Patent application number | Description | Published |
20100015978 | PREFERRED SYSTEM SELECTION ENHANCEMENTS FOR MULTI-MODE WIRELESS SYSTEMS - Systems and methodologies are described that facilitate improved multi-mode system selection in a wireless communication system. As described herein, various techniques can be utilized to synthesize system databases corresponding to disparate groups of radio access technologies (RATs), such as a Public Land Mobile Network (PLMN) list and/or a Preferred Roaming List (PRL), with one or more overlay databases and associated location information to generate a multi-mode list of preferred systems. As described herein, a preferred system listing can be constructed to leverage fine granularity of information in one or more databases while still supporting databases with coarser information. Techniques are additionally described herein for augmenting and/or grouping one or more overlay databases to facilitate a higher available granularity of information for various RATs than that provided in system databases corresponding to the RATs. Techniques are additionally provided for automated generation of preferred system listing based on changes to observed location. | 01-21-2010 |
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 |
20100189024 | PS-Poll Transmission Opportunity in WLAN - Embodiments of the invention provide a dynamic priority adjustment algorithm for PS-Poll packets in WLAN and dynamic CW (contention window) management algorithm for PS-Poll packets in WLAN. These improve the performance of traffic flows associated with STAs in power save mode. Maintain the QoS requirements of the traffic flows. When PS-Poll packets are not able to be sent, the QoS STA will experience a long delay of the downlink data, even if the downlink data has been assigned a higher AC. The delay may potentially violate the QoS bound required by the data flow. Using the embodiments can significantly decrease the probability of this event. | 07-29-2010 |
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 |
20110176436 | METHOD AND APPARATUS THAT FACILITATES REDIRECTING WIRELESS TERMINALS BETWEEN WIRELESS NETWORKS - Aspects are described for redirecting wireless terminals between wireless networks. In a first embodiment, a coverage quality of user equipment within a first wireless network is monitored. Multiple candidate frequencies are then ascertained in response to the coverage quality to facilitate a communication between the user equipment and a second wireless network. The candidate frequencies are then communicated to the user equipment. In another embodiment, an indication of a plurality of candidate frequencies is received, and a failure in performing a handover from a first wireless network to a second wireless network is detected. For this embodiment, the handover is attempted via a primary frequency. An alternative frequency is then selected from the plurality of candidate frequencies in response to the failure, and a communication with the second wireless network is established via the alternative frequency. | 07-21-2011 |
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 |
20110207491 | Apparatus for and Method of Improving Multi-RAT Out-of-Service Performance - Systems and methodologies are described that facilitate re-acquisition of service after an out-of-service (OOS) condition occurs. Mobile devices are equipped to retain information about the system in use just prior to the OOS condition occurring and use this information to determine the parameters of a service search. These parameters can include one or more of a determination of which radio access technologies (RATs) will be searched, the amount of time allocated to search for each RAT, and the order in which each RAT may be searched. | 08-25-2011 |
20110212722 | METHOD AND APPARATUS FOR SELECTING WIRELESS COMMUNICATION SYSTEMS - Methods and apparatuses are provided that facilitate avoiding one or more wireless communication systems based at least in part on determining a level of unreliability of a reverse link channel related to a system. This can be based at least in part on determining whether the system can be accessed over the reverse link channel. If not, the wireless communication system can be avoided to conserve power utilized to perform such access attempts. Where the unreliability is temporary, however, some access attempts can be performed for systems of higher priority than a current system during the period of avoidance of one or more higher priority systems. | 09-01-2011 |
20110286427 | Methods and Apparatus for Calling Party Number Display Solutions for 1xCSFB - Controller and method for Handover (HO) based 1×CSFB communicates Calling Party Number (CPN) to User Equipment (UE) a in a cellular communication system. A first solution provides Interworking Solution (IWS) adding CPN sent to target Base Station Controller (BSC) via Mobile Switching Center (MSC) in Interoperability Specification (IOS) HO messages. A second solution provides that IWS sends CPN with Air Interface HO message and stores the CPN until UE transition to the target Radio Access Network and acquires a traffic channel. A third solution provides that IWS receives CPN from MSC with a paging message and stores the CPN until UE transition to the target Radio Access Network and acquires a traffic channel. A fourth solution provides sending AWI message to the target Radio Access Network from the MSC. A fifth solution provides that IWS sends CPN via Feature Notification Message (FNM) data tunneled to UE before the paging message to let user decide whether to accept a call before leaving 3G/4G cellular communication. | 11-24-2011 |
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 |
20110317635 | APPARATUS AND METHOD FOR RECEIVING CELL SYSTEM INFORMATION DURING AUTONOMOUS GAPS - Methods and apparatuses are provided that facilitate receiving signals from one or more base stations while communicating with a serving base station. Devices can receive the signals in autonomous gaps, during which the device can tune away to receive the signals. A device can report a low channel quality indicator (CQI) value to the serving base station prior to the autonomous gap to decrease a likelihood that the base station will schedule transmissions to the device, or at least decrease a data rate for transmissions. In another example, the device can report a CQI reserved for indicating starting an autonomous gap. In either case, the described methods and apparatuses can minimize data loss during the autonomous gap. Once the device returns from receiving the signals, the device can report an improved or actual CQI value to the base station to resume communications. | 12-29-2011 |
20120039167 | SYSTEM, APPARATUS, AND METHOD FOR IMPROVING REDIAL PERFORMANCE 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 acquire a first wireless network for data packet communication on a first radio access technology, request service for a voice call from a second radio access technology via a data tunnel provided by the first radio access technology, determine a failure in obtaining the requested service for the voice call, attempt to re-acquire the first radio access technology and redial the voice call via the first radio access technology in response to determining the failure, obtain the requested service for the voice call if performing of the attempt was less than or equal to a threshold, and acquire a second wireless network via the second radio access technology if performing of the attempt was greater than the threshold. | 02-16-2012 |
20120208534 | SYSTEM AND METHOD OF DECREASING TIME TO BEGIN ACQUISITION OF CELLULAR NETWORKS AFTER POWER UP - In the system-selection solution used in wireless devices, system selection files may be read from a Universal Integrated Circuit Card (UICC) and converted into a priority list. The priority list may specify the relative priority of 3GPP and 3GPP2 systems and govern system selection by a device. Traditionally, generation of the priority list may be performed at every power up of the device. However, the reading of the system selection files from the UICC and generation of the priority list may take a period of time which may affect the performance of the device. For certain aspects of the present disclosure, the priority list may be generated after power up only when system selection files change. Therefore, the time for acquiring a wireless network upon the power up of a device may be reduced, particularly when system selection files remain the same as before. | 08-16-2012 |
20120250548 | METHODS AND APPARATUS FOR REDUCING POWER CONSUMPTION ASSOCIATED WITH PERFORMING RESELECTION IN A MULTI-RAT SYSTEM - Certain aspects of the present disclosure propose methods and apparatuses for reducing power consumption associated with performing reselection between radio access technologies (RATs). For example, a network that supports first and second RATs may obtain a list of neighbor base stations of a third RAT and determine whether to transmit the neighbor list on the first RAT, the second RAT, or both. In another aspect, a user equipment (UE) may combine information from the neighbor lists received from the first and the second RATs, and decide whether to take measurements in the third RAT based on the combined information. The UE may also maintain a central entity with measurements taken in the third RAT based on the neighbor lists received from the first and the second RATs and decide whether to perform cell reselection based on measurements in the central entity. | 10-04-2012 |
20120258709 | WORLD MODE SCANNING CONTROL - A method and apparatus for world-mode devices capable of managing technology selection for multimode roaming between existing access technologies, as well as possible future access technologies, in a manner that eliminates wasteful scanning for non-existent systems and reduces roaming charges is disclosed. The method allows the device an opportunity to reacquire its home system before scanning for available roaming network resources in a prioritized manner that mitigates roaming costs, while conserving power and acquisition delays by eliminating scanning for non-existent system types. A minimum OOS duration is imposed on a home system before acquisition of a roaming partner to provide more time to re-acquire the home system. Preferred partner scanning and acquisition reduces roaming charges, while scanning for non existent systems is eliminated altogether. | 10-11-2012 |
20120258710 | WORLD MODE SCANNING CONTROL - A method and apparatus for world-mode devices capable of managing technology selection for multimode roaming between existing access technologies, as well as possible future access technologies, in a manner that eliminates wasteful scanning for non-existent systems and reduces roaming charges is disclosed. The method allows the device an opportunity to reacquire its home system before scanning for available roaming network resources in a prioritized manner that mitigates roaming costs, while conserving power and acquisition delays by eliminating scanning for non-existent system types. A minimum OOS duration is imposed on a home system before acquisition of a roaming partner to provide more time to re-acquire the home system. Preferred partner scanning and acquisition reduces roaming charges, while scanning for non existent systems is eliminated altogether. | 10-11-2012 |
20130023265 | Silent Redial During Mobile-Originated Call - Aspects of the present disclosure provide techniques to speed up and improve silent redial success rates in wireless communications. A user equipment (UE) may determine how to attempt retrying a mobile originated (MO) call and procedures for selecting a subsequent system for attempting the call based, at least in part, on a restriction status of the call and a detected failure. | 01-24-2013 |
20130090117 | METHOD AND APPARATUS FOR OPTIMIZED REACQUISITION OF WIRELESS COMMUNICATIONS SYSTEMS - Motion status states reported by an advanced motion detection process or other means of obtaining a movement state of Stationary or Non-Stationary from filtered accelerometer data are utilized to reacquire service during Out of Service scenarios. Both movement states operate in three power phases: aggressive scanning or normal power mode, slow scanning or moderate power mode, and deep sleep or power saving mode. The scanning rate, power mode, scanning period and/or channel list depend upon the movement state and power phase. Motion information obtained from an advanced motion detection process provides substantial improvements in service reacquisition performance and power consumption in stationary Out of Service scenarios. When compared to traditional service reacquisition scanning routines, the reductions in average current can be achieved of: at a 5-minute OOS mark, ˜45% reduction, at a 15-minute OOS mark, ˜60% reduction and at a 6-hour OOS mark, ˜50% reduction. | 04-11-2013 |
20130090151 | METHOD AND APPARATUS FOR ADVANCED MOTION DETECTION IN WIRELESS COMMUNICATIONS SYSTEMS - Advanced Motion Detection in Wireless Communication Systems processes accelerometer or other sensor input data to distinguish between random in-place movements and actual start of motion that could produce a change in the user's location by filtering unsustained random motion. Random in-place motion such as table banging, knee jiggling, vibration, etc. are filtered out from Stationary and Non-Stationary motion state determinations. The process utilizes data from motion sensors or any accelerometer standard in all smart mobile devices and any mobile device that has automatic portrait-landscape switching (screen rotation). A state machine processes sensor or other input to produce a filtered Stationary or Non-Stationary output movement state unaffected by transient motion or rest periods. A sensor processing subsystem (SPS), or other low power processor for processing sensor or other input may be implemented to reduce power consumption and processing overhead while, for example, a modem processor or other high power processor is in a sleep mode. | 04-11-2013 |
20130094446 | OPTIMIZATIONS TO CIRCUIT-SWITCHED FALLBACK (CSFB) PROCEDURE - 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. Certain aspects of the present disclosure provide techniques that may help reduce delays in call setup related to CSFB and, in some cases, avoid unnecessary paging. | 04-18-2013 |
20130107721 | DISCOVERING AN EVOLVED MULTICAST BROADCAST MULTIMEDIA SERVICE IN SINGLE OR DUAL BAND LTE | 05-02-2013 |
20130156004 | TECHNIQUES TO PERFORM EVOLVED HIGH RATE PACKET DATA (eHRPD) NETWORK SPECIFIC SCANNING - Evolved High Rate Packet Data (eHRPD) network specific scanning process includes storing first network information indicating whether a channel frequency corresponds to an evolved High Rate Packet Data (eHRPD) network within a first persistent memory. The process also includes storing second network information indicating whether the channel frequency corresponds to a High Rate Packet Data (HRPD) network within a second persistent memory. The process further includes maintaining Internet Protocol (IP) continuity according to the first and second network information stored within the first and second persistent memories. | 06-20-2013 |
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 |
20130201890 | Dual Domain Camping With a Single Radio UE - A method for 1x/LTE dual domain camping with a single radio UE is described. The method includes adaptively sharing a first receive chain and a second receive chain between a first radio access technology (RAT) modem and a second RAT modem of the single radio UE. | 08-08-2013 |
20130203410 | SYSTEMS AND METHODS FOR CREATING AND MAINTAINING A DATABASE OF COMMUNICATION SYSTEMS - A method for creating and maintaining a database of communication systems by a wireless communication device is described. The method includes detecting one or more other communication systems while connected to a first communication system. The method also includes populating a database with system information corresponding to the first communication system and the one or more other communication systems. The database includes a mapping between the first communication system and the one or more other communication systems. The method additionally includes determining a second communication system to search for based on the database and a connection to the first communication system. | 08-08-2013 |
20130223230 | Serving Multiple Subscribers Through a Software-Enabled Access Point - Methods and apparatus for serving multiple subscribers through a software-enabled access point (softAP) are described. One example method generally includes establishing at least one wireless wide area network (WWAN) connection for one or more wireless local area network (WLAN) clients, wherein each WLAN client belongs to one of a plurality of subscriber groups, and monitoring use of each WWAN connection for each subscriber group of the plurality of subscriber groups. | 08-29-2013 |
20130235843 | ALLEVIATION OF TCP PERFORMANCE DEGRADATION DUE TO CARRIER SUSPENSION OR UE TUNE-AWAY - A method, an apparatus, and a computer program product for wireless communication are provided in which a probability of occurrence of an event expected to occur within a period of time is determined, where the event comprises one or more of a tune-away event and a suspension event. One or more transmission control protocol parameters are manipulated before the occurrence of the event when the probability of occurrence exceeds a threshold to increase a retransmission time out parameter value, or to maintain a desirable congestion window size. The transmission control protocol parameters may be manipulated by delaying, duplicating or dropping acknowledgements and/or by selectively dropping received packets before, during, or after the event. | 09-12-2013 |
20130244660 | MITIGATING PAGING COLLISION FOR DUAL-CAMPED SINGLE RADIO RECEIVERS - Aspects of the present disclosure generally relate to wireless communication and to handling paging cycle overlaps by a dual camped UE. According to an aspect, a UE may detect a paging occasion of a cell in the first RAT and a paging occasion of a cell in a second RAT, and camp on a third RAT upon determining that the paging occasions overlap. Prior to camping on the third RAT, according to aspects, the UE may perform a cell reselection in the first RAT after determining that the paging occasions of the first and second RATs overlap, detect a paging occasion of the reselected cell in the first RAT, and camp on the third RAT when the paging occasion of the reselected cell in the first RAT and the paging occasion of the second RAT overlap. | 09-19-2013 |
20130273913 | SYSTEMS AND METHODS FOR EFFICIENT WIRELESS SYSTEM SCANNING - A method for scanning for wireless systems is described. The method includes camping on a first system of a first system type. The method also includes maintaining a second system type not available list. The method additionally includes maintaining a second system type available list. The method further includes detecting a scan trigger. The method also includes determining whether the first system is in the second system type not available list. The method additionally includes scanning for second system type systems based on a timer. | 10-17-2013 |
20130273916 | ENHANCED INTER-RAT MOBILITY SUPPORT USING INTER-RAT CHANNEL AVOIDANCE - Methods, systems, and devices are described for improving inter-network mobility performance in multiple network wireless communication systems by using channel avoidance information from a first network using a first radio access technology (RAT) to modify inter-RAT behavior of a second network using a second RAT. In some embodiments, the second network queries the first network for channel avoidance information and applies the channel avoidance information in suppressing inter-RAT channel measurements, avoiding inter-RAT redirection, and/or avoiding inter-RAT reselection. In embodiments, inter-RAT channel measurement suppression, inter-RAT redirection avoidance, and/or inter-RAT reselection avoidance is performed by the mobile device. In other embodiments, channel avoidance information of the first network may be communicated to other network entities of the second network and one or more of these entities may modify various inter-RAT behaviors. | 10-17-2013 |
20140071940 | METHOD AND APPARATUS FOR SELECTIVE BETTER SYSTEM RESELECTION FOR WIRELESS DEVICES CAPABLE OF CELL RESELECTION - Aspects of the present disclosure are directed to methods and apparatus for selective better system reselection for wireless devices capable of cell reselection. An apparatus for wireless communication is configured to receive a message from a current system, the message including a neighbor list having one or more neighbor systems. The apparatus compares the neighbor list to a local preferred systems list, and determine an existence of a preferred neighbor system in the local preferred systems list. The preferred neighbor system has higher priority than that of the neighbor systems in the neighbor list. The apparatus determines whether to perform Better System Reselect (BSR) for the preferred neighbor system instead of cell reselection based on the determination. | 03-13-2014 |
20140105041 | METHOD AND APPARATUS FOR PACKET LOSS RATE-BASED CODEC ADAPTATION - A method, an apparatus, and a computer program product for wireless communication are provided where, at a first wireless node, a weighted average of a frame loss rate is determined for a plurality of frames transmitted from a second wireless node using a first codec; feedback is transmitted to the second wireless node based at least in part on the frame loss rate; and one or more frames are received from the second wireless node using a second codec, responsive to transmitting the feedback. Also, transmitting from a first wireless node a plurality of frames to a second wireless node using a first codec; receiving frame loss rate information from the second wireless node responsive to the transmitting; selecting a second codec, based at least in part on the frame loss rate information, and transmitting a second plurality of frames to the second wireless node using the second codec. | 04-17-2014 |
20140118462 | METHODS TO ENHANCE VIDEOTELEPHONY TO ACHIEVE LOCAL QOS - A method, an apparatus, and a computer program product for wireless communication at a first user equipment (UE) are provided. The apparatus sends a request to a second UE for establishing a call connection, receives from the second UE an acknowledgment for establishing the call connection, establishes at least one first dedicated bearer between the first UE and a network for communicating media packets with the second UE, sends first dummy data to the second UE via the established at least one first dedicated bearer, receives at least one of second dummy data or a media packet from the second UE via the established at least one first dedicated bearer, and exchanges media packets with the second UE via the established at least one first dedicated bearer after receiving the at least one of the second dummy data or the media packet from the second UE. | 05-01-2014 |
20140146784 | METHOD AND APPARATUS FOR DECREASING LTE RE-ACQUISITION DELAY IN S102-LESS CSFB - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. In one aspect, the UE may establish a context for a first RAT, perform an activity involving at least one transmission via a second RAT without initiating a procedure to suspend the context for the first RAT when a duration of the activity is less than a threshold, and communicate via the first RAT using the context after the activity is performed. In another aspect, the UE may receive one or more signals via at least a first RAT, transmit via a second RAT, and perform at least one cell reselection procedure using the one or more signals during the transmission via the second RAT. | 05-29-2014 |
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 |
20140273866 | METHOD AND APPARATUS FOR CONTROLLING RECEIVE DIVERSITY ON A WIRELESS DEVICE - Techniques for controlling receive diversity on a wireless device are disclosed. In one aspect, one or more thresholds are determined based on one or more parameters. One or more other parameters are compared against the one or more thresholds to determine whether to enable or disable receive diversity. For example, a wireless device may determine a threshold value based on a first parameter related to communication of the wireless device. The wireless device may decide to enable or disable receive diversity based on a second parameter and the threshold value. The wireless device may receive data transmission with receive diversity when a decision is made to enable receive diversity. The first parameter may relate to characteristics of data being received by the wireless device and may be represented by percentage downlink utilization. The second parameter may relate to channel conditions and may be represented by an improvement in received signal quality with receive diversity enabled. | 09-18-2014 |
20150043534 | METHOD AND APPARATUS FOR LTE RADIO ACCESS NETWORK SHARING - A method, an apparatus, and a computer program product for wireless communication are provided in which user equipment performs a circuit-switched fallback procedure to connect to a CDMA2000 network. The CDMA2000 network may be selected by the UE or by the network. A plurality of PLMN IDs may be maintained, where the IDs relate to a network that includes an LTE RAN. Each PLMN ID may be associated with a CDMA2000 network sharing the LTE RAN. A CDMA2000 network may be selected for circuit-switched fallback of a user equipment operating in the LTE RAN. The user equipment may be configured to perform a circuit-switched fallback procedure on the selected CDMA2000 network. The CDMA2000 network may be selected by a mobility management entity responsive to a PLMN selection procedure. The PLMN selection procedure may be performed when the UE reports multiple-operator capability. | 02-12-2015 |