CN112654080B - Energy saving system and method for wireless communication equipment - Google Patents
Energy saving system and method for wireless communication equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
- H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides an energy-saving system and method of wireless communication equipment, and belongs to the technical field of wireless communication. The energy-saving system comprises a data acquisition system, a data processing system and a control system, wherein the data acquisition system is used for dividing wireless access points into a plurality of wireless access groups, the wireless access characteristics of all the wireless access points in each wireless access group are consistent, and then the data acquisition system acquires and outputs the wireless access data of each wireless access point of each wireless access group; the data decision system is connected with the data acquisition system and is used for respectively determining the energy saving scheme of each wireless access group according to the wireless access data; and the network management system is connected with the data decision system and is used for respectively issuing corresponding control instructions to the wireless access points of each wireless access group according to the energy-saving scheme so as to respectively control each wireless access point to enter a corresponding energy-saving state. The beneficial effects of the technical scheme are as follows: the wireless communication device can save power consumption of the wireless communication device, can not influence use experience of users, has a wide application range, and is suitable for commercial popularization.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to an energy saving system and method for a wireless communication device.
Background
Wireless data communication is currently the most popular way of data communication and transmission, and is widely used in a variety of applications. A wireless local area network may be comprised of a plurality of wireless communication devices and may be capable of supporting a plurality of wireless terminals accessing the network and performing data interactions. For a wireless communication device, its power consumption during operation may consist of two parts: a part of the power consumption is static power consumption, which belongs to inherent power consumption in the wireless communication device, and the space for reduction by adjustment is limited; the other part is dynamic power consumption, which is usually generated in the process of transmitting and receiving data messages by a radio frequency circuit, and is usually the focus of power consumption adjustment in the prior art.
In the prior art, the design of the energy saving scheme for the wireless communication device mainly comprises:
1) A specific software design optimization is performed for the communication protocol between the wireless communication device and the wireless terminal. The wireless communication equipment and the wireless terminal in the optimization mode support the communication protocol corresponding to software design optimization. Communication protocols may be incompatible with each other for different brands and different software versions of the communication device, and thus such an optimization is difficult to popularize and cannot be widely applied commercially.
2) And setting time periods for closing the radio frequency or reducing the transmitting frequency for each wireless communication device in the wireless local area network respectively by a manual setting mode. This optimization requires manual execution and consumes a lot of human resources. In addition, the optimization mode can only cope with predicted regular application scenes, and cannot be applied to unconventional network application scenes of users, so that the business popularization of the optimization mode is also influenced.
Disclosure of Invention
According to the above-mentioned problems existing in the prior art, an energy-saving system and method for a wireless communication device are provided, which aims to reduce the power consumption of the wireless communication device, and the wireless communication device has no influence on the user experience, and has a wide application range, so that the wireless communication device is suitable for commercial popularization.
The technical scheme specifically comprises the following steps:
an energy saving system of a wireless communication device is applied to a wireless area network, wherein the wireless area network comprises a plurality of wireless access points; wherein, energy-saving system includes:
the data acquisition system is used for dividing the wireless access points into a plurality of wireless access groups, the wireless access characteristics of all the wireless access points in each wireless access group are consistent, and then the data acquisition system acquires and outputs the wireless access data of each wireless access point of each wireless access group;
The data decision system is connected with the data acquisition system and is used for respectively determining the energy-saving scheme of each wireless access group according to the wireless access data;
and the network management system is connected with the data decision system and is used for respectively issuing corresponding control instructions to the wireless access points of each wireless access group according to the energy-saving scheme so as to respectively control each wireless access point to enter the corresponding energy-saving state.
Preferably, the energy saving system, wherein the data acquisition system specifically includes:
the first dividing unit is used for pre-dividing all the wireless access into a plurality of wireless access groups according to the wireless access data reported by each wireless access point;
and the second dividing unit is connected with the first dividing unit and is used for respectively carrying out consistency test on the wireless access characteristics of all the wireless access points in each wireless access group, scattering the wireless access groups which do not pass the consistency test and re-grouping.
Preferably, in the energy saving system, the second dividing unit specifically includes:
the statistics module is used for counting the change trend data of the network load of each wireless access point along with the change of time;
The inspection module is connected with the statistics module, and is used for judging whether the change trend data of all the wireless access points are consistent or not according to each wireless access group respectively and outputting inspection results;
and the adjustment module is connected with the checking module and used for scattering the wireless access groups which do not pass the consistency check according to the checking result and grouping all the wireless access points which are not classified into the wireless access groups again.
Preferably, the energy saving system, wherein the data decision system specifically includes:
a role allocation unit, for each wireless access group, the role allocation unit is configured to allocate an operation role to each wireless access point according to a network distribution position of the wireless access point;
a scheme making unit, connected to the role allocation unit, for making a corresponding energy saving scheme for each wireless access group according to the running roles of all the wireless access points in each wireless access group;
and the scheme issuing unit is connected with the scheme making unit and is used for issuing the energy-saving scheme to the network management system at the starting time of the preset energy-saving period.
Preferably, the energy-saving system, wherein the running roles comprise a central access point, a monitoring access point and a common access point;
the role assignment unit determines the network distribution location of the wireless access point based on:
taking the wireless access points which are all neighbor access points with other wireless access points as the center access point;
taking the wireless access point with the distance from the central access point meeting the preset distance condition as the monitoring access point; and
and taking all the wireless access points except the central access point and the monitoring access point as the common access point.
Preferably, the energy saving system, wherein the preset distance condition is:
the distance between the wireless access point and the central access point exceeds a preset threshold; or alternatively
The wireless access point is furthest from the center access point.
Preferably, the energy saving system, wherein the scheme making unit specifically includes:
the first formulation module is configured to set a working state of the central access point to: maintaining the signal transmitting function and the signal receiving function of the radio frequency card of the central access point, and adjusting the transmitting power of the radio frequency card of the central access point to the maximum;
The second formulation module is configured to set the working state of the listening access point to: closing the signal transmitting function of the radio frequency card of the monitoring access point, and only opening the signal receiving function of the radio frequency card;
the third formulation module is configured to set a working state of the common access point to: and closing the signal transmitting function and the signal receiving function of the common access point.
Preferably, in the energy saving system, the scheme issuing unit specifically includes:
and the period prediction module is used for predicting a low-load period according to the historical wireless access data of the wireless access group and determining the low-load period as the energy-saving period.
Preferably, the energy saving system, wherein the data decision system further comprises:
and the first termination unit is connected with the scheme issuing unit and is used for issuing an energy-saving termination instruction to the network management system when the energy-saving period expires so that the network management system informs the corresponding wireless access group of recovering the normal working state.
Preferably, the energy saving system, wherein the data decision system further comprises:
the load monitoring unit is used for continuously monitoring terminal access requests of the wireless access groups in the energy-saving period;
And the second termination unit is connected with the scheme issuing unit and is used for issuing an energy-saving termination instruction to the network management system when the terminal access request accords with a preset recovery condition so that the network management system can inform the corresponding wireless access group to recover to a normal working state.
Preferably, in the energy saving system, for each radio access group, the preset recovery condition is:
the terminal access request received by the wireless access group exceeds a preset data volume, and the signal strength of the terminal access request is lower than a preset strength.
The energy saving method of the wireless communication equipment is applied to the energy saving system of the wireless communication equipment;
the energy saving method comprises the following steps:
step S1, dividing the wireless access points into a plurality of wireless access groups, so that the wireless access characteristics of all the wireless access points in each wireless access group are consistent;
step S2, collecting and reporting wireless access data of each wireless access point of each wireless access group;
step S3, respectively determining an energy-saving scheme of each wireless access group according to the reported wireless access data, and then respectively issuing corresponding control instructions to the wireless access points of each wireless access group according to the energy-saving scheme so as to respectively control each wireless access point to enter the corresponding energy-saving state.
Preferably, in the energy saving method, the step S1 specifically includes:
step S11, according to the wireless access data reported by each wireless access point, pre-dividing all the wireless accesses into a plurality of wireless access groups;
step S12, counting the change trend data of the network load of each wireless access point along with the time change;
step S13, respectively, for each wireless access group, determining whether the change trend data of all the wireless access points are consistent or not:
if the change trend data of the wireless access group is consistent, reserving the wireless access group;
if the change trend data of the wireless access group is inconsistent, scattering the wireless access group;
after completing the judgment of all the wireless access groups, then turning to step S14;
and S14, grouping all the wireless access points which are not grouped into the wireless access group again, and returning to the step S13 until the number of times that all the wireless access points are grouped into a corresponding wireless access group or regrouped reaches a preset regrouping threshold.
Preferably, the energy saving method, wherein the step S3 specifically includes:
Step S31, for each wireless access group, respectively distributing operation roles for each wireless access point according to the network distribution position of the wireless access point;
step S32, according to the operation roles of all the wireless access points in each wireless access group, a corresponding energy-saving scheme is respectively formulated for each wireless access group;
step S33, respectively issuing the control instruction corresponding to the energy-saving scheme to each wireless access point at the start time of the preset energy-saving period, so as to respectively control each wireless access point to enter the corresponding energy-saving state.
Preferably, the energy saving method, wherein the running roles comprise a central access point, a monitoring access point and a common access point;
in step S31, according to the network distribution position of the wireless access point:
taking the wireless access points which are all neighbor access points with other wireless access points as the center access point;
taking the wireless access point with the distance from the central access point meeting the preset distance condition as the monitoring access point; and
and taking all the wireless access points except the central access point and the monitoring access point as the common access point.
Preferably, in the energy saving method, in step S32, different working states are respectively set for different running roles:
setting the working state of the central access point as follows: maintaining the signal transmitting function and the signal receiving function of the radio frequency card of the central access point, and adjusting the transmitting power of the radio frequency card of the central access point to the maximum;
setting the working state of the monitoring access point as follows: closing the signal transmitting function of the radio frequency card of the monitoring access point, and only opening the signal receiving function of the radio frequency card;
setting the working state of the common access point as follows: closing the signal transmitting function and the signal receiving function of the common access point;
the operating states of all the wireless access points within the wireless access group constitute the power saving scheme of the corresponding wireless access group.
The beneficial effects of the technical scheme are as follows:
1) The energy-saving system of the wireless communication equipment can save the power consumption of the wireless communication equipment, does not influence the use experience of users, has a wider application range and is suitable for commercial popularization.
2) An energy saving method for a wireless communication device is provided, which can support the operation of the energy saving system.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an energy saving system of a wireless communication device in accordance with the preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of a data acquisition system according to a preferred embodiment of the present invention;
FIG. 3 is a schematic diagram showing the structure of a second dividing unit according to the preferred embodiment of the present invention;
FIG. 4 is a schematic diagram of a data decision system according to a preferred embodiment of the present invention;
FIG. 5 is a schematic diagram showing the structure of a scheme making unit according to the preferred embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a scheme issuing unit according to the preferred embodiment of the present invention;
FIG. 7 is a general flow diagram of a method for power saving for a wireless communication device in accordance with a preferred embodiment of the present invention;
FIG. 8 is a schematic flow chart of step S1 in the above energy saving method according to the preferred embodiment of the present invention;
FIG. 9 is a schematic flow chart of step S3 in the above energy saving method according to the preferred embodiment of the present invention;
Detailed Description
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
In a preferred embodiment of the present invention, based on the above-mentioned problems existing in the prior art, a technical solution of an energy saving system of a wireless communication device is provided, where the energy saving system of the wireless communication device is applied to a wireless area network, and the wireless area network includes a plurality of wireless access points AP (Access Point); the energy saving system is shown in fig. 1, and comprises:
The data acquisition system A is used for dividing the wireless access points into a plurality of wireless access groups, wherein the wireless access characteristics of all the wireless Access Points (AP) in each wireless access group are consistent, and then the data acquisition system A acquires and outputs the wireless access data of each wireless Access Point (AP) in each wireless access group;
the data decision system B is connected with the data acquisition system A and is used for respectively determining the energy saving scheme of each wireless access group according to the wireless access data;
and the network management system C is connected with the data decision system B and is used for respectively issuing corresponding control instructions to the wireless Access Points (AP) of each wireless access group according to the energy-saving scheme so as to respectively control each wireless Access Point (AP) to enter a corresponding energy-saving state.
In particular, in this embodiment, the energy saving system of the wireless communication device may be applicable to a wireless local area network, such as a campus network, or the like, which has a certain scale and a certain number of AP nodes. The above-mentioned wireless access points AP form an AP cluster in the wireless area network for providing wireless data access functions to wireless terminals in the coverage area of the wireless area network.
The energy saving system in this embodiment may be set on one of the main AP nodes in the wireless area network, where the main AP node may be preset, or may be one out of all the wireless access points AP in the wireless area network as the main AP node. The specific setting/lifting manner is the prior art and will not be described herein.
In the prior art, the wireless access points AP in the wireless area network are not grouped in advance, and are managed and adjusted according to the grouping condition of the APs. In this embodiment, before power consumption adjustment is performed on each wireless access point AP in the wireless area network, the wireless access points AP are divided into wireless access groups, each wireless access group includes a plurality of wireless access points APs, and each wireless access point AP in the wireless area network belongs to a specific wireless access group. The above-mentioned dividing condition of the wireless access group may be: ensuring that all wireless access points AP within each wireless access group have consistent wireless access characteristics. The wireless access characteristic may be a change in network load of the wireless access points AP, that is, a trend of change in network load of all the wireless access points AP in each wireless access group with time should be uniform. The "consistent" here may refer to that the trend curves of the network load change with time are similar, and further, considering that the number of the wireless access points AP in one wireless access group may be relatively large, the "consistent change trend" may refer to that the degree of difference of the change trend curves is within a certain tolerance range, that is, the trend of the network load change with time of each wireless access point AP in the same wireless access group should have a distinct and consistent rule.
The "network load" described above may be quantized to the number of external radio access requests that are simultaneously received by a single radio access point AP at one time, or may be quantized to the data size of radio access data that are simultaneously received by a single radio access point AP at one time, which is not described herein.
After the plurality of radio access groups are divided, the power consumption adjustment for each radio access point AP is converted into the power consumption adjustment for each radio access group. Specifically, for each wireless access group, firstly, a data decision system B is adopted, the running roles of each wireless access point AP are respectively determined according to the wireless access data of each wireless access point AP, and different power consumption adjustment modes are executed according to different running roles, so that all the power consumption adjustment modes for a single wireless access group are combined to form an energy saving scheme for the wireless access group.
And then, a network management system C is adopted, corresponding control instructions are formed according to the energy-saving scheme and are respectively issued to each wireless access point AP. Specifically, the network management system C functions similarly to "notifying" each wireless access point AP in each wireless access group of the energy saving scheme, so that each wireless access point AP can adjust its own operating state according to the corresponding energy saving scheme. When all the wireless Access Points (AP) in all the wireless access groups can adjust the working state according to the corresponding energy-saving scheme, the whole wireless area network achieves the effect of overall saving power consumption without setting a power consumption adjustment mode for each wireless Access Point (AP).
In a preferred embodiment of the present invention, the data acquisition system a, as shown in fig. 2, includes:
the first dividing unit A1 is used for pre-dividing all wireless accesses into a plurality of wireless access groups according to the wireless access data reported by each wireless access point AP;
and the second dividing unit A2 is connected with the first dividing unit A1 and is used for respectively carrying out consistency test on the wireless access characteristics of all wireless access points in each wireless access group, scattering wireless access groups which do not pass the consistency test and re-grouping.
Specifically, in this embodiment, each wireless access point AP is first pre-divided into a plurality of wireless access groups according to the criterion of "the trend of the network load changing with time needs to be uniform", and the number of wireless access points APs included in different wireless access groups may be different.
Then, whether the wireless access group divided by the first dividing unit A1 is qualified or not is verified according to the criterion of "the trend of the network load changing with time needs to be consistent", and the unqualified wireless access group is scattered, i.e., all the wireless access points AP included in the unqualified wireless access group are restored to an ungrouped state, and grouping is performed again.
Further, in a preferred embodiment of the present invention, as shown in fig. 3, the second dividing unit A2 specifically includes:
the statistics module A21 is used for counting the change trend data of the network load of each wireless access point along with the change of time;
the checking module A22 is connected with the statistics module A21, and respectively aims at each wireless access group, judges whether the change trend data of all the wireless access points AP are consistent or not, and outputs a checking result;
and the adjusting module A23 is connected with the checking module A22 and is used for scattering the wireless access groups which do not pass the consistency check according to the checking result and grouping all the wireless access points AP which are not classified into the wireless access groups again.
Specifically, in the second dividing unit A2, first, for each radio access group, change trend data (for example, change trend curve) of the network load of each radio access point AP over time is counted, and each radio access group that has been pre-divided is checked according to the above-described division criteria "trend demand of network load over time is consistent", respectively, the radio access groups that have been checked are reserved, the radio access groups that have failed to check are scattered, the scattered radio access groups are reclassified as unclassified radio access points AP for grouping, and checking is continued after regrouping. The above process is cycled until all wireless access points AP are divided into a certain wireless access group and all wireless access groups pass the inspection of inspection module a 22. Of course, in order to avoid that the system falls into a long cycle caused by the repeated re-grouping, a preset re-grouping threshold is provided in the present invention, and if the number of re-grouping reaches the re-grouping threshold, whether the re-grouped wireless access group can pass the inspection of the inspection module a22 or not, the grouping result after the last re-grouping is reserved.
For example, a wireless area network includes 10 wireless access points AP1-AP10.
After the first packet, the 10 wireless access points are divided into 5 packets (AP 1, AP 2), (AP 3, AP 4), (AP 5, AP 6), (AP 7, AP 8) and (AP 9, AP 10). After the above 5 radio access groups are inspected by the inspection module a22, (AP 1, AP 2) and (AP 3, AP 4) are inspected to be qualified and the other three radio access groups are inspected to be unqualified and broken.
The AP5-AP10 is regrouped and divided into three radio access groups (AP 5, AP 8), (AP 6), (AP 7, AP9, AP 10), plus the previously reserved (AP 1, AP 2) and (AP 3, AP 4), forming all radio access groups after the first regrouping.
Next, the re-grouped wireless access groups (AP 5, AP 8), (AP 6) and (AP 7, AP9, AP 10) are checked, and it is considered that (AP 5, AP 8) and (AP 6) meet the check requirements and are reserved, and (AP 7, AP9, AP 10) do not meet the check standards and are scattered.
The AP7, AP9, AP10 are regrouped and divided into two radio access groups (AP 7, AP 10) and (AP 9), plus (AP 1, AP 2), (AP 3, AP 4), (AP 5, AP 8) and (AP 6) that were previously reserved, forming all radio access groups after the second regrouping.
The re-grouped radio access groups (AP 7, AP 10) and (AP 9) are continuously checked, and the two radio access groups pass the checking, so that the division result of the finally determined radio access groups is (AP 1, AP 2), (AP 3, AP 4), (AP 5, AP 8), (AP 6), (AP 7, AP 10) and (AP 9).
Accordingly, if the reorganization threshold is set 1 time in advance, the division result of the finally determined wireless access group is (AP 1, AP 2) (AP 3, AP 4), (AP 5, AP 8), (AP 6), and (AP 7, AP9, AP 10).
Of course, in the actual situation, because the network coverage of the wireless area network to which the energy-saving system is applicable is larger, the number of the included wireless access points AP is larger, so that the situation that only one wireless access point AP in a certain wireless access group is not generated basically, the reorganization threshold is set to be a value adaptive to the scale of the wireless area network, and on the basis of avoiding long-time dead circulation, the system is provided with enough reorganization times to find the optimal partitioning mode of the wireless access group as much as possible.
In this embodiment, the above-mentioned division of the wireless access groups for each wireless access point AP may be actually implemented by marking each wireless access point AP with a serial number of the corresponding wireless access group in the system. The "break up the radio access group" may be implemented by deleting the sequence number label of the corresponding radio access point AP.
In a preferred embodiment of the present invention, as shown in fig. 4, the data decision system B specifically includes:
a role allocation unit B1, for each wireless access group, configured to allocate an operation role to each wireless access point AP according to a network distribution position of the wireless access point;
a scheme making unit B2, connected to the role allocation unit B1, configured to make a corresponding energy-saving scheme for each wireless access group according to the operation roles of all the wireless access points APs in each wireless access group;
the scheme issuing unit B3 is connected with the scheme making unit B2, and is configured to issue an energy saving scheme to the network management system C at a preset starting time of the energy saving period.
In this embodiment, after determining the division manner of the radio access group, the data decision system B makes a specific energy saving scheme for each radio access group. Of course, the principle of formulating a power saving scheme for each radio access group is the same, and the substantial difference in the power saving scheme is determined only by the radio access data and physical characteristics of the individual radio access points in the radio access group. Therefore, the technical solution of the present invention will be described below by taking only the procedure of formulating a power saving scheme of one radio access group as an example.
Specifically, for one radio access group, the role assignment unit B1 is first employed to assign the running roles to the respective radio access points AP in the radio access group. The principle of running role assignment can be:
taking a wireless access point with all other wireless access points being neighbor access points as a central access point, namely the central access point and all other wireless access points in the wireless access group are neighbor nodes;
taking a wireless access point with the distance from the central access point meeting the preset distance condition as a monitoring access point; and
all wireless access points except the central access point and the monitoring access point are used as common access points.
In other words, the running roles may include a central access point, a listening access point, and a normal access point, and then the network distance between the wireless access points is referred to as "wireless access data" as described above.
Further, the preset distance condition may be:
the distance between the wireless access point and the central access point exceeds a preset threshold; or alternatively
The distance between the wireless access point and the center access point is the farthest.
In this embodiment, the scheme making unit B2 specifically includes:
The first formulation module B21 is configured to set an operating state of the central access point to: maintaining the signal transmitting function and the signal receiving function of the radio frequency card started by the central access point, and adjusting the transmitting power of the radio frequency card of the central access point to the maximum;
the second formulation module B22 is configured to set the working state of the listening access point to: closing the signal transmitting function of the radio frequency card of the monitoring access point, and only opening the signal receiving function of the radio frequency card;
the third formulation module B23 is configured to set an operating state of the normal access point to: the signal transmitting function and the signal receiving function of the normal access point are turned off.
Specifically, for each wireless access group, for a central access point (only one central access point is provided for each wireless access group), the signal transmitting function and the signal receiving function of a Radio frequency card (Radio) of the central access point are maintained to be started, and the signal transmitting power of the Radio frequency card of the central access point is adjusted to be maximum, so that the central access point can automatically select an optimal working frequency band when working, thereby ensuring that the optimal network coverage effect is realized in the network coverage of the wireless access group.
For the monitoring access point (at least one monitoring access point is included in each wireless access group), only the signal receiving function of the radio frequency card of the monitoring access point is maintained, and the signal transmitting function of the radio frequency card is closed. The listening access point is only operative to receive and listen for external radio access requests and to determine whether the power saving phase should be terminated based on the listening situation (described in more detail below).
Aiming at the common access point, the signal transmitting and receiving functions of the radio frequency card are all closed, namely, the radio frequency card is set to be in a dormant state, so that the power consumption of the common access point is saved to the greatest extent.
In a preferred embodiment of the present invention, as shown in fig. 6, the foregoing scheme issuing unit B3 specifically includes:
and the period prediction module B31 is configured to predict a low-load period according to the historical wireless access data of the wireless access group, and determine the low-load period as an energy-saving period, where the scheme issuing unit B3 issues an energy-saving scheme when the energy-saving period expires.
In particular, in this embodiment, in order not to affect the network usage experience of the user, the above-mentioned energy saving scheme can only be executed when the network load in the network area covered by the radio access group is low. The data decision system B continuously stores the wireless access data reported by each wireless access point AP, and forms trend data of the network load of each wireless access point AP over time according to the historical data, thereby forming trend data of the network load of each wireless access group over time. The above division of the wireless access groups enables the trend of the network load of each wireless access point AP in each wireless access group over time to have a consistent rule, so that each wireless access group can be considered as a wireless access point when the network load is predicted, the data of each wireless access group is the sum of the data of each wireless access point, and thus, the network load of each wireless access group can be predicted, and the high load period and the low load period of each wireless access group are predicted, and the predicted low load period is used as the energy-saving period of the wireless access group. It should be noted that, because the network coverage of different radio access groups is different, the trend of the network load changing with time is different, so the starting and ending moments of the energy-saving time periods of different radio access groups are not necessarily the same, and the duration is not necessarily the same.
The data decision system B will only issue the power saving scheme to the network management system C for each radio access group at the beginning of the power saving period for the network management system C to inform the individual radio access points AP.
Of course, the data decision system B may also choose to directly issue the energy-saving scheme to the network management system C, and attach relevant information of the energy-saving period of each radio access group, that is, the issued energy-saving scheme is attached with a corresponding execution period. The network management system C may issue control instructions corresponding to the energy-saving scheme to each wireless access point AP, so as to set an energy-saving period for each wireless access point AP and perform operations in the energy-saving period, so that the energy-saving scheme and the control instructions do not need to be issued repeatedly.
In a preferred embodiment of the present invention, as also shown in fig. 4, the data decision system B further comprises:
the first termination unit B4 is configured to send an energy-saving termination instruction to the network management system when the energy-saving period expires to notify the network management system C that the corresponding wireless access group is restored to a normal working state.
A load monitoring unit B5, configured to continuously monitor terminal access requests of each wireless access group during the energy-saving period;
The second termination unit B6 is respectively connected with the load monitoring unit B5 and the scheme issuing unit B3, and is configured to issue an energy-saving termination instruction to the network management system C when the terminal access request meets a preset recovery condition, so that the network management system C notifies the corresponding wireless access group to recover to a normal working state.
Further, in a preferred embodiment of the present invention, for each radio access group, the preset recovery conditions are:
the terminal access request received by the wireless access group exceeds the preset data volume, and the signal intensity of the terminal access request is lower than the preset intensity.
In this embodiment, since there is an energy saving means, a condition for terminating energy saving should exist. Specifically, the conditions for terminating the energy saving adjustment may be two of the following:
the first is that the energy-saving period is finished, at this time, the energy-saving adjustment in the energy-saving period is automatically finished, each wireless access point AP in the wireless access group returns to a normal working state, specifically, the monitoring access point and the normal access point recover normal network service (start signal transmitting and receiving functions), and the central access point automatically adjusts the transmitting power and the working channel according to the peripheral wireless signals.
The second is that there is a burst condition in the energy saving period that needs to return to the normal working state, and the burst condition is usually:
the data decision system B continuously monitors the central access point in each wireless access group and monitors the condition of terminal access requests received by the access points, and receives a large number of terminal access requests in the wireless access group, when the optical access point cannot process the data decision system B, the wireless access group is forced to stop energy saving and return to a normal working state, particularly, the monitoring access point and a common access point recover normal network service (start signal transmitting and receiving functions), and the central access point can automatically adjust transmitting power and working channels according to peripheral wireless signals.
Of course, the process of stopping energy saving is also realized by reporting the data of the wireless access point AP by the data acquisition system A, analyzing and deciding by the data decision system B, and issuing a control instruction by the network management system C according to the decision result.
In a preferred embodiment of the present invention, based on the above-described power saving system of a wireless communication device, there is now provided a power saving method of a wireless communication device, specifically as shown in fig. 7, including:
step S1, dividing the wireless access points into a plurality of wireless access groups, so that the wireless access characteristics of all the wireless access points in each wireless access group are consistent;
Step S2, collecting and reporting wireless access data of each wireless access point of each wireless access group;
step S3, respectively determining an energy-saving scheme of each wireless access group according to the reported wireless access data, and then respectively issuing corresponding control instructions to the wireless access points of each wireless access group according to the energy-saving scheme so as to respectively control each wireless access point to enter a corresponding energy-saving state.
In a preferred embodiment of the present invention, the step S1 is specifically shown in fig. 8, and includes:
step S11, according to the wireless access data reported by each wireless access point, pre-dividing all wireless accesses into a plurality of wireless access groups;
step S12, counting the change trend data of the network load of each wireless access point along with the time change;
step S13, judging whether the change trend data of all the wireless access points are consistent or not according to each wireless access group respectively:
if the change trend data of the wireless access group is consistent, reserving the wireless access group;
if the change trend data of the wireless access groups are inconsistent, scattering the wireless access groups;
after completing the judgment of all the wireless access groups, the process then goes to step S14;
step S14, grouping all wireless access points which are not grouped into wireless access groups again, and returning to step S13 until the number of times that all wireless access points are grouped into a corresponding wireless access group or regrouped reaches a preset regrouping threshold.
In a preferred embodiment of the present invention, the step S3 is specifically shown in fig. 9, and includes:
step S31, for each wireless access group, distributing operation roles for each wireless access point according to the network distribution position of the wireless access point;
step S32, according to the operation roles of all wireless access points in each wireless access group, a corresponding energy-saving scheme is respectively formulated for each wireless access group;
step S33, respectively issuing control instructions corresponding to the energy-saving schemes to each wireless access point at the starting time of the preset energy-saving period so as to respectively control each wireless access point to enter a corresponding energy-saving state.
In a preferred embodiment of the present invention, the running roles include a central access point, a listening access point and a normal access point;
in step S31, according to the network distribution position of the wireless access point:
taking a wireless access point with all other wireless access points being neighbor access points as a central access point;
taking a wireless access point with the distance from the central access point meeting the preset distance condition as a monitoring access point; and
all wireless access points except the central access point and the monitoring access point are used as common access points.
In the preferred embodiment of the present invention, in the step S32, different working states are respectively formulated for different operation roles:
setting the working state of the central access point as follows: maintaining the signal transmitting function and the signal receiving function of the radio frequency card started by the central access point, and adjusting the transmitting power of the radio frequency card of the central access point to the maximum;
setting the working state of the monitoring access point as follows: closing the signal transmitting function of the radio frequency card of the monitoring access point, and only opening the signal receiving function of the radio frequency card;
setting the working state of a common access point as follows: closing a signal transmitting function and a signal receiving function of a common access point;
the operating states of all wireless access points within the wireless access group constitute a power saving scheme for the corresponding wireless access group.
The foregoing description is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included within the scope of the present invention.
Claims (16)
1. An energy saving system of a wireless communication device is applied to a wireless area network, wherein the wireless area network comprises a plurality of wireless access points; the energy-saving system is characterized by comprising:
The data acquisition system is used for dividing the wireless access points into a plurality of wireless access groups, the wireless access characteristics of all the wireless access points in each wireless access group are consistent, and then the data acquisition system acquires and outputs the wireless access data of each wireless access point of each wireless access group;
the data decision system is connected with the data acquisition system and is used for respectively determining the energy-saving scheme of each wireless access group according to the wireless access data;
the network management system is connected with the data decision system and is used for respectively issuing corresponding control instructions to the wireless access points of each wireless access group according to the energy-saving scheme so as to respectively control each wireless access point to enter a corresponding energy-saving state;
the wireless access characteristic is the network load change of the wireless access point;
the consistency of the wireless access characteristics of all the wireless access points of each wireless access group means that the degree of difference of the network load trend curves of all the wireless access points in each wireless access group along with time is within a certain tolerance range;
and predicting a low-load time period of each wireless access group and taking the low-load time period as a power saving time period of the wireless access group so as to execute the power saving scheme in the power saving time period.
2. The energy saving system of claim 1, wherein the data acquisition system specifically comprises:
the first dividing unit is used for pre-dividing all the wireless access points into a plurality of wireless access groups according to the wireless access data reported by each wireless access point;
and the second dividing unit is connected with the first dividing unit and is used for respectively carrying out consistency test on the wireless access characteristics of all the wireless access points in each wireless access group, scattering the wireless access groups which do not pass the consistency test and re-grouping.
3. The energy saving system of claim 2, wherein the second dividing unit specifically comprises:
the statistics module is used for counting the change trend data of the network load of each wireless access point along with the change of time;
the inspection module is connected with the statistics module, and is used for judging whether the change trend data of all the wireless access points are consistent or not according to each wireless access group respectively and outputting inspection results;
and the adjustment module is connected with the checking module and used for scattering the wireless access groups which do not pass the consistency check according to the checking result and grouping all the wireless access points which are not classified into the wireless access groups again.
4. The energy saving system of claim 1, wherein the data decision system specifically comprises:
a role allocation unit, for each wireless access group, the role allocation unit is configured to allocate an operation role to each wireless access point according to a network distribution position of the wireless access point;
a scheme making unit, connected to the role allocation unit, for making a corresponding energy saving scheme for each wireless access group according to the running roles of all the wireless access points in each wireless access group;
and the scheme issuing unit is connected with the scheme making unit and is used for issuing the energy-saving scheme to the network management system at the starting time of the preset energy-saving period.
5. The energy conservation system of claim 4, wherein the operational roles comprise a central access point, a listening access point, and a normal access point;
the role assignment unit determines the network distribution location of the wireless access point based on:
taking the wireless access points which are all neighbor access points with other wireless access points as the center access point;
taking the wireless access point with the distance from the central access point meeting the preset distance condition as the monitoring access point; and
And taking all the wireless access points except the central access point and the monitoring access point as the common access point.
6. The energy saving system of claim 5, wherein the distance condition preset is:
the distance between the wireless access point and the central access point exceeds a preset threshold; or alternatively
The wireless access point is furthest from the center access point.
7. The energy saving system of claim 5, wherein the scheme making unit specifically comprises:
the first formulation module is configured to set a working state of the central access point to: maintaining the signal transmitting function and the signal receiving function of the radio frequency card of the central access point, and adjusting the transmitting power of the radio frequency card of the central access point to the maximum;
the second formulation module is configured to set the working state of the listening access point to: closing the signal transmitting function of the radio frequency card of the monitoring access point, and only opening the signal receiving function of the radio frequency card;
the third formulation module is configured to set a working state of the common access point to: and closing the signal transmitting function and the signal receiving function of the common access point.
8. The energy saving system of claim 4, wherein the scheme issuing unit specifically comprises:
and the period prediction module is used for predicting a low-load period according to the historical wireless access data of the wireless access group and determining the low-load period as the energy-saving period.
9. The energy conservation system of claim 4, wherein the data decision system further comprises:
and the first termination unit is connected with the scheme issuing unit and is used for issuing an energy-saving termination instruction to the network management system when the energy-saving period expires so that the network management system informs the corresponding wireless access group of recovering the normal working state.
10. The energy conservation system of claim 4, wherein the data decision system further comprises:
the load monitoring unit is used for continuously monitoring terminal access requests of the wireless access groups in the energy-saving period;
and the second termination unit is respectively connected with the scheme issuing unit and the load monitoring unit and is used for issuing an energy-saving termination instruction to the network management system when the terminal access request accords with a preset recovery condition so that the network management system can inform the corresponding wireless access group to recover to a normal working state.
11. The energy saving system of claim 10, wherein for each of said radio access groups, the preset recovery conditions are:
the terminal access request received by the wireless access group exceeds a preset data volume, and the signal strength of the terminal access request is lower than a preset strength.
12. A method of power saving for a wireless communication device, characterized by being applied to a power saving system of a wireless communication device according to any one of claims 1 to 11;
the energy saving method comprises the following steps:
step S1, dividing the wireless access points into a plurality of wireless access groups, so that the wireless access characteristics of all the wireless access points in each wireless access group are consistent;
step S2, collecting and reporting wireless access data of each wireless access point of each wireless access group;
step S3, respectively determining an energy-saving scheme of each wireless access group according to the reported wireless access data, and then respectively issuing corresponding control instructions to the wireless access points of each wireless access group according to the energy-saving scheme so as to respectively control each wireless access point to enter the corresponding energy-saving state.
13. The energy saving method according to claim 12, wherein the step S1 specifically includes:
step S11, according to the wireless access data reported by each wireless access point, pre-dividing all the wireless accesses into a plurality of wireless access groups;
step S12, counting the change trend data of the network load of each wireless access point along with the time change;
step S13, respectively, for each wireless access group, determining whether the change trend data of all the wireless access points are consistent or not:
if the change trend data of the wireless access group is consistent, reserving the wireless access group;
if the change trend data of the wireless access group is inconsistent, scattering the wireless access group;
after completing the judgment of all the wireless access groups, then turning to step S14;
and S14, grouping all the wireless access points which are not grouped into the wireless access group again, and returning to the step S13 until the number of times that all the wireless access points are grouped into a corresponding wireless access group or regrouped reaches a preset regrouping threshold.
14. The energy saving method according to claim 12, wherein the step S3 specifically includes:
Step S31, for each wireless access group, respectively distributing operation roles for each wireless access point according to the network distribution position of the wireless access point;
step S32, according to the operation roles of all the wireless access points in each wireless access group, a corresponding energy-saving scheme is respectively formulated for each wireless access group;
step S33, respectively issuing the control instruction corresponding to the energy-saving scheme to each wireless access point at the start time of the preset energy-saving period, so as to respectively control each wireless access point to enter the corresponding energy-saving state.
15. The energy saving method of claim 14, wherein the operational roles include a center access point, a listening access point, and a normal access point;
in step S31, according to the network distribution position of the wireless access point:
taking the wireless access points which are all neighbor access points with other wireless access points as the center access point;
taking the wireless access point with the distance from the central access point meeting the preset distance condition as the monitoring access point; and
and taking all the wireless access points except the central access point and the monitoring access point as the common access point.
16. The energy saving method according to claim 15, wherein in step S32, different working states are respectively formulated for different operation roles:
setting the working state of the central access point as follows: maintaining the signal transmitting function and the signal receiving function of the radio frequency card of the central access point, and adjusting the transmitting power of the radio frequency card of the central access point to the maximum;
setting the working state of the monitoring access point as follows: closing the signal transmitting function of the radio frequency card of the monitoring access point, and only opening the signal receiving function of the radio frequency card;
setting the working state of the common access point as follows: closing the signal transmitting function and the signal receiving function of the common access point;
the operating states of all the wireless access points within the wireless access group constitute the power saving scheme of the corresponding wireless access group.
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