CN103298052A - Antenna configuration method and device and access point - Google Patents

Antenna configuration method and device and access point Download PDF

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Publication number
CN103298052A
CN103298052A CN2013101656992A CN201310165699A CN103298052A CN 103298052 A CN103298052 A CN 103298052A CN 2013101656992 A CN2013101656992 A CN 2013101656992A CN 201310165699 A CN201310165699 A CN 201310165699A CN 103298052 A CN103298052 A CN 103298052A
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client
wifi
antenna
antenna group
index information
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CN2013101656992A
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杨宇
沈猛
张科
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Huawei Device Co Ltd
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Huawei Device Co Ltd
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Abstract

The invention provides an antenna configuration method and device and an access point. The antenna configuration method comprises the steps that when the fact that the state of a client side which is accessed to the wireless fidelity (WiFi) access point (AP) is changed is detected, index information between at least two antenna sets of the WiFi AP and the client side is scanned respectively; an antenna set is selected for the client side according to the acquired index information; the WiFi AP is switched to the selected antenna set and is connected with the client side. According to the antenna configuration method, the optimal antenna set is selected according to the practical performance of the client side accessed to the WiFi AP on each antenna set, the best covering effect is achieved, WiFi handling capacity performance is improved, and accordingly user experience is improved, and client requirements are met.

Description

Antenna configuration method and device and access point
Technical Field
The present invention relates to wireless communication antenna technologies, and in particular, to an antenna configuration method and apparatus, and an access point.
Background
Wireless Fidelity (WiFi) is a Wireless network communication technology that can connect terminals such as personal computers and handheld devices to each other in a Wireless manner and provide a high data transmission rate. With the popularization of WiFi in daily life, the devices supporting WiFi are more and more applied, and users can conveniently access the Internet through WiFi devices.
At present, due to the limitations of antenna design, transmission power and surrounding environment of a WiFi Access Point (AP), some performance blind areas exist in the coverage area of the WiFi Access Point, so that the WiFi performance is significantly reduced after a WiFi client enters the area, and the use requirements of users cannot be met. Under the high-speed wireless local area network standard protocol, the existing WiFi AP products use a set of fixed physical antennas for each transmitted or received signal, and achieve the optimal result by performing rate selection of different modulation modes in the software part.
In practical applications, the physical direction of the WiFi AP or the WiFi client frequently changes, or the logical spatial angle changes, which may cause the path to change. Due to the change of the path, the transmission throughput is easy to change, which causes performance fluctuation, cannot exert the highest performance of the WiFi network, and cannot obtain better user experience to meet the customer requirements.
Disclosure of Invention
The invention provides an antenna configuration method, an antenna configuration device and an access point, which are used for exerting the high performance of a WiFi AP network and meeting the requirements of customers.
In a first aspect, the present invention provides a method for configuring an antenna, including:
when detecting that the state of a client accessed to a wireless fidelity (WiFi) Access Point (AP) is changed, respectively scanning index information between at least two antenna groups of the WiFi AP and the client;
selecting an antenna group for the client according to the acquired index information;
the WiFi AP is switched to the selected antenna group to connect the client.
In a first possible implementation manner of the first aspect, the detecting that the client state of the WiFi AP changes includes:
detecting that the position of a client of the WiFi AP changes;
detecting that a new client is accessed to the WiFi AP;
detecting that a client of a WiFi AP is disconnected with the WiFi AP; and/or
And detecting that the index information of the client of the WiFi AP is lower than a set threshold value.
In a second possible implementation manner of the first aspect, the scanning index information between at least two antenna groups of the WiFi AP and a client respectively includes:
and aiming at each antenna group connected with the WiFi AP, collecting the received signal intensity, the packet error rate and/or the signal-to-noise ratio of the client as the index information through the antenna group within a set time.
In a third possible implementation manner of the first aspect, selecting an antenna group for the client according to the obtained indicator information includes:
selecting at least one antenna group for the client according to the acquired index information;
and selecting an optimal antenna group for the client according to the service volume of the client from the selected antenna groups.
In a fourth possible implementation manner of the first aspect, selecting an antenna group for the client according to the obtained indicator information includes:
multiplying the obtained index information by a weighting coefficient, and adding the obtained index information to obtain an evaluation score of each antenna group;
and selecting the antenna group with the highest evaluation score for the client according to the evaluation score of each antenna group.
In a second aspect, the present invention provides an apparatus for antenna configuration, comprising:
the detection module is used for detecting the state of a client accessed to the WiFi AP;
the scanning module is used for scanning index information between at least two antenna groups of the WiFi AP and a client;
the selection module is used for selecting an antenna group for the client according to the acquired index information; the WiFi AP is switched to the selected antenna group to connect the client.
In a first possible implementation manner of the second aspect, the detection module includes:
the position detection unit is used for detecting that the position of the client of the WiFi AP changes;
an access detection unit, configured to detect that a new client accesses the WiFi AP;
the link detection unit is used for detecting that the client of the WiFi AP is disconnected with the WiFi AP; and/or
The threshold detection unit is used for detecting that the index information of the client of the WiFi AP is lower than a set threshold;
in a second possible implementation form of the second aspect,
the scanning module is specifically configured to, for each antenna group of the WiFi AP, acquire, as the index information, a received signal strength, a packet error rate, and/or a signal-to-noise ratio of the client through the antenna group within a set time.
In a third possible implementation manner of the second aspect, the selecting module includes:
the first selection unit is used for selecting at least one antenna group for the client according to the acquired index information; selecting an optimal antenna group for the client according to the service volume of the client from the selected antenna groups;
the second selection unit is used for multiplying the obtained index information by a weighting coefficient, and adding the obtained index information to be used as an evaluation score of each antenna group; and selecting the antenna group with the highest evaluation score for the client according to the evaluation score of each antenna group.
In a third aspect, an embodiment of the present invention provides a wifi access point, which includes at least two antenna groups and further includes an apparatus for configuring an antenna provided in any embodiment of the present invention.
According to the antenna configuration method provided by the invention, the optimal antenna group is selected according to the actual performance of the client side accessed to the WiFi AP on each antenna group, the best coverage effect is achieved, the WiFi throughput performance is improved, and therefore, the user experience is improved and the client requirements are met.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a flowchart of a first embodiment of a method for antenna configuration according to the present invention;
fig. 2 is a flowchart of a second embodiment of a method for antenna configuration according to the present invention;
fig. 3 is a schematic structural diagram of a first apparatus of an antenna configuration according to the present invention;
fig. 4 is a schematic structural diagram of a second apparatus of an antenna configuration according to the present invention;
FIG. 5 is a system architecture diagram of an embodiment of a wireless fidelity access point system of the present invention;
FIG. 6 is a schematic structural diagram of a first wireless fidelity access point according to a first embodiment of the present invention;
fig. 7 is a schematic structural diagram of a second wifi access point according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Fig. 1 is a flowchart of a first embodiment of an antenna configuration method, which is applicable to a WiFi AP wireless network coverage situation, and which may be implemented by an antenna configuration device, where the antenna configuration device is implemented in a hardware and/or software manner and integrated in a WiFi AP. The WiFi AP applicable to the embodiment of the invention is usually provided with at least two antenna groups, each antenna group can be in double receiving and double sending, the client can be connected to a WiFi AP wireless network through one of the antenna groups, the WiFi AP comprises a wireless drive, the WiFi AP can call an antenna module initialization interface through the wireless drive to initialize configured antenna selection related parameters, the antenna group scanning interface can be called through the wireless drive to realize that each antenna group scans the accessed client, and related statistical information is obtained, and the antenna group switching interface can be called through the wireless drive to realize switching to another antenna group connected client. As shown in fig. 1, the method of this embodiment may include:
step 101, when detecting that the state of a client accessing a WiFi AP changes, respectively scanning and acquiring index information between at least two antenna groups of the WiFi AP and the client;
in this step, the WiFi AP will detect the status of each client accessing under its wireless network, which may be periodic detection or real-time discovery when the status of the client changes. When the state of a client is detected to change, each antenna group of the WiFi AP is triggered to scan, and each antenna group collects index information of the client on the antenna group within set time.
102, selecting an antenna group for the client according to the acquired index information;
in this step, after the WiFi AP obtains the index information of the client on each group of antennas, the index information is converted into an evaluation score for each group of antennas according to a preset selection algorithm, and then an optimal antenna group is selected for the client according to the level of the evaluation score.
103, the WiFi AP is switched to the selected antenna group to connect the client;
after the optimal antenna group is selected, the WiFi AP will switch to the optimal antenna group in time to connect the client for service.
According to the technical scheme, the state of the client under the WiFi AP wireless network is detected, when the state of the client changes, the antenna group of the WiFi AP is triggered to scan, and the optimal antenna group is selected according to index information of the client on each antenna group, so that the best coverage effect is achieved, the WiFi throughput performance is improved, and the user experience is improved.
Example two
Fig. 2 is a flowchart of a second method of antenna configuration according to the present invention. Based on the above embodiments, the present embodiment further describes in detail each flow step of the method for configuring an antenna, and the specific steps include the following:
step 201, when detecting that a client state of the WiFi AP changes, triggering an antenna to scan;
in this step, detecting that the client state of the WiFi AP changes may specifically include:
detecting that the position of a client of the WiFi AP changes; or
Detecting that a new client is accessed to the WiFi AP; or
Detecting that a client of a WiFi AP is disconnected with the WiFi AP; or
And detecting that the index information of the client of the WiFi AP is lower than a set threshold value.
When the WiFi AP detects that the state of a client is changed, the wireless drive of the WiFi AP is triggered to call the antenna group scanning interface to scan the client by each antenna group.
Step 202, collecting index information of the client through an antenna group in a set time;
in this step, when each antenna group of the WiFi AP is triggered to scan, the WiFi AP stays on each antenna group for a period of time, and acquires index information of the client on each antenna group, where the index information may include but is not limited to: received Signal Strength (RSSI), Signal to Noise ratio (SNR), Packet Error Rate (PER).
Step 203, obtaining an evaluation score of each antenna group through a selection algorithm according to the acquired information indexes;
in this step, when information indexes of the client on each antenna group of the WiFi AP are collected, the information indexes are converted by combining a selection algorithm, and then multiplied by a weighting coefficient to form an evaluation score for each antenna group, and the implementation of the algorithm is exemplified by RSSI and PER as follows:
antenna evaluation score =
K1*covert(RSSI_SUM)-K2*covert(RSSI_DIFF)+K3*covert(PER);
Wherein, RSSI _ SUM represents the SUM of RSSI of a group (two paths) of antennas, and represents the signal strength between the WiFi AP and the client; RSSI _ DIFF represents the difference between the RSSI of a set of (two-way) antennas, representing the reception difference of the two-way antennas; PER represents a PER parameter of the WiFi AP and represents a packet error sending rate; covert is a function for unit conversion; k1 represents the weighting factor of the RSSI _ SUM factor; k2 denotes the weighting factor for RSSI _ DIFF factor K3 denotes the weighting factor for PER.
Step 204, selecting the antenna group with the highest score as an optimal antenna group for the client;
in this step, after the antenna evaluation scores of the groups of antennas are calculated, the antenna group with the highest score is selected as the optimal antenna group.
Step 205, judging whether the optimal antenna group has access to a plurality of clients, if so, executing step 206; if not, go to step 207.
In this step, when the optimal antenna group is selected for the client through the antenna evaluation score, it is further necessary to determine whether the optimal antenna group has accessed multiple clients.
Step 206, calculating antenna evaluation scores of each group of antennas by combining the weight of each client service volume, and selecting the antenna evaluation score with the highest value as an optimal antenna group;
in this step, when the optimal antenna group selected by the client has multiple clients accessed, the antenna evaluation score of each group of antennas is calculated by combining the weight of the traffic of each client with reference to the traffic of each client, and the optimal antenna group with the highest antenna evaluation score is selected.
Optionally, clients with large service volume can be selected to be attended or the clients can be treated equally according to needs.
Step 207, the WiFi AP switches to an optimal antenna group to connect to the client;
in this step, after the optimal antenna group is selected for the client, the antenna group switching interface is called by the wireless drive of the WiFi AP to switch to the optimal antenna group to connect the client.
According to the technical scheme of the embodiment, when the state of a client changes, the wireless drive of the WiFi AP calls each antenna group to scan through the antenna group scanning interface, index information of the client on each antenna group is obtained, conversion operation is carried out on the index information by combining a selection algorithm, an evaluation score of the antenna groups is formed, and the optimal antenna group is selected according to the evaluation score, so that the client always obtains the best coverage effect, the user can experience the best performance of the WiFi network, and the requirements of the user are met.
Fig. 3 is a schematic structural diagram of a first apparatus for antenna configuration according to an embodiment of the present invention, which is applicable to a WiFi AP wireless network, where the apparatus for antenna configuration is included in a WiFi AP device, and a specific application environment may refer to fig. 5, and fig. 5 is a schematic system architecture diagram of an embodiment of a wireless fidelity access point system according to the present invention, as shown in fig. 5, a client 30 may connect to a wireless fidelity access point (WiFi AP) 10 through a wireless network 20 to access the internet for performing related services. The devices of the antenna configuration of the present embodiment can be integrated in the WiFi AP. As shown in fig. 3, the apparatus of the present embodiment may include: a detection module 11; a scanning module 12 and a selection module 13.
The detection module 11 is configured to detect a client state of accessing the WiFi AP; the scanning module 12 is configured to scan index information between at least two antenna groups of the WiFi AP and a client; the selection module 13 is configured to select an antenna group for the client according to the obtained index information, and the WiFi AP is switched to the selected antenna group to connect to the client.
The apparatus of this embodiment may be used to implement the technical solution of the method provided in the embodiment of the present invention, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 4 is a schematic structural diagram of a second apparatus of an antenna configuration according to the present invention, and as shown in fig. 4, the apparatus of this embodiment is based on the apparatus structure shown in fig. 3, and further, the detecting module 11 includes: a position detection unit 111; an access detection unit 112; a link detection unit 113 and/or a threshold detection unit 114; wherein,
a location detection unit 111, configured to detect that a location of a client of the WiFi AP changes; an access detection unit 112, configured to detect that a new client accesses the WiFi AP; a link detection unit 113, configured to detect that a client of a WiFi AP is disconnected from the WiFi AP; a threshold detection unit 114, configured to detect that index information of the client of the WiFi AP is lower than a set threshold.
The apparatus of this embodiment may be used to implement the technical solution of the method provided in the embodiment of the present invention, and the implementation principle and the technical effect are similar, which are not described herein again.
Further, in the present embodiment, the selection module 13 includes: a first selection unit 131 and a second selection unit 132. The first selecting unit 131 is configured to select at least one antenna group for the client according to the obtained index information, and select an optimal antenna group for the client according to the traffic of the client from the selected antenna groups; a second selecting unit 132, configured to multiply the obtained index information by a weighting coefficient, add the obtained index information to obtain an evaluation score of each antenna group, and select, according to the evaluation score of each antenna group, an antenna group with the highest evaluation score for the client.
The apparatus of this embodiment may be used to implement the technical solution of the method provided in the embodiment of the present invention, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 6 is a schematic structural diagram of a first wireless fidelity access point according to an embodiment of the present invention, as shown in fig. 6, a WiFi AP100 of the present embodiment includes at least two antenna groups 300, and further includes an antenna configuration apparatus 200 according to any embodiment of the present invention; the user can configure the antenna selection parameters and selection algorithm through the parameter configuration interface, and then the antenna configuration device 200 realizes the optimal selection of the antenna group 300.
The antenna configuration apparatus 200 may adopt the structure of any apparatus embodiment in fig. 3 and fig. 4, and accordingly, may execute the technical solution of any method embodiment in fig. 1 and fig. 2, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 7 is a schematic structural diagram of a second wifi access point according to an embodiment of the present invention. As shown in fig. 7, the wifi access point 800 of the present embodiment includes at least one processor 801, a memory 802, a network interface 803, and a user interface 804, and further includes a communication bus 805. The communication bus 805 is used to realize connection communication between the devices. The user interface 804 is used for communication between the user and the system, through which the adjustment parameters are configured at the user interface. The network interface 803 is used for communication between a system and a network, and may be a device or a unit that can implement a data transceiving function, such as a network port, a Universal Serial BUS (USB) interface, a radio frequency unit, and an antenna. The memory 802 may include a high-speed RAM memory, and may further include a non-volatile memory (NVM), such as at least one disk memory. The memory 802 may optionally include at least one storage device that stores various codes and the like for implementing various underlying services and for handling hardware-based tasks.
Wherein, the processor 801 performs the following actions according to the instructions of the code stored in the memory 802:
a method of antenna configuration, comprising:
when detecting that the state of a client accessed to a wireless fidelity (WiFi) Access Point (AP) is changed, respectively scanning index information between at least two antenna groups of the WiFi AP and the client;
selecting an antenna group for the client according to the acquired index information;
the WiFi AP is switched to the selected antenna group to connect the client.
Further, detecting that the client status of the WiFi AP changes includes:
detecting that the position of a client of the WiFi AP changes;
detecting that a new client is accessed to the WiFi AP;
detecting that a client of a WiFi AP is disconnected with the WiFi AP; and/or
And detecting that the index information of the client of the WiFi AP is lower than a set threshold value.
Further, scanning index information between at least two antenna groups of the WiFi AP and the client, respectively, includes:
and aiming at each antenna group of the WiFi AP, collecting the received signal intensity, the packet error rate and/or the signal-to-noise ratio of the client side through the antenna group within set time to serve as the index information.
Further, selecting an antenna group for the client according to the obtained index information includes:
selecting at least one antenna group for the client according to the acquired index information;
and selecting an optimal antenna group for the client according to the service volume of the client from the selected antenna groups.
Further, selecting an antenna group for the client according to the obtained index information includes:
multiplying the obtained index information by a weighting coefficient, and adding the obtained index information to obtain an evaluation score of each antenna group;
and selecting the antenna group with the highest evaluation score for the client according to the evaluation score of each antenna group.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A method of antenna configuration, comprising:
when detecting that the state of a client accessed to a wireless fidelity (WiFi) Access Point (AP) is changed, respectively scanning index information between at least two antenna groups of the WiFi AP and the client;
selecting an antenna group for the client according to the acquired index information;
the WiFi AP is switched to the selected antenna group to connect the client.
2. The method of antenna configuration of claim 1, wherein detecting a change in a client state of a WiFi AP comprises:
detecting that the position of a client of the WiFi AP changes;
detecting that a new client is accessed to the WiFi AP;
detecting that a client of a WiFi AP is disconnected with the WiFi AP; and/or
And detecting that the index information of the client of the WiFi AP is lower than a set threshold value.
3. The method of claim 1, wherein scanning indicator information between at least two antenna groups of the WiFi AP and a client, respectively, comprises:
and aiming at each antenna group of the WiFi AP, collecting the received signal intensity, the packet error rate and/or the signal-to-noise ratio of the client side through the antenna group within set time to serve as the index information.
4. The method of antenna configuration according to claim 1, wherein selecting an antenna group for the client according to the obtained indicator information comprises:
selecting at least one antenna group for the client according to the acquired index information;
and selecting an optimal antenna group for the client according to the service volume of the client from the selected antenna groups.
5. The method of antenna configuration according to claim 1, wherein selecting an antenna group for the client according to the obtained indicator information comprises:
multiplying the obtained index information by a weighting coefficient, and adding the obtained index information to obtain an evaluation score of each antenna group;
and selecting the antenna group with the highest evaluation score for the client according to the evaluation score of each antenna group.
6. An apparatus for antenna configuration, comprising:
the detection module is used for detecting the state of a client accessed to the WiFi AP;
the scanning module is used for scanning index information between at least two antenna groups of the WiFi AP and a client;
and the selection module is used for selecting an antenna group for the client according to the acquired index information, and the WiFi AP is switched to the selected antenna group to be connected with the client.
7. The apparatus of claim 6, wherein the detection module comprises:
the position detection unit is used for detecting that the position of the client of the WiFi AP changes;
an access detection unit, configured to detect that a new client accesses the WiFi AP;
the link detection unit is used for detecting that the client of the WiFi AP is disconnected with the WiFi AP; and/or
And the threshold detection unit is used for detecting that the index information of the client of the WiFi AP is lower than a set threshold.
8. The antenna configuration apparatus of claim 6, wherein the scanning module is specifically configured to, for each antenna group of the WiFi AP, acquire, as the index information, a received signal strength, a packet error rate, and/or a signal-to-noise ratio of the client through the antenna group within a set time.
9. The apparatus of claim 6, wherein the selection module comprises:
a first selection unit, configured to select at least one antenna group for the client according to the obtained index information, and select an optimal antenna group for the client according to a traffic of the client from the selected antenna groups;
and the second selection unit is used for multiplying the acquired index information by a weighting coefficient, adding the obtained index information to be used as an evaluation score of each antenna group, and selecting the antenna group with the highest evaluation score for the client according to the evaluation score of each antenna group.
10. A wifi access point comprising at least two antenna groups, further comprising means for the antenna configuration of any of claims 6-9.
CN2013101656992A 2013-05-08 2013-05-08 Antenna configuration method and device and access point Pending CN103298052A (en)

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Application publication date: 20130911