Code Division (cdma) Patents (Class 370/320)
  • Patent number: 9204400
    Abstract: The embodiments of the present invention disclose a method and a device for resource configuration. The method includes: determining an extra resource block existing in a wireless resource, where the extra resource block is a resource that cannot be identified by a long term evolution system; configuring transmission power of a resource element in the extra resource block according to a power configuration rule; and sending a signal on the resource element in the extra resource block according to configured transmission power. With the preceding technical solution, an extra resource block can be used for transmitting a signal, so that a resource utilization rate may be improved.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: December 1, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Weimin Xiao, Bingyu Qu, Shulan Feng, Fredrik Berggren, Brian K. Classon
  • Patent number: 9198199
    Abstract: At least one transport data block is transmitted from a first sector of a network over a downlink to a wireless terminal during a time resource element for a multi-flow downlink transmission to the wireless terminal, and at least one transport data block is transmitted from a second sector of the network over a downlink to the wireless terminal during the time resource element for the multi-flow downlink transmission. A feedback message is received for the time resource element from the wireless terminal, wherein the feedback message includes a HARQ-ACK codeword selected from a HARQ-ACK codebook providing HARQ-ACK feedback for the at least one transport data block transmitted from the first sector and for the at least one transport data block transmitted from the second sector. The HARQ-ACK codeword is interpreted for the at least one transport data block transmitted from the first sector based on the first sector being a primary sector for the multi-flow downlink transmission.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 24, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Erik Larsson, Peter Von Wrycza
  • Patent number: 9198203
    Abstract: According to one or more implementations of the disclosure, packets may be transmitted in a low power and lossy network (LLN) by receiving, on a first node, a message from a sending node, and by activating a critical message configuration to be applied in routing the message. A message identifier (e.g., signature) for the message may also be received or gleaned. The message identifier can be compared at the first node to a list of stored message identifiers, created based on routing history, to determine if the message has already been received. As such, if the message has not been received at the first node previously, a first parent and a second parent for the message are identified and the message, along with the critical message indication, can be transmitted to the first parent and the second parent, thereby achieving redundancy in the routing of the message.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: November 24, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: Shmuel Shaffer, Jean-Philippe Vasseur, Sandeep Jay Shetty
  • Patent number: 9185443
    Abstract: A method and system for identifying a service includes a service locator module and a customer service device communicating a channel signal to a service locator module from a customer service module. The service locator module generates a service signal associated with the channel signal and communicates the service signal to the customer service device.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: November 10, 2015
    Assignee: The DIRECTV Group, Inc.
    Inventors: Kapil Chaudhry, Jin H. Chung
  • Patent number: 9178649
    Abstract: A method and apparatus for controlling a link margin are provided. The method includes: receiving, from a second device, a link margin frame including information about the link margin related to a communication link between a first device and the second device; and performing at least one operation selected from among a change in transmission power, a change in a modulation and coding scheme (MCS), beam forming, and a change of the communication link to another frequency band, based on the received link margin frame.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: November 3, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ho-dong Kim, Hae-young Jun, Hyuk-choon Kwon, Soo-yeon Jung
  • Patent number: 9167620
    Abstract: In order to improve utilization efficiency of communication resources in a case of acquiring a reception status at a user equipment of a radio signal upon providing LCS, an E-SMLC (40) forming a mobile communication system requests an eNB (10) to notify a result of measurement on a reception status at a UE (20) of a radio signal at least from the eNB (10) for a predetermined number of times. The E-SMLC (40) calculates a location of the UE (20) using the result of the measurement when the notification is performed for the number of times, and provides a service corresponding to the location. In response to the request, the eNB (10) instructs the UE (20) to perform the measurement for the number of times and sequentially notifies the E-SMLC (40) of the result of the measurement reported from the UE (20) for the number of times. The UE (20) performs measurement on the reception status for the number of times and sequentially notifies the eNB (10) of the result of the measurement for the number of times.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: October 20, 2015
    Assignee: NEC CORPORATION
    Inventor: Takahiro Tsutsui
  • Patent number: 9166663
    Abstract: A method for transmitting data includes mapping a first coded information bit stream intended for a first transmit antenna onto at least one first spreading sequence of a plurality of first spreading sequences to generate a first data stream, mapping a second coded information bit stream intended for a second transmit antenna onto at least one second spreading sequence of a plurality of second spreading sequences to generate a second data stream. The method also includes transmitting the first data stream and the second data stream on respective transmit antennas.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: October 20, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Alireza Bayesteh, Hosein Nikopour, Jianglei Ma
  • Patent number: 9143998
    Abstract: A base transceiver station receives first and second reception power values from a plurality of user equipments. The first reception power value is a reception power value at which a user equipment receives a radio signal from another base transceiver station without using a reception beam formation function that allows a radio signal transmitted from a predetermined direction to be selectively received with increased reception sensitivity. The second reception power value is a reception power value at which a user equipment receives a radio signal from another base transceiver station using the reception beam formation function. The base transceiver station selects, from among the plurality of user equipments, a user equipment to be handed over based on the first and second reception power values, and performs handover processing on the selected user equipment.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: September 22, 2015
    Assignee: FUJITSU, LIMITED
    Inventor: Noboru Kobayashi
  • Patent number: 9131476
    Abstract: Methods and systems for optimizing voice call setup times for user devices. A user device that is registered to a packet switched network and in an idle state receives a command to establish a voice call. The user device selects a legacy cell of a circuit switched network. The user device then establishes a radio connection with the selected legacy cell without first establishing a radio connection with a serving cell of the packet switched network.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: September 8, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Kiran K. Edara, Pratima Vallurupalli
  • Patent number: 9124342
    Abstract: A method for remotely and dynamically controlling adjacent satellite interference comprising monitoring one or more off-axis signals emitted by one or more remote transmitters; determining whether one or more of the off-axis signals is creating adjacent satellite interference (ASI), off axis emissions and inband interference that is higher than a predetermined level of acceptable interference, and transmitting a control signal to at least one of the one or more remote transmitters in response to the determination that the one or more off-axis signals is creating interference that is higher than the predetermined level of acceptable interference, the control signal initiating an adjustment to one or more transmission parameters of the one or more remote transmitters such that interference resulting from the one or more off-axis signals emitted by the one or more remote transmitters is reduced or eliminated.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: September 1, 2015
    Assignee: Comtech EF Data Corp.
    Inventors: Michael Beeler, Jeffery Harig, Wallace Davis, Frederick Morris, Cris Mamaril
  • Patent number: 9100924
    Abstract: Optimal transmit power control is performed on each of a periodic SRS and an aperiodic SRS. In a radio communication system in which a mobile station apparatus 1 transmits a first reference signal or a second reference signal to a base station apparatus 3, the base station apparatus 3 notifies the mobile station apparatus 1 of a first parameter used for setting of a transmit power for transmission of the first reference signal, and a second parameter used for setting of a transmit power for transmission of the second reference signal, and the mobile station apparatus 1 sets the transmit power for transmission of the first reference signal using the first parameter, while setting the transmit power for transmission of the second reference signal using the second parameter.
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: August 4, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shoichi Suzuki, Wataru Ouchi, Daiichiro Nakashima
  • Patent number: 9088346
    Abstract: A method of providing a recovery channel for a common transmission network of remote devices comprising encoding data that contains information about a primary carrier signal, modulating the encoded information, spreading, the modulated encoded information such that a secondary carrier signal results, combining, the spread secondary carrier with the primary carrier signal such that the spread secondary carrier signal occupies at least a portion of a bandwidth of the bandwidth pool, transmitting the combined primary and secondary carrier signals across a communications link having a plurality of remote carrier signals also being transmitted across the communications link to a remote receiver and sharing a same bandwidth pool (or multiple bandwidth pools), and reestablishing the communications link with the primary carrier signal after a loss of the communications link using the information about the primary carrier signal contained in the secondary carrier signal to recover one or more network configuration pa
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: July 21, 2015
    Assignee: Comtech EF Data Corp.
    Inventors: Michael Beeler, Wallace Davis, Randall Remillong, Jason McCollum
  • Patent number: 9083500
    Abstract: Hybrid ARQ is employed in a multi-carrier communication system for retransmission of erroneous packets by taking advantage of time/frequency/space diversity and by combining ARQ functions at physical layer and MAC layers, making the multi-carrier system more robust in a high packet-error environment.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: July 14, 2015
    Assignee: Neocific, Inc.
    Inventors: Xiaodong Li, Haiming Huang, Titus Lo, Kemin Li
  • Patent number: 9077471
    Abstract: There are provided a code division multiplexing method as well as a transmitting device and a receiving device using the method. The method performs code division multiplexing of a plurality of signals by using a code matrix, the code matrix comprising a plurality of code words, the number of which is the same as the number of the plurality of signals, with each code word comprising a plurality of chips, the method comprising: multiplying each signal of the plurality of signals by each chip of a corresponding code word respectively; and calculating a sum of products of the respective chips in each code word and the corresponding signals to form a plurality of multiplexed signals, wherein, corresponding chips of the respective code words constitute multiple sets of chips, and only one term in differences or sums of any one set of chips and one set of chips among other sets of chips is not zero.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: July 7, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Zhi Zhang, Ming Xu, Masayuki Hoshino, Daichi Imamura
  • Patent number: 9071664
    Abstract: Techniques for securely and adaptively delivering multimedia content are disclosed in which a set of alternate access units for each time slot is obtained. Then, the encryption stream index of each access unit from the set of alternate access units of the previous time slot are obtained. An encryption stream index is then assigned to each access unit in the set of alternate access units in the current time slot, such that the encryption index increases over time. Thus, the invention overcomes the problem of encrypting a multimedia stream that may have multiple access units for each time slot by selecting the encryption index for each access unit such that the encryption index increases, regardless of which access unit the delivery system (e.g., server) selects for transmission.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: June 30, 2015
    Assignee: International Business Machines Corporation
    Inventors: Lisa D. Amini, Pascal Frossad, Chitra Venkatramani, Olivier Verscheure, Peter Westerink
  • Patent number: 9064216
    Abstract: In general, techniques are described for automatically identifying likely faulty components in massively distributed complex systems. In some examples, snapshots of component parameters are automatically repeatedly fed to a pre-trained classifier and the classifier indicates whether each received snapshot is likely to belong to a fault and failure class or to a non-fault/failure class. Components whose snapshots indicate a high likelihood of fault or failure are investigated, restarted or taken off line as a pre-emptive measure. The techniques may be applied in a massively distributed complex system such as a data center.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 23, 2015
    Assignee: Juniper Networks, Inc.
    Inventors: Rajeshekar Reddy, Harshad Bhaskar Nakil
  • Patent number: 9059780
    Abstract: A nodal division multiple access technique for multiple access to a communications channel such as a satellite transponder. The present invention provides multiple access into a communications channel where each accessing site utilizes one signal from a composite amplitude/phase digital signal constellation, such that demodulators receive the composite signal without changes in the system design related to the multiple access operation.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: June 16, 2015
    Assignee: The DIRECTV Group, Inc.
    Inventors: John P. Godwin, Ernest C. Chen
  • Patent number: 9014111
    Abstract: A multi-blocks radio access method is provided and includes the following steps. A plurality of resource blocks are grouped into a plurality of groups. One resource block is respectively selected from the groups to form a plurality of resource block sets. Data to be accessed are transmitted in corresponding one of the resource block sets. A code division multiplexing code sequence is determined for the corresponding one of the resource block sets according to at least one of a plurality of parameters. Encoding or decoding operations are performed on the data to be accessed according to the corresponding one of the resource block sets and the corresponding code division multiplexing code sequence. The encoded or decoded data is accessed. A transmitter module and a receiver module using the foregoing method are also provided.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: April 21, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Tzu-Ming Lin, Chien-Min Lee
  • Patent number: 9014236
    Abstract: A method for performing joint detection includes adjusting a ranking order of codes in a matched filtering result, and a ranking order of column vectors in a system submatrix according to the power. The joint detection is performed using an adjusted matched filtering result and an adjusted system submatrix, and acquires demodulated signals corresponding to the codes. The codes that have high power will be demodulated first. This ensures accuracy of demodulation, inhibits erroneous propagation effect, and improves accuracy of the joint detection.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: April 21, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Zhixun Tang, Xie Li, Liping Zhang
  • Patent number: 9008201
    Abstract: When a UE (12) is configured with MF-HSDPA and HARQ-ACK information associated with cells (14, 16) (characterized by potentially different downlink timing) is jointly encoded, only part of the existing Rel-9 HARQ-ACK codebook is reused. In one embodiment, only the codebook conflict arising from reuse of encodings is resolved. This is achieved by introducing a new codeword for at least one of the HARQ-ACK code words that are used multiple times in the existing Rel-9 codebook. In another embodiment, all codewords in the Rel-9 HARQ-ACK codebook having a Hamming distance smaller than a predetermined value (but not all codewords) are replaced. In yet another embodiment, all codewords in the Rel-9 HARQ-ACK codebook having a Hamming distance smaller than a predetermined value (but not all codewords) that would cause ambiguity at the NodeB receiver (i.e. where the interpretation of the HARQ-ACK information for one cell (14) depends on the number of streams transmitted at the other cell (16)) are replaced.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: April 14, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Johan Hultell, Peter von Wrycza
  • Patent number: 9002364
    Abstract: A system, method and computer-readable medium for allocating multiple subscriptions to a single mobile terminal thereby allowing concurrent termination of multiple calls at the mobile terminal are provided. A mobile terminal adapted to terminate multiple concurrent calls is described. In one implementation, a network need not have any configuration data regarding the multi-line capabilities of the mobile terminal. In other implementations, network-centric mechanisms are provided for allowing multiple concurrent calls to be terminated by a mobile terminal. Multiple concurrent calls may be terminated at a mobile terminal on separate carrier frequencies or alternatively may be terminated on a common carrier frequency.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: April 7, 2015
    Assignee: Tango Networks, Inc.
    Inventors: Andrew Silver, Douglas J. Bartek
  • Patent number: 9002359
    Abstract: A mobile station measures a pseudonoise (PN) offset and a signal strength of a spread spectrum signal transmitted by a given sector of a spread spectrum communication system. The measured PN offset differs from a nominal PN offset of the given sector. The mobile station transmits a measurement message that includes the measured PN offset and the measured signal strength. The spread spectrum communication system receives the measurement message and determines a location associated with the mobile station (e.g., based on location coordinates included in the measurement message). The spread spectrum communication system determines the nominal PN offset of the given sector based on the measured PN offset and the location associated with the mobile station. If the given sector is a valid handoff destination, the spread spectrum communication system transmits to the mobile station a handoff instruction that identifies the given sector by the measured PN offset.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: April 7, 2015
    Assignee: Sprint Spectrum L.P.
    Inventors: Sachin R. Vargantwar, Maneesh Gauba, Maulik K. Shah, Anoop K. Goyal
  • Patent number: 9001684
    Abstract: A method, computer program product, and system are provided for computing link supportability in a WCDMA communications system. For example, the method can be used to calculate link supportability of a transponder in satellite communications system (e.g. MUOS) in a user-to-base direction. This method can include expressing a carrier signal to noise ratio spectral density for a communication link of interest in terms of a transponder input power of the communication link of interest, a spectral overlap factor representative of one or more interfering communication links, and a transponder input power of the one or more interfering communication links. Assumptions and approximations can be made to simplify the spectral density expression in order to reduce a dimensionality of terms used in the computation of the expression. As such, in reducing dimensionality, the expression becomes a manageable computation for WCDMA communication systems to evaluate.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: April 7, 2015
    Assignee: The MITRE Corporation
    Inventor: James Wade Marshall
  • Patent number: 8995924
    Abstract: A method for configuring gain factors in a WCDMA telecommunication system is provided in which the gain factor for defining power required for normal reception of uplink data in an environment supporting an uplink service over an E-DCH can be configured using minimal signaling information. First gain factors for first TFs corresponding to a part of a TF set including a plurality of TFs available for an uplink service are received. One of the first TFs is determined as a reference TF for a second TF other than the first TFs in the TF set. Then, a second gain factor for the second TF is calculated using the first gain factor for the determined reference TF. The second gain factor is used for transmitting or receiving uplink data.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: March 31, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youn-Hyoung Heo, Ju-Ho Lee, Yujian Zhang, Joo-Young Cho, Young-Bum Kim, Yong-Jun Kwak
  • Patent number: 8989036
    Abstract: Method and arrangement in a base station for providing an input parameter in an algorithm for predicting uplink load in a cell in a wireless communication system. The cell comprises at least one user equipment. The method comprises obtaining SIR target value associated with the user equipment, measuring SIR value on a signal sent from the user equipment, comparing the difference between the obtained SIR target value and the measured SIR value with a threshold limit value, selecting the SIR value as input parameter in the uplink load prediction algorithm for the user equipment, if the difference between the obtained SIR target value and the measured SIR value is bigger than the threshold limit value. Otherwise selecting the SIR target value as input parameter in the uplink load prediction algorithm for the user equipment.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: March 24, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Stephen Craig, Torbjörn Wigren
  • Publication number: 20150078250
    Abstract: When multiple communication terminals access a base station in CDMA in which transmission signals are spread with orthogonal codes, the orthogonal codes in CDMA signals transmitted from the communication terminals are synchronized on the communication path. The communication terminals each include an information acquirer acquiring reference time information common to the multiple communication terminals, a transmission time generator generating a chip clock on the basis of the time information, an orthogonal code generator generating orthogonal codes in time with the timing of the chip clock, a CDMA spreader spreading transmission signals with the orthogonal codes to generate code division multiple access signals, a carrier wave generator generating a carrier wave, and a BPSK modulator modulating the carrier wave generated by the carrier wave generator with the code division multiple access signals and transmitting the carrier wave.
    Type: Application
    Filed: July 9, 2013
    Publication date: March 19, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Nobuyuki Mineta, Hiroyuki Sato, Seiya Inoue
  • Patent number: 8982848
    Abstract: The present invention relates to transmitting a downlink reference signal in a wireless communication system. A method for a base station to transmit a downlink signal by using two or more layers includes multiplexing and transmitting a reference signal for the two or more layers on the basis of a reference signal pattern on a data region of a downlink subframe and transmitting data for the two or more layers on the data region of the downlink subframe, wherein the reference signal for the two or more layers is a dedicated reference signal that is used to demodulate the data for the two or more layers on a receiving end, and in the multiplexing of the reference signal, the reference signal for the two or more layers is code-division-multiplexed by an orthogonal code having a length of at least 2.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: March 17, 2015
    Assignee: LG Electronics Inc.
    Inventors: Hyun Soo Ko, Jae Hoon Chung, Bin Chul Ihm, Moon Il Lee
  • Patent number: 8964716
    Abstract: A method of transmitting an RF signal over a wireless communication network is provided. The method comprises determining a respective weighting factor for each of a plurality of digital signals each corresponding to a respective channel, the weighting factors weighting the digital signals to produce a composite signal intended for transmission as an RF signal via a power amplifier. The method further comprises executing instructions on a processor to dynamically calculate a metric related to the non-linearity of the power amplifier's transfer characteristics for the composite signal using the determined weighting factors. The method further comprises supplying to the power amplifier a signal for transmission as an RF signal and amplifying the signal for transmission at the power amplifier to transmit an RF signal over the wireless communication network via at least one antenna. The method further comprises controlling the transmission based on the metric related to the amplifier non-linearity.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: February 24, 2015
    Assignee: Icera Inc.
    Inventors: Phil Jones, Carlo Luschi, Abdelkader Medles, Donal Price
  • Patent number: 8958456
    Abstract: A composite wireless device including a WLAN device and a BT device. The composite wireless device includes a wireless-channel control unit that determines usable FH channels that can be used for frequency hopping of the BT device, based on communication quality information of the WLAN channel, and notifies the BT device of the usable frequency bands, and a BT-communication control unit that acquires communication quality information of an extended frequency band, which is a frequency band other than the usable frequency bands, as extended communication quality information. The wireless-channel control unit adds the FH channels in the WLAN channel, which are determined as being unused based on the extended communication quality information, as the usable FH channels.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: February 17, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yukimasa Nagai
  • Patent number: 8948705
    Abstract: In one aspect of a multiple-access OFDM-CDMA system, data spreading is performed in the frequency domain by spreading each data stream with a respective spreading code selected from a set of available spreading codes. To support multiple access, system resources may be allocated and de-allocated to users (e.g., spreading codes may be assigned to users as needed, and transmit power may be allocated to users). Variable rate data for each user may be supported via a combination of spreading adjustment and transmit power scaling. Interference control techniques are also provided to improve system performance via power control of the downlink and/or uplink transmissions to achieve the desired level of performance while minimizing interference. A pilot may be transmitted by each transmitter unit to assist the receiver units perform acquisition, timing synchronization, carrier recovery, handoff, channel estimation, coherent data demodulation, and so on.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: February 3, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Jay R. Walton, John W. Ketchum, Steven J. Howard, Mark Wallace
  • Patent number: 8923459
    Abstract: In a wireless modem which comprises a first receiver and a second receiver it is detected whether or not user data transmission is taking place. If user data transmission is detected, a second channel quality value is continuously estimated using the second receiver. If no user data transmission is detected, the second receiver is shut off, a first channel quality value is continuously estimated using the first receiver, and the second channel quality value of the second receiver is continuously estimated using the first channel quality value estimated by the first receiver.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: December 30, 2014
    Assignee: Broadcom Corporation
    Inventors: Janne Ari Olavi Aula, Mads Hintz-Madsen
  • Patent number: 8917664
    Abstract: A method and an apparatus for deactivating secondary carriers in a mobile communication system using carrier aggregation are provided. A communication method, for a User Equipment (UE), includes activating a secondary carrier, starting a first timer upon activation of the secondary carrier, starting a second timer when the first timer expires, and deactivating the activated secondary carrier when the second timer expires.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: December 23, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jaehyuk Jang, Soenghun Kim
  • Patent number: 8918099
    Abstract: A method and system is disclosed enabling deconfliction between a ground-based radio and an airborne radio while both radios are in wireless data communication with a ground-based cellular network via the same ground-based connection node or tower. An orthogonal plurality of time/frequency segments is divided into a ground group of segments and an air group of segments by dynamically placing a frequency barrier between the two groups. Through dynamic allocation between groups and between the plurality of time/frequency segments within each group, interference free communication may coexist while both radios are wirelessly connected to the same tower. Additionally, an uplink (from airborne radio to tower) frequency may be moved to a second, distant frequency band to deconflict with the uplink and downlink first frequency band allotted to the ground-based radio while the downlink from tower to airborne radio remains within the first frequency band.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: December 23, 2014
    Assignee: Rockwell Collins, Inc.
    Inventor: James P. Mitchell
  • Patent number: 8914024
    Abstract: A method and application for mobile phone users provides an ability to discover personal attributes including photo of other individuals in vicinity covered by a short range wireless network, such as Bluetooth or similar signals operating in a wireless free spectrum, such as WiFi. The users can elect to exchange, send or receive contact information with ones that are in the vicinity that includes photos.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: December 16, 2014
    Assignee: Ximoxi, Inc.
    Inventor: Ramzi Alharayeri
  • Patent number: 8909185
    Abstract: A method of providing frequency dependent signal attenuation. An RF input signal is split into a first signal portion and a second signal portion. Discrete time filtering, a negative group delay and bandstop filtering are applied to the first signal portion to provide a filtered signal portion. The second signal portion is applied to a component, and a component output signal portion is received from the component. The component output signal portion is combined with the filtered signal portion to provide an RF output signal having frequency dependent attenuation.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: December 9, 2014
    Assignee: Rockstar Consortium US LP
    Inventor: Mark Wyville
  • Patent number: 8908669
    Abstract: Time division multiplexed input signals (i.e., separated into time slots) are spread in each time slot with a destination code. This spreading is applied for destination identification as opposed to signal information modulation. Each spreading signal is associated with a particular destination for a particular time slot. These spread signals are then combined on a code division bus. Output signals for retransmission to the destinations are recovered from the bus by application of despreading codes. Each despread signal has a destination code which appears in its individual time slot. In a variant code division multiplexed signals are directed to a destination by use of time slot interchanger to achieve time division switching to route the CDMA multiplexed channels.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: December 9, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventor: Diakoumis Parissis Gerakoulis
  • Patent number: 8902741
    Abstract: Embodiments of user equipment and methods for reducing delay in a radio-access network (RAN) are generally described herein. Embodiments disclosed herein provide enhancements that may be applicable to a 3GPP LTE RAN for reducing delay that may be particularly beneficial for real-time over-the-top (OTT) applications. Some embodiments provide for an uplink delayed buffer status report. Some embodiments provide for a downlink congestion and buffer report. Some embodiments provide for traffic characteristic based inter-UE prioritization.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: December 2, 2014
    Assignee: Intel Corporation
    Inventors: Jing Zhu, Rath Vannithamby
  • Patent number: 8902810
    Abstract: A wireless communications system employs code-division multiple access information transmission techniques where the uplink and downlink transmission bandwidths are unequal. The higher bandwidth is an integer multiple of the lower bandwidth. The present system requires a base station and a subscriber unit to have two pseudo-random code generators which can be clocked separately. Alignment of the uplink and downlink pseudo-random spreading codes is achieved by truncating the code sequence for the lower speed link at the conclusion of a complete code sequence for the higher speed link.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: December 2, 2014
    Assignee: Signal Trust for Wireless Innovation
    Inventor: Fatih M Ozluturk
  • Patent number: 8897143
    Abstract: The present invention discloses a method for monitoring Multicast Control Channel (MCCH) notification information, comprising: in a Multicast-Broadcast Single Frequency Network (MBSFN) cell that includes more than two MCCHs, when user equipment (UE) determines that the required MBMS service is not started, the UE further determines whether there is a correspondence relationship between the required MBMS service and the MCCHs, if yes, the UE just monitors the notification information of the MCCH corresponding to the required MBMS service; otherwise, the UE monitors the notification information of all the MCCHs in the MBSFN cell. The invention also discloses a device for monitoring MCCH notification information and user equipment. The present invention guarantees that the UE can timely receive an MBMS service that is not started currently in a cell with overlapped MBSFN areas.
    Type: Grant
    Filed: June 13, 2010
    Date of Patent: November 25, 2014
    Assignee: ZTE Corporation
    Inventor: Hui Xu
  • Patent number: 8891436
    Abstract: A method and apparatus for effectively facilitating grant scheduling is provided. The method may comprise transmitting, by a user equipment (UE), a grant request, wherein the grant request includes a UE power headroom (UPH) value, and receiving, from a Node B, a scheduling grant, wherein the scheduling grant is derived from the transmitted UPH.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: November 18, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Jianqiang Zhang, Mingxi Fan, Jiming Guo, Bo Chen
  • Patent number: 8885628
    Abstract: In a single-carrier frequency division multiple access (SC-FDMA) system that utilizes interleaved FDMA (IFDMA) or localized FDMA (LFDMA), a transmitter generates modulation symbols for different types of data (e.g., traffic data, signaling, and pilot) and performs code division multiplexing (CDM) on at least one data type. For example, the transmitter may apply CDM on signaling and/or pilot sent on frequency subbands and symbol periods that are also used by at least one other transmitter. To apply CDM to a given data type (e.g., signaling), the transmitter performs spreading on the modulation symbols for that data type with an assigned spreading code. CDM may be applied across symbols, samples, samples and symbols, frequency subbands, and so on. The transmitter may perform scrambling after the spreading. The transmitter generates SC-FDMA symbols of the same or different symbol durations for traffic data, signaling, and pilot and transmits the SC-FDMA symbols.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: November 11, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Ravi Palanki, Aamod Khandekar, Arak Sutivong
  • Patent number: 8885743
    Abstract: A method of transmitting a control signal in a wireless communication system includes allocating a first sequence to spread a first control signal in a radio resource, allocating a second sequence to spread a second control signal in the radio resource, selecting one of the first control signal and the second control signal, generating a spread control signal by spreading the selected control signal, and transmitting the spread control signal in the radio resource, wherein the first sequence and the second sequence use different cyclic shifts of a base sequence.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: November 11, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jin Sam Kwak, Seung Hee Han, Min Seok Noh, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim
  • Patent number: 8873605
    Abstract: A method for estimating a scrambling code used on an uplink of a WCDMA system. The scrambling code is obtained from a Gold code, sum of a first specific M-sequence of the user and of a second M-sequence known from the receiver. After sampling of the signal received at the chip frequency of the scrambling code, the successive samples are subject to a differential treatment and the sequence of differential values is multiplied by the second M-sequence. The observables thereby obtained are decoded with the aid of a belief propagation iterative decoding. The decoded values then serve to determine the content of the shift register of the generator of the first M-sequence. One then deduces therefrom the Gold code and an estimation of the scrambling code, ?.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: October 28, 2014
    Assignee: Commissariat à l'énergie atomique et aux énergies alternatives
    Inventor: Mathieu Bouvier des Noes
  • Patent number: 8868087
    Abstract: Radio access interworking technologies allow a target network to notify a source network that a mobile device has moved from source network to target network, wherein mobile device does not need to perform notification to source network. Further, source network can provide a first subset of overhead information to mobile device and, after moving to target network, mobile device can receive a second subset of overhead information from target network. Further, mobile device can perform prehashing prior to moving to target network based on a channel list received from source network.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: October 21, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: George Cherian, Masakazu Shirota, Jun Wang, Arvind Swaminathan, Srinivasan Balasubramanian, Parag A. Agashe, Ravindra M. Patwardhan, Osok Song, Peerapol Tinnakornsrisuphap, Shyamal Ramachandran
  • Patent number: 8867440
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus maintains at least one PHR trigger for triggering communication of a PHR for a plurality of component carriers. In addition, the apparatus communicates the PHR for at least one of the component carriers upon the at least one PHR trigger being triggered. The communicated PHR may be an aggregated PHR that includes power headroom information on the PCC and activated SCCs. The communicated PHR may further include an index associating information in the PHR to a corresponding component carrier. The communicated PHR may further include information indicating use of a PUSCH reference for computing the PHR for the at least one of the component carriers on which there is no PUSCH transmission.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: October 21, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Sai Yiu Duncan Ho, Jelena M. Damnjanovic, Aleksandar Damnjanovic, Wanshi Chen, Peter Gaal
  • Patent number: 8861657
    Abstract: The present disclosure provides a frequency offset compensation technique for use by a multi-carrier receiver. Compared with legacy receiver designs, the technique introduces a new function which correlates various frequency offsets of the different carriers involved in multi-carrier signal transmission and reception. This new function can be coupled with an Automatic Frequency Control (AFC) function which can then utilize the correlation information provided by the new function to achieve significantly better frequency error/offset estimation when the carriers are correlated.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: October 14, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Thomas Nilsson, Amit Singh
  • Patent number: 8861431
    Abstract: An apparatus and method for mixed signal spread spectrum receiving and spectrum aggregation in a receiver having at least one antenna respectively receiving at least one signal are provided. The method includes modulating the at least one signal received by the receiver with at least one unique orthogonal pseudorandom (PN) code, downconverting the at least one modulated signal into at least one baseband signal, combining the at least baseband signal into an overlaid baseband signal and filtering the overlaid baseband signal, converting the overlaid baseband signal from an analog signal into a digital baseband signal, splitting the digital baseband signal into a plurality of signal paths each having the entirety of the digital baseband signal, applying one of the at least one unique orthogonal PN code to each of the plurality of signal paths, and multiplexing the plurality of signal paths into a combined digital baseband signal.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: October 14, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Lup Meng Loh, Michael L. Brobston
  • Patent number: RE45203
    Abstract: An apparatus and method for transmitting/receiving data in a mobile communication system using multiple antennas are provided. A receiver estimates a fading channel of received data, selects a weight set relative to a maximum data transmission rate from at least one weight set with elements of a plurality of orthogonal weight vectors, and transmits feedback information including the selected weight set and channel-by-channel state information to a transmitter. The transmitter demultiplexes data to be transmitted on a basis of the feedback information into at least one sub-data stream, multiplies each sub-data stream by an associated weight, and transmits the data.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: October 21, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Kyu Han, Dae-Gyun Kim, Hwan-Joon Kwon, Dong-Hee Kim, Youn-Sun Kim, Yu-Chul Kim, Cheol Mun
  • Patent number: RE45236
    Abstract: A system and method are described for binding together a plurality of wireless data communications channels, whereby an aggregate throughput improvement is realized. A master channel amongst the channels to be bound is compatible with existing standards-based wireless data communications equipment. The master channel serves to perform MAC association and flow control. Aggregate throughput is improved by sending and receiving either multiple sets of separately encoded packets, commonly encoded packets or redundantly encoded packets.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: November 11, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Paul J. Husted, William J. McFarland, Jeffrey M. Gilbert
  • Patent number: RE45505
    Abstract: The present invention provides a method and apparatus for localization of a mobile device in a distributed antenna communications system. In accordance with an embodiment of the invention, a distributed antenna system includes a plurality of distributed antennas that are communicatively coupled to a hub. A mobile communications device to be located is communicatively coupled to the hub via one or more of the antennas. The method for locating the mobile device comprises: receiving a message at the hub that identifies the mobile device to be located; discriminating among communications signals received from each of the distributed antennas using a channel and a spreading code to identify a signal from the mobile device; identifying messages from the mobile device to be located; and determining which of the antennas is closest to the mobile device to be located by monitoring received signal strength of the identified signal.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: May 5, 2015
    Assignee: ADC Telecommunications, Inc.
    Inventors: Stefan Scheinert, Peter Walther