Multiple Base Stations Patents (Class 455/524)
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Patent number: 9008678Abstract: The invention relates to a method of grouping a first plurality of cells contained in a subset of cells of a wireless telecommunication network (100) to a first cluster for receiving uplink data from a mobile telecommunication device (106; 200), and grouping a second plurality of cells contained in the subset of cells to a second cluster for transmitting downlink data to the mobile telecommunication device.Type: GrantFiled: November 17, 2011Date of Patent: April 14, 2015Assignee: Alcatel LucentInventor: Lutz Schoenerstedt
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Patent number: 9002955Abstract: A computing network, including: a plurality of peer computing devices including code, which when executed by a peer computing device causes the executing peer computing device to cooperate with at least one other of the peer computing devices; at least one server including code, which when executed by the at least one server locates at least one of the peer computing devices; and at least one mediator including code, which when executed by the at least on mediator collects charging information from at least some of the peer computing devices; wherein, the peer computing devices, at least one sever and at least one mediator are communicatively coupled via an at least carrier-grade telecommunications network being suitable for enhancing cooperation among the cooperating ones of the peer computing devices relative to best-efforts communications among the cooperating ones of the peer computing devices.Type: GrantFiled: April 24, 2009Date of Patent: April 7, 2015Assignees: ZTE Corporation, ZTE USA Inc.Inventors: Larry Shaoyan Ma, Weiyong Zhu, Li Mo
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Patent number: 8989788Abstract: A method and an apparatus for uplink power control in a wireless communication system are provided. More specially, a method is provided in which a first base station in a wireless communication system periodically measures interference for a cell of a second base station neighboring the first base station, determines an average of the periodically measured interference, broadcasts the determined average of the periodically measured interference to mobile terminals located in a cell of the first base station, determines a weight for the determined average of the periodically measured interference, based on one of resource allocation information for the cell of the second base station and whether a specific message for interference regulation is received from the second base station, and transmits the determined weight to the mobile terminals.Type: GrantFiled: February 10, 2012Date of Patent: March 24, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Su-Ryong Jeong, Jeong-Ho Park, Tae-Young Kim
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Patent number: 8989800Abstract: A method of determining synchronization timing, comprising: transmitting transmission power information of a first base station (BS) which connects a mobile station (MS) and a second BS; switching reception frequency of the MS in the transmission period for the first BS to transmit reference signal between transmission frequencies of reference signal of the first BS and the second BS; measuring reception power received by the MS from the first BS and the second BS; determining propagation loss from the first BS and the second BS to the MS based on the measured reception power and transmission power information; determining a propagation delay difference between the first BS and the second BS to the MS based on the propagation loss; determining synchronization timing of the second base apparatus to the MS based on synchronization timing of the first BS to the MS and the propagation delay difference.Type: GrantFiled: April 10, 2012Date of Patent: March 24, 2015Assignee: Fujitsu LimitedInventor: Masahiro Watanabe
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Patent number: 8989819Abstract: A method for saving number applied to a handheld electronic device is provided. In the method, in response to determining that the total number of digits of a entered number reaches the predetermined minimum number and the entered number does not correspond to a part of any one of one or more contact data, a save button is displayed on the screen for saving the entered number after the save button is triggered, a save button is shown on the screen, and the entered number is saved after the save button is triggered.Type: GrantFiled: June 24, 2014Date of Patent: March 24, 2015Assignee: HTC CorporationInventor: Yuan-Mao Tsuei
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Patent number: 8983512Abstract: A method, a base station, a Multimedia Broadcast Multicast Service (MBMS) Coordination Entity (MCE), and a system for transmitting messages are provided. The method includes the steps of: defining a transmission order for different services in a service area; defining an arranging order of different messages in the same Transport Block (TB); generating and transmitting first messages carrying the transmission order for different services and the arranging order of different messages so as to synchronize contents of the first message TBs. According to the above technical solutions, the content synchronization of the MCCH RRC message TBs may be achieved.Type: GrantFiled: April 28, 2009Date of Patent: March 17, 2015Assignee: Alcatel LucentInventors: He Wang, Yu Chen, Zhongji Hu, Yonggang Wang
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Patent number: 8983525Abstract: A mobile communication system includes: a plurality of mobile communication terminals; and a first base station device configured to wirelessly communicate with the plurality of mobile communication terminals. The first base station device is configured to report to the plurality of mobile communication terminals that a second base station device allowing only a particular mobile communication terminal access is set to allow all the plurality of mobile communication terminals access, by transmitting using cell broadcast service, identification information of the second station device.Type: GrantFiled: March 7, 2011Date of Patent: March 17, 2015Assignee: Sharp Kabushiki KaishaInventors: Shigeto Suzuki, Shinichi Sawada, Hirokazu Kobayashi, Koki Suzuki, Akio Yoshihara
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Patent number: 8982788Abstract: Provided are a method and an apparatus for transmitting a positioning reference signal (PRS) in a wireless communication system. A terminal obtains positioning subframe configuration information to determine at least one positioning subframe among a plurality of downlink subframes in a wireless frame, obtains downlink subframe configuration information to determine the type of each downlink subframe in the wireless frame, receives PRSs in at least one positioning subframe from a plurality of cells, and reports measured time differences between the PRSs received from the plurality of the cells. The type of each downlink subframe of the wireless frame is classified into a 1st type subframe and a 2nd type subframe, and the type of at least one positioning subframe is either the 1st type subframe or the 2nd type subframe. In addition, the PRSs are mapped into at least one positioning subframe on the basis of a single PRS pattern.Type: GrantFiled: April 9, 2010Date of Patent: March 17, 2015Assignee: LG Electronics Inc.Inventors: Seung Hee Han, Dae Won Lee, Yeong Hyeon Kwon
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Patent number: 8983526Abstract: An Optimized Streetlight Operation (OSLO) system that utilizes a cellular network overlay to broadcast control commands issued by a centralized Streetlight Operation Center (SOC) to RF control modules mounted on each streetlight pole. The cellular network may be a CDMA network utilizing Short Message Service-Broadcast (SMS-B) messaging. When a Mobile Telephone Exchange/Mobile Switching Center (MTX/MSC) receives a SOC control command from the SOC, the MTX/MSC causes a plurality of BSs to broadcast the SOC command in the network operating area a defined number of times. Each RF control module that successfully receives the broadcast SOC control command, performs actions to control operation of the module's associated streetlight, and transmits a confirmation message to the module's serving BS indicating the SOC command was received. The modules are configured to stagger transmission of the confirmation messages over a period of time to reduce a peak load imposed on the cellular network.Type: GrantFiled: August 30, 2012Date of Patent: March 17, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Pulin Chhatbar, Miroslav Budic, Abdennaceaur Lachtar, Ravindra Dongre, Gheorghe Spiride
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Radio communication system, radio base station, and method for reconfiguring communication parameter
Patent number: 8983527Abstract: A disclosed high-power base station (100) is provided with: an inter-base-station communication unit (140) that transmits, to neighboring base stations, measurement instruction information that instructs the neighboring base stations to measure the reception quality of radio signals sent by the local station; a measurement result collection unit (121) that collects, from the neighboring base stations, measurement result information that indicates reception quality measurement results; and a parameter reconfiguration unit (123) that reconfigures communication parameters for the local station on the basis of the measurement result information collected by the measurement result collection unit (121).Type: GrantFiled: April 5, 2011Date of Patent: March 17, 2015Assignee: KYOCERA CorporationInventor: Tetsuya Yuda -
Patent number: 8977308Abstract: Apparatuses and methodologies are described that mitigate signal pollution in a wireless communication system. According to one aspect, user devices can request signals for use in access point selection. Access points can be selected based upon the received strength of their signals. In one aspect, access points can delay the transmission of signals based upon the strength of the received request. In addition, if sufficient access points respond during the delay, an access point can refrain from transmitting signals in response to signal requests, further reducing signal pollution.Type: GrantFiled: February 22, 2006Date of Patent: March 10, 2015Assignee: QUALCOMM IncorporatedInventor: David Jonathan Julian
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Patent number: 8977283Abstract: Techniques for efficient signaling to and from a plurality of mobile stations are disclosed. In one embodiment, a subset of mobile stations may be allocated a portion of the shared resource with one or more individual access grants, another subset may be allocated a portion of the shared resource with a single common grant, and yet another subset may be allowed to use a portion of the shared resource without any grant. In another embodiment, an acknowledge and continue command is used to extend all or a subset of the previous grants without the need for additional requests and grants, and their associated overhead. In one embodiment, a traffic to pilot ratio (T/P) is used to allocate a portion of the shared resource, allowing a mobile station flexibility in selecting its transmission format based on T/P.Type: GrantFiled: September 26, 2012Date of Patent: March 10, 2015Assignee: QUALCOMM IncorporatedInventors: Tao Chen, Edward G. Tiedemann, Jr., Avinash Jain
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Patent number: 8976882Abstract: A precoding weight generation method involves generating a channel matrix having channel state information transmitted as feedback from mobile stations undergoing spatial multiplexing for each cell that base stations manage, and generating precoding weights. When data transmission is targeted for a first mobile station that transmits the channel state information as feedback as well as transmits the channel state information to a weight generation target cell that is a target for generation of precoding weights, precoding weights are generated so as not to suppress interference on a second mobile station that transmits the channel state information as feedback as well as transmits the channel state information to the weight generation target cell, while suppressing interference on a third mobile station that does not transmit the channel state information as feedback except to the weight generation target cell.Type: GrantFiled: February 9, 2011Date of Patent: March 10, 2015Assignee: NTT DOCOMO, INC.Inventors: Hidekazu Taoka, Kenichi Higuchi
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Patent number: 8971950Abstract: The embodiments herein relate to a method in a base station for adjusting transmission power in a communications network. The base station determines a first number m; P of historical transmit power control, TPC, commands based on a signal power and an interference level. The base station determines a second number 2k; n+Q of current TPC commands based on the first number m; P of historical TPC commands, or based on the first number m; P of historical TPC commands and a third number n?K of signal power and interference level pairs. The base station transmits a sequence of TPC commands comprising the first number of historical TPC commands and the second number of current TPC commands to the user equipment to adjust the user equipment's transmission power.Type: GrantFiled: February 9, 2012Date of Patent: March 3, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Anders Lamm, Anders Persson, Anders Hansson, Tomas Svadling, Jinhua Liu, Xinyu Gu, Hai Wang
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Patent number: 8965443Abstract: A method and system for access and uplink power control for a wireless system having multiple transmit points. In one aspect, a method at a user equipment operating in a wireless network having a plurality of transmission points including a macro evolved Node B (‘eNB’) and at least one low power node (‘LPN’) having transmit power lower than that of the macro eNB, the method finding, at the user equipment, at least one reference transmission point, the finding utilizing at least one of a calculation at the user equipment and a message from a network element; and performing, by the user equipment, uplink power control based on the at least one reference transmission.Type: GrantFiled: August 12, 2011Date of Patent: February 24, 2015Assignee: BlackBerry LimitedInventors: Shiwei Gao, Hua Xu, Dongsheng Yu, Yongkang Jia, Masoud Ebrahimi Tazeh Mahalleh, Tarik Tabet, Youn Hyoung Heo, Zhijun Cai
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Patent number: 8965445Abstract: A base station (BTS) may instruct a client station (CS) to transmit sounding signals that the BTS may analyze to determine what adjustments, such as power, time, and/or frequency adjustment(s) should be made by the CS. The BTS may control when and how the sounding signals are sent by the CS. This helps reduce the possibility of adjustment signals transmitted by two or more CSs colliding. Thus, sounding signals transmitted by the CS in response to a request by the BTS can be received by the BTS with higher a probability of success. This permits the BTS to more accurately characterize the channel and to provide better adjustment of power level, frequency offset, and/or timing offset for more optimal communication. Such techniques can be used to reduce bit error rates and to improve the overall signal to noise ratio encountered by the system.Type: GrantFiled: April 30, 2012Date of Patent: February 24, 2015Assignee: Wi-Lan, Inc.Inventor: Ron Porat
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Patent number: 8964706Abstract: A method of co-ordinating communication between a plurality of base stations in a communication system, including designating timeslots where said base stations receive and/or transit co-ordination messages to each other. The system may be an autonomous cellular system and the timeslots may be regularly spaced.Type: GrantFiled: November 5, 2008Date of Patent: February 24, 2015Assignee: Nokia Siemens Networks OyInventors: Frank Frederiksen, Klaus Ingemann Pedersen
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Patent number: 8958843Abstract: A method for managing adjacent relation among cells is disclosed in the disclosure. The method includes: obtaining adjacent cell configuration information of a current cell in real time; a Network Management System (NMS), an Element Management System (EMS) and a Network Element (NE), in turn, analyzing and processing the adjacent cell configuration information and adjusting an adjacent relation list of the cell, according to a hierarchical control strategy table preconfigured or in default configuration, wherein the hierarchical control strategy table is used to specify adjacent relation list configuration ability of the NMS, the EMS and the NE.Type: GrantFiled: May 3, 2011Date of Patent: February 17, 2015Assignee: ZTE CorporationInventors: Hua Ni, Yanqin Gao
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Patent number: 8958802Abstract: A base station can observe downlink communications of neighboring base stations of neighboring cells to determine operational parameters of these neighboring base stations in a process called sniffing. The base station ceases downlink transmission and/or uplink reception and initiates downlink reception for a duration in time and/or over frequency to form a sniffing window to observe the downlink communications of the one or more neighboring base stations. The sniffing window represents an area in time and/or frequency where downlink communications are not transmitted. The base station determines operational parameters based upon the downlink communications of the one or more neighboring base stations that are observed during the sniffing window.Type: GrantFiled: February 5, 2013Date of Patent: February 17, 2015Assignee: Broadcom CorporationInventor: Amir Appel
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Patent number: 8958842Abstract: When the received power level of the low-power PDCCH control information from a low-power base station (200) received by a radio terminal (300) is at a prescribed level or more, a high-power base station (100) removes the high-power base station (100) as the connection destination candidate of the radio terminal (300) regardless of the received power level of the high-power PDCCH control information from the high-power base station (100), and performs handover processing so that the connection destination of the radio terminal (300) switches from the high-power base station (100) to the low-power base station (200) which has become the connection destination candidate.Type: GrantFiled: November 1, 2010Date of Patent: February 17, 2015Assignee: KYOCERA CorporationInventor: Taku Nakayama
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Patent number: 8954104Abstract: A high-power point (110) and one or more low-power points (120) transmit signals associated with the same cell-identifier in a heterogeneous cell deployment. Coverage areas corresponding to the low-power points (120) fall at least partly within the coverage area for the high-power point, so that mobile stations (130) within range of a low-power point are also within range of the high-power point (110). A low-power point (120) measures timing or frequency, or both, of one or more signals received at the low-power point (120) from the high-power point (110), and adjusts the timing or frequency, or both, of a transmission from the low-power point (120) to a mobile station (130), to align the transmission with signals received by the mobile station (130) from the high-power point (110).Type: GrantFiled: November 2, 2011Date of Patent: February 10, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Stefan Parkvall, Erik Dahlman, George Jöngren, Lars Lindbom
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Patent number: 8948809Abstract: Methods of predicting future connectivity of a portable electronic device is described along with systems and devices for implementing the methods. The method includes receiving an indication of a plurality of radio scenes detected at the portable electronic device at different reference times. Each of the plurality of radio scenes identifies transmitters and associated signal strength of signals received by the portable electronic device at the respective reference time. One or more connectivity predictions can be retrieved from a corpus of pairs of a composite signature vector and associated connectivity information. Each of the one or more connectivity predictions can be retrieved based on a similarity between the associated respective composite signature vector and a query composite signature vector. A future connectivity prediction of the portable electronic device can be provided based on the one or more retrieved connectivity predictions.Type: GrantFiled: March 9, 2012Date of Patent: February 3, 2015Assignee: BlackBerry LimitedInventors: Anand Ravindra Oka, Christopher Harris Snow, Ghasem Naddafzadeh Shirazi, Sean Bartholomew Simmons, Gerhard Dietrich Klassen
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Patent number: 8942669Abstract: One or more servers may: receive information regarding a content file stored by a device; provide information associated with a first cost value corresponding to a cost to deliver the content file from the device to a user device; receive a delivery instruction directing the one or more servers to provide a portion of the content file to the user device via one or more ports or via one or more access points, each of the one or more ports or the one or more access points being associated with respective one or more second cost values; generate a key associated with the information regarding the content file and with the delivery instruction; receive an indication of selection of the key by the user device; deliver, to the user device, the portion of the content file via the one or more ports or the one or more access points.Type: GrantFiled: December 5, 2012Date of Patent: January 27, 2015Assignees: Verizon Patent and Licensing Inc., Cellco PartnershipInventors: Benjamin J. Parker, Phillip A. Ritter, Chris S. Neisinger, Barry F. Hoffner
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Patent number: 8942757Abstract: Disclosed are a communication control device, a communication control method and the system thereof, which provide efficient multi-base station joint services in a mobile communication system using dynamic clustering. Optimal base station clustering is chosen according to the communication state between a terminal and each base station. The communication control device connects with multiple base stations through a network, and clusters the multiple base stations dynamically so that the clustered multiple base stations can provide services for the mobile terminal in union. The communication control device comprises: an interface, connecting with multiple base stations, receiving channel state information related to the mobile terminal from each base station; a memory unit, storing the channel state information of the mobile terminal received from the interface; a control unit, clustering each base station dynamically according to the channel state information of the mobile terminal stored in the memory unit.Type: GrantFiled: April 29, 2010Date of Patent: January 27, 2015Assignee: Hitachi, Ltd.Inventors: Yunjian Jia, Kenzaburo Fujishima, Hideya Yoshiuchi, Peng Yang, Yuanchen Ma, Lu Geng, Sheng Zhou, Zhisheng Niu, Jie Gong
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Publication number: 20150018034Abstract: The present invention is designed to prevent the decrease of throughput and also reduce the overhead of CSI feedback when CoMP transmission is applied. In a radio communication system including a plurality of radio base station apparatuses and a user terminal that is configured to be able to carry out coordinated multiple-point transmission/reception with the plurality of radio base station apparatuses, the radio base station apparatus designates a plurality of candidate values of predetermined inter-cell channel state information and reports them to the user terminal, and the user terminal measures inter-cell channel state information of each cell, and also selects a specific candidate value that is close to the measurement value of inter-cell channel state information from the plurality of candidate values that have been reported, and feeds back the specific candidate value to the radio base station apparatus.Type: ApplicationFiled: January 24, 2013Publication date: January 15, 2015Inventors: Satoshi Nagata, Xiang Yun, Xiaoming She, Lan Chen
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Patent number: 8934930Abstract: A distributed parameter update procedure is provided for updating parameters that do not have discrete values. When a parameter value is changed, a search is conducted of a parameter space to find a new parameter value minimizes some cost function. The cost function is derived based on the current parameter settings in neighboring nodes. The distributed parameter update procedure may simplify the search process by localizing the search of the parameter space for a new parameter value to the vicinity of the current parameter setting. In some embodiments, the search is conducted along a line of steepest descent emanating from the current parameter setting.Type: GrantFiled: October 27, 2011Date of Patent: January 13, 2015Assignee: Telefonaktiebolaget L M EricssonInventors: Jiann-Ching Guey, Dennis Hui
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Patent number: 8923913Abstract: A first extended base station that forms a first cell and a second extended base station that forms a second cell operate for a cooperative communication of transmitting same data to a user terminal located in the first cell. A second signal processor that corresponds to the second extended base station generates a training signal specific to the first extended base station and the first extended base station and the second extended base station transmit same data and same training signals. Thus, a cooperative communication can be realized in a system that uses a training signal specific to a base station.Type: GrantFiled: March 21, 2012Date of Patent: December 30, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Yuji Tohzaka, Hidetsugu Aoki
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Patent number: 8918135Abstract: The present description relates to a method for controlling uplink power in a distributed multi-node system, comprising the following steps: receiving reference signals from a plurality of antenna nodes containing at least one antenna; estimating average propagation loss on the basis of the receiving power of the reference signals received from the plurality of antenna nodes; receiving, via a downlink control channel, noise and interference (NI) information from a base station which contains the plurality of antenna nodes; and determining uplink transmission power using the estimated average propagation loss and the received noise and interference information.Type: GrantFiled: March 8, 2011Date of Patent: December 23, 2014Assignee: LG Electronics Inc.Inventors: Sungho Park, Jiwon Kang, Sunam Kim, Binchul Ihm, Jinyoung Chun, Kitae Kim, Dongcheol Kim
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Publication number: 20140370931Abstract: A method and mobile station are described for reporting channel quality information for multi-cell cooperation. The mobile station receives a channel quality request message for requesting channel quality information from a base station. The channel quality request message indicates that the mobile station is one of a plurality of candidate mobile stations to perform multi-cell cooperation. The mobile station reports the channel quality information to the base station. The channel quality information includes first channel quality information for the base station and second channel quality information for a neighboring base station.Type: ApplicationFiled: September 2, 2014Publication date: December 18, 2014Inventors: Suck Chel YANG, Dong Ku KIM, Jang Hoon YANG, Hyukjin CHAE, Hyung Tae KIM, Yo Han KIM
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Patent number: 8913558Abstract: Since user data from a mobile station always passes a gateway, even in communication between mobile stations in a cell of the same base station in the same mobile station system, user data is transferred to the gateway and the trombone phenomenon occurs. Traffic is concentrated in the gateway and networks near the gateway. A local routing node includes a unit for passing signaling of communication between a base station and the gateway according to a protocol of the mobile communication system, for extracting and decapsulating bearer data transferred between the base station and the gateway, and for thereby obtaining and transferring user data and a unit for encapsulating and transferring user data. The local routing node extracts bearer data, which is conventionally transferred up to the gateway, and transfers the data to the network.Type: GrantFiled: July 10, 2012Date of Patent: December 16, 2014Assignee: Hitachi, Ltd.Inventor: Naruhito Nakahara
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Patent number: 8914031Abstract: Disclosed are a beamforming method and a beamforming apparatus for an adaptive antenna. A mobile terminal equipped with the adaptive antenna is initialized, a base station to transceive a signal with the mobile terminal is searched, beamforming is performed based on the searched base station, a reference position value of the mobile terminal is stored, and the beamforming of the antenna is adjusted if a sensing module in the mobile terminal detects position change of the mobile terminal based on a reference position. A changed position of the mobile terminal is stored as the reference position value, so that the position of the terminal is detected based on the reference position in real time, thereby simply and accurately performing the beamforming.Type: GrantFiled: September 4, 2012Date of Patent: December 16, 2014Assignee: LG Innotek Co., Ltd.Inventor: Jeong Hoon Cho
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Patent number: 8904000Abstract: One embodiment of a system for providing services to subscribers of a network supports the provision of a plurality of different services to multiple subscribers. A first processing unit provides a first execution environment for a first set of software applications and a second processing unit provides a second execution environment for a second set of software applications. A data structure is provided for storing data associated with subscribers of the system, the data structure providing a common identity for association with a subscriber which is recognized by all processing units of the system. This provides a common user repository which simplifies the provision of services and the authentication processes within the system.Type: GrantFiled: January 13, 2006Date of Patent: December 2, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventor: Colin I'Anson
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Patent number: 8903453Abstract: In radio access network (RAN) 1 of the present invention, the configuration of radio network controller (RNC) 4 is physically separated into control plane controllers (CPE) 41a-41b for controlling signalling and user plane controllers (UPE) 42a-42c for controlling user data. User plane controllers 42a-42c report their own status information (traffic information/used channel bandwidth information/alarm information) to control plane controllers to which they belong, and control plane controllers 41a-41b manage the status information of the user plane controllers for each of user plane controllers subordinate thereto.Type: GrantFiled: November 27, 2003Date of Patent: December 2, 2014Assignee: NEC CorporationInventor: Daisuke Ogura
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Patent number: 8897830Abstract: A method and device for obtaining an X2 interface transmission address of a base station in an LTE system are provided. The method is implemented based on base stations, the base station, using a constructed independent message, obtains through an S1 interface a base station transmission address which is required for establishing an X2 interface connection, thus making the X2 interface connection established between the base stations. The method and device of the present invention can obtain in time transmission address information of a target base station which is to establish an X2 interface with the current base station, so that the X2 interface can be established between the base stations. This will help to implement information interaction between the base stations and embody the integrality of X2 interface attribute management in the automatic optimization of the relations between neighbor cells.Type: GrantFiled: May 27, 2009Date of Patent: November 25, 2014Assignee: ZTE CorporationInventor: Yin Gao
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Patent number: 8897772Abstract: A cell search method for a terminal capable of cell search control includes: receiving a message including first cell search information from a macro cell base station that manages a macro cell; updating second cell search information stored in the terminal based on the first cell search information; and searching for an accessible cell based on the updated second cell search information.Type: GrantFiled: June 25, 2010Date of Patent: November 25, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Pyeong Jung Song, Hyun Seo Park, Yeon Seung Shin, Gyung-chul Shin
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Patent number: 8892114Abstract: Methods of operating a radio base station of a first cell in a wireless cellular network are disclosed. Each of one or more user equipment devices of the wireless cellular network has an idle mode in which the radio base station is not aware of whether the user equipment device is currently camping on the first cell, and an active mode in which the radio base station is aware of whether the user equipment device is currently camping on the first cell. By setting the radio base station in a disabled state based on various criteria, energy may be saved in the radio base station.Type: GrantFiled: June 23, 2009Date of Patent: November 18, 2014Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Gunnar Mildh, Niklas Johansson, Muhammad Kazmi
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Patent number: 8886250Abstract: A method for determining channel quality estimates of two or more types of subframes, such as clean and unclean subframes, may be applicable to both legacy and newer user equipment. A first base station affects a channel quality measurement by either transmitting dummy signals over designed tones that correspond to a second base station, or by puncturing transmissions during designated tones that correspond to the second base station.Type: GrantFiled: June 17, 2011Date of Patent: November 11, 2014Assignee: Qualcomm IncorporatedInventors: Alan Barbieri, Madhavan Srinivasan Vajapeyam, Tingfang Ji
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Patent number: 8880116Abstract: An apparatus is configured to perform a method for selecting a cell to increase transmission capacity in a wireless communication system. A Mobile Station (MS) can select a cell in a heterogeneous network system. The MS can receive a loading indicator for each of a plurality of Base Stations (BS); measure signal strength information for each of the BSs; and select one of the BSs using the loading indicator and the signal strength information. Therefore, the transmission efficiency of the system can be increased.Type: GrantFiled: October 11, 2011Date of Patent: November 4, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Su-Ryong Jeong, Tae-Young Kim, Chi-Woo Lim
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Patent number: 8867648Abstract: The present application discloses a method for reporting channel status information in a multi antenna wireless communication system. In more detail, the method includes: receiving a reference signal from a base station; calculating the optimum precoding matrix index (PMI), at which the intensity of a signal from the base station is maximized, on the basis of the reference signal: determining at least one interference PMI from the base station on the assumption that a plurality of interference PMIs corresponding to the optimum PIM are applied; and transmitting information on at least one determined interference PMI to the base station. Beams corresponding to the plurality of interference PMIs are orthogonal to the beams corresponding to the optimum PMI.Type: GrantFiled: November 17, 2011Date of Patent: October 21, 2014Assignee: LG Electronics Inc.Inventors: Hyungtae Kim, Hanbyul Seo, Daewon Lee
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Patent number: 8862070Abstract: A Mobile Station (MS) is operable to select a precoding matrix in a multi-antenna wireless communication system. The method includes receiving, from a serving Base Station (BS), information on a precoding matrix of which use is prohibited and a precoding matrix to be used by a neighbor BS, estimating an interference signal for the precoding matrix to be used by the neighbor BS, and selecting a precoding matrix to be used by the serving BS by considering the estimated interference signal from the remaining precoding matrixes except for the precoding matrix of which use is prohibited among precoding matrixes used by the serving BS.Type: GrantFiled: August 20, 2009Date of Patent: October 14, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Yu-Seok Kim, Eun-Yong Kim, Yung-Soo Kim, Sang-Min Lee, Eun-Seok Ko
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Patent number: 8855696Abstract: The method for channel information feedback based on multiple cell collaboration comprises a step wherein first channel quality information including the channel information between the terminal and base station is transmitted to the base station; a step wherein after the first channel quality information is sent; a channel quality information request message is received from the base station; and a step wherein in response to the channel quality information request message, second channel quality information is sent, including channel information between the terminal and the base station and adjacent base stations.Type: GrantFiled: December 24, 2009Date of Patent: October 7, 2014Assignees: LG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Suck Chel Yang, Dong Ku Kim, Jang Hoon Yang, Hyuk Jin Chae, Hyung Tae Kim, Yo Han Kim
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Patent number: 8855647Abstract: The present invention relates to a method for radio resource control connection reestablishment and a terminal. After triggering the RRC connection reestablishment, the terminal searches for a cell used for RRC connection reestablishment to use the cell as a target cell, and receives an SIB1 message corresponding to the target cell; extracts first base station identification information from the SIB1 message, and compare the first base station identification information with second base station identification information saved by the terminal; if the two pieces of information are consistent, the terminal camps on the target cell and sends an RRC connection reestablishment request message to a base station to which the target cell belongs, so that the base station to which the target cell belongs performs the RRC connection reestablishment with the terminal.Type: GrantFiled: February 5, 2013Date of Patent: October 7, 2014Assignee: Huawei Technologies Co., Ltd.Inventor: Dui Li
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Patent number: 8856213Abstract: A system is configured to receive, from a content provider, traffic associated with a data service and that is destined for a group of user devices; retrieve service information, associated with the data service, that includes a value, associated with the data service, that represents a level of service quality associated with the data service; determine whether the traffic is authorized to be transmitted to the user devices based on the value; discard the traffic based on a determination that the value is less than a threshold; process the traffic to identify whether a condition is associated with the traffic based on a determination that the value is not less than the threshold; transmit the traffic to one or more of the user devices based on a determination that the traffic is not associated with a condition; and discard the traffic based on a determination that the traffic is associated with a condition.Type: GrantFiled: August 11, 2011Date of Patent: October 7, 2014Assignee: Verizon Patent and Licensing Inc.Inventors: Devin C. Moore, Wade Peebles Thompson
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Patent number: 8856605Abstract: A method is provided for transmitting data to user equipments, a communication system, a base station and a mobile station. Data is transmitted to user equipments from a first base station (BBS) and from second base stations (CBS) in a time division multiplexed manner in frames (F). Each frame (F) has a first sub-frame and a second sub-frame. The user equipments are located in cells, each cell a second base station (CBS). Data is transmitted wirelessly, during a first sub-frame of a frame, data from the first base station (BBS) to user equipments in a plurality of cells. Data is transmitted wirelessly, during the second sub-frame of the frame (F), from second base station (CBS) to at least one the plurality of user equipments. The data being transmitted from the first base station (BBS) is also transmitted by the second base station (CBS) to at least one of the plurality of cells.Type: GrantFiled: February 11, 2009Date of Patent: October 7, 2014Assignee: Nokia Siemens Networks OyInventors: Jijun Luo, Egon Schulz, Wolfgang Zirwas
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Patent number: 8849332Abstract: An apparatus for controlling a node of a wireless communication system has a traffic load determiner, a cooperation capacity determiner and a power control unit. The traffic load determiner determines a traffic load in the wireless communication system and the cooperation capacity determiner determines an available cooperation capacity of the node with another node of the wireless communication system. Further, the power control unit activates or deactivates an antenna of a node based on the determined traffic load and the determined available capacity.Type: GrantFiled: December 21, 2011Date of Patent: September 30, 2014Assignee: NTT DoCoMo, Inc.Inventors: Luca Scalia, Thorsten Biermann, Changsoon Choi, Wolfgang Kellerer, Kazuyuki Kozu
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Publication number: 20140274197Abstract: The present invention relates to a wireless communication system and a communication control method. The wireless communication system includes: a wireless terminal; a plurality of base stations; and a host-side base station, wherein, in a case where CoMP transmission/reception is requested, the host-side base station decides base stations cooperating therewith for the CoMP transmission/reception, opens wireless lines for base stations under connection to the wireless terminal, and sends a same signal thereto, thereby performs the CoMP transmission/reception, and each of a plurality of the base stations functions as a relay device in a case of transferring the signal with the host-side base station through the wireless line.Type: ApplicationFiled: October 24, 2012Publication date: September 18, 2014Applicant: Kyocera CorporationInventor: Takeo Miyata
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Patent number: 8830960Abstract: A method and apparatus enable high-speed downlink data transmissions to continue while a baton handover is in progress. In an aspect of the disclosure, a method of wireless communication includes switching an uplink from a source cell to a target cell while maintaining a downlink with the source cell, and transmitting over the uplink to the target cell at least one metric of quality of the downlink. In one example, the metric of quality may be a CQI. In another example, the metric of quality may be a HARQ ACK/NACK. The metric of quality of the downlink may be transmitted from the target cell to the source cell, directly or by way of a radio network controller.Type: GrantFiled: March 31, 2010Date of Patent: September 9, 2014Assignee: QUALCOMM IncorporatedInventors: Tom Chin, Guangming Shi, Kuo-Chun Lee
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Patent number: 8831673Abstract: A base station outputs annunciation information which corresponds to a plurality of radio cells established by a 3G public base station and an LTE public base station and which is different from annunciation information output from the 3G public base station and the LTE public base station into a target region X and forms a radio cell. A mobile station that enters the radio cell receives the annunciation information of the radio cell and executes a position registration process. An information administration device can thereby find the mobile station based on the position registration process even in the environment where a plurality of radio cells to which different frequencies are assigned are established geographically overlapping with one another.Type: GrantFiled: December 9, 2010Date of Patent: September 9, 2014Assignee: NTT DoCoMo, Inc.Inventors: Takeshi Okamoto, Hiroyuki Hosono, Takeshi Terayama, Takaaki Sato
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Patent number: 8831672Abstract: A method in a communication system for managing energy consumption of base stations within the communication system includes computing a marginal energy value for a first base station based on an energy source type of the first base station and computing a marginal energy value for a second base station based on an energy source type of the second base station. The method also includes comparing the marginal energy value for the first base station and the marginal energy value for the second base station.Type: GrantFiled: December 8, 2009Date of Patent: September 9, 2014Assignee: Telefonaktiebolaget LM Ericsson(publ)Inventors: Pål Frenger, Ove Linnell, Johan Moe
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Patent number: 8831607Abstract: Systems and methodologies are described that facilitate soft handoff and enhanced performance in a wireless communication environment. In multiple access systems, access points assign certain resources (e.g., time, frequency, code) to each terminal. This assignment information can also be provided to neighboring sectors, allowing such sectors to receive and decode terminal transmissions. The information can be provided via backhaul signaling. Decoding by sectors within the active set of the terminal facilitates smooth transition as terminals move between sectors during soft handoff. In addition, sectors can signal successful receipt and decoding of transmissions, avoiding redundant processing.Type: GrantFiled: January 4, 2007Date of Patent: September 9, 2014Assignee: QUALCOMM IncorporatedInventors: Mohammad J. Borran, Aamod Khandekar, Tingfang Ji