Patent application number | Description | Published |
20120014371 | METHOD AND APPARATUS FOR AUTONOMOUS UPLINK TIMING ADVANCE MAINTENANCE - According to some embodiments, a mobile device may calculate adjustments of a timing advance based on a determined relative downlink timing change. Adjustments of the timing advance may be made toward a target timing advance in accordance with an adjustment parameter. The adjustment parameter may be adapted based on a received timing advance command and at least one of: a calculated adjustment of the timing advance; and a difference between the target timing advance and the timing advance. In another aspect, self-adjustment of a timing advance performed by a mobile device may be configured based on a property of a communication channel between the mobile device and a base station. In another aspect, self-adjustment of a timing advance performed by a mobile device may be configured based on timing advance commands received from a base station. | 01-19-2012 |
20120027140 | SYSTEM AND METHOD FOR CHANNEL ESTIMATION - A method for channel estimation includes receiving data at a number of frequency intervals in a frequency band over a number of first time intervals. A first set of channel estimates is determined for each pilot symbol within the data over a second time interval comprising at least one first time interval, and time-direction interpolation is performed to determine a second set of channel estimates for a number of data portions in a frequency interval using the first set of channel estimates. The frequency interval comprises a data portion comprising a pilot symbol. Frequency-direction interpolation is performed to determine a third set of channel estimates for each first time interval. The time-direction interpolation and the frequency-direction interpolation can be performed in reverse order with the channel estimates generated by the frequency-direction interpolation being used as inputs for time-direction interpolation. | 02-02-2012 |
20120115463 | METHOD AND DEVICE FOR IMPROVED USER EQUIPMENT MEASUREMENTS AND REPORTING - A method and electronic device for improved filtering of mobile communications device physical layer measurement ratios to reduce the variance of reported measurements. First and second signal powers of a cell in a mobile communications network are measured and a filter having a network determined filter coefficient is applied to the first signal power. A signal quality value is determined from the filtered first signal power and the second signal power. A second filter with a network determined filter coefficient may be applied to the second signal power. An example signal quality value comprises a reference signal received quality (RSRQ) comprised of the ratio of reference signal received power (RSRP), multiplied by the number (N) of resource blocks of a carrier received signal strength indicator (RSSI), to the carrier RSSI. | 05-10-2012 |
20120122495 | SYSTEM AND METHOD FOR REDUCING ENERGY CONSUMPTION OF MOBILE DEVICES USING EARLY PAGING INDICATOR - A method for reducing energy consumption of mobile devices using a phase-continuous early paging indicator (EPI) is provided. For each of at least one paging occasion either A) an EPI indicative that a page is present in the paging occasion is transmitted during an EPI occasion in advance of the paging occasion, the EPI comprising at least one phase-continuous tone for the EPI occasion, and a page is transmitted during the paging occasion, or B) an EPI indicative that a page is not present in the paging occasion is transmitted during an EPI occasion in advance of the paging occasion, the EPI comprising at least one phase-continuous tone for the EPI occasion. A mobile device is configured to monitor for an EPI that comprises at least one phase-continuous tone for an EPI occasion in advance of its paging occasion in order to determine if a page is potentially present. | 05-17-2012 |
20120166074 | UPDATING MAP DATA FROM CAMERA IMAGES - A method of updating map data entails capturing an image using a camera, determining a location of an object in the image, creating new map data to represent the object in the image, and updating a map database to include the new map data for the object in the image. This method may be implemented on a GPS-enabled wireless communications device having an onboard camera which can transmit the new map data to a map server for updating its map database. Determining the position of the object in the image relative to the wireless device may be accomplished using a rangefinder and compass, triangulation of multiple images of the object, or a stereoscopic camera. The accuracy of the GPS position fix may be improved by capturing images of recognizable objects for which location coordinates are available. | 06-28-2012 |
20120235919 | PORTABLE ELECTRONIC DEVICE INCLUDING TOUCH-SENSITIVE DISPLAY AND METHOD OF CONTROLLING SAME - A method of facilitating input at a portable electronic device having a touch-sensitive display including: when a first portion of a keyboard is displayed in a keyboard area on the touch-sensitive display, detecting a navigation input in a navigation area on the touch-sensitive display; and in response to detecting the navigation input, displaying a second portion of the keyboard; wherein the keyboard area and the navigation area do not overlap. | 09-20-2012 |
20120322453 | MOBILE GUIDED UPLINK INTERFERENCE MANAGEMENT - Systems and methods can be implemented on a user device and eNBs to manage uplink interference. A user device associated with a serving base station may detect downlink interference from one or more interfering base stations that are different from the serving base station. The user device that detects downlink interference can determine an uplink radio resource set from a plurality of predefined uplink radio resource sets based, at least in part, on the detected downlink interference. The user device can then transmit to the serving base station a radio resource indication identifying the determined uplink radio resource set to facilitate uplink interference management. | 12-20-2012 |
20130017828 | METHOD AND SYSTEM FOR FREQUENCY SCAN USING AN ADAPTIVE MEASUREMENT INTERVALAANM WENG; JIANFENGAACI KANATAAACO CAAAGP WENG; JIANFENG KANATA CAAANM DUGGAN; JASON ROBERTAACI OTTAWAAACO CAAAGP DUGGAN; JASON ROBERT OTTAWA CAAANM CREASY; TIMOTHY JAMESAACI OTTAWAAACO CAAAGP CREASY; TIMOTHY JAMES OTTAWA CA - Aspects of the present application include using adaptive measurement intervals to improve RSSI scan accuracy. A method may involve determining a first power value in respect of a first measurement time interval, determining whether or not the first power value meets at least one criterion, when the first power value does not meet the at least one criterion, determining at least one additional power value, selecting at least one power value from a set of power values that have been determined, the set including the first power value and the at least one additional power value, and determining the power value for use in cell selection or cell re-selection based on the selected at least one power value. The methods may be applied to any cell selection or re-selection scheme for which an adaptive measurement interval may be beneficial. | 01-17-2013 |
20130022090 | Dynamic Cyclic Prefix Mode for Uplink Radio Resource Management - Systems and methods can be implemented on a base station and one or more mobile devices to use dynamic cyclic prefix mode for uplink radio resource management. A base station may receive an uplink signal from each of a plurality of mobile devices. The base station can then estimate, based on the received uplink signal, a channel characteristic of the uplink channel for each of the plurality of mobile devices, and determine, based on comparing the estimated channel characteristic to a characteristic threshold, a cyclic prefix mode for each of the plurality of mobile devices. | 01-24-2013 |
20130039195 | METHOD AND SYSTEM FOR RANDOM ACCESS INTERFERENCE MITIGATION IN HETEROGENEOUS CELLULAR NETWORKS - Methods and systems at a user equipment, low power access node and first access node operating in a wireless network having a plurality of access nodes comprising a first access node and at least one low power access node having lower transmit power than the first access node, wherein the user equipment receives stronger downlink signals from the first access node than from the at least one low power access node, the method at the user equipment determining, by the user equipment, whether a low power access node is better for uplink data transmission than the first access node; and if the low power access node is better for uplink data transmission, sending from the user equipment to the low power access node, a random access preamble directed to the first access node. | 02-14-2013 |
20130091429 | APPARATUS, AND ASSOCIATED METHOD, FOR COGNITIVELY TRANSLATING MEDIA TO FACILITATE UNDERSTANDING - An apparatus, and an associated method, facilitates user understanding of the audio component of media that is played back at a device having media player functionality. Responsive to detection of user selection, a portion of the audio component of the media is converted into textual, or other, form to provide a converted-form representation of the audio component portion. The representation is displayed to the user. The representation is further translatable into a second language, and the translated, representation is displayed to the user. | 04-11-2013 |
20130113719 | TOUCH-SENSITIVE DISPLAY METHOD AND APPARATUS - An example method includes detecting a hold touch and a release touch on a touch-sensitive display of an electronic device, wherein the hold touch and the release touch overlap at least partially in time, detecting release of the release touch, and in response to detecting the release of the release touch, displaying an editing control while the hold touch is detected. The editing control may include a virtual trackpad. | 05-09-2013 |
20130148791 | METHODS AND DEVICES TO RETRIEVE VOICE MESSAGES - Methods and devices to retrieve voice messages are disclosed. An example device includes a network interface to access a voicemail server via a network, a message parser to remove a non-message portion of a voicemail access session from a voicemail access session, and a storage device to store the message portion of the voicemail access session. | 06-13-2013 |
20130201966 | METHOD AND SYSTEM FOR UPLINK INTERFERENCE MANAGEMENT IN HETEROGENEOUS CELLULAR NETWORKS - A method, at a first network access device of a heterogeneous network, the method sending a report to a second network access device indicating a user equipment (UE) in the vicinity of the second network access device to be handled in the uplink by the second network access device; receiving an uplink timing control report from the second network access device; transmitting uplink timing control adjustments to the UE; allocating uplink resources for the second network access device to forward uplink information; allocating physical downlink control channel (‘PDCCH’) resources belonging to the first network access device for transmitting uplink scheduling information provided by the second network access device to the UE; receiving uplink information including uplink scheduling information from the second network access device at the first network access device; and sending the uplink scheduling information to the UE. | 08-08-2013 |
20130203468 | METHODS AND DEVICES FOR MERGING CONTACT RECORDS - Methods and devices for merging contact records are described. In one example aspect, a method includes: determining if an input via the touchscreen display corresponds to a pre-determined merge-contact-record gesture that is a multi-touch gesture that includes a selection of a first interface element and a second interface element, the first interface element being associated with a first contact record and the second interface element being associated with a second contact record; and if the input corresponds to the pre-determined merge-contact-record gesture, merging the first contact record with the second contact record. | 08-08-2013 |
20130225134 | SMART-PHONE ANSWERING SERVICE FOR HANDLING INCOMING CALLS - An electronic device capable of receiving and sending calls is configured with at least two modes. When a call is received by a device in a normal mode, the device displays information and presents selectable options for handling the received call. When the device is in a restricted or meeting mode, the device provides authorized callers with the option of prompting the called party to immediately answer the call or to record a message for later retrieval or take other appropriate action. Settings associated with the normal mode and settings associated with the meeting mode are adjustable. | 08-29-2013 |
20130295989 | Co-existence Aware Rate Support - An apparatus has a first communication module and a second communication module. The first communication module is compatible with a first wireless communication technology, and the second communication module is compatible with a second wireless communication technology that differs from the first wireless communication technology. Transmissions by the second communication module may contribute to interference at the first communication module. The first communication module refrains from advertising support for any data rate that is not expected to be sufficiently resilient in the face of interference caused by transmissions from the second communication module. | 11-07-2013 |
20130301401 | PHICH Transmission in Time Division Duplex Systems - A method is provided for communication in a wireless telecommunication system. The method comprises multiplexing, by a network element, at least one symbol of a PHICH onto at least one resource element of a PCFICH. | 11-14-2013 |
20130301428 | POWER BASED GAIN CONTROL ADJUSTMENT - Method and devices for use in a wireless device are described herein. A signal is received over a plurality of time segments, the signal over each time segment including a plurality of resource element blocks. For each time segment, at least one resource element block is selected from the plurality of resource element blocks of the time segment based on information determined about the time segment. For each time segment, a power value associated with the at least one resource element block of the time segment is determined. For each time segment, a gain adjustment value to adjust the gain of the time segment or one or more subsequent time segments of the signal is determined based upon the power value associated with the at least one resource element block. | 11-14-2013 |
20130301545 | PHICH Resource Provisioning in Time Divsion Duplex Systems - A method is provided for communication in a wireless telecommunication system. The method comprises provisioning, by a network element, for a carrier aggregation-capable UE, in a control region of a downlink subframe, at least one resource for a PHICH. | 11-14-2013 |
20130309978 | RADIO STATION LIST MANAGEMENT - The present disclosure provides radio station list management in a wireless receiver. Upon detection of a scan event, a plurality of radio broadcast channels is scanned to detect available radio stations. Available radio stations that fail to meet a preference criterion are identified and removed to form a list of preferred radio stations. The scan event may be generated dependent upon a time, a location of the wireless receiver, or a broadcast signal quality. Preference criteria may include station content classification and signal quality. | 11-21-2013 |
20130315288 | SYSTEM AND METHOD FOR TRANSMITTING DATA THROUGH A DIGITAL INTERFACE - There are disclosed systems and methods that dynamically vary the word length of data being transmitted through a digital interface. In one embodiment, the method comprises: (i) obtaining at least one parameter indicative of a quality of a signal; (ii) if the at least one parameter indicates that the quality of the signal is above a threshold, then transmitting the data as a number of digital words at a first predetermined word length; (ii) if the at least one parameter indicates that the quality of the signal is below the threshold, then transmitting the data as a number of digital words at a second predetermined word length. The second predetermined word length is different from the first predetermined word length. | 11-28-2013 |
20130318159 | System and Method for Sharing Data Across Multiple Electronic Devices - Methods, computer readable media, and electronic devices are provided that enable data files to be transferred from a source device to one or more destination devices to share the data files. The method includes initiating a transfer of at least one data file to a destination device after detecting initiation of a file sharing session, the at least one data file being associated with the source device; after transferring at least a portion of the at least one data file, sending a first command to the destination device or receiving a second command from the destination device, the first command or the second command indicating an interaction with the at least one data file; and executing the interaction. | 11-28-2013 |
20140003356 | METHOD AND SYSTEM FOR CROSS-SUBFRAME SCHEDULING DURING CARRIER AGGREGATION | 01-02-2014 |
20140024388 | PROVIDING MOBILE-GUIDED DOWNLINK INTERFERENCE MANAGEMENT - Systems and methods can be implemented on a user device and eNBs to manage downlink interference at the user device. The user device in a cell associated with a corresponding serving base station may receive interference from one or more interfering base stations. The user device can identify a preferred radio resource set in response to the detected interference and transmit a preferred radio resource indication to at least the serving base station in response to the detected interference. The preferred radio resource indication can be used for identifying the preferred radio resource set associated with the serving base station. | 01-23-2014 |
20140044108 | TIME-ADVANCED RANDOM ACCESS CHANNEL TRANSMISSION - Systems and methods can be implemented on a wireless device and base stations to facilitate uplink synchronization. The wireless device can transmit a random access preamble to at least one base station serving the wireless device to initiate a random access procedure. The wireless device can identify a signal propagation time associated with the position of the wireless device and the position of the at least one base station serving the wireless device. The wireless device can also identify a positive time advance based on the identified signal propagation time for transmitting the random access preamble. Further, the wireless device can transmit the random access preamble to the at least one base station based on the identified time advance for random access. | 02-13-2014 |
20140119253 | METHOD AND SYSTEM FOR BATTERY ENERGY SAVINGS FOR CARRIER AGGREGATION - A method at a user equipment having a scheduling carrier and at least one scheduled carrier, the method receiving, at a first subframe from the scheduling carrier, a downlink control indication containing a downlink assignment for the user equipment on the scheduled carrier; and turning on a receiver of the user equipment for the scheduled carrier at a future downlink subframe based on the downlink assignment. Further, a method, at a scheduling cell having a scheduling carrier, for scheduling downlink data reception on a scheduled carrier, the method setting a time skew for the scheduled carrier such that a data transmission start time for a subframe at the scheduled carrier is greater than a blind latency decode time on the scheduling carrier. | 05-01-2014 |
20140169151 | PHICH Transmission in Time Division Duplex Systems - A method is provided for communication in a wireless telecommunication system. The method comprises multiplexing, by a network element, at least one symbol of a PHICH onto at least one resource element of a PCFICH. | 06-19-2014 |
20140177485 | METHOD AND APPARATUS FOR INTERFERENCE MITIGATION IN TIME DIVISION DUPLEX SYSTEMS - Methods and apparatus at an evolved Node B (eNB) and user equipment (UE) in cells operating in time division duplex with a first configuration and having a neighbor cell eNB operating in time division duplex with a second configuration, the methods and apparatus: identifying potential eNB-to-eNB; UE-to-UE; eNB-to-UE; and UE-to-eNB interference. Further methods and apparatus to report interference including enumerated interference types to neighbor cell eNBs. Further, methods and apparatus for interference mitigation. | 06-26-2014 |
20140177486 | METHOD AND APPARATUS FOR IDENTIFYING INTERFERENCE TYPE IN TIME DIVISION DUPLEX SYSTEMS - Methods and apparatus at an evolved Node B (eNB) and user equipment (UE) in cells operating in time division duplex with a first configuration and having a neighbor cell eNB operating in time division duplex with a second configuration, the methods and apparatus: identifying potential eNB-to-eNB; UE-to-UE; eNB-to-UE; and UE-to-eNB interference. Further methods and apparatus to report interference including enumerated interference types to neighbor cell eNBs. Further, methods and apparatus for interference mitigation. | 06-26-2014 |
20140334561 | Method and System for Symbol Detection Using Matrix Decomposition - This application proposes using successive interference cancellation with an ordered matrix decomposition coupled with a search based ordered layer detection technique. The search based ordered layer detection technique is used to consider a plurality of hypothesis decision estimates for detection of symbols in multiple data streams. | 11-13-2014 |