CN103024880A - Energy saving method and system of cell - Google Patents

Abstract

A method for saving energy in a cell, the method comprising: presetting the load level of a coverage area, each coverage area includes a plurality of cells, and the load level is at least three levels; the base station periodically reports the load of the cell to which it belongs, and is obtained from the load of the cell Coverage area load: the management system determines that the energy saving state of the cells in the coverage area needs to be adjusted according to the requirements of the load level and the coverage area load, and the management system issues an energy saving instruction to instruct the cells in the coverage area to directly adjust the energy saving state. This paper also discloses a system for saving energy in a cell. After applying the embodiments of the present invention, the complexity of energy-saving operation is reduced, and the energy-saving efficiency is improved.

Description

Method and system for saving energy in a residential area

technical field

The present invention relates to the technical field of communications, and more particularly, to a method and system for saving energy in a cell.

Background technique

Today, energy saving and emission reduction has become a hot spot of concern in the whole society, and the telecommunications industry, as an industry with high energy consumption, has also attracted great attention from the society. As the pace of mobile communication network construction continues to accelerate and the scale of the network expands at an unprecedented rate, the demand for energy consumption by telecom operators is also increasing. Therefore, whether it is from the perspective of reducing the operating costs of the enterprise itself or from the perspective of social responsibility, it is imperative for the telecommunications industry to carry out energy saving and consumption reduction work.

According to the requirements of telecom operators for energy saving, various domestic and foreign standard organizations and wireless network equipment providers are working hard to formulate relevant standards and research and develop wireless network equipment that supports various energy-saving strategies. Currently, for 3G/LTE networks, generally recognized energy-saving technologies include cell shutdown, carrier shutdown, reducing the transmit power of radio frequency transceivers, and shutdown of home base stations.

In order to enable the above-mentioned energy-saving technologies to operate effectively, the following energy-saving management instructions are simultaneously stipulated in the functional requirements of the energy-saving management (ESM), which has ensured that each energy-saving technology operates within a controllable and manageable range.

Energy saving function enabled: Allow energy saving function to execute.

Energy saving function off: prohibit the execution of energy saving function.

Energy saving activation: The process of shutting down cells/network elements or restricting the use of physical resources for energy saving purposes. The result is that the radio transmission of a particular network element is in an energy-saving state.

Energy saving compensation activation (Energy saving compensation activation): The process of changing the configuration information of network elements or cells, and keeping the power on for energy saving compensation for other network elements or cells, for example, by increasing the coverage area of a certain base station. The result is that the network element is in the energy saving compensation state.

Energy saving deactivation (Energy saving deactivation): The process of starting up or restoring the use of physical resources to cells/network elements that have previously activated the energy saving state. The result is that a certain network element enters a non-energy saving state.

Energy saving compensation deactivation (Energy saving compensation deactivation): The process of entering a non-energy saving state from an energy saving compensation state, for example, reducing the previously increased coverage area.

In the prior art, the above-mentioned energy-saving management instructions realize the control of the energy-saving function through the interaction between the integrated reference point manager (IRPManager) and the integrated reference point agent (IRPAgent), and the interaction is realized through the northbound interface (Itf-N). IRPAgent contacts the base station of the cell to control the energy saving state of the cell. These states include:

Non-Energy Saving State (not Participating In EnergySaving state): The default state under peak traffic conditions, and no special energy saving function is being executed.

Energy Saving state: In the case of off-peak traffic, some functions of network elements or cells are shut down or resources are restricted in other ways, but the network elements or cells are still controllable.

Compensating For Energy Saving state: In the case of non-peak traffic, the network element remains powered on and takes over the coverage area corresponding to the adjacent base station that is already in the energy saving state.

In the existing energy-saving technology, an energy-saving method for traffic from "peak traffic situation" to "off-peak traffic situation" is described. However, in the actual network, there are often scenarios where the traffic volume will be between the two for a long time, such as office buildings or schools. This type of area generally has more business volume during the day, but after 5 or 6 pm, with the end of work or school, the business volume in this type of area decreases sharply, but some people are still working overtime or studying by themselves, and the business volume is still high. Maintained at a certain level, but significantly lower than during the day, and after 10 o'clock in the evening, the business volume in these areas becomes negligible. It can be seen that the business volume of these places shows an obvious stepwise decline. If the existing energy-saving method is adopted, the energy-saving is only started when entering a low-traffic time period. During a day, some cells are shut down within a short period of time, while most of the time the cells are all turned on, which shows that a lot of resources are wasted.

At the same time, in the prior art, the energy-saving operation instructions of the network elements are provided to ensure that the network elements can enter/exit energy saving and enter/exit energy-saving compensation. However, it does not support the operation of directly shutting down the cell in the "energy saving compensation state". Although it is possible to perform the "energy saving compensation deactivation" operation on the cell in the "energy saving compensation state" to make it enter the "non-energy saving state" and then perform the "shutdown" operation, but the complexity of switching the energy saving state of the cell many times And the time consumed will be greatly increased.

Contents of the invention

An embodiment of the present invention proposes a method for saving energy in a community, which reduces the complexity of energy-saving operations and improves energy-saving efficiency.

The embodiment of the present invention also proposes an energy-saving system for a community, which reduces the complexity of energy-saving operations and improves energy-saving efficiency.

The technical scheme of the embodiment of the present invention is as follows:

A method for saving energy in a cell, the method comprising:

Presetting the load level of the coverage area, each coverage area includes multiple cells, and the load level is at least three;

The base station periodically reports the load of the cell to which it belongs, and the load of the coverage area is obtained from the cell load;

The management system determines that the energy saving state of the cells in the coverage area needs to be adjusted according to the requirements of the load level and the load of the coverage area, and the management system issues an energy saving command to instruct the cells in the coverage area to directly adjust the energy saving state.

The determination by the management system that the cell energy-saving state of the coverage area needs to be adjusted according to the requirements of the load level and the load of the coverage area includes:

The current load level of the coverage area is determined from the threshold corresponding to the load level and the coverage area load, the current load level of the coverage area is different from the load level to which the coverage area belongs, and the coverage area is in If the threshold corresponding to the current load level is satisfied within the preset T, it is determined that the energy saving state of the cell in the coverage area needs to be adjusted.

The issuing of the energy saving instruction by the management system to instruct the cells in the coverage area to directly adjust the energy saving state includes: directly adjusting the energy saving state of the cells in the coverage area to a non-energy saving state.

The issuing of the energy-saving instruction by the management system to instruct the cells in the coverage area to directly adjust the energy-saving state includes: directly adjusting the energy-saving state of the cells in the coverage area to an energy-saving state.

The management system issuing an energy-saving instruction to instruct the cells in the coverage area to directly adjust the energy-saving state includes: directly adjusting the energy-saving state of the cells in the coverage area to a multi-level energy-saving compensation state.

The directly adjusting the energy saving state of the cell in the coverage area to a multi-level energy saving compensation state includes: directly adjusting the energy saving state of the cell in the coverage area to be multi-level through the northbound interface Itf-N through a multi-level energy saving compensation activation/deactivation command Energy saving compensation status.

The directly adjusting the cell energy saving state of the coverage area to be a multi-level energy saving compensation state includes: directly adjusting the cell energy saving state of the coverage area to be different from the multi-level energy saving compensation state before adjustment.

The management system issuing an energy-saving instruction to instruct the cells in the coverage area to directly adjust the energy-saving state includes: directly adjusting the multi-level energy-saving compensation state of the cells in the coverage area to an energy-saving state.

The issuing of the energy saving instruction by the management system to instruct the cells in the coverage area to directly adjust the energy saving state includes: directly adjusting the energy saving state of the cells in the coverage area to an energy saving compensation state.

A cell energy-saving system, the system includes a control module and a base station,

The control module includes:

The setting unit is used to pre-set the load level of the coverage area, and the load of the coverage area is determined by the cell load, and the load level is at least three levels;

A monitoring unit, configured to determine that the energy-saving status of cells in the coverage area needs to be adjusted according to the requirements of the load level and the load of the coverage area;

an energy-saving unit, configured to issue instructions to the base station;

The base station includes:

The reporting unit is used to periodically report the load of the cell to which it belongs;

An execution unit, configured to receive the instruction to directly adjust the energy saving state of the cell in the coverage area.

The base station further includes: a feedback unit, configured to feed back the adjusted energy saving state of the cell to the control module.

It can be seen from the above technical solutions that in the embodiment of the present invention, the load level of the coverage area is preset, each coverage area includes multiple cells, and the load level is at least three levels; the base station periodically reports the load level of the cell to which it belongs , the coverage area load is obtained from the cell load; the management system determines that the energy saving state of the cell in the coverage area needs to be adjusted according to the requirements of the load level and the coverage area load, and the management system issues an energy saving instruction to instruct the cells in the coverage area to directly adjust Energy saving state. The refinement of the load level improves the energy-saving efficiency, and since the energy-saving state of the cell can be directly adjusted, the complexity of the energy-saving operation can be reduced.

Description of drawings

FIG. 1 is a schematic flow chart of a method for energy saving in a cell according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of interaction of load energy saving compensation activation messages in an embodiment of the present invention;

FIG. 3 is a schematic diagram of message interaction for activation of low-load energy-saving compensation according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a three-level energy-saving realization process according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a system for energy saving in a cell according to an embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

In the embodiment of the present invention, the refinement of the load level improves the energy saving efficiency, and the Itf-N can directly adjust the energy saving status of the cell through the multi-level energy saving compensation activation/deactivation command, thus reducing the complexity of the energy saving operation.

Referring to accompanying drawing 1, it is a schematic flow diagram of a method for saving energy in a community, which specifically includes the following steps:

Step 101, presetting the load level of the coverage area, each coverage area includes multiple cells.

The coverage area of multi-level energy saving and the load level of the coverage area are preset. The area where the area load shows obvious step change is set as an independent coverage area. Each coverage area includes multiple cells, and the cells within the coverage area are associated cells of the coverage area. Each coverage area is regarded as an independent energy-saving unit, and each cell can only belong to one coverage area. Set multiple load levels, each load level corresponds to a corresponding threshold.

Step 102, the base station periodically reports the load of the cell to which it belongs, and obtains the load of the coverage area from the load of the cell.

The base station periodically reports the load of the cell to which it belongs, so that the load of the coverage area can be obtained from the load of the cell. The coverage area load refers to the average load of all cells in the coverage area.

Step 103: Determine that the energy saving state of the cell in the coverage area needs to be adjusted according to the requirements of the load level and the load of the coverage area.

Each load level is preset to correspond to a corresponding threshold. When the coverage area load is between two thresholds corresponding to the load level, the coverage area is at the load level. After each cell in the coverage area turns on the energy-saving switch, the current load level of the coverage area is determined by the threshold corresponding to the load level and the coverage area load. The current load level of the coverage area is different from the load level to which the coverage area belongs, and the coverage area is in If the threshold value corresponding to the current load level is satisfied within the preset T, it is determined that the energy saving state of the cell in the coverage area needs to be adjusted. The load level to which the coverage area belongs is the coverage level of the coverage area before the current load level of the coverage area is determined. The coverage area enters the current load level.

When determining the energy saving status of the cell in the coverage area needs to be adjusted, it is not only necessary to judge whether the coverage area enters the corresponding load level to meet the threshold requirements, but also to meet the time requirement, that is, the time after the coverage area load meets the load level requirements and the duration T, it can be determined that the coverage area really enters the corresponding load level. T is preset according to the actual situation.

In the prior art, the load levels only include high and low levels. However, for the present invention, there are at least three load levels. Therefore, in order to make up for the fact that the single "Energy Saving Compensation Activation" instruction in the prior art cannot enable the base station to clearly know the wireless parameters corresponding to each load level, and the wireless parameters are used to set the coverage of the base station, this instruction is extended as follows:

Take three load levels as an example.

Medium load energy saving compensation activation;

Low load economizer active.

Correspondingly, the "energy saving compensation deactivation" command also needs to be extended as follows:

Medium load energy saving compensation is deactivated;

Low load economizer deactivated.

Correspondingly, due to the increase of energy-saving management instructions, it is necessary to expand the Itf-N message interaction content between IRPManager and IRPAgent. As shown in Figure 2, the IRPManager sends mid-load energy-saving supplementary activation/deactivation to the IPRAgent, and the IRPAgent returns the processing result to the IRPManager. In Fig. 3, the IRPManager sends low-load energy-saving supplementary activation/deactivation to the IPRAgent, and the IRPAgent returns the processing result to the IRPManager.

Correspondingly, while extending the "Energy Saving Compensation Activation" command, due to the introduction of multi-level energy saving technology, some cells in the coverage area will expand their original coverage to varying degrees at medium load levels and low load levels , to make up for the coverage hole caused by the closed cell, so in order to distinguish the difference in the coverage compensation range provided by the same cell at the medium load level and low load level, the original "energy saving compensation state" is extended as follows in the present invention :

Moderate load energy saving compensation state;

Low load energy saving compensation state.

Step 104, the management system instructs the cells in the coverage area to directly adjust the energy saving state.

According to the load level of the coverage area, the management system sends energy-saving instructions to each base station to directly adjust the energy-saving state of the cell in the coverage area to a non-energy-saving state, an energy-saving state, and a multi-level energy-saving compensation state.

The Itf-N directly adjusts the energy saving state of the cell in the coverage area to the multi-level energy saving compensation state through the multi-level energy saving compensation activation/deactivation command. Due to the addition of multi-level load energy-saving compensation activation commands and multi-level load energy-saving compensation deactivation commands. Therefore, it is possible to directly adjust the energy-saving state of the cell in the coverage area to be different from the multi-level energy-saving compensation state before adjustment; directly adjust the multi-level energy-saving compensation state of the cell in the coverage area to an energy-saving state; directly adjust the energy-saving state of the cell in the coverage area It is the state of energy saving compensation. In this way, the energy saving state of the cell can be switched in any state.

In this way, within a coverage area, multiple cells are in the multi-level energy-saving supplementary state, and multiple cells are in the energy-saving state. Compared with the prior art, the energy-saving method in the present invention improves the energy-saving efficiency because it is multi-stage energy-saving. Moreover, since the energy-saving state of the cell is directly adjusted, it is no longer necessary to adjust the energy-saving state of the cell through switching between multiple states, which reduces the complexity of energy-saving operations.

The technical solution of the present invention will be described in detail below in conjunction with FIG. 4 with load levels including high, medium and low levels.

Step 401: The management subsystem turns on the energy-saving switch of each base station in the coverage area. The management subsystem can be a network element management system or a network management system, or is composed of both a network element management system and a network management system.

Step 402: All base stations in the coverage area periodically report the load condition of the cell to the management subsystem.

Step 403: The management subsystem determines the load level corresponding to the coverage area according to the load information reported by each base station and the preset load level.

Step 404: When the management subsystem monitors that the load level of the coverage area changes from a high load level to a medium load level, and the duration of entering the medium load level satisfies the duration set for the medium load level, the energy saving operation is triggered and an instruction is issued. Some cells are activating energy-saving compensation for medium loads.

Send the mid-load energy-saving compensation activation command to the base station, and the relevant cells expand the coverage.

The adjusted coverage of the cell in the medium-load energy-saving compensation state should be equivalent to the coverage of the original coverage area, and there should be no coverage holes.

Step 405: After the base station receives the medium-load energy-saving compensation activation instruction issued by the management subsystem, the energy-saving state of the cell changes from the non-energy-saving state to the medium-load energy-saving compensation state.

Step 406: Return the processing result.

Step 407: After the management subsystem receives the adjustment of the energy saving state of all the cells in the coverage area that should execute the energy saving compensation activation command at the medium load level, it sends the energy saving activation command to the base stations of the cells that should be in the energy saving state at the medium load level. The base station directly shuts down some cells in the non-energy-saving state.

Step 408: the base station executes an energy saving activation command, and shuts down the cell. The energy-saving state of the cell is directly converted from the non-energy-saving state to the energy-saving state.

Step 409: Return the processing result.

Among them, steps 404 to 409 are intermediate load steps.

Step 410: The base station in the coverage area periodically reports the load conditions of all cells not closed to the management subsystem.

Step 411: The management subsystem determines the load level corresponding to the coverage area according to the load information reported by each base station and the preset load level.

Step 412: The management subsystem monitors that the load level of the coverage area is further reduced, and when the load level enters the low load level from the medium load level, triggers an energy-saving operation, and orders some cells to perform a low-load energy-saving compensation activation operation.

The low-load energy-saving compensation activation command is sent to the base station, and the coverage of the relevant cells is further expanded.

The adjusted coverage of the cell in the low-load energy-saving compensation state should be equivalent to the coverage of the original coverage area, and there should be no coverage holes.

Step 413: After the base station receives the low-load energy-saving compensation activation instruction issued by the management subsystem, the energy-saving state of the cell changes from the medium-load energy-saving compensation state to the low-load energy-saving compensation state.

Step 414: Return the processing result.

Step 415: After the management subsystem receives the energy-saving state adjustment of all the cells in the coverage area that should execute the low-load energy-saving compensation activation command, it sends the energy-saving activation command to the base station of the cell that should be in the energy-saving state at the low load level. The base station directly shuts down some cells in the medium-load energy-saving state.

Step 416: the base station executes an energy saving activation command, and shuts down the cell. The energy-saving state of the cell is directly converted from the medium-load energy-saving compensation state to the energy-saving state.

Step 417: Return the processing result.

Among them, steps 410 to 417 are low-level loading steps.

Referring to FIG. 5 , it is a schematic structural diagram of a cell energy saving system, including: a control module 501 and a base station 502 .

Control module 501 includes:

The setting unit 5011 is configured to preset the load level of the coverage area, and the load of the coverage area is determined by the cell load.

The monitoring unit 5012 is configured to determine that the energy saving state of the cell in the coverage area needs to be adjusted according to the requirements of the load level and the load of the coverage area, and the coverage area meets the requirements of the load level within the time T;

An energy saving unit 5013, configured to issue instructions to the base station;

Base station 502 includes:

A reporting unit 5021, configured to periodically report the load of the cell to which it belongs;

The execution unit 5022 is configured to directly adjust the energy saving state of the cell in the coverage area.

The feedback unit 5023 is configured to feed back the adjusted energy saving state of the cell to the control module 501 .

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (11)

1. A method for community energy saving, characterized in that the method comprises: Presetting the load level of the coverage area, each coverage area includes multiple cells, and the load level is at least three; The base station periodically reports the load of the cell to which it belongs, and the load of the coverage area is obtained from the cell load; The management system determines that the energy saving state of the cells in the coverage area needs to be adjusted according to the requirements of the load level and the load of the coverage area, and the management system issues an energy saving command to instruct the cells in the coverage area to directly adjust the energy saving state. 2. The method for energy saving in a cell according to claim 1, wherein the management system determines that the energy saving state of the cell in the coverage area needs to be adjusted according to the requirements of the load level and the load in the coverage area, including: The current load level of the coverage area is determined from the threshold corresponding to the load level and the coverage area load, the current load level of the coverage area is different from the load level to which the coverage area belongs, and the coverage area is in If the threshold corresponding to the current load level is satisfied within the preset T, it is determined that the energy saving state of the cell in the coverage area needs to be adjusted. 3. The method for energy saving in a cell according to claim 1, wherein the energy saving command issued by the management system to instruct the cells in the coverage area to directly adjust the energy saving state comprises: directly adjusting the energy saving state of the cells in the coverage area to non- Energy saving state. 4. The method for energy saving in a cell according to claim 1, wherein the energy saving instruction issued by the management system to instruct the cells in the coverage area to directly adjust the energy saving state comprises: directly adjusting the energy saving state of the cells in the coverage area to energy saving state. 5. The method for energy saving in a cell according to claim 1, wherein the energy saving instruction issued by the management system to instruct the cells in the coverage area to directly adjust the energy saving state comprises: directly adjusting the energy saving state of the cells in the coverage area to Level energy saving compensation status. 6. The method for energy saving in a residential area according to claim 5, wherein said directly adjusting the energy saving state of the area in said coverage area to be a multi-level energy-saving compensation state comprises: activating/ The deactivation instruction directly adjusts the energy saving state of the cell in the coverage area to a multi-level energy saving compensation state. 7. The method for energy saving in a cell according to claim 5, wherein said directly adjusting the energy saving state of the cell in the coverage area to be a multi-level energy saving compensation state comprises: directly adjusting the energy saving state of the cell in the coverage area to be different from Adjust the previous multi-level energy saving compensation status. 8. The method for energy saving in a cell according to claim 1, wherein the energy saving instruction issued by the management system to instruct the cells in the coverage area to directly adjust the energy saving state comprises: directly setting the multi-level energy saving status of the cells in the coverage area to The compensation state is adjusted to the energy saving state. 9. The method for energy saving in a cell according to claim 1, wherein the energy saving instruction issued by the management system to instruct the cells in the coverage area to directly adjust the energy saving state comprises: directly adjusting the energy saving state of the cells in the coverage area It is the state of energy saving compensation. 10. A cell energy-saving system, characterized in that the system includes a control module and a base station, The control module includes: The setting unit is used to pre-set the load level of the coverage area, and the load of the coverage area is determined by the load of the cell, and the load level is at least three levels; A monitoring unit, configured to determine that the energy saving status of cells in the coverage area needs to be adjusted according to the requirements of the load level and the load of the coverage area; an energy-saving unit, configured to issue instructions to the base station; The base station includes: The reporting unit is used to periodically report the load of the cell to which it belongs; An execution unit, configured to receive the instruction to directly adjust the energy saving state of the cell in the coverage area. 11. The cell energy saving system according to claim 10, wherein the base station further comprises: a feedback unit, configured to feed back the adjusted cell energy saving state to the control module. the

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