CN101710832A - Method for debugging radio frequency front-end module and redundant device - Google Patents
Method for debugging radio frequency front-end module and redundant device Download PDFInfo
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- CN101710832A CN101710832A CN200910222631A CN200910222631A CN101710832A CN 101710832 A CN101710832 A CN 101710832A CN 200910222631 A CN200910222631 A CN 200910222631A CN 200910222631 A CN200910222631 A CN 200910222631A CN 101710832 A CN101710832 A CN 101710832A
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Abstract
The invention discloses a method for debugging a radio frequency front-end module and a redundant device, the method comprises the step; in the process of debugging, when the working mode of the radio frequency front-end module is about to be tested, the connection between an antenna switch corresponding to high level in control logic to which the mode corresponds and a power supply management unit inside the radio frequency front-end module is established. The redundant device comprises a connection unit for connecting the antenna switch corresponding to the high level in control logic to which the mode corresponds and the power supply management unit inside the radio frequency front-end module in the process of debugging. Compared with the prior art, the method achieves the purpose of directionally opening the antenna switch in the process of debugging and test so that a radio frequency engineer can debug radio frequency circuits in narrow space, the trouble of welding a large number of cables in the process of debugging and test is settled and the working efficiency is enhanced.
Description
Technical field
The present invention relates to field of communication, relate in particular to a kind of method and redundant apparatus of debugging radio frequency front-end module.
Background technology
In the process of mobile phone/data card design and test; the problem that occurs the not up to standard or index severe overweight of index through regular meeting; general reason is exactly the insufficient sensitivity of receiver; power output is not enough; GSM (Global System for Mobile Communications; global system for mobile communications) switch spectrum exceeds standard; TD-SCDMA (Time Division-Synchronous Code Division MultipleAccess; the code division multiple access that time-division is synchronous) ACLR (Adjacent Channel Leakage Ratio; adjacent channel leakage compares) exceed standard etc., the reason that produces these problems is broadly divided into following several:
1, because on the signal path problem of certain device itself causes;
2, because PCB (Printed Circuit Board, printed circuit board) layout and cabling is unreasonable or via hole is improper causes.For the influence of these placement-and-routings, common way is exactly the matching network that level adds T type, double L-shaped or pi type before and after the device, and for different layouts and cabling, matching network is different, although be with a kind of design.The 3rd reason below Here it is;
3, the reason of circuit mismatch.
Cell Phone Design integrates all things in every way, and this is very unfavorable to RF (RadioFrequency, radio frequency) board design.Nowadays industry competition is very fierce, and everybody is managing with minimum size and the minimum integrated maximum function of cost.Be crowded together to simulation, numeral and RF circuitry in close, the space that is used for separating problem area separately is very little, and considers cost factor, and it is minimum that the circuit board number of plies is often reduced to again.The multipurpose chip can be integrated in multiple function on the very little nude film, and arrange very closely again between the pin in the connection external world, so RF, IF (Intermediate Frequency, intermediate frequency), analog and digital signal is very close, but they are incoherent on electric usually.This has just caused the good circuit that mates in theory to have very big deviation in real work, when particularly placement-and-routing is unreasonable, is easy to cause the mismatch of circuit, occurs various reflection losses on transmission line.
Radio frequency circuit board design therefore often described to be a kind of " black art ", but this viewpoint has only part correct owing to also have a lot of uncertainly in theory, and the RF board design also has the many criterions that can follow and should unheeded rule.
The dual-mode handset of current each famous brand of statistics all is the design of 2G+3G generally.All schemes all are at radio-frequency front-end a multimode switch to be set, a series of instructions by baseband controller make this switch switch to the needed mode of operation of system synchronously, on signal path, test the parameter S 11 of some matching network then, by changing the parameter of matching network, make the radio frequency link input and output mate optimum position at 50 ohm.
For transmitting branch, the matching network by the output of debugging power amplifier cooperates the smith circle diagram, makes power amplifier be operated in the maximal efficiency point; For receiving branch, the front and back matching network by the debugging receiving filter makes receiver be in desirable operating state, guarantees that the receiving branch loss is lower, and sensitivity is higher.
Common debugging is all carried out under non-signaling mode, that is to say, receiver/transmitter is operated in a kind of pattern always, such as long-time emission, need multimode switch to be in single mode of operation in this case, in general baseband controller is idle, has promptly lost the control to multimode switch.
The debugging of radio frequency and microwave equipment in most cases is passive debugging, main purpose is exactly the S11 of testing passive transmission link, the coupling that just guarantees transmission link is fine, guarantee that reflection is minimum, but in the general end product, the problem that on these passive link, always has a switching, such as the switching that in time-sharing work, receives emission, automatically the switching problem that has 2G network and 3G network search network the time, the electronic switch of this radio frequency is generally realized by baseband controller, but in independent debugging or passive debugging, this switch has just lost the control of baseband controller.
In the industry cycle, it is cumbersome to debug these matching networks, at first will control multimode switch, and common way is exactly on duplexer SWITCH1～SWITCH4 and connects 4 cables, external power supply, make control logic in requisition for mode of operation.This work is cumbersome, because the design of radio-frequency front-end is all very compact usually, bimodulus 7 radio-frequency front-end frequently as shown in Figure 1, all radiofrequency signals all will be passed through these multimode switch input and output, and control logic has just increased the electric capacity of a decoupling on each line, and the design encapsulation of the overwhelming majority all is 0201 encapsulation, to on this, weld 4 lines so, difficulty is very big, and is welded on the pin of electric capacity, and is also not firm.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method and redundant apparatus of debugging radio frequency front-end module, to overcome the relatively more difficult defective of debugging test that exists in the existing radio-frequency front-end technology.
For addressing the above problem, the invention provides a kind of method of debugging radio frequency front-end module, comprising:
In debug process, when desire is tested the mode of operation of described RF front-end module, set up being connected of Power Management Unit of the pairing duplexer of high level and this RF front-end module inside in the pairing control logic of this pattern.
Further, said method also can have following feature:
Describedly set up in the pairing control logic of mode of operation the pairing duplexer of high level and be meant being connected of Power Management Unit of this RF front-end module inside: in control logic, insert resistance between the Power Management Unit of pairing duplexer of high level and described RF front-end module inside.
Further, said method also can have following feature:
The resistance value of the described resistance that is access in is 0～1K.
The present invention also provides a kind of redundant apparatus of debugging radio frequency front-end module, comprises linkage unit;
Described linkage unit is used for when the debug process desire is tested the mode of operation of described RF front-end module, connects the Power Management Unit of the pairing duplexer of high level and described RF front-end module inside in the pairing control logic of described mode of operation.
Further, above-mentioned redundant apparatus also can have following feature:
Described linkage unit is a plurality of resistance, and the quantity of resistance is smaller or equal to the quantity of described duplexer.
Further, above-mentioned redundant apparatus also can have following feature:
The resistance value of each resistance is 0～1K.
After adopting the present invention, compared with prior art, obtained the purpose that the duplexer orientation is opened in the debugging test process, make Radio Frequency Engineer can carry out the debugging work of radio circuit simply at narrow space, solve the trouble of a large amount of cables of welding in the debugging test process, improved operating efficiency.
Description of drawings
Fig. 1 is the structured flowchart of RF front-end module in the prior art;
Fig. 2 is for having added the structured flowchart of the RF front-end module of redundant apparatus in the embodiment of the invention.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
The common multimode switch of industry is general maximum to be exactly that hilted broadsword 9 is thrown, just common reception frequency range: GSM850, GSM900, DCS (Distributed Control System, dcs) 1800, PCS (Process Control System, Process Control System) 1900, transmit frequency band: GSM850/900, GSM1800/1900, three frequency range: UMTS (Universal MobileTelecommunications System, universal mobile telecommunications system) 1 of 3G in addition, UMTS2, UMTS3.In terminal equipment, the switching command of real work all is that the logic control of baseband controller is coordinated, but launch or the passive debugging of reception and segmentation in, the control of this multimode switch is exactly the problem that Radio Frequency Engineer must be faced.Only after required switch link is opened, just can go on for the debugging of certain passage, on radio frequency connector, connect one 50 ohm load like this, just can debug the data that Test Design person needs very easily.
The basic design of the method for the invention is: in debug process, when desire is tested the mode of operation of RF front-end module, set up being connected of Power Management Unit of the pairing duplexer of high level and this RF front-end module inside in the pairing control logic of this pattern.Wherein, control logic is meant the combination that is connected the high-low level on the pin of multimode switch and each duplexer in the RF front-end module.
In actual use, set up the pairing duplexer of high level and this RF front-end module inside in the pairing control logic of this pattern Power Management Unit be connected can but be not limited to adopt the mode that between the Power Management Unit of the pairing duplexer of high level and this RF front-end module inside, inserts resistance to realize.Preferably, the resistance value of this resistance that is access in is 0～1K.
Concrete implementation increases by the resistance of 4 0～1K as shown in Figure 2 on the control line of duplexer, as the R01 in the empty frame among the figure, R02, R03, R04, under initial condition, the other end of these resistance is put sky, does not need to be welded on the Power Management Unit.An end that only according to control logic needs is changed to the resistance on the duplexer control line of high level in debugging is connected on the Power Management Unit, needing to realize the mode of operation of debugging.
The basic design of redundant apparatus of the present invention is: comprise linkage unit in this redundant apparatus; Described linkage unit is used for when the debug process desire is tested the mode of operation of RF front-end module, connects the Power Management Unit of the pairing duplexer of high level and this RF front-end module inside in the pairing control logic of this pattern.
Preferably, this linkage unit can but to be not limited to be resistance, the quantity of resistance is smaller or equal to the quantity of duplexer.Wherein, the resistance value of each resistance can be 0～1K.
Further be illustrated with an application example of the present invention below.
As shown in table 1, in the time need debugging, by truth table as can be seen, only need the control pin of SWITCH3 is changed to high level to the receiving circuit of GSM900, other duplexer is a low level.
The truth table of the control logic of table 1 when the receiving branch of GSM900 is debugged
| ??Mode | ??SWITCH1 | ??SWITCH2 | ??SWITCH3 | ??SWITCH4 | ??VDD |
| ??RX_GSM900 | L (low level) | ??L | H (high level) | ??L | ??H |
In the process of debugging test, only need just can realize the pattern that we need very easily, so because other level all is a low level by R03 in welding between SWITCH3 and the Power Management Unit.When switch is in the GSM900 pattern, coupling for the receive path of GSM900, particularly the matching and debugging of filter by vowing that net just can test out its S11 very easily, is just realized the needed match circuit of designer easily on the smith circle diagram.
In sum, the present invention transfers the method for survey problem for a kind of effective solution that experience produced that relies on accumulation in the research and development of products process, it relates to the every field of communicating terminal, very important use value is particularly arranged in the research and development of multimode terminal product, comprise mobile phone, data card, Modem etc.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (6)
1. the method for a debugging radio frequency front-end module is characterized in that,
In debug process, when desire is tested the mode of operation of described RF front-end module, set up being connected of Power Management Unit of the pairing duplexer of high level and this RF front-end module inside in the pairing control logic of this pattern.
2. the method for claim 1 is characterized in that,
Describedly set up in the pairing control logic of mode of operation the pairing duplexer of high level and be meant being connected of Power Management Unit of this RF front-end module inside: in control logic, insert resistance between the Power Management Unit of pairing duplexer of high level and described RF front-end module inside.
3. method as claimed in claim 2 is characterized in that,
The resistance value of the described resistance that is access in is 0～1K.
4. the redundant apparatus of a debugging radio frequency front-end module is characterized in that, comprises linkage unit;
Described linkage unit is used for when the debug process desire is tested the mode of operation of described RF front-end module, connects the Power Management Unit of the pairing duplexer of high level and described RF front-end module inside in the pairing control logic of described mode of operation.
5. redundant apparatus as claimed in claim 4 is characterized in that,
Described linkage unit is a plurality of resistance, and the quantity of resistance is smaller or equal to the quantity of described duplexer.
6. redundant apparatus as claimed in claim 5 is characterized in that,
The resistance value of each resistance is 0～1K.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910222631A CN101710832A (en) | 2009-11-23 | 2009-11-23 | Method for debugging radio frequency front-end module and redundant device |
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| CN200910222631A CN101710832A (en) | 2009-11-23 | 2009-11-23 | Method for debugging radio frequency front-end module and redundant device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902243A (en) * | 2010-07-28 | 2010-12-01 | 锐迪科创微电子（北京）有限公司 | Configurable multimode radio-frequency front end module and mobile terminal having same |
| CN102394668A (en) * | 2011-09-14 | 2012-03-28 | 中兴通讯股份有限公司 | Mobile terminal and method for processing same |
| CN106708731A (en) * | 2016-11-29 | 2017-05-24 | 郑州云海信息技术有限公司 | Equipment debugging switching method and CPLD (Complex Programmable Logic Device) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060719A (en) * | 1990-10-09 | 1992-04-29 | 周宇怀 | Simple testing unit for digital integrated circuit |
| CN101483479A (en) * | 2009-02-13 | 2009-07-15 | 苏州通创微芯有限公司 | Multi-mode radio frequency switch module used for wireless communication |
-
2009
- 2009-11-23 CN CN200910222631A patent/CN101710832A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060719A (en) * | 1990-10-09 | 1992-04-29 | 周宇怀 | Simple testing unit for digital integrated circuit |
| CN101483479A (en) * | 2009-02-13 | 2009-07-15 | 苏州通创微芯有限公司 | Multi-mode radio frequency switch module used for wireless communication |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902243A (en) * | 2010-07-28 | 2010-12-01 | 锐迪科创微电子（北京）有限公司 | Configurable multimode radio-frequency front end module and mobile terminal having same |
| CN101902243B (en) * | 2010-07-28 | 2013-01-02 | 锐迪科创微电子（北京）有限公司 | Configurable multimode radio-frequency front end module and mobile terminal having same |
| CN102394668A (en) * | 2011-09-14 | 2012-03-28 | 中兴通讯股份有限公司 | Mobile terminal and method for processing same |
| CN106708731A (en) * | 2016-11-29 | 2017-05-24 | 郑州云海信息技术有限公司 | Equipment debugging switching method and CPLD (Complex Programmable Logic Device) |
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Application publication date: 20100519 |