CN102946572A - Wireless interphone signal transmission method based on transfer platform - Google Patents
Wireless interphone signal transmission method based on transfer platform Download PDFInfo
- Publication number
- CN102946572A CN102946572A CN2012103825558A CN201210382555A CN102946572A CN 102946572 A CN102946572 A CN 102946572A CN 2012103825558 A CN2012103825558 A CN 2012103825558A CN 201210382555 A CN201210382555 A CN 201210382555A CN 102946572 A CN102946572 A CN 102946572A
- Authority
- CN
- China
- Prior art keywords
- time slot
- signal
- intermediate station
- carrier frequency
- bits
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000008054 signal transmission Effects 0.000 title abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000011664 signaling Effects 0.000 claims description 9
- 230000005236 sound signal Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Images
Landscapes
- Time-Division Multiplex Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a wireless interphone signal transmission method based on a transfer platform, which comprises the following steps: (1) transmission is carried out with a burst frame as a base unit, wherein each burst frame occupies one carrier frequency; (2) a transmitting terminal transmits signals to the transfer platform and a receiving terminal at the time slot Slot1 of the carrier frequency, and simultaneously the receiving terminal receives the signal directly transmitted by the transmitting terminal; (3) the transfer platform receives signals at the time slot Slot2 of the carrier frequency and forwards the signals at the time slot Slot1 of the carrier frequency; (4) the receiving terminal receives the signals forwarded by the transfer platform at the time slot Slot2 of the carrier frequency and carries out preferential processing on the signals received at the time slot Slot1 and the time slot Slot2, so that a transmission cycle is completed after processing; and (5) next burst frame is started to transmit, and the step (2) is performed until all the signals are transmitted. Through the adoption of the method, the communication distance can be increased, the coverage range is expanded, the communication blind spots are reduced, and co-frequency forwarded signal transmission can be realized.
Description
Technical field
The present invention relates to a kind of method for transmitting signals, especially a kind of wireless interspeaker method for transmitting signals that is based on intermediate station.Belong to wireless communication technology field.
Background technology
Along with developing rapidly of information technology, human society has strided forward a flourish information age, and radio communication is used very extensively in modern society, especially the communication technology of wireless interspeaker, the terminal equipment that some multiple spot is communicated that it can use in movement can exchange many people each other, hear simultaneously speaking of same person, therefore, in the every field such as traffic, transportation, building, property, security personnel and government bodies, all be widely used.
But in wireless interspeaker, usually use the air interface protocol standards such as DMR, DPMR, PPT to carry out the signal transmission, usually there is the communication blind spot in use procedure, can't realize automatic call forwarding, for example in area with a varied topography, that shielding is serious, because the diffracting power of terminal is limited, causes communication distance to be restricted, and can not satisfy well the forwarding capability of intercom.Therefore, present digital handset on the market begins to adopt intermediate station to transmit, but only can realize the alien frequencies forwarding, causes intermediate station need to take too much frequency.
Summary of the invention
Purpose of the present invention is in order to solve the defective of above-mentioned prior art, provides a kind of and can increase communication distance, extended coverage range and the minimizing blind spot of communicating by letter, and can realize the wireless interspeaker method for transmitting signals based on intermediate station transmitted with frequently.
Purpose of the present invention can reach by taking following technical scheme:
Wireless interspeaker method for transmitting signals based on intermediate station is characterized in that may further comprise the steps:
1) transmit take burst frame as base unit, each burst frame takies a carrier frequency, and this carrier frequency comprises time slot Slot1 and time slot Slot2;
2) launch terminal transmits to intermediate station and receiving terminal at the time slot Slot1 of carrier frequency, and receiving terminal receives the signal that launch terminal is directly launched simultaneously;
3) intermediate station receives signal at the time slot Slot2 of carrier frequency, after accepting state switches to forwarding state, at the time slot Slot1 of carrier frequency signal is forwarded;
4) receiving terminal receives the signal that intermediate station is transmitted at the time slot Slot2 of carrier frequency, then the signal of time slot Slot1 and time slot Slot2 reception is preferentially processed, and finishes a transmission cycle after the processing;
5) next burst frame begins transmission, returns step 2), until the whole end of transmissions of signal.
As a kind of preferred version, described receiving terminal has one or more.
As a kind of preferred version, described intermediate station comprises receiver and sender.
As a kind of preferred version, the signal that described receiver receives is modulated radiofrequency signal, and then the signal of sender emission is the audio signal after the demodulation; The signal that described receiver receives is unmodulated audio signal, and then the signal of sender emission is the radiofrequency signal after modulating.
As a kind of preferred version, be provided with the protection time slot between described time slot Slot1 and the time slot Slot2, in whole protection time slot, receive/transmit switching.
As a kind of preferred version, in the payload district of described each burst frame, insert a frame alignment word FS, burst frame of every transmission is set up frame synchronization one time.
As a kind of preferred version, a channel associated signalling territory CCF is set respectively on the both sides of described frame alignment word FS.
As a kind of preferred version, described frame alignment word FS and two channel associated signalling territory CCF are divided into two symmetrical zones with the payload zone.
As a kind of preferred version, described protection time slot is divided into two sections, is separately positioned on the one side in each payload district.
As a kind of preferred version, described frame alignment word FS takies 48 bits, and duration is 5ms; Each channel associated signalling territory CCF takies 12 bits, takies altogether 24 bits, and duration is 2.5ms; Each payload zone takies 144 bits, takies altogether 288 bits, and duration is 30ms; Protect every section of time slot to take 12 bits, take altogether 24 bits, duration is 2.5ms; Whole burst frame takies 384 bits altogether, and its total duration is 40ms.
The present invention has following beneficial effect with respect to prior art:
1, the present invention adopts intermediate station BS that modulated radiofrequency signal is demodulated audio signal, and the audio signal that miscellaneous equipment can also be sent here is launched after rf modulations, is conducive to the transmission between the terminal.
2, the present invention is by adopting the signal transmission of intermediate station BS forwarding, the air interface protocol standards such as DMR, DPMR, PPT in the prior art of not only having solved can not satisfy the defective of the forwarding capability of intercom well, and can increase communication distance, extended coverage range and the minimizing blind spot of communicating by letter, the final realization with the signal transmission of frequently transmitting.
Description of drawings
Fig. 1 is signal transmission schematic diagram of the present invention.
Fig. 2 is the signal transmission schematic diagram of the present invention in a carrier frequency.
Fig. 3 is burst frame structural representation of the present invention.
Embodiment
Embodiment 1:
As depicted in figs. 1 and 2, the method for transmitting signals of present embodiment may further comprise the steps:
1) transmit take burst frame as base unit, each burst frame takies a carrier frequency, and this carrier frequency comprises time slot Slot1 and time slot Slot2.
2) launch terminal MS1 transmits to intermediate station BS and receiving terminal MS2 at the time slot Slot1 of carrier frequency, and receiving terminal MS2, MS3, MS4 receive the signal that launch terminal MS1 directly launches simultaneously;
3) intermediate station BS receives signal at the time slot Slot2 of carrier frequency, after accepting state switches to forwarding state, at the time slot Slot1 of carrier frequency signal is forwarded;
4) receiving terminal MS2, MS3, MS4 receive the signal that intermediate station BS transmits at the time slot Slot2 of carrier frequency, then the signal of time slot Slot1 and time slot Slot2 reception is preferentially processed, receiving terminal MS2 time slot Slot1 receive signal that launch terminal MS1 directly launches a little less than (shown in Fig. 2 dotted line), therefore, select only to receive the signal that intermediate station BS transmits at Slot2; Receiving terminal MS3 receives signal that intermediate station BS transmits weak (shown in Fig. 2 dotted line) at time slot Slot2, therefore, selects only to receive the signal that launch terminal MS1 directly launches at Slot1; Receiving terminal MS4 is stronger at the signal of time slot Slot1 and time slot Slot2 reception, therefore, both receives the signal that launch terminal MS1 has directly launched at time slot Slot1, receives the signal that intermediate station BS transmits at time slot Slot2 again; Finish a transmission cycle after the processing;
5) next burst frame begins transmission, returns step 2), until the whole end of transmissions of signal.
Wherein, described intermediate station comprises receiver and sender, and the signal that described receiver receives is modulated radiofrequency signal, and then the signal of sender emission is the audio signal after the demodulation; The signal that described receiver receives is unmodulated audio signal, and then the signal of sender emission is the radiofrequency signal after modulating.Be provided with the protection time slot between described time slot Slot1 and the time slot Slot2, in whole protection time slot, receive/transmit switching.
As shown in Figure 3, insert a frame alignment word FS in the payload district of each burst frame, burst frame of every transmission is set up frame synchronization one time, takies 48 bits, and duration is 5ms; On the both sides of described frame alignment word FS a channel associated signalling territory CCF is set respectively, each channel associated signalling territory CCF takies 12 bits, takies altogether 24 bits, and duration is 2.5ms; Described frame alignment word FS and two channel associated signalling territory CCF are divided into two symmetrical zones with the payload zone, and each payload zone takies 144 bits, takies altogether 288 bits, and duration is 30ms; Described protection time slot is divided into two sections, is separately positioned on the one side in each payload district, and every section takies 12 bits, takies altogether 24 bits, and duration is 2.5ms; Whole burst frame takies 384 bits altogether, and its total duration is 40ms.
The above; it only is the preferred embodiment of the invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in scope disclosed in this invention; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all belonged to protection scope of the present invention.
Claims (10)
1. based on the wireless interspeaker method for transmitting signals of intermediate station, it is characterized in that may further comprise the steps:
1) transmit take burst frame as base unit, each burst frame takies a carrier frequency, and this carrier frequency comprises time slot Slot1 and time slot Slot2;
2) launch terminal transmits to intermediate station and receiving terminal at the time slot Slot1 of carrier frequency, and receiving terminal receives the signal that launch terminal is directly launched simultaneously;
3) intermediate station receives signal at the time slot Slot2 of carrier frequency, after accepting state switches to forwarding state, at the time slot Slot1 of carrier frequency signal is forwarded;
4) receiving terminal receives the signal that intermediate station is transmitted at the time slot Slot2 of carrier frequency, then the signal of time slot Slot1 and time slot Slot2 reception is preferentially processed, and finishes a transmission cycle after the processing;
5) next burst frame begins transmission, returns step 2), until the whole end of transmissions of signal.
2. the wireless interspeaker method for transmitting signals based on intermediate station according to claim 1, it is characterized in that: described receiving terminal has one or more.
3. the wireless interspeaker method for transmitting signals based on intermediate station according to claim 1, it is characterized in that: described intermediate station comprises receiver and sender.
4. the wireless interspeaker method for transmitting signals based on intermediate station according to claim 3 is characterized in that: the signal that described receiver receives is modulated radiofrequency signal, and then the signal of sender emission is the audio signal after the demodulation; The signal that described receiver receives is unmodulated audio signal, and then the signal of sender emission is the radiofrequency signal after modulating.
5. each described wireless interspeaker method for transmitting signals based on intermediate station is characterized in that: be provided with the protection time slot between described time slot Slot1 and the time slot Slot2, receive/transmit switching in whole protection time slot according to claim 1-4.
6. the wireless interspeaker method for transmitting signals based on intermediate station according to claim 5 is characterized in that: insert a frame alignment word FS in the payload district of described each burst frame, burst frame of every transmission is set up frame synchronization one time.
7. the wireless interspeaker method for transmitting signals based on intermediate station according to claim 6 is characterized in that: a channel associated signalling territory CCF respectively is set on the both sides of described frame alignment word FS.
8. the wireless interspeaker method for transmitting signals based on intermediate station according to claim 7, it is characterized in that: described frame alignment word FS and two channel associated signalling territory CCF are divided into two symmetrical zones with the payload zone.
9. the wireless interspeaker method for transmitting signals based on intermediate station according to claim 8, it is characterized in that: described protection time slot is divided into two sections, is separately positioned on the one side in each payload district.
10. the wireless interspeaker method for transmitting signals based on intermediate station according to claim 9, it is characterized in that: described frame alignment word FS takies 48 bits, and duration is 5ms; Each channel associated signalling territory CCF takies 12 bits, takies altogether 24 bits, and duration is 2.5ms; Each payload zone takies 144 bits, takies altogether 288 bits, and duration is 30ms; Protect every section of time slot to take 12 bits, take altogether 24 bits, duration is 2.5ms; Whole burst frame takies 384 bits altogether, and its total duration is 40ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103825558A CN102946572A (en) | 2012-10-10 | 2012-10-10 | Wireless interphone signal transmission method based on transfer platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103825558A CN102946572A (en) | 2012-10-10 | 2012-10-10 | Wireless interphone signal transmission method based on transfer platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102946572A true CN102946572A (en) | 2013-02-27 |
Family
ID=47729472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103825558A Pending CN102946572A (en) | 2012-10-10 | 2012-10-10 | Wireless interphone signal transmission method based on transfer platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102946572A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104683886A (en) * | 2013-11-27 | 2015-06-03 | 盟讯实业股份有限公司 | group two-way interphone system |
| CN106559756A (en) * | 2016-11-18 | 2017-04-05 | 广州海格通信集团股份有限公司 | A kind of mobile station, the communication system of intermediate station and network-building method |
| CN109151813A (en) * | 2018-09-12 | 2019-01-04 | 上海纳雅智能科技有限公司 | A kind of wireless internal call method and system |
| CN110351671A (en) * | 2019-08-07 | 2019-10-18 | 广州维德科技有限公司 | A kind of double frequency suitching type self-organized network communication method |
| CN115665681A (en) * | 2022-09-16 | 2023-01-31 | 上海大学 | A Wireless Transmission System of Digital Voice and Image in Tunnel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615945A (en) * | 2009-07-21 | 2009-12-30 | 深圳市保利天同通讯设备有限公司 | Digital same-frequency transfer method and system based on time division multiple access |
| CN101902807A (en) * | 2010-07-05 | 2010-12-01 | 海能达通信股份有限公司 | Terminal of digital mobile wireless transferring system, method for adjusting transmission power thereof and system thereof |
| CN101931500A (en) * | 2010-08-19 | 2010-12-29 | 优能通信科技（杭州）有限公司 | Method for transmitting reverse control signaling by using control channel in DMR system |
| CN101951702A (en) * | 2010-08-19 | 2011-01-19 | 浙江元亨通信技术有限公司 | Method for implementing simplex communication based on mobile phone terminal |
-
2012
- 2012-10-10 CN CN2012103825558A patent/CN102946572A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615945A (en) * | 2009-07-21 | 2009-12-30 | 深圳市保利天同通讯设备有限公司 | Digital same-frequency transfer method and system based on time division multiple access |
| CN101902807A (en) * | 2010-07-05 | 2010-12-01 | 海能达通信股份有限公司 | Terminal of digital mobile wireless transferring system, method for adjusting transmission power thereof and system thereof |
| CN101931500A (en) * | 2010-08-19 | 2010-12-29 | 优能通信科技（杭州）有限公司 | Method for transmitting reverse control signaling by using control channel in DMR system |
| CN101951702A (en) * | 2010-08-19 | 2011-01-19 | 浙江元亨通信技术有限公司 | Method for implementing simplex communication based on mobile phone terminal |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104683886A (en) * | 2013-11-27 | 2015-06-03 | 盟讯实业股份有限公司 | group two-way interphone system |
| CN104683886B (en) * | 2013-11-27 | 2018-06-12 | 盟讯实业股份有限公司 | Group two-way interphone system |
| CN106559756A (en) * | 2016-11-18 | 2017-04-05 | 广州海格通信集团股份有限公司 | A kind of mobile station, the communication system of intermediate station and network-building method |
| CN106559756B (en) * | 2016-11-18 | 2019-10-18 | 广州海格通信集团股份有限公司 | A kind of mobile station, the communication system of intermediate station and network-building method |
| CN109151813A (en) * | 2018-09-12 | 2019-01-04 | 上海纳雅智能科技有限公司 | A kind of wireless internal call method and system |
| CN110351671A (en) * | 2019-08-07 | 2019-10-18 | 广州维德科技有限公司 | A kind of double frequency suitching type self-organized network communication method |
| CN115665681A (en) * | 2022-09-16 | 2023-01-31 | 上海大学 | A Wireless Transmission System of Digital Voice and Image in Tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10652939B2 (en) | Method and apparatus for device-to-device communication | |
| EP2900002B1 (en) | Wireless communication device and wireless communication system | |
| RU2009132536A (en) | METHOD, SYSTEM, RELAY BROADCAST STATION AND BASIC STATION FOR TRANSMISSION OF DATA IN MOBILE COMMUNICATION | |
| WO2010134792A3 (en) | Information feedback method for coordinated multipoint communication | |
| WO2010067964A3 (en) | Method and system of radio frequency (rf) power transmission in a wireless network | |
| CA2344482A1 (en) | Method for robust handoff in wireless communication system | |
| JP2011512763A (en) | FDD in-band backhauling and method thereof | |
| CA2604847A1 (en) | Method and apparatus for management of multi-carrier communications in a wireless communication system | |
| GB9810424D0 (en) | Soft hand-off in cellular mobile communications networks | |
| WO2010093166A2 (en) | Operation of terminal for multi-antenna transmission | |
| ATE392056T1 (en) | METHOD FOR TRANSMITTING INFORMATION IN A MIMO RADIO COMMUNICATION SYSTEM AND RADIO COMMUNICATION SYSTEM | |
| US20090275333A1 (en) | Radio access network device and peripheral cell information report method | |
| CN111935653B (en) | Ad hoc network wireless intercom system and communication method | |
| CN102946572A (en) | Wireless interphone signal transmission method based on transfer platform | |
| WO2011025194A3 (en) | Method for transmitting frame in wireless communication system including relay station | |
| GB201104981D0 (en) | Mobile radio network, relay node and method | |
| CN101827356B (en) | Notice method and notice acquisition method and system of relay subframe configuration | |
| CN101719782A (en) | td-scdma wireless repeater | |
| CN106792776B (en) | A beam processing method and base station | |
| WO2010107238A3 (en) | Method and apparatus for the transmission and reception of downlink control signalling in mobile telecommunication system | |
| CN101651498B (en) | Repeater and method for removing pilot pollution by using same | |
| CN202026372U (en) | Mobile terminal | |
| US20110134772A1 (en) | Methods of radio communication involving multiple radio channels, and radio signal repeater and mobile station apparatuses implementing same | |
| CN105992217A (en) | Method and device for controlling time-division duplex repeater, and time-division duplex repeater | |
| CN103220682A (en) | Antenna selection method and device in data transmission process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130227 |