CN102714516A - Wireless communication node - Google Patents

Wireless communication node Download PDF

Info

Publication number
CN102714516A
CN102714516A CN2012800001821A CN201280000182A CN102714516A CN 102714516 A CN102714516 A CN 102714516A CN 2012800001821 A CN2012800001821 A CN 2012800001821A CN 201280000182 A CN201280000182 A CN 201280000182A CN 102714516 A CN102714516 A CN 102714516A
Authority
CN
China
Prior art keywords
wireless communication
communication module
power
power output
antenna
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
Application number
CN2012800001821A
Other languages
Chinese (zh)
Inventor
彭勇
景丰华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Device Co Ltd
Original Assignee
Huawei Device Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huawei Device Co Ltd filed Critical Huawei Device Co Ltd
Publication of CN102714516A publication Critical patent/CN102714516A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0475—Circuits with means for limiting noise, interference or distortion

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)

Abstract

An embodiment of the invention provides a wireless communication node, comprising a wireless communication module, a first attenuation network and an antenna. The first attenuation network is arranged between an output terminal of the wireless communication module and the antenna. An input power of the antenna is in the range of a target power. The technique of arranging the attenuation network between the wireless communication module and the antenna according to the embodiment of the invention allows that the output power of the wireless communication module can be set larger than a case without the attenuation network, thus reducing the impact of temperature on the output power, and the program achievement only needs to add the attenuation network and do some adjustment of simple device parameters, being easy to implement and low in cost.

Description

Wireless communication node
Technical field
The embodiment of the invention relates to wireless communication technology field, relates in particular to a kind of wireless communication node.
Background technology
Purple honeybee Zigbee be a kind of emerging closely, low complex degree, low-power consumption, low data rate, radio network technique cheaply.Zigbee is mainly used near radio and connects; It is according to (the Institute of Electrical and Electronics Engineers of IEEE-USA; Be called for short IEEE) the 802.15.4 standard, between thousands of small transducers, coordinate to realize communication each other.These transducers only need energy seldom, through radio wave data are passed to another node from a node with the mode of relay, so communication efficiency is very high.Because device property; Power model in the Zigbee node, like the Zigbee chip, at high temperature power output can descend; Power output can rise under the low temperature; If will guarantee that the power output under the normal temperature can satisfy the requirement of target power, then power output is easy to surpass target power at low temperatures, causes not meeting designing requirement.
In order to reduce the influence of temperature to the Zigbee node power; A kind of existing solution is to add temperature-compensating; Promptly through temperature detection, the correspondence table of inquiring about temperature and power back-off according to detected temperature value obtains power compensating value, then power is compensated.Also having a solution is to add power detection and control; Promptly obtain the relation of coupled power and true power output through calibration; When operate as normal, coupled power is detected; Obtain corresponding true power output according to the coupled power that records, true power output and target power are compared the foundation as the power adjustment.
In realizing process of the present invention; The inventor finds: except the Zigbee node, other wireless communication nodes are like wireless fidelity (Wireless Fidelity; Abbreviation WiFi) node, bluetooth (Bluetooth; Be called for short BT) node etc., also exist said temperature influence the problem of power output (being also referred to as power), and existing solution realize that complicacy, cost are high with temperature drift.
Summary of the invention
The embodiment of the invention provides a kind of wireless communication node, in order to a kind of solution that reduces temperature to the influence of power output to be provided.
A kind of wireless communication node that the embodiment of the invention provides comprises:
Wireless communication module, first attenuation network and antenna;
Said first attenuation network is arranged between the output and said antenna of said wireless communication module; The input power of said antenna is in the target power scope.
The embodiment of the invention is employed in the technological means that attenuation network is set before wireless communication module and the antenna; Make the power output of wireless communication module can be provided with than big under the situation that does not have attenuation network; And bigger its temperature influence of the power output of wireless communication module is more little, and correspondingly, the gross output of wireless communication node receives Influence of Temperature also more little; Therefore, the embodiment of the invention can reduce the influence of temperature to power output.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of wireless communication node that Fig. 1 provides for the embodiment of the invention;
The structural representation of another wireless communication node that Fig. 2 provides for the embodiment of the invention;
The structural representation of another wireless communication node that Fig. 3 provides for the embodiment of the invention;
The structural representation of another wireless communication node that Fig. 4 provides for the embodiment of the invention;
Fig. 5 is the sketch map of a kind of application scenarios of the embodiment of the invention;
Fig. 6 is the sketch map of another application scenarios of the embodiment of the invention;
Fig. 7 is the sketch map of another application scenarios of the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The structural representation of a kind of wireless communication node that Fig. 1 provides for the embodiment of the invention.As shown in Figure 3, wireless communication node comprises:
Wireless communication module 31, the first attenuation networks 32 and antenna 33;
First attenuation network 32 is arranged between wireless communication module 31 and the antenna 33;
The input power of antenna 33 is in the target power scope.
Wireless communication module 31, first attenuation network 32 and antenna 33 have constituted the transmission channel of wireless communication node.Need to prove, on transmission channel, before the antenna 33, can also comprise the antenna change-over switch Switch that is used for switched antenna 33 emissions and receiving function.Particularly, wireless communication module 31 can be the module that Zigbee chip, WiFi chip, BT chip etc. have radio communication function, and accordingly, wireless communication node can be called Zigbee node, WiFi node, BT node.First attenuation network 32 can be network or the device that resistor network, wave invigorating network, attenuator etc. can effectively reduce power.The input power of antenna 33 is the gross output of said wireless communication node just.
In realizing process of the present invention, the inventor finds through experiment: the power output of wireless communication module is big more, and its power output receives Influence of Temperature more little, that is to say, the power output of wireless communication module is under saturation condition, and the power temperature influence is minimum.Usually, can be through the power output (being also referred to as transmitting power) of software arrangements wireless communication module 31.
In an optional embodiment of the present invention; Can dispose the pad value of first attenuation network 32 according to the device parameters that the power output of target power scope and wireless communication module 31 is adjusted first attenuation network 32 so that the power output of wireless communication module 31 after 32 decay of first attenuation network in the target power scope.For instance, the power output of assumed wireless communication module 31 is Pchip, and the target power scope is that { Paim}, the pad value of first attenuation network 32 are A1, then should satisfy: Pchip-A1 ∈ { Paim}.
Can find out that for reaching same target power, when the pad value of first attenuation network 32 was big more, the power output of wireless communication module 31 can correspondingly improve.Further, through adjusting the device parameters of first attenuation network 32, the pad value that disposes first attenuation network 32 is to improve the power output of wireless communication module 31.Preferably, the power output of configuration wireless communication module 31 is saturated, and promptly wireless communication module 31 is operated under the peak power output state.
Further; Adjust the device parameters of first attenuation network 32; So that the power output of wireless communication module 31 is saturated or when saturated, the input power of antenna 33 reaches the maximum of said target power, like this; When the power output of wireless communication module 31 reduced, the input power that also can as far as possible guarantee antenna 33 was in said target power scope.Wherein, how many power outputs of wireless communication module 31 be near saturated for, can rule of thumb is worth to confirm by the designer.For instance, the peak power output of wireless communication module 31 is 10 dBm dBm, then when the power output of wireless communication module 31 during greater than 9dBm, can think that the power output of wireless communication module 31 is near saturated.
Further, because wireless communication module 31 is radio-frequency devices with antenna 33, electrical characteristic separately possibly not match, and can also between wireless communication module 31 and antenna 33, add matching network, so that the loss of radio signal transmission and distortion are minimum.Accordingly, this node can also comprise:
First matching network is arranged between wireless communication module 31 and the antenna 33, is used for the electrical characteristic of wireless communication module 31 and antenna 33 is mated.If also comprise Switch before the antenna 33, then first matching network can be arranged between wireless communication module 31 and the Switch, is used for the electrical characteristic of wireless communication module 31 and Switch is mated.In addition, can also a matching network be set between Switch and antenna 33 again, be used for the electrical characteristic of Switch and antenna 33 is mated.
Particularly, first matching network is made up of devices such as electric capacity, inductance.Usually, matching network and the attenuation network sequence of positions in transmission channel can be exchanged.Particularly, the output of attenuation network 32 is connected with antenna 33 or Switch through said first matching network, or the output of wireless communication module 31 is connected with attenuation network 32 through said first matching network.
The structural representation of another wireless communication node that Fig. 2 provides for the embodiment of the invention.As shown in Figure 2, on basis embodiment illustrated in fig. 1, wireless communication node also comprises:
PA34 is arranged between first attenuation network 32 and the antenna 33;
The power output of first attenuation network 32 is not more than the maximal input of PA34.
Particularly, the power output of first attenuation network 32 is the power after the power output of wireless communication module 31 is decayed.The power output of assumed wireless communication module 31 is Pchip; The target power scope is that { Paim}, the pad value of first attenuation network 32 are A1, and the maximal input of PA34 is Pin; The gain of PA34 is G; The peak power output of PA34 is Pout, and then the power output through first attenuation network 32 is Pchip-A1, Pchip-A1≤Pin.Simultaneously, in order to satisfy the requirement of target power, if the power output unsaturation of PA34, promptly the power output of PA34 is Pchip-A1+G＜Pout, and then the input power of antenna 33 also is Pchip-A1+G, and Pchip-A1+G ∈ { Paim}; If the power output of PA34 is saturated, i.e. Pchip-A1+G >=Pout, then the input power of antenna 33 is Pout, and Pout ∈ { Paim}.
Can find out that under the unsaturated situation of the power output of PA34, for reaching same target power, when the pad value of first attenuation network 32 was big more, the power output of wireless communication module 31 can correspondingly improve.Further, through adjusting the device parameters of first attenuation network 32, the pad value that disposes first attenuation network 32 is to improve the power output of wireless communication module 31.Preferably, the power output of configuration wireless communication module 31 is saturated, and promptly wireless communication module 31 is operated under the peak power output state.
Because the power output of PA also can temperature influence; In general; The gain of PA is big more; Temperature influence is also big more, and the power output of the power output of PA and wireless communication module normally superposes by Influence of Temperature but not offset, and causes gross output the altering a great deal under high and low temperature state of wireless communication node.In realizing process of the present invention, the inventor finds through experiment: the power output of PA is big more, and its power output receives Influence of Temperature more little, that is, the power output of PA is under saturation condition, and temperature influence is minimum.
The peak power output of supposing PA34 is Pout, is then satisfying under the situation of Pchip-A1+G >=Pout, and the power output of PA34 is saturated.Can find out that the pad value of first attenuation network 32 is more little, the power output of PA34 is more approaching saturated.Further, through adjusting the device parameters of first attenuation network 32, the pad value that disposes first attenuation network 32 is to improve the power output of PA34.Preferably, the power output of configuration PA34 is saturated, even the power output of PA34 is the peak power output of PA34.
Further, adjust the device parameters of first attenuation network 32, so that the power output of wireless communication module 31 is saturated or when saturated; The input power of antenna 33 reaches the maximum of said target power, perhaps, makes the power output of PA34 saturated or when saturated; The input power of antenna 33 reaches the maximum of said target power; Like this, when the power output of wireless communication module 31 or PA34 reduced, the input power that also can as far as possible guarantee antenna 33 was in said target power scope.Alternatively, adjust the device parameters of first attenuation network 32, so that the power output of wireless communication module 31 and PA34 is all saturated or when saturated, the input power of antenna 33 reaches the maximum of said target power.Wherein, how many power outputs of PA34 be near saturated for, can rule of thumb is worth to confirm by the designer.For instance, the peak power output of PA34 is 20dBm, then when the power output of PA34 during greater than 19dBm, can think that the power output of PA34 is near saturated.
Further; Because wireless communication module 31, PA34 and antenna 33 are radio-frequency devices; Electrical characteristic separately possibly not match; Can also be between wireless communication module 31 and PA34, and add matching network between PA34 and the antenna 33, so that the loss of radio signal transmission and distortion are minimum.Accordingly, this node can also comprise:
Second matching network is arranged between wireless communication module 31 and the PA34, is used for the electrical characteristic of wireless communication module 31 and PA34 is mated;
The 3rd matching network is arranged between PA34 and the antenna 33, is used for the electrical characteristic of PA34 and antenna 33 is mated.
Particularly, second matching network, the 3rd matching network are formed by devices such as electric capacity, inductance.Usually, matching network and the attenuation network sequence of positions in transmission channel can be exchanged.Particularly, the output of first attenuation network 32 is connected with PA34 through said second matching network, or the output of wireless communication module 31 is connected with first attenuation network 32 through said second matching network; PA34 is connected with antenna 33 through said the 3rd matching network.If also comprise Switch before the antenna 33, then the 3rd matching network can be arranged between PA34 and the Switch, is used for the electrical characteristic of PA34 and Switch is mated.In addition, can also a matching network be set between Switch and antenna 33 again, be used for the electrical characteristic of Switch and antenna 33 is mated.
The structural representation of another wireless communication node that Fig. 3 provides for the embodiment of the invention.As shown in Figure 3, on basis embodiment illustrated in fig. 2, wireless communication node also comprises:
Second attenuation network 35 is arranged between PA34 and the antenna 33.
The power output of assumed wireless communication module 31 is Pchip, and the target power scope is that { Paim}, the pad value of first attenuation network 32 are A1; The pad value of second attenuation network 35 is A2; The maximal input of PA34 is Pin, and the gain of PA34 is G, and the peak power output of PA34 is Pout; In order to satisfy the maximal input requirement of PA34, then should satisfy: Pchip-A1≤Pin.Simultaneously, in order to satisfy the requirement of target power, if the power output unsaturation of PA34, promptly the power output of PA34 is Pchip-A1+G＜Pout, and then the input power of antenna 33 is Pchip-A1+G-A2, and Pchip-A1+G-A2 ∈ { Paim}; If the power output of PA34 is saturated, i.e. Pchip-A1+G >=Pout, this moment, the power output of PA34 was Pout, and the power after 35 decay of second attenuation network is Pout-A2, and promptly the input power of antenna 33 is Pout-A2, and Pout-A2 ∈ { Paim}.
Can find out that under the unsaturated situation of the power output of PA34, for reaching same target power, when the pad value of first attenuation network 32 was big more, the power output of wireless communication module 31 can correspondingly improve.Further, through adjusting the device parameters of first attenuation network 32, the pad value that disposes first attenuation network 32 is to improve the power output of wireless communication module 31.Preferably, the power output of configuration wireless communication module 31 is saturated, and promptly wireless communication module 31 is operated under the peak power output state.
It can also be seen that in addition, under the unsaturated situation of the power output of PA34, for reaching same target power; When the pad value of second attenuation network 35 is big more; The power output of PA34 can correspondingly improve, and correspondingly, the power output of wireless communication module 31 also can improve.Further, through adjusting the device parameters of second attenuation network 35, the pad value that disposes second attenuation network 35 is to improve the power output of wireless communication module 31 and PA34.Preferably, the power output of configuration PA is saturated, even the power output of PA34 is the peak power output of PA34.
Further, adjust the device parameters of first attenuation network 32, so that the power output of wireless communication module 31 is saturated or when saturated; The input power of antenna 33 reaches the maximum of said target power, perhaps, makes the power output of PA34 saturated or when saturated; The input power of antenna 33 reaches the maximum of said target power; Like this, when the power output of wireless communication module 31 or PA34 reduced, the input power that also can as far as possible guarantee antenna 33 was in said target power scope.Alternatively, adjust the device parameters of first attenuation network 32, so that the power output of wireless communication module 31 and PA34 is all saturated or when saturated, the input power of antenna 33 reaches the maximum of said target power.
Further; Because wireless communication module 31, PA34 and antenna 33 are radio-frequency devices; Electrical characteristic separately possibly not match; Can also be between wireless communication module 31 and PA34, and add matching network between PA34 and the antenna 33, so that the loss of radio signal transmission and distortion are minimum.Accordingly, this node can also comprise:
Second matching network is arranged between wireless communication module 31 and the PA34, is used for the electrical characteristic of wireless communication module 31 and PA34 is mated;
The 3rd matching network is arranged between PA34 and the antenna 33, is used for the electrical characteristic of PA34 and antenna 33 is mated.
Particularly, second matching network, the 3rd matching network are formed by devices such as electric capacity, inductance.Usually, matching network and the attenuation network sequence of positions in transmission channel can be exchanged.Particularly, the output of first attenuation network 32 is connected with PA34 through said second matching network, or the output of wireless communication module 31 is connected with first attenuation network 32 through said second matching network; PA34 is connected with second attenuation network 35 through said the 3rd matching network, or second attenuating network 35 is connected with antenna 33 through said the 3rd matching network.
If also comprise Switch before the antenna 33, then the 3rd matching network can be arranged between PA34 and the Switch, is used for the electrical characteristic of PA34 and Switch is mated.In addition, can also a matching network be set between Switch and antenna 33 again, be used for the electrical characteristic of Switch and antenna 33 is mated.
The structural representation of another wireless communication node that Fig. 4 provides for the embodiment of the invention.As shown in Figure 4, on basis embodiment illustrated in fig. 1, said wireless communication node can also comprise:
PA34 is arranged between the output and first attenuation network 32 of wireless communication module 31, and the power output of wireless communication module 31 is not more than the maximal input of PA34.
The power output of assumed wireless communication module 31 is Pchip; The target power scope is that { Paim}, the pad value of first attenuation network 32 are A1, and the maximal input of PA34 is Pin; The gain of PA34 is G; The peak power output of PA34 is Pout, in order to satisfy the maximal input requirement of PA34, then should satisfy: Pchip≤Pin.In order to satisfy the requirement of target power; If the power output unsaturation of PA34, promptly the power output Pchip+G of PA34＜Pout is Pchip+G-A1 through the power after 32 decay of first attenuation network then; The input power that is antenna 33 is Pchip+G-A1, and Pchip+G-A1 ∈ { Paim}; If the power output of PA34 is saturated, promptly satisfy Pchip+G >=Pout, this moment, the power output of PA34 was Pout, was Pout-A1 through the power after 32 decay of first attenuation network then, promptly the input power of antenna 33 is Pout-A1, and Pout-A1 ∈ { Paim}.
It can also be seen that, under the unsaturated situation of the power output of PA34, for reaching same target power; When the pad value of first attenuation network 32 is big more; The power output of PA34 can correspondingly improve, and correspondingly, the power output of wireless communication module 31 also can improve.Further, through adjusting the device parameters of first attenuation network 32, the pad value that disposes first attenuation network 32 is to improve the power output of wireless communication module 31 and PA34.Preferably, the power output of configuration wireless communication module 31 is saturated, and promptly wireless communication module 31 is operated under the peak power output state.
Preferably, the power output of configuration PA is saturated, even the power output of PA34 is the peak power output of PA34.
Further, adjust the device parameters of first attenuation network 32, so that the power output of wireless communication module 31 is saturated or when saturated; The input power of antenna 33 reaches the maximum of said target power, perhaps, makes the power output of PA34 saturated or when saturated; The input power of antenna 33 reaches the maximum of said target power; Like this, when the power output of wireless communication module 31 or PA34 reduced, the input power that also can as far as possible guarantee antenna 33 was in said target power scope.Alternatively, adjust the device parameters of first attenuation network 32, so that the power output of wireless communication module 31 and PA34 is all saturated or when saturated, the input power of antenna 33 reaches the maximum of said target power.
Further; Because wireless communication module 31, PA34 and antenna 33 are radio-frequency devices; Electrical characteristic separately possibly not match; Can also be between wireless communication module 31 and PA34, and add matching network between PA34 and the antenna 33, so that the loss of radio signal transmission and distortion are minimum.Accordingly, this node can also comprise:
Second matching network is arranged between wireless communication module 31 and the PA34, is used for the electrical characteristic of wireless communication module 31 and PA34 is mated;
The 3rd matching network is arranged between PA34 and the antenna 33, is used for the electrical characteristic of PA34 and antenna 33 is mated.
Particularly, second matching network, the 3rd matching network are formed by devices such as electric capacity, inductance.Usually, matching network and the attenuation network sequence of positions in transmission channel can be exchanged.Particularly, said PA is connected with the output of wireless communication module 31 through said second matching network; The output of first attenuation network 32 is connected with antenna 33 through said the 3rd matching network, or PA34 is connected with said first attenuation network 32 through said the 3rd matching network.If also comprise Switch before the antenna 33, then the 3rd matching network can be arranged between PA34 and the Switch, is used for the electrical characteristic of PA34 and Switch is mated.In addition, can also a matching network be set between Switch and antenna 33 again, be used for the electrical characteristic of Switch and antenna 33 is mated.
The embodiment of the invention is employed in the technological means that attenuation network is set before wireless communication module and the antenna; Make the power output of wireless communication module can be provided with than big under the situation that does not have attenuation network; Because bigger its temperature influence of power output of wireless communication module is more little, correspondingly, the gross output of wireless communication node receives Influence of Temperature also more little; Therefore; The embodiment of the invention can reduce the influence of temperature to power output, and scheme realizes only adding attenuation network and do a little device parameters adjustment that realization is simple, cost is low.Further; The embodiment of the invention can also be through the device parameters adjustment of attenuation network; Make the power output of PA can be provided with than big under the situation that does not have attenuation network; Because bigger its temperature influence of power output of PA is more little, therefore, the gross output that can reduce wireless communication node further receives Influence of Temperature.
Fig. 5 is the sketch map of a kind of application scenarios of the embodiment of the invention.As shown in Figure 5, the peak power output of Zigbee chip is MaxPchip, and the target power scope at Switch place is { Paim}; Wherein maximum is MAX{Paim}, and the gain of PA is G, and the peak power output of PA is Pout; Pout＞MAX{Paim}; When the output of PA was unsaturated, promptly during A＞MaxPchip-Pout+G, the pad value A of adjustment attenuation network satisfied: A=MaxPchip-MAX{Paim}+G; Then when the power output output saturated and PA of Zigbee chip is unsaturated, obtain target power maximum MAX{Paim} at the Switch place.Even the Switch place need not to obtain target power maximum MAX{Paim}; The power output of Zigbee chip and PA also can be than big under the situation that does not have attenuation network in the scene shown in Figure 5; Therefore, the power output (being the power at Switch place) that has reduced the Zigbee node receives Influence of Temperature.
Fig. 6 is the sketch map of another application scenarios of the embodiment of the invention.As shown in Figure 6, the peak power output of PA is Pout, and the target power scope is { Paim}; Wherein maximum is Max{Paim}; The pad value of attenuation network is A, and the pad value A of adjustment attenuation network satisfies A=Pout-Max{Paim}, and then the power output as PA is saturated; When promptly exporting, obtain target power maximum Max{Paim} at the Switch place with maximum power Pout.If the peak power output of Zigbee chip can not cause the input of PA saturated, promptly the peak power output of Zigbee chip is not more than the maximal input of PA, and then the Zigbee chip also can be exported with peak power output.For instance; The peak power output of PA is 25dbm; The gain of PA is 20dbm, and the maximal input of PA is 10dbm, and the peak power output that then needs only the Zigbee chip is between 5dbm and 10dbm; Just can be the Zigbee chip operation when peak power output, the power output of PA is also saturated.Even the Switch place need not to obtain target power maximum MAX{Paim}, the power output of Zigbee chip and PA also can be than big under the situation that does not have attenuation network in the scene shown in Figure 6, and therefore, the power output that has reduced the Zigbee node receives Influence of Temperature.
Fig. 7 is the sketch map of another application scenarios of the embodiment of the invention.As shown in Figure 7, the peak power output of Zigbee chip is MaxPchip, and the pad value of attenuation network 1 is A1; The gain of PA is G, and the peak power output of PA is Pout, and the maximal input of PA is Pin; The pad value of attenuation network 2 is A2, the target power scope be Paim}, wherein maximum is Max{Paim}; The pad value A1 of adjustment attenuation network 1 satisfies: A1>=MaxPchip-Pin, and A1≤MaxPchip-(Pout-G), and the pad value A2 of adjustment attenuation network 2 satisfies: A2=Pout-Max{Paim}; When then Zigbee chip and PA export with maximum power, obtain target power maximum Max{Paim} at the Switch place.Even the Switch place need not to obtain target power maximum MAX{Paim}, the power output of Zigbee chip and PA also can be than big under the situation that does not have attenuation network in the scene shown in Figure 7, and therefore, the power output that has reduced the Zigbee node receives Influence of Temperature.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.

Claims (16)

1. a wireless communication node is characterized in that, comprising:
Wireless communication module, first attenuation network and antenna;
Said first attenuation network is arranged between the output and said antenna of said wireless communication module; The input power of said antenna is in the target power scope.
2. node according to claim 1 is characterized in that, the pad value of said first attenuation network is configured to the power output that improves said wireless communication module.
3. node according to claim 2 is characterized in that the power output of said wireless communication module is saturated.
4. node according to claim 3 is characterized in that, the input power of said antenna is the maximum of said target power.
5. according to each described node among the claim 1-4, it is characterized in that, also comprise:
First matching network is arranged between the output and said antenna of said wireless communication module.
6. node according to claim 1 is characterized in that, also comprises:
Power amplifier is arranged between said first attenuation network and the said antenna;
The power output of said first attenuation network is not more than the maximal input of said power amplifier.
7. node according to claim 6 is characterized in that, the pad value of said first attenuation network is configured to the power output that improves said wireless communication module or said power amplifier.
8. according to claim 6 or 7 nodes, it is characterized in that, also comprise:
Second attenuation network is arranged between said power amplifier and the said antenna.
9. node according to claim 8 is characterized in that, the pad value of said second attenuation network is configured to the power output that improves said wireless communication module and power amplifier.
10. node according to claim 1 is characterized in that, also comprises:
Power amplifier is arranged between the output and said first attenuation network of said wireless communication module, and the power output of said wireless communication module is not more than the maximal input of said power amplifier.
11. node according to claim 10 is characterized in that, the pad value of said first attenuation network is configured to the power output that improves said wireless communication module and power amplifier.
12., it is characterized in that the power output of said wireless communication module is saturated according to claim 7,9,11 described nodes.
13., it is characterized in that the power output of said power amplifier is saturated according to claim 7,9,11 or 12 described nodes.
14., it is characterized in that the input power of said antenna is the maximum of said target power according to claim 12 or 13 described nodes.
15. according to each described node among the claim 6-14, it is characterized in that, also comprise:
Second matching network is arranged between the output and said power amplifier of said wireless communication module;
The 3rd matching network is arranged between said power amplifier and the said antenna.
16., it is characterized in that said wireless communication module is purple honeybee Zigbee chip, wireless fidelity WiFi chip or bluetooth BT chip according to each described node among the claim 1-15.
CN2012800001821A 2012-03-05 2012-03-05 Wireless communication node Pending CN102714516A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/071927 WO2013131229A1 (en) 2012-03-05 2012-03-05 Wireless communication node

Publications (1)

Publication Number Publication Date
CN102714516A true CN102714516A (en) 2012-10-03

Family

ID=46903943

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012800001821A Pending CN102714516A (en) 2012-03-05 2012-03-05 Wireless communication node

Country Status (2)

Country Link
CN (1) CN102714516A (en)
WO (1) WO2013131229A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105827328A (en) * 2015-01-07 2016-08-03 中国科学院空间科学与应用研究中心 Satellite carrying wave-particle interaction testing apparatus
CN112152661A (en) * 2020-09-07 2020-12-29 Oppo广东移动通信有限公司 Antenna assembly, radio frequency system and customer premises equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101217522A (en) * 2007-12-27 2008-07-09 华为技术有限公司 A method and device to determine the predistortion parameter of open loop, commutator and commutating method
CN101261261A (en) * 2008-04-08 2008-09-10 杭州电子科技大学 Water environment monitoring system based on ZigBee wireless technology
CN101730217A (en) * 2009-11-02 2010-06-09 华为终端有限公司 Improved radio frequency power control method and terminal
US20110095827A1 (en) * 2008-05-20 2011-04-28 Renesas Electronics Corporation Radio frequency (rf) power amplifier and rf power amplifier apparatus
CN102332931A (en) * 2010-06-03 2012-01-25 美国博通公司 Front end module with compensating duplexer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6297709B1 (en) * 1999-07-14 2001-10-02 Nokia Telecommunications Oy Temperature compensated variable attenuator
US7693491B2 (en) * 2004-11-30 2010-04-06 Broadcom Corporation Method and system for transmitter output power compensation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101217522A (en) * 2007-12-27 2008-07-09 华为技术有限公司 A method and device to determine the predistortion parameter of open loop, commutator and commutating method
CN101261261A (en) * 2008-04-08 2008-09-10 杭州电子科技大学 Water environment monitoring system based on ZigBee wireless technology
US20110095827A1 (en) * 2008-05-20 2011-04-28 Renesas Electronics Corporation Radio frequency (rf) power amplifier and rf power amplifier apparatus
CN101730217A (en) * 2009-11-02 2010-06-09 华为终端有限公司 Improved radio frequency power control method and terminal
CN102332931A (en) * 2010-06-03 2012-01-25 美国博通公司 Front end module with compensating duplexer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105827328A (en) * 2015-01-07 2016-08-03 中国科学院空间科学与应用研究中心 Satellite carrying wave-particle interaction testing apparatus
CN105827328B (en) * 2015-01-07 2018-11-13 中国科学院空间科学与应用研究中心 A kind of experimental rig of the wave-particle interaction of Seeds of First Post-flight
CN112152661A (en) * 2020-09-07 2020-12-29 Oppo广东移动通信有限公司 Antenna assembly, radio frequency system and customer premises equipment

Also Published As

Publication number Publication date
WO2013131229A1 (en) 2013-09-12

Similar Documents

Publication Publication Date Title
CN105915256B (en) Front-end integrated circuit for WLAN applications
US9484150B2 (en) Multi-mode power amplifying circuit, and multi-mode wireless transmission module and method thereof
CN102457458B (en) The implementation method of a kind of base station digital pre-distortion and device
CN104124929A (en) Apparatus and methods for envelope shaping in power amplifier systems
CN105099414A (en) Rf transformer based tx/rx integrated rf switch
CN103430603B (en) power amplifier, transceiver and base station
CN102611393B (en) Radio frequency power amplifier system having waveband switching function
CN104852749A (en) Radio frequency circuit and terminal equipment
US20160373144A1 (en) Power amplification module
CN108390691B (en) A kind of up-link carrier polyplant and mobile terminal
CN106922014B (en) Production calibration initial table generation method and system and mobile terminal
CN104640011A (en) Dual-frequency power amplification device applied to AP (access point) and AP equipment
Nakatani et al. A highly integrated RF frontend module including Doherty PA, LNA and switch for high SHF wide-band massive MIMO in 5G
CN104393843A (en) Doherty power amplifier adopting multistage auxiliary circuit amplifier
CN103746680B (en) Radio frequency switch
CN205232164U (en) Broadband high -gain flatness power amplifier
CN102714516A (en) Wireless communication node
CN103780209A (en) Multi-mode power amplifying circuit, multi-mode wireless transmitting module and method thereof
CN202435392U (en) Radio frequency module and mobile communication terminal thereof
CN104052410A (en) High-efficiency linear power amplification system and implementation method thereof
CN103067041B (en) Terminal and communication means thereof
US20150188501A1 (en) Power amplifying apparatus
CN106100591B (en) High-efficiency low-harmonic power amplifier and mobile terminal thereof
CN205212785U (en) Radio -frequency power amplifier
CN105680801B (en) A kind of multimode power amplifier and its mobile terminal for balancing heat dissipation

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: 20121003