Optimum Frequency Selection Patents (Class 455/62)
  • Patent number: 10681710
    Abstract: A method includes determining, at an access point, that a channel used to communicate with a device is experiencing interference. The method also includes, in response to the access point detecting that the channel used to communicate with the device is experiencing interference, switching, at the access point to a second channel. The second channel is selected from available channels associated with a set of candidate frequency bands. The set of candidate frequency bands is selected based on a signal quality of a particular device in communication with the access point. The particular device is a communication device in communication with the access point that has a lowest signal quality of signal qualities of communication devices in communication with the access point.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: June 9, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Feng Wang, David R. Wolter
  • Patent number: 10637439
    Abstract: A multiplexer (1) includes a plurality of filters connected to a common terminal (110). The multiplexer (1) includes: a low-frequency filter (11L) that is formed of at least one surface acoustic wave resonator arranged between the common terminal (110) and the input/output terminal (120) and has a first pass band; a high-frequency filter (12H) that is connected between the common terminal (110) and the input/output terminal (130) and has a second pass band located at a higher frequency than the first pass band; and a capacitor (CB1) that is serially arranged in a connection path between the common terminal (110) and the low-frequency filter (11L). The Q value of the capacitor (CB1) in the second pass band is higher than the Q value in the second pass band of a capacitance obtained by treating the at least one surface acoustic wave resonator of the low-frequency filter (11L) as a capacitance.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: April 28, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Koji Nosaka
  • Patent number: 10631306
    Abstract: A spectrum management system to allocate frequencies in a plurality of wireless communication systems in geographical proximity includes a spectrum manager to allocate a pool of frequencies among the wireless communication systems. Each system is allocated a set of frequencies for selecting on which frequency to operate with at least one of the sets of frequencies including more than one frequency, and at least two of the allocated sets different from each other. The system additionally includes a database to store and organize information used by the spectrum manager to perform the allocation.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: April 21, 2020
    Assignee: AMIMON LTD.
    Inventor: Ron Yogev
  • Patent number: 10595310
    Abstract: Disclosed herein are a method and apparatus for sending and receiving data in a wireless communication system. More specifically, a method for sending and receiving, by UE, data in an unlicensed band in a wireless communication system may include performing blind detection for detecting a predetermined specific signal transmitted by an eNB in a cell of an unlicensed band and determining a period in which the signal is detected through the blind detection to be a reserved resource period (RRP) which is a time period secured for the transmission and reception of data in the cell of the unlicensed band.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: March 17, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Jonghyun Park, Joonkui Ahn, Hanbyul Seo, Seungmin Lee, Yunjung Yi
  • Patent number: 10588073
    Abstract: A wireless communication apparatus comprises: a search unit that searches, by using a plurality of frequency bandwidths, for an access point to perform wireless communication; a display unit that displays, based on pieces of predetermined information corresponding to a plurality of access points detected by a search, display items corresponding to the pieces of predetermined information; and a processing unit that performs, when the display items are displayed and a user selects one of the display items, connection processing to an access point specified by the selection of the display item, wherein when a display item corresponding to a first access point and a second access point is selected, the processing unit performs the connection processing to an access point that satisfies a predetermined condition, among the first access point and the second access point.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: March 10, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tokiko Watanabe
  • Patent number: 10536936
    Abstract: A method of control information transmission for a terminal in a mobile communication system, and an apparatus therefor are provided. In the method of control information transmission, the terminal acquires unlicensed frequency channel occupancy information based on the control information received from a base station and transmits the unlicensed frequency channel occupancy information to other terminals operating on the same unlicensed frequency. The method of control information transmission includes receiving a first control information from a base station using a first radio communication protocol, acquiring channel occupancy information based on the first control information, and transmitting a second control information including the channel occupancy information to another terminal using a second radio communication protocol.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: January 14, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Suyoung Park, Suha Yoon, Euichang Jung, Sunghyuk Shin
  • Patent number: 10524215
    Abstract: The present disclosure relates to an electronic device in a wireless communication system, and a wireless communication method. The electronic device at a user equipment side, according to the present disclosure, performs a device-to-device (D2D) communication with a target user equipment, and the electronic device comprises: a path loss reporting unit configured to acquire the path loss between the electronic device and the target user equipment and report information about the path loss to a base station device; and a power determination unit configured to acquire information about a first power parameter from the base station device, wherein the first power parameter is related to the path loss; and is configured to determine a D2D transmission power for performing D2D communication between the electronic device and the target user equipment based on the first power parameter.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: December 31, 2019
    Assignee: Sony Corporation
    Inventor: Yuxin Wei
  • Patent number: 10484879
    Abstract: Various aspects of the disclosure relate to wireless communication that is synchronized across different wireless communication spectrum. For example, communication on an unlicensed spectrum may, in response to a particular trigger, switch to a licensed spectrum. Here, the switch may occur in a time synchronized manner (e.g., according to a frame structure). In addition, communication across such spectrum may be synchronized among multiple systems. For example, a controller may specify a reuse pattern to be used by the different systems for communication across unlicensed spectrum and licensed spectrum.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: November 19, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Karl Georg Hampel, Chong Li, Junyi Li
  • Patent number: 10448410
    Abstract: A method is shown for allocating a plurality of channels to a plurality of radio nodes (RNs) in a radio access network (RAN). In accordance with the method, an initial RN is selected from among the plurality of RNs. A first of the plurality of channels is assigned to the initial RN. The first channel is selected such that external interference experienced by the initial RN from sources other than the RAN on the first channel is minimized. A second RN is selected from among the plurality of RNs. A second of the plurality of channels is assigned to the second RN. The second channel is selected such that a metric reflective of an information carrying capacity of the RNs that have already been assigned one of the plurality of channels is maximized. The assigned channels are allocated to the respective RNs to which they have been assigned.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: October 15, 2019
    Assignee: Corning Optical Communications LLC
    Inventors: Tsung-Yi Chen, Hithesh Nama, Jaspreet Singh
  • Patent number: 10404339
    Abstract: The described technology is generally directed towards reducing the complexity for finding the precoding matrix index/rank information channel state information in New Radio wireless systems. Described is using the beam characteristics of X1 (wideband component index) and X2 (subband component index) such that a user equipment first determines a best chosen X2 for only one X1 index. Thereafter, the user equipment uses the chosen index of X2 for the other X1 indices, thereby reducing the complexity of the precoding matrix index/rank information search by reducing the search space in the codebook, which reduces the number of computations at the user equipment side without significantly impacting the performance.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: September 3, 2019
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: SaiRamesh Nammi, Arunabha Ghosh
  • Patent number: 10397040
    Abstract: A dynamic broadcast system and a spectrum management device for use in a dynamic broadcast system. A dynamic white space database unit stores and dynamically updates a dynamic white space database of frequency resources that are assigned for broadcasting broadcast content but can locally not be used for broadcasting. One or more white space devices can access the frequency resources included in the dynamic white space database. A spectrum server dynamically manages the frequency resources included in the dynamic white space database for access by the one or more white space devices.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: August 27, 2019
    Assignee: Sony Corporation
    Inventors: Ulrich Reimers, Piotr Palka, Markus Bremer
  • Patent number: 10355809
    Abstract: A Channel State Information (CSI) feedback method and a User Equipment (UE) are disclosed. The method comprises the following steps of: determining a set of coordinated Base Stations (BSs) participating multi-BS coordination, the set of coordination BSs containing a serving BS and at least one non-serving BS; for each BS in the set of coordinated BSs: calculating a Signal to Interference and Noise Ratio (SINR) for a channel between a UE and the BS based on a hypothetical BS coordination mode corresponding to the BS; and deriving a Channel Quality Index (CQI) corresponding to the calculated SINR and feeding back the derived CQI to the serving BS.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: July 16, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Ming Ding, Lei Huang, Zeng Yang, Renmao Liu
  • Patent number: 10356552
    Abstract: Systems and methods for determining hardware requirements for a wireless network event are disclosed. In embodiments, a method comprises obtaining, by a computing device, social user data over a period of time from a plurality of mobile devices associated with a social event at a location; obtaining, by the computing device, bandwidth usage data for each of the plurality of mobile devices based on the social user data; obtaining, by the computing device, crowd density and traffic pattern data related to the social event; determining, by the computing device, participant movement data for the social event based on the crowd density and traffic pattern data; deriving, by the computing device, a social bandwidth density model based on the bandwidth usage data and the participant movement data; and determining, by the computing device, bandwidth requirements within a geo-spatial boundary associated with the social event from the social bandwidth density model.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: July 16, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kelley Anders, Jeremy R. Fox, Jonathan Dunne, Liam S. Harpur
  • Patent number: 10277262
    Abstract: A communication module includes a first input terminal to which a first signal of a first frequency band is input, a second input terminal to which a second signal of a second frequency band is input, an amplifier that outputs an amplified signal which is obtained by amplifying the first signal, a diplexer that receives the amplified signal and/or the second signal and that outputs an output signal of the first and/or second frequency band, and a harmonic termination circuit that short-circuits a harmonic of the second signal. The harmonic termination circuit has an end connected between the second input terminal and the diplexer, and another end grounded at a ground position. A distance in plan view between the first input terminal and the ground position of the harmonic termination circuit is longer than a distance in plan view between the first input terminal and the second input terminal.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: April 30, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Ken Kishimoto
  • Patent number: 10237003
    Abstract: Provided is a channel communication quality estimating method of a wireless communication technology. A method for estimating a channel communication quality of a second wireless communication technology whose frequency band entirely or partially overlaps a frequency band of a first wireless communication technology includes: transmitting predetermined data to an external device through each of a plurality of first channels which forms a frequency band of the first wireless communication technology; generating a channel map which represents a communication quality for each of the plurality of first channels based on a data transmission result through each of the plurality of first channels; and calculating a communication quality index for each of a plurality of second channels which forms a frequency band of the second wireless communication technology, based on the channel map.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: March 19, 2019
    Assignee: Korea University Research and Business Foundation
    Inventors: Hwangnam Kim, Woonghee Lee
  • Patent number: 10194328
    Abstract: Generation and use of geographic databases of frequency spectral information within an operating frequency band. Described herein are methods of making databases of geospectral information and using these databases to optimize performance of wireless networks. For example, a network of wireless radio devices that monitor the frequency spectrum of the operating frequency band may provide this geographically marked information to a central database to create a database of geospectral frequency information. This geospectral frequency information may be used to characterize, optimize or modify a network of wireless radio device, or to modify an individual wireless radio device.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: January 29, 2019
    Assignee: Ubiquiti Networks, Inc.
    Inventors: Sriram Dayanandan, Vish Ponnampalam
  • Patent number: 10182344
    Abstract: Embodiments are directed towards collecting information regarding the implementation of dynamic frequency selection and automatic channel selection by one or more wireless communication devices using the U-NII radio band. And to use the collected information to determine if other communication devices are coupled to communicate with each other via a wireless connection or a wired connection, or to modify the automatic channel selection mechanism used by one or more wireless communication devices.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: January 15, 2019
    Assignee: DISH Technologies L.L.C.
    Inventors: Francis Nafe, Christopher William Bruhn
  • Patent number: 10164619
    Abstract: A method of controlling a clock frequency of an electronic device and an electronic device using the same is provided. The electronic device includes a check module that is configured to check a clock frequency of at least one Radio Frequency (RF) band, and a control module that is configured to shift a clock frequency of a high speed signal such that a noise generation clock frequency and the clock frequency of the at least one RF band checked by the check module are not identical, when an interface of the high speed signal is used.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: December 25, 2018
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Eun-Seok Hong
  • Patent number: 10149323
    Abstract: A base station including: a memory, and a processor configured to: determine whether each random access signal is detected or not by comparing each of specified characteristics of each of radio resources prepared for each random access signal with a detection threshold, each of the specified characteristics relating to each reception power of each of the radio resources prepared for each random access signal, the radio resources being divided into first radio resources and second radio resources, the first radio resource being prepared for dedicated random access signals each transmitted from each terminal in response to each request signal transmitted from the base station, and determine the detection threshold based on each of the specified characteristics of each of unused first radio resources, each of the unused first radio resource being each of the first radio resources for which each request signal has not been transmitted from the base station.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: December 4, 2018
    Assignee: Fujitsu Limited
    Inventor: Takato Ezaki
  • Patent number: 10136330
    Abstract: Described features are directed to staggered frequency channel changing for cells of spectrum sharing networks. In some examples users communicating on one or more frequency channels of a spectrum sharing network may receive an indication that those channels are to be vacated, for example that the frequency channels are not to be transmitted on, or otherwise used for communications. Cells of the spectrum sharing network may receive the indication and perform staggered (e.g., sequential or randomly-timed) channel changes. The staggered channel changes may facilitate handover of user devices of the spectrum sharing network by, for example, reducing a number of cells that are simultaneously undergoing a channel change procedure. Thus, staggered frequency channel changing may reduce user service interruptions and radio link failures in a spectrum sharing network.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: November 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Puneet Sethi, Farhad Meshkati, Mehmet Yavuz
  • Patent number: 10122511
    Abstract: Systems and methods for automatically configuring a distributed antenna system are provided. A configuration sub-system of the distributed antenna system can identify signal parameters for downlink signals received from one or more base stations via inputs of a unit in the distributed antenna system. The configuration sub-system can automatically determine a configuration plan for the distributed antenna system based on the automatically identified signal parameters. The configuration plan specifies how to combine subsets of the downlink signals for routing to remote antenna units of the distributed antenna system.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: November 6, 2018
    Assignee: CommScope Technologies LLC
    Inventors: Van E. Hanson, Michael J. Williamson
  • Patent number: 10071605
    Abstract: A specific multi-band antenna impedance matching circuit and a tire-pressure monitoring device using same are disclosed. The antenna impedance matching circuit includes at least one first, one second and one third inductance unit and at least one first, one second and one third capacitance unit. The first capacitance unit is connected at a first end to first ends of the first and the second inductance unit and at a second end to a ground; the second inductance unit and the second capacitance unit are connected in series; the third inductance unit and the third capacitance unit are connected in parallel; and the third inductance unit is connected at a first end to a first end of the second capacitance unit and at a second end to the ground.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: September 11, 2018
    Assignee: KEYCORE TECHNOLOGY CORP.
    Inventors: Yang-Te Liang, Po-Wei Chiu, Sheng-Ruei Hsu, Wei-Cheng Lin, Chien-Jen Hsiao, Shih-Hsiu Tseng
  • Patent number: 10051556
    Abstract: Disclosed is a method for scanning for an access point. An active scan method comprises the steps of: generating a probe request frame including information on the signal strength of a terminal; and transmitting the probe request frame to an access point. Thus, a waste of time and radio resources can be prevented.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: August 14, 2018
    Assignee: KT Corporation
    Inventors: Byung Wan Yoon, Su Hwan Rim
  • Patent number: 10028256
    Abstract: [Object] To allow a wireless communication system to more appropriately use a frequency band to be shared between wireless communication of the wireless communication system and another wireless communication. [Solution] Provided is an apparatus including: an acquiring unit configured to acquire information regarding another wireless communication performed by a wireless communication apparatus using a frequency band to be shared between wireless communication of a wireless communication system and the another wireless communication, the information being provided by the wireless communication apparatus; and a control unit configured to determine an additional band available for the wireless communication of the wireless communication system in addition to a frequency band for the wireless communication system among the frequency band to be shared based on the information regarding the another wireless communication.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: July 17, 2018
    Assignee: SONY CORPORATION
    Inventor: Shinichiro Tsuda
  • Patent number: 10009149
    Abstract: Methods described herein are for wireless communication systems. One aspect of the invention is directed to a method for a HARQ process, in which the HARQ process includes a first transmission of an encoder packet and at least one retransmission. The method involves allocating a transmission resource for each respective transmission. The method involves transmitting control information from a base station to a mobile station for each respective transmission. The control information includes information to uniquely identify the HARQ process and an identification of one of a time resource, a frequency resource and a time and frequency resource that is allocated for the transmission. In some embodiments of the invention, specific control information is signalled from a base station to a mobile station to enable RAS-HARQ operation. In some embodiments of the invention, retransmission signaling in included as part of regular unicast signaling used for both first transmission and retransmissions.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: June 26, 2018
    Assignee: Apple Inc.
    Inventors: Mo-han Fong, Sophie Vrzic, Robert Novak, Jun Yuan, Dong-Sheng Yu
  • Patent number: 10003490
    Abstract: A communication system using hierarchical modulation and capable of flexibly adjusting line quality includes a transmission apparatus that hierarchically modulates and transmits signal sequences, a reception apparatus that hierarchically demodulates a received signal, and a hierarchization-parameter setting unit that sets hierarchization parameters. The transmission apparatus includes a hierarchical modulation unit that superimposes signals from layers while maintaining gray codes. The reception apparatus includes a hierarchical demodulation unit that demodulates and separates hierarchically modulated signals and detects signals from layers. The hierarchization-parameter setting unit sets a hierarchization ratio which is a signal power ratio used for superimposing a higher layer and a lower layer, a mapping pattern capable of selecting two patterns, and a mapping pattern mixing ratio indicating a ratio with which two mapping patterns are mixed.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: June 19, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Nishimoto, Akinori Ohashi
  • Patent number: 9979471
    Abstract: A method and apparatus for measuring a filtering characteristic, pre-equalizer and communication equipment. Wherein, the apparatus for measuring a filtering characteristic includes: a first measuring unit configured to measure multiple pieces of first average power of multiple first signals obtained after multiple first transmission signals pass through a transmitting end filtering module and are modulated, frequencies of the multiple first transmission signals being different; and a first processing unit configured to determine a filtering characteristic of the transmitting end according to the first average power, amplitudes of the first transmission signals and a first predefined correspondence relationship between average power of signals after passing through the transmitting end filtering module and being modulated and a product of amplitudes of the signals and the filtering characteristic of the transmitting end.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: May 22, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Zhenning Tao, Yangyang Fan, Liang Dou
  • Patent number: 9929839
    Abstract: An embodiment of the present invention is disclosed including a method for adaptive reception, the method. The method includes receiving, by a user equipment (UE), an indicator from a first component carrier, the indicator indicating whether a second component carrier is in the On state. Receiving, by the UE, from the second component carrier a subframe wherein a reference signal is provided at a first symbol position of the subframe in a majority of subcarriers of the subframe. The second component carrier and the UE are then synchronized based on the reference signals. The UE then initiates a data link with the second component carrier.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: March 27, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Jialing Liu, Weimin Xiao, Qian Cheng
  • Patent number: 9907085
    Abstract: A method includes detecting, using a WiFi access point, channel use data indicating traffic on a plurality of channels of an unlicensed LTE band in a wireless network. The method further includes providing the channel use data to a Long Term Evolution (LTE) access point. The method further includes selecting, using the LTE access point, a channel for use in transmitting data by the LTE access point from among the plurality of channels based on the channel use data from the WiFi access point. The method further includes providing, from the LTE access point, an indication of an upcoming transmission configured to transmit data on the channel to the WiFi access point. The method further includes broadcasting one or more messages from the WiFi access point to one or more WiFi nodes, the one or more messages configured to prevent the WiFi nodes from transmitting on the channel.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: February 27, 2018
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Yong Li, Guy Drory, Yonatan Cohen, Baoguo Yang, Matthew Fischer, Sharon Levy, Sindhu Verma, Shubhodeep Adhikari
  • Patent number: 9882812
    Abstract: A plurality of nodes in a first network mitigate data restrictions on access points which are an interface between the first network and a second network. The access points advertise their access parameters to the second network to the nodes. The nodes maintain a list of the advertised access parameters of each access point. The nodes determine whether to transmit data to the second network according to a first transmission mode or a second transmission mode based on the data to be transmitted and the list of access parameters maintained by that node. In the first transmission mode, the node determines to transmit the data to a first access point having a lowest cost with that node. In the second transmission mode, the node determines to transmit the data to a second access point having fewer access restrictions to the second network than the first access point.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: January 30, 2018
    Assignee: SILVER SPRING NETWORKS, INC.
    Inventors: Elad Gottlib, Dorothy Gellert
  • Patent number: 9877202
    Abstract: Methods and apparatuses are described herein for providing a victim database discovery procedure. The victim database discovery procedure may be guided by an initial list of potential victim databases that may be defined by physical properties such as the geographic or regional relationships of the areas that may be protected by each database. Exchange procedures are disclosed in which incumbent information between two databases is exchanged. Also described herein are exchanges of information between databases whereby a querying database may receive restrictions on associated operating parameters of Cognitive Radio Systems (CRSs) under their control in an area. Further, a procedure is described herein by which a database that receives a request for shared spectrum from a CRS may first forward the request to a neighboring or victim database to determine the allowable channels and then may make the actual allocation based on this information and its own incumbents.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: January 23, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Martino M. Freda, Pekka Ojanen
  • Patent number: 9848389
    Abstract: An example method is provided in one example embodiment and includes receiving a first message indicative of whether a first cell is non-interfering to at least one neighboring cell, determining whether the first cell is non-interfering to the at least one neighboring cell based upon the first message, and responsive to a determination that the first cell is not non-interfering to the at least one neighboring cells, reducing a power level of one or more downlink resources of a fractional frequency reuse portion of a frequency spectrum associated with the first cell.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: December 19, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Rohit Umesh Nabar, Ritesh K. Madan
  • Patent number: 9839021
    Abstract: A method, an apparatus and a system for selecting a downlink primary carrier for transmitting data are disclosed. The method includes the following steps: A terminal obtains primary carrier selection information configured by a network; and the terminal determines a downlink carrier corresponding to an uplink carrier of the terminal as a downlink primary carrier for transmitting data according to the primary carrier selection information. In the embodiments of the present invention, the network selects a downlink carrier corresponding to an uplink carrier of the terminal as a downlink primary carrier for transmitting data. The terminal needs to detect only the downlink primary carrier, and the downlink carrier needs to be switched or detected only if the primary carrier receives a signaling message for detecting or receiving other carriers, so it is not necessary to switch or detect the downlink carrier frequently, which reduces battery consumption of the terminal.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: December 5, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lixia Xue, Yujuan He, Chaojun Li
  • Patent number: 9814070
    Abstract: Technology for performing small data transmissions at a user equipment (UE) is disclosed. An apparatus of the UE can receive, from an eNodeB, a small data transmission indicator that instructs the UE to establish a fast radio resource control (RRC) connection with the eNodeB. The apparatus of the UE can initiate a random access channel (RACH) procedure in order to establish the fast RRC connection with the eNodeB. The fast RRC connection may not include the establishment of bearers between the UE and the eNodeB. The apparatus of the UE can perform a small data transmission with the eNodeB using the fast RRC connection between the UE and the eNodeB.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: November 7, 2017
    Assignee: INTEL CORPORATION
    Inventors: Mo-Han Fong, Sangeetha Bangolae, Marta Martinez Tarradell
  • Patent number: 9749856
    Abstract: Methods and apparatuses for providing services for a mobile device with access to a cellular system are disclosed. In accordance with a method a mobile device sends to a cellular system a request for a service by a machine type device. The request includes information identifying the machine type device for use by the cellular system that is then used in exchange of information in relation to at least one of authentication, authorization and configuration. Information associated with configuration of a device-to-machine connection to the machine type device is then sent to the mobile device. The device-to-machine connection for use of the service is then established between the machine type device and the mobile device based on the received information. In another embodiment the mobile device contact the machine type device first and provides the machine type device with information assigned by the cellular system.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: August 29, 2017
    Assignee: Nokia Solutions and Networks OY
    Inventors: Vinh Van Phan, Ling Yu, Kari Veikko Horneman
  • Patent number: 9717037
    Abstract: Disclosed is a method for scanning for an access point. An active scan method comprises the steps of: generating a probe request frame including information on the signal strength of a terminal; and transmitting the probe request frame to an access point. Thus, a waste of time and radio resources can be prevented.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: July 25, 2017
    Assignee: KT Corporation
    Inventors: Byung Wan Yoon, Su Hwan Rim
  • Patent number: 9706433
    Abstract: From a plurality of messages provided by at least a first license-exempt access node which give usage information for the at least one channel in license-exempt radio spectrum, there is derived channel-specific statistical traffic information. This information for the channel is then provided to a second access node that controls licensed radio spectrum. Or in another embodiment the second access node can get this information by sensing and measuring the channel itself. The second access node retrieves this information from its local memory and sends on the licensed radio spectrum a downlink message having contents, determined from the channel-specific statistical traffic information, for aiding a user equipment UE to access the channel with a probability defined by the contents. The UE receives this message, extracts the contents, and attempts to access that channel in the license-exempt radio spectrum utilizing the defined probability.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: July 11, 2017
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Haifeng Wang, Kari Rikkinen, Ning Zhang, Ting Zhou, Jing Xu, Wei Zou, Zhenhong Li, Jinling Du
  • Patent number: 9674073
    Abstract: This invention extends routing mechanisms that use link metrics for route selection so that: A link metric cross correlation vector is determined for all links, where each element in the vector corresponds to some other link, and reflects the change in the link metric value if a data flow would already use this other link. The invention further describes a specific embodiment where all cross-correlating links are adjacent to each other, i.e., they terminate or originate in a common node. A mechanism is described to create an extended routing graph. This extended graph permits the use of standard polynomial time algorithms that simultaneously construct the optimal route and find the optimal route metric (such as shortest-path algorithms) also for the adjacent link cross-correlating case.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: June 6, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Mikael Prytz, Joachim Sachs, Per Magnusson, Johan Lundsjö, Peter Larsson
  • Patent number: 9674839
    Abstract: The concepts relate to radio white space utilization. One example can measure a potential radio white space frequency. The example can also communicate results of the measuring for other devices and receive other results from the other devices relating to the potential radio white space frequency. The method can further determine whether the potential radio white space frequency is actually an available radio white space frequency based upon the results and the other results.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: June 6, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Amer A. Hassan, Daniel A. Reed, Paul W. Garnett, Billy Anders
  • Patent number: 9609520
    Abstract: Certain aspects of the present disclosure relate to techniques for supporting television white space (TVWS) communication. In an aspect of the present disclosure, a low-rate TVWS enabler (Mode II wireless communication device) may provide initial enablement for all Mode I devices (e.g., access points and user terminals), as well as it may transmit a contact verification signal (CVS) on a regular basis to keep the Mode I devices enabled for the TVWS communication.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: March 28, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Stephen J. Shellhammer, Cong Shen, Rahul Tandra, Santosh Paul Abraham, Sameer Vermani, Hemanth Sampath
  • Patent number: 9603188
    Abstract: Dynamic connection management of a network connection at an electronic communications device is disclosed. In an example, one or more connection criteria associated with connection establishment at the electronic communications device is determined at the electronic communications device. The electronic communications device determines a connection acquisition priority list based on current values of the one or more connection criteria, the connection acquisition priority list being a prioritized order of connection types. The electronic communications device attempts to establish a network connection based on the connection acquisition priority list.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: March 21, 2017
    Assignee: QUALCOMM Incorporated
    Inventor: Arnold Jason Gum
  • Patent number: 9553709
    Abstract: A method and an apparatus is provided for conducting wireless data communications using whitespace and non-whitespace channels. A short-range base station with an interface for whitespace channels and another interface for non-whitespace channels communicates with user equipment outfitted with equivalent interfaces. The short-range base station has a preference for using the interface for the whitespace channels, where the whitespace channels are whitespace spectrum bands that are available during periods when a primary user is not actively utilizing the whitespace. A spectrum server analyzes spectrum occupancy database information and whitespace spectrum sensing measurements to determine lists of available whitespace spectrum bands for use by the short-range base station.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: January 24, 2017
    Assignee: Alcatel Lucent
    Inventors: Milind M. Buddhikot, Sayandeep Sen, Dragan Samardzija, Tan Zhang, Susan Walker
  • Patent number: 9538528
    Abstract: An apparatus defines a set of resources out of a first number of orthogonal radio resources and controls a transmitting means to simultaneously transmit a respective first radio signal for each resource on all resources of the set. A respective estimated interference is estimated on each of the resources of the set when the respective first radio signals are transmitted simultaneously. A first resource of the set is selected if the estimated interference on the first resource exceeds a first predefined level and, in the set, the first resource is replaced by a second resource of the first number of resources not having been part of the set. Each of the controlling and the estimating, the selecting, and the replacing is performed in order, respectively, for a predefined time.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: January 3, 2017
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Gustavo Wagner, Andrea Cattoni, Istvan Zsolt Kovacs
  • Patent number: 9525449
    Abstract: In wireless communication, a camera on a mobile communication device may be activated to take photographs of the surroundings. The photographs may be further converted into infrared photographs. People near the mobile communication device may be identified on the infrared photographs. The EM radiation of the mobile communication device may then be adjusted to avoid the regions in which people are identified.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: December 20, 2016
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Xuefeng Yin
  • Patent number: 9485718
    Abstract: Various embodiments enable recovering from an out-of-service state in a wireless device. A processor may perform scans of a first acquisition database to acquire a first renewed service connection for a first subscriber identification module (SIM). The scans include first and second searches for first and second channels identified in first and second technology lists, respectively, from the first acquisition database, respectively, until either a renewed service connection is acquired or each of the first and second technology lists are exhausted. The first and second technology lists identify channels from first and second radio access technologies. A currently used channel of a second SIM acquired service is first on the first technology list. The processor may perform a full frequency scan to acquire a first renewed service connection for the first SIM in response to determining that each of the first and second technology lists were exhausted.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: November 1, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Karthik Nagpal Bengoti Vuchula, Shivank Nayak, Rajesh Madhukar Patil, Jiming Guo, Venugopal Krishna Srinivasa Srungaram, Chih-Ping Hsu
  • Patent number: 9459345
    Abstract: Systems and methods for screening, where a subject walks through or in front of a passive detector (or scanning unit) to be screened for possession of unauthorized electronics devices, provide for detecting and monitoring electronics systems not authorized to be used in secure areas. By focusing a very narrow beam width antenna array, individuals can be screened who may have concealed electronics devices that can pose danger to the surroundings. There is no need for removing clothing or accessories such as a jacket or backpack, for example. The detection system may include a frequency scanned passive receiver that captures a signal from a detected electronics device, measures its strength, and identifies the device or classifies it according to a pre-determined set of categories (e.g., cellular phone, camera, or global positioning system (GPS)).
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: October 4, 2016
    Inventor: Farrokh Mohamadi
  • Patent number: 9445446
    Abstract: This disclosure proposes a method to achieve D2D (device to device) communication in LTE system. Traditional communication in LTE systems is based on eNB. UEs (User Equipment) need to connect to eNB to send uplink and downlink transmission. Device to device communication is different from the traditional LTE scheme. UEs may directly connect to other UEs, sending data to each other. The disclosure provides the signaling process, based on LTE network entry procedure, to establish D2D communication in LTE system. D2D UEs send Msg1 to another D2D UE, and the recipient respond with Msg2. After the negotiation between D2D UEs, Msg3 and Msg4 are exchanged between UEs and eNB. Several embodiments are provided for the signaling of Msg3 and Msg4. The D2D data transmission may be enabled after the Msg4 or explicit data session initialization.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 13, 2016
    Assignee: Industrial Technology Research Institute
    Inventors: Hung-Yu Wei, Ching-Chun Chou
  • Patent number: 9413636
    Abstract: One embodiment identifies all one-hop neighbor nodes and two-hop neighbor nodes of a node; determines an active set of one-hop neighbor nodes for the node, comprising: includes in the active set each one-hop neighbor node that is either an edge node or connected with at least one two-hop neighbor node with which no other one-hop neighbor nodes are connected; and if the active set is not yet complete, then: determine all combinations of one-hop neighbor nodes that are not already in the active set; and tests each combination in order of each combination's total-energy value to determine whether a specific combination is able to complete the active set; if no combination is able to complete the active set, then including all one-hop neighbor nodes in the active set; and communicates a message to each one-hop neighbor node in the active set indicating that it is in the active set.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: August 9, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Alvaro E. Retana, Michael Barnes, Russell I. White, Alan Patrick Sheridan, Stanley M. Ratliff
  • Patent number: 9345002
    Abstract: The present disclosure discloses a dynamic spectrum allocation method and device based on channel management. The method comprises the following steps: a network node generates a channel set according to an available channel list and channel classification information, and maintains and updates the channel set; and the network node selects a spectrum from the channel set and allocates the spectrum. The device comprises: a channel set generation module configured to generate a channel set according to an available channel list and channel classification information and maintain and update the channel set; and a spectrum allocation module configured to select a spectrum from the channel set and allocate the spectrum. The present disclosure can reduce the delay in the spectrum resource reconfiguration of a CR system, improves the overall performance of spectrum resource reconfiguration and increases the utilization efficiency of a spectrum.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: May 17, 2016
    Assignee: ZTE Corporation
    Inventors: Ting Miao, Yan Li, Xing Liu, Bin Wang, Dong Zhou
  • Patent number: 9295097
    Abstract: That a trigger for creating a temporary collaborative ad-hoc network of hardware nodes has occurred is detected. In response, the temporary collaborative ad-hoc network is created via intercommunication among the hardware nodes. After the temporary collaborative ad-hoc network has been created, the temporary collaborative ad-hoc network performs a given function. A particular hardware node within the temporary collaborative ad-hoc network can perform a roll call request so that it ascertains a list of the hardware nodes within the temporary collaborative ad-hoc network. Performing the roll call request can include ascertaining that a correctness of the list of the hardware nodes satisfies a threshold, such that the correctness of the list of the hardware nodes is not necessarily completely correct.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: March 22, 2016
    Assignee: International Business Machines Corporation
    Inventors: Mark B. Stevens, John D. Wilson