CN1168606A - Method for transmitting paging signal simultaneously in paging system - Google Patents
Method for transmitting paging signal simultaneously in paging system Download PDFInfo
- Publication number
- CN1168606A CN1168606A CN97110207A CN97110207A CN1168606A CN 1168606 A CN1168606 A CN 1168606A CN 97110207 A CN97110207 A CN 97110207A CN 97110207 A CN97110207 A CN 97110207A CN 1168606 A CN1168606 A CN 1168606A
- Authority
- CN
- China
- Prior art keywords
- signal
- paging
- base station
- call terminal
- paging signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/02—Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Disclosed is a method for simultaneously transmitting calling signal in a calling system which comprises a calling terminal, a plurality of base stations connected with the calling terminal, and a device for continuously providing fixed period synchronization pulse to the calling terminal and the base stations. The method comprises following steps: the calling signal is transmitted to the base stations by the calling terminal, the calling signal is stored by the base stations, transmission interrupt signal is generated to the base stations by the calling terminal after the calling terminal transmits the calling signal and then receives the synchronization pulse, and the base stations are synchronized with the synchronization signal to transmit the stored simultaneously calling signal after the transmission interrupt signal is received.
Description
The present invention relates to paging system, more particularly, relate to a kind of method of utilizing global positioning system (GPS) receiver to transmit paging signal simultaneously from a plurality of base stations.
Usually, paging system is called out with radio.The base station of radio call signal a certain network element of appointment from the paging network plane graph is sent to the beep-pager of corresponding area.Paging signal is sent to all base stations and calls out, and these base stations then send out paging signal simultaneously in case beep-pager receives a plurality of same signals in overlapping area, a plurality of base stations.So all base stations send out paging signal simultaneously.
Referring to Fig. 1.Call terminal 110 is connected with the T1/E1 circuit, sends signal to No. 1, No. 2, N paging circuit from main line by coding.The signal that transmits from call terminal 110 comprises function sound, protection sound and paging data.Base station #1112, #2114 and #N116 are by carrying out radio call through the transmission line received signal.After the time that base station 112,114 and 116 sends a plurality of signals in each base station of compensation and the time difference of the time of the signal that detects pager terminal 110 with its sender transmission radiofrequency signal.The time of transmission is simultaneously set by the transmission time of calculating from call terminal to each base station in each base station.
Transmission time of 112 is 500 microseconds to the base station if signal is from call terminal 110, another time of 114 is 1000 microseconds to the base station and from pager terminal 110, then base station 112 sends radiofrequency signal in 500 microseconds after the time interval, and base station 114 also sends radiofrequency signal without delay simultaneously.Like this, beep-pager is just correctly received the call data from call terminal 110.Beep-pager has only time difference of sending signal at the same time o'clock could correctly receive radiofrequency signal less than transmission rate/4.
The purpose of this invention is to provide a kind of method that transmits paging signal in the paging system simultaneously, set the time of transmitting simultaneously according to the synchronization pulse that the GPS receiver produces.
The method that transmits paging signal simultaneously provided by the invention is used in a kind of like this paging system, this paging system has a call terminal, a plurality of base stations link to each other with this call terminal, also has a synchronization pulse feeding mechanism, for the synchronization pulse of being provided to call terminal and each base station the fixed cycle continuously, this method comprises the following steps: to send paging signal for each base station by call terminal; The base station stores paging signal; Produce the transmission interrupt signal to each base station when impelling call terminal after sending paging signal, to receive synchronization pulse; Impel again each base station receive transmission during interrupt signal with synchronizing signal synchronously so that send the paging signal of originally storing simultaneously.
Explain content of the present invention below.Read the be not difficult various advantages more fully understanding the present invention and follow of following detailed description in conjunction with the accompanying drawings.In the accompanying drawing, the same or similar elements of same numbering and symbolic representation, wherein:
Fig. 1 is the block diagram of conventional paging system;
Fig. 2 is the block diagram of paging system of the present invention;
Fig. 3 is per second 1 impulse waveform that the GPS receiver among Fig. 2 produces;
Fig. 4 is the control flow chart of call terminal of the present invention;
Fig. 5 is the control flow chart of a base station of the present invention;
Referring to Fig. 2.Call terminal 110 is connected with T1/E1 by transmission line and is connected with base station 114.Call terminal 110 is connected with GPS receiver 222 with GPS receiver 212 respectively with base station 114.The GPS receiver is to utilize navigation satellite to determine or derive the system of moving object position, is that the phase difference of the reflected wave by calculating many radio waves from navigation satellite is realized its positioning function.
In call terminal 110, input processor 214 (hereinafter to be referred as IP) is supporting with the T1/^E1 circuit.Paging processor 216 (hereinafter to be referred as the CPP) of central authorities storage pager carrier's database, and by determining with reference to described database whether the call signal from IP214 is user's call signal.Network radio hookup controller 218 (hereinafter to be referred as NSC) is connected with CPP216, paging signal is converted to the code (POSAG, GOLAY NEC etc.) of regulation.NSC218 receives the synchronization pulse from GPS receiver 212.Synchronization pulse is to be per second 1 pulse signal in the cycle.Circuit switched module 220 (hereinafter to be referred as LSM) will send all base stations from the input signal of NSC218 to, and will send NSC218 to from all signal of base station.
In base station 114, interface arrangement 224 is supporting with call terminal 110, is connected with LSM220.The data that memory 228 storage controls 226 send, 230 in sender converts paging signal to radiofrequency signal under the control of controller 226.GPS receiver 222 sends the synchronization pulse of per second 1 pulse for the controller 226 of base station 114.Controller 226 receives and sends various control signals together with NSC218.
Referring to Fig. 3, synchronized with each other from 1 pulse/sec clock pulse of each GPS receiver 212 and 222.Two instantaneous points of A and B respectively with instantaneous point A ' and B ' accurate synchronization.
Referring to Fig. 4, thereby IP214 detects to send to CPP216 from calling party's input registration assistant-searching catchword and is called out the numbers and relevant information.CPP216 is at the head sign indicating number and relevant information that confirm to send to NSC218 after certain database from the information stores of IP214 relevant ringing number.NSC218 receives information from CPP216 in step 410, and in step 411 it is encoded.In step 412, NCS218 sends paging signal to LSM220, by LSM220 paging signal is sent to each base station.Transmit after the paging signal first forward position (A point) that NSC218 occurs in step 413 detects from GSP receiver 2121 pulse/sec signal waves.If the forward position at A point place in action, NSC218 just sends the transmission interrupt signal for each base station by LSM220.
Referring to Fig. 5, the controller 226 of base station 114 deposits paging signal in the memory 228 (RAM) in step 511 at the paging signal of step 510 reception from NSC218.Then controller 226 examines whether receive the transmission interrupt signal from call terminal 110 in step 512.Receive after the transmission interrupt signal whether controller 226 first forward position (B ' point) occurs in the 1 pulse/sec signal wave of step 513 detection from GPS receiver 222.If be added with the forward position at B ', controller 226 sends the paging signal that is stored in the memory 228 just for sender 230.Sender 230 converts the paging signal of receiving to radiofrequency signal, and each base station sends paging signal simultaneously at the B point.
Like this, the invention provides adjustment sends paging signal simultaneously from each base station synchronization time method, be about to GPS receiver 212 and 222, call terminal 110 and base station 114 and be joined to one another, be used to send simultaneously from each base station the synchronization time of paging signal from the pulse/sec signal adjustment of GPS receiver 212 and 222.
Transmission system in the time of with routine is owing to calculate the mistake that occurs in the transmission time, thereby can only carry out the paging service of 1200 bps scopes.
The present invention can carry out the paging service of 2400 bps, 4800 bps and 6400 bps, thereby uses the method for transmitting simultaneously from 1 pulse/sec clock pulse of GPS receiver to guarantee that paging service carries out at a high speed, and improves the quality of paging service.
Claims (6)
1. transmit a kind of method of paging signal in the paging system simultaneously, this paging system has a call terminal, a plurality of base stations are connected with described call terminal, also have one the device of the synchronization pulse of fixed cycle to be provided for continuously described call terminal and each base station, described method comprises the following steps:
Send paging signal for described each base station by described call terminal;
Described each base station stores described paging signal;
Produce the transmission interrupt signal to described each base station when making described call terminal after sending paging signal, receive synchronization pulse;
Make described each base station when receiving described transmission interrupt signal and described synchronizing signal synchronously so that send the paging signal of described storage simultaneously.
2. the method that transmits paging signal simultaneously as claimed in claim 1 is characterized in that, described synchronization pulse is that the cycle that global positioning system (GPS) produces is the signal of 1 pulse/sec (PPS).
3. transmit the method for paging signal in the paging system simultaneously, this paging system has a fixed cycle synchronization pulse generating means, a call terminal and a plurality of base station, each base station is connected with described call terminal, so that send described paging signal simultaneously according to described synchronization pulse when receiving the transmission interrupt signal, described method comprises the following steps: for the storage paging signal that sends of described call terminal
The paging signal that sends described each base station to that uses is encoded;
Produce the transmission interrupt signal when receiving described synchronization pulse, for described each base station.
4. the method that transmits paging signal simultaneously as claimed in claim 3 is characterized in that, described synchronizing signal is that the cycle that GPS produces is the signal of 1 pulse/sec.
5. transmit a kind of method of paging signal in the paging system simultaneously, this paging system has a fixed cycle synchronization pulse generating means, a call terminal and a plurality of base station, call terminal is in order to send paging signal together with the transmission interrupt signal that produces according to described synchronization pulse, described a plurality of base station is connected with described call terminal, and described method comprises the following steps:
Store described paging signal;
Take out the paging signal of described storage when receiving described transmission interrupt signal; With
Send the paging signal of described taking-up according to described synchronization pulse.
6. the method that transmits paging signal simultaneously as claimed in claim 5 is characterized in that, described synchronization pulse is the 1 pulse/sec signal that GPS produces.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960008642A KR970068230A (en) | 1996-03-27 | 1996-03-27 | Simultaneous transmission of paging call in paging system |
| KR8642/96 | 1996-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1168606A true CN1168606A (en) | 1997-12-24 |
Family
ID=19454170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97110207A Pending CN1168606A (en) | 1996-03-27 | 1997-03-27 | Method for transmitting paging signal simultaneously in paging system |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR970068230A (en) |
| CN (1) | CN1168606A (en) |
| RU (1) | RU2134487C1 (en) |
-
1996
- 1996-03-27 KR KR1019960008642A patent/KR970068230A/en not_active Application Discontinuation
-
1997
- 1997-03-26 RU RU97104774A patent/RU2134487C1/en not_active IP Right Cessation
- 1997-03-27 CN CN97110207A patent/CN1168606A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| KR970068230A (en) | 1997-10-13 |
| RU2134487C1 (en) | 1999-08-10 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |