Based On Schedule Information Patents (Class 455/343.4)
  • Patent number: 8670419
    Abstract: A method for intra-user quality of service (QoS) uplink scheduling may include determining scheduling types associated with active uplink connections that are maintained by the subscriber station. The method may also include determining QoS parameters corresponding to the different scheduling types. The method may also include scheduling the active uplink connections for uplink transmissions based on the different scheduling types and their corresponding QoS parameters.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: March 11, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Tom Chin, Kuo-Chun Lee, Chun Woo Lee, Jong Ro Park
  • Patent number: 8665962
    Abstract: A method of operating a digital television decoder is disclosed. The decoder includes a memory, the memory storing onboard software, and the decoder is operable in a run mode to execute the onboard software. The method comprises: activating a power saving mode on the decoder; and upon activating the power saving mode: maintaining power to the memory; suspending execution of the onboard software; acquiring an execution context of the onboard software; updating the execution context of the onboard software to form an updated execution context; and saving the updated execution context in the memory.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: March 4, 2014
    Assignee: NDS Technologies France
    Inventors: Hassan Taleb, David Ludet, Eric Delaunay, Nicolas Beaunoir, Thierry Furet, Franck Bellanger, Laurent Chauvier, Laurent Proust, Laurent Douat
  • Patent number: 8660479
    Abstract: A digital radio broadcast system includes a processing system that receives first audio content, first program data identifying a first item for the first audio content, second audio content, and second program data identifying a second item for the second audio content such that a start of the first program data is received at the processing system within 0.5 seconds of a start of the first audio content. A digital radio broadcast signal including the audio content and the program data is processed for digital radio broadcast transmission via a transmitter. The processing system stops delivery of the first program data to the transmitter upon receipt of the second program data, the first program data thereby being truncated, and begins delivery of the second program data to the transmitter. A digital radio broadcast receiver can tag content of interest based on a user command registered at the receiver.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: February 25, 2014
    Assignee: iBiquity Digital Corporation
    Inventors: Steven Andrew Johnson, Robert Michael Dillon, Harvey Chalmers
  • Patent number: 8638704
    Abstract: Embodiments of methods for optimizing power savings in a wireless device by maintaining sleep in sub-frames of an extended Listen Window, in an I.E.E.E. 802.16m communication system. In one embodiment, the Listen Window is extended into the Sleep Window, wherein at least one sub-frame remains designated for sleep. The power savings may be used when HARQ retransmissions are scheduled or for VoIP transmissions and so forth.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: January 28, 2014
    Assignee: Intel Corporation
    Inventors: Maruti Gupta, Elad Levy, Shantidev Mohanty, Aran Bergman
  • Patent number: 8630606
    Abstract: A communications terminal registered as a controlled terminal in a controlling terminal which controls the controlled terminal via a communications network, the communications terminal includes a receiving unit (15020) which receives a sleep message including information indicating whether or not the controlling terminal is sleeping and information indicating a timing when the controlling terminal leaves sleep mode and wakes up; a detecting unit (15030) which detects a transmission of a registration request for requesting that a new terminal be registered in the controlling terminal as a new controlled terminal, the new terminal being another communications terminal not yet registered in the controlling terminal; and a notifying unit (15040) which determines whether or not the controlling terminal is sleeping based on the sleep message, and notifies the new terminal of the timing by sending the sleep message when the controlling terminal is sleeping and when the transmission of the registration request is det
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: January 14, 2014
    Assignee: Panasonic Corporation
    Inventors: Tien Ming Benjamin Koh, Peng Bin, Pek Yew Tan, Yosuke Matsushita, Yuki Ohira
  • Patent number: 8619652
    Abstract: A system and method for power saving in a wireless network for transmitting uncompressed audio/video (A/V) data disclosed. The method includes an adaptive sleep period scheme in which the current sleep period is computed based at least partly on one or more previous sleep periods. The method also includes entering an inactive state by a coordinator as well as non-coordinator stations in the wireless network in which no beacons are transmitted.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: December 31, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Harkirat Singh, Xiangping Qin, Huai-Rong Shao, Chiu Ngo
  • Patent number: 8611266
    Abstract: A power control apparatus of a wireless communication terminal providing a voice over internet protocol (VoIP) service in a wireless communication system includes a user interface unit configured to include a voice CODEC using in the VoIP service, a controller configured to be connected to the user interface unit, include predetermined application programs including a VoIP application program, and control signaling for setting up a VoIP call and canceling a VoIP call, and a medium access control (MAC) processor configured to perform a medium access control function and include a timer unit for beginning a unscheduled-service period (U-SP) by receiving a VoIP call setup signal and a VoIP call cancel signal from the controller.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: December 17, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seungkwon Cho, Jaewoo Park, Sok-Kyu Lee
  • Patent number: 8611970
    Abstract: A method includes receiving, at a station, a first delivery traffic indication message (DTIM) assigned to a first delivery interval. The first DTIM is configured to indicate whether group-addressed traffic is scheduled for delivery during a beacon interval. The first delivery interval is larger than a second delivery interval associated with a second DTIM. The method further includes receiving the group-addressed traffic during the beacon interval.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: December 17, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Arnaud Meylan, Manoj M. Deshpande, Sanjiv Nanda
  • Patent number: 8605655
    Abstract: In general, techniques are described for mapping precedence domains between a network device of a content access network and a wireless communication device. For example, a Policy Charging and Enforcement Function (PCEF) entity maps relatively high-resolution mobile network policy and charging and control (PCC) rule precedence to relatively low-resolution packet filter precedence. The PCEF performs the mapping to maintain a packet filter precedence ordering for packet filters that accords with a precedence ordering among respective PCC rules from which the PCEF derives the packet filters.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: December 10, 2013
    Assignee: Juniper Networks, Inc.
    Inventors: Gazal Sahai, Prasad Chigurupati
  • Patent number: 8599730
    Abstract: Methods and apparatus for reducing power consumption of a mobile station (MS) during layer 3 (L3) peer-to-peer (P2P) communications employing a request/response message pair are provided. To save power, the MS may enter a power saving mode after transmitting a request message and initiating a timeout timer for the message pair, wherein the power saving mode may have an interval available for receiving the response message and an unavailable interval. The timeout timer may be suspended during the unavailable interval and resumed during the available interval such that the timeout timer is effectively lengthened.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: December 3, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Steven D. Cheng, Tom Chin, Yu Wang
  • Patent number: 8594646
    Abstract: A wireless device is wirelessly connected to a wireless network which is controlled by network control apparatus. The wireless device operates in a first activity state in which data can be transmitted to and received from the wireless network over one or more dedicated logical channels. The wireless device transitions to operate in a second activity state having lower power consumption than the first activity state if it is determined by the wireless device that data has not been transmitted by and has not been received at the wireless device for a predetermined period of time. The predetermined period of time is known to both the wireless device and the network control apparatus. The transition takes place synchronously without requiring control signals to be passed between the wireless device and the network control apparatus.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: November 26, 2013
    Assignee: Renesas Mobile Corporation
    Inventors: Brian Martin, Keiichi Kubota
  • Patent number: 8588728
    Abstract: A method and apparatus to manage the paging cycle of a communication device are disclosed. The method includes receiving, by an element of a communication system, at least one message comprising an idle mode request, a battery charge level of a battery of the communication device, and a desired paging information from the communication device, from the communication device, determining a paging information for the communication device based on the battery charge level by selecting a first paging cycle when the battery charge level meets a charge level criteria and selecting a second paging cycle when the battery charge levels does not meet the charge level criteria, the second paging cycle being longer than the first paging cycle, and transmitting a response message comprising the determined paging information to the communication device.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: November 19, 2013
    Assignee: Sprint Spectrum L.P.
    Inventor: Kafi I Hassan
  • Patent number: 8583197
    Abstract: Aspects of a method and system for sharing antennas for high frequency and low frequency applications may include configuring a multi-frequency antenna system by coupling a plurality of antennas together communicatively via one or more frequency-dependent coupling elements. Radio signals may be received and/or transmitted on one or more radio frequencies via said configured multi-frequency antenna system. The one or more frequency-dependent coupling elements may be frequency-tunable, and may comprise microstrips, transmission lines, and/or RLC circuits. The multi-frequency antenna system may be configured for concurrent operation or time-division duplex operation during the transmitting and/or the receiving. The one or more radio frequencies may operate concurrently or in time-division duplex. The radio signals for transmission may be generated in one or more radio frequency front-ends, and the received radio signals may be demodulated in one or more radio frequency front-ends.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: November 12, 2013
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza Rofougaran
  • Patent number: 8583101
    Abstract: The present invention provides a method and an apparatus for synchronizing heartbeat behavior. The method includes: acquiring a period list and a time list; acquiring a period length of the heartbeat behavior according to the period list; acquiring synchronization time according to the time list, a heartbeat period, and a preset multiple; and synchronizing at least one type of heartbeat behavior by using the period length of the heartbeat behavior as a period from the synchronization time.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: November 12, 2013
    Assignee: Huawei Device Co., Ltd.
    Inventors: Wei Xu, Konggang Wei
  • Patent number: 8570924
    Abstract: The present invention relates to a method and arrangement for efficient use of network resources, in particular for continuous connectivity services. The present invention introduces a set of established rules for uplink and/or downlink activity detection such that a Node B and/or a UE is enabled to detect active and inactive transmission periods on links for reception of packet data transmission and can independently arrange for inactivity/activity state transitions without any need of further signalling. Such a set of rules can be communicated to the Node B and the user equipment, e.g., from the radio network controller (RNC), or can consist of a predefined set of fixed rules that is readily implemented in said units.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: October 29, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Dirk Gerstenberger, Stefan Parkvall, Johan Bergman
  • Patent number: 8570925
    Abstract: A method for reducing power consumption in wireless devices includes establishing a wireless link between a local device and a remote device and sending a message to the remote device across the wireless link. The message may specify a communication schedule. Communications between the local device and the remote device are performed according to the communication schedule. The communication schedule specifies time periods in which data is not transferred between the local device and the remote device, and during such time periods at least one of the local device or the remote device enters a low power mode.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: October 29, 2013
    Assignee: Marvell World Trade Ltd.
    Inventor: Raja Banerjea
  • Patent number: 8559376
    Abstract: A method and an apparatus for determining transmission power are disclosed. A gain factor of an E-DPDCH in a compressed mode is determined according to the number of E-DPDCHs used for initial transmission of data; and the transmission power of the E-DPDCH is determined according to the gain factor of the E-DPDCH in compressed mode. As the gain factor of E-DPDCH in compressed mode is determined according to the number of the E-DPDCHs for initial transmission of data, the gain factor of the E-DPDCH in compressed mode can be determined accurately, and thus the transmit power of the E-DPDCH can be determined accurately according to the gain factor of the E-DPDCH. Therefore, the waste of transmit power of the E-DPDCH is reduced, and thus the system capacity is improved.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: October 15, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Weixin Wang, Xueli Ma, Zongjie Wang
  • Patent number: 8527017
    Abstract: Page monitoring in a proxy relationship is optimized through creation of a new page occasion (PO) or paging frame (PF). The new PO/PF includes pages for each client-proxy relationship. Once the new PO/PF is communicated to the proxy, the proxy monitors for the pages of each client by monitoring a single PO/PF. Depending on the embodiment implemented, the network will either continue to also transmit pages during original PO or cease such transmission. On detection of a failed link between the proxy and client, the client may begin to monitor the original pages in such networks, or will begin monitoring using the new PO/PF until the network notifies the client that the state has changed.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: September 3, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Samir S. Soliman, Nishith Chaubey, Olufunmilola O. Awoniyi, Ramanathan Viswanathan
  • Patent number: 8521229
    Abstract: In a cellular telephone apparatus a sub-terminal constitutes a part of the cellular telephone apparatus and is separable from a main terminal constituting the apparatus body. Each of the sub-terminal and the main terminal has a battery section, provided are battery remaining amount detecting sections, battery remaining amount notifying sections, table holding sections that hold operation tables that define operations of devices that the main terminal and sub-terminal have corresponding to the battery remaining amounts of the main terminal and sub-terminal. Control sections are provided that determine the operations of devices available based on battery remaining amount.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: August 27, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventor: Naoki Naruse
  • Patent number: 8514757
    Abstract: A method of performing a ranging process between a base station and a mobile station in sleep mode in a wireless access system, wherein the base station provides the mobile station with an initial notification of a periodic ranging time that occurs during a sleep time interval and during which the mobile station is to perform the ranging process, the initial notification included in a first message, the first message indicating whether the mobile station should terminate sleep mode to receive downlink data, and wherein the base station provides the mobile station with subsequent notifications of periodic ranging times that occur during the sleep time interval, the subsequent notifications indicated in a second message, the second message transmitted to the mobile station as part of the ranging process such that the mobile station performs a plurality of ranging processes within the sleep time interval.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: August 20, 2013
    Assignee: LG Electronics Inc.
    Inventors: Chang-Jae Lee, Ki-Seon Ryu, Beum-Joon Kim
  • Patent number: 8509861
    Abstract: A power management method with a portable electronic device (100) includes identifying, with a controller (202) of the portable electronic device, a power consumption event in the portable electronic device, the power consumption event having a power consumption requirement. The method further includes selecting (818), in response to the identifying, one of a collection of energy storage devices (304, 306, 308, 320) in an energy storage device farm (218) for the portable electronic device, the selecting being based at least on the power consumption requirement of the power consumption event and on one or more characteristics of the one of the plurality of energy storage devices. The portable electronic device executes the power consumption event using energy stored in the selected one of the plurality of energy storage devices. The portable electronic device (100) may be a mobile phone or other wireless communication device.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: August 13, 2013
    Assignee: Research In Motion Limited
    Inventors: Eric Thomas Eaton, Dusan Veselic, Jeffrey Charles Bos
  • Patent number: 8494478
    Abstract: A data backup system is provided. The system comprises a first device configured to identify a data to transmit and to transmit the data at a selected time, wherein the data is stored on the first device. The system also comprises a mobile phone in communication with the first device, wherein the mobile phone is configured to receive the data from the first device, to store the data in a memory of the mobile phone, and to transmit the data. The system further comprises a backup server in communication with the mobile phone configured to receive the data from the mobile phone, wherein the memory of the mobile phone is freed after transmitting the data to the backup server.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: July 23, 2013
    Assignee: Sprint Communications Company L.P.
    Inventor: Sunil K. Ponnangath
  • Patent number: 8494479
    Abstract: Different components in a wireless transceiver are powered using different power supplies. For example, one or more first tasks in the wireless transceiver can be powered with a Galvanic cell, and one or more second tasks in the wireless transceiver can be powered with a fuel cell. The one or more first tasks could represent higher-current or intermittent tasks, and the one or more second tasks could represent lower-current or continuous tasks. The one or more first tasks could include transmission of a radio frequency (RF) signal, which may involve RF signal modulation or RF signal amplification. The one or more second tasks could include RF signal tuning, RF signal reception, RF signal demodulation, analog-to-digital conversion, digital-to-analog conversion, digital signal processing, operation of a controller, illumination of a display, operation of an audio speaker, operation of a microphone, or operation of a keypad.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: July 23, 2013
    Assignee: Honeywell International Inc.
    Inventors: Ramakrishna S. Budampati, Anoop K. Mathur, Hai D. Pham
  • Patent number: 8488505
    Abstract: A method and system are provided for conserving network resources such as battery power of a battery-powered communication device used to support a conversation over a wireless network transport media. Periods of silence are detected during conversation taking place on a network having controllable resources such as battery power. Using the periods of silence so-detected, future silence periods occurring on the network are then predicted. Allocation of at least a portion of the controllable resources is controlled based on the future silence periods so-predicted.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: July 16, 2013
    Assignee: College of William and Mary
    Inventors: Andrew J. Pyles, Gang Zhou, Zhen Ren
  • Patent number: 8463229
    Abstract: A system for managing wireless communication in view of other potentially interfering wireless signal sources. Signal-related information may be collected from one or more apparatuses that are participating in a network. The information may then be evaluated in order to determine expected signal activity in the environment in which the apparatuses are operating. In some instances the signal activity may then be compared to a scan schedule utilized, for example, to identify legacy apparatuses operating in the environment. This scan schedule may be altered to avoid potential conflicts that may exist with the expected signal activity. The scan schedule may then be communicated to the networked apparatuses.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: June 11, 2013
    Assignee: Nokia Corporation
    Inventors: Jan Erik Suumäki, Zexian Li, Andrea Bacioccola
  • Patent number: 8452353
    Abstract: Various embodiments for providing enhanced battery conservation in mobile devices are described. In one or more embodiments, a mobile computing device may include a processor and a battery to supply power to the processor. The device may store user pattern data and/or user preference data. The device may further include a power management module coupled to the processor. The power management module may monitor a location of the device, wireless signal strength, and date/time. The power management module may also monitor and analyze user operation of the device to identify scenarios in which wireless communications can be suspended. The power management module may suspend wireless communication according to these monitored conditions, and analyzed user operations, to reduce battery consumption. Other embodiments are described and claimed.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: May 28, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Jordan Crawford
  • Patent number: 8428515
    Abstract: Apparatus and method for generating a rectified output signal in a RFID tag from first and second alternating signals. A dual-terminal rectifier device has first and second input terminals to which the first and second alternating signals are applied, and further has a gate configured to form a conductive channel to electrically couple the first and second input terminals to the output terminal in response to a gate voltage. The dual-terminal rectifier device is configured to rectify a combination of the alternating input signals applied to the input terminals of the semiconductor device to generate a rectified output signal at an output terminal.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: April 23, 2013
    Assignee: Impinj, Inc.
    Inventor: Ronald A. Oliver
  • Patent number: 8422984
    Abstract: Techniques presented herein allow connections with different (albeit possibly similar) scheduling or data delivery services to be aggregated (or “bundled”) into groups, with each group assigned a common Power Savings Class Type. Bundling different connections into common PSC types may reduce the overall number of different sleep windows for active connections, which may help reduce overall power consumption. For example, by automatically activating different PSC types (for different bundles of connections), the reduced number of sleep windows may overlap in a manner that results in the MS spending more overall time in a low power state than when conventional “unbundled” PSC schemes are utilized.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: April 16, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Tom Chin, Kuo-Chun Lee
  • Patent number: 8422982
    Abstract: A method and apparatus for energizing a multi-channel LNBF containing multiple LNB(s) the LNBF connected to multiple IRDs. The number of IRDs present is detected. If more than one IRD is present, all LNBs are energized. If only one IRD is detected, power sufficient to supply the LNB the IRD has selected is supplied. Identification of which LNB the single IRD has selected may be determined by monitoring the presence of a desired voltage, frequency tone, and or series of frequency tones.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: April 16, 2013
    Assignee: Raven NC LLC
    Inventors: Andrew Baird, Jonathan Walker
  • Patent number: 8385842
    Abstract: Provided are a wireless communication terminal that can select a power-efficient wireless communication system while keeping a data rate at a fixed level, and a communication system selection method. A wireless communication terminal is designed to be able to operate selectively according to a plurality of communication systems, and is configured to include: a required data rate calculation section that calculates a required data rate as a data rate needed to be satisfied in accordance with a remaining level of power and a communication history; and a communication system selection section that selects which communication system to be used through a comparison between a data rate of each of the communication systems to be determined based on a measured quality of communication service, and the calculated required data rate.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: February 26, 2013
    Assignee: KDDI Corporation
    Inventors: Kosuke Yamazaki, Issei Kanno
  • Patent number: 8385878
    Abstract: Embodiments include methods of activity control in which a time of initiation of an active period of a discontinuous reception (DRX) cycle is based on a value calculated with respect to a wireless signal received during an active period of a previous DRX cycle.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: February 26, 2013
    Inventors: Anil S. Rao, Subramanya P. Rao
  • Patent number: 8374652
    Abstract: A system for terminating a receive correlation window of a receiving wireless device includes a radio frequency receiver configured to open a receive correlation window having a predetermined duration and an energy measurement circuit configured to measure a radio frequency energy level ambient to the wireless receiver. A comparator is included that is configured to determine, based on the measured radio frequency energy level, whether or not a signal is being transmitted from a nearby wireless device. The receiver is further configured to close the receive correlation window before the predetermined duration is reached in response to a determination by the comparator that no signal is being transmitted by a nearby device. If a signal is being transmitted, then the receive correlation window is allowed to proceed uninterrupted.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: February 12, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Yaniv Tzoreff, Ronen Isaac, Ran Katz, Matan Ben-Shachar
  • Patent number: 8362918
    Abstract: A power saving system and method for the home appliances and home network devices is provided. The system provides an energy consumption monitoring and standby power saving system that is connected to home appliances and that may detect the amount of power consumed by corresponding home appliances. The system includes one or more energy saving nodes which approve application or shut-off power to a corresponding home appliances, and an energy saving server that is connected to each of the energy saving nodes and collects status information of the corresponding home appliances including said amount of power consumption from said nodes.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: January 29, 2013
    Assignee: Korea Electronics Technology Institute
    Inventors: Kwangsoon Choi, Youngchoong Park, Yangkeun Ahn, Kwangmo Jung, Woochool Park, Haemoon Seo, Kyeunghak Seo
  • Patent number: 8363582
    Abstract: When a wireless communication station, which is about to communicate while intermittently receiving a multicast service, transmits, to an access point, a request packet describing information on the multicast service and an intermittent reception request, the access point describes, in a packet, intermittent reception timing information corresponding to the multicast service information described in this request packet, and replies with this packet to the wireless communication station. The wireless communication station reads the intermittent reception timing information from the received packet, and performs transition to the Awake state or the Doze state according to this intermittent reception timing. The access point, on the other hand, transmits the multicast packet to the wireless communication station according to the intermittent reception timing.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: January 29, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Kei Igarashi, Akira Yamada
  • Patent number: 8346313
    Abstract: Techniques for dynamically selecting warm-up time for a wireless device operating in the idle mode are described. At each active interval, conditions affecting warm-up of the wireless device at a next active interval are determined. The conditions may pertain to channel conditions, operating conditions, and/or hardware configuration. A warm-up time is selected based on the determined conditions. A wake-up time for the next active interval is determined based on the selected warm-up time. The wireless device then goes to sleep until the wake-up time. In one scheme, the strongest pilot acquired in each active interval is identified, and its pilot strength is averaged to obtain an average pilot strength. The average pilot strength is compared against at least one threshold, and one of at least two possible time durations is selected for the warm-up time based on the comparison result.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: January 1, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Alex Kuang-Hsuan Tu
  • Patent number: 8326243
    Abstract: The electronic circuit includes: a micro controller unit; a timer operable to measure a standby time of the micro controller unit; a buffer circuit connected with an output-signal terminal of the timer; a logic circuit controlled by an output signal of the timer and an output signal of the micro controller unit; and a power-on switch controlled by the logic circuit. The buffer circuit has no protection diode connected with an input terminal thereof on a power-source side, and connected to a common power source shared with the micro controller unit. The switch is one for controlling the power source of the micro controller unit and buffer circuit. The micro controller unit is made to transition to an active state to either a standby state or a power-source cutoff state during the standby time.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: December 4, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Tatsuo Nakagawa, Masayuki Miyazaki
  • Patent number: 8326375
    Abstract: A method for managing operation of a device, the method including performing using one or more processors and/or circuits in a handheld device, the one or more processors and/or circuits including a control device and one or more other devices, functions including receiving from the control device, one or more power setting signals indicative of a desired power level setting. The handheld device may operate utilizing a NORMAL power level setting in a normal mode, or a standby power level setting in standby mode. The standby power level setting may include a LOW power level setting and a sleep mode setting. One or more corresponding power adjustment signals may be generated based on the received one or more power setting signals. Power supplied to the handheld device may be adjusted based on the generated one or more corresponding power adjustment signals.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: December 4, 2012
    Assignee: Broadcom Corporation
    Inventor: Paul Lu
  • Patent number: 8295860
    Abstract: An access gateway comprises a processor. The processor is operable to determine a message type of a received packet. The processor is further operable to apply a paging rule. The paging rule is related at least in part to the message type of the received packet. The processor is further operable to determine whether to send a request to transition the mobile device to an active state based on the paging rule. The processor is further operable to send a request, when appropriate, to transition the mobile device to an active state.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: October 23, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Jayaraman R. Iyer, Anand K. Oswal, Michael Lindsay Shannon, Timothy P. Stammers
  • Patent number: 8270329
    Abstract: A system and method allows devices to send and receive packets while using power to do so to the extent needed, thereby conserving power.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: September 18, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Jonathan W. Hui, David E. Culler
  • Patent number: 8270938
    Abstract: A method of 2-way data and voice communication with a user utilizing a portable device having a cellular transceiver module, a GPS module and an emergency call button is disclosed. The method includes determining whether the portable device is in proximity of the base station; powering down the GPS, placing the portable device into sleep mode and sending a signal to the base station indicating that said portable device is in proximity of the base station when the portable device is in proximity to the base station; and activating and fully powering the cellular transceiver module and activating and fully powering said GPS module when the portable device is not in proximity of said base station.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: September 18, 2012
    Assignee: Integrity Tracking, LLC
    Inventors: Robert Flippo, Elias M. Janetis, Ernest F. Pasanen
  • Patent number: 8271058
    Abstract: A first device communicates with a wireless network that includes nodes that are active for predefined activation times and that are at least partially dormant when not active. The communication method includes identifying a start of communication via a message that exceeds a maximum activation time of nodes on the wireless network by a factor N, where N is equal to at least a maximum number of frequencies on the wireless network, and exchanging information with a second device comprising a node on the wireless network that is within a transmission range of the first device, where the information is exchanged following the message and includes frequency hopping data for the second device.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: September 18, 2012
    Assignee: Millennial Net, Inc.
    Inventors: Sokwoo Rhee, Sheng Liu
  • Patent number: 8265080
    Abstract: Methods of performing retransmissions in respect of communications, uplink and/or downlink, on semi-persistent resources are provided. Various embodiments include: the mobile device keeps its radio on for an additional period immediately following an awake period upon determining there will be a retransmission; the mobile device turning its radio on for an additional period separate and distinct from the awake period.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: September 11, 2012
    Assignee: Motorola Mobility LLC
    Inventors: Zhijun Cai, James Earl Womack
  • Patent number: 8265677
    Abstract: A telecommunications network for mobile terminals, in particular a wireless LAN network, includes a plurality of network access points defining a network coverage area and each one associated with a respective transmission channel; at least one mobile terminal adapted to move inside the coverage area and configured for performing a transmission channels scanning; a terminal locating server, configured for determining a position in which the terminal must perform the scanning, for determining a set of channels adapted to be received in the position with predetermined transmission characteristics, and for communicating such set of channels to the mobile terminal, so that the scanning, for example, for tracking or handover purposes, can be performed on a limited number of channels, thereby increasing the useful time for providing telecommunication services.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: September 11, 2012
    Assignee: Telecom Italia S.p.A.
    Inventor: Massimo Colonna
  • Patent number: 8255012
    Abstract: A mobile phone and a status control method adapted for the mobile phone are provided. The mobile phone communicates with a wireless network, such as GPRS. The mobile phone includes a data reception unit, a processing unit, and a storage unit. The processing unit records a start time and a stop time of each event which defines the running of an application program when data reception unit transfers data packet of the application program, and calculates an average interval time of the application program, and stores the average interval time. When a waiting time reaches the average interval time of the application program in the ready state, the mobile phone enters the standby state in advance, and thus the mobile phone does not need send updated location information to the SGSN and saves a lot of power.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: August 28, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chi-Sheng Ge
  • Patent number: 8248978
    Abstract: Techniques for detecting other stations in a power efficient manner are described. A station may operate in a passive mode or a search mode. In the passive mode, the station receives for one receive period in each time interval. In the search mode, the station transmits for a series of transmit periods in one time interval, then receives for one receive period in the next time interval, and repeats the transmit/receive cycle. In an example scenario, station A operates in the search mode and sends a series of transmissions during its transmit periods. Station B operates in the passive mode, receives a transmission from station A during its receive period, switches to the search mode, and sends a series of transmissions for one time interval. Station A receives a transmission from station B during its receive period. After detecting one another, stations A and B may perform synchronization.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: August 21, 2012
    Assignee: Qualcomm Incorporated
    Inventors: Xiandong Zhang, Mark S. Wallace, J. Rodney Walton
  • Patent number: 8243639
    Abstract: A method is provided which enables the connection of nodes out of communication range while minimizing the energy consumption in standby nodes. Specifically, the present invention provides a method to control the wake up rate of standby nodes in a multi-hop communication system. An access point collects, processes, and refines statistical information regarding one or more system parameters; determines a wake up rate based on the statistical information and one or more historical information; and transmits the wake up rate to nodes in its coverage area. A node receives the wake up rate; and periodically changes from a sleep state to a wake up state at the wake up rate to support routing functions for providing multi-hop communication to the one or more access points.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: August 14, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Benedito J. Fonseca, Jr., Jeffrey D. Bonta
  • Patent number: 8238871
    Abstract: Techniques for use in a mobile device involve detecting a temperature condition at said device and, in response, operating in a limited communication state for which only emergency communication is permitted. When the mobile device receives a user-initiated communication request, the mobile device inhibits non-emergency communication but permits emergency communication despite the existence of said temperature condition.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: August 7, 2012
    Assignee: Research In Motion Limited
    Inventors: Xin Jin, Muhammad Khaledul Islam
  • Patent number: 8233440
    Abstract: A method and an apparatus for determining transmission power are disclosed. A gain factor of an E-DPDCH in a compressed mode is determined according to the number of E-DPDCH used for initial transmission of data; and the transmission power of the E-DPDCH is determined according to the gain factor of the E-DPDCH in compressed mode. As the gain factor of E-DPDCH in compressed mode is determined according to the number of E-DPDCH for initial transmission of data, the gain factor of the E-DPDCH in compressed mode can be determined accurately, and thus the transmit power of the E-DPDCH can be determined accurately according to the gain factor of the E-DPDCH. Therefore, the waste of transmit power of the E-DPDCH is reduced, and thus the system capacity is improved.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: July 31, 2012
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Weixin Wang, Xueli Ma, Zongjie Wang
  • Patent number: 8233439
    Abstract: A method and an apparatus for determining transmit power are disclosed. The method includes: determining an E-DPDCH gain factor in compressed mode according to the number of E-DPDCH required for initial transmission of data; and determining transmit power of E-DPDCH according to the E-DPDCH gain factor in compressed mode. The E-DPDCH gain factor in compressed mode is determined according to the number of E-DPDCH required for initial transmission of data, and therefore, the E-DPDCH gain factor in compressed mode is determined accurately, the transmit power of E-DPDCH is determined accurately according to the E-DPDCH gain factor, the waste of transmit power of E-DPDCH is reduced, and therefore the system capacity is improved.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: July 31, 2012
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Weixin Wang, Xueli Ma, Zongjie Wang
  • Patent number: 8208973
    Abstract: Systems and methods for supporting variable beacon timing for a first wireless device and a second wireless device are provided. An exemplary system may include a number of wireless devices configured to wirelessly communicate with one another. The system includes a beacon-transmitting wireless device and a listening wireless device. The beacon-transmitting wireless device is configured to transmit, during a first operating mode, wireless beacons separated in time by relatively long time intervals. The beacon-transmitting device is also configured to transmit, during a second operating mode, wireless beacons separated in time by relatively short time intervals. The listening wireless device is configured to listen, during the first operating mode, for wireless beacons transmitted by the beacon-transmitting wireless device, and is configured to listen, during the second operating mode, for wireless beacons transmitted by the beacon-transmitting wireless device.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: June 26, 2012
    Assignee: Medtronic Minimed, Inc.
    Inventor: Kaezad J. Mehta