Frequency Reuse Scheme Patents (Class 455/447)
  • Patent number: 8736636
    Abstract: A system and method for providing augmented reality (AR) information to a mobile communication terminal in a mobile communication system is provided. If the mobile communication terminal is determined to have entered a service cell providing AR information, the mobile communication terminal transmits an AR information request including position information to a server. Upon receiving the AR information request signal, the server determines AR information including at least one tag pattern provided in the service cell and information associated with the tag pattern and transmits the AR information to the mobile communication terminal.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: May 27, 2014
    Assignee: Pantech Co., Ltd.
    Inventor: Young-Jo Kang
  • Patent number: 8738016
    Abstract: A wireless base station for performing wireless communication with a wireless terminal using a frequency bandwidth different from another adjacent wireless base station in a first time period and performing wireless communication with a wireless terminal using a frequency bandwidth shared with another adjacent wireless base station in a second time period and including a control unit that does not change a burst profile to be applied to an uplink transmission or assigns a burst profile corresponding to a wireless transmission rate equal to or less than a wireless transmission rate corresponding to an applied burst profile with respect to a wireless terminal used for wireless communication in the first time period.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: May 27, 2014
    Assignee: Fujitsu Limited
    Inventors: Keiichi Nakatsugawa, Junichi Suga
  • Patent number: 8738020
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: May 27, 2014
    Assignee: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Wenzhong Zhang, Kemin Li
  • Publication number: 20140141787
    Abstract: A radio communications system comprising a plurality of cells, each containing a base station and mobile terminals. Said system is able to manage group communications between different mobile terminals, allocating during the establishment of a group communication for each cell an uplink channel contained in an uplink carrier frequency and a downlink channel contained in a downlink carrier frequency. The system is able to manage a number of downlink channels per downlink carrier frequency strictly greater than a number of uplink channels per uplink carrier frequency.
    Type: Application
    Filed: July 4, 2012
    Publication date: May 22, 2014
    Applicant: Cassidian SAS
    Inventor: GĂ©rard Marque-Pucheu
  • Patent number: 8731567
    Abstract: A system and method for automatic fractional frequency reuse (FFR) planning are provided. A method for controller operations includes determining a group of frequency reuse modes, assigning at least one frequency reuse mode to a controller based on mutual relationship information, where the at least one frequency reuse mode is from the group of frequency reuse modes, and sharing the at least one frequency reuse mode with communications controllers coupled to the controller.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: May 20, 2014
    Assignee: Futurewei Technologies, Inc.
    Inventors: Liqing Zhang, Jianglei Ma, Zhijun Chao
  • Patent number: 8725159
    Abstract: A mobile communication system according to the present invention is a mobile communication system, in which a mobile station UE is configured to transmit and receive a signal to/from a radio base station eNB simultaneously using a first carrier of a frequency band F1 and a second carrier of a frequency band F2 higher than the frequency band F1, that is, the mobile station UE is configured to perform CA, wherein the radio base station eNB is configured to manage a cell #11 using the first carrier and a cell #21 using the second carrier, a coverage area of the cell #11 and a coverage area of the cell #21 are configured to be geographically superimposed with each other, and the coverage area of the cell #11 is configured to be larger than the coverage area of the cell #21.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: May 13, 2014
    Assignee: NTT Docomo, Inc.
    Inventors: Mikio Iwamura, Hiroyuki Ishii
  • Patent number: 8718656
    Abstract: A method for evaluating a wireless service network includes receiving information indicative of a wireless coverage area associated with each of a plurality of base stations within a geographic area. The method also includes determining a threshold performance requirement within the geographic area. The method additionally includes simulating a deployment of at least one femto base station within the geographic area. The method further includes determining at least a first performance parameter based on the simulated deployment of the at least one femto base station within the geographic area. The method further includes generating a deployment recommendation based on at least the first performance parameter and the threshold performance requirement. The deployment recommendation may indicate whether to deploy the at least one femto base station within the geographic area.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: May 6, 2014
    Assignee: Fujitsu Limited
    Inventors: Wei-Peng Chen, Teng-Sheng Moh, Masato Okuda
  • Patent number: 8718035
    Abstract: A method and device for performing Multi-Input Multi-Output transmission to a mobile terminal in the base station devices of a wireless communication system is provided. Each base station device determines the sector coordination group used at a certain frequency band according to system settings. Each base station device only performs multiple-sector (-cell) collaborative MIMO transmission in the sector coordination group which includes the sectors governed by the base station device. A simple and effective method is provided for realizing the multiple-sector (-cell) MIMO technology, its advantages including but not limited to there being a reduced amount of information exchanged between sectors (cells), which facilitates implementation and management, and good performance in controlling interface between sectors (cells).
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: May 6, 2014
    Assignee: Alcatel Lucent
    Inventors: Keying Wu, Yang Song, Liyu Cai, Dong Li
  • Patent number: 8718657
    Abstract: A mobile communications system having improved spectral efficiency, and methods and apparatus to achieve this improved spectral efficiency. In the mobile communications system communication with a plurality of mobile terminals is provided by a base station. Within the system terminals are adapted to communicate with one or more adjacent similar terminals to establish groups of terminals, called micro-cells. Each terminal within a micro-cell receives signals from the base station and then performs a first processing step on these signals. These processed signals are shared with all the other terminals within the micro-cell. Each terminal then performs a second processing step on the information it has received from all the other terminals within the micro-cell which enables it to derive a signal intended for reception by that terminal. The technique is applicable to both the uplink and the down link and also to peer to peer communication.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: May 6, 2014
    Assignee: Apple Inc.
    Inventors: James M. Naden, Chris Ward, Andrew W. Jeffries
  • Publication number: 20140120924
    Abstract: A method and apparatus for selecting a carrier in a wireless communication system is provided. a pico eNodeB (eNB) transmits a carrier information request message including a request of information on carriers used by a macro eNB, receives a carrier information response message as a response of the carrier information request message, the carrier information response message including the information on carriers used by the macro eNB, and selects a primary cell (PCell) of the pico eNB based on the received information on carriers used by the macro eNB.
    Type: Application
    Filed: July 20, 2012
    Publication date: May 1, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Gene Beck Hahn, Jae Hoon Chung
  • Patent number: 8711670
    Abstract: One aspect of the present invention relates to a base station apparatus in a mobile communication system, comprising: an acquisition unit configured to receive an uplink signal from a user equipment and acquire channel condition information and an average value of the channel condition information for each of one or more frequency resource blocks; a reference metric calculation unit configured to calculate a reference metric indicative of priority of assignment of the frequency resource blocks to the user equipment based on the channel condition information and the average value of the channel condition information acquired by the acquisition unit; a modification unit configured to modify the reference metric calculated by the reference metric calculation unit with a first parameter to generate a modified metric; a scheduler configured to compare the modified metrics of the individual frequency resource blocks generated by the modification unit and determine an assignment plan of radio resources; and a transm
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: April 29, 2014
    Assignee: NTT Docomo, Inc.
    Inventors: Kenichi Higuchi, Daisuke Nishikawa
  • Patent number: 8712462
    Abstract: An apparatus and method are disclosed for determining the optimal bandwidth fractions for all the users in each frequency band in a wireless communication system to maximize the net sum of user utilities. User utilities are functions of average rates of users, where different averaging rules can be used for different users. The standard approach of computing an optimal scheduler strategy involves the solution of a convex optimization problem that has a complexity on the order of O(N3) for N flows. This approach is not feasible for online implementation having a large number of flows. The method of the present work employs an efficient computational algorithm that obtains the optimal bandwidth fractions in O(N) time. This feature makes the method suitable for implementation in wideband cellular systems like LTE (Long Term Evolution) and UMB (Ultra Mobile Broadband).
    Type: Grant
    Filed: June 19, 2010
    Date of Patent: April 29, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Ritesh Kumar Madan, Siddharth Ray, Niranjan N. Ratnakar, Arnab Das
  • Patent number: 8712458
    Abstract: A radio communication system including: a base station apparatus; and a terminal apparatus, wherein the base station apparatus and terminal apparatus performs radio communication, the base station apparatus includes: a scheduler which divides a radio frequency band used for the radio communication into first and second sub-bands of which respective bandwidths are different, assigns the divided first or second sub-band for transmitting user data to the terminal apparatus or for transmitting the user data from the terminal apparatus, and generates assignment information indicating which of the first or second sub-band is assigned to each terminal apparatus; and a transmitter which transmits the assignment information to the terminal apparatus, and the terminal apparatus includes a receiver which receives the assignment information.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: April 29, 2014
    Assignee: Fujitsu Limited
    Inventor: Yoshihiro Kawasaki
  • Patent number: 8700078
    Abstract: The invention has a step where a transmitting station in a second radio communication system determines whether transmission of a second radio communication system signal using a shared frequency band is possible or not based on load information of a first radio communication system broadcast from a base station in the first radio communication system, a step where the transmitting station in the second radio communication system calculates predicted interference power caused in a receiving station in the first radio communication system by the second radio communication system signal transmitted using the shared frequency band, and a step where the base station in the first radio communication system increases an allowable interference level of a first radio communication system signal transmitted using the shared frequency band based on the predicted interference power broadcast from the transmitting station in the second radio communication system.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: April 15, 2014
    Assignee: NTT DoCoMo, Inc.
    Inventors: Hiroki Harada, Hiromasa Fujii, Takahiro Asai, Tomoyuki Ohya
  • 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: 8694011
    Abstract: A method of managing communication in the wireless communication network having a plurality of Base Stations (BSs) is provided. Each BS provides communication to one or more Mobile Stations (MSs) in an associated cell. The method includes re-using at a BS, channel allocated to collocated BSs to communicate with MSs located in a first predetermined region in a cell of the BS. The method further includes scheduling MSs located in the first predetermined region based on the position of each MS relative to the BS. The MSs are scheduled using one or more of channels allocated to the collocated BSs and a native channel of the BS. Further, the method includes scheduling MSs located in a second predetermined region based on the position of each MS relative to the BS. The MSs in the second predetermined region are scheduled using the native channel of the BS.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: April 8, 2014
    Assignee: WiChorus Inc.
    Inventors: Rehan Jalil, Mustafa Ergen, Tony Mak
  • Patent number: 8688097
    Abstract: A method and apparatus for reconfiguring an operational frequency and associated bandwidth used by a femto-cell base station are disclosed. The femto-cell is configured to provide coverage to a User Equipment by connecting to a core telecommunications network via a gateway device. The method includes checking a list of frequencies and associated bandwidths available to a wireless network interface of the femto-cell base station and determining if any of the frequencies in the list matches the operational frequency supported by the User Equipment to which the femto-cell base station is providing coverage. If at least one frequency matches the one supported by the User Equipment, a second frequency is selected from the list of frequencies, said second frequency being established as the operational frequency of the femto-cell base station.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: April 1, 2014
    Assignee: Vodafone Group PLC
    Inventors: Luis Gabriel Zas Couce, Jose Angel Perez De La Rosa, Francisco Javier Dominguez Romero
  • 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: 8688131
    Abstract: An RF connection matrix may include first and second carrier-specific RF connection matrix modules. The first carrier-specific RF connection matrix module can be adapted to route a first downlink transmission to one or more remote antenna units for transmission on a first carrier. The second carrier-specific RF connection matrix module can be adapted to route a second downlink transmission to one or more remote antenna units for transmission on a second carrier. Methods for facilitating simulcasting and de-simulcasting may include receiving a signal associated with a sector ID, which signal includes a first downlink transmission for a first carrier and a second downlink transmission for a second carrier. The first downlink transmission can be routed to one or more remote antenna units for transmission on the first carrier. The second downlink transmission can be routed to one or more remote antenna units for transmission on the second carrier.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: April 1, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Joseph B. Soriaga, Christopher Gerard Lott, Rashid Ahmed Akbar Attar, Rohan Salvi
  • Patent number: 8688112
    Abstract: Systems and methodologies are described that effectuate or facilitate detecting a cell (serving or neighboring cell) in multichannel wireless communication environments. In accordance with various aspects set forth herein, systems and/or methods are provided that receive signals from multiple cells and identify candidate cells based at least in part on the received signals, compare signal metrics for each of the candidate cells, select signal metrics associated with each of the candidate cells, and compare signal metrics to identify proximate base stations located within a candidate cell.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: April 1, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Yuan Shen, Tao Luo, Juan Montojo
  • Patent number: 8688136
    Abstract: A wireless communication network includes an apparatus and method for dynamically allocating frequencies of a femto Base Station (BS). An operation of the femto BS includes measuring received signal strength on system Frequency Allocations (FAs) of a plurality of macro BSs, determining maximum received signal strengths for the respective FAs, and determining an available FA set by using a result obtained from comparison between the maximum received signal strengths for the respective FAs with a first threshold.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: April 1, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Ki-Young Han, Byoung-Ha Yi, Jae-Hyok Lee, Hyon-Goo Kang
  • Patent number: 8682335
    Abstract: A conventional wireless device constantly measures the signal strength of its server base station and the strength of signals from surrounding base stations for handoff purposes. The wireless device transmits this information to its serving base station, which discards the information a short time afterward, following handoff. The present system and method store the formerly discarded information in one of several existing network elements or in a separate computer system. This information is used to generate a carrier to interference ratio, which indicates the level of interference between station pairs, and to also generate a carrier to interference matrix, including identifying potential interference for each station pair. The frequency of occurrences during predetermined desired periods of time and the volume of traffic affected by each level of interference may also be calculated. This provides comprehensive, continuous, real-time information for wireless frequency planning.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: March 25, 2014
    Assignee: AT&T Mobility II LLC
    Inventor: Dipesh Hasmukhlal Shah
  • Patent number: 8675509
    Abstract: The scheduler in a base station needs CQI information from a terminal for all re-use sets every 5 ms. to decide on which re-use set to schedule a given terminal. For MIMO users, the problem is that the CQI cannot be reconstructed for all re-use sets, using the current design. Solution: (1) For Multiple Code Word MIMO users, a MIMO VCQI connection layer message enables the base station to reconstruct the MIMO-CQI for all reuse sets on a packet-by-packet basis. This will enable dynamic scheduling (RESTRICTIVE REUSE) gains. (2) For Single Code Word users, dynamic RESTRICTIVE REUSE can be obtained by changing the CQI reporting format, and also sending a MIMO-VCQI connection layer message. (3) For Single Code Word design, quasi-static scheduling gains can be obtained by sending a MIMO-VCQI connection layer message.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: March 18, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Hemanth Sampath, Tingfang Ji
  • Patent number: 8676126
    Abstract: The present invention relates to an apparatus and to a method for acquiring downlink channel information in a radio communication system having a multi-cell/sector structure, comprising receiving channel quality information of a mobile station and loading information of cells/sectors adjacent to the mobile station, checking the carrier to interference and noise ratio (CINR) contained in the channel quality information, checking the average loading factor of the adjacent cells/sectors contained in the loading information, summing the average loading factors for each of the adjacent cells/sectors to calculate an effective loading factor, and compensating for the CINR with the effective loading factor to acquire channel information of the base station.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: March 18, 2014
    Assignee: Intellectual Discovery Co., Ltd.
    Inventors: Jae-Hyun Ahn, Jung-Nam Yun, Jun-Seong Park
  • 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: 8676128
    Abstract: A method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication system. A first signal is received over a first channel and a second signal is received over a second channel, where the second signal is received at a higher signal power level than said first signal. A signal-to-noise ratio (SNR) of the second signal is measured, and the SNR of the first signal is determined based at least in part upon the measured SNR of the second signal.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: March 18, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Durga P. Malladi
  • 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: 8670773
    Abstract: A control device, which is placed in a communication system in which the same resource is used in a plurality of communication areas, includes a communication function unit having a function of communicating with a plurality of user equipments existing in at least one communication area under control of the control device, and a resource allocation unit that, when an uplink resource of a communication area adjacent to one communication area is allocated to a first user equipment, allocates the same uplink resource of the one communication area to a second user equipment with an interference power to the adjacent communication area equal to or lower than an interference threshold and a communication quality equal to or higher than a quality threshold.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: March 11, 2014
    Assignee: NEC Corporation
    Inventor: Takahiro Nobukiyo
  • Patent number: 8670368
    Abstract: A broadcast retransmitting method, a broadcast retransmitting apparatus, a relay apparatus and a broadcast retransmitting system using the same, are provided. The broadcast retransmitting apparatus includes a demodulation unit which receives and demodulates a modulated broadcast, a modulation unit which modulates the demodulated broadcast, a spectrum sensing unit which detects an available band through spectrum sensing, and a control unit which retransmits the modulated broadcast to at least one surrounding apparatus.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: March 11, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-deok Chang, Jung-jin Kim, Sun-bum Han
  • Patent number: 8670780
    Abstract: A method and apparatus are provided for facilitating the creation of an intra-system interface between systems operating in an unlicensed spectrum, such as between respective access points of first and second LTE systems that use the same radio resources within an unlicensed spectrum, such as within the TV white spaces. In the context of a method, configuration messages may be caused to be sent to first and second systems regarding creation of an intra-system interface. The method may also receive configuration message responses including address information for first and second access points of the first and second systems, respectively. The method may additionally cause a message to be sent to the first system to trigger the first system to initiate establishment of the intra-system interface with the second system.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Sami-Jukka Hakola, Timo Koskela, Samuli Turtinen
  • Patent number: 8660566
    Abstract: The present invention relates to a method for transmitting control information in a multi-cell based mobile communication system, the method comprising: extracting information on a fractional frequency reuse (FFR) pattern that represents whether terminal transmission power for a plurality of frequency resource groups is boosted to apply uplink fractional frequency reuse (UL FFR) to a particular cell; and broadcasting power control information that is configured separately by each of the plurality of frequency resource groups based on the extracted FFR pattern.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: February 25, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Wook Bong Lee, Dong Cheol Kim
  • Patent number: 8660568
    Abstract: A method and apparatus for interference control in a wireless communication system with a hierarchical cell layout are provided. The method includes acquiring edge-bands of femto BSs within an area of the macro BS, determining whether an MS receiving a service from the macro BS is located in an area adjacent to the femto BS, and, if the MS is located in the area adjacent to the femto BS, allocating, to the MS, an edge-band of the femto BS to which the MS is adjacent.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: February 25, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Sang-Min Lee, Yung-Soo Kim, Tak-Ki Yu
  • Patent number: 8660565
    Abstract: If a mobility aid develops a problem, the person controlling the aid may be unable to move or request assistance or call for help. Furthermore, even if someone was alerted to their predicament, that person may not be able to identify and thus rectify the problem expediently without expert assistance. A system (10) for monitoring for a fault in a mobility aid (12) includes a fault detector for detecting a fault in the mobility aid. The system also includes a signal generator (14) for generating a signal representative of the fault is also provided. A wireless transmitter (16) for transmitting fault signal, and a wireless receiver (18) for receiving the fault signal are also provided. The receiver is also operable for causing an alert to be sent to an operator that the mobility aid (12) requires attention.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: February 25, 2014
    Assignee: Handicare Accessibility Limited
    Inventor: David Hall
  • Patent number: 8660050
    Abstract: Provided are a method and an apparatus for transmitting multicast broadcast service (MBS) data in a wireless communication system using fractional frequency reuse (FFR). The method comprises: allocating, to a common network zone, part or whole of a frequency partition where FRF (frequency reuse factor) is 1, from among a plurality of frequency partitions; and transmitting MBS data in the common network zone.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: February 25, 2014
    Assignee: LG Electronics Inc.
    Inventors: Dong Cheol Kim, Yeong Hyeon Kwon, Jin Sam Kwak, Sung Ho Moon, Seung Hee Han
  • Publication number: 20140051452
    Abstract: A method for determining for a plurality of users of a wireless cellular network transmitters of the wireless cellular network used for determining candidate rate configurations for serving the users is described, wherein the transmitters of the wireless cellular network operate in accordance with the fractional reuse scheme allocating distinct resource blocks to respective transmitter partitions, each partition including transmitters having assigned the same resource block, and wherein for each user, an active transmitter set is determined by selecting from each transmitter partition a transmitter as an active transmitter in accordance with a predefined criterion.
    Type: Application
    Filed: October 25, 2013
    Publication date: February 20, 2014
    Applicant: NTT DOCOMO, Inc.
    Inventors: Andreas DOTZLER, Wolfgang UTSCHICK, Guido DIETL
  • Patent number: 8654704
    Abstract: A system and method for distributed control of spectrum power in a multi-cell communication system are provided. A plurality of cells included in a multi-cell communication system may be grouped into a plurality of groups. Cells included in a first group may iteratively calculate spectrum powers to perform dynamic spectrum management (DSM) scheme in calculation sub-frames. The cells included in the first group may also perform a user scheduling. Spectrum powers determined by cells included in a second group and user scheduling results of the cells in the second group may be held static.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: February 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae Soo Kwon, Won-Jae Shin, Chang Yong Shin
  • Patent number: 8655349
    Abstract: A method and apparatus for operating a femto-cell base station are disclosed. The femto-cell base station is configured to provide coverage to a User Equipment by connecting it to a core telecommunications network using a first frequency belonging to a first radio access technology. The method includes detecting that a fixed network connection of a femto-cell base station is not operative, and, in response to such failure, scanning frequencies in a second radio access technology available to a wireless network interface of the femto-cell base station, said second radio access technology being different than the first radio access technology. If there is any frequency available in said second radio access technology, said frequency in said second radio access technology is established as the operational frequency of a cellular wireless network connection established by the wireless network interface.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: February 18, 2014
    Assignee: Vodafone Group PLC
    Inventors: Luis Gabriel Zas Couce, Jose Angel Perez De La Rosa, Francisco Javier Dominguez Romero
  • 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: 8644838
    Abstract: A method for acquiring FFR power pattern of Frequency Partitions (FPs) at a mobile station (MS) in a wireless communication system using Fractional Frequency Reuse (FFR) is disclosed. The method includes receiving a preamble from a base station (BS); and acquiring a FFR power pattern for a reuse-1 partition and reuse-N partitions using the received preamble, wherein the FFR power pattern is determined based on a segment identifier (ID), the reuse-N partitions include N frequency partitions, each frequency partition has a power level with a range of FP1_power level to FPN_power level, a power-boosted FP in the reuse-N partitions is a partition whose power level is the FP1_power level.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: February 4, 2014
    Assignee: LG Electronics Inc.
    Inventors: Wook Bong Lee, Han Gyu Cho, Ja Ho Koo, Bin Chul Ihm, Jin Soo Choi
  • Publication number: 20140031049
    Abstract: A wireless communications system is disclosed. The system comprises a baseband processing unit (BBU) pool including one or more baseband processing units (BBUs), and a plurality of remote radio heads (RRHs) connected to the BBU pool through a front-haul network, wherein the wireless communications system has a plurality of sectors, each of which includes one or more small cells, each of which is deployed by one of the plurality of RRHs, wherein a BBUs is mapped to two or more RRHs in a sector in a one-to-many configuration, and a BBU is mapped to a single RRH in a sector in a one-to-one configuration, and wherein a combination of the one-to-one configuration and the one-to-many configuration is applied to each sector. Other systems, apparatuses, and methods also are disclosed.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 30, 2014
    Applicant: NEC Laboratories America, Inc.
    Inventors: Karthikeyan Sundaresan, Cheng Liu, Mustafa Arslan, Meilong Jiang, Sampath Rangarajan
  • Patent number: 8639256
    Abstract: Systems, methods, devices, and computer program products are described for adaptive clustering. Serving cells may receive measurement information from mobile devices, and may each form reporting sets including measurement information for various cells. A CoMP (coordinated multi-point) control unit may receive the measurement information from each of a number of serving cells. The received measurement information may be aggregated for a population of the mobile devices. Based on the aggregated measurement information, cell clusters may be formed to perform coordinated transmissions, each including a different subset of the cells. An indication of the determined cell clusters may be transmitted to respective cells.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: January 28, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Andrea Garavaglia, Ralf Weber, Matthias Schulist, Stefan Brueck
  • Patent number: 8633807
    Abstract: An RF tag reader and writer is provided which includes: a communication unit that communicates with one or more RF tags as an information acquisition target using an anti-collision method of avoiding a collision between signals and that performs an acquisition process of acquiring tag information which is information stored in the one or more RF tags; and a communication success rate calculator that calculates a communication success rate of the communication unit with the one or more RF tags on the basis of the number of times by which the communication unit successfully acquires the tag information from the one or more RF tags within a predetermined period and the number of times by which the communication unit performs a communication process with the one or more RF tags in a state where the collision between signals is avoided within the predetermined period.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: January 21, 2014
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventor: Kouichi Sano
  • 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: 8630252
    Abstract: A mobile station apparatus for transmitting feedback information in a wireless communication system and method thereof are disclosed. According to the present invention, feedback information is transmitted by a mobile station in a wireless communication system. The present invention includes receiving an allocation of a specific frequency partition from a base station by a fractional frequency reuse (FFR), generating a prescribed type feedback information on the specific frequency partition by measuring a channel quality of the specific frequency partition, and transmitting the feedback information on the specific frequency partition to the base station. Preferably, the mobile station can transmit feedback information on a frequency partition unallocated by the base station based on the received feedback request information. Accordingly, feedback overhead can be decreased in feedback transmission.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: January 14, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Bin Chul Ihm, Jin Sam Kwak
  • Patent number: 8630654
    Abstract: A mobile communication system where a mobile station apparatus transmits reception quality information to a base station apparatus, the reception quality information indicating quality of a signal received from the base station apparatus, characterized in that the base station apparatus transmits information for instructing transmission of reception quality information without uplink data included in an uplink data transmission permission signal, and the mobile station apparatus transmits reception quality information without uplink data according to the information for instructing transmission of reception quality information without uplink data.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: January 14, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
  • Patent number: 8620382
    Abstract: An apparatus and method of facilitating cooperation within a cognitive radio communication system. The cooperation system facilitated in the communication system by another communication system. The apparatus include: a receiver to receive an uplink signal from a mobile station and a cooperation signal from a second communication system, wherein the cooperation signal is associated with the uplink signal; an evaluator to evaluate a contribution of the cooperation signal with respect to detection of the uplink signal; and a radio resource management unit to control an available radio resource for the second system according to the contribution of the cooperation signal.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: December 31, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chan Soo Hwang
  • Patent number: 8615246
    Abstract: The present invention provides a method for receiving information on a network configuration. The present invention is to allow a terminal to acquire accurate information on a neighbor cell. Furthermore, the present invention is to remove duplicated information from the information message on a neighbor cell, for instance, Neighboring Cell Information, thereby allowing an effective configuration thereof and preventing from using network resources wastefully.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: December 24, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin-Sook Ryu, Ji-Woong Lee, Yung-Mi Kim
  • Patent number: 8611914
    Abstract: According to a method for operating a radio communication system, a first radio station decides about the assignment of first radio resources to a user terminal and thereafter assigns the first radio resources to the user terminal. Before deciding about the assignment of the first radio resources to the user terminal, the first radio station transmits information to a second radio station regarding the first radio station's future assignment of the first radio resources. Radio stations carry out the method.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: December 17, 2013
    Assignee: Nokia Siemens Networks GmbH & Co. KG
    Inventors: Ruediger Halfmann, Andreas Lobinger, Jijun Luo
  • Patent number: 8605654
    Abstract: Provided are an apparatus, system, and method for facilitating wireless communication between a hub and a mobile terminal via a remote radio module. The remote radio module includes a first transceiver operable to wirelessly communicate with the mobile terminal, a second transceiver operable to wirelessly communicate with the hub that is coupled to a core network, and a processor for executing instructions stored in memory. The instructions include instructions for receiving a signal from the hub at a first carrier frequency and processing the signal so that the signal can be retransmitted to the mobile terminal at a second carrier frequency different from the first carrier frequency.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: December 10, 2013
    Assignee: Apple, Inc.
    Inventors: Steve Beaudin, Carl Peter Conradi
  • Publication number: 20130324136
    Abstract: In a communication system, a first cell that covers a wide region includes, in a cover region thereof, a second cell that covers a smaller region than the first cell, one first terminal device or more positioned in the first cell receive a signal on which precoding has been performed and that is transmitted by a first base station apparatus that controls the first cell, and one second terminal device or more positioned in the second cell receive a signal on which precoding has been performed and that is transmitted using the same frequency as in the first cell by a second base station apparatus that controls the second cell. The communication system determines the number of streams to be transmitted by the second base station apparatus on the basis of information regarding the number of streams to be transmitted by the first base station apparatus. As a result, in a system in which interference between cells exists, interference may be reduced with a simple structure using transmit and receive filters.
    Type: Application
    Filed: January 31, 2012
    Publication date: December 5, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kozue Hirata, Shinpei Toh