CN101873158A - Radio frequency communication device using MIMO technique - Google Patents
Radio frequency communication device using MIMO technique Download PDFInfo
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- CN101873158A CN101873158A CN201010190070A CN201010190070A CN101873158A CN 101873158 A CN101873158 A CN 101873158A CN 201010190070 A CN201010190070 A CN 201010190070A CN 201010190070 A CN201010190070 A CN 201010190070A CN 101873158 A CN101873158 A CN 101873158A
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Abstract
The invention provides a radio frequency communication device using an MIMO technique, which comprises at least two communication links. A downlink, a circulator and an uplink are connected sequentially in each communication link. The circulator comprises a first port, a second port and a third port which are arrayed circularly; the downlink takes the first port as a downlink radio frequency output end, and the uplink also takes the first port as an uplink radio frequency input end; the downlink is connected with the circulator through the third port, and the circulator transmits a downlink signal which is transmitted to the third port by the downlink to the first port unidirectionally in a given direction to perform radio frequency signal transmitting processing; and the uplink is connected with the circulator through the second port, and the circulator transmits an uplink signal which is subjected to radio frequency signal receiving processing in the first port to the second port unidirectionally in the given direction. Switching for the links is realized through the circulator; and the radio frequency communication device realizes integration of the communication links, reduces the number of modules, improves the level of integration for parts and also reduces the manufacturing cost at the same time.
Description
Technical field
The present invention relates to technology for radio frequency, specifically propose a kind of frequency communication devices of using MIMO technique.
Background technology
MIMO (Multiple-Input Multiple-Output) represents multiple-input and multiple-output.The MIMO technology has become one of key technology of moving communicating field, and by sustainable development in recent years, the MIMO technology will be applied to various mobile communication system more and more.
The frequency communication devices of existing using MIMO technique is to separate the stand alone type design mostly, has two or more communication link and at the independently monitoring unit of each communication link and external interface or the like.In every communication link, up link comprises up rf inputs, LNA module and up radio-frequency (RF) output end; Down link comprises downlink radio frequency input, pre-level unit, a promotion level unit, final stage unit and the downlink radio frequency output of promoting.Multilink, a plurality of monitoring unit are respectively on a plurality of circuit boards.Design makes that device volume is big, quality heavy, cost is high like this.In increasingly competitive today, the requirement of low-cost and Highgrade integration has no longer been satisfied in this design.
Summary of the invention
The objective of the invention is to, propose a kind of frequency communication devices of using MIMO technique, improve the integrated degree of parts.
The frequency communication devices of the using MIMO technique that the present invention proposes comprises at least two communication links; Every communication link comprises down link, circulator and the up link that connects successively; Wherein, described circulator comprises first port, second port and the 3rd port of annular array.
In every communication link, described down link with described first port as the downlink radio frequency output, simultaneously described up link also with this first port as up rf inputs.
Down link is connected with described circulator by described the 3rd port, described circulator with downlink transmission extremely the downstream signal of described the 3rd port be one-way transmitted to described first port along assigned direction and carry out the emission of radio frequency signals processing.
Up link is connected with described circulator by described second port, and described circulator is one-way transmitted to described second port with the upward signal that receives after handling through radiofrequency signal in described first port along described assigned direction.
Wherein, described assigned direction is clockwise direction or counter clockwise direction.
In the present invention, first port, second port and the 3rd port that comprise annular array in the circulator.The present invention uses first port simultaneously as the downlink radio frequency output of down link and the up rf inputs of up link, then when carrying out the signal transmission, being that assigned direction is an example clockwise, circulator carries out the emission of radio frequency signals processing with the downstream signal of downlink transmission to the three ports along being one-way transmitted to first port clockwise, promptly can connect antenna at first port as the downlink radio frequency output signal is launched; And simultaneously circulator can receive upward signal with first port as up rf inputs, then this upward signal is one-way transmitted to second port along clockwise direction and then transmission enters up link.As from the foregoing, radiofrequency signal unidirectional irreversible transmission in circulator makes and can not interfere with each other between downstream signal and the upward signal that the switching of up link and down link can successfully realize.So communication link can reach integrated among the present invention, thereby reduced the quantity of required module and directly improved the integrated degree of parts, also made the littler manufacturing cost of this small product size lower simultaneously.
Description of drawings
Fig. 1 moves towards schematic diagram for the frequency communication devices signal of using MIMO technique;
Fig. 2 is the inner detailed schematic of forming of the frequency communication devices of using MIMO technique;
Fig. 3 is the operation principle schematic diagram of circulator.
Embodiment
Embodiment 1:
Present embodiment is mainly described a kind of frequency communication devices of using MIMO technique.
As shown in Figure 1, this frequency communication devices comprises two communication links.Communication link can increase and decrease according to design requirement, present embodiment with about two communication links placed be described.Every communication link comprises down link, circulator and the up link that connects successively; Wherein, circulator comprises first port, second port and the 3rd port of annular array, represents first port, second port and the 3rd ports with Arabic numerals 1,2,3 respectively in Fig. 1.First, second, third only is the convenience in order to describe, so in such a way three ports of circulator are named, does not constitute the restriction to this circulator.
In every communication link, down link with first port as the downlink radio frequency output, simultaneously up link also with this first port as up rf inputs.Promptly in Fig. 11 port simultaneously as downlink radio frequency output and up rf inputs.
Down link is by the 3rd port, and promptly 3 ports are connected with circulator.Circulator is one-way transmitted to 1 port with the downstream signal of downlink transmission to 3 port along assigned direction to carry out emission of radio frequency signals and handles.Up link is by second port, and promptly 2 ports are connected with circulator.Circulator will be one-way transmitted to 2 ports through the upward signal that radiofrequency signal receives after handling along assigned direction at 1 port.
Herein, assigned direction can be clockwise direction or counter clockwise direction.Two communication links of placing about present embodiment comprises.Concerning the communication link on the left side, the transmittance process of downstream signal is: circulator is one-way transmitted to 1 port in the counterclockwise direction with the downstream signal of downlink transmission to 3 port, 1 port can external antenna as the downlink radio frequency output, after downstream signal being carried out the emission of radio frequency signals processing, this signal is launched.The transmittance process of upward signal is: circulator is one-way transmitted to 2 ports equally in the counterclockwise direction with the upward signal that receives after handling through radiofrequency signal in 1 port, makes upward signal can transfer to up link, so that be for further processing.
Concerning the communication link on the right, the transmittance process of downstream signal is: circulator is one-way transmitted to 1 port along clockwise direction with the downstream signal of downlink transmission to 3 port, 1 port can external antenna as the downlink radio frequency output, after downstream signal being carried out the emission of radio frequency signals processing, this signal is launched.The transmittance process of upward signal is: circulator is one-way transmitted to 2 ports equally along clockwise direction with the upward signal that receives after handling through radiofrequency signal in 1 port, makes upward signal can transfer to up link, so that be for further processing.
In this frequency communication devices, being that assigned direction is an example clockwise, the operation principle of circulator is: will transfer to second port in the direction of the clock at the input signal that first port receives, to transfer to the 3rd port in the direction of the clock at the input signal that second port receives, will transfer to first port in the direction of the clock at the input signal that the 3rd port receives.Because this transmission is unidirectional, irreversible transmission makes the switching of up link and down link be achieved.Because circulator transfers to first port with the downstream signal that the 3rd port receives, first port connects antenna emission of radio frequency signals is gone out, and relative the 3rd port of second port is isolated, and downstream signal can not interfere with upward signal.In like manner, during uplink signal transmissions to the second port that circulator receives first port, second port is isolated with respect to the 3rd port, and upward signal can not interfere with downstream signal equally.By the switching of such realization up link and down link, reach best effect.
So, the invention enables multiple communication links can be manufactured on the circuit board, the frequency communication devices volume reduces and cost reduces, and satisfies the requirement of low-cost and Highgrade integration.
Embodiment 2:
Present embodiment proposes a kind of frequency communication devices of using MIMO technique, as shown in Figure 2.Comprise that a monitoring module that is used to monitor each communication link and each module status, one are used to interface module and two communication links that carry out correspondence with foreign country and connect external power source.Wherein, interface module comprises external communication interface and power interface; Every communication link comprises down link, circulator and up link, down link comprises downlink radio frequency input, pre-level unit, a promotion level unit, final stage unit and the downlink radio frequency output of promoting, and up link comprises up rf inputs, LNA module and up radio-frequency (RF) output end.The implementation of a pre-promotion level unit, promotion level unit and final stage unit is same as the prior art, can use power tube to realize.Circulator comprises first port, second port and the 3rd port of annular array.In Fig. 2, represent first port, second port and the 3rd ports with Arabic numerals 1,2,3 respectively.First, second, third only is the convenience in order to describe, so in such a way three ports of circulator are named, does not constitute the restriction to this circulator.
In every communication link, down link with 1 port on the circulator as the downlink radio frequency output, simultaneously up link also with this 1 port as up rf inputs.
Communication link with right side among Fig. 2 is an example below, describes the signal trend in the frequency communication devices.
The transmittance process of downstream signal is: down link is connected with circulator by 3 ports.Downstream signal through promoting a level unit in advance, promoting level unit and final stage unit, transfers to 3 ports successively then from the input of downlink radio frequency input.Circulator is one-way transmitted to 1 port along clockwise direction with the downstream signal of downlink transmission to 3 port, and 1 port can external antenna as the downlink radio frequency output, this signal is launched after emission of radio frequency signals handles in that downstream signal is carried out.
The transmittance process of upward signal is: circulator is one-way transmitted to 2 ports equally along clockwise direction with the upward signal that receives after handling through radiofrequency signal in 1 port, make upward signal can transfer to up link, upward signal enters up link then, through the LNA module, from up radio-frequency (RF) output end output.
As shown in Figure 3, Fig. 3 is the operation principle schematic diagram of circulator.To transfer to 2 ports in the direction of the clock at the input signal that 1 port receives, will transfer to 3 ports in the direction of the clock, will transfer to 1 port in the direction of the clock at the input signal that 3 ports receive at the input signal that 2 ports receive.Because this transmission is unidirectional, irreversible transmission makes the switching of up link and down link be achieved.
In the frequency communication devices of present embodiment, use a monitoring module to come two communication links are carried out condition monitoring, when in link, unusual condition occurring, can make the monitor staff obtain corresponding information, so that be further processed from this monitoring module.Simultaneously, frequency communication devices only uses an interface module, and links at different levels all carry out PERCOM peripheral communication by external communication interface; This frequency communication devices is connected with external power source by power interface.
Realized the design that communication link is integrated by circulator the present invention, can reduce the link area effectively, reduced the volume and weight of frequency communication devices, made product more small-sized, the parts integrated level is higher.
As the further improvement of the foregoing description, the product of present embodiment also comprises the monitoring temperature unit that is used to monitor the down link temperature and the temperature data that obtains is back to monitoring module.Have only the false phenomenon of temperature detection under the application model of a link job for two communication links about preventing to occur, be different from the design of other common frequency communication devices, two monitoring temperature unit are set in this frequency communication devices inside.Because the final stage unit of down link is a power tube, monitoring temperature unit of placement, monitor temperature in real time near this final stage power amplifier pipe.The working point of power tube is according to nearby principle, and the temperature of promptly nearest monitoring objective compensates.So, when the distance of monitoring temperature unit and final stage unit when 4cm is following, the monitoring temperature unit can obtain comparatively desirable monitoring temperature data, then these monitoring temperature data is returned monitoring module, is handled by monitoring module.Can solve the problem that causes the module performance rapid deterioration owing to compensation temperature is untrue well like this, improve the overall performance index.
As further improvement to the foregoing description, in the frequency communication devices, the circulator spacing control of each communication link within the specific limits, should not lean on too closely, because circulator is a pyrotoxin, can prevent from like this to improve the reliability of circulator and prolong its life-span because the too high circulator that causes of temperature lost efficacy, concrete spacing can be calculated according to the hot emulation of reality.By hot emulation, the circulator of adjacent two communication links apart from remaining on more than the 10cm at interval, can effectively be prevented to solve reliability and device problem in useful life because the too high circulator that causes of temperature lost efficacy.
As further improvement, in the frequency communication devices, separate by the cavity partition wall between each communication link the foregoing description.In every communication link, down link and up link are by the cavity partition wall separately.A pre-promotion level unit, promotion level unit and final stage unit separate by the cavity partition wall respectively.Utilize the effect of cavity partition wall to be up link and down link are isolated, prevent that the radiofrequency signal of two links from interfering with each other, the signal that can prevent output is simultaneously played a reversed role and is fed back into end and causes self-excitation, burns radio frequency path.
Picture WiMax (Worldwide Interoperability for Microwave Access, be that worldwide interoperability for microwave inserts) or LTE (Long Term Evolution, be Long Term Evolution) or the like be operated in the above standard of 2G Hz, very high to the isolation and the shielding requirements of frequency communication devices.This product has strengthened the sealing and the isolation of frequency communication devices by the introducing of cavity partition wall.In the present embodiment, the partition wall of partition wall for using some glue to make, the thickness of the partition wall that frequency communication devices uses is more than 5mm.Point glue can prevent entering of materials such as micronic dust, steam, avoids product is damaged.The partition wall that adopts existing various dispensing technology to make can satisfy the requirement of the product of the present invention's proposition.The thickness of partition wall can determine according to the actual frequency range and the watt level of frequency communication devices work, and partition wall thickness makes this frequency communication devices sealing and isolation better more than 5mm.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (8)
1. the frequency communication devices of a using MIMO technique is characterized in that, comprises at least two communication links; Every communication link comprises down link, circulator and the up link that connects successively; Wherein, described circulator comprises first port, second port and the 3rd port of annular array;
In every communication link, described down link with described first port as the downlink radio frequency output, simultaneously described up link also with this first port as up rf inputs;
Down link is connected with described circulator by described the 3rd port, described circulator with downlink transmission extremely the downstream signal of described the 3rd port be one-way transmitted to described first port along assigned direction and carry out the emission of radio frequency signals processing;
Up link is connected with described circulator by described second port, and described circulator is one-way transmitted to described second port with the upward signal that receives after handling through radiofrequency signal in described first port along described assigned direction;
Wherein, described assigned direction is clockwise direction or counter clockwise direction.
2. according to the frequency communication devices of the described using MIMO technique of claim 1, it is characterized in that, also comprise the monitoring module that is used to monitor each communication link and each module status in the described frequency communication devices.
3. according to the frequency communication devices of the described using MIMO technique of claim 2, it is characterized in that, also comprise the monitoring temperature unit that is used to monitor the down link temperature and the temperature data that obtains is back to described monitoring module in the described frequency communication devices.
4. according to the frequency communication devices of the described using MIMO technique of claim 3, it is characterized in that described down link comprises the final stage unit, the distance of described monitoring temperature unit and described final stage unit is below 4cm.
5. according to the frequency communication devices of claim 1 or 4 described using MIMO techniques, it is characterized in that the circulator of adjacent two communication links is apart from interval more than 10cm.
6. according to the frequency communication devices of the described using MIMO technique of claim 5, it is characterized in that, separate by the cavity partition wall between each communication link;
In every communication link, described down link and described up link are by the cavity partition wall separately;
Described down link also comprises pre-promotion level unit and promotes the level unit; Described pre-promotion level unit, described promotion level unit are connected successively with described final stage unit; Described pre-promotion level unit, described promotion level unit and described final stage unit are respectively by the cavity partition wall separately.
7. according to the frequency communication devices of the described using MIMO technique of claim 6, it is characterized in that the partition wall of described partition wall for using some glue to make.
8. according to the frequency communication devices of the described using MIMO technique of claim 7, it is characterized in that the thickness of described partition wall is more than 5mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010190070A CN101873158A (en) | 2010-05-27 | 2010-05-27 | Radio frequency communication device using MIMO technique |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010190070A CN101873158A (en) | 2010-05-27 | 2010-05-27 | Radio frequency communication device using MIMO technique |
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| CN101873158A true CN101873158A (en) | 2010-10-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103347264A (en) * | 2013-06-18 | 2013-10-09 | 京信通信系统（广州）有限公司 | High-power covering method and covering device of TDD mobile communication system |
| WO2017157095A1 (en) * | 2016-03-15 | 2017-09-21 | 中兴通讯股份有限公司 | Radio frequency shield box, power amplifier and radio frequency shielding method |
| CN109804711A (en) * | 2016-07-04 | 2019-05-24 | 凯尔联科公司 | Modular communication device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1428943A (en) * | 2001-12-28 | 2003-07-09 | 株式会社日立制作所 | Multi-point radio transmission relay system and wirless device |
| US20090265601A1 (en) * | 2008-04-21 | 2009-10-22 | Tr Technologies Inc. | Mitigation of transmission errors of quantized channel state information feedback in multi antenna systems |
| CN201699702U (en) * | 2010-05-27 | 2011-01-05 | 京信通信系统（中国）有限公司 | Radio frequency communication device applying MIMO technology |
-
2010
- 2010-05-27 CN CN201010190070A patent/CN101873158A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1428943A (en) * | 2001-12-28 | 2003-07-09 | 株式会社日立制作所 | Multi-point radio transmission relay system and wirless device |
| US20090265601A1 (en) * | 2008-04-21 | 2009-10-22 | Tr Technologies Inc. | Mitigation of transmission errors of quantized channel state information feedback in multi antenna systems |
| CN201699702U (en) * | 2010-05-27 | 2011-01-05 | 京信通信系统（中国）有限公司 | Radio frequency communication device applying MIMO technology |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103347264A (en) * | 2013-06-18 | 2013-10-09 | 京信通信系统（广州）有限公司 | High-power covering method and covering device of TDD mobile communication system |
| CN103347264B (en) * | 2013-06-18 | 2015-12-02 | 京信通信系统（广州）有限公司 | The high-power covering method of TDD mobile communication system and device |
| WO2017157095A1 (en) * | 2016-03-15 | 2017-09-21 | 中兴通讯股份有限公司 | Radio frequency shield box, power amplifier and radio frequency shielding method |
| CN109804711A (en) * | 2016-07-04 | 2019-05-24 | 凯尔联科公司 | Modular communication device |
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Application publication date: 20101027 |