Power Control Patents (Class 455/13.4)
-
Patent number: 8812052Abstract: A satellite positioning system (SPS) receiver that can provide good performance with low power consumption is described. The SPS receiver may be operated in one of multiple modes, which may be associated with different bias current settings for the SPS receiver. One of the modes may be selected based on output power level of a transmitter co-located with the SPS receiver. The bias current of an LNA, a mixer, and/or an LO generator within the SPS receiver may be set based on the selected mode. In one design, a first (e.g., lower power) mode may be selected for the SPS receiver if the transmitter output power level is below a switch point. A second (e.g., high linearity) mode may be selected if the transmitter output power level is above the switch point. The second mode is associated with more bias current for the SPS receiver than the first mode.Type: GrantFiled: May 24, 2007Date of Patent: August 19, 2014Assignee: QUALCOMM IncorporatedInventors: Yang Xu, Timothy Paul Pals, Kevin Hsi-huai Wang
-
Methods and apparatus for generating, communicating, and/or using information relating to self-noise
Patent number: 8811348Abstract: A wireless terminal measures the received power of a tone corresponding to an intention base station null output, measures the received power of pilot signals, and determines a signal to noise ratio of the received pilot signal. The wireless terminal calculates a downlink signal to noise ratio saturation level representative of the SNR of a received downlink signal that the wireless terminal would measure on a received signal transmitted by the base station at infinite power. The calculated downlink signal to noise ratio saturation level is a function of the determined interference power, the measured received pilot signal power, and the determined pilot signal SNR. A report is generated corresponding to one of a plurality of quantized levels, the selected quantized level being the closest representation to the calculated downlink signal to noise ratio saturation level. The generated report is communicated using a dedicated control channel segment in a predetermined uplink timing structure.Type: GrantFiled: January 17, 2006Date of Patent: August 19, 2014Assignee: QUALCOMM IncorporatedInventors: Sundeep Rangan, Rajiv Laroia, Arnab Das, Junyi Li, John Fan -
Publication number: 20140227968Abstract: A control apparatus for an earth-distant-platform includes a control unit, which includes with a control input and a control output, and a memory element. The memory element contains a plurality of operating value parameter sets for an RF transmit amplifier unit. The control input receives a control signal and, dependent on the control signal, the control unit selects an operating value parameter set from the memory element. The control output controls an energy supply unit and/or a preamplifier/linearization element using the selected operating value parameter set such that the RF transmit amplifier unit is operable in a defined operating state.Type: ApplicationFiled: February 12, 2014Publication date: August 14, 2014Applicant: Tesat-Spacecom GmbH & Co. KGInventors: Gerhard REINWALD, Hanspeter KATZ
-
Patent number: 8805274Abstract: An architecture and protocol enables signal communications between either a frequency translation module and a decoder within a dwelling, or between an antenna and a decoder within a dwelling. According to an exemplary embodiment, the decoder comprises a switch 33 between the low noise block converter power supply, and a transceiver and output coupling. The switch 33 generates a high impedance during operation of the frequency translation module and the LNB power supply 38, thereby isolating the transceiver and the output coupling from the LNB power supply. The switch generates a low impedance between the LNB power supply and the transceiver and output coupling during operation of the LNB power supply.Type: GrantFiled: January 25, 2007Date of Patent: August 12, 2014Assignee: Thomson LicensingInventors: John James Fitzpatrick, Lincheng Xiu
-
Patent number: 8804585Abstract: The present disclosure proposes different methods of utilizing dedicated control channels in a multi-hop relay system. For one embodiment of the present disclosure, dedicated control channels may be used to power control communication entities in the multi-hop relay system. For another embodiment of the present disclosure, bandwidth resources of dedicated control channels may be employed to control a sleep mode at a subscriber station. For yet another embodiment of the present disclosure, dedicated control channels of the multi-hop relay system may be exploited for sending multicast and broadcast service messages.Type: GrantFiled: January 9, 2009Date of Patent: August 12, 2014Assignee: QUALCOMM IncorporatedInventors: Pranav Dayal, Tingfang Ji
-
Patent number: 8797997Abstract: A system and method for determining an initial mean open loop power level of a pilot channel of a reverse traffic channel for a mobile terminal. The initial open loop power level enables handoff of an active call from a first access network to a second access network. A handoff initialization request is from the first access network. A mean received power level of the forward link of the second access network is measured and transmitted to the second access network. An open loop power adjustment factor is received from the second access network. The initial mean open loop power level is set based on the open loop power adjustment factor.Type: GrantFiled: August 6, 2008Date of Patent: August 5, 2014Assignee: BlackBerry LimitedInventors: Ke-chi Jang, Jun Li, Larry T. Bolen
-
Patent number: 8792839Abstract: Systems and methods for allocating transmit power among multiple interfaces in a wireless communication system are disclosed. In one embodiment, the method comprises determining a first power level that is used for transmitting over a first air interface, determining a maximum power level available for transmitting over a second interface, comparing the first power level to the maximum power level, determining a second power level that is used for transmitting over the second air interface based on the comparison of the first power level to the maximum power level, and generating a power-based payload constraint based on the second power level.Type: GrantFiled: May 6, 2010Date of Patent: July 29, 2014Assignee: QUALCOMM IncorporatedInventors: Jun Hu, Yu-Chuan Lin, Reza Shahidi, Vijaya C. Ramasami, Ravindra M. Garach
-
Patent number: 8792822Abstract: A system for protecting a power unit on a spacecraft may include a ground station. The ground station may include a power unit loading estimation and monitoring module for estimating a power loading level on a power unit of the spacecraft power unit. The ground station may also include a ground station power limiter to regulate a power of a signal for transmission from the ground station to the spacecraft to prevent overloading the spacecraft power unit. The power of the signal for transmission to the spacecraft may be regulated based at least in part on an estimated power loading level on the power unit of the spacecraft.Type: GrantFiled: December 7, 2010Date of Patent: July 29, 2014Assignee: The Boeing CompanyInventors: Weizheng W. Wang, Bruce A. Tomei, Stephen F. Sichi
-
Patent number: 8780865Abstract: A system and method for determining an initial mean open loop power level of a pilot channel of a reverse traffic channel for a mobile terminal. The initial open loop power level enables handoff of an active call from a first access network to a second access network. A handoff initialization request is from the first access network. A mean received power level of the forward link of the second access network is measured and transmitted to the second access network. An open loop power adjustment factor is received from the second access network. The initial mean open loop power level is set based on the open loop power adjustment factor.Type: GrantFiled: September 14, 2012Date of Patent: July 15, 2014Assignee: BlackBerry LimitedInventors: Ke-Chi Jang, Jun Li, Larry T. Bolen
-
Patent number: 8781517Abstract: The present invention discloses a method for cell sleep/wakeup, and a method and an apparatus for controlling carrier power, wherein the method for controlling carrier power comprises: a SON judging whether a cell of a base station requires sleep and/or wakeup, wherein when the judgment result is that the cell requires sleep, the SON indicates the base station to make the cell to sleep, so that the base station reduces pilot channel power of a carrier of the cell to zero or closes the carrier to make the cell enter an energy-saving state; and when the judgment result is that the cell requires wakeup, the SON indicates the base station to wake up the cell, so that the base station recovers the pilot channel power of the carrier of the cell to an operation state value to make the cell exit the energy-saving state.Type: GrantFiled: April 22, 2010Date of Patent: July 15, 2014Assignee: ZTE CorporationInventor: Jie Zhao
-
Patent number: 8774852Abstract: Systems, devices, and methods for adjusting a transmission power at a femto node are described herein. According to the systems, devices, and methods herein, a measurement of a signal transmitted from a transmitting node may be communicated to the femto node, for example from a user equipment or a neighboring femto node, for use in adjusting the power. The transmitting node may comprise the femto node, a macro node, or a neighboring femto node. In addition, statistics regarding such measurements may be communicated to the femto node for use in adjusting the power. The femto node may also adjust the power based on unsuccessful registration attempts or interference communications received at the femto node.Type: GrantFiled: April 22, 2010Date of Patent: July 8, 2014Assignee: QUALCOMM IncorporatedInventors: Farhad Meshkati, Vinay Chande, Mehmet Yavuz
-
Patent number: 8767805Abstract: The assembly includes a first sub-assembly with, on a transmitter side, a modem having a plurality of inputs, an output for a total data stream, and signal paths connected in parallel. Each signal path includes a modulation stage, a stage for sampling modulated signals and a mixer stage Outputs of mixer stages are connected to inputs of a summation stage, and output of the summation stage is connected to output of the modem. A second sub-assembly has an input for initialization data connected to an assembly for controlling a test operation. The sub-assembly is connected to a downstream carrier management assembly having a plurality of outputs. Each output is connected to a test sequence generating unit. Outputs of all test sequence generating units are connected to a parallel/serial converter assembly connected downstream of a filter assembly. Output of the filter assembly is connected to output of the second sub-assembly.Type: GrantFiled: May 17, 2011Date of Patent: July 1, 2014Assignee: INRADIOS integrated radio solutions GmbHInventors: Steffen Bittner, Marco Krondorf
-
Patent number: 8761080Abstract: Techniques for adjusting transmit power to mitigate both intra-sector interference to a serving base station and inter-sector interference to neighbor base stations are described. This may be done by combining interference information from multiple base stations.Type: GrantFiled: November 19, 2009Date of Patent: June 24, 2014Assignee: QUALCOMM IncorporatedInventors: Murat Mese, Arak Sutivong
-
Patent number: 8755327Abstract: A radio base station 10 according to the present invention includes a reference channel power setting unit 11 configured to change a transmission power of a reference channel, an associated channel power setting unit 12 configured to set a relative power offset of an associated channel by using a value relative to the reference channel, a power parameter holding unit 13 configured to hold power parameters set by the reference channel power setting unit 11 and associated channel power setting unit 12, a power parameter adjustment unit configured to adjust the relative power offset of the associated channel in a case where the transmission power of the reference channel is changed, and a transmitter 15 configured to transmit a signal of each channel on the basis of information in the power parameter holding unit 15, wherein the power parameter adjustment unit 14 maintains the transmission power of the associated channel unchanged even though the transmission power of the reference channel is changed.Type: GrantFiled: June 15, 2010Date of Patent: June 17, 2014Assignee: NTT DoCoMo, Inc.Inventors: Hiroki Zukawa, Hidehiko Oyane
-
Patent number: 8744339Abstract: The invention relates to a wireless telecommunication system including at least one Base Station (BS) for communicating with at least one multihop Relay Node (RN) using a wireless link of a first type and with at least one local user equipment unit (UE) located within a range of the base station (BS) using at least one wireless link of a second type, wherein the wireless link of the first type is used to transmit a combined data flow encapsulating multiple individual data flows relating to different services and/or remote user equipment (UE) units.Type: GrantFiled: October 31, 2008Date of Patent: June 3, 2014Assignees: Nokia Siemens Networks Oy, Fraunhofer Gesellschaft zur Forderung der angewandten Forschung e.V.Inventors: Ruediger Halfmann, Thomas Haustein, Andreas Ibing, Wolfgang Zirwas
-
Patent number: 8738067Abstract: A method and apparatus for controlling the transmit power of a mobile BS in a wireless communication system are provided. The method includes determining a measurement value for determining if a noise power level is higher than an interference power level, when the measurement value is higher than a threshold value, determining that the noise power level is higher than the interference power level, and, when it is determined that the noise power level is higher than the interference power level, increasing transmit power.Type: GrantFiled: February 15, 2011Date of Patent: May 27, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: In-Taek Lee, Byoung-Ha Yi
-
Patent number: 8731597Abstract: A power control command (PCC) transmission scheme is disclosed. In one embodiment, the PCC transmission scheme may involve an access network engaging in a respective existing communication session with each of a plurality of existing access terminals and sending a respective existing series of power control commands (PCCs) directed to a respective existing access terminal according to a respective existing time schedule. The transmission scheme may further involve the access network deciding to initiate a new communication session with a new access terminal and, in response to the deciding, assigning a new time schedule for sending a new series of PCCs directed to the new access terminal that differs from at least one respective existing time schedule. The transmission scheme may further involve engaging in the new communication session with the new access terminal and sending the new series of PCCs according to the new time schedule.Type: GrantFiled: May 26, 2011Date of Patent: May 20, 2014Assignee: Sprint Spectrum L.P.Inventors: Sachin R. Vargantwar, Manoj Shetty, Deveshkumar Rai
-
Patent number: 8731595Abstract: Systems and methods for transmission power management for a mobile device supporting simultaneous transmission on multiple air interfaces are disclosed. In one embodiment, the method comprises determining a transmission power level for each air interface, comparing the transmission power levels to a threshold power level, and adjusting at least one of the transmission power levels based on said comparison.Type: GrantFiled: May 5, 2010Date of Patent: May 20, 2014Assignee: QUALCOMM IncorporatedInventors: Shimman Arvind Patel, Gene Fong, Avneesh Agrawal
-
Patent number: 8731598Abstract: There is described a method of controlling a basestation in a cellular wireless communications network, the method comprising, within the basestation, autonomously and dynamically adapting a maximum value for a total transmit power of the basestation, such that interference between the basestation and other access points in the vicinity is minimized.Type: GrantFiled: August 19, 2011Date of Patent: May 20, 2014Assignee: Ubiquisys LimitedInventors: Alan Carter, Stephen Whittaker, Aminu Wada Maida
-
Patent number: 8725066Abstract: An apparatus and method for allocating a resource to a Mobile Station (MS) connected to a Relay Station (RS) in a broadband wireless communication system are provided. In the broadband wires communication system, a Base Station (BS) includes a transmitter for transmitting a pilot signal transmission request message to an MS, and a scheduler for frequency-selectively allocating a resource to the MS by using channel information upon receiving from an RS the channel information estimated using the pilot signal.Type: GrantFiled: August 20, 2007Date of Patent: May 13, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-Hyung Kwun, Dai-Kwan Kim
-
Patent number: 8718585Abstract: A method and a device for controlling uplink/downlink power for radio communication is disclosed. The method includes receiving a radio communications signal in a radio receiver, estimating one or more parameters indicative of the transmission quality of the received radio communications signal based on power control information bits and pilot symbol bits in the radio communications signal, and generating a control signal for the radio receiver and/or the radio transmitter.Type: GrantFiled: November 14, 2008Date of Patent: May 6, 2014Assignee: Intel Mobile Communications GmbHInventors: Thorsten Clevorn, Juergen Niederholz, Frank Gersemsky, Herbert Dawid
-
Patent number: 8718569Abstract: A method of provisioning a communications link between remote terminals within a hub-spoke network comprising receiving, by a first remote terminal, information about a second remote terminal from a hub, selecting, by the first remote terminal, a modulation factor, coding rate, symbol rate, center frequency, and power level based on the information received about the second remote terminal, transmitting, by the first remote terminal, a signal using at least one of the selected modulation factor, coding rate, symbol rate, center frequency, and power level, to the second remote terminal such that a communications link is created, and adjusting the modulation factor, coding rate, symbol rate, center frequency, or power level of the transmitted signal such that performance of the link is increased while maintaining a presence of the link.Type: GrantFiled: February 29, 2012Date of Patent: May 6, 2014Assignee: Comtech EF Data Corp.Inventors: Vasile Manea, Michael Beeler, Frederick Morris, Jeffery Harig
-
Patent number: 8711710Abstract: Systems and methods may be provided for adaptive communications with utility meters based on atmospheric conditions. The systems and methods may include obtaining weather information associated with a location of a utility meter; determining, based upon the weather information, whether the utility meter location is associated with weather that affects communications performance; and modifying an acceptable communications error rate associated with the utility meter or the communications interface of the utility meter from a first value to a second value upon determining that the utility meter location is associated with weather that affects communications performance. One or more of the foregoing operations may be performed by a utility meter or a utility server computer associated with the utility meter.Type: GrantFiled: February 15, 2011Date of Patent: April 29, 2014Assignee: General Electric CompanyInventors: Bradley Richard Ree, John Christopher Boot
-
Patent number: 8711727Abstract: Embodiments of the present invention provide methods, systems and apparatuses for optimizing downlink path loss (PL) measurements in time division duplex (TDD) systems enabling fast power control targeting to decrease fading margin. In one embodiment, a method of power control in a long term evolution time division duplex (TDD) system is provided. The method includes controlling a length of a path loss measurement filter based on an allocation type. A width and frequency position of the path loss measurement filter is made dependent on the allocation type.Type: GrantFiled: January 25, 2013Date of Patent: April 29, 2014Assignee: Nokia CorporationInventors: Xiang Guang Che, Kari Pekka Pajukoski, Peter Skov, Esa Tapani Tiirola
-
Patent number: 8706026Abstract: An embodiment method for power control in a multi-hop communications system includes transmitting a power usage pattern for each relay node in a subset of relay nodes served by a communications controller, where the power usage pattern specifies transmit power levels for the relay node while the relay node is operating in a power control mode. The method also includes receiving channel measurements of access links between the relay nodes in the subset of relay nodes and subscriber equipment served by the relay nodes, determining backhaul link transmit power levels and access link transmit power levels based on the channel measurements of access links and channel measurements of backhaul links between the communications controller and the relay nodes, and transmitting the access link power levels to the subset of relay nodes.Type: GrantFiled: September 30, 2011Date of Patent: April 22, 2014Assignee: FutureWei Technologies, Inc.Inventors: Kien Trung Truong, Young Hoon Kwon, Philippe Sartori, Mazin Al-Shalash
-
Patent number: 8705411Abstract: The present patent application improves DARP by allowing multiple users on one time slot (MUROS). It comprises means, instructions and steps for combining two signals. In one example, it comprises at least one baseband modulator, a plurality of amplifiers where the signals are multiplied by a gain; at least one combiner operably connected to the amplifiers where the signals are combined; and a phase shifter where one of the signals is phase shifted with respect to the other signal. In another example; the apparatus further comprises a phase shifter operably connected to the at least one baseband modulator to provide a ?/2 phase shift between the two signals. In another example, the at least one baseband modulator comprises a BPSK baseband modulator on an I axis and a BPSK baseband modulator on a Q axis.Type: GrantFiled: October 21, 2008Date of Patent: April 22, 2014Assignee: QUALCOMM IncorporatedInventors: Zhi-Zhong Yu, Hassan Rafique
-
Publication number: 20140099885Abstract: A method of selecting a mode for an SPS receiver includes selecting either a first mode or a second mode for the SPS receiver based on a comparison between an output power of a communications transceiver and a mode switch point wherein the mode switch point is a power value. The first mode corresponds to a first bias current value of the SPS receiver, the second mode corresponds to a second bias current value of the SPS receiver, and the first bias current value is different from the second bias current value.Type: ApplicationFiled: December 12, 2013Publication date: April 10, 2014Applicant: QUALCOMM INCORPORATEDInventors: Yang XU, Timothy Paul PALS, Kevin Hsi Huai WANG
-
Patent number: 8688156Abstract: A method and apparatus for controlling a link margin are provided. The method includes: receiving, from a second device, a link margin frame including information about the link margin related to a communication link between a first device and the second device; and performing at least one operation selected from among a change in transmission power, a change in a modulation and coding scheme (MCS), beam forming, and a change of the communication link to another frequency band, based on the received link margin frame.Type: GrantFiled: December 27, 2010Date of Patent: April 1, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Ho-dong Kim, Hae-young Jun, Hyuk-choon Kwon, Soo-yeon Jung
-
Patent number: 8687525Abstract: Co-channel communications methods, systems, and devices are provided. Embodiments can be utilized to allow multiple users on one time slot (MUROS). For example, a method for wireless communication by a first remote station can comprise receiving a first co-channel signal that has a first amplitude and a second co-channel signal that has a second amplitude, wherein a difference between the first amplitude and the second amplitude is less than a threshold; selecting one of the first co-channel signal and the second co-channel signal; and demodulating the selected co-channel signal. Other aspects, embodiments, and features are also claimed and described.Type: GrantFiled: March 14, 2013Date of Patent: April 1, 2014Assignee: QUALCOMM IncorporatedInventors: Zhi-Zhong Yu, Hassan Rafique
-
Patent number: 8688122Abstract: Aspects of the present disclosure relate to wireless communications and techniques for determining a power save duration for an out of service subscription based, at least in part, on a detected mobility status change of a mobile device. Aspects generally include a mobile device, that shares a single radio resource for establishing connections with a first and second subscription, using a detected mobility status change to determine a power saving duration for an out of service subscription.Type: GrantFiled: January 20, 2012Date of Patent: April 1, 2014Assignee: QUALCOMM IncorporatedInventors: Subbarayudu Mutya, Shivank Nayak
-
Publication number: 20140087653Abstract: An apparatus and method for managing a satellite service resource is provided. The method may include measuring, using a communication system monitoring unit, at least one satellite service signal being received for at least one satellite service, calculating, using a service resource management unit, an optimum frequency and an optimum output power for the at least one satellite service through analysis of a satellite service resource, allocating the calculated frequency and the calculated output power to the at least one satellite service, and transmitting the allocated information to the communication system monitoring unit, and comparing, using the communication system monitoring unit, the measured information to the allocated information, and transmitting a result of the comparison to the service resource management unit.Type: ApplicationFiled: September 24, 2013Publication date: March 27, 2014Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jin Ho JO, Moon Hee YOU, Jae Hoon KIM
-
Patent number: 8682401Abstract: The subject matter of the invention is a process and a system for wireless transmission of infotainment components between an in-vehicle network in a vehicle and a network external to the vehicle, the in-vehicle network having a reception readiness state and an idle state and by way of a remote control of the vehicle can be shifted from the idle state to the reception readiness state. Furthermore the invention relates to a remote control for transmission of a prompt signal, the in-vehicle network by actuating an actuating element of the remote control shifting the in-vehicle network into the reception readiness state, by which infotainment components can be received from a network external to the vehicle.Type: GrantFiled: May 29, 2007Date of Patent: March 25, 2014Assignee: Audi AGInventors: André Ebner, Roman Ranzinger
-
Patent number: 8676246Abstract: A position information obtaining section 102 obtains position information indicating the current position of an information communication terminal 100. A safety area storing section 103 stores in advance a safety area considered as being safe because the security risk such as information leak is low. A safety determination section 104 determines, based on the position information and the safety area, the security risk of wireless communication performed by the information communication terminal 100 at the current position. The communication control section 105 controls a wireless communication section 106 so as to transmit a radio signal at a larger radio wave intensity when the safety determination section 104 has determined that the risk is low, and to transmit a radio signal at a smaller radio wave intensity when the safety determination section 104 has determined that the risk is high.Type: GrantFiled: January 25, 2012Date of Patent: March 18, 2014Assignee: Panasonic CorporationInventor: Satoshi Inami
-
Patent number: 8666427Abstract: A method for mobile communication and a system thereof are provided. The system for mobile communication includes a main base station and a plurality of sub-communication devices. The sub-communication device is one of a sub-base station and a user equipment. The sub-base stations and the user equipments are located in the macrocell of the main base station. The method includes the following steps. First, locations of the sub-communication devices are obtained. Then, the sub-communication devices are grouped based on the locations of the sub-communication devices. And, an allocation of resource blocks is obtained according to the grouping results. The sub-communication devices receive the allocation of resource blocks for control signaling and data transmission. And, the usage of same resource blocks are enabled by the sub-base station allocated in the same resource blocks in response to receipt of the allocation.Type: GrantFiled: April 8, 2010Date of Patent: March 4, 2014Assignee: Industrial Technology Research InstituteInventors: Yan-Xiu Zheng, Yung-Han Chen, Hao-Wen Chen
-
Patent number: 8665809Abstract: Systems and methodologies are described that facilitate sending a power control command in a wireless communication environment. A base station can send a power control command to a UE through resource elements reserved for at least one Physical Downlink Control Channel (PDCCH). Thus, the power control command can be punctured into a control channel element (CCE) reserved for the at least one PDCCH. Further, the base station can convey an indicator that specifies the resource elements reserved for the at least one PDCCH used for sending the power control command to the UE. Moreover, the base station can use a structure similar to a conventional (e.g., Release 8, . . . ) PHICH structure for sending the power control command using the resource elements reserved for the at least one PDCCH. For example, the power control command can be spread using one or more Walsh codes assigned to the UE.Type: GrantFiled: June 14, 2010Date of Patent: March 4, 2014Assignee: QUALCOMM IncorporatedInventors: Durga Prasad Malladi, Yongbin Wei, Tao Luo
-
Publication number: 20140051350Abstract: Method and apparatus for dynamically optimizing the transmission level of each remote terminal in a satellite-based communication network. Each remote terminal maintains quasi-error-free communication at the highest efficiency level available under changing link conditions and network configurations, without requiring the reservation of substantial power margins, which results in a much more efficient satellite network.Type: ApplicationFiled: October 23, 2013Publication date: February 20, 2014Applicant: GILAT SATELLITE NETWORKS LTD.Inventors: Isacc Ben Laish, Magal Pinchas, Ronen Tamam
-
Patent number: 8654816Abstract: The invention relates to a method 20 in a base station 2 for determining a transmission rank. The base station 2 controls two or more transmit antenna ports 3a, 3b for supporting a multi-antenna transmission mode and for transmission of data on a channel for communication with a user equipment 4. The method 20 comprises receiving 21 a rank indicator from a user equipment 4, the rank indicator indicating the number of spatial multiplexing layers recommended by the user equipment 4, and determining 22 the transmission rank based on a channel imbalance factor CIF, wherein the channel imbalance factor CIF quantifies a difference in receive power of the two or more transmit antenna ports 3a, 3b. The invention also relates to a base station, methods in user equipment, user equipment, computer programs, and computer program products.Type: GrantFiled: October 18, 2011Date of Patent: February 18, 2014Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Haochuan Zhang, Yang Hu, Shaohua Li, Xinghua Song, Jianfeng Wang
-
Patent number: 8654701Abstract: A method of supporting frequency-selective repeaters (eNodeRs) in a wireless telecommunication system. A base station (eNodeB) classifies User Equipments (UEs) into two categories or lists of users: a white list containing UEs that may need the assistance of repeaters, and a black list containing UEs that do not need repeater assistance. The eNodeB transmits one of these two lists to the eNodeRs. The eNodeRs do not amplify resource blocks (RBs) scheduled for black list UEs. Each repeater may decide on its own whether to amplify signals for a non-black list UE by measuring signals from the UE and comparing them with predefined criteria.Type: GrantFiled: October 16, 2009Date of Patent: February 18, 2014Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Muhammad Kazmi, Jiansong Gan, Robert Baldemair, Zhang Zhang
-
Patent number: 8655396Abstract: A method for a wireless communication includes receiving or storing a peak to average (PAR) back off value; and applying the PAR back off value to determine the transmission power and rate for SIMO and MIMO transmissions. In one aspect, the PAR back off value is at least partially based on modulation type. In another aspect, the PAR back off value is more for higher order QAM than for QPSK. The power allocation algorithm for different UL MIMO schemes is described as follows. For MIMO without antenna permutation (e.g. per antenna rate control), different PAR back off values are considered for different data streams. For MIMO with antenna permutation or other unitary transformation such as virtual antenna mapping or precoding, the PAR back off are determined based on combined channel. The transmission data rate depends on power and also the receiver algorithms such as a MMSE receiver or MMSE-SIC receiver.Type: GrantFiled: November 6, 2007Date of Patent: February 18, 2014Assignee: QUALCOMM IncorporatedInventors: Durga Prasad Malladi, Hao Xu
-
Patent number: 8655270Abstract: Method for managing power and bandwidth resources in operation over a plurality of links from a hub, said power and bandwidth resources being limited, the method comprising: initially assigning power and bandwidth combinations to individual links according to current conditions pertaining to respective links, each combination having a corresponding resource cost; and controllably changing said initially assigned combinations at respective ones of said links to reduce respective resource costs, thereby to controllably balance an overall resource cost of said plurality of links to lie within available overall power and bandwidth resource limitations.Type: GrantFiled: April 22, 2009Date of Patent: February 18, 2014Assignee: Elbit Systems Land and C41—Tadiran Ltd.Inventor: Shaul Laufer
-
Patent number: 8655279Abstract: The present specification describes techniques and apparatus that enable wireless devices to communicate effectively at short ranges. In one implementation, the transmit power of a transmitting device is reduced to permit a receiving device to demodulate a signal.Type: GrantFiled: October 19, 2012Date of Patent: February 18, 2014Assignee: Marvell World Trade Ltd.Inventor: Raja Banerjea
-
Patent number: 8644771Abstract: A portable communication device is provided. The device comprises a first radio transceiver operable for wireless communication in an unlicensed radio spectrum band, a directional antenna coupled to the first radio transceiver, a processor, and an application. When executed by the processor, the application analyzes a power level of a signal received by the first radio transceiver and controls a transmission power level of the first radio transceiver based at least in part on the power level of the received signal.Type: GrantFiled: May 26, 2011Date of Patent: February 4, 2014Assignee: Sprint Communications Company L.P.Inventors: Jason R. Delker, Sei Y. Ng
-
Patent number: 8626060Abstract: In an embodiment, a first repeater configures a beacon signal that identifies the first repeater to one or more other repeaters. The first repeater transmits the configured beacon signal at a given transmission power level to the one or more other repeaters. The transmitted beacon signal is received at least by a second repeater. The second repeater reduces interference associated with other transmissions from the first repeater, such as retransmissions of donor signals, based on the received beacon signal.Type: GrantFiled: April 14, 2011Date of Patent: January 7, 2014Assignee: QUALCOMM, IncorporatedInventors: Michael Mao Wang, Dhananjay Ashok Gore, Gwendolyn Denise Barriac
-
Patent number: 8626225Abstract: A method for reporting power headroom-related information for a plurality of aggregated carriers. The method includes reporting the power headroom-related information for a number of the aggregated carriers that is less than or equal to the total number of aggregated carriers.Type: GrantFiled: May 21, 2010Date of Patent: January 7, 2014Assignee: BlackBerry LimitedInventors: Youn Hyoung Heo, Zhijun Cai, Andrew Mark Earnshaw, Sean McBeath, Mo-Han Fong
-
Patent number: 8626227Abstract: 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: GrantFiled: December 13, 2010Date of Patent: January 7, 2014Assignee: Fujitsu LimitedInventors: Chenxi Zhu, Wei-Peng Chen
-
Patent number: 8611815Abstract: Exemplary embodiments are directed to wireless power transfer. A wireless power transfer system include a transmit circuit with a transmit antenna driven from a power amplifier to generate a near field radiation at a resonant frequency within a first coupling mode region surrounding the transmit antenna. One or more repeater antennas are disposed at different locations within the first coupling mode region. Each repeater antenna generates an enhanced near field radiation at the resonant frequency within a coupling mode region corresponding to that repeater antenna. One or more receive circuits including a receive antenna receive power when they are disposed in one of the coupling mode regions corresponding to that repeater antenna.Type: GrantFiled: November 6, 2008Date of Patent: December 17, 2013Assignee: Qualcomm IncorporatedInventors: Alireza Hormoz Mohammadian, Ernest T. Ozaki, Matthew S. Grob
-
Patent number: 8599743Abstract: 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: GrantFiled: November 15, 2010Date of Patent: December 3, 2013Assignee: Ricoh Company, Ltd.Inventor: Sadahiro Kimura
-
Patent number: 8599958Abstract: An ultra-high-bandwidth low-power-consumption wireless communication system includes (i) a Radio Frequency Integrated Circuit (RFIC) comprising a radio transmitter, transmitting millimeter-wave signals. The radio transmitter includes a Power Amplifier (PA) outputting the millimeter-wave signals at a low power level of between ?10 dBm and 20 dBm, and by that allowing inclusion of the PA in the RFIC. The radio transmitter further includes a Voltage Controlled Oscillator (VCO) and a synthesizer driving a mixer up-converting signals into the millimeter-wave signals. The VCO and synthesizer have a combined phase noise between a first level and a second level, wherein the first level is high enough to allow inclusion of the VCO and synthesizer in the RFIC, and the second level is low enough to facilitate transmitting at 16-levels Quadrature-Amplitude-Modulation (16QAM).Type: GrantFiled: September 29, 2010Date of Patent: December 3, 2013Assignee: Siklu Communication Ltd.Inventors: Baruch Schwarz, Izhak Kirshenbaum, Yigal Leiba
-
Patent number: 8600424Abstract: 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: GrantFiled: June 15, 2010Date of Patent: December 3, 2013Assignee: QUALCOMM IncorporatedInventors: Wanshi Chen, Juan Montojo, Aamod Dinkar Khandekar, Tingfang Ji
-
Patent number: RE44858Abstract: A circuit is designed with a measurement circuit (432). The measurement circuit is coupled to receive a first input signal (903) from a first antenna (128) of a transmitter and coupled to receive a second input signal (913) from a second antenna (130) of the transmitter. Each of the first and second signals is transmitted at a first time. The measurement circuit produces an output signal corresponding to a magnitude of the first and second signals. A control circuit (430) is coupled to receive the output signal and a reference signal. The control circuit is arranged to produce a control signal at a second time in response to a comparison of the output signal and the reference signal.Type: GrantFiled: July 20, 2011Date of Patent: April 22, 2014Assignee: Texas Instruments IncorporatedInventors: Srinath Hosur, Anand G. Dabak