CN1166763A - Radio communication system and radio base station apparatus - Google Patents
Radio communication system and radio base station apparatus Download PDFInfo
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- CN1166763A CN1166763A CN97111670.9A CN97111670A CN1166763A CN 1166763 A CN1166763 A CN 1166763A CN 97111670 A CN97111670 A CN 97111670A CN 1166763 A CN1166763 A CN 1166763A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
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Abstract
A communication slot number detection means detects slot numbers N required for the data communication from control signals for requesting the establishment of a link channel from a PHS terminal to perform the data communication. Then, a communication slot acquisition means acquires the N pieces of free slots continuing on the same carrier and performs the data communication. Also, in the case that the N pieces of the free slots continuing on the same carrier are not present, a communication slot formation means allocates a free channel to the PHS terminal for which a communication link is already established and communication is performed by the control of the PHS base station, instructs movement, forms the continuous N pieces of the free slots and performs the data communication by using the continuous N pieces of the free slots.
Description
The present invention relates to wireless communication system and radio base station apparatus such as the multiplexed multicarrier TDMA of the such use multichannel of PHS (personal handy phone system) (time division multiple access connection)-TDD (time division duplex) system.
This is well-known in this area, promptly the wireless communication system resemble PHS is made of the radio base station apparatus that a mobile communication terminal and is connected to public telephone network, and the multiplexed multicarrier TDMA-TDD system of one four channel is as the radio access system of communicating by letter between radio base station apparatus and mobile communication terminal.
In the above in the access system of type, for example, as shown in figure 10, use transmission signal frame that a plurality of wireless frequency f1 each frequency in the fm sends to constitute to DL4 by four time slot DL1 that are used for from four time slot UL1 of the up link of mobile communication terminal to base station communication to UL4 and be used for the down link from the base station to the mobile communication terminal address.Several time slot UL1 to up link to the time slot DL1 of UL4 and down link to DL4 as the channel that carries out radio communication.That is, utilize a radio frequency that four channels are provided.
In PHS, 37 radio frequencies (f1 is to f37) are provided, f12 wherein and f18 are used to control and other radio frequency rate is used for voice communication.Be used for the radio frequency of voice communication, f1 to f10 be used for direct voice communication between the mobile communication terminal (subelement) and remaining radio frequency be used for through base station and outside line voice communication and be used in a room or in the similar spaces through female unit the transfer message between mobile communication terminal (subelement).The rate of information transmission that is used for a time slot is 32 kilobits/second.
Between the time slot of identical radio frequency, use a time slot to carry out the general Speech Communication of PHS respectively for transmission and reception.In recent years, because the expansion of wireless base station has realized carrying out from phs terminal the so-called mobile computing processing of data communication.Handle according to this, might carry out the message transmission of about 32 kilobits/second.
When carrying out data communication, for example, No.6-77886 is disclosed as the Japanese Patent Application Publication publication, carries out data communication by using one or more empty slots selectively.
Yet, in the conventional wireless communication system that uses a plurality of time slot executive communications, be not always chosen in the same radio frequency continuous time slot, sometimes be chosen in a plurality of time slots on the different radio frequencies or select present same radio frequency but discontinuous a plurality of time slot, therefore, a plurality of time slots that must detection will use are compared with the data communication situation of using a time slot so partly to be controlled by controlled in wireless and are become extremely complicated.
The purpose of this invention is to provide a kind of even when using a plurality of time slots to carry out high-speed data communication, also do not increase under the situation of controlled in wireless part load, can finish the wireless communication system and the radio base station apparatus of high-speed data communication.
For realizing top purpose, comprise that control by a master control station can be connected to a plurality of radio base station apparatus of a public network and comprise with the wireless communication system of the present invention that wireless channel through a TDMA-TDD system is connected to a mobile communication terminal of radio base station apparatus: the communication time slot that is used for obtaining according to the information that sends from mobile communication terminal the necessary timeslot number N that communicates by letter that mobile communication terminal requires is counted checkout gear; Be used to be captured in the communication time slot acquisition equipment of the continuous N of same carrier wave empty slot as the link channel of the mobile communication terminal that sends request.
For realizing top purpose, the radio base station apparatus of the present invention that is connected to mobile communication terminal and also can be connected to a public network through the wireless channel of TDMA-TDD system comprises: the communication time slot that is used for obtaining according to the information that sends from mobile communication terminal the necessary timeslot number N of communication that mobile communication terminal requires is counted checkout gear; Be used to be captured in the communication time slot acquisition equipment of the continuous N of same carrier wave empty slot as the link channel of the mobile communication terminal of having found to ask.
According to wireless communication system with top structure and radio base station apparatus, detect the necessary timeslot number N of communication according to the information that sends from the mobile communication terminal that will begin to communicate by letter, catch N continuous on an identical carrier wave empty slot then and come executive communication.
Therefore, when using a plurality of time slots to carry out high-speed data communication, use N continuous slot on same carrier wave.Therefore, needn't carry out the control of complicated switching time slot.Under the situation that does not increase load on the controlled in wireless part of radio base station apparatus, can realize high-speed data communication.
In wireless communication system according to the present invention and radio base station apparatus, the communication time slot composite set is provided, when identical carrier wave does not appear at continuous N empty slot, is used for by an empty slot being distributed to N the continuous empty slot of mobile communication terminal combination having set up a communication link and just communicated and the running of definite link channel.
On have in the wireless communication system and radio base station apparatus of structure, even N do not occur at the continuous empty slot of same carrier wave, an empty slot is distributed to another mobile communication terminal of just communicating and N continuous empty slot made up in the running of definite link channel.Therefore, catch N the continuous empty slot that appears on the same carrier wave and carry out data communication.
Therefore, according to wireless communication system with top structure and radio base station apparatus, even N continuous empty slot do not occur, N continuous empty slot of combination is so that allow to carry out high-speed data communication under the situation of the controlled in wireless part load that does not increase radio base station apparatus.
Further, in wireless communication system according to the present invention and radio base station apparatus, if do not occur N at the continuous empty slot of same carrier wave, the communication time slot composite set detects has the sequence of time slots of continuous (N-1) individual empty slot at same carrier wave, one empty slot is assigned to the mobile communication terminal that communicates by a use time slot adjacent with top sequence of time slots, and N continuous empty slot made up in definite running.
Therefore, on have in the wireless communication system and radio base station apparatus of structure, even when the continuous empty slot of N not occurring, can make up N continuous empty slot soon and under the situation of the controlled in wireless part load that does not increase radio base station apparatus, can carry out high-speed data communication.
Further, in the present invention, communication time slot is counted checkout gear can be according to being included in the necessary timeslot number N of communication that the information that is used for asking setting up control signal link channel and that send from mobile communication terminal obtains the mobile communication terminal request.
In addition, in the present invention, communication time slot is counted checkout gear can be according to the communication speed information from the information that mobile communication terminal sends of the being included in necessary timeslot number N that obtains communicating by letter.
Further, in the present invention, communication time slot is counted checkout gear can detect the timeslot number information that is included in from the information that mobile communication terminal sends as the necessary timeslot number N of communication.
To enumerate other purposes of the present invention and advantage in the following description, a part wherein will become apparent by describing, and perhaps can understand by practice of the present invention.The equipment and the combination that particularly point out by appended claims can realize and obtain objects and advantages of the present invention.
Incorporate and constitute the accompanying drawing of a specification part into, will be used for explaining basic principle of the present invention with general description that provides above and detailed description of preferred embodiment given below the description that the preferred embodiments of the present invention are carried out.
Fig. 1 is the circuit diagram of expression according to the example structure of a PHS base station apparatus of the present invention;
Fig. 2 is the process chart that two continuous empty slots are caught in explanation;
Fig. 3 is the schematic diagram of explanation communication time slot state exchange when catching two continuous empty slots;
Fig. 4 is the schematic diagram of explanation communication time slot state exchange when catching two continuous empty slots;
Fig. 5 is the process chart that is used to illustrate two continuous empty slots of combination;
Fig. 6 is the schematic diagram that is used to illustrate the state exchange of communication time slot when the continuous empty slot of two of combinations;
Fig. 7 is the schematic diagram that is used to illustrate the state exchange of communication time slot when the continuous empty slot of two of combinations;
Fig. 8 is the information format schematic diagram that the link channel of expression PHS is set up information;
Fig. 9 is used for illustrating being included in the schematic diagram that link channel shown in Figure 8 is set up the LCH type information unit of information; With
Figure 10 is the communication time slot structure chart that is used to illustrate the multiplexed multicarrier TDMA-TDD of 4 channels system.
An embodiment according to the wireless base station of wireless communication system of the present invention will be described with reference to the accompanying drawings now.In the following description, as an example with a PHS wireless base station.
Fig. 1 is the circuit block diagram of expression PHS base station apparatus structure.As shown in Figure 1, the PHS base station apparatus comprises the wireless portion 1 with antenna 11, modem portion 2, TDMA part 3, freely adapt to differential PCM code converter (hereinafter simply being called ADPCM-TRANSCODER) 4, I '-line interface part (hereinafter simply being called the I/F part) 5 and control section 6.
Receive the radiofrequency signal that sends through the wireless communication channel from a phs terminal (not shown) by antenna 11, then its high frequency sky through wireless portion 1 is closed (SW) I2 input receiver part 13.
At receiver section 13, the radiofrequency signal of reception is with the reception local oscillation signal mixing that produces from synthesizer 14 and be converted to receiving intermediate frequency signal.The local oscillation signal that control section 6 produces from synthesizer 14 according to the radio-frequency channel regulation.
Further, at wireless portion 1, provide a received electric field strength test section (RSSI) 16.In received electric field strength test section 16, detection is notified control section 6 from the received electric field strength of the radiofrequency signal of phs terminal transmission and with detected value.
From the demodulation part 21 of the receiving intermediate frequency signal incoming modem part 2 of receiver section 13 output, in the demodulation part 21, carry out the digital demodulation of receiving intermediate frequency signal so that regenerate an ADPUM signal.
In the TDMA of TDMA part 3 decoded portion 31, according to the ADPCM signal input ADPCM-TRANSCODER4 that is defined as each time slot dividing ADPCM signal and will cuts apart of control section 6.
4 pairs of ADPCM signal encodings of ADPCM-code converter, generation can be through the PCM signal of I ' circuit transmission.The PCM signal is transferred to the common line (not shown) through I/F part 5 and I ' circuit.
On the other hand, import ADPCM-code converters 4 from the PCM signal of common line through I/F part 5 through I ' circuit.ADPCM-code converter 4 coding PCM signals produce the ADPCM signal.
I/F part 5 receives from the PCM signal of I ' circuit and from sending same signal here.It also receives control signal to I ' circuit and from sending same signal here.At control circuit 6 processing control signals.
In TDMA encoder section 32, insert the time slot and multiplexed, the multiplexed ADPCM signal input modulator part 22 of requirement from the ADPCM signal of ADPCM-TRANSCOOER4 output.
In modulator part 22, carrier signal is carried out digital modulation and institute's modulated carrier signal input transmitter section 15 according to the ADPCM signal.
At transmitter section 15, modulated carrier signal is with the transmission local oscillation signal mixing that produces from synthesizer 14 and obtain the radio-frequency channel frequency of frequency inverted for being determined by control section 6 thus, and then, this signal is amplified to default transmission power level.Then, the radiofrequency signal from transmitter section 15 outputs sends to phs terminal from antenna 11 through HF switch 12.
Except that above-mentioned control with the general controlled function that is used to send and receive, control section 6 also has, and for example a microcomputer is as the master control part, and also has communication time slot and count the test section, and communication time slot is caught part and communication time slot built-up section.
Communication time slot is counted the test section and is obtained the necessary communication time slot of data communication from the information in the transmission signals of phs terminal and count N according to being included in.
As an example of top transmission signal, for example, provide the link channel of the RCR STD-28 standard (ARIB STANDARD) of a cordless telephone generation 2 system (personal mobile phone telephone system) to set up information, as shown in Figure 8.It is to set up the control signal of link channel and comprise LCH (link channel) type conduct information unit wherein from the phs terminal request that link channel is set up information.
As shown in Figure 9, because the LCH type is used for for example sending expression, the information of communication speed, the part of LCH type can and can operation communication timeslot number test section obtain the necessary communication time slot of data communication according to information bit as the information bit of specified data communication speed or bit and count N.
Communication time slot is caught part and is detected and be captured in the continuous N of a same carrier wave empty slot.
When N not occurring continuously during empty slot, the communication time slot built-up section makes up N empty slot continuously by an empty slot being assigned to set up a communication link and a phs terminal that communicates and determine under the control of PHS base station apparatus as the running of the communication time slot of communication channel.
Detect the communication time slot of the target that is defined as turning round according to default algorithm.An example as this algorithm, the method of using is at first to detect the sequence of time slots that has continuously (N-1) individual empty slot at same carrier wave, utilizes a communication time slot adjacent with top sequence of time slots that one empty slot is assigned to a mobile communication terminal that is just communicating and determines running so that make up N continuous empty slot.
Below, explain the operation of PHS base station apparatus with top structure.In the explanation below, the data communication of 64 kilobits/second is described, promptly uses two time slots to carry out the situation of data communication as an example.
Fig. 2 is the process chart that continuous empty slot is caught in explanation.When the PHS base station apparatus receives (step 101) when comprising the link channel of information of carrying out the data communication of 64 kilobits/second from the expression of a phs terminal in the wireless zone and setting up request signal, communication time slot is counted the test section, and to detect data signaling rate according to the data signaling rate information in the top signal of being included in be 64 kilobits/second (step 102).
Then, it is that the fact of 64 kilobits/second obtains " 2 " and counts N (step 103) for necessary communication time slot according to communication speed that communication time slot is counted the test section, then carry out step 104.For example, when the data transmission bauds that detects was 32 kilobits/second or 96 kilobits/second, communication time slot was counted N and is made as " 1 " or " 3 " respectively.
In step 104, communication time slot is caught part and is caught an empty slot when the communication time slot that obtains in step 103 is counted N and is 1 (N=1), carries out general Speech Communication then and handles.In this example, use two time slots (64 kilobits/second), carry out step 105.
In step 105, communication time slot is caught part and is determined whether two continuous empty slots appear at identical carrier wave.For example, if detect continuous communication time slot A1 at carrier wave Λ, A2, as shown in Figure 3, with regard to execution in step 106.On the other hand, if do not detect two continuous empty slots (occur), just carry out the processing (step 200) of the continuous empty slot of combination that will be described in detail later as shown in Figure 6.
In step 106, communication time slot is caught to such an extent that partly catch communication time slot A1, A2, as shown in Figure 4.Then, in step 107, provide the communication time slot A1 that catches to the phs terminal that sends the wireless channel request of setting up, A2 is as the information of a link channel and finish allocation process.
On the other hand, if in a carrier wave, do not detect two continuous empty slots, just carry out the processing of the continuous empty slot of combination shown in Figure 5.
At first, in step 201, the communication time slot built-up section detects vacant time slot A 2 shown in Figure 6 according to preset algorithm and with the communication time slot A1 that is removed.Communication time slot A1 represents to be used as now a time slot of the communication link between base station and another phs terminal.
Then, in step 202, detect for the running destination an empty slot and carry out step 203.In this case, suppose the destination empty slot of communication time slot B4 that detects carrier wave B for turning round.
In step 203, will for the B4 time slot allocation of empty slot to the phs terminal of wherein setting up the communication time slot A1 of communication link by the PHS base station apparatus, determine the running of communication channel then.
If be proved identical carrier wave form two continuous empty slots (A1, A2) (step 204) are just carried out step 106 and are caught empty slot A1, A2, as shown in Figure 7.Then in step 107, set up the phs terminal of request and provide two communication time slots of catching as the information of a link channel and finish allocation process to sending wireless channel.
As mentioned above, on have in the PHS base station apparatus of structure, be assigned to phs terminal corresponding to N continuous communication time slot of the data signaling rate of phs terminal request and carry out data communication.
If this continuous communication time slot do not occur, the combination empty slot is formed on the continuous communication time slot of N on the same carrier wave and they is distributed to phs terminal.
Like this, according to the PHS base station apparatus with top structure, even when using a plurality of time slots to carry out high-speed data communication, under the situation that does not produce complicated switching controls, control section 6 can allow data communication.
Further, because under the situation that does not produce complicated switching controls, use continuous communication time slot can carry out data communication, might save power supply, particularly for phs terminal one side.
The invention is not restricted to top embodiment.The communication time slot that also can be arranged on the up-to-date setting of PHS base station apparatus in the general control centre that controls a plurality of PHS base station apparatus through I '-circuit is counted the test section, and communication time slot is caught the function of part and communication time slot built-up section.
If this system of formation as described above just can determine the running of communication time slot for the communication time slot that different PHS base station apparatus uses, therefore just relatively be easy to form N continuous empty slot at identical carrier wave.
Further, the data of the time slot that uses in the expression data communication can directly send to the PHS base station apparatus from phs terminal.
Further, for example, under the situation that does not break away from technical scope of the present invention, can carry out various modifications to the algorithm relevant with the detection of definite communication time slot running.
Those skilled in the art can obtain other advantage at an easy rate and make amendment.Therefore, the invention is not restricted to shown in this paper in broad terms and the specific detail and the representational embodiment that describe with regard to it.Therefore, under the situation of spirit or scope of the general invention category that does not break away from the definition of appended claims book and equivalents thereof, can make various modifications to the present invention.
Claims (16)
1, a kind ofly comprise that the control by a master control station can be connected to a plurality of radio base station apparatus of a public network and be connected to the wireless communication system of a mobile communication terminal of wireless base station through the wireless channel of a TDMA-TDD system, comprising:
Communication time slot is counted checkout gear, is used for setting up according to the request that is included in the necessary timeslot number N of communication control signal and obtain the mobile communication terminal request from the information that mobile communication terminal sends of link channel;
The communication time slot acquisition equipment is used to be captured in the continuous N of identical carrier wave empty slot as the link channel that sends the mobile communication terminal of request; With
The communication time slot composite set, if N continuous empty slot do not occur, be used for setting up communication link and making up N continuous empty slot at the mobile communication terminal of executive communication and the running of definite link channel by an empty slot is assigned at identical carrier wave.
2, wireless communication system according to claim 1, wherein said communication time slot composite set detects when the continuous empty slot of N not occurring on same carrier wave has a time slot sequence of (N-1) individual empty slot continuously on same carrier wave, make up the individual continuous empty slot of N by using a time slot adjacent with top sequence of time slots that one empty slot is assigned to a mobile communication terminal of executive communication and determining that it turns round.
3, wireless communication system according to claim 1, wherein said communication time slot are counted checkout gear according to the information that is included in the communication speed from the information that mobile communication terminal the sends necessary timeslot number N that obtains communicating by letter.
4, wireless communication system according to claim 1, wherein said communication time slot are counted checkout gear and are obtained being included in timeslot number information from the information that mobile communication terminal sends as the necessary timeslot number N of communication.
5, a kind ofly comprise a plurality of radio base station apparatus that are operatively connected to a public network by a master control station and be connected to the wireless communication system of a mobile communication terminal of wireless base station, comprising through the wireless channel of a TDMA-TDD system:
Communication time slot is counted checkout gear, is used for obtaining according to the information that sends from mobile communication terminal the necessary timeslot number N of communication of mobile communication terminal request; With
The communication time slot acquisition equipment is used to be captured in the continuous N of identical carrier wave empty slot as the link channel that sends the mobile communication terminal of request.
6, wireless communication system according to claim 5, also comprise the communication time slot composite set, if a continuous N empty slot do not occur at same carrier wave, this device makes up the individual continuous empty slot of N by an empty slot being assigned to a mobile communication terminal of setting up communication link and executive communication and the running of determining link channel.
7, wireless communication system according to claim 6, wherein described communication time slot composite set detection has a time slot sequence of continuous (N-1) individual empty slot at same carrier wave when N continuous empty slot do not appear on the identical carrier wave, by using a time slot adjacent with top sequence of time slots the individual continuous empty slot of N is made up in a mobile communication terminal and definite running that one empty slot is assigned to executive communication.
8, wireless communication system according to claim 5, wherein said communication time slot are counted checkout gear and are set up the necessary timeslot number N of communication in the control signal wire of link channel and obtain the mobile communication terminal request from the information that mobile communication terminal sends according to the request that is included in.
9, wireless communication system according to claim 5, wherein said communication time slot are counted checkout gear according to the communication speed information from the information that mobile communication terminal sends of the being included in necessary timeslot number N that obtains communicating by letter.
10, wireless communication system according to claim 5, wherein said communication time slot are counted checkout gear and are obtained being included in timeslot number information from the information that mobile communication terminal sends as the necessary timeslot number N of communication.
11, a kind of wireless channel through the TDMA-TDD system is connected to the radio base station apparatus that a mobile communication terminal also can be connected to a public network, comprising:
Communication time slot is counted checkout gear, is used for obtaining according to the information that sends from mobile communication terminal the necessary timeslot number N of communication of mobile communication terminal request; With
The communication time slot acquisition equipment is used to be captured in the continuous N of identical carrier wave empty slot as the link channel that sends the mobile communication terminal of request.
12, radio base station apparatus according to claim 11, also comprise the communication time slot composite set, if a continuous N empty slot does not appear in identical carrier wave, this device makes up N continuous empty slot by the running that an empty slot is assigned to the also definite link channel of mobile communication terminal of setting up a communication link and positive executive communication.
13, radio base station apparatus according to claim 12, wherein described communication time slot composite set detects and has the sequence of time slots of continuous (N-1) individual empty slot at identical carrier wave when not occurring the continuous empty slot of N on the identical carrier wave, by using a time slot adjacent with top sequence of time slots that one empty slot is assigned to a mobile communication terminal of executive communication and determining that running makes up the individual continuous empty slot of N.
14, radio base station apparatus according to claim 11, wherein said communication time slot are counted checkout gear and are set up information in the control signal of link channel and that send from mobile communication terminal according to the request that is included in and obtain the necessary timeslot number N of communication that mobile communication terminal is asked.
15, radio base station apparatus according to claim 11, wherein said communication time slot are counted checkout gear according to the information that is included in the communication speed from the information that mobile communication terminal the sends necessary timeslot number N that obtains communicating by letter.
16, radio base station apparatus according to claim 11, wherein said communication time slot are counted checkout gear and are obtained being included in timeslot number information from the information that mobile communication terminal sends as the necessary timeslot number N of communication.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP76194/96 | 1996-03-29 | ||
| JP8076194A JPH09270763A (en) | 1996-03-29 | 1996-03-29 | Radio communication system and radio base station equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1166763A true CN1166763A (en) | 1997-12-03 |
Family
ID=13598342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97111670.9A Pending CN1166763A (en) | 1996-03-29 | 1997-03-27 | Radio communication system and radio base station apparatus |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH09270763A (en) |
| CN (1) | CN1166763A (en) |
| AU (1) | AU683608B1 (en) |
| DE (1) | DE19713164A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355298C (en) * | 1998-09-07 | 2007-12-12 | 松下电器产业株式会社 | Communication terminal apparatus, base station communication apparatus and radio communication method |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI109399B (en) | 1998-01-05 | 2002-07-15 | Nokia Corp | A method of allocating communication channels between a base station system and a mobile switching center |
| DE19908424C2 (en) * | 1999-02-26 | 2001-01-25 | Siemens Ag | Method for controlling the division of transmission rates in a cellular radio telecommunication system |
| DE19913086A1 (en) * | 1999-03-23 | 2000-10-19 | Siemens Ag | Method and device for channel allocation for broadband radio transmission |
| DE19932455A1 (en) * | 1999-07-12 | 2001-04-05 | Siemens Ag | Transmission structure update and/or adjustment in communication system |
| JP4704876B2 (en) * | 2005-09-28 | 2011-06-22 | 京セラ株式会社 | Base station apparatus, communication start restriction method, and program |
| JP4555205B2 (en) * | 2005-09-28 | 2010-09-29 | 京セラ株式会社 | Mobile communication system, mobile station apparatus, and base station apparatus selection method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH048046A (en) * | 1990-04-26 | 1992-01-13 | Fujitsu Ltd | Method and apparatus for idle channel retrieval in system cordless telephone set |
| US5375163A (en) * | 1991-04-25 | 1994-12-20 | Matsushita Electric Industrial Co., Ltd. | Multi-channel cordless telephone system for maintaining master-slave communication |
-
1996
- 1996-03-29 JP JP8076194A patent/JPH09270763A/en active Pending
-
1997
- 1997-03-24 AU AU16487/97A patent/AU683608B1/en not_active Ceased
- 1997-03-27 CN CN97111670.9A patent/CN1166763A/en active Pending
- 1997-03-27 DE DE19713164A patent/DE19713164A1/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355298C (en) * | 1998-09-07 | 2007-12-12 | 松下电器产业株式会社 | Communication terminal apparatus, base station communication apparatus and radio communication method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09270763A (en) | 1997-10-14 |
| AU683608B1 (en) | 1997-11-13 |
| DE19713164A1 (en) | 1997-11-06 |
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