Patent application number | Description | Published |
20100303054 | APPARATUS AND METHOD FOR ADAPTIVE TSP SETTING TO MINIMIZE DUPLICATE PACKET TRANSMISSIONS - An apparatus and method for adaptively setting a Timer_Status_Prohibit (TSP) parameter, the method comprising receiving a category information from a first terminal; determining a threshold value based on the category information and transmitting the threshold value to the first terminal; starting a TSP timer and transmitting at least one data packet to the first terminal once the TSP timer has started; determining when the TSP timer exceeds the threshold value to discontinue transmitting the at least one data packet to the first terminal; receiving a status report from the first terminal; and using the status report, determining whether there is any missing or erroneously received data packet and retransmitting any missing or erroneously received data packet from the at least one data packet to the first terminal. | 12-02-2010 |
20110111765 | SYSTEM AND METHODS FOR TRAFFIC VOLUME REPORTING DURING RADIO ACCESS NETWORK CONNECTION SETUP - Disclosed are systems, methods and computer program products for traffic volume reporting during radio access network (RAN) connection setup. In one aspect, the RAN broadcasts an indicator that it accepts traffic volume measurements (TVM) from access terminals (ATs) and an associated TVM threshold. An AT measures its traffic volume before requesting a connection with the RAN. If the traffic volume is above the threshold, AT transmits to the RAN a connection request containing a TVM indicator that the measured traffic volume from the AT is above the threshold. If the traffic volume is below the threshold, AT transmits to the RAN a connection request containing a TVM indicator that the traffic volume is below the threshold. | 05-12-2011 |
20130028081 | METHOD AND APPARATUS FOR BALANCING LOAD AND REDUCING CALL BLOCKING IN A TD-SCDMA SYSTEM - A method, an apparatus, and a computer program product for wireless communication are provided in connection with providing a process for balancing loads and reducing call blocking in a TD-SCDMA network. In one example, a user equipment (UE) is equipped to obtain a received signal code power (RSCP) value and a load factor value for each of one or more cells. The UE may be further equipped to rank the one or more cells based on a cell selection value derived from both the RSCP value and the load factor value and select a serving cell from the ranked one or more cells. | 01-31-2013 |
20130034080 | METHOD FOR FAST RETURN TO SOURCE RAT (RADIO ACCESS TECHNOLOGY) AFTER REDIRECTION TO TARGET RAT - A method of wireless communication includes receiving redirection information, from a source radio access technology (RAT), to set up a connection in a target RAT. The redirection information includes a fast return indication. A UE returns to the source RAT in accordance with the fast return indication after call release in the target RAT. | 02-07-2013 |
20130176866 | CALL RECOVERY IN TD-SCDMA HANDOVER FAILURE - A method of wireless communication includes measuring and recording a path loss of a first downlink signal from a source base station, prior to attempting handoff from the source base station to a target base station. The path loss of a second downlink signal from the source base station is measured after unsuccessful handoff from the source base station to the target base station. A UE communicates with the source base station, after unsuccessful handoff, using an uplink timing corresponding to an uplink timing recorded prior to attempting handoff when a difference between the path loss of the first downlink signal and the path loss of the second downlink signal fails to meet a threshold value. A new uplink timing is used when the difference meets the threshold value. | 07-11-2013 |
20130201885 | Short Random Access Channel (RACH) Disabling in TDD-LTE - In TDD-LTE wireless systems, an additional fourth preamble for the random access channel, called short RACH, may be used. If short RACH signaling is to be used, the random access preamble is transmitted in the uplink pilot time slot (UpPTS) field in the special subframe. The location of the uplink pilot time slot (UpPTS) is next to a downlink subframe. Therefore, interference from neighbor base stations may interfere with the short RACH preamble within the uplink pilot time slot. The interference to the short RACH will prevent the eNodeB from detecting the short RACH preamble and thus prevent the UE from accessing the network. An interference level on an Uplink Pilot Time Slot (UpPTS) may be measured and when the interference level exceeds a threshold value a User Equipment (UE) is instructed to disable short Random Access Channel (RACH) signaling. The UE may then be instructed to enable normal RACH. When the interference level falls below the threshold value the UE is instructed to resume short RACH signaling | 08-08-2013 |
20130223239 | IRAT MEASUREMENT METHOD WHEN IN TD-SCDMA CONNECTED MODE - When a user equipment (UE) is operating in connected mode in a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network all time slots may be allocated to communications, leaving insufficient time for the UE to perform measurement of neighboring radio access technologies (RATs). When the UE moves out of TD-SCDMA coverage, it may report to the base station and receive an instruction to switch into time division multiplexing (TDM) mode and to perform inter-RAT measurement while in TDM mode. | 08-29-2013 |
20130223354 | HS-SCCH AND HS-SICH ALLOCATION AND MONITORING IN TD-SCDMA MULTI-CARRIER SYSTEMS - In multi-carrier wireless communications control channels are coordinated onto a single reference frequency for scheduling communications with mobile devices. Mobile devices may monitor all available control channels on a single reference frequency rather than over multiple frequencies, thereby reducing CPU processing and power consumption. | 08-29-2013 |
20130223428 | METHOD AND APPARATUS FOR IRAT MEASUREMENT WHEN IN TD-SCDMA CONNECTED MODE - When a user equipment (UE) is operating in connected mode in a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network all time slots may be allocated to communications, leaving insufficient time for the UE to perform measurement of neighboring radio access technologies (RATs). The UE may select one out of every N number of transmit time intervals (TTIs) to halt regular communication and reserve that TTI for purposes of inter-RAT measurement. | 08-29-2013 |
20130329575 | CHANNEL QUALITY REPORTING - In certain communication systems, such as TD-HSDPA communications, channel quality index (CQI) reporting is based on a predetermined configuration, such as a mobile device (UE) reporting a CQI for a most recently received data transmission. This configuration may lead to errors if a UE reports a CQI for a certain data transmission but the base station (node B) believes the CQI corresponds to a different data transmission, such as a later transmission the UE never received due to an error processing control channel information. Offered is an indicator to accompany CQI reports. The indicator indicates to the node B which communication resource corresponds to the CQI report. | 12-12-2013 |
20130336293 | SCHEDULING INFORMATION REPORTING IN TD-HSUPA SYSTEMS - A method to improve the sending of scheduling information, particularly for Time Division-High-Speed Uplink Packet Access (TD-HSUPA) operation is described. When T-WAIT is configured at a large value which is above a threshold, and when the UE transitions from having a grant to not having a grant, and the TEBS is larger than zero, if the UE does not receive a grant within a time window, the UE may send scheduling information via the E-RUCCH without waiting for the T-WAIT timer to expire. | 12-19-2013 |
20140056155 | INTER RAT MEASUREMENT FROM IDLE TO CONNECTED STATE - A user equipment (UE) may perform an advanced inter radio access technology (IRAT) measurement of a target cell when the UE transitions from an idle state to a connected state of a serving cell to reduce delay. In such instances, the UE compares the serving cell signal metric to a threshold. The advanced measurement may be performed when the serving cell signal metric, e.g., serving cell received signal code power (RSCP), is below the threshold. | 02-27-2014 |
20140056217 | INTELLIGENT INTER RADIO ACCESS TECHNOLOGY MEASUREMENT REPORTING - A user equipment (UE) may scale down a signal strength of a radio access technology (RAT) cell in a report to a serving cell to avoid multiple connection attempts to the same radio access technology cell. The UE may initiate a predefined timer, called a target cell timer, on which the scaling down of the reported signal strength of the particular RAT cell is based. The timer is initiated when the UE returns back to the serving cell after failure to access a top ranked RAT neighbor cell. | 02-27-2014 |
20140071938 | CONFIRMATION OF BASE STATION IDENTIFICATION TO IMPROVE HANDOVER - A method of wireless communication is presented. The method includes receiving an operating frequency and base station identification code (BSIC) for a neighboring base station, determining an expected received signal based from the operating frequency and BSIC, comparing a received signal with the expected received signal, and reporting a result of the comparing. | 03-13-2014 |
20140071939 | INTRA FREQUENCY CELL RESELECTION IN TD-SCDMA - A user equipment (UE) may reduce reselection delays when the UE is in the idle mode. In such instances, the UE adaptively adjusts a cell reselection timer based at least in part on the availability of a downlink time slot resource. The adjustment of the cell reselection timer may be based at least in part on the availability of the downlink time slot resources. The cell reselection timer is adjusted (e.g., shortened or scaled down) when the downlink time slot resources are unavailable to the UE. | 03-13-2014 |
20140080474 | BASE STATION IDENTITY CONFIRM AND RECONFIRM PROCEDURE - A user equipment (UE) may skip performance of base station identity code (BSIC) confirm and reconfirm procedure for a neighbor cell to conserve UE battery power. In such instances, the UE compares a serving cell signal metric to a dynamic threshold. The BSIC confirm and reconfirm procedure for the neighbor cell may be skipped when the serving cell signal metric is above the dynamic threshold. | 03-20-2014 |
20140086076 | IDLE TIME SLOT ALLOCATION FOR IRAT MEASUREMENT IN TD-HSDPA - A user equipment (UE) dynamically adjusts a decoding time to accommodate a delay associated with decoding a high-speed shared control channel (HS-SCCH) to avoid wasting idle time slots that would otherwise be deemed busy time slots. The UE determines a dynamic protection line that extends beyond a last time slot of a subframe. The dynamic protection line is calculated based on an amount of time to complete the processing and decoding of a control information. This dynamic protection line provides a dynamically determined delay for decoding the HS-SCCH. | 03-27-2014 |
20140120959 | ADJUST PAGING INDICATOR CHANNEL DETECTION THRESHOLD DEPENDING ON REMAINING BATTERY LEVEL - A user equipment may save power and improve performance by adjusting a paging indicator detection threshold of power at which a user equipment (UE) determines a paging indicator channel transmission is received when detecting a signal on a paging indicator channel. The adjustment may be based on the UE's remaining battery power. When the battery power level is low, the threshold is increased to reduce false detections. When the battery power level is high, the threshold is decreased to increase the likelihood of detecting the signal on a paging indicator channel. | 05-01-2014 |
20140140223 | INTER RADIO ACCESS TECHNOLOGY (IRAT) MEASUREMENT - A user equipment (UE) may perform an inter radio access technology (IRAT) measurement in time slots not deemed to be carrying critical data. In such instances, the UE only transmits and decodes critical data in the critical time slots when a serving cell signal is low for a determined period of time. Otherwise, when the time slots do not carry critical data, i.e., non-critical time slots, the UE stops transmitting and decoding and uses the non-critical time slots for IRAT measurement. | 05-22-2014 |
20140140226 | IRAT MEASUREMENT REPORTING METHOD IN TD-SCDMA - A user equipment (UE) considers both the signal strength in time slot zero and the signal quality of the downlink traffic time slots when determining whether to send an IRAT measurement report to trigger IRAT handover to GSM. | 05-22-2014 |
20140141780 | FREQUENCY LIST UPDATING FOR FAST RETURN TO WIRELESS NETWORK - A method of wireless communication receives a frequency list for fast return when in idle mode in a first radio access technology (RAT). The method updates the frequency list for fast return to the first RAT while in connected mode in the first RAT. The update is based on inter and intra frequency measurement control messages from each serving base station during mobility. | 05-22-2014 |
20140146796 | BUFFER SIZE REPORTING IN TIME DIVISION HIGH SPEED UPLINK PACKET ACCESS (TD-HSUPA) SYSTEMS - A method of wireless communication reports buffer size in TD-HSUPA networks. A protocol data unit is transmitted and an artificial buffer size is reported in response to the transmitted PDU. The artificial buffer size corresponds to the size of a scheduling request. The actual buffer size is reported when a NACK is received or when a round trip timer expires. The actual buffer size corresponds to a PDU retransmit size. | 05-29-2014 |
20140148148 | INTER RADIO ACCESS TECHNOLOGY (IRAT) MEASUREMENT TO IMPROVE USER EQUIPMENT (UE) BATTERY PERFORMANCE - A method of wireless communication enables an inter-radio access technology (IRAT) neighbor cell measurement when a serving RAT signal strength is continuously below a first threshold value for a first length of time. The method also disables the IRAT neighbor cell measurement when the serving RAT signal strength is continuously above a second threshold value for a second length of time. | 05-29-2014 |
20140148164 | ADAPTIVE FREQUENCY LIST FOR PSEUDO-FAST RETURN IN A COMMUNICATION SYSTEM - A user equipment (UE) is configured to maintain an updated frequency list for pseudo-fast return handover. The UE receives a frequency list for pseudo fast return when the UE is in an idle mode in a first radio access technology (RAT). When the UE is in a connected mode in a second RAT, the list is updated based on actual UE inter- and intra-frequency measurements of the first RAT during mobility. | 05-29-2014 |
20140192661 | SCHEDULE RATE OF SYNCHRONIZATION CHANNEL (SCH) BASE STATION IDENTITY CODE (BSIC) - The scheduling rate of the synchronization channel (SCH) base station identity code (BSIC) is adapted based on target cell signal metric such as, the signal quality and/or signal strength. The scheduling rate is decreased when the target cell metric is below a first threshold value and is increased when the target cell metric is above a second threshold value. The scheduling rate may also be adapted based on a serving cell signal metric. | 07-10-2014 |
20140213245 | PARALLEL INTER-RADIO ACCESS TECHNOLOGY (IRAT) MEASUREMENT IN A COMMUNICATION SYSTEM - A UE is configured to collect multiple absolute radio frequency channel numbers (ARFCNs) in parallel via a wideband receiver during a transmission gap. Inter-radio access technology (IRAT) measurements are performed based on the collected AFRCN samples. | 07-31-2014 |
20140213254 | ADAPTIVE TIMING FOR TRIGGERING GSM TO TD-SCDMA CELL RESELECTION - A method of wireless communications includes determining a period of time to trigger inter-radio access technology (IRAT) cell reselection. The method also includes adjusting the period of time accordingly, in which the adjusting is based on a target cell signal strength, the target cell belonging to a different RAT than a source cell. The period of time may also be determined based on the source cell signal strength and/or target cell signal strength, and adjusted accordingly. | 07-31-2014 |
20140241143 | EARLY TERMINATION OF A BASE STATION IDENTITY CODE PROCEDURE IN TD-SDCMA - An early BSIC (base station identity code) abort procedure includes comparing a first signal strength of a serving cell with a first threshold and comparing a second signal strength of a target cell to a second threshold. The first threshold is a sum of a network indicated threshold and a user equipment (UE) threshold. The second threshold is a difference between the network indicated threshold and the UE threshold. When the first signal strength is below the first threshold and the second signal strength is above the second threshold, the base station identity code (BSIC) procedure is initiated. A number of BSIC failure attempts is adaptively set before terminating the BSIC procedure. | 08-28-2014 |
20140241327 | ADJUSTING INITIAL TRANSMIT POWER FOR HIGH SPEED DATA TRANSMISSION - A method of wireless communication adjusts the transmit power for high speed data communications. A UE determines whether a random access channel is configured on an uplink traffic time slot. When the random access channel is configured on the uplink traffic time slot, the UE transmits a high speed data channel with adjusted transmit (TX) power based at least in part on transmit power used for a scheduling request. | 08-28-2014 |
20140242982 | MEASUREMENT REPORTING TO AVOID STRONG INTERFERENCE - A measurement reporting method to avoid strong interference includes measuring all cells on a neighbor frequency indicated by a network on a neighbor list. A first and second set of cells are identified. The identified first set of cells are from the neighbor list and have a first signal strength a first predefined amount above a serving cell signal strength. The second set of cells are not on the neighbor list and have a second signal strength above a first threshold signal value. The first signal strength of the first set of cells and the second signal strength of the second set of cells are compared to determine whether to send a measurement report for the first set of cells. | 08-28-2014 |
20140242988 | UPDATING A BASE REFERENCE POWER FOR HIGH SPEED DATA RESUMPTION - A method of wireless communication includes returning to a base station after a handover failure. The method also includes measuring a length of time between receiving a handover command and returning to the base station. The method further includes setting a physical uplink channel transmit power based on the measured length of time. The physical uplink channel can be an enhanced physical uplink channel (E-PUCH) of a high speed uplink packet access (HSUPA)wireless network. | 08-28-2014 |
20140247732 | ABSOLUTE GRANT CHANNEL FOR IRAT MEASUREMENT IN A HIGH SPEED DATA NETWORK - A method for handling grants includes communicating with a first radio access technology (RAT). An uplink grant that corresponds to at least one uplink timeslot overlapping with a measurement signal from a second RAT is discarded. The discarding of the uplink grant is based at least in part on a signal quality of the first RAT. Measurement of the second RAT during the at least one uplink timeslot is performed. | 09-04-2014 |
20140247733 | BUFFER SIZE REPORTING FOR IRAT MEASUREMENTS IN HIGH SPEED DATA NETWORKS - An intelligent buffer size reporting process includes determining whether a signal strength of a first radio access technology (RAT) is below a first threshold value. A false buffer size of zero is reported when the signal strength of the first RAT is below the first threshold value for a period of time. A signal strength of a second RAT is measured using uplink timeslots resulting from the reported false buffer size of zero. | 09-04-2014 |
20140248876 | GSM BASE STATION IDENTITY CODE (BSIC) METHOD FOR IRAT CELL RESELECTION TO CONSERVE UE BATTERY POWER - A measurement reporting method reduces battery waste. A UE receives a list of GSM neighbor cells and measures the signal strength of each of the GSM cells in the list. The UE performs base station identity code (BSIC) confirm/reconfirm procedures only for the cells having a signal strength above a threshold. | 09-04-2014 |
20140254399 | MEASUREMENT REPORTING IN A WIRELESS NETWORK - A measurement reporting method includes measuring a first signal from a first neighbor base station until a first timer expires. Also measured is a second signal from a second neighbor base station until a second timer expires. The first signal is compared with the second signal. A measurement report of the first signal is delayed when the second signal is better than the first signal and the first timer expires prior to the second timer. | 09-11-2014 |
20140254442 | GSM TONE DETECTION - A method for tone detection includes wireless communicating on a first radio access technology (RAT). A determination is made of whether a gap generated by at least one idle timeslot in the first RAT communications is sufficient to perform tone detection but not sufficient to perform base station identity code (BSIC) verification of a second RAT. The halting of the performance of tone detection of the second RAT is made when the gap is not sufficient to perform BSIC verification. | 09-11-2014 |
20140254547 | UPLINK BUFFER STATUS REPORTING FOR MULTIPLE PRESERVED PDP CONTEXTS - A method of buffer status reporting for multiple preserved data protocol (PDP) contexts includes communicating with a base station. A service request is sent to the base station, the service request requesting a set of radio access bearers (RABs) for a set of PDP contexts. The set of preserved PDP contexts includes one or more PDP contexts that have no uplink data ready to transmit on a high speed shared data channel. The set of preserved PDP contexts also includes one or more PDP contexts that have uplink data ready to transmit on the high speed shared data channel. | 09-11-2014 |
20140269353 | INTER-RADIO ACCESS TECHNOLOGY (IRAT) MEASUREMENT SCHEDULING - A method of wireless communication includes determining whether a serving cell signal strength is below a first threshold. The method also includes determining whether an inter/intra frequency neighbor cell signal strength is below a second threshold. The method further includes determining whether a number of idle traffic time slots for inter-radio access technology IRAT measurements is less than a third threshold. Finally, a frequency of IRAT measurements in time slot zero (TS0), a downlink pilot time slot (DwPTS), an uplink pilot time slot (UpPTS), and a gap (GP) is increased. The increase is based on the determined serving cell signal strength, the determined inter/intra frequency neighbor cell signal strength, and the determined number of idle traffic time slots. | 09-18-2014 |
20140269629 | RETRANSMISSION TIMER IN A HIGH SPEED DATA NETWORK - A system and method include adjusting a retransmission timer in a high speed network. The hybrid automatic repeat request (HARQ) retransmission timer is adjusted to a minimum of: a network signaled value for the HARQ retransmission timer, a network signaled value for a radio link control (RLC) retransmission timer, and a user equipment (UE) measured time of when feedback is received from a network in response to a retransmission. | 09-18-2014 |
20140369312 | ADAPTIVE TRANSMIT POWER CONTROL (TPC) STEP SIZE IN A HIGH SPEED DATA NETWORK - A method of wireless communication includes returning to a base station after a handover failure. The method also includes receiving consecutive transmit power control (TPC) UP commands within a first predetermined time period. The method further includes receiving enhanced uplink dedicated channel uplink control channel (E-UCCH) instances within a second predetermined period. The method further includes increasing a TPC step size after receiving a first predetermined number of consecutive TPC UP commands during the first predetermined time period and after receiving a second predetermined number of E-UCCH instances during the second predetermined time period. | 12-18-2014 |
20150049617 | FCCH BURST DETECTION ABORT METHOD FOR INTER-RADIO ACCESS TECHNOLOGY (IRAT) MEASUREMENT - A system acquisition is initiated to perform inter radio access technology (IRAT) measurement. A waiting period of time is provided before aborting the system acquisition. The period of time is adjustable based on at least one metric. The metric can be a frequency of available measurement gaps, a total number of available measurement gaps, and/or a length of each measurement gap within a subframe. The metric could also be an absolute signal strength of a single neighbor cell and/or a relative signal strength between neighbor cells. The metric could also be a user equipment (UE) measured signal strength compared to a network indicated threshold value for triggering an IRAT measurement report. The metric could also be a percentage of a tone that falls within a measurement gap. | 02-19-2015 |
20150049737 | MEASUREMENT REPORTING WHEN COMMUNICATING WITH WEAK SERVING CELL - A process includes transmitting a measurement report for inter/intra frequency handover when certain conditions are met. The first condition occurs when a serving cell signal strength of a serving cell in a first radio access technology (RAT) is below a first absolute threshold. The second condition occurs when a neighbor cell signal strength of a neighbor cell also in the first RAT is above the serving cell signal strength by a predetermined first amount. The third condition occurs when the neighbor cell signal strength is above a second absolute threshold. | 02-19-2015 |
20150063315 | SUB-CHANNEL SELECTION TO REDUCE LATENCY OF CIRCUIT-SWITCHED FALLBACK - It is determined whether a specific call type occurs. A random access preamble is transmitted at an earliest available sub-channel when the specific call type occurs. The random access preamble is transmitted at an assigned sub-channel when the specific call type does not occur. The call type can be a circuit switched fall back (CSFB) call or an emergency call. | 03-05-2015 |
20150065138 | FREQUENCY HANDOVER WITH INTER-FREQUENCY INTERFERENCE MEASUREMENT - A method of wireless communication includes measuring interference to a primary frequency of a neighbor cell and measuring interference to at least one secondary frequency of the neighbor cell. The method also includes transmitting at least one measurement report based on the interference measurements of the primary frequency and the secondary frequency(ies). | 03-05-2015 |
20150071257 | RADIO RESOURCE REQUEST FOR IRAT MEASUREMENT IN TD-HSUPA/TD-HSDPA - A user equipment (UE) may achieve fast inter radio access technology (IRAT) measurement and better IRAT handover performance to effectively avoid call drops via smooth IRAT handover to other RATs during Time Division High Speed Downlink/Uplink Packet Access (TD-HSDPA/TD-HSUPA) data transmission. In some instances, the UE may speed up the IRAT measurement by request a resource allocation grant preference from a base station. The request indicates a reduced number of time resources and an increased number of other resources. | 03-12-2015 |
20150071263 | CHANNEL QUALITY INDEX (CQI) REPORTING IN WIRELESS NETWORK - A method of wireless communication in a wireless network includes transmitting synchronization shift (SS) bits with a channel quality index (CQI) report. The method also includes indicating, via the synchronization shift bits, one or more preferred time slots for receiving a high speed data transmission. | 03-12-2015 |
20150078294 | SCHEDULING REQUEST IN WIRELESS COMMUNICATION SYSTEM - A method of wireless communication includes transmitting an abbreviated scheduling request indicating a general size of a first grant when a UE has buffered data. A detailed schedule request is transmitted and indicates a specific size of a second grant after receiving the first grant. The second grant is adjusted based on the detailed scheduling request. | 03-19-2015 |
20150078347 | STORAGE OF BASE STATION IDENTITY CODE (BSIC) TIMING - A method and apparatus for wireless communication stores synchronization channel (SCH) timing for each identified Global System for Mobile Communications (GSM) cell. The stored SCH timing is used to perform base station identity code (BSIC) reconfirmation for an identified GSM cell without frequency correction channel (FCCH) tone detection and initial BSIC confirmation. The stored SCH timing is maintained across a plurality of user equipment (UE) states. | 03-19-2015 |
20150079987 | TONE DETECTION SCHEDULING - A user equipment (UE) uses idle time slots for system acquisition for IRAT measurement. To speed up the IRAT measurement, the UE starts system acquisition for a for first Global System for Mobile Communications (GSM) cell. The UE suspends the system acquisition of the first GSM cell when the first GSM cell signal strength falls below a signal strength of another GSM cell in a neighbor list. The UE then stores information acquired during the system acquisition of the first GSM cell, prior to the suspension. The UE starts a system acquisition for a second GSM cell after the suspension. The UE then resumes the system acquisition of the first GSM cell using the stored information after the second cell is acquired or the acquisition process aborts. | 03-19-2015 |
20150087295 | SERVING CELL AND NEIGHBOR CELL PATH LOSS RELATIVE LEVEL REPORTING - A method of wireless communication includes receiving, from an user equipment (UE), a report of relative neighbor cell path loss levels and corresponding neighbor cell indexes for intra-frequency neighbor cells. The method also includes receiving, from a radio network controller (RNC), uplink loading conditions for the intra-frequency neighbor cells. The method further includes allocating a power grant based on the relative neighbor cell path loss levels and the uplink loading conditions. | 03-26-2015 |
20150099523 | INTER-RADIO ACCESS TECHNOLOGY (IRAT) MEASUREMENT DURING HANDOVER - A different inter radio access technology (IRAT) measurement schedule is provided in the execution phase relative to the IRAT measurement schedule implemented in the preparation phase. To improve the handover performance, the user equipment transmits an IRAT measurement report for multiple neighbor cells and prioritizes the IRAT measurement scheduling for neighbor cells triggering the IRAT measurement report. The prioritizing occurs until an IRAT handover command is received. | 04-09-2015 |
20150110068 | SERVING CELL AND NEIGHBOR CELL PATH LOSS RATIO REPORTING - A method of wireless communication includes receiving a list of neighbor cells and determining whether each of the neighbor cells in the list of neighbor cells has a path loss below a threshold value. The method also includes calculating a serving neighbor path loss (SNPL) based on a serving cell and only the neighbor cells having path loss below the threshold value. | 04-23-2015 |
20150110076 | REDUCING LATENCY DURING REDIRECTION - In a method of wireless communication, a UE is redirected to a first RAT due to circuit switch fallback via a connection release from the second RAT. The UE is redirected based on redirection information that includes a dedicated preamble and a time period for the UE to perform a random access procedure in the first RAT. In one instance, the UE performs the random access procedure with the dedicated preamble during the time period. In addition, the UE performs the random access procedure with a non-dedicated preamble when no response is received to the dedicated preamble when the time period expires. | 04-23-2015 |
20150117231 | INTER FREQUENCY MEASUREMENT SCHEDULING IN DISCONTINUOUS RECEPTION (DRX) MODE - A user equipment (UE) avoids or reduces delay associated with measuring preferred neighbor cells by scheduling inter frequency measurements based on network indicated offset values provided by a network. In some instances, the UE performs measurements when the UE wakes up from a sleep mode. The UE schedules measurement of a neighbor cell with a lower offset value more frequently or earlier. The offset value can be a Qoffset value. | 04-30-2015 |
20150117307 | ADJUSTING PHYSICAL RANDOM ACCESS CHANNEL (PRACH) TRANSMISSION POWER - A method of wireless communication includes modifying an initial transmit power for a subsequent uplink physical channel based on the difference between the desired received powers of the subsequent uplink physical channel and a random access physical channel. When the difference between the desired power of the subsequent uplink physical channel and the random access physical channel is above a predefined threshold, the modification is based on a first adjusted factor. When the subsequent uplink physical channel and random access physical channel are on different frequencies (or time slots) the modification is based on a second adjusted factor. | 04-30-2015 |
20150117319 | SCHEDULING REQUEST WITHOUT RANDOM ACCESS PROCEDURE - A method of wireless communication includes transmitting a scheduling request through a common channel without performing a random access procedure, when uplink data remains in a buffer and no active grant exists during a call. The method also includes receiving a grant and initiating data transmission through an enhanced channel. | 04-30-2015 |
20150117398 | REDUCED LATENCY DURING CELLULAR REDIRECTION - A user equipment (UE) may achieve faster cellular redirection, which reduces latency of the redirection, and improves throughput and user perception during redirection. In some instances, the UE may speed up the redirection by determining whether a connection release message with redirection information indicating a target radio access technology (RAT), a target cell and/or a target frequency has been received. The UE modifies a connection release complete procedure when the redirection information is received. | 04-30-2015 |
20150117399 | BATON HANDOVER WITH RECEIVE DIVERSITY IN TD-SCDMA - In baton handover in TD-SCDMA communications, a user equipment (UE) may make use of multiple receivers in a receive diversity configuration to reduce call drops during baton handover. Following uplink handover, the UE may tune a first receiver to a target cell while maintaining a second receiver tuned to the source cell. If the UE measures a signal quality of the target cell greater than a signal quality of the source cell the UE tunes the second receiver to the target cell and complete the handover. If the UE measures a signal quality of the source cell greater than a signal quality of the target cell, the UE may switch the first receiver and UL back to the source cell and terminate the handover. Thus the UE may avoid handover to a target cell with poor signal quality. | 04-30-2015 |
20150119036 | CELLULAR HANDOVER EXECUTION AFTER FIRST NON-BLIND HANDOVER FAILURE - A user equipment (UE) may adjust a time permitted for a UE to attempt blind handover after a first non-blind handover failure to efficiently establish connection with a second radio access technology (RAT) or re-establish connection with a first RAT to increase handover success rate. In some instances, the UE may dynamically adjust the time permitted for acquiring a target RAT cell based on a signal strength of a target cell of the target RAT and/or a signal strength of a serving cell of a serving RAT, after a synchronized handover failed. | 04-30-2015 |
20150146551 | INTER RADIO ACCESS TECHNOLOGY (IRAT) MEASUREMENT USING IDLE INTERVAL AND DEDICATED CHANNEL MEASUREMENT OCCASION - A method of wireless communication increases the gap length for performing IRAT measurements. When a radio bearer transmission time interval (TTI) length is greater than an initial gap length, the gap length is increased to provide additional time for performing IRAT measurement. | 05-28-2015 |
20150146684 | UPLINK TRANSMISSION POWER AND TIMING ADJUSTMENT IN TD-SCDMA BATON HANDOVER - A user equipment (UE) may adjust its uplink transmission power and timing for communications with a target cell while awaiting completion of a baton handover procedure. The amount of adjustments for the uplink transmission power/timing may be based on an amount of time remaining before baton handover failure is declared. The steps size of the adjustments may increase as the time remaining before handover failure becomes smaller. | 05-28-2015 |
20150148039 | WIRELESS COMMUNICATION OPTIMIZED MULTIPLE FREQUENCY MEASUREMENT SCHEDULE - An optimized strategy for preparing measurement reports in a telecommunication system separates searching and measuring of candidate frequencies for device handover, searching a series of frequencies and then determining which frequencies to measure based on the search results. The search results may be sorted, prioritizing the order measurements are undertaken. Preliminary results may be used to determine that a frequency is a poor handover candidate, advancing to the next frequency. | 05-28-2015 |
20150148043 | MANAGING SYSTEM FRAME NUMBERS (SFNs) FOR CIRCUIT-SWITCHED FALLBACK (CSFB) - A method of wireless communication includes recording an absolute system frame number (SFN) of a target radio access technology (RAT) and/or recording a relative system frame number (SFN) difference between a serving radio access technology (RAT) and the target RAT. A transmission time interval (TTI) boundary, is determined after redirection, based at least in part on the recorded absolute frame number (SFN) and/or the recorded relative system frame number (SFN) difference. | 05-28-2015 |
20150180613 | DISCARDING OF HYBRID AUTOMATIC REPEAT REQUEST (HARQ) PROCESSES - A method of wireless communication includes receiving an uplink grant for one or more pending HARQ processes waiting to perform a retransmission. The method also includes selecting each pending HARQ process that has not received a NACK. The method further includes terminating an oldest selected HARQ process when the uplink grant is insufficient to perform the retransmission for the plurality of pending HARQ processes. | 06-25-2015 |
20150180615 | POWER GRANT USE FOR HARQ RETRANSMISSION - A method of wireless communication includes determining when all HARQ processes are associated with packages for retransmission. The method also includes determining when no new packages are pending in a UE buffer and when a received grant is insufficient for retransmission of any of the HARQ processes. The method further includes determining possible block sizes supported by each allocated time slot identified in the received grant. The method still further includes retransmitting the package of a selected HARQ process with maximum available power. | 06-25-2015 |
20150181476 | BATON HANDOVER TRANSITION FOR SINGLE RECEIVER USER EQUIPMENT - In baton handover in TD-SCDMA communications, a user equipment (UE) may use of a single receiver to reduce call drops during baton handover. Following uplink handover, the UE may simultaneously receive downlink communication from a target cell and a source cell when a condition is satisfied. If the UE measures a signal quality of the downlink communication of the target cell greater than a signal quality of the downlink communication of the source cell, the UE switches to the target cell and completes the handover. If the UE measures a signal quality of the downlink communication of the source cell greater than a signal quality of the downlink communication of the target cell, the UE returns the uplink to the source cell and terminates the handover. Thus the UE may avoid handover to a target cell with poor signal quality. | 06-25-2015 |
20150181478 | INTER RADIO ACCESS TECHNOLOGY HANDOVER - A user equipment (UE) combines baton and hard handover procedures to reduce handover latency, and improve throughput. In one instance, the UE receives a handover command and in response, substantially simultaneously initiates both a hard handover procedure and a baton handover procedure. When a hard handover response is received before a baton handover response, the UE continues with the hard handover procedure and then aborts the baton handover procedure. When the baton handover response is received before a hard handover response, the UE continues with the baton handover procedure and then aborts the hard handover procedure. | 06-25-2015 |
20150181618 | EARLY ABORT OF SCHEDULING INFORMATION (SI) RETRANSMISSION - A user equipment may improve throughput between the user equipment and a nodeB by reducing a delay associated with transmitting new scheduling information. In some instances, when scheduling information changes during or prior to the retransmission of the previous scheduling information, the user equipment aborts a retransmission of the previous scheduling information and initiates a new scheduling information transmission using a scheduling grant received at the time of aborting or after the time of aborting. | 06-25-2015 |
20150201390 | ADAPTIVE UPLINK TIMING ADJUSTMENTS - An apparatus and method adaptively vary how often to adjust uplink timing in a wireless network. The frequency for adjusting uplink timing is varied based on a measured path loss and/or downlink timing variation. | 07-16-2015 |
20150201448 | UPLINK PILOT CHANNEL POSITIONING FOR CIRCUIT SWITCHED FALLBACK - A method of wireless communication manages the positioning of uplink pilot channel transmissions. A random access request is transmitted at a first location indicated in a circuit switched fall back (CSFB) redirection message. The random access request is then retransmitted at a second location when a response is not received for the random access request transmitted at the first location. | 07-16-2015 |
20150230135 | INTER RADIO ACCESS TECHNOLOGY CELLULAR HANDOVER - A user equipment (UE) sends random access request and scheduling requests for channels, such as a physical random access channel (PRACH) and a random access uplink control channel (E-RUCCH), in parallel rather than serially to improve data transmission latency. In one instance, the UE transmits a first preamble for a random access procedure and a second preamble for a scheduling request in response to receiving a hard-handover command. The UE receives a first acknowledgment response to one of the preambles. The UE determines when to transmit the scheduling request based at least in part on which preamble is acknowledged. | 08-13-2015 |
20150230194 | UPLINK TIMING ADJUSTMENT FOR WIRELESS COMMUNICATION - A user equipment (UE) applies an uplink timing adjustment during a high speed data call to allow uplink transmission of different UEs to arrive at a base station at a particular estimated time. In one instance, the UE determines whether a downlink (DL) timing varies more than a predetermined amount within a specified time period. The UE applies a timing advance command received in response to a scheduling request when the timing varies more than the predetermined amount. The UE also ignores a current uplink timing based on a closed loop timing advance command | 08-13-2015 |
20150245252 | HIGH SPEED INTER-RADIO ACCESS TECHNOLOGY HANDOVER - A user equipment (UE) performs hard handover rather than baton handover when a handover command includes a scheduling request configuration and includes no random access configuration. When the UE receives a handover command including a scheduling request configuration, and no random access configuration, the UE determines the random access configuration for the hard handover based on the scheduling request configuration. | 08-27-2015 |
20150249940 | METHOD AND APPARATUS FOR PERFORMING CALL RECOVERY AFTER CALL DROP - Aspects of the methods and apparatus relate to performing call recovery after a call drop. A cell selection update procedure may be initiated to recover a call in response to the call being dropped with a serving cell. Link conditions may be determined for the serving cell and for different candidate cells. The aspects of the methods and apparatus also include selecting a cell, based on the link conditions, from among the serving cell and a candidate cell with a highest signal power parameter in a Primary Common Control Physical Channel (PCCPCH) across a set of neighboring frequencies of the different candidate cells. Call recovery may be performed using the selected cell. In some aspects, the highest signal power parameter may be a highest Received Signal Code Power (RSCP). | 09-03-2015 |
20150256297 | DISCARDING HYBRID AUTOMATIC REPEAT REQUEST (HARQ) PROCESSES - A method of wireless communication is presented. The method includes receiving a grant insufficient for all hybrid automatic repeat request (HARQ) processes waiting for retransmission. The grant may be received after a measurement gap. The method also includes discarding one or more HARQ processes having a timing of previous ACK/NACK feedback coinciding with the measurement gap. | 09-10-2015 |
20150257056 | PARALLEL RANK BASED AND PRIORITY BASED CELL RESELECTION - A user equipment (UE) reselects to a higher priority cell even when a cell reselection timer of a low priority cell and/or rank based cell expires before a cell reselection timer of the higher priority cell. In one instance, the UE determines an expiration of a first cell reselection timer for the low priority cell and/or an expiration of a second cell reselection timer for the rank based cell while a third cell reselection timer is running, but not expired. The third cell reselection timer corresponds to the high priority based cell. The UE delays performing cell reselection to the low priority or rank based cell until the high priority based cell is evaluated, even when a cell reselection condition has been stratified for the low priority or rank based cell. | 09-10-2015 |
20150264603 | METHODS AND APPARATUS FOR HANDLING TIME-TO-TRIGGER DURING INTRA-RAT CELL RESELECTION AND HANDOVER - In an aspect of the disclosure, a method of wireless communication is provided. The method may include starting a first timer for changing to a first network cell with a first radio access technology (RAT) and starting a second timer for changing to a second network cell with a second RAT. Further, the method may include changing to the first network cell when the first timer expires. The method may also include determining that the second network cell satisfies a cell change condition and continuing to run the second timer after the change to the first network cell in response to the second network cell satisfying the cell change condition. The method may further include changing to the second network cell after starting a third timer for a third network cell with the first RAT, a duration of the second timer being longer than a duration of the third timer. | 09-17-2015 |
20150271723 | UPLINK TIMING ADVANCE ADJUSTMENT - A user equipment (UE) determines an uplink timing advance of a target NodeB, such as an uplink dedicated physical channel (DPCH) transmit timing, during handover transition when the UE receives a handover command without a random access configuration. In one instance, the UE modifies a current timing advance of a source eNodeB based on a difference between an uplink timing of the source eNodeB and a downlink timing of the source eNodeB and a difference between an uplink timing of the target NodeB and a downlink timing of the target NodeB. In another instance, the UE determines the uplink timing advance of the target NodeB based on the modified current uplink timing advance of the source eNodeB. | 09-24-2015 |
20150280880 | MANAGING HYBRID AUTOMATIC REPEAT REQUEST (HARQ) BUFFER - In a system and method for wireless communication, a user equipment (UE) is configured to determine whether it failed to detect and decode a data transmission while the UE tuned away from a first RAT to a second RAT based on a grant sequence number. The HARQ buffer is flushed when the UE determines it missed a grant and the duration of the tune away gap meets a particular criteria. | 10-01-2015 |
20150281989 | DELAYING TRANSMISSION OF MEASUREMENT REPORT - A user equipment (UE) transmits measurement reports, and postpones the transmission of a measurement report when a neighbor cell signal strength is greater than the signal strength of the target cell(s). In one instance, the UE identifies a target cell having the strongest signal strength. In another instance, the UE postpones a transmission of a measurement report for a target cell when a neighbor cell signal strength is greater than the strongest target cell signal strength and the strongest target cell signal strength is below an absolute threshold value. | 10-01-2015 |
20150282010 | METHOD AND APPARATUS FOR SELECTING A CELL DURING CALL ORIGINATION - Methods and apparatuses relating to wireless communication of a user equipment (UE) are provided including receiving an indication to perform a call origination procedure when communicating in a serving cell, selecting a neighbor cell for performing the call origination procedure based at least in part on receiving the indication and performing the call origination procedure with a wireless network using the neighbor cell after selecting the neighbor cell in response to receiving the indication. Selecting the neighbor cell can include performing reselection or switching subscriptions in a multiple subscription UE while delaying the call origination procedure until after the selection. | 10-01-2015 |
20150282022 | MEASUREMENT SCHEDULE FOR MULTIPLE RADIO ACCESS TECHNOLOGIES - A user equipment (UE) determines which neighbor cell frequencies and radio access technologies (RATs) to measure based on the UE's recorded history of measurement results and searches. In one instance, the UE determines a set of neighbor cells for each of multiple serving cells. The UE records measurement results and search history for each of the set of neighbor cells, and the corresponding multiple serving cells. In another instance, the UE determines a measurement schedule for neighbor cells, including neighbor RATs and/or frequencies, based on the recorded measurement results, search history and the current serving cell. | 10-01-2015 |
20150289189 | CELL RESELECTION - A method of wireless communication measures a signal strength and/or quality of a target cell. An absolute threshold value is set based at least in part on the rank difference between a serving cell and the target cell. The serving cell and target cell may have the same priority or no network indicated priority. The UE reselects to the target cell when the signal strength exceeds the absolute threshold value. | 10-08-2015 |
20150289314 | TUNE-AWAY FOR MULTI-SIM MULTI-STANDBY DEVICES - A multi-subscriber identity module (SIM) multi-standby user equipment (UE) improves recovery of an original operation of a first radio access technology (RAT) when the UE tunes away from the first RAT. In some instances, the UE communicates with the first RAT on a transmit chain and a receive chain and then tunes to a second RAT on the receive chain to monitor downlink communications or activities of the second RAT. The UE transmits on the first RAT over the transmit chain, while tuned to the second RAT. Thus, the UE continues to perform uplink transmission when the UE tunes away, which allows a base station of the first RAT to track the UE for downlink beam-forming. | 10-08-2015 |
20150312007 | METHOD AND APPARATUS FOR OPTIMIZED HARQ FEEDBACK WITH CONFIGURED MEASUREMENT GAP - A method and apparatus for improved downlink data transport with hybrid automatic repeat request (HARQ) feedback and a measurement gap are provided. A user equipment (UE) receives from a network a transmission grant for downlink data on a first control channel. The UE receives the data from the network via a transport channel. In response to the received data, the UE determines whether transmission of an acknowledgement message falls in a measurement gap. Upon determining that the transmission of the acknowledgement message by the UE falls in the measurement gap, and prior to receiving from the network a retransmission grant for the data on the first control channel, the UE sends the acknowledgement message on a second control channel in a sub-frame following the measurement gap. The first control channel is associated with the second control channel. | 10-29-2015 |
20150327100 | IDLE INTERVAL AND DEDICATED CHANNEL MEASUREMENT OCCASION CONFIGURATIONS - An apparatus and method for wireless communication extends a measurement gap in a high speed data network. When it is determined a high speed data channel will fall within a measurement gap, the monitoring of the grant channel corresponding to the high speed data channel is skipped. The measurement gap is extended for inter radio access technology (IRAT) measurement to include the time slot containing the grant channel when the time slot only includes the grant channel corresponding to the high speed data channel that will fall in the measurement gap. | 11-12-2015 |
20150327295 | INTER RADIO ACCESS TECHNOLOGY MEASUREMENT GAP - A method of wireless communication includes receiving a data grant for multiple retransmission time slots associated with successfully decoded high speed data. The grant is in response to a base station detecting a NACK. The method also includes tuning away from a serving cell during the retransmission time slots. | 11-12-2015 |
20150333890 | PROCESSING DATA GRANTS AND HIGH SPEED DATA WITH A MEASUREMENT GAP - In a method of wireless communication, a grant allocating a plurality of high speed subframes for high speed data channels is received before a measurement gap for tuning away from a serving radio access technology (RAT). At least one high speed subframe is allocated in the grant falling within the measurement gap. High speed data is processed only on high speed subframes of the plurality of high speed subframes before and after the measurement gap. An acknowledgement/negative acknowledgement (ACK/NACK) feedback is transmitting and only the high speed subframes of the plurality of high speed subframes before and after the measurement gap are considered. | 11-19-2015 |
20150334553 | RADIO LINK CONTROL STATUS PROTOCOL DATA UNIT HANDLING - A method of wireless communication with a multi subscriber identity module (SIM) multi standby UE includes tuning away from a data call on a first SIM to perform an activity for a second SIM. The method also includes tuning back to the data call on the first SIM and delaying, for a predetermined time period, a layer 2 message after tuning back. The layer 2 message can be a protocol data unit (PDU) status transmission in response to receiving a polling bit, a radio link control (RLC) protocol data unit (PDU) polling bit transmission, or
| 11-19-2015 |
20150334589 | MULTI-RADIO ACCESS TECHNOLOGY (RAT) MEASUREMENT SCHEDULING - A method of wireless communication includes adaptively modifying a measurement schedule order for a current discontinuous reception cycle. The method also includes receiving system information for two or more cells. The measurement schedule order is based on a priority of a cell associated with a radio access technology, a frequency, or a combination thereof. | 11-19-2015 |
20150334627 | CIRCUIT SWITCHED FALL BACK CELL RESELECTION - A user equipment (UE) reduces delays during cell reselection for a circuit switched call back (CSFB) voice call in a radio access technology (RAT). In one instance, the UE prevents cell reselection from a first cell of a RAT to a second cell of the same RAT during system information collection of the first cell. In some instances, the preventing is based on a signal strength of the first cell or a signal strength difference between the first cell and the second cell. | 11-19-2015 |
20150334740 | HIGH-SPEED TUNE-AWAY FOR MULTI-SIM DEVICES - A user equipment (UE) prevents re-transmissions of downlink high-speed data during a tune away procedure when an acknowledgment (ACK) to the high-speed data is not received at a network. In one instance, the UE decodes a first high-speed grant and corresponding downlink high-speed data before tuning away from a serving base station. The UE determines that a first timing for transmitting an acknowledgement of the decoded high-speed downlink data occurs during a tune away gap. The UE determines a second time for sending the acknowledgment based on a determination of a second high-speed grant missed during the tune away gap. The UE transmits an acknowledgement (ACK) for the decoded downlink high-speed data in accordance with a time line of the missed second high-speed grant. | 11-19-2015 |
20150350934 | UPLINK TIMING ADJUSTMENT IN MULTI-SIM/MULTI-STANDBY DEVICES - A method/apparatus for wireless communication for a multi SIM/multi standby device having a single radio stores an uplink transmission timing of a first radio access technology (RAT) and a first path loss measurement before tuning away from the first RAT to perform an activity with a second RAT. A second path loss of the first RAT is measured after tuning back, and the second path loss measurement is compared to the first path loss measurement. The uplink transmission timing is adjusted based at least in part on the comparison. | 12-03-2015 |
20150350959 | REDUCED LATENCY DURING RANDOM ACCESS PROCEDURE - A user equipment (UE) reduces random access procedure delays when reselecting or redirecting from a cell of a first radio access technology (RAT) by preventing a persistence check before initiating the random access procedure. In one instance, the UE prevents the persistence check by preventing collection of system information including a scaling factor used for the persistence check before initiating the random access procedure. | 12-03-2015 |
20150350963 | PSEUDO-FAST RETURN IN A WIRELESS NETWORK - A method and/or apparatus for wireless communication determines whether circuit switched fall back (CSFB) occurred from a first RAT to a second RAT. A call is handed over from the second RAT to the third RAT and a UE attempts to return directly to the first RAT from the third RAT when the CSFB occurred and the call is released from the third RAT. | 12-03-2015 |
20150350973 | PRIORITY BASED CELL RESELECTION - A user equipment (UE) expedites cell reselection from a higher priority radio access technology (RAT) to a lower priority RAT. In one instance, the UE determines whether a serving cell signal quality exceeds a threshold when a UE is in idle mode. The serving cell is associated with a higher priority RAT. In another instance, the UE performs an expedited search and measurement of cells of a lower priority RAT when the serving cell signal quality is below the threshold by commencing search and measurement before a next discontinuous reception (DRX) cycle scheduled for measurement. | 12-03-2015 |
20150373671 | TUNE AWAY IN MULTI-SIM/MULTI-STANDBY DEVICE - A user equipment (UE) including a single receiver tunes away from a first communication entity to perform a communication activity for a second communication entity during a network configured measurement gap associated with a first communication entity. In one instance, the user equipment performs the communication activity for the second SIM when the user equipment determines that a page of the second SIM occurs during the network configured measurement gap. The UE also performs inter radio access technology (IRAT) measurement during the network configured measurement gap. | 12-24-2015 |