CA2608989A1 - A vehicle locating unit with improved power management method - Google Patents
A vehicle locating unit with improved power management method Download PDFInfo
- Publication number
- CA2608989A1 CA2608989A1 CA002608989A CA2608989A CA2608989A1 CA 2608989 A1 CA2608989 A1 CA 2608989A1 CA 002608989 A CA002608989 A CA 002608989A CA 2608989 A CA2608989 A CA 2608989A CA 2608989 A1 CA2608989 A1 CA 2608989A1
- Authority
- CA
- Canada
- Prior art keywords
- signal
- communication
- communication source
- wake
- locating unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
- G01S13/825—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted with exchange of information between interrogator and responder
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0245—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal according to signal strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
A vehicle locating unit with improved power management. A receiver receives a signal from a network of communication sources. A signal strength monitoring subsystem determines which of the communication sources are transmitting the strongest signals. A power management subsystem is responsive to the signal strength monitoring subsystem and is configured to alternatively enter sleep and wake-up modes, synchronize the wake-up mode to the communication source transmitting the strongest signal, and test the signal strength of at least one additional communication source according to a predefined sequence.
Claims (13)
1. A vehicle locating unit with improved power management, the vehicle locating unit comprising:
a receiver which receives a signal from a network of communication sources;
a signal strength monitoring subsystem for determining which of the communication sources are transmitting the strongest signals; and a power management subsystem responsive to the signal strength monitoring subsystem and configured to:
alternatively enter sleep and wake-up modes, synchronize the wake-up mode to the communication source transmitting the strongest signal, and test the signal strength of at least one additional communication source according to a predefined sequence.
a receiver which receives a signal from a network of communication sources;
a signal strength monitoring subsystem for determining which of the communication sources are transmitting the strongest signals; and a power management subsystem responsive to the signal strength monitoring subsystem and configured to:
alternatively enter sleep and wake-up modes, synchronize the wake-up mode to the communication source transmitting the strongest signal, and test the signal strength of at least one additional communication source according to a predefined sequence.
2. The vehicle locating unit of claim 1 in which the power management subsystem is configured to:
test and store the identity of two communication sources with the two strongest signals, switch to synchronization with any communication source having a signal stronger than the strongest signal of the two stored communication sources, and store the identity of any communication source with a signal stronger than the signal of any previously stored communication source.
test and store the identity of two communication sources with the two strongest signals, switch to synchronization with any communication source having a signal stronger than the strongest signal of the two stored communication sources, and store the identity of any communication source with a signal stronger than the signal of any previously stored communication source.
3. The vehicle locating unit of claim 1 in which there are n communication sources each transmitting a signal at a different time every n seconds.
4. The vehicle locating unit of claim 3 in which n is 8.
5. The vehicle locating unit of claim 1 in which the power management system is configured to include a start-up mode wherein all communication sources are tested.
6. The vehicle locating unit of claim 1 in which the power management subsystem is implemented in a microcontroller.
7. The vehicle locating unit of claim 1 in which the power management subsystem is configured to power down the receiver during the sleep mode and to power up the receiver during the wake-up mode.
8. The vehicle locating unit of claim 1 in which the signal strength monitoring subsystem includes a demodulation circuit.
9. The vehicle locating unit of claim 8 in which the demodulation circuit is a component of the receiver.
10. A method of checking messages from a network of communication sources, the method comprising:
initially testing the signal strength of a plurality of communication sources;
storing the identity of the communication sources with the two strongest signals;
alternatively entering a sleep mode and a wake-up mode, the wake-up mode synchronized to the communication source with the strongest signal;
testing the signal strength of one additional communication source;
switching synchronization to the additional communication source if said source presents a signal stronger than the signal of a stored communication source with the strongest signal; and replacing the identity of any stored communication source if an additional communication source tested in sequence presents a signal stronger than the signal of said stored communication source.
initially testing the signal strength of a plurality of communication sources;
storing the identity of the communication sources with the two strongest signals;
alternatively entering a sleep mode and a wake-up mode, the wake-up mode synchronized to the communication source with the strongest signal;
testing the signal strength of one additional communication source;
switching synchronization to the additional communication source if said source presents a signal stronger than the signal of a stored communication source with the strongest signal; and replacing the identity of any stored communication source if an additional communication source tested in sequence presents a signal stronger than the signal of said stored communication source.
11. A system comprising:
a receiver which receives a signal from a network of communication sources;
a signal strength monitoring subsystem for determining which of the communication sources are transmitting the strongest signals; and a power management subsystem responsive to the signal strength monitoring subsystem and configured to:
alternatively enter sleep and wake-up modes, synchronize the wake-up mode to the communication source transmitting the strongest signal, and test the signal strength of at least one additional communication source to ensure the wake-up mode is synchronized to the communication source transmitting the strongest signal.
a receiver which receives a signal from a network of communication sources;
a signal strength monitoring subsystem for determining which of the communication sources are transmitting the strongest signals; and a power management subsystem responsive to the signal strength monitoring subsystem and configured to:
alternatively enter sleep and wake-up modes, synchronize the wake-up mode to the communication source transmitting the strongest signal, and test the signal strength of at least one additional communication source to ensure the wake-up mode is synchronized to the communication source transmitting the strongest signal.
12. A vehicle locating unit with improved power management, the vehicle locating unit comprising:
a receiver which receives a signal from a network of communication sources;
a signal strength monitoring subsystem for determining which of the communication sources are transmitting the strongest signals; and a power management subsystem responsive to the signal strength monitoring subsystem and configured to:
test and store the identity of two communication sources with the two strongest signals, alternatively enter sleep and wake-up modes, the wake-up mode synchronized with the communication source transmitting the strongest signal, test the signal strength of at least one additional communication source according to a predefined sequence, switch to synchronization with any communication source having a signal stronger than the strongest signal of the two stored communication sources, and store the identity of any communication source with a signal stronger than the signal of any previously stored communication source.
a receiver which receives a signal from a network of communication sources;
a signal strength monitoring subsystem for determining which of the communication sources are transmitting the strongest signals; and a power management subsystem responsive to the signal strength monitoring subsystem and configured to:
test and store the identity of two communication sources with the two strongest signals, alternatively enter sleep and wake-up modes, the wake-up mode synchronized with the communication source transmitting the strongest signal, test the signal strength of at least one additional communication source according to a predefined sequence, switch to synchronization with any communication source having a signal stronger than the strongest signal of the two stored communication sources, and store the identity of any communication source with a signal stronger than the signal of any previously stored communication source.
13. A vehicle locating unit power management system comprising:
a memory; and a controller configured to:
alternatively output sleep and wake-up mode signals, store in said memory the identity of at least a first communication source presenting the strongest signal, test the signal strength of at least one different communication source during the wake-up mode, synchronize the wake-up mode to the communication source identified in said memory, and update the memory to store the identity of a different communication source presenting a signal stronger than the first communication source.
a memory; and a controller configured to:
alternatively output sleep and wake-up mode signals, store in said memory the identity of at least a first communication source presenting the strongest signal, test the signal strength of at least one different communication source during the wake-up mode, synchronize the wake-up mode to the communication source identified in said memory, and update the memory to store the identity of a different communication source presenting a signal stronger than the first communication source.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/131,847 US7593711B2 (en) | 2005-05-18 | 2005-05-18 | Vehicle locating unit with improved power management method |
| US11/131,847 | 2005-05-18 | ||
| PCT/US2006/018963 WO2006124925A2 (en) | 2005-05-18 | 2006-05-17 | A vehicle locating unit with improved power management method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2608989A1 true CA2608989A1 (en) | 2006-11-23 |
| CA2608989C CA2608989C (en) | 2012-05-22 |
Family
ID=37432054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2608989A Expired - Fee Related CA2608989C (en) | 2005-05-18 | 2006-05-17 | A vehicle locating unit with improved power management method |
Country Status (26)
| Country | Link |
|---|---|
| US (2) | US7593711B2 (en) |
| EP (1) | EP1882310B1 (en) |
| JP (3) | JP2008546247A (en) |
| KR (1) | KR100927921B1 (en) |
| CN (1) | CN101507240B (en) |
| AP (1) | AP2007004269A0 (en) |
| AR (1) | AR053288A1 (en) |
| AU (1) | AU2006247296C1 (en) |
| BR (1) | BRPI0610711B1 (en) |
| CA (1) | CA2608989C (en) |
| CL (1) | CL2009001390A1 (en) |
| DK (1) | DK1882310T3 (en) |
| EC (1) | ECSP077914A (en) |
| ES (1) | ES2556619T3 (en) |
| HK (1) | HK1132603A1 (en) |
| HU (1) | HUE026325T2 (en) |
| MX (1) | MX2007014457A (en) |
| MY (1) | MY142015A (en) |
| NO (1) | NO20076068L (en) |
| NZ (1) | NZ563505A (en) |
| PE (2) | PE20070045A1 (en) |
| PL (1) | PL1882310T3 (en) |
| PT (1) | PT1882310E (en) |
| RU (1) | RU2402161C2 (en) |
| WO (1) | WO2006124925A2 (en) |
| ZA (1) | ZA200709888B (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7593711B2 (en) * | 2005-05-18 | 2009-09-22 | Lojack Operating Company, Lp | Vehicle locating unit with improved power management method |
| US7725093B2 (en) | 2006-03-29 | 2010-05-25 | Intel Corporation | Method and apparatus for a power-efficient framework to maintain data synchronization of a mobile personal computer to simulate a connected scenario |
| US20090022138A1 (en) * | 2006-11-20 | 2009-01-22 | Visible Assets Inc. | Multiplexing protocol for large, high security areas with 3d localization |
| JP2008294610A (en) * | 2007-05-23 | 2008-12-04 | Sony Corp | Communicating system and communication device |
| US8115656B2 (en) * | 2008-02-25 | 2012-02-14 | Recovery Systems Holdings, Llc | Vehicle security and monitoring system |
| US8229518B2 (en) * | 2009-10-21 | 2012-07-24 | Lojack Operating Company, Lp | Duty cycle estimation system and method |
| US8618957B2 (en) | 2009-10-23 | 2013-12-31 | Lojack Corporation | Power management system and method for vehicle locating unit |
| US8630605B2 (en) * | 2009-10-23 | 2014-01-14 | Lojack Corporation | Synchronization system and method for achieving low power battery operation of a vehicle locating unit in a stolen vehicle recovery system which receives periodic transmissions |
| PT2463682E (en) | 2010-12-07 | 2013-05-13 | Kapsch Trafficcom Ag | Method for determining the distance of a vehicle to a wireless beacon and wireless beacon for same |
| CN102157055B (en) * | 2011-03-18 | 2013-07-31 | 成都西谷曙光数字技术有限公司 | Wireless telemetering telecontrol system and method with ultra-low power consumption |
| US8712364B2 (en) | 2012-09-18 | 2014-04-29 | Delphi Technologies, Inc. | In-vehicle communication system and method of operation |
| US20150002271A1 (en) * | 2013-06-27 | 2015-01-01 | Qualcomm Incorporated | Variable listen duration and/or synchronized wake-up of asset tags |
| US9168835B2 (en) * | 2013-11-27 | 2015-10-27 | GM Global Technology Operations LLC | Systems and methods for auxiliary power outlet control |
| JP6241895B2 (en) * | 2015-10-28 | 2017-12-06 | 公立大学法人岩手県立大学 | Position estimation system, position estimation method, program |
| US10149269B2 (en) | 2016-08-08 | 2018-12-04 | Blackberry Limited | Mobile transceiver having route monitoring and method of operation |
| US10477505B2 (en) | 2016-08-08 | 2019-11-12 | Blackberry Limited | Mobile transceiver for asset tracking having a power saving scheme for network access |
| US10461868B2 (en) | 2017-07-05 | 2019-10-29 | Calamp Wireless Networks Corporation | Systems and methods for reducing undesirable behaviors in RF communications |
| US10243766B2 (en) | 2017-07-05 | 2019-03-26 | Lojack Corporation | Systems and methods for determining and compensating for offsets in RF communications |
| US10367457B2 (en) | 2017-07-06 | 2019-07-30 | Calamp Wireless Networks Corporation | Single stage ramped power amplifiers |
| CN107580363B (en) * | 2017-09-18 | 2020-09-18 | 迈锐数据（北京）有限公司 | Data transmission method, device and system |
| GB201721436D0 (en) * | 2017-12-20 | 2018-01-31 | Nordic Semiconductor Asa | Radio communications |
Family Cites Families (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4177466A (en) * | 1977-11-16 | 1979-12-04 | Lo-Jack Corporation | Auto theft detection system |
| NL8601063A (en) * | 1986-04-25 | 1987-11-16 | Philips Nv | DISPLAY FOR COLOR RENDERING. |
| US4818988A (en) * | 1988-01-04 | 1989-04-04 | Gte Laboratories Incorporated | Crosspoint switching array |
| US5463675A (en) * | 1991-06-17 | 1995-10-31 | At&T Ipm Corp. | Extended home indentification being used by the same service provider as a home identification in a service area other than the home service area for cellular radio telephone systems |
| US5704008A (en) * | 1993-12-13 | 1997-12-30 | Lojack Corporation | Method of and apparatus for motor vehicle security assurance employing voice recognition control of vehicle operation |
| DE69519484T2 (en) * | 1994-01-11 | 2001-04-05 | Ericsson Inc | Position recording for cellular communication arrangements with satellites |
| US5613204A (en) * | 1994-12-22 | 1997-03-18 | Bell Atlantic Mobile Systems, Inc. | Beacon system for roaming cellular stations |
| ZA959074B (en) * | 1995-04-12 | 1996-05-22 | Lo Jack Corp | Vehicle tracking transponder system and transponding method |
| US5920821A (en) * | 1995-12-04 | 1999-07-06 | Bell Atlantic Network Services, Inc. | Use of cellular digital packet data (CDPD) communications to convey system identification list data to roaming cellular subscriber stations |
| FI103081B1 (en) * | 1996-02-23 | 1999-04-15 | Nokia Telecommunications Oy | Handover in a mobile communication system |
| US6236674B1 (en) * | 1996-02-23 | 2001-05-22 | Teletransactions, Inc. | Transceiver control with sleep mode operation |
| JPH09307942A (en) * | 1996-05-14 | 1997-11-28 | Matsushita Electric Ind Co Ltd | Mobile station equipment |
| GB9611425D0 (en) | 1996-05-31 | 1996-08-07 | Tracker Network Uk Ltd | Digital communications |
| JPH114470A (en) * | 1997-06-13 | 1999-01-06 | Nippon Denki Ido Tsushin Kk | Communication system and communication method for mobile terminal |
| JP3475065B2 (en) * | 1997-12-25 | 2003-12-08 | 京セラ株式会社 | Outgoing / incoming call system with superframe synchronization |
| US6229988B1 (en) | 1998-05-20 | 2001-05-08 | Lojack Corporation | Method of and apparatus for battery and similar power source conservation in periodically operable portable and related radio receivers and the like |
| US6438375B1 (en) * | 1999-03-04 | 2002-08-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Coordinating different types of messages sent to mobile radios in a mobile communications system |
| US6505042B1 (en) * | 1999-06-10 | 2003-01-07 | Qualcomm, Incorporated | System and method for establishing a communication link between a mobile station and a base station controller |
| US6606561B2 (en) * | 2000-05-17 | 2003-08-12 | Omega Patents, L.L.C. | Vehicle tracker including input/output features and related methods |
| US6509868B2 (en) * | 2000-05-17 | 2003-01-21 | Omega Patents, L.L.C. | Vehicle tracker with user notifications and associated methods |
| DE50104001D1 (en) * | 2000-05-26 | 2004-11-11 | Siemens Ag | METHOD FOR DETECTING THE POSITION OF A PORTABLE TRANSPONDER AND ANTI-THEFT PROTECTION SYSTEM |
| US6625467B2 (en) * | 2000-07-13 | 2003-09-23 | Qualcomm, Incorporated | Method and apparatus for performing idle mode reacquisition and handoff in an asynchronous communication system |
| SE519001C2 (en) * | 2000-08-29 | 2002-12-17 | Volvo Teknisk Utveckling Ab | Method and objects for energy-saving operation of a communication system |
| JP2002171550A (en) * | 2000-11-30 | 2002-06-14 | Aiwa Co Ltd | Communication terminal |
| JP4240927B2 (en) * | 2001-09-20 | 2009-03-18 | 株式会社デンソー | Mobile communication device |
| US6665613B2 (en) | 2001-09-25 | 2003-12-16 | Lojack Corporation | Method of and apparatus for dynamically GoeFencing movable vehicle and other equipment and the like |
| US7133702B2 (en) * | 2002-08-27 | 2006-11-07 | Qualcomm Incorporated | Idle mode cell reacquisition and reselection |
| CN100379312C (en) * | 2002-08-27 | 2008-04-02 | 高通股份有限公司 | Idle mode cell reacquisition and reselection |
| JP2004114902A (en) * | 2002-09-27 | 2004-04-15 | Matsushita Electric Ind Co Ltd | In-vehicle communication system |
| JP2004135072A (en) * | 2002-10-10 | 2004-04-30 | Mitsubishi Electric Corp | Emergency call device |
| JP3795868B2 (en) | 2003-02-05 | 2006-07-12 | 株式会社東芝 | Mobile communication terminal device and its control module and control program |
| US7768234B2 (en) * | 2004-02-28 | 2010-08-03 | Janik Craig M | System and method for automatically synchronizing and acquiring content for battery powered devices |
| US7593711B2 (en) * | 2005-05-18 | 2009-09-22 | Lojack Operating Company, Lp | Vehicle locating unit with improved power management method |
| US9113464B2 (en) * | 2006-01-06 | 2015-08-18 | Proxense, Llc | Dynamic cell size variation via wireless link parameter adjustment |
-
2005
- 2005-05-18 US US11/131,847 patent/US7593711B2/en active Active
-
2006
- 2006-05-15 MY MYPI20062218A patent/MY142015A/en unknown
- 2006-05-17 RU RU2007146617/09A patent/RU2402161C2/en not_active IP Right Cessation
- 2006-05-17 JP JP2008512446A patent/JP2008546247A/en not_active Withdrawn
- 2006-05-17 CN CN2006800214574A patent/CN101507240B/en not_active Expired - Fee Related
- 2006-05-17 KR KR1020077029516A patent/KR100927921B1/en not_active IP Right Cessation
- 2006-05-17 CA CA2608989A patent/CA2608989C/en not_active Expired - Fee Related
- 2006-05-17 PL PL06770448T patent/PL1882310T3/en unknown
- 2006-05-17 EP EP06770448.6A patent/EP1882310B1/en active Active
- 2006-05-17 DK DK06770448.6T patent/DK1882310T3/en active
- 2006-05-17 ES ES06770448.6T patent/ES2556619T3/en active Active
- 2006-05-17 BR BRPI0610711-7A patent/BRPI0610711B1/en active IP Right Grant
- 2006-05-17 PT PT67704486T patent/PT1882310E/en unknown
- 2006-05-17 AP AP2007004269A patent/AP2007004269A0/en unknown
- 2006-05-17 MX MX2007014457A patent/MX2007014457A/en active IP Right Grant
- 2006-05-17 NZ NZ563505A patent/NZ563505A/en not_active IP Right Cessation
- 2006-05-17 AU AU2006247296A patent/AU2006247296C1/en not_active Ceased
- 2006-05-17 HU HUE06770448A patent/HUE026325T2/en unknown
- 2006-05-17 WO PCT/US2006/018963 patent/WO2006124925A2/en active Application Filing
- 2006-05-18 AR ARP060102027A patent/AR053288A1/en not_active Application Discontinuation
- 2006-05-18 PE PE2006000521A patent/PE20070045A1/en not_active Application Discontinuation
- 2006-05-18 PE PE2011000033A patent/PE20110373A1/en not_active Application Discontinuation
-
2007
- 2007-11-15 ZA ZA200709888A patent/ZA200709888B/en unknown
- 2007-11-19 EC EC2007007914A patent/ECSP077914A/en unknown
- 2007-11-26 NO NO20076068A patent/NO20076068L/en not_active Application Discontinuation
-
2009
- 2009-06-10 CL CL2009001390A patent/CL2009001390A1/en unknown
- 2009-08-12 US US12/462,949 patent/US7853218B2/en active Active
- 2009-10-29 HK HK09110067.8A patent/HK1132603A1/en not_active IP Right Cessation
-
2010
- 2010-11-22 JP JP2010260148A patent/JP5436395B2/en not_active Expired - Fee Related
-
2013
- 2013-10-18 JP JP2013217497A patent/JP5661164B2/en not_active Expired - Fee Related
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2608989A1 (en) | A vehicle locating unit with improved power management method | |
| CN101317167B (en) | Bus station and system and method of maintaining synchronizing of a bus station | |
| CN101971642A (en) | Communication system | |
| US20170294955A1 (en) | Radio control device and radio relay device | |
| CN102378286B (en) | Frequency spectrum switching method and system for centralized networks, user terminal and base station | |
| US20210410222A1 (en) | Battery monitoring apparatus | |
| CN104735750A (en) | Cell searching method and terminal | |
| CN101848193A (en) | Method, system and network node for network synchronization | |
| CN105588989B (en) | Single board testing method and device | |
| CN113557437A (en) | Battery monitoring device | |
| US10225702B2 (en) | Communication system, and hot-wire sensor terminal used therein | |
| US8605918B2 (en) | Power saving system and method for loudspeaker | |
| KR100735957B1 (en) | Device and method for controlling the energy consumption of a umts/gsm/edge combined radio station | |
| CN101401325A (en) | Receiving device and electronic equipment using same | |
| CN112969219A (en) | Network searching processing method, device, equipment, storage medium and program product | |
| KR20220077532A (en) | System for identifying controller causing vehicle discharge | |
| CN110196558B (en) | Electronic equipment monitoring method and device and electronic equipment monitoring system | |
| TH84149A (en) | Vehicle positioning unit with improved power handling methods | |
| TH33772B (en) | Vehicle positioning unit with improved power handling methods | |
| KR100520174B1 (en) | Channel connection method with network in European portable terminal | |
| CN117560749A (en) | Determination method of synchronous source of wake-up signal, terminal and network side equipment | |
| CN117750485A (en) | Method, terminal and network side equipment for acquiring synchronous information | |
| CN105682249A (en) | Method and device for establishing connection based on beacon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20220301 |
|
| MKLA | Lapsed |
Effective date: 20200831 |