Patent application number | Description | Published |
20120250538 | REDUCING BATTERY POWER CONSUMPTION DURING DISCONTINUOUS RECEPTION AND TRANSMISSION - Techniques, systems and apparatus are described for reducing battery power consumption during a discontinuous reception and transmission mode of operation of a communication device. When operating in the discontinuous reception and transmission mode, a communication device can process radio frequency signals received from base stations to identify a set of active base stations based on a quality of the received radio frequency signals. This can reduce the total number of base stations to decode the corresponding system frame number (SFN). Based on the decoded SFN, the communication device can select a base station to perform hand-off. | 10-04-2012 |
20130072256 | Systems and Methods for Reducing Power Consumption of a Communications Device Using Multiple Elements in a Receiver Chain - Systems and methods according to embodiments of the present invention are provided for increasing the power efficiency of a communications device by allowing it to support dual-SIM functionality while issuing simultaneous wake ups for each SIM. Embodiments of the present invention leverage time sharing solutions to minimize the amount of circuitry needed in a communications device to issue wake ups while avoiding the drawbacks of other time sharing solutions that result in increased overhead due to requiring multiple transitions from an idle state to an active state. | 03-21-2013 |
20130150013 | Intelligent Resource Control in Multiple SIM User Equipment - Systems and methods are presented to support operation of a multiple subscriber identity module (SIM) device. A timing conflict may exist when a scheduled high priority communication of a first SIM overlaps with a scheduled paging monitoring activity for a second SIM. The multiple SIM device may preempt transitioning communication resources to the second SIM when the first SIM executes high priority communications. Or, the multiple SIM device may execute a rescheduling action to resolve the timing conflict. The high priority communication of the first SIM may be rescheduled. Alternatively, normal priority paging monitoring actions may be rescheduled to resolve the timing conflict. | 06-13-2013 |
20130150018 | ENHANCED DISCONTINUOUS MODE OPERATION WITH SHARED RADIO FREQUENCY RESOURCES - A scheduling technique is described for discontinuous transmission and reception. The scheduling technique may be implemented in a mobile communication device with multiple SIMs. The scheduling technique facilitates enhanced communication capability for the mobile communication device. In one implementation, the scheduling technique helps avoid substantial overlap between discontinuous receive cycles of the SIMs, for example by renegotiating a discontinuous transmit/receive offset if too much overlap exists. The renegotiation process may be incorporated into a future industry standard communication protocol (e.g., 3GPP release 11 or later), or may be implemented as an extension to an existing communication protocol. | 06-13-2013 |
20130150095 | ENHANCED MULTIPLE SIM PAGE RECEPTION - A technique for receiving paging information helps a mobile communication device with multiple SIMs to better determine that a call is incoming. Despite the paging indicators for both SIMs arriving in a manner that prevents both the paging indicators from being received, the technique is able to ascertain whether a SIM is being paged, even when the other SIM is currently on the radio interface. As a result, the mobile communication device exhibits an increased ability to detect and alert the user to incoming calls. | 06-13-2013 |
20130150111 | CONCURRENT USE OF SINGLE TX/RX SYNTHESIZER PAIR IN MULTIPLE SIM DEVICES - A technique for tuning the receiver (RX) synthesizer independently from the transmitter (TX) synthesizer helps a mobile communication device with multiple SIMs to concurrently monitor the paging channel of a first network associated with one SIM while transmitting on a second network associated with a second SIM. By independently tuning the RX and the TX synthesizers, each SIM card can maintain synchronization with the network without disruption of service in either network. As a result, the mobile communication device exhibits an increased ability to maintain communication sessions for two different networks, without the need for a second set of TX/RX synthesizer hardware. | 06-13-2013 |
20130316764 | MULTIPLE SIM FREQUENCY CONTROL SYSTEM - A frequency control system enhances user equipment performance. The user equipment may include multiple SIMs, and the frequency control system may facilitate successful background page monitoring for a SIM that is not currently active. In particular, the frequency control system may track environmental factors that influence time base accuracy in the user equipment. When the background page monitoring activity happens for the inactive SIM, the frequency control system may apply a correction to the time base that facilitates successful reception of the paging indicators for the inactive SIM. | 11-28-2013 |
20140073312 | Enhanced Discontinuous Mode Operation with Shared Radio Frequency Resources - A scheduling technique is described for discontinuous transmission and reception. The scheduling technique may be implemented in a mobile communication device with multiple SIMs. The scheduling technique facilitates enhanced communication capability for the mobile communication device. In one implementation, the scheduling technique helps avoid substantial overlap between discontinuous receive cycles of the SIMs, for example by renegotiating a discontinuous transmit/receive offset if too much overlap exists. The renegotiation process may be incorporated into a future industry standard communication protocol (e.g., 3GPP release 11 or later), or may be implemented as an extension to an existing communication protocol. | 03-13-2014 |
20140269354 | INTER-RADIO ACCESS TECHNOLOGY AND/OR INTER-FREQUENCY MEASUREMENT PERFORMANCE ENHANCEMENT - A method of wireless communication includes activating a receive chain for inter-frequency or inter radio access technology (IRAT) measurement during uplink communications. The method may further include measuring at least one neighbor cell with the activated receive chain during uplink communications. | 09-18-2014 |
20150085754 | METHODS AND APPARATUS FOR ENHANCED FREQUENCY MEASUREMENTS - Methods and apparatus for wireless communication comprise receiving a measurement configuration message indicating a Dedicated Channel (DCH) measurement occasion (DMO) gap for inter-radio access technology (IRAT) measurements of a first technology type during operation of the UE according to a second technology type. The methods and apparatus further comprise determining an adjusted DMO gap based on at least one DMO gap adjustment rule, wherein the adjusted DMO gap is shorter in duration than the DMO gap. Moreover, the methods and apparatus comprise performing a frequency measurement for the second technology type during the DMO gap in one or more open time slots made available by the adjusted DMO gap. | 03-26-2015 |