Patent application number | Description | Published |
20120020393 | USER DEVICE DORMANCY - In a particular embodiment, a method includes sending a message from a communication device to a radio network controller. The message indicates that a data session has ended. The data session is supported by a wireless channel between the communication device and the radio network controller. After a time period following the sending of the message, a second message is selectively sent to the radio network controller. The second message indicates that the data session has ended. The second message is selectively sent based at least in part on whether a measurement indicates that data was communicated via the wireless channel during the time period. | 01-26-2012 |
20120178402 | Optimized Limited Service Acquisition in a Multiple Subscription Device - Mobile devices, such as a dual standby global phone, can have multiple subscriptions to access different radio access technologies, such as Global System for Mobile Communications (GSM) and Code Division Multiple Access (CDMA) technologies. A selective scanning utility recognizes that emergency calls can be processed in any active subscription rather than being independently invoked to obtain a plurality of ways to make an emergency call. The utility limits service acquisition to just one of all active subscriptions in device, thereby achieving the objective of staying camped for limited service without needing to perform cell selection on emergency call origination on a secondary subscription at the cost of battery service. For single-radio devices, this solution also increases the availability of the first selected cell by avoiding the need to tune away for cell selection on the secondary subscription. | 07-12-2012 |
20120264425 | SELECTIVE BAND-SCANNING BY A MULTI-SIM USER EQUIPMENT (UE) IN A WIRELESS COMMUNICATIONS SYSTEM - In an embodiment, a wireless communications device (WCD) is provisioned with a plurality of subscriber identity modules (SIMs). The WCD determines a first set of bands (BAND | 10-18-2012 |
20130016601 | APPARATUS AND METHOD FOR MAINTAINING A CIRCUIT-SWITCHED VOICE CALL IN A MULTI-RAB WIRELESS COMMUNICATION SYSTEM IN AN AREA OF WEAK COVERAGE - An apparatus and a method are provided for improving user experience in a multi-radio access bearer (multi-RAB) wireless communication system. After a user equipment establishes a circuit-switched communication link and a packet-switched communication link with a core network, it may receive an indication of an error associated with the packet-switched communication link. Here, if the value of a timer such as the RAB re-establishment timer T314 has a predetermined value (e.g., 0), the user equipment may release the packet-switched communication link, and maintain the circuit-switched communication link. The packet-switched communication link may then be re-established. In this fashion, errors that may occur on the data call need not interrupt a voice call. | 01-17-2013 |
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 |
20130090137 | APPARATUS AND METHODS FOR REDUCING PAGE LOSS IN MULTIPLE SUBSCRIPTION, MULTIPLE RADIO ACCESS TECHNOLOGY DEVICES - Disclosed are methods and apparatus for reducing page loss in a multiple subscription, multiple radio access wireless device, such as a dual SIM wireless device. The disclosed methodology and apparatus determine whether a conflict will arise between paging channel information received from at least two or more subscriptions from two or more radio access networks using a single receiver in the wireless device. The reception for paging channel information via the wireless receiver is switched to receive the paging channel information from a neighboring cell for one of the two subscriptions when a conflict is determined. By switching reception of paging channel information to another neighboring cell, the likelihood of page collisions between two subscriptions is reduced. | 04-11-2013 |
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 |
20130303240 | METHODS AND APPARATUSES FOR OPTIMIZATION OF MULTIPLE SUBSCRIPTION DEVICE PERFORMANCE - Methods and apparatus of tune away in wireless communications include receiving a master information block (MIB) from a first subscription network entity on a first subscription in a user equipment (UE). The method further includes determining system information block (SIB) scheduling information associated with the first subscription network entity. Moreover, the method includes tuning away from the first subscription to a second subscription. | 11-14-2013 |
20140022989 | METHOD AND APPARATUS FOR DYNAMICALLY CONFIGURING A CELL UPDATE MESSAGE - The present disclosure presents a method and apparatus for dynamically configuring a cell update message at a user equipment (UE). For example, the method may include determining that a size of the cell update message at the UE is above a threshold value after a “measured results on random access channel (RACH)” information element (IE) is excluded from the cell update message. Furthermore, such an example method may include removing one or more IEs from the cell update message until the size of the cell update message is at or below the threshold value. As such, dynamic configuration of a cell update message at a UE is achieved. | 01-23-2014 |
20140098755 | APPARATUS AND METHOD FOR DEFERRING CELL UPDATE MESSAGES FROM USER EQUIPMENT - Various aspects of the present disclosure enable a plurality of mobile devices (UEs) within a cell to spread out in time their respective transmissions of signaling messages, such as cell update messages, when the network enables or disables enhanced uplink (EUL, sometimes referred to as high-speed uplink packet access or HSUPA) while the UE is in the CELL_FACH state, by changing SIB5 or SIB5bis. In this way, the network load may be reduced, and a network blockage that otherwise might result from large numbers of UEs simultaneously transmitting the cell update message can be avoided. According to one example, a network node may be configured to distribute CELL_UPDATE messages or procedures to UEs when the network node enables or disables EUL in CELL_FACH by changing SIB5 or SIB5bis over time to reduce the network load. According to another example, a UE may be configured for utilizing a random timer or back-off timer to defer cell updates. | 04-10-2014 |
20140135016 | METHOD AND APPARATUS FOR OPTIMIZING THE FREQUENCY OF AUTONOMOUS SEARCH FUNCTIONS FOR DISCOVERING CSG CELLS - Apparatus and methods of maintaining a cell database for wireless communications include discovering a second cell to which a user equipment may reselect. In an aspect, the user equipment may be currently served by a first cell and the second cell is a closed subscriber group cell. Further, aspects include querying a fingerprinting database to determine whether the second cell was previously recorded in the fingerprinting database. Upon determining that the second cell was not previously recorded, further aspects include adding the second cell to the fingerprinting database. Adding the second cell may comprise indicating an association between the first cell and the second cell in the fingerprinting database. | 05-15-2014 |
20140274083 | METHOD AND APPARATUS FOR IMPROVING RE-TRANSMISSION OF RECONFIGURATION MESSAGES - The present disclosure presents an improved method and apparatus for re-transmission of reconfiguration messages. For example, the disclosure presents a method for detecting that a reconfiguration complete message is transmitted from a user equipment (UE) to a network and initiating a reconfiguration re-transmission timer upon the detection. In addition, such an example method, may include determining that the UE has not received a layer two acknowledgement (L2 ACK) message for the transmitted reconfiguration complete message from the network prior to expiration of the reconfiguration re-transmission timer and triggering a cell update message to the network in response to the determination that the UE has not received the L2 ACK message. As such, improved re-transmission of reconfiguration messages may be achieved. | 09-18-2014 |
20140342728 | PERFORMING NEIGHBOR CELL ACTIVITIES IN A MULTI-STACK DEVICE - Systems, methods, and devices providing a framework which reduces the amount of switching required by single transceiver hardware chain mobile devices operating multiple cellular technology and/or service stacks. The various embodiments enable two or more service stacks on the mobile device of various cellular technologies (e.g., 3GPP GSM, UMTS, LTE, WCDMA, etc), to share information, such as network measurements. The various embodiments may also enable one service stack to perform procedures for and provide information to another service stack. | 11-20-2014 |
20140362748 | LOGICAL OPERATING BANDS FOR SCALABLE UMTS - Apparatus and methods are described for selecting or identifying a first band number from one or more additional band numbers mapped to a frequency division duplexing (FDD) band used in universal mobile telecommunications (UMTS). The one or more additional band numbers may be different from a second band number assigned to the FDD band. Each of the one or more additional band numbers may correspond to a different factor N (e.g., N=2, N=4) for use in UMTS scaling. A signal indicative of the first band number may be transmitted to, for example, a network entity, where the signal indicates support of UMTS scaling operations in the FDD band using the factor N corresponding to the first band number. | 12-11-2014 |
20140376393 | APPARATUS AND METHODS FOR DYNAMICALLY REPORTING INTER-SYSTEM MEASUREMENT CAPABILITY IN A WIRELESS COMMUNICATION NETWORK - Aspects of the disclosure provide apparatus and methods of inter-system measurements operable at a user equipment (UE) in a wireless communication network. The UE establishes a connection with a network node in a first wireless communication network utilizing a first radio access technology (RAT), wherein the UE is capable of measuring a plurality of frequency bands of a second RAT greater in number than a measurement capability report limit of the first RAT. The UE further selects a subset of the plurality of frequency bands of the second RAT to be included in a measurement capability information element (IE) based on information provided by the network node and information stored at the UE. The UE further transmits the measurement capability IE to the network node. | 12-25-2014 |