QUAL COMM Incorporated Patent applications |
Patent application number | Title | Published |
20160044594 | DYNAMIC CELL CLUSTER INTERFERENCE MANAGEMENT SCHEME USING DYNAMIC POINT SELECTION (DPS) OR SEMI-STATIC POINT SELECTION (SPSS) FOR ENHANCED INTERFERENCE MANAGEMENT AND TRAFFIC ADAPTATION (EIMTA) - Methods and apparatus are disclosed for interference management. The interference management is based on dynamic point selection or semi-static point selection. The method includes determining interference at a plurality of network nodes. The method includes selecting a transmission point from the plurality of network nodes for a transmission to at least one mobile entity based on the determined interference. | 02-11-2016 |
20150039848 | METHODS AND APPARATUSES FOR IN-SYSTEM FIELD REPAIR AND RECOVERY FROM MEMORY FAILURES - In a particular embodiment, a device includes memory address remapping circuitry and a remapping engine. The memory address remapping circuitry includes a comparison circuit to compare a received memory address to one or more remapped addresses. The memory address remapping circuitry also includes a selection circuit responsive to the comparison circuit to output a physical address. The physical address corresponds to a location in a random-access memory (RAM). The remapping engine is configured to update the one or more remapped addresses to include a particular address in response to detecting that a number of occurrences of errors at a particular location satisfies a threshold. | 02-05-2015 |
20140270534 | VIDEO RETARGETING USING SEAM CARVING - Aspects of the present disclosure provide improved image resizing techniques including seam craving and seam lining that consider image content in addition to geometric constraints. In one aspect of the disclosure, the energy for each of the pixels of an image is determined in accordance with an energy function. A line energy is determined for each straight line of the image, and the line energy corresponds to a sum of the energy of the pixels in each straight line. A plurality of starting points are identified for a plurality of seams corresponding to the straight lines having the lowest line energy. Further, the paths for each of the seams are determined. The image may be resized by removing the seams from the image. | 09-18-2014 |
20140181459 | SPECULATIVE ADDRESSING USING A VIRTUAL ADDRESS-TO-PHYSICAL ADDRESS PAGE CROSSING BUFFER - A method includes receiving an instruction to be executed by a processor. The method further includes performing a lookup in a page crossing buffer that includes one or more entries to determine if the instruction has an entry in the page crossing buffer. Each of the entries includes a physical address. The method further includes, when the page crossing buffer has the entry in the page crossing buffer, retrieving a particular physical address from the entry in the page crossing buffer. | 06-26-2014 |
20140098688 | OUTER LOOP CONTROL OF CQI REPORTING AND GENERATION IN WIRELESS NETWORK - An outer loop for channel quality metric estimation may analyze channel realization and perform adaptive averaging to correct for an inner loop bias. The outer loop may take into account varying channel conditions and may adjust a reported channel quality metric up or down depending on throughput. | 04-10-2014 |
20130344842 | MOBILE SYNCHRONIZATION TO AID IN EMERGENCY SITUATIONS - Techniques for transferring device-related content between mobile devices in low coverage areas are provided. In emergency situations, various information (e.g., current location coordinates, time-stamp, location history, sensor measurements and other device-related or network-related information) may be useful to emergency services. However, this information may be difficult to provide to an external server in areas of low or no cellular coverage. Thus, provided techniques enable mobile devices to communicate with each other in low coverage areas to build up a history of information that may be useful in an emergency situation. | 12-26-2013 |
20130315110 | SETTING UP A FULL-DUPLEX COMMUNICATION SESSION AND TRANSITIONING BETWEEN HALF-DUPLEX AND FULL-DUPLEX DURING A COMMUNICATION SESSION WITHIN A WIRELESS COMMUNICATIONS SYSTEM - In an embodiment, an originating device sends a request, to a server, to initiate a full-duplex session with a target device. Responsive to the full-duplex request, a half-duplex session is set-up from the originating device to the target device before the full-duplex session is set-up. The target device indicates its acceptance of the half-duplex session, receives half-duplex media from the originating device and selectively indicates its acceptance of the full-duplex session. In another embodiment, during a session currently supported either by half-duplex or full-duplex, the server arbitrating the session receives a request from one of the session participants to transition the session to another duplex-type. The server then selectively transitions the duplex-type of the session. | 11-28-2013 |
20130235956 | STABILITY CONTROL IN SIGNAL DETECTION THROUGH CODE AND TIME DOMAIN CONDITIONING - In wireless communication systems, received signal estimation and detection is computationally intensive. During such processing, received signal matrices may be conditioned prior to inversion to improve stability. In particular, code domain conditioning, followed by time domain conditioning prior to inversion results in improved receiver performance. Such code and time domain conditioning may be particularly suited to a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) system where code values are not averaged out of a received signal matrix. | 09-12-2013 |
20120289227 | GESTURE-BASED COMMANDS FOR A GROUP COMMUNICATION SESSION ON A WIRELESS COMMUNICATIONS DEVICE - In an embodiment, a user equipment (UE) detects that a user has made a pre-defined gesture that is associated with setting up a group communication session (GCS) with a communication group. The UE transmits a call request message to an application server to request set-up of the GCS. In another embodiment, the UE receives a user input requesting the UE to monitor for gestures by a user of the UE during the GCS. The UE then monitors one or more sensors during the GCS to detect whether the user of the UE has made a pre-defined gesture. In another embodiment, during the GCS, the UE detects that the user has made a pre-defined gesture, maps the detected gesture to a gesture-based command associated with transitioning the UE's floor-holder status and then transmits a request to facilitate the floor-holder status transition to the application server in accordance with the gesture-based command. | 11-15-2012 |
20120243447 | DUAL ANTENNA DISTRIBUTED FRONT-END RADIO - Certain aspects of the present disclosure provide a dual antenna distributed radio frequency front end (RFFE). RFFE topologies described herein may provide lower insertion loss (IL), reduced emission mask, decreased power consumption, and/or lower noise figure (NF) compared to conventional RFFE topologies. One example apparatus for wireless communications generally includes first and second power amplifiers (PAs) for amplifying signals for transmission, a transmit antenna for transmitting the amplified signals, a receive antenna for receiving other signals to be processed in a receive path, and a first transmit filter configured to filter the amplified signals from the first PA before amplification by the second PA. For certain aspects, a divided inter-stage filter providing overlapping frequency bands may be utilized. For certain aspects, the RFFE may support frequency-division duplexing (FDD)/TDD (time-division duplexing) coexistence, including support for FDD/TDD MIMO (multiple input multiple output). | 09-27-2012 |
20120099449 | SPATIAL RESUSE IN A WIRELESS NETWORK - In a first method, a first apparatus determines a channel gain to a second apparatus with which the first apparatus is communicating. The first apparatus determines interferer backoff information that ensures an interference level at the first apparatus such that a signal received from the second apparatus can be decoded reliably. The interferer backoff information is determined based on the channel gain. The first apparatus transmits information based on the interferer backoff information in a message to the second apparatus. In a second method, a first apparatus in communication with a second apparatus determines a channel gain to a third apparatus with which the first apparatus can potentially interfere. The first apparatus receives a message from the third apparatus. The message includes interferer backoff information. The first apparatus determines a power for transmitting a signal to the second apparatus based on the interferer backoff information and the channel gain. | 04-26-2012 |
20120093208 | SELECTIVE COHERENT AND NON-COHERENT DEMODULATION METHODS AND APPARATUSES - Techniques are provided which may be implemented using various methods and/or apparatuses in a receiver of an electronic device to allow for a received signal to be demodulated using both coherent and non-coherent demodulation techniques and for selecting one of the demodulated data signals based, at least in part, on a drift rate measurement of a carrier frequency of the received signal. | 04-19-2012 |
20110235568 | REPEATER-ASSISTED MANAGEMENT OF MACRO NETWORK COVERAGE - A method of managing macro network coverage among a plurality of repeaters deployed to extend coverage of one or more base stations may include receiving feedback information from at least two repeaters indicative of macro network coverage at locations corresponding to each repeater, determining a coverage status of the macro network based on the feedback information, and sending a control signal to at least one repeater instructing the repeater to adjust one or more operating parameters based on the determined coverage status. | 09-29-2011 |
20110235514 | DATA RADIO BEARER MAPPING IN A TELECOMMUNICATION NETWORK WITH RELAYS - Certain aspects of the present disclosure relate to techniques for operating a relay having a first plurality of radio bearers (RBs) that interface with a donor base station and having a second plurality of RBs that interface with at least one user equipment (UE). According to certain aspects, the techniques generally include mapping each of the second plurality of RBs to one of the first plurality of RBs based on a QoS class identifier (QCI) associated therewith. | 09-29-2011 |
20110185248 | MAJORITY VOTE ERROR CORRECTION - In general, techniques are described for performing majority vote error correction techniques. In operation, a communication device comprising a control unit implements the majority vote error correction techniques. The control unit includes a link management module to request a first retransmission of a first communication received over a wireless communication medium in response to detecting a first uncorrectable error in the first communication, requests a second retransmission of the first communication in response to detecting a second uncorrectable error in a second communication received in response to the first retransmission request and receives a third communication in response to the second retransmission. The control unit also includes a majority vote module to, in response to detecting a third uncorrectable error in the third communication, perform a bit-wise majority vote on corresponding bits of the first, second and third communications to generate an error-corrected communication. | 07-28-2011 |
20110090115 | METHODS AND APPARATUSES FOR RESPONDING TO A REQUEST FOR SATELLITE POSITIONING SYSTEM RELATED INFORMATION ASSOCIATED WITH A MOBILE STATION - Methods and apparatuses are provided which may be enabled within and/or for use with a Satellite Positioning System (SPS) receiver and/or other like apparatuses or device(s) to perform and/or otherwise support certain location sessions. | 04-21-2011 |
20110021168 | METHOD AND APPARATUS FOR RECEIVER WITH DUAL MODE AUTOMATIC GAIN CONTROL (AGC) - A method and apparatus for toggling between a first mode and a second mode of a receiver based on an input signal level comprising comparing a gain state of the receiver to at least one gain state thresholds; determining the presence of a jammer; and switching a current mode of the receiver to a new mode based on the presence of the jammer and the comparison of the gain state. In one aspect, the apparatus comprises two LNAs operating in different modes; a jammer detector to provide a jammer interrupt bit to indicate the presence of a jammer; and an automatic gain control (AGC) circuit coupled to the jammer detector for receiving the jammer interrupt bit, wherein the AGC circuit selects between the two LNAs based on the jammer interrupt bit and a gain state comparison. | 01-27-2011 |
20100316002 | MULTIBAND ANTENNA FOR COOPERATIVE MIMO - Certain aspects provide a method for reducing interference in a cooperative MIMO system. | 12-16-2010 |
20100279622 | SYSTEM AND METHOD FOR REAL-TIME PERFORMANCE AND LOAD STATISTICS OF A COMMUNICATIONS SYSTEM - A system and method for producing real-time results of performance data for wireless communications servers are disclosed. A plurality of bins, each bin corresponding to a range, are maintained. When a measurable event is detected, the event is placed into the corresponding bin. When a performance metric is desired, it is calculated based on each bin, and the metric is returned, with an accuracy inversely proportional to the size. | 11-04-2010 |
20100278035 | METHOD AND SYSTEM FOR MULTI-USER DETECTION USING TWO-STAGE PROCESSING - Systems and methods for multi-user detection in a multiple access system are provided. In one aspect, an apparatus is provided. The apparatus comprises a processing unit configured to process received chips into received symbols for a plurality of users and a computation unit configured to compute a multi-user matrix using a Hadamard matrix, wherein the multi-user matrix relates user symbols for the plurality of users to the received symbols. The apparatus further comprises a detection unit configured to detect the user symbols for the plurality of users using the received symbols and the computed multi-user matrix. | 11-04-2010 |
20100210206 | GNSS RECEIVER AND SIGNAL TRACKING CIRCUIT AND SYSTEM - A GNSS platform architecture with advanced tracking and search engines. The tracking and search functions are separated into 2 independent engines each highly optimized for their targeted functions. | 08-19-2010 |
20100195773 | MUTLIPHASE CODE GENERATOR AND GNSS RECEIVER - A code generator, for providing a PRN sequence in a GNSS receiver, has the capability to store an internal status at any given point of the generated sequence. The stored status can be reloaded in the generator, upon an external command, or after a given number of generation cycles, thus slewing the phase of the generated PRN sequence to the value corresponding to the stored status. A parallel-correlation GNSS receiver includes one or more slewable code generators, for successively generating local replicas of GNSS PRN sequences, having different code phases, corresponding to a plurality of candidate signals of different code and Doppler shifts. Each time the code generator must switch from one candidate to a second, it is preemptively controlled or programmed, while generating the code for the first candidate, to store the internal status at the phase point almost aligned with the start of the PRN sequence for the second candidate. When the correlation engine switches from the first candidate to the second one, the stored status is loaded in the code generator, and the small misalignment between the code generator and the desired sequence is corrected, thus setting it at the needed point in phase space. The generator and receiver of the invention are well suited to the search of several GNSS signal in parallel, and require less memory than a table-based code generator. | 08-05-2010 |
20100150373 | SHARING PUBLIC ADDRESSING SYSTEM USING PERSONAL COMMUNICATION DEVICES IN AN AD-HOC NETWORK - A method, system, and computer program product for using a personal communication device as a microphone in a seminar or conference setting. A client is electrically connected to a PA system and one of many hosts can access the PA system by associating with the client. The association can be transferred by the client or the host. Tokens can be generated for each transfer and a map can be created and stored. | 06-17-2010 |
20100036921 | PROCESSING OF A MOBILE TERMINATED DATA OVER OVER SIGNALING MESSAGE - Systems and methods for processing a data over signaling (DoS) message at an access terminal are disclosed. A message is received at an access terminal. The message is decoded to determine if it is a DoS message. Upon detecting the DoS message a sleep delay timer is set to prevent the access terminal from entering a sleep state for a predetermined time. | 02-11-2010 |
20100014603 | GUARD INDEPENDENT SIGNAL MAPPING - Systems and methodologies are described that facilitate guard bandwidth independent mapping and de-mapping of bandwidth in a wireless communication system. Broadcast signals can be created as if all bandwidth were available, and guard bandwidth can be initialized over the utilized bandwidth such to puncture the data existing in the guard bandwidth. Upon decoding the broadcast signal, size of the guard bandwidth can be predetermined or estimated allowing a center portion of the signal to be decoded without decoding the guard bandwidth. In this regard, the decoder of the signal need not find exact positions of the guard bandwidth as transforming and decoding the center portion can provide a substantial portion of the signal to interpret the signal. | 01-21-2010 |
20100009634 | INTER-CELL INTERFERENCE CANCELLATION FRAMEWORK - Communication techniques enable efficient communication to an UE (User Equipment) that is subject to a dominant interference signal that is transmitted by a different base station. Disclosed interference cancellation techniques, both UE-centric and network-centric, are suitable to this situation. These techniques are particularly advantageous when undesirable or difficult to introduce changes in the physical (PHY) and medium access control (MAC) layers at the existing base stations. UE-centric framework refers to an approach largely implemented by UEs to include pico or femto cells. Network-centric framework closed-loop coordination between base stations and UEs mitigate interference thereby improving network performance. In particular, an interfering base-station can help a “victim” UE by adjusting downlink pilot and control power and to adjust traffic data rates responsive to information that the “victim” UEs provide, including information about the interfering link and performance of the cancellation itself sent over the air or using the backhaul. | 01-14-2010 |
20100004012 | BUNDLING OF COMMUNICATION SIGNALS FOR EFFICIENCY - Systems and methods for bundling signals in a wireless communication system are disclosed. A connection request and a reservation for QoS resources can be bundled into an access message at an access terminal. The access message with the bundled communication signals can then be transmitted to an access network. An application layer (e.g., a DataOverSignaling (DOS)) message can also be bundled with the connection request and the reservation into the access message. | 01-07-2010 |
20090285158 | DYNAMIC COVERAGE ADJUSTMENT IN A MULTI-CARRIER COMMUNICATION SYSTEM - Techniques for dynamically varying coverage in a multi-carrier communication system are described. A sector may operate on multiple carriers. The sector may vary coverage on a given carrier k based on its load, so that less interference may be caused to other sectors when the sector load is light. In one design, the sector may communicate on a first carrier at a first transmit power level and on a second carrier at a second transmit power level equal to or lower than the first transmit power level. The sector may vary the second transmit power level based on its load to vary the coverage of the second carrier. The sector may reduce the second transmit power level to zero or a low level if the sector load is light. The sector may also vary the second transmit power level based on a function of sector load or a switching pattern. | 11-19-2009 |
20090238116 | METHOD AND APPARATUS FOR MEDIA ACCESS CONTROL -BASED FAST CELL SWITCHING FOR HIGH-SPEED PACKET ACCESS - Methods and apparatuses for facilitating switching HSPA (high speed packet access) serving cells from each of an RNC (radio network controller), base station, and access terminal are provided. The RNC pre-configures an access terminal and each base station in an active set for HS-DSCH operation by providing identification codes identifying each of the base stations. The RNC transmits data packets tagged with sequence numbers to each base station where they are synchronously buffered. The access terminal initiates a handover by transmitting a PDU (protocol data unit) to each of the base stations. The PDU is encoded with the identification code of a target base station and a sequence number of a subsequent packet. The target receives the PDU and directly completes the handover with the access terminal. | 09-24-2009 |
20090092056 | METHODS AND APPARATUS FOR MANAGING MEASUREMENT BEHAVIOR OF DRX MODE UE - Systems and methods that manage measurement behavior of a UE in connected mode and while in discontinuous operation. The UE is enabled to autonomously (e.g., independent of instructions from network) enter a state of measurement, and generate a measurement report for the network, when quality of serving cell falls below the threshold of S_Intrasearch parameter. Moreover, the UE can perform inter-frequency and/or inter-RAT measurements autonomously by employing the “natural gaps” from its DRX pattern, when such are adequate to perform such measurements. | 04-09-2009 |
20090086691 | SYSTEM AND METHOD TO FACILITATE HANDLING OF ACCESS TERMINALS CAMPED ONTO AN ACCESS POINT BASE STATION - Devices and methods are provided for handling a visitor access terminal (AT) associated with a macro network, in response to the visitor AT entering a coverage area of an access point (AP) base station. In one approach, the method involves allowing registration of the visitor AT with the AP base station, and forwarding information regarding the registration to the macro network. Upon activation of the visitor AT, communication between the visitor AT and the macro network may be facilitated by, for example, forwarding a paging request to the visitor AT through the AP base station. | 04-02-2009 |
20090028126 | METHOD AND APPARATUS FOR POLLING IN A WIRELESS COMMUNICATION SYSTEM - A data packet communication system employs radio link control (RLC) transmission between a transmitter and a receiver with an Automatic Repeat Request (ARQ) arrangement whereby polling of the receiver is accomplished with reduced amount of redundantly transmitted data, such as between an access node and terminal. Upon a polling event, such as emptying of a transmission buffer of the transmitter, expiration of a polling timer, or reaching a radio link control (RLC) protocol data units (PDUs) count threshold, the transmitter sends a polling command to the receiver. This polling command is smaller than any of the RLC PDUs by resegmenting to a variably sized PDU sending a reduced amount of data. With evolving communication standards tending toward larger PDUs, such as in excess of a kilobyte for HSPA+ (High-Speed Packet Access Evolution) and 3GPP LTE (Long Term Evolution), this inefficiency can be of increasing impact. | 01-29-2009 |