Hierarchical Cell Structure Patents (Class 455/449)
  • Patent number: 8700045
    Abstract: To avoid or reduce intra-cell interference, each sector of a cell is associated with a sector-specific set of system resources (e.g., subbands) and at least one non-overlapping common set of system resources. Each common set for each sector includes system resources observing little or no interference from at least one other sector in the cell. The channel condition for a terminal in a given sector x is ascertained based on forward and/or reverse link measurements for the terminal. The terminal is assigned system resources from a common set or a sector-specific set for sector x based on the terminal's channel condition. For example, if the terminal observes high interference from another sector y, then the terminal is assigned system resources from a common set that observes little or no interference from sector y. The techniques may be used for an OFDMA system that uses frequency hopping.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: April 15, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Tingfang Li, Avneesh Agrawal
  • Patent number: 8699463
    Abstract: A femtocell base station 10a suspends transmission and reception of radio waves to and from a radio communication terminal 30 of an accommodation object when the radio communication terminal 30 is not in the neighborhood of the femtocell base station 10a. The femtocell base station 10a determines whether the radio communication terminal 30 is in the neighborhood of the femtocell base station 10a based on information of a UATI update notification provided through another base station in communication with the radio communication terminal 30 and, when the radio communication terminal 30 is in the neighborhood of the femtocell base station 10a, starts receiving the radio waves from the radio communication terminal 30.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: April 15, 2014
    Assignee: KYOCERA Corporation
    Inventor: Hiroyuki Matsumoto
  • Patent number: 8700046
    Abstract: A mobile communication system wherein the upstream radio channel interference of a macrocell connection terminal with a femtocell base station can be reduced while the consumption of radio resources caused by increase in signaling is being suppressed. The macrocell connection terminal (401) performs, based on an instruction from a macrocell base station (402), an upstream channel transmission and further reports a peripheral-femtocell detection result obtained by a measuring unit to the macrocell base station. The macrocell base station (402) instructs the terminal to perform a peripheral-femtocell detection. The identifier of the terminal and the peripheral-femtocell detection result obtained by the terminal are transmitted to a network management apparatus (404).
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: April 15, 2014
    Assignee: Panasonic Corporation
    Inventors: Keisuke Ebiko, Akito Fukui, Toyoki Ue
  • Patent number: 8694015
    Abstract: A network system, a femtocell, a femtocell management apparatus, a resource allocation method and a computer program product thereof are provided. The network system comprises a piece of user equipment, a femtocell and a femtocell management apparatus. The user equipment is configured to transmit a request. The femtocell communicates with the user equipment and is configured to receive the request and establish an interference figure. The femtocell management apparatus communicates with the femtocell and is configured to receive the request and the interference figure and perform resource allocation to allocate a resource block to the request signal according to the request and the interference figure so that the femtocell and the user equipment may perform signal transmission according to the resource block.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: April 8, 2014
    Assignee: Institute for Information Industry
    Inventor: Chiu-Han Hsiao
  • Patent number: 8694002
    Abstract: A method and system is disclosed for including an IMSI in an EVDO access request. When an access terminal determines that any access request it makes will be sent to a micro-type base station, the access terminal will include its IMSI in any EVDO access request. When a micro-type base station receives an EVDO access request containing an IMSI of the requesting access terminal, the micro-type base station will use the included IMSI to establish and identify a data connection to a PDSN.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: April 8, 2014
    Assignee: Sprint Spectrum L.P.
    Inventors: Rajveen Narendran, Cesar Perez, Ryan Talley
  • Patent number: 8694043
    Abstract: A device selects one or more cells in the network, and coordinates transmissions from the selected one or more cells, and transmissions from neighbor cells of the selected one or more cells, so that transmissions of the selected one or more cells do not interfere with reference signals transmitted by the neighbor cells at designated times. The device also receives, from a user equipment served by the selected one or more cells, measurement reports associated with the reference signals transmitted by the neighbor cells, and determines signal strengths of the neighbor cells based on the measurement reports. The device further determines, based on the signal strengths, whether network coverage is sufficient when coverage of the selected one or more cells is reduced or when the selected one or more cells are out of service.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: April 8, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: András Rácz, László Hévizi
  • Patent number: 8688101
    Abstract: A network controller including processing circuitry may be configured to receive dynamic position information indicative of a three dimensional position of at least one mobile communication node, compare fixed position information indicative of fixed geographic locations of respective access points of a network to the dynamic position information to determine a relative position of the at least one mobile communication node relative to at least one of the access points based on the fixed position information and the dynamic position information, and provide network control instructions to at least one network asset based on the relative position.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: April 1, 2014
    Assignee: Smartsky Networks LLC
    Inventors: Gerard James Hayes, Elbert Stanford Eskridge, Jr., Koichiro Takamizawa
  • Patent number: 8688133
    Abstract: A method for operating a WiMAX femtocell base station, wherein the femtocell base station has an active operational mode, in which the radio interface subsystem of the femtocell base station is fully power supplied, is characterized in that a power saving mode with reduced radio interface activity is provided, wherein the femtocell base station is enabled to transit between the active operation mode and the power saving mode. Furthermore, a corresponding femtocell base station for deployment in a WiMAX network is disclosed.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: April 1, 2014
    Assignee: NEC Corporation
    Inventors: Andreas Maeder, Jun Zhou, Michael Einhaus, Yuefeng Zhou, Tetsu Ikeda, Linghang Fan
  • Patent number: 8682329
    Abstract: A method of performing a handover between heterogeneous networks and user equipment apparatus for the same are disclosed. The user equipment apparatus includes a first type communication module configured to transceive a signal with a first type base station (BS) using a first wireless communication scheme, a second type communication module configured to transceive a signal with a second type BS using a second wireless communication scheme, and a processor configured to control the handover to be performed on a second type BS operating in an idle state with the second type communication module when a signal is received from a first type BS operating in an active state with the first type communication module, wherein the signal request that the UE performs the handover to the second type BS operating in an idle state with the second type communication module from the first type BS.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: March 25, 2014
    Assignee: LG Electronics Inc.
    Inventors: Sunmi Kim, Jonghoon Lee, Hongku Ahn
  • Publication number: 20140080492
    Abstract: A hierarchical cellular network administration system operative to administrate for a hierarchical cellular network having a core, the hierarchical cellular network administration system comprising a link establishment initiator operative to generate link establishment commands; and relay manager functionality operative to establish at least one link between at least one relay in the hierarchical cellular network and all nodes in said cellular network desired to be served by said at least one relay, as per said link establishment commands generated by the link establishment initiator; and to control operation of links thus established.
    Type: Application
    Filed: November 23, 2011
    Publication date: March 20, 2014
    Applicant: ELTA SYSTEMS LTD.
    Inventors: Yaakov Shoshan, Gil Koifman, Adi Schwartz
  • Patent number: 8676221
    Abstract: Certain aspects provide a method for reducing interference in a cooperative MIMO system.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: March 18, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Nagendra Nagaraja
  • Patent number: 8676193
    Abstract: Systems and method are presented for a wireless Base Station (BS) of a host Operator to allow access to its Radio Access Network (RAN) by both Subscriber Stations associated with the host Operator and Subscriber Stations associated with other Operators, in which the first set of Subscriber Stations are connected by a general backhaul channel to the host Operator's Core Network data source, and the second set of Subscriber Station are connected by dedicated backhaul channels to Core Network data sources of the other Operators. In this manner, the host Operator provides partial roaming to the second set of Subscriber Stations, which use the host Operators RAN and wireless BS, but not the host Operator's network infrastructure.
    Type: Grant
    Filed: November 6, 2011
    Date of Patent: March 18, 2014
    Assignee: PureWave Networks, Inc
    Inventors: Dan Picker, Ronen Vengosh, Rephael Cohen
  • Patent number: 8676220
    Abstract: An apparatus and method for operating a hierarchical cell in a wireless communication system are provided. A femto BS transitions into a sleep mode if there is no accessed MS for a predefined time. The femto BS transmits a FEMTO-ADV message in the sleep mode to notify of the presence of the femto BS. The femto BS releases the sleep mode upon receiving a MOB-FEMTO-AWAKE-REQ message from an MS receiving the FEMTO-ADV message. Thereafter, the femto BS communicates with the MS.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: March 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yung-Soo Kim, Jong-Hyung Kwun
  • Patent number: 8666422
    Abstract: An access point for supporting communication in a femto cell of a cellular communication network. The access point comprises transceiver circuitry arranged to enable communication with at least one cell subscribed wireless communication unit located within the femto cell, and signal processing logic module. The signal processing logic is arranged to configure a transmit power level of a Common Pilot CHannel (CPICH) for transmission based at least on cell subscribed wireless communication unit information.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: March 4, 2014
    Assignee: IP.Access Limited
    Inventors: Yajian Liu, John Yearsley Bromell, Akhilesh Pokhariyal, David Neil
  • Patent number: 8666442
    Abstract: A method is provided for controlling an uplink (UL) power by a Mobile Station (MS) in a wireless communication system including an upper-layer Base Station (BS) and a lower-layer BS whose cell coverage is narrower than that of the upper-layer BS.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: March 4, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Su-Ryong Jeong
  • Patent number: 8649791
    Abstract: A list of neighbor cells for a base station of a Long-Term Evolution mobile communication network is developed based on distance information of neighboring cells. Location data identifying location of the base station for which the list of neighbor cells is to be developed and locations of other base stations are processed to determine distance between the base station and each respective one of the other base stations. Based on at least in part determined distances, identification data of the other base stations are ordered. The list of neighbor cells for the base station is compiled to include the ordered identification data for a selected number of nearest ones of the other base stations, based on at least in part the determined distances.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: February 11, 2014
    Assignee: Cellco Partnership
    Inventor: Adam Harold Wohld
  • Patent number: 8644835
    Abstract: A communication method of a macro base station serving a target mobile terminal in a macrocell including a picocell includes receiving information about an uplink interference of a pico base station in the picocell from the pico base station, and determining whether to perform a handover of the target mobile terminal to the pico base station based on an uplink interference of the macro base station and an uplink interference of the pico base station.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: February 4, 2014
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Hyun Ho Choi, Dong Ho Cho, Jung Min Moon, Yong Jin Kwon
  • Patent number: 8639246
    Abstract: A method, terminal and system for cell reselection are disclosed. When in a cell of a Long Term Evolution (LTE) system, the terminal receives a message from the LTE system. The message includes a dedicated priority list for the cell reselection. When the terminal camps on a cell of a non-LTE system, the terminal performs inter-system cell reselection in accordance with the dedicated priority list before a valid time of the dedicated priority list expires. With the discloses method, terminal and system, the problems of establishing a dedicated priority list causes too much increased signaling and too high costs for network update in the prior art when perform inter-system cell (re)selection are effectively resolved.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: January 28, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Michael Roberts, Johan Johansson, Boyun Xie, Min Huang
  • Patent number: 8634342
    Abstract: A method, system, and logic for upgrading mesh points of a wireless mesh network. One method includes maintaining a mesh topology data structure containing information on the tree topology of a wireless mesh network. The method further includes using a tree-walking method to send an upgrade message to the root access point and to each other mesh point in the wireless mesh network until each mesh point has received the upgrade message. Receiving the upgrade message enables the receiving mesh point to upgrade according to the contents of the upgrade message without necessarily disrupting the mesh network.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: January 21, 2014
    Assignee: Cisco Technology, Inc.
    Inventor: Shahriar I. Rahman
  • Patent number: 8630652
    Abstract: In one embodiment, mobile device traffic information and signal strength information associated with a geographical region are obtained. A plurality of candidate locations are determined based on the traffic information and the signal strength information, capacity values for each of the candidate locations are determined, and a candidate location is selected, from among the plurality of candidate locations, as a placement locations based on the capacity values.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: January 14, 2014
    Assignee: Alcatel Lucent
    Inventor: Pantelis Monogioudis
  • Patent number: 8631141
    Abstract: The device records the data of several steps of a protocol hierarchy within a communications system. For this purpose, the data are received by a receiver and buffered by a buffer. The data consist of payload data and control information. The control information is assigned to the individual protocol-hierarchy planes. In this context, the control information of all protocol-hierarchy planes is received and buffered. Furthermore, a maximum of one copy of the payload data is buffered.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: January 14, 2014
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Ingo Gruber, Michael Roth
  • Patent number: 8626176
    Abstract: A method for deriving timing information for a femto cell of a wireless communication system comprises a wireless communication unit of the system receiving observed timing data for a femto cell within a macro cell, and observed timing data for the macro cell. Timing difference values between timing offsets for the femto cell and timing offsets for the macro cell are used to determine a central reference timing difference value for the femto cell. The central reference timing difference value is set as reference timing information for the femto cell. A network element and computer program product for implementing the method of the invention are also provided.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: January 7, 2014
    Assignee: JDSU UK Limited
    Inventor: Michael Joseph Flanagan
  • Patent number: 8626150
    Abstract: A method and arrangement for detecting a radio coverage in a synchronous multicellular mobile radio system having a multitude of synchronous base stations that are connected to an evaluating unit are provided. All base stations are operated in succession in a measuring operating mod. A respective field intensity of base stations that are locally adjacent and in a normal operating mode is measured, and the respectively measured field intensity data are evaluated by the evaluating unit. This enables a sufficient radio coverage to be determined in a highly cost-effective manner and, optionally, to be corrected.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: January 7, 2014
    Assignee: Siemens Enterprise Communications GmbH & Co. KG
    Inventor: Robert Nientiedt
  • Patent number: 8620313
    Abstract: To improve continuity in a communication service while preventing wasteful power consumption in the mobile station, in the mobile communication method of the present invention comprises a step A of the mobile station communicating with a macro cell measuring and reporting reception quality in a neighboring cell of the macro cell, the neighboring cell being notified by a network device, and the network device detecting a home cell that does not allow access from the mobile station, and step B of the network device notifying the mobile station of the neighboring cell of the macro cell excluding the detected cell that does not allow access from the mobile station.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: December 31, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventor: Kenichiro Aoyagi
  • Patent number: 8619673
    Abstract: Two preamble partition schemes are provided for flexible network deployment and efficient utilization of limited cell identification resources in a wireless network. In a soft partition scheme, the entire preamble sequences are partitioned into several configurable non-overlapping subsets, and each subset is associated with a corresponding cell type. In a hybrid partition scheme, a combination of fixed and configurable subsets is used for preamble partition. The partitioning information is carried in a broadcasting channel broadcasted from base stations to mobile stations. In one embodiment, after a mobile station performs scanning and synchronization with a first base station, it derives the cell type of the first base station from cell identification and partitioning information. The mobile station completes ranging and network entry with the first base station if the cell type is preferred, and starts to perform scanning and synchronization with a second base station if the cell type is non-preferred.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: December 31, 2013
    Assignee: Mediatek Inc.
    Inventors: Yu-Hao Chang, Yih-Shen Chen, Pei-Kai Liao
  • Patent number: 8615242
    Abstract: Embodiments of the present invention provide a method and a user equipment for cell selection of a heterogeneous network. The UE selects, a cell with a highest signal measurement value in a carrier frequency synchronizes to the cell, and receives broadcast information of the cell. If the cell is a macro cell, the broadcast information carries an extended indicator bit and the extended indicator bit is used to identify whether a low-power cell exists in the coverage of the macro cell. If the extended indicator bit identifies that the low-power cell exists in the coverage of the macro cell, the low-power cell in the macro cell is searched for, and if a low-power cell in the macro cell satisfies an S rule, the UE selects the lower-power cell as a serving cell and camps.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: December 24, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Dengkun Xiao, Yuan He, Tongwei Qu, Xin Xiong
  • Patent number: 8611901
    Abstract: Techniques are provided for transmitting and receiving communications on behalf of wireless user equipment devices between a plurality of radio access point (RAP) devices and a gateway apparatus through a controller apparatus. A controller apparatus generates a plurality of first identifiers used for communications on behalf of corresponding wireless user devices between the controller apparatus and respective RAPs. Each first identifier identifies a wireless user device and a RAP to which the wireless user device is associated. The controller apparatus maps each first identifier to a corresponding one of a plurality of second identifiers for communications exchanged on behalf of the wireless user devices between the controller apparatus and a gateway apparatus in the wireless cellular communication network. The controller apparatus remaps a new first identifier to an existing second identifier when a particular wireless user device has handed over from a first RAP to a second RAP.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: December 17, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Rajesh Pazhyannur, Mark Grayson, Allaukik Abhishek, Daniel Wee, Santhalingam Balasekar, Hang Jin
  • Publication number: 20130324137
    Abstract: A communication system and method are provided. The communication system includes a master base station, a slave base station and a remote radio unit (RRU); where a cell controlled by the slave base station is included in cells controlled by the master base station. The master base station is configured to receive downlink data and send the downlink data to the slave base station; and the slave base station corresponds to a transmission channel identifier of the downlink data. The slave base station is configured to receive the downlink data sent by the master base station, convert the downlink data into air interface downlink vector data, and send the air interface downlink vector data to the RRU. The RRU is configured to convert the air interface downlink vector data into analog data and send the analog data to a user equipment, thereby realizing data transmission.
    Type: Application
    Filed: August 7, 2013
    Publication date: December 5, 2013
    Applicant: Huawei Technologies Co., LTD
    Inventor: Yang Liu
  • Patent number: 8600349
    Abstract: Node, computer software and method for preventing an external party (114) to map an identity of a network cell (122) of a telecommunication network (112 or 120) with a corresponding geographical location of the network cell (122). The method includes receiving at a base station (200) of the telecommunication network (112 or 120) system information from a radio network controller (203) of the telecommunication network (112 or 120); extracting, at the base station (200), the identity of the network cell (122) from the received system information; changing, at the base station (200), the identity or one of multiple parts of the identity of the network cell (122); and sending the changed identity or the one of multiple parts of the identity to a user terminal (80).
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: December 3, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Per Willars, Johan Bolin, Torbjorn Wigren
  • Patent number: 8600403
    Abstract: Techniques for configuring a Home evolved Node B (HeNB) in a location server and positioning the HeNB are disclosed. In one aspect, location for a HeNB is supported based on LTE Positioning Protocol (LPP) messages. The HeNB communicates LPP messages with a location server. These LPP messages are terminated at the HeNB instead of a UE. At least one location transaction for the HeNB can be performed to configure in the location server and/or locate the HeNB based on the LPP messages. In another aspect, location for a HeNB is supported based on an embedded UE in the HeNB. The HeNB establishes a location session with a location server based on an embedded UE ID, which is assigned to the HeNB and recognized by the location server as being for a HeNB instead of a UE. At least one location transaction for the HeNB is performed during the location session.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: December 3, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Stephen W. Edge
  • Patent number: 8599874
    Abstract: The details of an apparatus and method for handling cell update during reconfiguration in universal mobile telecommunications system user equipment are disclosed herein. When a UE receives a Reconfiguration request from a UTRAN, it sets an activation time for execution of the reconfiguration. Where a cell update is required when the reconfiguration has not yet been applied, the UE delays the execution of the cell update procedure until after the reconfiguration has been applied. If the trigger which initiated the cell update procedure is no longer relevant, the cell update is unnecessary and may be cancelled.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: December 3, 2013
    Assignee: BlackBerry Limited
    Inventors: David W. Pedlar, Robert J. Harrison
  • Patent number: 8594733
    Abstract: Methods and apparatus for using multiple antennas having different polarizations are described. Polarized antennas are advantageously deployed in a cellular network. Some of the cells utilize an antenna with a first direction polarization, while cells use an antenna with a second direction polarization, for a given carrier. Various embodiments are directed to methods and apparatus related to base station deployment which set up and/or operate base stations in accordance with an advantageous reuse pattern from the perspective of inter-cell interference. In some embodiments a plurality of carriers are used in addition to a plurality of different polarization direction antennas. In some such embodiments, a base station is configured so that for a given cell different carriers are associated with different direction polarization antennas. Some embodiments are directed to single sector base station implementations.
    Type: Grant
    Filed: March 8, 2008
    Date of Patent: November 26, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Vikram Reddy Anreddy, Xinzhou Wu
  • Patent number: 8594683
    Abstract: An adaptive scheduling method and apparatus that adaptively perform scheduling based on a coordinated rank in a multi-cell communication system are provided. A master base station may schedule, with a first priority, master terminals, each of which has a preferred rank equal to a transmission rank of the master base station, and may transmit, to a slave base station, information associated with a group of scheduled master terminals. The slave base station may schedule, with different priorities, slave terminals based on whether a transmission rank of the slave base station is equal to the coordinated rank for the master base station.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: November 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bruno Clerckx, Heun Chul Lee, Young Jun Hong, Ki Il Kim
  • Patent number: 8571589
    Abstract: In a wireless communication system having a plurality of base stations and a control station controlling the plurality of base stations, the control station allocates, to the plurality of base stations, antenna patterns associated with directivity patterns for each of a plurality of frequency bands that can be utilized by the respective base stations and if it transmits, to respective ones of the plurality of base stations, parameters for associating the allocated antenna patterns with directivity patterns for each of the plurality of frequency bands; and the plurality of base stations associate the directivity patterns with the plurality of frequency bands on the basis of the parameters received from the control station and, in accordance with the associated directivity patterns, transmit signals to the antenna and receive signals from the antenna.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: October 29, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Naomitsu Ishibashi, Mikio Kuwahara
  • Patent number: 8565761
    Abstract: A mobile communication method according to the present invention includes steps of: performing, at a mobile station (UE) having established a first connection in a first cell, a cell selection process when detecting failure in the first connection; transmitting, from the mobile station (UE) to a second cell selected by the cell selection process, a connection re-establishment request signal; determining, at the radio base station managing the second cell, whether or not to have stored context information of the mobile station (UE) having transmitted the connection re-establishment request signal; acquiring, at the radio base station managing the second cell, the context information of the mobile station from a radio base station managing the first cell, when the radio base station managing the second cell determines that it does not store the context information of the mobile station (UE).
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: October 22, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Mikio Iwamura, Sadayuki Abeta
  • Patent number: 8559998
    Abstract: There is provided a femtocell device for use in connecting a mobile terminal to a communication network, the femtocell device comprising means for implementing a power control procedure in which a target value for a first characteristic of transmissions received from the mobile terminal is set and adjusted based on a quality of service criteria for the transmissions; and wherein the means for implementing the power control procedure operates in a physical layer of the femtocell device.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: October 15, 2013
    Assignee: Mindspeed Technologies U.K., Limited
    Inventor: Christopher Brian Smart
  • Patent number: 8554224
    Abstract: Various arrangements for managing wireless network communication are described. Two cells using different radio access technologies (RATs), such as a 3G cell and a 4G cell, may provide overlapping coverage. A first cell using a first RAT, under certain circumstances, may be permitted to enter a powered down state such that less power is consumed. User equipment may communicate with the cell using the second RAT as the preferred network and only communicate with the cell using the first RAT when a service available through the first RAT but not the second RAT has been requested. Upon a request from the second cell, the first cell may enter a powered up state.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: October 8, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Samir S. Soliman, Olufunmilola O. Awoniyi, Osok Song, Jangwon Lee, Miguel Griot, Ramachandran Subramanian
  • Patent number: 8554215
    Abstract: A method and system is disclosed for including an IMSI in an EVDO access request. When an access terminal determines that any access request it makes will be sent to a micro-type base station, the access terminal will include its IMSI in any EVDO access request. When a micro-type base station receives an EVDO access request containing an IMSI of the requesting access terminal, the micro-type base station will use the included IMSI to establish and identify a data connection to a PDSN.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: October 8, 2013
    Assignee: Spring Spectrum L.P.
    Inventors: Rajveen Narendran, Cesar Perez, Ryan Talley
  • Patent number: 8548504
    Abstract: A communication method of a macro base station including reporting information about a broadcast channel section in order to identify a femtocell in the macrocell, is provided. The macro base station receives position information of a mobile terminal and a request for information about neighboring femto base stations from the mobile terminal, when the mobile terminal identifies an accessible femto base station in the broadcast channel section. The macro base station generates a list of the neighboring femto base stations and information about the neighboring femto base stations based on the position information of the mobile terminal, and transmits the list and the information about the neighboring femto base stations to the mobile terminal.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: October 1, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung Hun Jang, Tae Soo Kwon, Hyun Ho Choi, Jong Bu Lim, Won Jae Shin
  • Patent number: 8548481
    Abstract: A communications base station is installed at a selected new location and the base station, prior to going “online” monitors the wireless traffic from other base stations within interference range of the new base station's coverage area. The new base station also monitors the wireless traffic between mobile devices within its coverage area and these other base stations. Based upon these monitored conditions, as well as other known conditions, the new base station then determines the transmitting parameter configuration it should imply in order to achieve a desired optimization between capacity and coverage area. After the new base station is online, a central control can monitor the entire network to determine if any additional changes are necessary and if so the new transceiver, or any other transceiver, can be instructed to monitor itself with respect to interference and to take corrective action to improve overall network coverage and capacity.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: October 1, 2013
    Assignee: Adaptix, Inc.
    Inventor: Douglas O. Reudink
  • Patent number: 8548468
    Abstract: A service method of a femtocell for simultaneously providing a plurality of femto services to a plurality of mobile stations, and a transmitter and receiver for the same. When a femto advanced base station supports a plurality of femtocell subscription types, and it simultaneously provides data services with different qualities to mobile stations having subscribed to different femtocells. The femtocell subscription type supported by the femto advanced base station is advertised to the mobile station through an identifier at a PHY level or an identifier at a MAC level. A CSG-closed femtocell provides a high-quality data service to limited subscribers, a CSG-open femtocell provides a relatively low quality data service to limited subscribers, and an OSG femtocell provides the lowest quality data service to all mobile stations irrespectively of subscription states.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: October 1, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung-Geun Jin, Sung Cheol Chang, Won-Ik Kim, Chul Sik Yoon
  • Patent number: 8538420
    Abstract: A single wireless cellular system provides cellular service using first and second radio bands, belonging to two different Operators, respectively. The first radio band is located higher in frequency than the second radio band. Subscriber Stations, associated with either of the Operators, or with a third Operator, may perform partial roaming between the two bands within the single wireless cellular system, in order to optimize data throughputs, coverage, or both.
    Type: Grant
    Filed: December 17, 2011
    Date of Patent: September 17, 2013
    Assignee: PureWave Networks, Inc
    Inventors: Dan Picker, Ronen Vengosh
  • Patent number: 8532665
    Abstract: A wireless telephony communications system includes at least one macro cell for communicating both voice and data with a mobile communications device across a first wireless link and at least one micro cell for communicating data with the mobile communications device across a second wireless communication link. Each micro cell communicates signaling information through the macro cell via a wireless link to a control element that manages the micro cells. Using a wireless link to communicate signaling between each micro cell and the control element in the UMTS system eliminates the need for a wired back haul link, thereby reducing access costs.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: September 10, 2013
    Assignee: Thomson Licensing
    Inventors: Jun Li, Alton Keel, Wen Gao, Shaily Verma
  • Patent number: 8532647
    Abstract: Provided is a method and apparatus for determining a downlink beamforming vector in a hierarchical cell communication system. Small base stations may determine transmit beamforming vectors of the small base stations so that interference from the small base stations may be reduced in a macro terminal. A macro terminal and small terminals may determine receive beamforming vectors based on the transmit beamforming vectors of the small base stations. A macro base station may determine a transmit beamforming vector based on effective channels to terminals using the receive beamforming vectors of the terminals.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: September 10, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won Jae Shin, Nam Yoon Lee, Won Jong Noh, Young Jun Hong, Hyun Ho Choi, Chang Yong Shin, Kyung Hun Jang
  • Patent number: 8532694
    Abstract: An authorization scheme controls whether an interface is established between communication nodes. Such a scheme may be used, for example, to determine whether to establish a direct interface (e.g., an X2 interface) between a pair of access points. A decision to establish a direct interface between nodes may be based on a node type of one or both of the nodes. A decision to establish a direct interface between nodes may be based on whether the nodes belong to the same group.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: September 10, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Rajarshi Gupta
  • Patent number: 8526962
    Abstract: In a mobile telecommunications system comprising a network of a plurality of cells and at least one user equipment device, the user equipment is arranged, when the user equipment re-configures itself to enter a new state or performs cell reselection, to read broadcast system information and, when the broadcast system information indicates a change in system information, to update the system information of the user equipment device.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: September 3, 2013
    Assignee: BlackBerry Limited
    Inventors: Andrew John Farnsworth, Gideon Roberts
  • Patent number: 8521214
    Abstract: A first amount of bandwidth is allocated to a first wireless device to send signal quality information to a base station. Based on a first indicator of wireless link conditions associated with the first wireless device, and a second indicator of wireless link conditions associated with a second wireless device, a second amount of bandwidth is allocated to the first wireless device to send signal quality information to the base station.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: August 27, 2013
    Assignee: Clearwire IP Holdings LLC
    Inventors: Sungki Park, Masoud Olfat, Dhaval Dipak Mehta
  • Patent number: 8520613
    Abstract: Techniques for optimizing presence information update requests for wireless devices on a wireless communication network by reducing the amount of access-network resources are provided. In an exemplary embodiment, presence information updates can be optimized by a presence module that is a single point of contact on a mobile device for presence requests from presence aware applications.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: August 27, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Mark A. Maggenti, Harleen K. Gill, Mohammed Ataur Rahman Shuman
  • Publication number: 20130217397
    Abstract: A system, method, and computer readable medium comprises receiving, by a femtocell system, a call origination from a user equipment performing a calling operation to a called telephone device generating a configuration management service request message and transmitting the configuration management service request message to a session initiation protocol to Internet operating system adapter (SIA), generating a channel assignment request by the SIA and transmitting the channel assignment request to the femtocell system, allocating a channel for the user equipment and transmitting the allocated channel to the user equipment, receiving an acknowledgement from the user equipment in receipt of the transmitted channel assignment, performing a service connection with the user equipment, creating a connection for an Internet Protocol Multimedia Subsystem, completing a call setup between the user equipment and the called telephone device via the allocated channel.
    Type: Application
    Filed: April 2, 2013
    Publication date: August 22, 2013
    Applicant: Airwalk Communications, Inc.
    Inventor: Airwalk Communications, Inc.
  • Patent number: 8515356
    Abstract: In a radio communication system (1), a lower-level station (10a) has: a lower-level station ID detection unit (13) which detects a lower-level station ID for identifying another lower-level station (10b), from a signal from the other lower-level station (10b); a group ID detection unit (12) which identifies a group ID for identifying a group to which the other lower-level station (10b) belongs; a measurement unit (15) which measures a channel utilization state of the other lower-level station (10b); a utilization probability update unit (19) which calculates a channel utilization amount for each lower-level station and a channel utilization amount for each group based on the lower-level station ID, group ID and channel utilization state, and updates a channel utilization probability which indicates the utilization probability of communication channels based on the channel utilization amount for each lower-level station and the channel utilization amount for each group; and a channel determination unit (20) wh
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: August 20, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Takefumi Yamada, Takahiro Asai