESTABLISHING RELIABLE ALWAYS-ON PACKET DATA NETWORK CONNECTIONS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus, e.g., a network entity, may establish a connection between a user equipment (UE) and a packet data network, designate the packet data network with an always-on status, and notify the UE, while the UE is in the idle mode, when a loss of connection with the packet data network is detected. The UE may be connected to another packet data network when the loss of the connection occurs. A service provided by the packet data network may be designated as having an always-on status and the UE may be notified when a loss of the service is detected | 09-18-2014 |
20140269509 | SYSTEM AND METHOD OF PUBLISHING SERVICE AVAILABILITY - Aspects of the present disclosure provided techniques for wireless communications, and more particularly, to techniques and apparatus for publishing service availability. According to certain aspects, a method for wireless communications by a user equipment (UE) is provided. The method generally includes providing status information to a presence server that the UE is available via the first network service, wherein the presence server is a network-based entity that provides presence status services for a plurality of destination devices including the UE, detecting one or more operational limitations that might prevent the UE from being available via the first network service, and updating the presence server, in response to the detecting, to indicate the UE is not available via the first network service. | 09-18-2014 |
20140315548 | METHODS AND APPARATUS FOR ACCESS CLASS BARRING FOR VOIP CALLS - Certain aspects of the present disclosure relate to methods and apparatus for transmission restriction. An exemplary method generally includes initiating a mobile originating (MO) call, determining availability of parameters for a first access gating mechanism for determining whether to bar or allow transmission of the MO call, selecting the first access gating mechanism or a second access gating mechanism, based on the determination of the availability of the parameters, and applying the selected gating mechanism to determine whether to bar or allow the MO call. | 10-23-2014 |
20140315587 | METHODS AND APPARATUSES FOR MANAGEMENT OF SMS MESSAGE IDENTIFICATIONS IN A MULTI-MODE DEVICE - Aspects of the present disclosure propose systems and methods for managing assignment of short message service (SMS) message identifications (IDs) in a multimode device (e.g., mobile station). The proposed methods ensure that a unique message ID is assigned to each SMS transmitted by the mobile station (MS). Each retransmission of the SMS messages may be assigned a message ID similar to or the same as the previous transmission(s) of the SMS message. As a result, a network messaging center may be able to identify duplicate SMS messages that are marked with unique message IDs even if they are transmitted on different air interfaces and/or by different modems (modulators/demodulators). | 10-23-2014 |
20140315588 | METHODS AND APPARATUSES FOR MANAGEMENT OF SMS MESSAGE IDENTIFICATIONS IN A MULTI-MODE DEVICE - Aspects of the present disclosure propose systems and methods for managing assignment of short message service (SMS) message identifications (IDs) in a multimode device (e.g., mobile station). The proposed methods ensure that a unique message ID is assigned to each SMS transmitted by the mobile station (MS). Each retransmission of the SMS messages may be assigned a message ID similar to or the same as the previous transmission(s) of the SMS message. As a result, a network messaging center may be able to identify duplicate SMS messages that are marked with unique message IDs even if they are transmitted on different air interfaces and/or by different modems (modulators/demodulators). | 10-23-2014 |
20150056993 | CONNECTED MODE MOBILITY BETWEEN RADIO ACCESS NETWORKS - A method, an apparatus, and a computer program product for wireless communication are provided in which a user equipment performs an inter-radio access technology (RAT) mobility procedure from a first network to a second network while idle mode signaling reduction (ISR) is active, locally deactivates ISR in connection with completion of the inter-RAT mobility procedure, and initiates a location management procedure in the second network. Depending on the respective type of the first and second network, and the connection state of the UE with respect to the first network, the mobility procedure may be performed in response to a mobility command received from the first network, or in response to a mobility condition of the first network as detected by the UE. | 02-26-2015 |
20150063216 | ENHANCED OUT-OF-SERVICE SCAN AND SYSTEM SELECTION FOR DUAL-SUBSCRIPTION, DUAL-ACTIVE DEVICES - A system, a method and an apparatus are described. The apparatus comprise a modem that determines frequencies at which a transceiver of a wireless device is susceptible to interference generated by a different transceiver of the wireless device, and that modifies a search for a radio access network based on the one or more frequencies. The first transceiver may be susceptible to the interference by means of transmission of the interference through one or more circuits within the wireless device. A threshold power level may be modified based on an estimate of the power of the interference. The threshold power level may be used to determine presence of a pilot signal. The interference may be modeled based on a list of frequencies associated with one or more subscriptions of the wireless device. An order of searching for pilot signals may be modified. | 03-05-2015 |
20150065143 | ENHANCE PERFORMANCE OF MAKING AN EMERGENCY CALL DURING RADIO LINK FAILURE OVER RADIO ACCESS TECHNOLOGY - Methods, systems, apparatuses and devices are described for managing a call during radio link failure. In one embodiment, radio link failure over a radio access technology may be detected during or after a call setup procedure. A public land mobile network and an equivalent public land mobile network may be selected. An initial search for cells of the radio access technology may be performed over the selected public land mobile network and the equivalent public land mobile network. The initial search may be performed once or twice based on a configurable parameter. | 03-05-2015 |