CN103281758A - Wireless access method, device, network equipment, antennae and system - Google Patents
Wireless access method, device, network equipment, antennae and system Download PDFInfo
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- CN103281758A CN103281758A CN2013101689638A CN201310168963A CN103281758A CN 103281758 A CN103281758 A CN 103281758A CN 2013101689638 A CN2013101689638 A CN 2013101689638A CN 201310168963 A CN201310168963 A CN 201310168963A CN 103281758 A CN103281758 A CN 103281758A
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Abstract
The invention discloses a wireless access method, device, network equipment, antennae and system. In the wireless access system of an indoor distribution system WLAN (Wireless Local Area Network), an AP (Access Point) determines the attenuation regulation value of a downward radio-frequency signal correspondingly sent by each antenna according to the received signal strength value of each antenna, and the difference values of the received signal strength value of each antenna and the attenuation regulation value of each antenna are smaller than or equal to the predetermined signal strength threshold. The AP sends an attenuation control signal corresponding to the attenuation regulation value of each antenna to the antenna, the antenna attenuates the downward radio-frequency signal according to the attenuation control signal from the AP, and therefore the radio-frequency signal with high signal strength can be attenuated at the antenna side. After several times of attenuation control and regulation, the signal strength of the radio-frequency signal transmitted by each antenna is smaller than or equal to the predetermined signal strength threshold, and the access performance of the indoor distribution system WLAN can be increased.
Description
Technical field
The present invention relates to wireless communication system, particularly, relate to a kind of intelligence that is applied to chamber branch WLAN (wireless local area network) and divide radio switch-in method, device, the network equipment, antenna and system.
Background technology
At present, WLAN (wireless local area network) (WLAN, Wireless Local Area Network) becomes a focus in the radio network technique.WLAN is the local area network (LAN) that does not connect by any lead or transmission cable, and the media that uses radio frequency (RF, Radio Frequency) technology to transmit as data by radio wave, transmitting range generally has only tens meters.The backbone network of WLAN (wireless local area network) uses wire cable (Cable) usually, and wireless local network user inserts WLAN (wireless local area network) by one or more access points (AP, Access Points).
Fig. 1 shows a kind of intelligence that is applied to chamber branch WLAN (wireless local area network) and divides wireless access system, comprising: access point AP11 and at least one antenna 12, and it is indoor that antenna 12 is positioned at different buildings, connects by feeder line 13 between AP11 and the antenna 12; Particularly, AP11 is assigned as the way at least one way radiofrequency signal identical with the quantity of at least one antenna 12 that is connected with radiofrequency signal to be sent; And respectively at least one way radiofrequency signal is sent at least one antenna 12 correspondingly; Antenna 12 sends the radiofrequency signal from AP11.
The WLAN that disposes is divided in chamber as shown in Figure 1, can realize the power division to sent radiofrequency signal, the indoor signal of radiofrequency signal that provides of a plurality of buildings is provided to be covered, and, the signal strength signal intensity of radiofrequency signal all can not be subjected to the obstruct of building masonry wall and decay, signal between AP disturbs little, and the interference that is subjected to other communication system is little.
But, in system as shown in Figure 1, the intensity that sends to the radiofrequency signal of each antenna 12 from AP11 is impartial, but since antenna 12 to be positioned at different buildings indoor, distance between antenna 12 and the AP11 does not wait, can produce decay to signal after feeder line 13 transmission of radiofrequency signal through different distance length, thereby the intensity of the radiofrequency signal that each antenna 12 receives does not wait yet, especially the intensity of the radiofrequency signal received of distance A P11 antenna 12 farthest is the most weak, will cause the indoor signal strength signal intensity of each building different like this, the connection speed that causes each antenna 12 to insert site STA is different, also be the indoor access effect difference of each building, influence the access performance of WLAN.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of intelligence that is applied to chamber branch WLAN (wireless local area network) to divide radio switch-in method, device, the network equipment, antenna and system, in order to solve in the branch WLAN (wireless local area network) of existing chamber, the radiofrequency signal that antenna receives influences the problem of the access performance of WLAN because the decay that transmission produces causes the signal strength signal intensity of radiofrequency signal of antenna emission inconsistent.
Embodiment of the invention technical scheme is as follows:
A kind of intelligence that is applied to chamber branch WLAN (wireless local area network) is divided radio switch-in method, comprising: access point AP determines the reception signal strength values of each antenna respectively according to being positioned at the up radiofrequency signal of the indoor antenna of different buildings from each; Determine the decay regulated value of each antenna according to the reception signal strength values of each antenna; Wherein, the difference of the decay regulated value of the reception signal strength values of each antenna and each antenna all is less than or equal to the prearranged signal intensity threshold; AP determines the attenuation control signal corresponding with the decay regulated value of each antenna according to predetermined decay regulated value scope and the corresponding relation of attenuation control signal; AP sends corresponding attenuation control signal to each antenna respectively; Wherein, described attenuation control signal is used to indicate the antenna adjustments strength of transmitted signals.
A kind of intelligence that is applied to chamber branch WLAN (wireless local area network) is divided wireless access device, comprising: first determination module, be used for according to being positioned at the up radiofrequency signal of the indoor antenna of different buildings from each, and determine the reception signal strength values of each antenna respectively; Second determination module is for the decay regulated value of determining each antenna according to the reception signal strength values of each antenna; Wherein, the difference of the decay regulated value of the reception signal strength values of each antenna and each antenna all is less than or equal to the prearranged signal intensity threshold; The 3rd determination module is used for determining the attenuation control signal corresponding with the decay regulated value of each antenna according to predetermined decay regulated value scope and the corresponding relation of attenuation control signal; Sending module is used for sending corresponding attenuation control signal to each antenna respectively; Wherein, described attenuation control signal is used to indicate the antenna adjustments strength of transmitted signals.
A kind of network equipment comprises that the aforesaid intelligence that is applied to chamber branch WLAN (wireless local area network) divides wireless access device.
A kind of intelligence that is applied to chamber branch WLAN (wireless local area network) is tapped into method, comprising: be positioned at the indoor antenna of each building and receive attenuation control signal from access point AP respectively; Each antenna is decayed to the downlink radio-frequency signal from AP according to the attenuation control signal that receives separately respectively; Send the downlink radio-frequency signal after decaying.
A kind of antenna that is applied to chamber branch WLAN (wireless local area network) comprises: receiver module is used for receiving attenuation control signal and downlink radio-frequency signal from AP; Attenuation module is used for according to the attenuation control signal that described receiver module receives the downlink radio-frequency signal that described receiver module receives being decayed; Transmitter module is used for sending the downlink radio-frequency signal after described attenuation module decays.
A kind of intelligence that is applied to chamber branch WLAN (wireless local area network) is divided wireless access system, comprising: aforesaid access point AP and lay respectively at the indoor aforesaid antenna of each building connects by feeder line between AP and the antenna; AP according to the up radiofrequency signal that is positioned at the indoor antenna of different buildings from each, determines the reception signal strength values of each antenna respectively; Determine the decay regulated value of each antenna according to the reception signal strength values of each antenna; Wherein, the difference of the decay regulated value of the reception signal strength values of each antenna and each antenna all is less than or equal to the prearranged signal intensity threshold; According to predetermined decay regulated value scope and the corresponding relation of attenuation control signal, determine the attenuation control signal corresponding with the decay regulated value of each antenna; Send corresponding attenuation control signal to each antenna respectively; Antenna is used for receiving the attenuation control signal from AP; According to the attenuation control signal that receives the downlink radio-frequency signal from AP is decayed; Send the downlink radio-frequency signal after decaying.
Technical scheme according to the embodiment of the invention, divide in the WLAN (wireless local area network) wireless access system in the chamber, because the reception signal strength values that antenna receives up radiofrequency signal is roughly the same with the strength of transmitted signals value of antenna transmission downlink radio-frequency signal, AP is according to the reception signal strength values of each antenna, determine the decay regulated value of the transmission downlink radio-frequency signal of each antenna correspondence, the difference of the reception signal strength values of each antenna and the decay regulated value of each antenna all is less than or equal to the prearranged signal intensity threshold, and to the antenna transmission attenuation control signal corresponding with the decay regulated value of antenna, antenna is according to from the attenuation control signal of AP downlink radio-frequency signal being decayed, thereby can decay to the higher radiofrequency signal of signal strength signal intensity at antenna side, make through after the several times decay regulating and controlling, the signal strength signal intensity of the radiofrequency signal of each antenna emission is less than or equal to the prearranged signal intensity threshold, can improve the access performance that WLAN is divided in the chamber, and then can solve in the prior art, the radiofrequency signal that antenna receives influences the problem of the access performance of WLAN because the decay that transmission produces causes the signal strength signal intensity of radiofrequency signal of antenna emission inconsistent.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of writing, claims and accompanying drawing.
Description of drawings
Fig. 1 is the structured flowchart that the intelligence that is applied to chamber branch WLAN (wireless local area network) is divided wireless access system;
The intelligence that is applied to chamber branch WLAN (wireless local area network) that Fig. 2 provides for the embodiment of the invention is divided the workflow diagram of radio switch-in method;
The chamber of being applied to that Fig. 3 provides for the embodiment of the invention divides the intelligence of WLAN to divide the structured flowchart of wireless access device;
The chamber of being applied to that Fig. 4 provides for the embodiment of the invention divides the intelligence of WLAM to be tapped into the workflow diagram of method;
The structured flowchart of the antenna that is applied to chamber branch WLAN (wireless local area network) that Fig. 5 provides for the embodiment of the invention;
Another structured flowchart of the antenna that is applied to chamber branch WLAN (wireless local area network) that Fig. 6 provides for the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described, should be appreciated that embodiment described herein only is used for description and interpretation the present invention, and be not used in restriction the present invention.
In prior art, the radiofrequency signal that antenna receives is because the decay that transmission produces causes the signal strength signal intensity of radiofrequency signal of antenna emission inconsistent, influence the problem of the access performance of WLAN, the embodiment of the invention provides a kind of chamber of being applied to divide the intelligence of WLAN to divide radio access scheme, to address this problem.
In embodiments of the present invention, the implication of " intelligence branch " is for to carry out smart allocation to signal, the implication of " chamber of being applied to divides the intelligence of WLAN to divide wireless access system " be applied to chamber somatotype WLAN signal is carried out the wireless access system of smart allocation.
In the technical scheme that the embodiment of the invention provides, because the reception signal strength values that antenna receives up radiofrequency signal is roughly the same with the strength of transmitted signals value of antenna transmission downlink radio-frequency signal, AP determines the decay regulated value of antenna according to the reception signal strength values of antenna, the reception signal strength values of antenna is less than or equal to the prearranged signal intensity threshold with the difference of decay regulated value, and according to predetermined decay regulated value scope and the corresponding relation of attenuation control signal, send determined attenuation control signal to antenna, antenna is according to predetermined attenuation control signal and the corresponding relation of pad value, decay to sent downlink radio-frequency signal, thereby can decay to the higher radiofrequency signal of signal strength signal intensity at antenna side, make through after the several times decay regulating and controlling, the signal strength values of the radiofrequency signal of each antenna emission is less than or equal to the prearranged signal intensity threshold, can improve the access performance that WLAN is divided in the chamber, and then can solve in the prior art, the radiofrequency signal that antenna receives influences the problem of the access performance of WLAN because the decay that transmission produces causes the signal strength signal intensity of radiofrequency signal of antenna emission inconsistent.
Technical scheme to the embodiment of the invention is elaborated below.
The structure that the chamber of being applied to that the present invention proposes divides the intelligence of WLAN to divide wireless access system can be as shown in Figure 1, that is, this system comprises: access point AP11 and lay respectively at the indoor antenna of each building 12 connects by feeder line 13 between AP11 and the antenna 12;
AP11 according to the up radiofrequency signal that is positioned at the indoor antenna of different buildings 12 from each, determines the reception signal strength values of each antenna 12 respectively; Determine the decay regulated value of each antenna 12 according to the reception signal strength values of each antenna 12; Wherein, the difference of the decay regulated value of the reception signal strength values of each antenna 12 and each antenna 12 all is less than or equal to the prearranged signal intensity threshold; According to predetermined decay regulated value scope and the corresponding relation of attenuation control signal, determine the attenuation control signal corresponding with the decay regulated value of each antenna 12; Send corresponding attenuation control signal to each antenna 12 respectively;
Respectively the operation principle of AP11 and antenna 12 is described below.
The intelligence that is applied to chamber branch WLAN (wireless local area network) that Fig. 2 shows the embodiment of the invention to be provided is divided the workflow diagram of radio switch-in method, and this method is applied among the AP, and this method comprises:
Particularly, can determine the decay regulated value of antenna by following dual mode:
Mode one, AP are determined the decay regulated value corresponding with the reception signal strength values of each antenna respectively according to the corresponding relation of prearranged signal intensity value range and decay regulated value;
For example, the prearranged signal intensity value range is as shown in table 1 with the corresponding relation of decay regulated value, under the situation of signal strength values I less than-55dBm, corresponding decay regulated value is 0dB, when signal strength values I less than-50dBm and the situation more than or equal to-55dBm under, corresponding decay regulated value is 5dB, when signal strength values I less than-47dBm and the situation more than or equal to-50dBm under, corresponding decay regulated value is 8dB, under the situation of signal strength values I more than or equal to-47dBm, corresponding decay regulated value is 10dB;
If AP determines the reception signal strength values that obtains antenna and is-53dBm, determine that then the decay regulated value of this antenna is 5dB;
Table 1
| The signal strength values scope | The decay regulated value |
| -55dBm＞I | 0dB |
| -50dBm＞I≥-55dBm | 5dB |
| -47dBm＞I≥-50dBm | 8dB |
| I≥-47dBm | 10dB |
Mode two, AP are defined as the regulated value of decaying with the reception signal strength values of antenna and the difference between the prearranged signal intensity threshold;
For example, the prearranged signal intensity threshold is-55dBm, and the reception signal strength values that AP determines to obtain antenna is during for-53dBm, the decay regulated value of determining this antenna for-53dBm-(-55dBm)=2dB;
Again for example, the prearranged signal intensity threshold is-55dBm, then, through AP several times the strength of transmitted signals value of antenna is decayed after the regulating and controlling, AP determines that the reception signal strength values of the antenna that obtains and the difference of determined decay regulated value all are less than or equal to the prearranged signal intensity threshold, can make the strength of transmitted signals of each antenna suitable, thereby can improve the access performance of WLAN;
For example, predetermined decay regulated value scope and the corresponding relation of attenuation control signal are as shown in table 2, X is less than or equal under the situation of 0dB when the decay regulated value, corresponding attenuation control signal is 00, when decay regulated value X greater than 0dB and be less than or equal under the situation of 5dB, corresponding attenuation control signal is 01, when decay regulated value X greater than 5dB and be less than or equal under the situation of 8dB, corresponding attenuation control signal is 10, under the situation of decay regulated value X greater than 8dB, corresponding attenuation control signal is 11;
Table 2
| Decay regulated value scope | Attenuation control signal |
| X≤0dB | 00 |
| 0dB＜X≤5dB | 01 |
| 5dB＜X≤8dB | 10 |
| 8dB＜ |
11 |
Then, one when determining that the decay regulated value that obtains is 5dB by the way, and corresponding attenuation control signal is 01, and two when determining that the decay regulated value that obtains is 2dB by the way, and corresponding attenuation control signal is 01;
Particularly, AP is the control data wire by being connected with each antenna respectively, send attenuation control signal to each antenna, send the mode of attenuation control signal by the control data wire, a kind of implementation of passing through passive device regulating and controlling signal strength signal intensity in antenna can be provided, can carry out regulating and controlling simple and effectively;
AP can also send attenuation control signal to antenna by alternate manner, for example send attenuation control signal with wireless mode to antenna, but correspondingly need realize regulating and controlling by active device in antenna, such implementation complexity, equipment cost height are unfavorable for applying.
By above-mentioned processing procedure, AP determines the decay regulated value of antenna according to the reception signal strength values of antenna, and according to predetermined decay regulated value and the corresponding relation of attenuation control signal, send determined attenuation control signal to antenna, the decay regulated value that can effectively come the regulating and controlling antenna that strength of transmitted signals is compensated according to the reception signal strength signal intensity of antenna, thereby realize antenna is carried out effective control of signal attenuation, and through several times regulating and controlling (comprising periodic regulating and controlling or real-time regulating and controlling) afterwards, the reception signal strength values of antenna is less than or equal to the prearranged signal intensity threshold with the difference of decay regulated value, roughly quite (the strength of transmitted signals value that yet is each antenna is not identical to the strength of transmitted signals value that can make each antenna, but all be less than or equal to the prearranged signal intensity threshold), thereby improve the access performance of WLAN, and then can solve in the prior art, the radiofrequency signal that antenna receives influences the problem of the access performance of WLAN because the decay that transmission produces causes the signal strength signal intensity of radiofrequency signal of antenna emission inconsistent.
And, divide between the WLAN connecting system in adjacent a plurality of chambers as shown in Figure 1, because the strength of transmitted signals value that each chamber divides the WLAN connecting system all can realize antenna is roughly the same, therefore, can also avoid the interference between the adjacent WLAN connecting system further, also namely can avoid between adjacent two antennas that belong to different AP because signal strength values difference is too big the interference that the aerial signal that signal strength values is big produces the little aerial signal of signal strength values.
Based on identical inventive concept, the embodiment of the invention also provides a kind of chamber of being applied to divide the intelligence of WLAN to divide wireless access device, and preferably, this device is arranged in AP.
The chamber of being applied to that Fig. 3 shows the embodiment of the invention to be provided divides the intelligence of WLAN to divide the structured flowchart of wireless access device, comprising:
Perhaps, second determination module 32 specifically is used for: the reception signal strength values of antenna and the difference between the prearranged signal intensity threshold are defined as the regulated value of decaying;
The 3rd determination module 33 is connected to second determination module 32, is used for determining the attenuation control signal corresponding with the decay regulated value of each antenna according to predetermined decay regulated value scope and the corresponding relation of attenuation control signal;
Sending module 34 is connected to the 3rd determination module 33, is used for sending corresponding attenuation control signal to each antenna respectively; Wherein, described attenuation control signal is used to indicate the antenna adjustments strength of transmitted signals.
Preferably, all be connected with the control data wire between each antenna and the device shown in Figure 3; Then, sending module 34 is the control data wire by being connected with each antenna respectively, sends attenuation control signal to each antenna.
The operation principle of device shown in Figure 3 repeats no more as shown in Figure 2 here.
By device as shown in Figure 3, the also decay regulated value that can effectively come the regulating and controlling antenna that strength of transmitted signals is compensated according to the reception signal strength signal intensity of antenna, thereby realize antenna is carried out effective control of signal attenuation, and pass through after the real-time regulating and controlling of several times, can make the strength of transmitted signals value of each antenna roughly suitable, thereby improve the access performance of WLAN.
Operation principle to antenna describes below.
The workflow diagram that the chamber of being applied to that Fig. 4 shows the embodiment of the invention to be provided divides the intelligence of WLAM to be tapped into method, this method is applied in the antenna, and this method comprises:
Preferably, each antenna is the control data wire by being connected with AP respectively, receives the attenuation control signal from AP, in this way, can realize follow-up regulating and controlling to signal strength signal intensity by passive device in antenna;
Particularly, antenna is determined the pad value corresponding with the attenuation control signal that receives according to predetermined attenuation control signal and the corresponding relation of pad value; According to the pad value of determining the downlink radio-frequency signal from AP is decayed;
For example, predetermined attenuation control signal and the corresponding relation of pad value are as shown in table 3, when the attenuation control signal that receives when antenna is 00, downlink radio-frequency signal is carried out the decay of 0dB, namely do not decay, the transmitting power of the downlink radio-frequency signal that receives when antenna is during for-60dBm, and the attenuation control signal that receives is 00, and then the signal strength signal intensity of the downlink radio-frequency signal after the decay is-60dBm; When the control signal that receives when antenna is 01, downlink radio-frequency signal is carried out the decay of 5dB, when namely the transmitting power of the downlink radio-frequency signal that receives when antenna is for-53dBm, the attenuation control signal that receives is 01, and then the signal strength signal intensity of the downlink radio-frequency signal after the decay is-53dBm-5dB=-58dB; When the control signal that receives when antenna is 10, downlink radio-frequency signal is carried out the decay of 8dB, when namely the transmitting power of the downlink radio-frequency signal that receives when antenna is for-49dBm, the attenuation control signal that receives is 10, and then the signal strength signal intensity of the downlink radio-frequency signal after the decay is-49dBm-8dB=-54dB; When the control signal that receives when antenna is 11, downlink radio-frequency signal is carried out the decay of 10dB, when namely the transmitting power of the downlink radio-frequency signal that receives when antenna is for-45dBm, the attenuation control signal that receives is 11, and then the signal strength signal intensity of the downlink radio-frequency signal after the decay is-45dBm-10dB=-55dB.
Table 3
| Attenuation control signal | Pad value |
| 00 | 0dB |
| 01 | 5dB |
| 10 | |
| 11 | 10dB |
Downlink radio-frequency signal after step 403, the transmission decay;
By method as shown in Figure 4, can be at antenna side according to the attenuation control signal from AP, downlink radio-frequency signal is carried out the decay corresponding with attenuation control signal, thereby make the reception signal strength values of each antenna and the difference of decay regulated value be less than or equal to the prearranged signal intensity threshold, make the strength of transmitted signals value of each antenna roughly suitable, thereby improve the access performance of WLAN, and then can solve in the prior art, the radiofrequency signal that antenna receives influences the problem of the access performance of WLAN because the decay that transmission produces causes the signal strength signal intensity of radiofrequency signal of antenna emission inconsistent.
Based on identical inventive concept, the embodiment of the invention also provides a kind of antenna.
Fig. 5 shows the structured flowchart of the antenna that is applied to chamber branch WLAN (wireless local area network) that the embodiment of the invention provides, and this antenna comprises:
Preferably, be connected with the control data wire between described antenna and the AP; Then, the control data wire of receiver module 51 by being connected with AP receives the attenuation control signal from AP;
Particularly, as shown in Figure 6, attenuation module 52 can realize that attenuation module 52 comprises by passive device: control switch 521 and at least two attenuators 522, each attenuator 522 has predetermined pad value, and control switch 521 and each attenuator 522 all are connected to receiver module 51;
Described control switch 521 is used for determining the attenuator 522 corresponding with the attenuation control signal that receives according to predetermined attenuation control signal and the corresponding relation of attenuator 522, and is communicated with the path of determined attenuator 522 and transmitter module 53;
For example, predetermined attenuation control signal and the corresponding relation of attenuator 522 are: attenuation control signal 00 is corresponding to first attenuator 522, the predetermined attenuation value of first attenuator 522 is 0dB, attenuation control signal 01 is corresponding to second attenuator 522, the predetermined attenuation value of second attenuator 522 is 5dB, attenuation control signal 10 is corresponding to the 3rd attenuator 522, the predetermined attenuation value of the 3rd attenuator 522 is 8dB, attenuation control signal 11 is 10dB corresponding to the predetermined attenuation value of 522, the four attenuators 522 of the 4th attenuator;
When control switch 521 received attenuation control signal 00, control was communicated with the path of first attenuator 522 and transmitting antenna 53;
Attenuator 522 is used for the downlink radio-frequency signal from AP is decayed; In concrete the application, attenuator 522 can be T type power attenuator or the capable power attenuator of π;
The operation principle of Fig. 5 or antenna shown in Figure 6 repeats no more as shown in Figure 4 here.
By Fig. 5 or antenna shown in Figure 6, also can be according to the attenuation control signal from AP, downlink radio-frequency signal is carried out the decay corresponding with attenuation control signal, thereby make the reception signal strength values of each antenna and the difference of decay regulated value be less than or equal to the prearranged signal intensity threshold, make the strength of transmitted signals value of each antenna roughly suitable, thereby improve the access performance of WLAN, and then can solve in the prior art, the radiofrequency signal that antenna receives influences the problem of the access performance of WLAN because the decay that transmission produces causes the signal strength signal intensity of radiofrequency signal of antenna emission inconsistent.
In sum, technical scheme according to the embodiment of the invention, divide in the WLAN (wireless local area network) wireless access system in the chamber, because the reception signal strength values that antenna receives up radiofrequency signal is roughly the same with the strength of transmitted signals value of antenna transmission downlink radio-frequency signal, AP is according to the reception signal strength values of each antenna, determine the decay regulated value of the transmission downlink radio-frequency signal of each antenna correspondence, the difference of the reception signal strength values of each antenna and the decay regulated value of each antenna all is less than or equal to the prearranged signal intensity threshold, and to the antenna transmission attenuation control signal corresponding with the decay regulated value of antenna, antenna is according to from the attenuation control signal of AP downlink radio-frequency signal being decayed, thereby can decay to the higher radiofrequency signal of signal strength signal intensity at antenna side, make through after the several times decay regulating and controlling, the signal strength signal intensity of the radiofrequency signal of each antenna emission is less than or equal to the prearranged signal intensity threshold, can improve the access performance that WLAN is divided in the chamber, and then can solve in the prior art, the radiofrequency signal that antenna receives influences the problem of the access performance of WLAN because the decay that transmission produces causes the signal strength signal intensity of radiofrequency signal of antenna emission inconsistent.
One of ordinary skill in the art will appreciate that and realize that all or part of step that above-described embodiment method is carried is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, this program comprises one of step or its combination of method embodiment when carrying out.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing module, also can be that the independent physics in each unit exists, and also can be integrated in the module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If described integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software embodiment or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form of the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make and carry out the sequence of operations step producing computer implemented processing at computer or other programmable devices, thereby be provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame in the instruction that computer or other programmable devices are carried out.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (14)
1. an intelligence that is applied to chamber branch WLAN (wireless local area network) is divided radio switch-in method, it is characterized in that, comprising:
Access point AP determines the reception signal strength values of each antenna respectively according to being positioned at the up radiofrequency signal of the indoor antenna of different buildings from each;
Determine the decay regulated value of each antenna according to the reception signal strength values of each antenna; Wherein, the difference of the decay regulated value of the reception signal strength values of each antenna and each antenna all is less than or equal to the prearranged signal intensity threshold;
AP determines the attenuation control signal corresponding with the decay regulated value of each antenna according to predetermined decay regulated value scope and the corresponding relation of attenuation control signal;
AP sends corresponding attenuation control signal to each antenna respectively; Wherein, described attenuation control signal is used to indicate the antenna adjustments strength of transmitted signals.
2. method according to claim 1 is characterized in that, determines specifically to comprise the decay regulated value of antenna according to the reception signal strength values of antenna:
According to the corresponding relation of prearranged signal intensity value range and decay regulated value, determine the decay regulated value corresponding with the reception signal strength values of each antenna respectively; Perhaps,
The reception signal strength values of antenna and the difference between the prearranged signal intensity threshold are defined as the regulated value of decaying.
3. method according to claim 1 and 2 is characterized in that, AP sends attenuation control signal to each antenna respectively, specifically comprises:
AP is the control data wire by being connected with each antenna respectively, sends attenuation control signal to each antenna.
4. an intelligence that is applied to chamber branch WLAN (wireless local area network) is divided wireless access device, it is characterized in that, comprising:
First determination module is used for according to being positioned at the up radiofrequency signal of the indoor antenna of different buildings from each, determines the reception signal strength values of each antenna respectively;
Second determination module is for the decay regulated value of determining each antenna according to the reception signal strength values of each antenna; Wherein, the difference of the decay regulated value of the reception signal strength values of each antenna and each antenna all is less than or equal to the prearranged signal intensity threshold;
The 3rd determination module is used for determining the attenuation control signal corresponding with the decay regulated value of each antenna according to predetermined decay regulated value scope and the corresponding relation of attenuation control signal;
Sending module is used for sending corresponding attenuation control signal to each antenna respectively; Wherein, described attenuation control signal is used to indicate the antenna adjustments strength of transmitted signals.
5. device according to claim 4 is characterized in that, described second determination module specifically is used for:
According to the corresponding relation of prearranged signal intensity value range and decay regulated value, determine the decay regulated value corresponding with the reception signal strength values of each antenna respectively; Perhaps,
The reception signal strength values of antenna and the difference between the prearranged signal intensity threshold are defined as the regulated value of decaying.
6. according to each described device in claim 4 or 5, it is characterized in that, all be connected with the control data wire between each described antenna and the described device; Then,
Described sending module specifically is used for: the control data wire by being connected with each antenna respectively sends attenuation control signal to each antenna.
7. a network equipment is characterized in that, comprises as each described intelligence that is applied to chamber branch WLAN (wireless local area network) in the claim 4 to 6 dividing wireless access device.
8. an intelligence that is applied to chamber branch WLAN (wireless local area network) is tapped into method, it is characterized in that, comprising:
Be positioned at the indoor antenna of each building and receive attenuation control signal from access point AP respectively;
Each antenna is decayed to the downlink radio-frequency signal from AP according to the attenuation control signal that receives separately respectively;
Send the downlink radio-frequency signal after decaying.
9. method according to claim 8 is characterized in that, antenna is decayed to the downlink radio-frequency signal from AP according to the attenuation control signal that receives, and specifically comprises:
According to predetermined attenuation control signal and the corresponding relation of pad value, determine the pad value corresponding with the attenuation control signal that receives;
According to the pad value of determining the downlink radio-frequency signal from AP is decayed.
10. according to Claim 8 or 9 described methods, it is characterized in that each antenna receives the attenuation control signal from access point AP respectively, specifically comprises:
Each antenna is the control data wire by being connected with AP respectively, receives the attenuation control signal from AP.
11. an antenna that is applied to chamber branch WLAN (wireless local area network) is characterized in that, comprising:
Receiver module is used for receiving attenuation control signal and downlink radio-frequency signal from AP;
Attenuation module is used for according to the attenuation control signal that described receiver module receives the downlink radio-frequency signal that described receiver module receives being decayed;
Transmitter module is used for sending the downlink radio-frequency signal after described attenuation module decays.
12. antenna according to claim 11 is characterized in that, described attenuation module comprises: control switch and at least two attenuators, and each attenuator has predetermined pad value, and each attenuator all is connected to described receiver module;
Described control switch is used for determining the attenuator corresponding with the attenuation control signal that receives according to predetermined attenuation control signal and the corresponding relation of attenuator, and is communicated with the path of determined attenuator and transmitting antenna;
Attenuator is used for the downlink radio-frequency signal that described receiver module receives is decayed.
13. according to claim 11 or 12 described antennas, it is characterized in that, be connected with the control data wire between described antenna and the AP; Then,
Described receiver module specifically is used for: by the control data wire that is connected with AP, receive the attenuation control signal from AP.
14. an intelligence that is applied to chamber branch WLAN (wireless local area network) is divided wireless access system, it is characterized in that, comprise: access point AP as claimed in claim 7 and lay respectively at each building indoor as each described antenna in the claim 11～13, connect by feeder line between AP and the antenna;
AP according to the up radiofrequency signal that is positioned at the indoor antenna of different buildings from each, determines the reception signal strength values of each antenna respectively; Determine the decay regulated value of each antenna according to the reception signal strength values of each antenna; Wherein, the difference of the decay regulated value of the reception signal strength values of each antenna and each antenna all is less than or equal to the prearranged signal intensity threshold; According to predetermined decay regulated value scope and the corresponding relation of attenuation control signal, determine the attenuation control signal corresponding with the decay regulated value of each antenna; Send corresponding attenuation control signal to each antenna respectively;
Antenna is used for receiving the attenuation control signal from AP; According to the attenuation control signal that receives the downlink radio-frequency signal from AP is decayed; Send the downlink radio-frequency signal after decaying.
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| CN103281758B (en) | 2016-01-27 |
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Address after: Cangshan District of Fuzhou City, Fujian province 350002 Jinshan Road No. 618 Garden State Industrial Park 19 floor Patentee after: RUIJIE NETWORKS Co.,Ltd. Address before: Cangshan District of Fuzhou City, Fujian province 350002 Jinshan Road No. 618 Garden State Industrial Park 19 floor Patentee before: Beijing Star-Net Ruijie Networks Co.,Ltd. |
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