WO1998027766A2 - Verfahren und vorrichtung zur reduktion des stromverbrauchs in mobilen multimode-kommunikationsendgeräten - Google Patents
Verfahren und vorrichtung zur reduktion des stromverbrauchs in mobilen multimode-kommunikationsendgeräten Download PDFInfo
- Publication number
- WO1998027766A2 WO1998027766A2 PCT/DE1997/002918 DE9702918W WO9827766A2 WO 1998027766 A2 WO1998027766 A2 WO 1998027766A2 DE 9702918 W DE9702918 W DE 9702918W WO 9827766 A2 WO9827766 A2 WO 9827766A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- communication networks
- networks
- communication
- available
- different
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
- H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
-
- 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
Definitions
- the information about which communication networks are available or not available is signaled by the available communication networks.
- FIG. 4 shows in schematic form an advantageous embodiment of the device according to the invention.
- the invention is described in more detail below on the basis of preferred exemplary embodiments and with the aid of the figures.
- FIG. 1 shows two different communication networks (GSM network, DECT network), both of which are available in some areas (cell3) and only the GSM communication network is available in other areas (cell1, cell2). If a mobile dual-mode communication terminal is now to be accessible in both communication networks, a constant search (scanning) for any available networks is necessary. To make this possible, several hardware components of the dual-mode
- the method according to the invention now provides that the dual-mode communication terminal uses information about the current availability of the two communication networks in order to vary the frequency of the above-mentioned search processes. Since the power consumption depends crucially on the frequency of these searches, reducing the number of searches can also reduce the power consumption.
- the GSM network signals information in each cell about how well this cell is covered with DECT picocells.
- the frequency of the searches is adapted to this degree of coverage.
- the degree of coverage can fluctuate between two extreme cases: if there is no DECT system in the entire GSM cell, the search for DECT networks can be omitted completely, if the entire GSM cell is covered with DECT picocells, the frequency of the search processes should be a maximum , technically required search rate for constant availability.
- mobile dual-mode communication terminals determine the degree of coverage of the individual GSM cells with DECT picocells themselves by evaluating the results of the search processes and store this degree of coverage of the individual GSM cells.
- a further embodiment of the invention assumes that the different communication networks use different transmission methods and / or transmission standards that require different hardware components.
- FDMA frequency division multiple access
- Accessibility via different communication networks with different multiple access methods presupposes that some hardware components corresponding to the different multiple access methods have to be available in multiple versions.
- This can again be achieved by evaluating information about which communication networks are available with which multiple access methods and using them to adjust the frequency of searches. This information can be signaled by the available communication networks or determined in a self-learning process as described above.
- communication networks are also conceivable in connection with the invention, whose signal transmission takes place in different frequency ranges.
- An embodiment according to the invention which is based on this requirement, is based on the following special example of two communication networks (KN1, KN2), which have different frequency ranges (F l and F2) use briefly.
- KN1, KN2 two communication networks
- F l and F2 frequency ranges
- h s (KN21, KN22, KN23) both, and in the other areas only KNL are available from these two communication networks in some Bereic.
- a mobile dual-mode (dual-band) communication terminal now has to constantly search (possibly scan) for existing networks in order to be reachable.
- a mobile communication terminal (MKE) corresponding to the invention is provided with HF modules and the baseband modules, which enable communication via several different communication networks (KN1, KN2). This means that several of these hardware components of a multimode communication terminal are available in different and thus multiple versions in accordance with the requirements of the different communication networks. Furthermore, the device has RF modules and baseband modules for searching for currently available communication networks.
- FIG. 4 shows a further development of the mobile multimode communication terminal according to the invention, which also contains a processor for evaluating search processes and their results and memory for storing these results.
- a processor for adjusting the time intervals of the searches for communication networks are provided depending on the local area in which the communication terminal is located. For this purpose, for example, each cell or each area can be identified with an identity number ID and each communication network with an identification number K. The result of the search for specific communication networks in specific cells or areas is then assigned to the associated identity number ID and identifier K and recorded in a storage device. Before each new search, a check is first made in this memory of how promising a search for a specific communication network K in this cell or this area ID is and the search frequency is adjusted accordingly.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97954693A EP0947117B1 (de) | 1996-12-19 | 1997-12-15 | Verfahren und vorrichtung zur reduktion des stromverbrauchs in mobilen multimode-kommunikationsendgeräten |
DE59711961T DE59711961D1 (de) | 1996-12-19 | 1997-12-15 | Verfahren und vorrichtung zur reduktion des stromverbrauchs in mobilen multimode-kommunikationsendgeräten |
US09/336,955 US6400961B1 (en) | 1996-12-19 | 1999-06-21 | Method and apparatus for reducing the power consumption of mobile multimode communication terminals |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19653106.3 | 1996-12-19 | ||
DE19653106 | 1996-12-19 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/336,955 Continuation US6400961B1 (en) | 1996-12-19 | 1999-06-21 | Method and apparatus for reducing the power consumption of mobile multimode communication terminals |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998027766A2 true WO1998027766A2 (de) | 1998-06-25 |
WO1998027766A3 WO1998027766A3 (de) | 1998-12-03 |
Family
ID=7815420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1997/002918 WO1998027766A2 (de) | 1996-12-19 | 1997-12-15 | Verfahren und vorrichtung zur reduktion des stromverbrauchs in mobilen multimode-kommunikationsendgeräten |
Country Status (5)
Country | Link |
---|---|
US (1) | US6400961B1 (de) |
EP (1) | EP0947117B1 (de) |
CN (1) | CN1115912C (de) |
DE (1) | DE59711961D1 (de) |
WO (1) | WO1998027766A2 (de) |
Cited By (12)
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EP0858237A2 (de) * | 1997-02-05 | 1998-08-12 | Nokia Mobile Phones Ltd. | Intelligente Netzwerksuche für ein Multimoden-Telefon |
FR2802050A1 (fr) * | 1999-12-01 | 2001-06-08 | Sagem | Dialogue entre deux controleurs notamment dans un terminal radiotelephonique bimode dect/gsm |
WO2002060205A2 (en) * | 2001-01-26 | 2002-08-01 | Ericsson Inc. | Method for mating a mobile terminal with a cordless phone system |
WO2003094559A3 (en) * | 2002-05-04 | 2004-02-05 | Motorola Inc | A wireless communication system a wireless communication device and method of monitoring therefor |
WO2004047476A1 (en) * | 2002-11-20 | 2004-06-03 | International Business Machines Corporation | Managing network resources for wireless communication |
EP1942688A1 (de) * | 2007-01-02 | 2008-07-09 | NEC Electronics Corporation | Energiesparmodus in einem zweimoden Funkendgerät |
WO2009000298A1 (en) * | 2007-06-26 | 2008-12-31 | Nec Europe Ltd. | Method for optimizing the scanning process of a mobile terminal |
WO2009146435A1 (en) | 2008-05-30 | 2009-12-03 | Qualcomm Incorporated | Method and apparatus for searching for signals in a wireless communication system |
WO2011018247A1 (en) * | 2009-08-13 | 2011-02-17 | Sony Ericsson Mobile Communications Ab | Background scan for identifying radio access possibilities, mobile terminal and computer program |
US8155699B2 (en) | 2007-08-27 | 2012-04-10 | Canon Kabushiki Kaisha | Communication apparatus |
WO2013058914A1 (en) * | 2011-09-16 | 2013-04-25 | Qualcomm Incorporated | Systems and methods for network quality estimation, connectivity detection, and load management |
US9736045B2 (en) | 2011-09-16 | 2017-08-15 | Qualcomm Incorporated | Systems and methods for network quality estimation, connectivity detection, and load management |
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US7733831B2 (en) * | 2004-08-23 | 2010-06-08 | Alcatel-Lucent Usa Inc. | Detecting a wireless network air interface |
US10009814B1 (en) | 2004-09-03 | 2018-06-26 | Sprint Spectrum L.P. | Multi-mode mobile station and method of changing its network connectivity using a network acknowledgement |
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Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0858237A3 (de) * | 1997-02-05 | 1999-09-22 | Nokia Mobile Phones Ltd. | Intelligente Netzwerksuche für ein Multimoden-Telefon |
US6226527B1 (en) | 1997-02-05 | 2001-05-01 | Nokia Mobile Phones Limited | Intelligent network searching for a multi mode phone |
EP0858237A2 (de) * | 1997-02-05 | 1998-08-12 | Nokia Mobile Phones Ltd. | Intelligente Netzwerksuche für ein Multimoden-Telefon |
FR2802050A1 (fr) * | 1999-12-01 | 2001-06-08 | Sagem | Dialogue entre deux controleurs notamment dans un terminal radiotelephonique bimode dect/gsm |
EP1107625A1 (de) * | 1999-12-01 | 2001-06-13 | Sagem Sa | Dialog zwischen zwei Steuereinheiten, insbesondere in einem Dual-Mode DECT/GSM Mobilfunk-Endgerät |
WO2002060205A2 (en) * | 2001-01-26 | 2002-08-01 | Ericsson Inc. | Method for mating a mobile terminal with a cordless phone system |
WO2002060205A3 (en) * | 2001-01-26 | 2002-11-14 | Ericsson Inc | Method for mating a mobile terminal with a cordless phone system |
US6885869B2 (en) | 2001-01-26 | 2005-04-26 | Ericsson Inc. | Method for mating a mobile terminal with a cordless phone system |
WO2003094559A3 (en) * | 2002-05-04 | 2004-02-05 | Motorola Inc | A wireless communication system a wireless communication device and method of monitoring therefor |
US8452286B2 (en) | 2002-11-20 | 2013-05-28 | International Business Machines Corporation | Wireless communication |
WO2004047476A1 (en) * | 2002-11-20 | 2004-06-03 | International Business Machines Corporation | Managing network resources for wireless communication |
EP1942688A1 (de) * | 2007-01-02 | 2008-07-09 | NEC Electronics Corporation | Energiesparmodus in einem zweimoden Funkendgerät |
US8407174B2 (en) | 2007-06-26 | 2013-03-26 | Nec Europe Ltd. | Method for optimizing the scanning process of a mobile terminal |
WO2009000298A1 (en) * | 2007-06-26 | 2008-12-31 | Nec Europe Ltd. | Method for optimizing the scanning process of a mobile terminal |
US8155699B2 (en) | 2007-08-27 | 2012-04-10 | Canon Kabushiki Kaisha | Communication apparatus |
WO2009146435A1 (en) | 2008-05-30 | 2009-12-03 | Qualcomm Incorporated | Method and apparatus for searching for signals in a wireless communication system |
US8175567B2 (en) | 2008-05-30 | 2012-05-08 | Qualcomm Incorporated | Method and apparatus for searching for signals in a wireless communication system |
WO2011018247A1 (en) * | 2009-08-13 | 2011-02-17 | Sony Ericsson Mobile Communications Ab | Background scan for identifying radio access possibilities, mobile terminal and computer program |
WO2013058914A1 (en) * | 2011-09-16 | 2013-04-25 | Qualcomm Incorporated | Systems and methods for network quality estimation, connectivity detection, and load management |
US9736045B2 (en) | 2011-09-16 | 2017-08-15 | Qualcomm Incorporated | Systems and methods for network quality estimation, connectivity detection, and load management |
Also Published As
Publication number | Publication date |
---|---|
DE59711961D1 (de) | 2004-10-28 |
WO1998027766A3 (de) | 1998-12-03 |
EP0947117B1 (de) | 2004-09-22 |
CN1115912C (zh) | 2003-07-23 |
US6400961B1 (en) | 2002-06-04 |
CN1241344A (zh) | 2000-01-12 |
EP0947117A2 (de) | 1999-10-06 |
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