WO2004086805A1 - 移動端末及びcdma通信方法 - Google Patents
移動端末及びcdma通信方法 Download PDFInfo
- Publication number
- WO2004086805A1 WO2004086805A1 PCT/JP2004/004151 JP2004004151W WO2004086805A1 WO 2004086805 A1 WO2004086805 A1 WO 2004086805A1 JP 2004004151 W JP2004004151 W JP 2004004151W WO 2004086805 A1 WO2004086805 A1 WO 2004086805A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- communication
- channel
- cdma
- standby
- mobile terminal
- Prior art date
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
-
- 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 present invention relates to a mobile terminal and a CDMA communication method suitable for use in a mobile communication system of a CDMA system.
- PDC Personal Digital Cellular Te Telecommunication System
- PHS Personal Handy-phone System
- the transmission / reception circuit becomes more complicated than that of the mobile terminal of the PDC system or the PHS system, so that the power consumption is large and it is difficult to use the mobile terminal for a long time.
- An object of the present invention is to make a mobile terminal not use a communication channel of the CDMA system for communication with a base station when using a standby mode, but use a channel of another communication system with low processing and low power consumption related to wireless communication. Accordingly, it is an object of the present invention to provide a mobile terminal and a CDMA communication method capable of reducing power consumption during standby and extending the use time. This object can be achieved when the mobile terminal uses a channel of another communication system that consumes less power, such as the CDMA system, the PDC system, or the PHS system during standby.
- FIG. 1 is a block diagram showing a schematic configuration of a CDMA system according to one embodiment of the present invention.
- FIG. 2 is a flowchart showing an operation of the mobile terminal of the CDMA system according to one embodiment of the present invention.
- FIG. 1 is a block diagram showing a schematic configuration of a CDMA communication system according to one embodiment of the present invention.
- the CDMA communication system includes base station 10 and mobile terminal 20 that receives a communication service from base station 10.
- the CDMA communication channel transmission / reception unit 101 transmits and receives signals to and from the mobile terminal 20 via a CDMA communication channel based on the control of the control unit 103.
- the generated transmission data is transmitted to the mobile terminal 20 via the radio line, and the received data received from the mobile terminal 20 is acquired.
- the standby channel transmitting unit 102 uses a communication channel of the PDC system using a TDMA (Time Division Multiple Access) system, which is a communication system different from the CDMA system.
- a signal is transmitted to the mobile terminal 20 via a wireless line.
- TDMA Time Division Multiple Access
- the control unit 103 waits for the standby channel transmitting unit 102 to transmit a signal to the mobile terminal 20.
- the control unit controls the channel transmission unit 102 so that when the mobile terminal 20 is in a communication state, it transmits and receives signals between the CDMA communication channel transmission / reception unit 101 and the mobile terminal 20. Controls the unit 101.
- the power-on detecting section 201 When detecting that the power is turned on, the power-on detecting section 201 outputs a signal to that effect to the standby channel receiving section 202.
- the standby channel receiving unit 202 receives a signal indicating that power-on has been detected from the power-on detecting unit 201, or, based on the control of the control unit 205, establishes a communication channel of the CDMA system. Is a separate communication system that requires less processing related to wireless communication than the CDMA wireless communication.It is a communication system that consumes less power, and receives signals from the base station 10 over a PDC communication channel to acquire received data. .
- the communication channel transmitting / receiving unit 203 transmits and receives signals to and from the base station 10 via a CDMA communication channel based on the control of the control unit 205. While receiving the data received from the base station 10, it generates transmission data of the CDMA system and transmits it to the base station 10.
- the detecting unit 204 detects switching between the communication state and the standby state, and outputs a signal to that effect to the control unit 205 when the switching is detected. For example, the detecting unit 204 detects the user's communication start operation in response to the user's call operation or call reception as detection of switching between the communication state and the standby state.
- the control unit 205 switches the communication channel transmission / reception unit 203 to the standby channel reception unit 202. Control is performed so that only the signal from the base station 10 is received, and when it is detected that the state has been switched from the standby state to the communication state, the standby channel receiving section 202 is switched to the communication channel transmitting / receiving section 203. Control is performed to transmit and receive signals to and from the base station 10.
- the mobile terminal 20 Since the mobile terminal 20 only needs to be able to receive control information from the base station 10 during standby other than during communication, it uses a communication channel of the high power consumption CDA system. No need to use. For this reason, the transmission / reception circuit uses a PDC communication channel that is simpler than the CDMA method. At the same time, when the mobile terminal 20 is in the standby state, the base station 10 transmits control information from the standby channel transmission unit 102 to the mobile terminal 10.
- the control unit 205 of the mobile terminal 20 is constituted by a microcomputer, and a program for operating the microcomputer uses a communication channel of a CDMA system during communication to transmit a radio signal to and from the base station.
- the CDMA communication switching procedure is different from that in the CDMA method. It has a channel switching procedure for switching from the standby channel to the communication channel of the CDMA communication method when the communication state is established.
- FIG. 2 is a flowchart showing the operation of the mobile terminal 20.
- the power-on detection section 201 detects the power-on and operates the standby channel receiving section 202 to be in a standby state immediately after the power is turned on.
- the standby channel receiving section 202 performs reception by the PDC method (step 11).
- the detecting unit 204 determines whether or not an operation to shift to the communication state has been performed in the standby state. That is, the detecting unit 204 determines whether or not the user has performed a call operation or a communication start operation for an incoming call (step 12). If it is not determined that the operation to shift to the communication state has been performed, the process returns to step 11.
- step 05 the communication channel transmitting / receiving unit 203 is operated to start the communication by the CDMA system to start the communication by the CDMA system (step 13).
- the detecting unit 204 determines whether or not the communication has been completed, that is, whether or not the communication state has been switched to the standby state (step 14). If the communication has not ended, the process returns to step 13 and the communication ends. In this case, the control unit 205 stops the operation of the communication channel transmitting / receiving unit 203 and operates the standby channel receiving unit 202 to switch from the CDMA system to the PDC system (step 15), and proceeds to step 11 Return.
- the standby channel receiving section 202 when mobile terminal 20 shifts from the communication state to the standby state, operation of communication channel transmitting / receiving section 201 is stopped, and operation of standby channel receiving section 202 is started. Since the control information is only received from the base station 10 on the PDC communication channel from the communication on the CDMA communication channel, power consumption during standby can be reduced, The standby time can be extended. That is, the use time can be extended.
- the PDC system which has a simpler transmission / reception circuit than the CDMA system, is used.
- the GSM system which is used in the PHS connection, can also be used.
- the mobile terminal when the mobile terminal is on standby, it does not use a CDMA communication channel for communication with the base station, and performs processing related to wireless communication with a small amount of other communication methods that consume less power. Since this channel is used, power consumption during standby can be reduced and the use time can be extended.
- the present invention is suitable for use in a CDMA mobile communication system.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003083534 | 2003-03-25 | ||
JP2003-083534 | 2003-03-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004086805A1 true WO2004086805A1 (ja) | 2004-10-07 |
Family
ID=33094960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/004151 WO2004086805A1 (ja) | 2003-03-25 | 2004-03-25 | 移動端末及びcdma通信方法 |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2004086805A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09261167A (ja) * | 1996-03-26 | 1997-10-03 | Matsushita Electric Ind Co Ltd | スペクトラム拡散方式携帯電話装置 |
JP2000216878A (ja) * | 1999-01-21 | 2000-08-04 | Nec Mobile Commun Ltd | 無線電話機 |
JP2000244973A (ja) * | 1999-02-19 | 2000-09-08 | Fujitsu Ltd | スペクトラム拡散通信方法並びにその送信装置及び受信装置 |
JP2000278165A (ja) * | 1999-03-26 | 2000-10-06 | Nec Corp | 携帯電話装置及びその電力制御方法 |
JP2002176377A (ja) * | 2000-12-05 | 2002-06-21 | Kenwood Corp | 移動通信装置及び通信方法 |
-
2004
- 2004-03-25 WO PCT/JP2004/004151 patent/WO2004086805A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09261167A (ja) * | 1996-03-26 | 1997-10-03 | Matsushita Electric Ind Co Ltd | スペクトラム拡散方式携帯電話装置 |
JP2000216878A (ja) * | 1999-01-21 | 2000-08-04 | Nec Mobile Commun Ltd | 無線電話機 |
JP2000244973A (ja) * | 1999-02-19 | 2000-09-08 | Fujitsu Ltd | スペクトラム拡散通信方法並びにその送信装置及び受信装置 |
JP2000278165A (ja) * | 1999-03-26 | 2000-10-06 | Nec Corp | 携帯電話装置及びその電力制御方法 |
JP2002176377A (ja) * | 2000-12-05 | 2002-06-21 | Kenwood Corp | 移動通信装置及び通信方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101523967B (zh) | 无线通信方法以及无线通信装置 | |
CN100372263C (zh) | 天线选择系统和方法以及使用其的无线电通信设备 | |
US20070155344A1 (en) | Wireless multimode co-band receiver device and method employing receiver bypass control | |
JP3119605B2 (ja) | 無線基地局 | |
JP2003169011A (ja) | 携帯端末装置 | |
JP2006254442A (ja) | 携帯通信デバイスにおけるディープ・スリープ・モード | |
JP2956807B2 (ja) | ダイバシティ受信機 | |
JP2004088154A (ja) | 移動通信端末、待受け制御方法、待受け制御プログラム | |
KR100646465B1 (ko) | 통신 단말의 권외 판정 방법, 무선 통신 시스템 전환 방법및 통신 단말 | |
JP2004222172A (ja) | ダイバシティ受信装置およびダイバシティ受信方法 | |
WO2003052971A1 (fr) | Appareil telephonique mobile | |
WO2005013631A1 (ja) | 無線通信端末 | |
JP2004088521A (ja) | 複合携帯電話装置及びそれに用いる電池残量による無線方式自動切替方法並びにそのプログラム | |
WO2004086805A1 (ja) | 移動端末及びcdma通信方法 | |
JP4296240B2 (ja) | ソフトウェア無線通信装置および無線通信制御方法 | |
JP2003299141A (ja) | 無線通信装置 | |
JP2000101508A (ja) | 移動通信用無線端末装置 | |
JP2001036958A (ja) | 待受け受信方式 | |
JP2004356739A (ja) | 無線通信装置及びアンテナ切り替え方法 | |
JP2001156707A (ja) | 移動通信装置 | |
JP2004260477A (ja) | 移動通信システム | |
JP4181199B2 (ja) | 移動通信端末 | |
JPH10108262A (ja) | 移動体通信装置 | |
JP4463068B2 (ja) | 通信装置、通信方法及び通信プログラム | |
JP3769530B2 (ja) | 複合型携帯移動機端末及びそれに用いる通信方式切替え制御方法並びにそのプログラム |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |
|
122 | Ep: pct application non-entry in european phase |