CN1229328A - Radio phone unit and radio phone base station switching method - Google Patents

Radio phone unit and radio phone base station switching method Download PDF

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Publication number
CN1229328A
CN1229328A CN99101336A CN99101336A CN1229328A CN 1229328 A CN1229328 A CN 1229328A CN 99101336 A CN99101336 A CN 99101336A CN 99101336 A CN99101336 A CN 99101336A CN 1229328 A CN1229328 A CN 1229328A
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CN
China
Prior art keywords
base station
wireless base
signal strength
signal
signal intensity
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Pending
Application number
CN99101336A
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Chinese (zh)
Inventor
田中彻
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NEC Corp
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NEC Corp
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Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Publication of CN1229328A publication Critical patent/CN1229328A/en
Pending legal-status Critical Current

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    • 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
    • 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
    • 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

The invention relates to a mobile phone unit in which a control section compares the signal strength of a local station with a threshold value and, when it is not lower, continues communication. When the signal strength of the local station is determined to be lower than the threshold, a detecting section detects the signal strengths of other base stations and selects the one with the highest strength. Moreover, the comparison means compares the signal strength of the selected base station with that of the local station and, when it exceeds that of the local station, switches connection from the local station to the selected station. Consequently, when the phone unit exists in a zone of adequate power, no base station detecting operation is executed and the power associated with the detecting operation is conserved.

Description

Radio phone unit and radio phone base station switching method
The present invention relates to the improvement of the handover operation when being changed to other wireless base station from the signal strength weakening of the wireless base station of local station and connection, be specifically related to be intended to reduce mobile unit electric power consumption radio phone unit and switch the method for wireless base station.
In order to guarantee best telephone relation during the moving of mobile unit, radio phone unit selects one can obtain the wireless base station that strong cohesiveness is received intensity, connects wireless base station and mobile unit, allows their communication.
Therefore, even during telephone relation and the waiting time of conversing, except connected wireless base station (being called local station), mobile unit also receives from the signal that is positioned at local station wireless base station on every side, the signal strength signal intensity of wireless base station around detecting is relatively by the signal strength signal intensity of the signal strength signal intensity of the local station of wireless connections and other wireless base station.When being better than the signal strength signal intensity of local station from other signal of base station intensity, mobile radio station differentiates that it has entered the zone of adjacent wireless base stations, changes the connection to the wireless base station with strongest signal strength, and communicates.
Yet, in traditional radio phone unit, detecting owing to always be moved the unit as mentioned above from other received signal intensity around the wireless base station, the electric power consumption that is used for detecting operation is big, and this result causes the battery reduction of continuous service time.
Therefore, as mentioned above, the signal strength signal intensity of other wireless base station is detected and irrelevant with the signal strength signal intensity of local station.Even the detected signal strength weakening of wireless base station, channel is not switched, and making wastes detecting operation.
The purpose of this invention is to provide a radio phone unit, in mobile unit, improved the operation that changes the wireless base station, change the required electric power consumption in wireless base station and be lowered, prevented the battery waste, and the wireless base station change method that is used for radio phone unit.
According to the present invention, in order to address the above problem following structure radio phone unit and the wireless base station change method that is used for radio phone unit.
Just, mobile unit comprises checkout equipment, is used for detecting from connected wireless base station, the unit signal strength signal intensity of (after this claiming local station); Memory device is used for the threshold value of storage signal intensity; Second checkout equipment is used to detect from the signal strength signal intensity around other wireless base station of local station; And control appliance, up to the receiving intensity of local station be reduced to be lower than the threshold value of in memory device, storing before, do not carry out detecting, when intensity is equal to or less than threshold value, make the operation of second checkout equipment, the signal strength signal intensity of wireless base station around detecting around the receiving intensity of wireless base station.
When the result is enough to keep a telephone relation when the signal strength signal intensity of local station, do not carry out signal strength detection to other wireless base station that centers on local station, do not waste the electrical power of detection signal strength, can prolong the service time that is installed in the battery on the mobile unit.
When the receiving intensity of local station is lower than the threshold value of storing in the memory device, the signal strength signal intensity of local wireless signal of base station intensity and other wireless base station is compared, only the signal strength signal intensity in other wireless base station is higher than predetermined value of signal strength signal intensity of local station or more for a long time, just with channel-changing to the wireless base station.
Fig. 1 is the block diagram of expression radio phone unit;
Fig. 2 is the block diagram of the control appliance of expression radio phone unit of the present invention; With
Fig. 3 is according to flow chart of the present invention.
Now with accompanying drawings one embodiment of the present of invention.
As shown in Figure 1, radio phone unit is included in regional 3A, the wireless base station 2A that provides among 3B and the 3C, 2B, 2C; Mobile unit 4 is wirelessly connected to wireless base station 2A with mobile unit 4, and one of 2B and 2C are any, allows them to carry out telephone relation.
Fig. 2 represents the block diagram of the control of mobile unit 4.As shown in Figure 2, mobile unit 4 comprises a transmitter-receiver 6; Antenna 8; Checkout equipment 10 is used to detect the signal strength signal intensity of wireless base station 2A; Memory device 12 is used to store a threshold value; Authentication equipment 14 is used to differentiate whether the signal strength signal intensity that is detected by checkout equipment 10 surpasses threshold value; Second checkout equipment 16 is used to detect the signal strength signal intensity of not connected other wireless base station 2B and 2C; Compare facilities 18 is used for the signal strength signal intensity of the signal strength signal intensity of comparison local station and not connected other wireless base station 2B and 2C; Switching device 20 is used to switch wireless base station 2A, 2B, 2C; Control appliance 22 is used for whole control.
Checkout equipment 10 is used at any time or detects the signal strength signal intensity of connected wireless base station (being local station) in each scheduled time, and sends the signal strength signal intensity of detection to control appliance 22.The threshold value of storage is the value that obtains from the lowest signal intensity that can communicate in the memory device 12, and when signal strength signal intensity was lower than threshold value, it was that a connection wishes to be switched to other value around wireless base station 2B or 2C.
Authentication equipment 14 compares the threshold value of storage in the memory device 12 and the signal strength signal intensity that is detected by checkout equipment 10, whether the signal strength signal intensity of differentiating home base stations is equal to or less than threshold value, when the signal strength signal intensity of local station is lower than threshold value, with this true notice control appliance 22.
Other signal strength signal intensity that second checkout equipment 16 detects except that local station around wireless base station 2B and 2C.Provide a checkout equipment to be enough to, other around signal strength signal intensity of wireless base station by switching with detected wireless base station 2A, 2B and 2C and be received.
Compare facilities 18 selects to have the wireless base station 2B or the 2C of maximum signal from other wireless base station that is detected by second checkout equipment 16, and compares wireless base station 2B or the signal strength signal intensity of 2C and the signal strength signal intensity of local station.When the signal strength signal intensity of selected wireless base station 2B or 2C greater than the predetermined value of signal strength signal intensity at local wireless station or when bigger, with this true notice control appliance 22.
The notice that exists as the wireless base station greater than the signal strength signal intensity of local station is sent to control appliance 22 from compare facilities 18, and when control appliance 22 produces switching command, switching device 20 switches, mobile unit 4 is connected to wireless base station (for example, wireless base station 2B) by second checkout equipment, 16 detected maximum signals according to instruction.
The operation of radio phone unit 1 will be described with reference to figure 3.
The first, the wireless base station 2A that mobile unit 4 detects among the regional 3A that comprises mobile unit 4, and be connected to wireless base station 2A (F-1).In mobile unit in 4, though wait for or the telephone relation process in, checkout equipment 10 always detects the signal strength signal intensity of connected wireless base station 2A (F-2).Authentication equipment 14 compare thresholds and signal strength signal intensity (F-3).When the signal strength signal intensity of local station is higher than threshold value, even during wait state or telephone relation, also keep state.
On the other hand, when authentication equipment 14 identification signal intensity are lower than threshold value (F-3), make 16 operations of second checkout equipment, around other wireless base station 2B of mobile unit 4 and the signal detected (F-4) of 2C, detected value is sent to compare facilities 18.Compare facilities 18 selects to have the wireless base station (for example, wireless base station 2B) of maximum signal from the detected signal of wireless base station 2B and 2C.And then the maximum signal quilt of wireless base station and the signal strength signal intensity of the 2A of local station compare, (F-6).When the signal strength signal intensity of other wireless base station 2B greater than predetermined value d of signal strength signal intensity of the 2A of local station or more for a long time, the channel of mobile unit 4 is switched the wireless base station 2B (F-7) that equipment 20 switches to maximum signal.
Therefore, according to radio phone unit 1, because as long as the receiving intensity of the 2A of local station is higher than the threshold value of storage in the memory device 12, just detection ring is not around the signal strength signal intensity of wireless base station 2B and 2C, and the electric power consumption of mobile unit 4 is lowered and can prevents the battery waste.When in fact mobile unit 4 moves etc., the signal intensity attenuation of the 2A of local station connects and is changed to other wireless base station (for example, wireless base station 2B) of maximum signal, and can realize that optimization communicates by letter.
According to first effect of the present invention because until the receiving intensity of home base stations equal Or be lower than before the threshold value, thereby the signal strength signal intensity that does not detect other wireless base station has been saved electric work Rate, and the electric power consumption that detects the signal strength signal intensity of other wireless base station is lowered, thereby Can save battery.
Second effect is, when the receiving intensity of local station is lower than threshold value, as long as it is higher than The signal strength signal intensity of wireless base station does not just change channel, thereby has prevented that channel is switched on every side To the wireless base station that weak signal strength is arranged.
According to the 3rd aspect, even when the receiving intensity of local station is lower than threshold value, as long as The signal strength signal intensity of wireless base station is not higher than local station predetermined value or higher on every side, does not change letter yet The road, thus prevent that channel often is switched to the wireless base station of basic identical signal strength signal intensity.

Claims (6)

1. radio phone unit is used to detect the signal receiving strength from a plurality of wireless base stations, and through a radiolink, carries out comprising according to a wireless base station (back claims local station) of described signal strength signal intensity selection and the communication between the mobile radio station:
Checkout equipment is used to detect the signal strength signal intensity from described wireless base station;
Memory device is used for the threshold value of storage signal intensity; With
Control appliance when the receiving intensity of described signal is equal to or less than described threshold value, is carried out the detecting operation of the signal that is positioned at described local station other wireless base station on every side.
2. according to the radio phone unit of claim 1, wherein when the signal strength signal intensity of local station is equal to or greater than predetermined threshold, described control appliance does not detect other signal strength signal intensity around the wireless base station, and when described signal strength signal intensity is lower than described threshold value, begin to detect described signal around the wireless base station.
3. according to the radio phone unit of claim 1, wherein when the signal strength signal intensity of local station is equal to or less than the threshold value of storage in advance, described control appliance detection ring is around the signal strength signal intensity of the wireless base station of local station, from the signal strength signal intensity that is detected, select to have the wireless base station of maximum signal, the signal strength signal intensity of signal strength signal intensity and local station is compared, when the signal strength signal intensity of described selected wireless base station greater than predetermined value of signal strength signal intensity of local station or more for a long time, select the wireless base station, described mobile unit is connected to described wireless base station.
4. according to the radio phone unit of claim 1, wherein after the signal strength signal intensity that detects around the wireless base station of local station, detect the signal strength signal intensity of described local station once more, when the detected signal strength signal intensity of local station surpasses described threshold value, continue the connection between mobile unit and the local station.
5. the radio phone base station switching method in the radio phone unit, be used to detect signal receiving strength from a plurality of wireless base stations, and the communication between the wireless base station that carries out selecting according to described received signal intensity through a radiolink and the mobile radio station, method comprises step:
When the signal strength signal intensity of local station was equal to or less than the threshold value of storage in advance, detection ring was around the signal strength signal intensity of the wireless base station of described local station,
From the signal strength signal intensity that is detected, select to have the wireless base station of maximum signal,
With described maximum signal and local wireless signal of base station strength ratio;
When maximum signal greater than predetermined value of signal strength signal intensity of local station or more for a long time, select the wireless base station;
Described mobile unit is connected to described wireless base station.
6. according to the radio phone base station switching method of claim 5, after the signal strength signal intensity that detects around the wireless base station of local station, detect the signal strength signal intensity of local station once more, when the described detected signal strength signal intensity of local station surpasses described threshold value, continue the connection between mobile unit and the local station.
CN99101336A 1998-01-20 1999-01-19 Radio phone unit and radio phone base station switching method Pending CN1229328A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8784/98 1998-01-20
JP10008784A JPH11205843A (en) 1998-01-20 1998-01-20 Radio telephone system

Publications (1)

Publication Number Publication Date
CN1229328A true CN1229328A (en) 1999-09-22

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Application Number Title Priority Date Filing Date
CN99101336A Pending CN1229328A (en) 1998-01-20 1999-01-19 Radio phone unit and radio phone base station switching method

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JP (1) JPH11205843A (en)
CN (1) CN1229328A (en)
GB (1) GB2333424A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1299517C (en) * 2001-03-23 2007-02-07 株式会社东芝 Radio device and switching control method of radio device
CN100415047C (en) * 2005-05-31 2008-08-27 华为技术有限公司 Alien-frequency hard switching-over method in wide-band CDMA system
CN100450265C (en) * 2002-09-30 2009-01-07 索尼爱立信移动通讯股份有限公司 Method and device of selecting a communication system
CN101075839B (en) * 2003-07-15 2011-02-02 Kddi株式会社 Interference signal suppression circuit, program used for relay and relay
CN101466097B (en) * 2007-12-17 2011-03-16 中兴通讯股份有限公司 Method for providing continuous high speed access for mobile terminal
CN101374009B (en) * 2007-08-20 2013-12-04 中兴通讯股份有限公司 Method for switching business channel of relay network
CN104838637A (en) * 2012-12-11 2015-08-12 高通股份有限公司 Methods and apparatus for updating a device configuration
CN105828396A (en) * 2016-03-11 2016-08-03 珠海市磐石电子科技有限公司 Channel switching method and system in multiple channels
CN105939530A (en) * 2016-06-23 2016-09-14 北京小米移动软件有限公司 Wireless hotspot access method and device
CN113873686A (en) * 2021-10-14 2021-12-31 福州思飞信息技术有限公司 Electronic price tag base station switching method and device based on Internet of things

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JP3383618B2 (en) 1999-08-18 2003-03-04 松下電器産業株式会社 Mobile communication terminal apparatus and reception strength detection method
JP3349477B2 (en) 1999-09-08 2002-11-25 三洋電機株式会社 Mobile communication device, mobile communication system, and communication channel assignment request method
JP2001128204A (en) * 1999-10-27 2001-05-11 Matsushita Electric Ind Co Ltd Mobile communication terminal and hand-over control method
JP3276619B2 (en) * 1999-10-27 2002-04-22 松下電器産業株式会社 Mobile communication terminal device and handover control method
US7110765B2 (en) * 2002-08-27 2006-09-19 Qualcomm Incorporated Limiting cell reselection based on pilot power
JP4869036B2 (en) 2006-11-20 2012-02-01 京セラ株式会社 Voice communication device

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GB2328582B (en) * 1997-08-22 2002-06-19 Nec Technologies Mobile radio station -station monitoring control

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1299517C (en) * 2001-03-23 2007-02-07 株式会社东芝 Radio device and switching control method of radio device
CN100450265C (en) * 2002-09-30 2009-01-07 索尼爱立信移动通讯股份有限公司 Method and device of selecting a communication system
CN101075839B (en) * 2003-07-15 2011-02-02 Kddi株式会社 Interference signal suppression circuit, program used for relay and relay
CN100415047C (en) * 2005-05-31 2008-08-27 华为技术有限公司 Alien-frequency hard switching-over method in wide-band CDMA system
CN101374009B (en) * 2007-08-20 2013-12-04 中兴通讯股份有限公司 Method for switching business channel of relay network
CN101466097B (en) * 2007-12-17 2011-03-16 中兴通讯股份有限公司 Method for providing continuous high speed access for mobile terminal
CN104838637A (en) * 2012-12-11 2015-08-12 高通股份有限公司 Methods and apparatus for updating a device configuration
US9615401B2 (en) 2012-12-11 2017-04-04 Qualcomm Incorporated Methods and apparatus for updating a device configuration
CN105828396A (en) * 2016-03-11 2016-08-03 珠海市磐石电子科技有限公司 Channel switching method and system in multiple channels
CN105939530A (en) * 2016-06-23 2016-09-14 北京小米移动软件有限公司 Wireless hotspot access method and device
CN113873686A (en) * 2021-10-14 2021-12-31 福州思飞信息技术有限公司 Electronic price tag base station switching method and device based on Internet of things

Also Published As

Publication number Publication date
GB9901226D0 (en) 1999-03-10
GB2333424A (en) 1999-07-21
JPH11205843A (en) 1999-07-30

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