CN102820896A - Device for preventing same frequency interference between communication modules - Google Patents
Device for preventing same frequency interference between communication modules Download PDFInfo
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- CN102820896A CN102820896A CN2012103320074A CN201210332007A CN102820896A CN 102820896 A CN102820896 A CN 102820896A CN 2012103320074 A CN2012103320074 A CN 2012103320074A CN 201210332007 A CN201210332007 A CN 201210332007A CN 102820896 A CN102820896 A CN 102820896A
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Abstract
The invention relates to a device for preventing same frequency interference between communication modules. The device comprises a communication module A and a communication module B. The two communication modules are respectively connected with a transmitting antenna, the communication module A is connected with a radio frequency transmitting synchronous control circuit further connected with a radio frequency transmitting extraction circuit, the communication module B is connected with the radio frequency extraction circuit, and a synchronous time staggering optimizing module is connected with a radio frequency receiving and amplifying circuit through a same frequency interference judgment circuit. The device adopts the synchronous transmitting time staggering technology, utilizes one communication module transmission gap to insert transmitting signals of another communication module, ensures that the transmitting signals are not mutually interfered under the condition that the two communication modules are in the same frequency, well resolves the problem of same frequency interference, enables anti-interference effects to have no relation with frequency and has no special requirements for antenna distance.
Description
One, technical field
The present invention relates to mechanics of communication, particularly a kind of device that prevents co-channel interference between communication module.
Two, background technology
Present many portable terminals, like mobile phone, router etc.; Not only integrated telecommunication modules such as 3G/4G have also been integrated Near Field Communication modules such as WIFI, BT, and both work in very little space simultaneously; Frequency ratio near the zone, exist serious same frequency and disturb.Two kinds of methods commonly used at present reduce the degree of its interference; A kind of is the spatial separation technology, requires the antenna of two communication modules, isolates certain distance; Reach the reduction effects of jamming; This technology has higher requirement to the device interior space, and the height of its annoyance level is inversely proportional to the distance of distance, realizes for mini-plant is difficult; Another kind is the channel inhibition technology of generally using among the present WIFI; The channel that it can only disturb based on the same frequency of two WIFI equipment is selected to suppress; If certain WIFI choice of equipment N channel, another one WIFI equipment just uses the M channel, thereby avoids to a certain extent disturbing.If run into the identical situation of communication module frequency of a WIFI and a non-WIFI, this technical scheme is just powerless.
Three, summary of the invention
The object of the present invention is to provide a kind of can effectively avoiding to disturb with frequency between the communication module, have anti-interference effective device.
The technical solution that realizes the object of the invention is: a kind of preventing between communication module with the device that disturbs frequently; Comprise communication module A, communication module B; Connect transmitting antenna respectively on two communication modules; It is characterized in that: communication module A is connected with the radio-frequency transmissions synchronization control circuit; The radio-frequency transmissions synchronization control circuit also extracts circuit, is connected with radio-frequency transmissions, and said communication module B extracts circuit with radio-frequency transmissions and is connected, and the optimal module of staggering the time synchronously is through being connected with frequently disturbing decision circuitry and radio frequency to receive amplifying circuit.
The present invention compared with prior art; Its remarkable advantage is: 1, the present invention adopts the synchronized transmissions technology of staggering the time, and utilizes a communication module emission gap to insert transmitting of another one communication module, because dislocation emission in time; As long as the two keeps synchronously; Then can keep two communication modules with under the situation frequently always, transmit and do not disturb mutually, thoroughly solve the problem of disturbing with frequently; 2, suppress effect and join with frequency-independent, identical frequency also has the same effect; 3, do not receive spatial constraints, antenna distance is had no special requirements, for the whether no requirement (NR) of the same type of two communication modules.
Four description of drawings
Fig. 1 is the formation sketch map that prevents the device of co-channel interference between communication module of the present invention.
Fig. 2 is the course of work sketch map that prevents the same device that disturbs frequently between communication module of the present invention.
Five embodiments
Below in conjunction with accompanying drawing, specify execution mode of the present invention.
In conjunction with Fig. 1; Of the present invention prevent between communication module comprises communication module A, communication module B with countermeasure set frequently, connects transmitting antenna respectively on two communication modules; Communication module A is connected with radio-frequency transmissions synchronization control circuit 9; Radio-frequency transmissions synchronization control circuit 9 also extracts circuit 7 with radio-frequency transmissions and is connected, and said communication module B extracts circuit 7 with radio-frequency transmissions and is connected, and the optimal module of staggering the time synchronously 8 is through being connected with frequently disturbing decision circuitry 6 and radio frequency to receive amplifying circuit 5.
When communication module A or B worked independently, radio frequency reception amplifying circuit determined radio-frequency transmissions and has only 1 the tunnel, is judged as noiseless.When communication module A or B worked simultaneously, to determine the radio-frequency transmissions frequency the same or approaching if radio frequency receives amplifying circuit, when being judged as interference, will notify the optimal module of staggering the time synchronously further to judge.Surpass set point if confirm the interference that exists, then start the radio-frequency transmissions synchronization control circuit.
Communication module A and communication module B can be the modules of telecommunication 3G/4G, like WCDMA, and EVDO, the TD-LTE module, common on the market like the EM770J of Huawei module, the 3507G DELL5530 of Ericsson module or the like.Also can be the short distance communication module, like WIFI, BT (bluetooth) etc., common on the market like the WM-G-MR-09 module that flies to insult.The optimal module of staggering the time synchronously 8 has been used the low-power consumption ARM single chip computer AT TINY25V-10SSH of ATMEL, the highest 20MHz of dominant frequency, and built-in FLASH memory 2KB, online download function is supported in 8pin SOIC encapsulation.
In conjunction with Fig. 2: of the present inventionly prevent that the concrete work of co-channel interference device is as follows between communication module:
(1) circuit powers on, and communication module A is when work, and corresponding antenna 3 outwards transmits; Communication module B is when work, and corresponding antenna 4 also outwards transmits.
(2) radio frequency receives the signal that amplifying circuit 5 receives antenna 3 and antenna 4 emissions, amplifies in advance respectively, and the primary signal of judgement is provided for the same frequency interference decision circuitry 6 of next stage.
(3) with frequently disturbing decision circuitry 6 to judge at first whether 2 road radio frequencies all work? If have only 1 tunnel work, then judge between them can not produce interference, after the wait, continue to return step 2 and judge; If 2 road radio frequency operations are arranged, then change next step over to;
Does (4) this step judge whether the emission frequency of 2 road radio frequencies identical? If different, then judge between them can not produce interference, after the wait, continue to return step 3 and judge; If frequency is identical, then change next step over to;
(5) this step judge 2 the tunnel have the same transmit frequency the interference that exists of radio circuit whether surpass certain scope? If do not surpass the value range of regulation; Judge that then the interference between them can accept; Do not need control, after the wait, continue to return step 3 and judge; If interference value goes beyond the scope, then change next step over to;
(6) this step will be extracted the emission synchronizing signal of communication module A, be optimized with control signal, reach the purpose of staggering the time to guarantee follow-up control;
Whether (7) this step is the Synchronization Control operation, will return the beginning part after the completion, continue also to exist between the testing circuit and disturb.
Claims (3)
1. one kind prevents between communication module with the frequency countermeasure set; Comprise communication module A, communication module B; Connect transmitting antenna respectively on two communication modules; It is characterized in that: communication module A is connected with radio-frequency transmissions synchronization control circuit (9); Radio-frequency transmissions synchronization control circuit (9) also extracts circuit (7), is connected with radio-frequency transmissions, and said communication module B extracts circuit (7) with radio-frequency transmissions and is connected, and the optimal module of staggering the time synchronously (8) is through being connected with frequently disturbing decision circuitry (6) and radio frequency to receive amplifying circuit (5).
2. the device that prevents that same frequency disturbs between communication module according to claim 1, it is characterized in that: described communication module is Near Field Communication modules such as standard 3G/4G telecommunication module and/or WIFI/BT.
3. according to claim 1 preventing between communication module with the device that disturbs frequently; It is characterized in that: what the described optimal module (8) of staggering the time synchronously adopted is microcontroller circuit; The built-in optimized Algorithm of staggering the time synchronously; Can adjust sequential automatically according to the synchronized transmissions control signal of input, reach the control output purpose of staggering the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012103320074A CN102820896A (en) | 2012-09-10 | 2012-09-10 | Device for preventing same frequency interference between communication modules |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103320074A CN102820896A (en) | 2012-09-10 | 2012-09-10 | Device for preventing same frequency interference between communication modules |
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| CN102820896A true CN102820896A (en) | 2012-12-12 |
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| CN2012103320074A Pending CN102820896A (en) | 2012-09-10 | 2012-09-10 | Device for preventing same frequency interference between communication modules |
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Citations (8)
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| CN101154951A (en) * | 2006-09-26 | 2008-04-02 | 中兴通讯股份有限公司 | Method and device for double-module mobile terminal reducing radio frequency interference |
| CN101562504A (en) * | 2008-04-18 | 2009-10-21 | 中国移动通信集团公司 | Self-adaptive data sending method based on dual-polarized array antenna and system thereof |
| US20100158077A1 (en) * | 1996-06-03 | 2010-06-24 | Broadcom Corporation | Spread spectrum transceiver module utilizing multiple mode transmission |
| CN101790172A (en) * | 2010-01-14 | 2010-07-28 | 中山大学 | Method for preventing same frequency interference and device thereof |
| CN101990123A (en) * | 2010-11-17 | 2011-03-23 | 深圳市泰丰网络设备有限公司 | Set top box device and method for realizing triple play function |
| CN102403571A (en) * | 2010-09-09 | 2012-04-04 | 中兴通讯股份有限公司 | Antenna device and mobile terminal |
| CN102523633A (en) * | 2011-12-16 | 2012-06-27 | 西安大唐电信有限公司 | Wireless sensor network gateway equipment and channel algorithm thereof |
| CN202918279U (en) * | 2012-09-10 | 2013-05-01 | 苏州云达通信科技有限公司 | Apparatus for preventing co-frequency interference between communication modules |
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2012
- 2012-09-10 CN CN2012103320074A patent/CN102820896A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100158077A1 (en) * | 1996-06-03 | 2010-06-24 | Broadcom Corporation | Spread spectrum transceiver module utilizing multiple mode transmission |
| CN101154951A (en) * | 2006-09-26 | 2008-04-02 | 中兴通讯股份有限公司 | Method and device for double-module mobile terminal reducing radio frequency interference |
| CN101562504A (en) * | 2008-04-18 | 2009-10-21 | 中国移动通信集团公司 | Self-adaptive data sending method based on dual-polarized array antenna and system thereof |
| CN101790172A (en) * | 2010-01-14 | 2010-07-28 | 中山大学 | Method for preventing same frequency interference and device thereof |
| CN102403571A (en) * | 2010-09-09 | 2012-04-04 | 中兴通讯股份有限公司 | Antenna device and mobile terminal |
| CN101990123A (en) * | 2010-11-17 | 2011-03-23 | 深圳市泰丰网络设备有限公司 | Set top box device and method for realizing triple play function |
| CN102523633A (en) * | 2011-12-16 | 2012-06-27 | 西安大唐电信有限公司 | Wireless sensor network gateway equipment and channel algorithm thereof |
| CN202918279U (en) * | 2012-09-10 | 2013-05-01 | 苏州云达通信科技有限公司 | Apparatus for preventing co-frequency interference between communication modules |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20121212 |