WO1998047245A1 - Procede pour commander les communications d'un equipement mobile et equipement mobile - Google Patents
Procede pour commander les communications d'un equipement mobile et equipement mobile Download PDFInfo
- Publication number
- WO1998047245A1 WO1998047245A1 PCT/JP1998/001682 JP9801682W WO9847245A1 WO 1998047245 A1 WO1998047245 A1 WO 1998047245A1 JP 9801682 W JP9801682 W JP 9801682W WO 9847245 A1 WO9847245 A1 WO 9847245A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base station
- synchronization
- reception
- asynchronous reception
- asynchronous
- Prior art date
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Classifications
-
- 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
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1607—Supply circuits
- H04B1/1615—Switching on; Switching off, e.g. remotely
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- 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
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0079—Receiver details
- H04L7/0083—Receiver details taking measures against momentary loss of synchronisation, e.g. inhibiting the synchronisation, using idle words or using redundant clocks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/10—Arrangements for initial synchronisation
-
- 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 communication control method for a mobile station that performs communication between a base station and a mobile station, and a mobile station. More specifically, the present invention relates to a base station that performs asynchronous reception to establish synchronization with a base station. If the control signal transmitted from the station cannot be received continuously, the mobile station is improved to reduce the power consumption by changing the reception stop time until the mobile station enters asynchronous reception again.
- the present invention relates to a communication control method and a mobile device. Background art
- a base station transmits a control signal at regular intervals.
- the mobile station (mobile unit) performs continuous reception (asynchronous reception) for a certain period of time to establish synchronization with the base station when the power is turned on or when synchronization with the base station is lost.
- a control signal is received from the base station in this asynchronous reception, the mobile station reproduces the transmission clock of the base station from this control signal and establishes synchronization.
- reception is performed only at the timing and slot specified by the control channel, and otherwise, the transmission operation is performed.
- FIG. 9 is a state transition diagram showing the operation of the mobile station of the above conventional mobile communication device.
- the mobile station when the mobile station turns on the power (state 701), the mobile station does not yet synchronize with the base station, so it first performs asynchronous reception (state 702). At this time, if a control signal is successfully received from a base station (not shown), the mobile station reproduces the base station's transmission terminal from the control signal sent by the control channel to establish synchronization. Reception operation is performed only at the timing and slot specified by the control signal, and otherwise, the device enters the intermittent reception state in which power saving operation is performed.
- the intermittent reception state of state 03 or the call state of state 704 if the control signal from the base station cannot be received and synchronization is lost, the state returns to the asynchronous reception state for establishing synchronization of state 702 .
- the asynchronous receiving state of the state 702 if the control signal reception from the base station fails, the asynchronous receiving is temporarily stopped (state 705). Then, after waiting for a certain period of time (state 706), the state returns to state 702 again, asynchronous reception for establishing synchronization is performed, and this operation is performed in state 702 to receive a control signal from the base station. And repeat until synchronization is established.
- FIG. 10 shows the standby time shown in state 706 in the conventional mobile station shown in FIG. 9 above, that is, when the reception of the control signal transmitted from the base station due to the asynchronous reception of the mobile station has failed.
- 6 is a graph showing a reception stop time before starting to receive asynchronously again.
- the reception stop time is a fixed value irrespective of the number of continuous reception failures of the control signal. If you cannot receive with the base station for a long time, such as when you are in a location where the radio wave propagation is poor, such as between buildings, you can repeat the asynchronous reception with this fixed value. Therefore, there is a problem that this consumes power unnecessarily.
- FIG. 11 is a diagram showing a specific example of the reception operation of a two-sided waiting mobile station that can establish synchronization simultaneously with two different base stations.
- the mobile station 901 is connected between two different base stations, for example, a public base station 902 located on a telephone pole or the like and a home base station 903 located in a home.
- the home base station 903 is a high-priority base station
- the public base station 902 is a low-priority base. Set as a station.
- the two different base stations may not be synchronized, the transmission timings of the control signals of the two base stations may overlap. Therefore, when the transmission timings of the control signals overlap, the mobile station performs a receiving operation for the control signal of the base station having a higher priority.
- FIG. 12 shows the relationship between the transmission timings of the control signals of the base station A having a high priority and the base station B having a low priority and the reception control signals of the two-sided waiting mobile station.
- the two-sided waiting mobile station becomes a base station with a higher priority. Since the control signal of A is received and the control signal of base station B with low priority cannot be received, the number of times that the base station B with lower priority has failed to receive the control signal More.
- the reception stop time until the asynchronous reception is performed again is a fixed value for both, so that synchronization with one base station can be achieved.
- power consumption increases due to repeated failures in receiving control signals from the other base station.
- the mobile communication device even when the mobile communication device is out of the area of the base station for a long time, the asynchronous reception is repeatedly performed with the fixed value, so that the power is wasted. There was a problem of consumption.
- an object of the present invention is to provide a communication control method for a mobile device and a mobile device that reduce power consumption due to useless repetition of asynchronous reception for establishing synchronization.
- a first aspect of the present invention is a communication control method for a mobile station, which receives a control signal transmitted from a base station and performs an operation of establishing synchronization with the base station.
- the reception of the control signal transmitted from the base station is temporarily stopped for a predetermined time, and then the synchronization establishment operation is restarted.
- the reception stop time for temporarily stopping the reception of the control signal transmitted from the base station is changed to be longer corresponding to the elapsed time.
- the invention according to claim 2 is the invention according to claim 1, wherein the number of times that the synchronization establishing operation fails consecutively is counted, and the reception stop time is changed to be longer as the count value increases.
- the invention of claim 3 is the invention of claim 1 or 2, wherein the reception stop time is returned to an initial value in response to the operation of the mobile device.
- the invention of claim 4 is the invention according to any one of claims 1 to 3, wherein the synchronization establishing operation is performed by asynchronously receiving a control signal transmitted from the base station for a predetermined time.
- the synchronization establishing operation is performed between at least two base stations, and the reception stop time is separately set for each base station. It is characterized by being performed.
- priority is set in advance for each of the base stations, and a control signal from the base station whose priority is set to be high is transmitted. It is characterized by receiving preferentially.
- the invention according to claim 7 is the invention according to claim 6, wherein the base station set with the higher priority is set shorter than the base station set with the lower priority.
- the invention according to claim 8 is characterized in that, by regenerating a transmission clock of a control signal transmitted from the base station at a constant interval, the synchronization of the radio line with the base station is maintained while maintaining the synchronization with the base station.
- transmission is performed at a fixed interval from the base station to establish synchronization with the base station.
- the asynchronous reception operation for asynchronously receiving the control signal to be performed for a certain period of time is performed, and if the synchronization with the base station fails due to the asynchronous reception operation, the asynchronous reception operation is temporarily stopped for a predetermined time, and then When the asynchronous reception operation for establishing synchronization is restarted, and the synchronization with the base station fails continuously due to the asynchronous reception operation, the elapsed time since the synchronization with the base station is lost. According to the above And feature to change long asynchronous reception suspending time to temporarily stop the receiving operation.
- the invention of claim 9 is the invention of claim 8, wherein the number of times of consecutive failures in establishing synchronization with the base station is counted, and as the count value increases, the asynchronous reception stop time is changed to be longer. It is characterized by doing.
- the asynchronous reception stop time is returned to the initial value of the predetermined time in response to the operation of the mobile device.
- the invention of claim 11 is the invention of claim 8, wherein the method is performed between at least two base stations, and the asynchronous reception stop time is set separately for each base station. I do.
- the invention of claim 12 is the invention according to claim 11, wherein priorities are respectively set to the bases in advance, and the base stations from which the priorities are set to a higher priority are set.
- the control signal is preferentially received.
- the invention of claim 13 is the invention according to claim 12, wherein the asynchronous reception is stopped.
- the time is set shorter in the base station set in the higher priority than in the base station set in the lower priority.
- the invention according to claim 14 is characterized in that, by regenerating a transmission clock of a control signal transmitted from the base station at a constant interval, the synchronization of the radio line with the base station is maintained, and In a mobile device performing communication between the base station, when synchronization with the base station is lost, a control signal transmitted from the base station at regular intervals to establish synchronization with the base station.
- the invention according to claim 15 is the invention according to claim 14, wherein the second control means includes a counting means for counting the number of times of failing to establish synchronization with the base station continuously, The asynchronous reception stop time is changed longer as the count value of the counting means increases.
- the invention of claim 16 is the invention of claim 14 or 15, wherein the asynchronous reception stop time for returning the asynchronous reception stop time to the initial value in response to a predetermined operation. It is characterized by having a return means.
- the invention of claim 17 is the invention of claim 14, wherein the synchronization establishing operation is performed between at least two base stations, and the asynchronous reception stop time is separately set for each base station. It is characterized by being set.
- the invention of claim 18 is the invention of claim 17, wherein priorities are respectively set to the base stations in advance, and a control signal from the base station in which the priorities are set to be higher is transmitted. It is characterized by receiving preferentially.
- the invention of claim 19 is the invention of claim 18, wherein the asynchronous reception suspension time is set such that the base station for which the priority is set higher is a base station for which the priority is set lower. It is characterized in that it is set shorter than the station.
- FIG. 1 is a block diagram showing an overall configuration of a mobile station to which a mobile station communication control method and a mobile station according to the present invention are applied.
- FIG. 2 is a flowchart showing the synchronization establishing operation of the mobile station shown in FIG.
- FIG. 3 is a graph showing an example of a reception stop time-reception failure frequency characteristic in the mobile station shown in FIG.
- FIG. 4 is a graph showing another example of the reception stop time-reception failure frequency characteristic in the mobile station shown in FIG.
- FIG. 5 is a graph showing an example of the reception stop time of a mobile station capable of waiting on two sides according to the present invention, and the number of reception failure times of 1 ".
- FIG. 6 is a graph showing another example of the reception stop time-reception failure frequency characteristic of a mobile station capable of waiting on two sides according to the present invention.
- FIG. 7 is a flowchart showing another example of the synchronization establishing operation of the mobile station shown in FIG.
- FIG. 8 is a flowchart showing yet another example of the synchronization establishing operation of the mobile station shown in FIG.
- FIG. 9 is a state transition diagram showing the asynchronous reception operation according to the conventional method.
- FIG. 10 is a graph showing an example of the reception stop time-reception failure frequency characteristic according to the conventional method.
- FIG. 11 is a diagram showing a specific example of a mobile communication device capable of waiting on two sides.
- FIG. 12 is a diagram illustrating a control signal received by a mobile communication device capable of waiting on two sides at a transmission timing of a control signal transmitted from a base station having a different priority.
- FIG. 1 is a block diagram showing a mobile station (mobile device) configured by applying the mobile communication method and device according to the present invention.
- the mobile station includes an antenna 11 for transmitting and receiving radio waves to and from a base station (not shown), a radio unit 1 for transmitting and receiving signals transmitted and received via the antenna 11, and an output from the radio unit 1.
- Modem 2 for demodulating the received signal demodulated and the transmission signal output from the channel codec 3 described later, processing for acquiring a slot signal received from the received signal demodulated by the modem 2, and speech described later
- a channel codec unit 3 that performs a process of generating an intermittent signal by inputting the transmission signal output from the unit 4 into a predetermined time slot, and receiving an output signal from the channel codec unit 3 using an ADP luse Co de Modulation, PCM (Pu 1 use Co de Modulation) and transmission signal output from Microphone 44 described later
- a communication unit 4 that performs PCM code and ADPCM code, a speaker 43 that is a receiver, a microphone 44 that is a transmitter, a control unit 5 that controls the entire device, displays necessary for communication, dial numbers, etc.
- the radio unit 1 performs transmission or reception from a transmission / reception switch (SW) 14 for switching the antenna 11 between the reception unit 12 and the transmission unit 13, a reference oscillator 15 such as a crystal oscillator, and a reference oscillator 15.
- Synthesizer 16 for synthesizing the carrier signal required for this purpose, using the carrier signal output from the synthesizer 16 to perform the frequency conversion of the received radio frequency signal, the modulated signal output from the modem unit 2
- the transmission unit 13 is configured to perform frequency conversion on a transmission signal using a carrier signal output from the synthesizer 16, amplify power to a level required for transmission, and transmit the signal.
- the modem unit 2 demodulates and detects a ⁇ / 4 shift QPSK (Quadrature Phase Shift Keying) modulated signal of the received baseband signal output from the receiving unit 12, and converts the demodulated signal into a serial data signal.
- a modulation unit 22 modulates a serial data signal from a TDMA transmission unit 31, which will be described later, into a ⁇ -no.
- the channel codec unit 3 generates a synchronization signal from the time-division multiplexed serial data signal output from the demodulation unit 21.
- the synchronization circuit 32 further allocates the received signal based on the synchronization signal to its own station.
- the TDMA receiver 33 and the TDMA receiver 33 which extracts the signal of the slot that has received the data, determines the data identification code (CI code), and the type of data, and outputs the data to a predetermined output port, transmits the transmission signal from the communication unit 4 to the transmission slot. It is composed of a TDMA transmission unit 31 for transmitting data at the same time.
- the communication unit 4 performs adaptive differential pulse coding that decodes the adaptive differential pulse coded signal output from the TDMA receiving unit 33 to generate a PCM signal and performs voice coding according to linear prediction of the voice signal.
- ADP CM codec 41 consisting of a PCM codec 42 that converts a signal digitized into a PCM code into an analog signal and digitizes analog speech into a PCM code 42, and a speaker 43 as a receiver And a microphone 44 as a transmitter.
- a reception signal received from a base station (not shown) via the antenna 11 is frequency-converted by the reception unit 12 and further demodulated by the demodulation unit 21. Then, the slot allocated to the own station is extracted from the reception signal time-division multiplexed by the TDMA receiver 33. Then, it is decoded by the ADP CM codec 41 and the PCM codec 42 and output from the speaker 43.
- the voice signal input from the microphone 44 is first encoded by the PCM codec 42 and the ADP CM codec 41 on the reverse path to the reception signal. Then, the TDMA transmission unit 31 transmits the input audio signal in a predetermined transmission slot negotiated with the base station. Then it is changed by the modulator 22. The frequency is converted by the transmission unit 13 and transmitted through the antenna 11.
- FIG. 2 is a flowchart showing the synchronization establishing operation in the mobile station shown in FIG.
- a control signal is transmitted at regular intervals from a base station (not shown).
- the mobile station performs a certain continuous reception operation (asynchronous reception operation) to receive this control signal when the power is on or when the synchronization with the base station is lost.
- step 201 when the mobile station turns on the power (step 201), since the mobile station has not been synchronized with the base station in this case, the base station for establishing the synchronization is established. Assuming that the number N of reception failures of the control signal from the station is 1 (step 202), an asynchronous reception operation is performed (step 203). If the mobile station receives the desired control signal (step 204, YES), it clears the number of reception failures N (step 205) and regenerates the transmission clock from the received control signal. To establish synchronization (step 206). Thereafter, intermittent reception is performed in which the reception operation is performed only at the timing and slot designated by the control signal (step 207). At this time, if synchronization with the base station is lost, the mobile station returns to step 202 and performs asynchronous reception again (step 203).
- step 208 the communication state is entered (step 208).
- the call is terminated, the call is disconnected, and the call returns to intermittent reception (step 207).
- the reception failure frequency N is incremented by one (step 209), and the reception is stopped (step 210). Then, a standby state is entered in a reception stop time corresponding to the number N of reception failures (step 211). After the elapse of the above time, the mobile station returns to step 203 again and performs asynchronous reception.
- Figure 3 shows how, in the synchronization establishment operation shown in Fig. 2, when the mobile station fails to receive a control signal, the reception stop time before performing asynchronous reception again corresponds to the number of control signal reception failures. It shows whether it changes. That is, in Fig. 3, after the number of failed receptions A, if the number of failed receptions is less than A, the reception stop time is reduced, and if the number of failed receptions is greater than A, the reception stop time is increased. It is controlled in two stages.
- the next asynchronous reception can be performed immediately by reducing the reception stop time, and the mobile station can be connected to the base station.
- power consumption can be reduced by increasing the reception stop time in response to the increase in the number of reception failures.
- Figure 4 shows how, in the synchronization establishment operation shown in Figure 2, when the mobile station fails to receive the control signal, the reception suspension time until the asynchronous reception is performed again corresponds to the number of control signal reception failures. It shows another example of how it changes.
- This example is suitable for use in a small cell system such as PHS, for example, where the reception stop time is reduced when the number of reception failures is small, and the reception stop time is set to B as the number of reception failures increases. Control steplessly or multisteply so as to converge to
- the reception stop time is shortened, so that when the mobile terminal enters the area of another base station, asynchronous reception can be started immediately.
- the reception suspension time is converged to a certain value B, so that when the mobile station enters the area of the base station, it is possible to reduce the time required for switching to asynchronous reception.
- Figure 5 shows that when a mobile station that can wait on two sides fails to receive a control signal in the synchronization establishment operation shown in Figure 2, the reception suspension time until the mobile station that can wait on two sides performs asynchronous reception again. It shows how it changes according to the number of control signal reception failures.
- the solid-line graph and the dotted-line graph show how the reception stop time until the mobile station performs asynchronous reception again changes in response to the number of control signal reception failures. This is shown for one base station.
- Fig. 6 shows that when the mobile station that can wait on two sides fails to receive the control signal in the synchronization establishment operation shown in Fig. 2, It shows how the reception stop time changes in response to the number of times of failure in receiving a control signal transmitted from each of a high-priority base station and a low-priority base station.
- the reception suspension time for each base station is short for both the high-priority base station and the low-priority base station.
- the reception suspension time for lower-level base stations converges to a value of D
- the reception suspension time for higher-priority base stations converges to a value of E that is smaller than the reception suspension time D for lower-priority base stations.
- the asynchronous reception can be performed immediately by reducing the reception stop time. If the mobile station is far from the base station, By increasing the reception stop time in response to the increase in the number of reception failures, power consumption can be reduced.In particular, the value of the reception stop time of a base station with a high priority is reduced by the reception of a base station with a low priority By setting a value smaller than the stop time, if the mobile station enters the high-priority base station area again, synchronization will be established. Time can be reduced.
- the mobile station may be configured to return the extended reception stop time to the initial value by operating a specific key or operating any key.
- FIG. 7 is a flowchart illustrating another example of the synchronization establishing operation in the mobile station shown in FIG. 1 in such a configuration.
- the mobile station in the standby state with the reception stop time corresponding to the number N of reception failures in step 211 shown in FIG. 2, the mobile station operates a specific key or presses any key at the mobile station. It is configured to reset the reception stop time to the initial value when there is a release operation by an operation.
- step 211 it is checked whether or not there is a release operation at the mobile station (step 211), and if there is no release operation (step 211, NO)
- step 212 if it is determined in step 212 that there is a release operation (step 212, YES), the process returns to step 202,
- the reception stop time is configured to return to the initial value.
- step 202 it is set to ⁇ 1 and the reception stop time is set to its initial value.
- the other steps are the same as those in the flowchart of FIG.
- the number N of reception failures of the control signal due to the asynchronous reception operation increases due to the operation of the user, and even if the reception stop time is long, this can be returned to the initial value.
- control is performed such that the reception stop time is lengthened in accordance with the number of times of failure in establishing synchronization based on the asynchronous reception operation, that is, the number of control signal reception failures during the asynchronous reception operation.
- First asynchronous reception operation for establishment The reception stop time may be controlled to be longer in accordance with the elapsed time since the start of the reception.
- FIG. 8 is a flowchart illustrating yet another example of the synchronization establishing operation in the mobile station shown in FIG. 1 in the case of such a configuration.
- a fixed continuous reception operation (asynchronous reception operation) is performed to start a timer and receive a control signal from the base station. If synchronization cannot be continuously established by this asynchronous reception operation, control is performed so as to lengthen the reception stop time corresponding to the counting time of this timer. That is, when the power of the mobile station is turned ON (step 301), the timer is started (step 302) and the asynchronous reception operation is performed (step 303).
- the target control signal is received (step 304, YES)
- the timer is cleared (step 300)
- the transmission clock is reproduced from the received control signal, and synchronization is established (step 304). 306).
- step 307 intermittent reception is performed in which reception operation is performed only at the timing and slot designated by the control signal.
- step 303 the mobile station returns to step 302 and performs asynchronous reception again.
- step 307 When a call or an incoming call is made during the intermittent reception operation of step 307 and the call control is completed, the communication state is entered (step 308). When the communication is completed, the call is terminated, and the call returns to intermittent reception through call control for disconnecting the line (step 307).
- step 304 If the target control signal is not received in step 304, the reception is temporarily stopped (step 210), and the apparatus enters the standby state with the reception stop time corresponding to the counting time of the timer (step 31). 0). After the elapse of the above time, the mobile station returns to step 303 again and performs asynchronous reception.
- the relationship between the timer counting time and the reception stop time can be controlled in the same manner as described with reference to FIGS.
- the reception stop time may be returned to its initial value.
- the present invention relates to a communication control method for a mobile station communicating with a base station and a mobile station. According to the present invention, when the mobile station cannot continuously receive a control signal transmitted from the base station during asynchronous reception for establishing synchronization with the base station, the mobile station switches to asynchronous reception again. The power consumption can be reduced by lengthening the reception suspension time before entering.
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- Synchronisation In Digital Transmission Systems (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU67490/98A AU6749098A (en) | 1997-04-15 | 1998-04-13 | Method for controlling communication of mobile equipment and mobile equipment |
CN98800486A CN1123149C (zh) | 1997-04-15 | 1998-04-13 | 移动电话的通信控制方法以及移动电话 |
EP98912777A EP0920148B1 (en) | 1997-04-15 | 1998-04-13 | Method for controlling communication of mobile equipment and mobile equipment |
DE69834614T DE69834614T2 (de) | 1997-04-15 | 1998-04-13 | Verfahren zur steuerung der kommunikationen eines mobilen geräts und mobiles gerät |
US09/202,449 US6370111B1 (en) | 1997-04-15 | 1998-04-13 | Method for controlling communication of mobile equipment and mobile equipment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9097429A JPH10290194A (ja) | 1997-04-15 | 1997-04-15 | 移動通信方法および装置 |
JP9/97429 | 1997-04-15 |
Publications (1)
Publication Number | Publication Date |
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WO1998047245A1 true WO1998047245A1 (fr) | 1998-10-22 |
Family
ID=14192168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP1998/001682 WO1998047245A1 (fr) | 1997-04-15 | 1998-04-13 | Procede pour commander les communications d'un equipement mobile et equipement mobile |
Country Status (7)
Country | Link |
---|---|
US (1) | US6370111B1 (ja) |
EP (1) | EP0920148B1 (ja) |
JP (1) | JPH10290194A (ja) |
CN (1) | CN1123149C (ja) |
AU (1) | AU6749098A (ja) |
DE (1) | DE69834614T2 (ja) |
WO (1) | WO1998047245A1 (ja) |
Families Citing this family (8)
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EP1220476B1 (en) * | 2000-12-27 | 2011-04-27 | Canon Kabushiki Kaisha | Wireless communication system with control of transmission timing |
ATE365399T1 (de) | 2002-11-04 | 2007-07-15 | Research In Motion Ltd | System und verfahren zur leistungseinsparung in einer drahtlosen vorrichtung |
WO2004093476A1 (ja) * | 2003-04-16 | 2004-10-28 | Nec Corporation | 移動通信システム、基地局、移動局、及びそれらに用いる無線通信方法 |
EP1724939A4 (en) | 2004-04-02 | 2011-11-02 | Panasonic Corp | RECEIVER DEVICE |
JP4667194B2 (ja) * | 2005-10-07 | 2011-04-06 | 株式会社エヌ・ティ・ティ・ドコモ | 規制制御システム、無線通信端末装置、規制制御方法、無線通信端末制御方法 |
JP4718595B2 (ja) * | 2007-12-27 | 2011-07-06 | パナソニック株式会社 | 無線通信システム及び携帯端末装置 |
WO2013012286A2 (ko) * | 2011-07-20 | 2013-01-24 | 엘지전자 주식회사 | 이종 네트워크에서 시간 동기를 획득하는 방법 및 이를 위한 장치 |
WO2016056523A1 (ja) * | 2014-10-06 | 2016-04-14 | 株式会社テイエルブイ | 対象情報送受信管理システム |
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JP2840028B2 (ja) * | 1994-07-11 | 1998-12-24 | 日立電子株式会社 | 無線電話システム |
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1997
- 1997-04-15 JP JP9097429A patent/JPH10290194A/ja active Pending
-
1998
- 1998-04-13 DE DE69834614T patent/DE69834614T2/de not_active Expired - Lifetime
- 1998-04-13 CN CN98800486A patent/CN1123149C/zh not_active Expired - Fee Related
- 1998-04-13 EP EP98912777A patent/EP0920148B1/en not_active Expired - Lifetime
- 1998-04-13 AU AU67490/98A patent/AU6749098A/en not_active Abandoned
- 1998-04-13 WO PCT/JP1998/001682 patent/WO1998047245A1/ja active IP Right Grant
- 1998-04-13 US US09/202,449 patent/US6370111B1/en not_active Expired - Fee Related
Patent Citations (3)
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JPH04334215A (ja) * | 1991-05-10 | 1992-11-20 | Matsushita Electric Ind Co Ltd | 移動無線装置 |
JPH0730478A (ja) * | 1993-07-09 | 1995-01-31 | Nippondenso Co Ltd | ディジタルコードレス電話の省電力子機 |
JPH08317464A (ja) * | 1995-05-22 | 1996-11-29 | Nippon Telegr & Teleph Corp <Ntt> | 無線電話方式における発信接続法及び無線電話方式において用いる移動局 |
Non-Patent Citations (1)
Title |
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See also references of EP0920148A4 * |
Also Published As
Publication number | Publication date |
---|---|
CN1223042A (zh) | 1999-07-14 |
DE69834614T2 (de) | 2007-05-03 |
DE69834614D1 (de) | 2006-06-29 |
CN1123149C (zh) | 2003-10-01 |
EP0920148A4 (en) | 2001-02-28 |
EP0920148B1 (en) | 2006-05-24 |
AU6749098A (en) | 1998-11-11 |
EP0920148A1 (en) | 1999-06-02 |
JPH10290194A (ja) | 1998-10-27 |
US6370111B1 (en) | 2002-04-09 |
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