Including Power Control Patents (Class 370/318)
  • Patent number: 8644211
    Abstract: One embodiment of the present invention provides a system including a mobile device and a content-retrieving agent for facilitating energy-efficient content retrieval. During operation, the mobile device receives a request for a piece of content from a user. In response to the request, the mobile device forwards the request to the content-retrieving agent which is configured to obtain the requested content from a remote device on behalf of the mobile device. The system allows the mobile device's receiver to be placed in an energy-saving sleep mode when the content-retrieving agent is obtaining the requested content for the mobile device and is not transmitting the content to the mobile device. The system allows the mobile device's receiver to wake up when the content-retrieving agent is transmitting the content to the mobile device. The mobile device receives the content from the content-retrieving agent.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: February 4, 2014
    Assignee: Palo Alto Research Center Incorporated
    Inventor: Van L. Jacobson
  • Patent number: 8638711
    Abstract: A system and method enable wireless user equipment (UE) to undergo a serving radio network subsystem (SRNS) relocation to a radio network controller (RNC) that does not support a fast dormancy feature while maintaining synchronization with the packet-switched domain of the core network. The UE is made aware of whether the target RNC supports the fast dormancy feature by way of an indication provided to the UE in a reconfiguration message provided by the source RNC, that is, the RNC to which the UE was connected prior to the SRNS relocation. In this way, the UE can behave accordingly whether or not the target RNC supports the fast dormancy feature.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: January 28, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Kiran KishanRao Patil, Liangchi Hsu, Rohit Kapoor, Sharad Deepak Sambhwani, Aziz Gholmieh
  • Publication number: 20140022984
    Abstract: This invention aims to present a smart and dynamic power amplifier module that features both power combining and power sharing capabilities. The proposed flexible power amplifier (PA) module consists of a pre-processor, N PAs, and a post-processor. The pre-processor is an M-to-N wavefront (WF) multiplexer (muxer), while the post processor is a N-to-M WF de-multiplexer (demuxer), where N?M?2. Multiple independent signals can be concurrently amplified by a proposed multi-channel PA module with a fixed total power output, while individual signal channel outputs feature different power intensities with no signal couplings among the individual signals. In addition to basic configurations, some modules can be configured to feature both functions of parallel power amplifiers and also as M-to-M switches. Other programmable features include configurations of power combining and power redistribution functions with a prescribed amplitude and phase distributions, as well as high power PA with a linearizer.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 23, 2014
    Inventor: Donald C.D. Chang
  • Patent number: 8634825
    Abstract: Aspects relate to temporarily disabling a message or a set of messages based on the detection that an uplink transmission power is reaching maximum power or is at maximum power. The detection can be based on observing that one or more uplink transmissions are near, or at, the maximum power. The message or set of messages that are disabled can be a non-call critical message(s), such as a non-signaling radio bearer related message(s). Disabling the message or set of messages can conserve resources, which can be utilized for call critical messages, which can include signaling radio bearer related messages, call maintenance messages, voice communications, and so forth. Disabling the message or set of messages can also mitigate the chances of a call being disconnected due to power demands that exceed the maximum power available.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: January 21, 2014
    Assignees: AT&T Intellectual Property I, L.P., AT&T Mobility II LLC
    Inventors: Ernest Tsui, Choonghor Woon
  • Patent number: 8634355
    Abstract: A wireless network includes base stations and mobile stations. The base stations determine burst sizes and partitions, and signal this information to the mobile stations.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: January 21, 2014
    Assignee: Intel Corporation
    Inventors: Tom Harel, Yuval Lomnitz, Changlong Xu
  • Patent number: 8630675
    Abstract: A method for controlling the transmission power of a terminal in a cellular telecommunications network, in which the number of transmission resources is greater than the number of users is disclosed. In one aspect, the number of additional transmission resources necessary for the communication of the user if a modulation and coding scheme with minimal spectral efficiency is used, and whether these resources are available, are determined, they are allocated to the user, and the transmission power of the terminal is set to the transmission power enabling the required quality of service to be obtained by using the predetermined modulation and coding scheme.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: January 14, 2014
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventor: Emilio Calvanese Strinati
  • Patent number: 8626227
    Abstract: In accordance with embodiments of the present disclosure, a method and system for allocating power in a transmission system may be provided. A method may include determining a channel quality for each of a plurality of subcarriers, wherein the channel quality for each individual subcarrier is equal to the signal-to-interference and noise ratio for the individual subcarrier divided by the power allocated to the subcarrier. The method may also include allocating power to a subset of the plurality of subcarriers, wherein each individual subcarrier of the subset has a channel quality greater then each individual subcarrier not of the subset. The method may further include transmitting a signal on each of the individual subcarriers of the subset.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: January 7, 2014
    Assignee: Fujitsu Limited
    Inventors: Chenxi Zhu, Wei-Peng Chen
  • Patent number: 8626224
    Abstract: Exemplary methods and systems for determining initial transmit power are disclosed herein. An exemplary method involves a mobile station (1) determining an interference level for the forward link; (2) if the determined interference level is greater than a threshold interference level, then determining an interference correction factor to be equal to the minimum of (a) the threshold interference level minus the determined interference level and (b) a predetermined constant; (3) if the determined interference level is less than the threshold interference level, then determining the interference correction factor to be equal to the minimum of: (a) the maximum of: (i) the threshold interference level minus the determined interference level, and (ii) zero, and (b) a predetermined constant; (4) using the determined interference correction factor as a basis for determining an initial transmit power level; and (5) transmitting an initial access probe to the base station at the determined initial transmit power level.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: January 7, 2014
    Assignee: Sprint Spectrum L.P.
    Inventors: Sachin R. Vargantwar, Bhagwan Khanka, Deveshkumar N. Rai
  • Patent number: 8626223
    Abstract: System(s) and method(s) are provided to manage signaling in a femto cell access point. A pilot signal power profile, or pilot signal gating, determines transmitted a time-dependent pilot signal power. The power profile displays a duty cycle well below 100% and a power depth, which is the amplitude between maximum and minimum pilot signal power, determined partially upon radio link conditions. The time-dependent power profile can be established through a schedule based at least in part on attachment data or subscriber input; machine-learning method facilitate inferring the schedule. Pilot signal gating profile can be reused in a femto cell deployment to broaden femto cell identification and thus facilitate macro-to-femto handover.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: January 7, 2014
    Assignee: AT&T Mobility II LLC
    Inventors: Arthur Richard Brisebois, Kurt Donald Huber
  • Patent number: 8625407
    Abstract: A virtual chassis includes two or more physical chassis and operates as a single, logical device. Each of the two or more physical chassis include two route processor modules (RPM) and each RPM is assigned a first and a second role within the virtual chassis. The first role is a physical chassis level role and the second role is a virtual chassis level role. The RPMs operate in coordination such that the failure of any one of the RPMs results in one or more other RPMs taking over the first and second roles of the failed RPM.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: January 7, 2014
    Assignee: Force10 Networks, Inc.
    Inventors: Janardhanan P. Narasimhan, Sanjeev Agrawal, Purushothaman Nandakumaran, Joyas Joseph
  • Patent number: 8625539
    Abstract: A method and system for obtaining reverse channel resources for a mobile device, the method filtering a closed loop correction power value; calculating a data rate utilizing the filtered closed loop correction power value; and sending a supplemental channel request message, including the calculated data rate, to a base station transceiver system.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: January 7, 2014
    Assignee: BlackBerry Limited
    Inventors: Rakesh Gupta, Asif Hossain
  • Patent number: 8626229
    Abstract: The present invention relates to a centralized power allocation method in a wireless telecommunication system comprising at least a first couple of terminals, consisting of a first transmitting terminal and a first receiving terminal, and a second couple of terminals, consisting of a second transmitting terminal and a second receiving terminal. A control node partitions the interference diagram between the communication of the first couple and the communication of the second couple, into different areas, each area being associated to a type of processing of the interference. The control node calculates the minimum power curve for each communication in each said area. The power values to be allocated are given by the coordinates of the point of intersection of both curves in said diagram.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: January 7, 2014
    Assignee: Commissariat à l'énergie atomique et aux énergies alternatives
    Inventors: Cédric Abgrall, Emilio Calvanese Strinati
  • Patent number: 8619659
    Abstract: A method of providing a point-to-point multicast service for transmitting data from a network element to a plurality of terminals in a communication system. The method includes transmitting a first message including service available information from the network element to the plurality of terminals, and transmitting a second message including radio bearer information from the network element to the plurality of terminals. The first message includes a pointer to the radio bearer information.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: December 31, 2013
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Kook-Heui Lee, Gert-Jan Van Lieshout, Himke Van Dervelde
  • Patent number: 8620332
    Abstract: The use of multiple states of mobile communication device operation to allow a single base station to support a relatively large number of mobile nodes is described. The various states require different amounts of communications resources, e.g., bandwidth. Four supported states of operation are an on-state, a hold-state, a sleep-state, and an access-state. Each mobile node in the on-state is allocated communication resources to perform transmission power control signaling, transmission timing control signaling and to transmit data as part of a data uplink communications operation. Each mobile node in the hold-state is allocated communication resources to perform transmission timing control signaling and is provided a dedicated uplink for requesting a state transition and a shared resource for transmitting acknowledgements. In the sleep state a mobile node is allocated minimal resources and does not conduct power control signaling or timing control signaling. Data may be received in the on and hold states.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: December 31, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Junyi Li, Sathyadev Uppala
  • Patent number: 8620372
    Abstract: A method and apparatus for transport format selection in a mobile wireless communication device. During a simultaneous voice and data call, the mobile wireless communication device selects a transport format for proper uplink data transmission. Simultaneous voice and data calls require higher uplink transmit power than voice only calls. The mobile wireless communication device selects a transport format based on the uplink transmit power level. At higher transmit power levels, minimum or zero data rates are chosen to maintain sufficient power for simultaneous voice. Transmit format is specified using a transmit format combination indicator.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: December 31, 2013
    Assignee: Apple Inc.
    Inventors: Venkatasubramanian Ramasamy, Giri Prassad Deivasigamani, Sharad Garg
  • Patent number: 8619657
    Abstract: Embodiments of the present disclosure include a system for managing cost in a wireless enabled advanced metering infrastructure (AMI). The system includes a remote server, a wide area network, and an access point device. The system further includes wireless enabled meters coupled to each other and to the access point through a neighborhood area network (NAN). The system includes datasinks. Each datasink is a wireless enabled meter capable of being a data coordinator and capable of receiving metering information from the sensors, processing metering information, and transmitting metering information to the access point. Moreover, each wireless enabled meter is capable of being a routing node and an endpoint node. Also, a first set of wireless enabled meters are configured to be routing nodes and a second set of wireless enabled meters are configured to be endpoint nodes based on a graph theoretic algorithm to reduce the cost of the AMI.
    Type: Grant
    Filed: May 20, 2012
    Date of Patent: December 31, 2013
    Inventors: Arnab Das, Santanu Das
  • Patent number: 8615266
    Abstract: The present invention concerns a method for adjusting the transmission power of signals transferred by or to a first base station, the first base station being located in the cell of a second base station, the first base station: transfers a first message to the second base station, receives a message comprising information representative of the path between the first base station and the second base station, receives messages transferred by the second base station to mobile terminals, information comprised in at least one message enabling the determination of the coverage of the second base station, computing a metric from both information, adjusting, according to the computed metric, the transmission power of the signals transferred by the first base station to at least a mobile terminal and/or the transmission power of the signals transferred to the first base station by at least one mobile terminal.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: December 24, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hervé Bonneville, Loïc Brunel, Damien Castelain, Nicolas Gresset, Mourad Khanfouci, David Mottier
  • Patent number: 8615277
    Abstract: An electronic device includes a first functional block, a second functional block, and a control circuit. The first functional block has a first wake-up guard time requirement. The second functional block has a second wake-up guard time requirement which is different from the first wake-up guard time requirement. The control circuit is coupled to the first functional block and the second functional block, and implemented for selectively controlling the first functional block to switch from a normal mode to a power-saving mode by referring to the first wake-up guard time requirement, and selectively controlling the second functional block to switch from the normal mode to the power-saving mode by referring to the second wake-up guard time requirement.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: December 24, 2013
    Assignee: Mediatek Inc.
    Inventors: Ying-Ting Yang, Chiao-Chi Huang
  • Patent number: 8611269
    Abstract: Each of a plurality of network nodes in an ad hoc mesh network utilizes a data communication device that includes a two-way communications component, comprising a first receiver and transmitter, and a second receiver. The second receiver activates the communications component from a dormant state when it receives a broadcast including a wake-up identifier of the communication device.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: December 17, 2013
    Assignee: Google Inc.
    Inventor: Robert W. Twitchell, Jr.
  • Patent number: 8611272
    Abstract: A do not disturb (DND) mode for telephonic devices, in which the DND mode is automatically deactivated after a time increment has elapsed, the DND mode having been activated based on detecting, upon receiving a telephone call, a selection of the control.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: December 17, 2013
    Assignee: Google Inc.
    Inventors: Andrew J. Hertzfeld, Mathias Marc Agopian
  • Patent number: 8605686
    Abstract: Method and Apparatus for performing power control on the power control commands transmitted on a forward link in a wireless communication system. The power level of the power control bits on the forward link are adjusted in response to power commands received on the reverse link. The mobile station measures the power level of the adjusted power control bits to measure the quality of the forward link.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: December 10, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Stein A. Lundby
  • Patent number: 8605644
    Abstract: In an example embodiment, an apparatus may include at least one processor and at least one memory including computer code.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: December 10, 2013
    Assignee: Nokia Siemens Networks Oy
    Inventor: Shu-Shaw Wang
  • Patent number: 8599742
    Abstract: A system can be implemented in a station associated with a wireless network and the station can receive uplink time division multiplexed (TDM) transmissions from a user device. The system includes a first filter to filter uplink TDM transmissions, associated with the user device, during a first period of time when the user device is transmitting on an uplink data channel (DCH) to generate a first interference estimate. The system further includes a second filter to filter uplink TDM transmissions, associated with the user device, during a second period of time when the user device is not transmitting on the uplink DCH to generate a second interference estimate. The system also includes a third filter to filter uplink TDM transmissions, associated with the user device, during the first and second periods of time, to generate a third interference estimate.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: December 3, 2013
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jinhua Liu, Qingyu Miao
  • Patent number: 8600434
    Abstract: A method and apparatus of cell searching in a wireless communication is disclosed. A method of cell searching in a user equipment of a wireless communication system, which supports a multi-mode, comprises the steps of generating a list of neighbor cells by measuring a power of each of the neighbor cells of first radio access technology (RAT) when the user equipment is operating in second RAT; and a first search step of searching for a cell, which can serve the user equipment, from the cells included in the list of neighbor cells if radio link failure is occurred in the second RAT.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: December 3, 2013
    Assignee: LG Electronics Inc.
    Inventor: Mun Yong Han
  • Patent number: 8599745
    Abstract: Provided is a method, system and programming product for maintaining a connection between a mobile device and a server over a wireless network in a manner that conserves the power supply of the mobile device. The claimed subject matter addresses the transmission of regular “keep-alive” packets to refresh a network address translation (NAT) server and the scanning for and connecting to faster, higher priority network connections. A configurable parameter, or power timeout, specifies an idle time. When a period of time equal to the parameter has passed with no traffic between the mobile device and the server, in either direction, periodic roaming scans and keep-alive messages are halted. As soon as traffic is resumed through the tunnel, the mobile device roams to the highest priority connection and roaming scans and keep-alive messages are resumed.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: December 3, 2013
    Assignee: International Business Machines Corporation
    Inventor: Stephen W. Babin
  • Patent number: 8599744
    Abstract: Techniques are provided to generate a transmit power plan comprising transmit powers to be used by wireless access point devices in a wireless network. A wireless network controller receives, from each of a plurality of wireless access point devices configured to provide wireless service in corresponding coverage areas to client devices, data indicating receive signal strength information with respect to signals received from others of the plurality of wireless access point devices. Overlap of coverage areas of wireless access point devices is computed from the received signal strength information. A plurality of candidate transmit power plans are generated each from a deterministic or random sequence of selections of wireless access point devices. One of the plurality of candidate transmit power plans is selected to achieve a desired amount of coverage area overlap while maximizing overall coverage by the plurality of wireless access point devices.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: December 3, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Ji Woong Lee, Vishal Satyendra Desai
  • Patent number: 8600424
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in which it is determined that a transmission of a first instance of control information in a first control region in a subframe of a first power class eNodeB a non-modified power spectral density (PSD) will result in interference above a threshold with a transmission of a second instance of control information in a second control region in a subframe of a second power class eNodeB, PSD is modified for a portion of at least one of the first or second control regions of at least one of the subframes for at least one of the first power class or second power class eNodeB, and the first instance of control information is transmitted during the control region using the modified PSD for the portion of the first instance of control information.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: December 3, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Wanshi Chen, Juan Montojo, Aamod Dinkar Khandekar, Tingfang Ji
  • Patent number: 8600423
    Abstract: Method and apparatus for improving a noise power estimate in a wideband CDMA (WCDMA) network are disclosed and may include calculating a total noise power estimate for a downlink channel based on a plurality of control channel bits from a plurality of different types of control channels. The plurality of control channel bits may include at least two of: dedicated physical channel (DPCH) transmit power control (TPC) bits, DPCH pilot bits, and common pilot channel (CPICH) bits. A first noise power estimate may be calculated for the downlink channel based on a plurality of the DPCH TPC bits. A value of at least one of the plurality of DPCH TPC bits may not be known when the at least one of the plurality of DPCH TPC bits is received.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: December 3, 2013
    Assignee: Broadcom Corporation
    Inventors: Severine Erceg, Vinko Erceg, Mark Kent, Uri M. Landau
  • Patent number: 8599746
    Abstract: Particular embodiments provide power usage management for network devices according to historical traffic pattern data. Network traffic statistics for traffic flowing through a network device may be determined. Traffic pattern for a time period based on the traffic flowing through the network device is then determined. The network device may then manage power based on the pattern. For example, when a pattern indicates that traffic flowing through the network device is light during a time period, then the network device may operate in a lower power mode, such as a standby mode and when it indicates that there is higher usage, the network device may operate in a normal power mode. A power usage policy may be determined based on the historical traffic patterns and is automatically enforced by the network device. The power usage policy also may be dynamically adjusted over time based on network traffic statistics.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: December 3, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Kenneth Durazzo, Andrew G. Harvey
  • Patent number: 8599743
    Abstract: In a network of wireless communications apparatuses connected by a plurality of routes, a wireless communications apparatus includes a packet generating unit that generates a packet for each of the plurality of routes in the network; an operating unit that generates power consumption information for each of the routes, the power consumption information indicating power consumption for transmitting the packets; an attaching unit that attaches the power consumption information to the packets; and a transmit unit that transmits the packets to which the power consumption information is attached via the corresponding routes.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: December 3, 2013
    Assignee: Ricoh Company, Ltd.
    Inventor: Sadahiro Kimura
  • Patent number: 8594012
    Abstract: A transmit power control (TPC) method and a user equipment (UE) of a telecommunications network utilizing the TPC method. The UE receives TPC commands intended for traffic and control channels. The TPC commands are separately identified by logical or physical resources associated with the channels. When the traffic and control channel TPCs occupy the same resources, the UE applies common power control commands to the traffic and control channels. When the traffic and control channel TPCs occupy different resources, the UE applies separate power control commands to the traffic and control channels.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: November 26, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Erik Dahlman, Anders Furuskar
  • Patent number: 8594720
    Abstract: An electronic device includes: a communication section to wirelessly communicate with an external device; a first section to make the communication section establish a wireless connection with the external device; a detective section to detect whether the electronic device is in a used condition or an unused condition; a second section to shift to a power-saving mode when the unused condition is detected for a while; and a third section to cancel the power-saving mode when the used condition is detected during the power-saving mode, wherein the second section cuts off the connection if the connection is still alive when shifting to the power-saving mode; and the third section changes a connection processing for making the first section establish the connection after the power-saving mode was canceled, based on a connecting condition from a time of detecting the last used condition to a time of shifting to the power-saving mode.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: November 26, 2013
    Assignee: Casio Computer Co., Ltd
    Inventor: Makoto Nakagawa
  • Patent number: 8594005
    Abstract: Provided is a method and apparatus for discontinuously transmitting/receiving packets for low-power consumption of a terminal in a cellular system for packet transmission. The present research provides a method and apparatus that can perform a low-power consuming operation when a terminal is in active state in a cellular system. The method for discontinuously transmitting/receiving packet data to reduce power consumption of a terminal in a cellular system, including a) establishing discontinuous reception/transmission (DRX/DTX) parameters including discontinuous DRX/DTX cycle information for terminals operating in a transmission suspension mode, which is a sub-state of an active state; and b) performing DRX/DTX based on the DRX/DTX parameters in the terminals operating in the transmission suspension mode.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: November 26, 2013
    Assignees: Electronics and Telecommunications Research Institute, SK Telecom Co., Ltd., KT Corporation
    Inventors: Jae-Heung Kim, Byung-Han Ryu, Seung-Chan Bang
  • Patent number: 8593984
    Abstract: Provided is an apparatus and method for measuring an individual receiving power using an identification signal of a repeater or a transmitter. The apparatus and method includes a total receiving power measuring unit for measuring a total receiving power from transmitters; an identification signal analyzing unit for extracting a channel profile signal from the signal transmitted from the predetermined transmitter through a multi-path, wherein the predetermined transmitter transmits a signal having the identification signal; and an individual receiving power calculating unit for calculating an individual receiving power from the transmitter based on the measured total receiving power and the extracted channel profile signal.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: November 26, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik Park, Heung-Mook Kim, Soo-In Lee
  • Patent number: 8594581
    Abstract: The present invention relates to a method and a wireless station for initiating radio resource measurements. A wireless station identifies a need for radio resource measurements by a second wireless station despite there is no association between the wireless station and the second wireless station allowing direct radio communication between said stations. The wireless station initiates a request for radio resource measurements by the second wireless station.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: November 26, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Anders Furuskär, Arne Simonsson, Jonas Pettersson, Per Magnusson, Stefan Rommer
  • Patent number: 8594716
    Abstract: A power control apparatus performs data telecommunication with a mobile station and receives data quality information transmitted therefrom in a wireless telecommunication system. Then it judges a reception quality of the mobile station by using the received data quality information and changes a target power quality which is set up for the mobile station, followed by notifying the mobile station of the changed target power quality.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: November 26, 2013
    Assignee: Fujitsu Limited
    Inventors: Teruyoshi Watanabe, Hajime Hasegawa
  • Patent number: 8594121
    Abstract: A white space sensing method includes measuring a peak to average power ratio (PAPR) of a signal of a channel in a spectrum band. The method also includes determining whether a ratio of the measured PAPR to a predetermined PAPR of a modulation scheme associated with the signal meets a predetermined threshold. The method further includes indicating the channel is available for use by an unlicensed user when the ratio meets the predetermined threshold.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: November 26, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Sushant Suresh Thakur, SaiDhiraj Amuru, Sri Rama Chakravarthy Vollala
  • Patent number: 8593980
    Abstract: A feedback generation method for uplink Transmit Power Control (TPC) in a mobile communication system is provided. A feedback generation system for uplink TPC includes an uplink information receiver to receive uplink information from a terminal, to measure a Signal-to-Interference Noise Ratio (SINR) value with respect to the received uplink information, and to measure a movement speed of the terminal, a transmission power adjustment value setting unit to set a transmission power adjustment value based on the movement speed of the terminal; an adjusted SINR calculator to calculate an adjusted SINR value, based on an expected SINR value and the measured SINR value; and a feedback information regenerator to regenerate feedback information based on the transmission power adjustment value and the adjusted SINR value, and to transmit the regenerated feedback information to the terminal.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: November 26, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Sook Bae, Hyungu Hwang, Daeho Kim, Yeong Jin Kim
  • Patent number: 8588840
    Abstract: A system and method for distributed power control in a communications system are provided. A method for relay node operations includes transmitting a signal at a transmit power level on a first channel from a relay node to a user equipment, receiving a message comprising a first indication of channel quality of the first channel at the transmit power level, and determining a second indication of channel quality of a second channel between a communications controller and the relay node, where the first channel and the second channel are in a same multi-hop communication path. The method also includes altering the transmit power level of the first channel based on the first indication of channel quality and the second indication of channel quality to converge the channel quality of the first channel to a convergence value.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: November 19, 2013
    Assignee: FutureWei Technologies, Inc.
    Inventors: Kien Trung Truong, Young Hoon Kwon, Philippe Sartori
  • Patent number: 8588838
    Abstract: Provided is an apparatus and method for controlling power in a mobile communication system. The apparatus includes a moving speed measuring unit for measuring a moving speed of the terminal, a Channel Quality Indicator (CQI) processing unit for requesting a base station to adjust a CQI report frequency when the moving speed measured by the moving speed measuring unit exceeds a threshold value, and determining a CQI report frequency based on information on the CQI report frequency received from the base station to report CQI, and a power controller for performing a power control in response to a power control signal created by the CQI reported from the base station.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: November 19, 2013
    Assignees: Electronics and Telecommunications Research Institute, Samsung Electronics Co., Ltd.
    Inventors: Seong-Min Kim, Heon-Kook Kwon, Joon-Hyung Kim, Kwang-Chun Lee
  • Patent number: 8588103
    Abstract: A system and method for distributing communications through a dense mesh network having a plurality of nodes coupled to one of at least two gateway controllers is disclosed. A node location of each node is calculated relative to other nodes in the mesh network. Nodes that are less than a predetermined distance of each other are assigned to separate gateway controllers. Radio frequency interference levels between the nodes in the mesh network are measured and channels or PN codes of nodes having interference levels greater than a predetermined amount are changed.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: November 19, 2013
    Assignee: Control4 Corporation
    Inventor: Walter Barum
  • Patent number: 8582496
    Abstract: An apparatus and method are provided for efficiently sharing a single wireless channel and for providing improved power saving. Automatic beacon “sliding” establishes a round-robin contention-free channel schedule among multiple IBSSs. Entering an idle state immediately following communication after a beacon saves power. Further power savings occur when presumptions of pending traffic may be made.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: November 12, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Long Wang
  • Patent number: 8583051
    Abstract: The present invention relates to an apparatus for removing interference between neighbor cells in a radio communication system, and to a method for same.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: November 12, 2013
    Assignee: SNU R&DB Foundation
    Inventors: Yong Hwan Lee, Seung Hwan Lee
  • Patent number: 8583160
    Abstract: Certain aspects of the present disclosure provide closed loop and open loop power control techniques for each antenna of the user equipment (UE). The access point may measure the received signals from each antenna of the user equipment, calculate a power adjustment parameter for each antenna of the UE, and transmit the parameters to the UE. The UE may use the adjustment parameters to determine the transmit power value for each antenna. In addition, the UE may measure the path loss for each antenna and update the transmit power per antenna based on the path loss and other parameters.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: November 12, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Gaal, Jelena M. Damnjanovic, Wanshi Chen, Naga Bhushan, Juan Montojo
  • Patent number: 8583129
    Abstract: Methods and apparatuses for acquiring/providing available channel information using Generic Advertisement Service (GAS) protocol in a wireless local area network (WLAN) are disclosed. AP (Access Point) station has a capability to acquire information for available channels from a database using a specific protocol related to an operation within the White Space (e.g. Access Network Query Protocol (ANQP)). And, non-AP station can retrieve the information for available channels by transmitting a Generic Advertisement Service (GAS) initial request frame to the AP station, wherein the GAS initial request frame comprises an Advertisement Protocol Element whose element ID indicates the specific protocol, and receiving a GAS initial response frame comprising a White Space Map (WSM) the specific protocol.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: November 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Eun Sun Kim, Yong Ho Seok
  • Patent number: 8583161
    Abstract: A method of performing feedback load reduction for a mobile device in a wireless communication system is disclosed. The method comprises measuring a signal from the network to get Channel State Information (CSI); comparing the measured CSI with at least one threshold and determining one region where the CSI falls in from a plurality of regions divided by the at least one threshold and ranked in order; and sending a rank for the determined region to the network.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: November 12, 2013
    Assignee: HTC Corporation
    Inventors: Jin-Hao Li, Hsuan-Jung Su, Yu-Chih Jen
  • Patent number: 8576824
    Abstract: A wireless communications network includes a base station to communicate with plural mobile stations over a wireless link. A broadcast message is sent to the plural mobile stations, with the broadcast message containing an indication for indicating to the plural mobile stations that the mobile stations are to change data rates for transmissions over a reverse wireless link.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: November 5, 2013
    Assignee: Ericsson AB
    Inventors: Mo-Han Fong, Jun Li, Sophie S. Vrzic, Ali Iraqi
  • Patent number: 8577408
    Abstract: A radio communication apparatus which performs a direct communication with a counter radio communication apparatus is provided. The radio communication apparatus includes a radio section configured to receive from the counter radio communication apparatus, a first radio signal which contains a first transmission power setting value as a setting value of power at transmission from the counter radio communication apparatus, and to measure a first reception power value as a power value at reception of the first radio signal; and a transmission power control section configured to determine a second transmission power setting value as a setting value of power at transmission of a second radio signal to the counter radio communication apparatus based on the first transmission power setting value and the first reception power value.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: November 5, 2013
    Assignee: NEC Corporation
    Inventor: Takeshi Yamamoto
  • Patent number: 8577406
    Abstract: There is provided a communication device including: a communication unit that receives a beacon for a second communication service making secondary usage of a spectrum assigned to a first communication service; and a control unit that controls a transmission power to be used for transmission of a radio signal of the second communication service from the communication unit based on location data included in the beacon and indicating a location of a transmission source node of the beacon and a location of an interfered node interfered by the second communication service.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: November 5, 2013
    Assignee: Sony Corporation
    Inventors: Ryo Sawai, Ryota Kimura
  • Patent number: 8570997
    Abstract: A wireless client station including a transmitter to transmit data, a receiver having a sensitivity, a signal strength module, and a control module. The sensitivity of the receiver corresponds to a minimum signal strength that the receiver is able to detect. The signal strength module is configured to estimate signal strengths of signals received from a plurality of access points. Each signal received from the plurality of access points respectively indicates a power being dissipated by access point that transmitted the signal. The control module is configured to, for each access point, determine a path loss based on i) the strength of the signal received from the access point, and ii) the power indicated as being dissipated by the access point, and to adjust a minimum transmit power level of the transmitter based on i) a lowest one of the path losses and ii) the sensitivity of the receiver.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: October 29, 2013
    Assignee: Marvell International Ltd.
    Inventor: Kapil Chhabra