WO2010028595A1

WO2010028595A1 - Packet gateway and method for saving power consumption

Info

Publication number: WO2010028595A1
Application number: PCT/CN2009/073833
Authority: WO
Inventors: 郭�东
Original assignee: 华为技术有限公司
Priority date: 2008-09-12
Filing date: 2009-09-09
Publication date: 2010-03-18
Also published as: CN101360075A; CN101360075B

Abstract

A packet gateway and a method for saving power consumption are provided. The packet gateway comprises: a service processing module used for processing on-line and off-line signaling of a terminal user and processing and retransmitting the data message of packet service of the terminal user; a management control module used for determining the number of the service processing modules needed to work normally, setting the determined quantitative service processing modules in a normal work state, and setting the rest of service processing modules in a power consumption control state. The method for saving power consumption comprises that: the number of the service processing modules needed to work normally is determined, the determined quantitative service processing modules are set in the normal work state, and the rest of service processing modules are set in the power consumption control state. Application of the present invention reduces the energy consumption of the gateway obviously.

Description

Packet gateway and method for saving power consumption This application claims priority to Chinese patent application filed on September 12, 2008, the Chinese Patent Office, Application No. 200810222253.8, entitled "A Packet Gateway and Power Saving Method" The entire contents of which are incorporated herein by reference. Technical field

The present invention relates to the field of communications technologies, and in particular, to a packet gateway and a method for saving power consumption. Background technique

With the increasing popularity of the Internet and mobile terminals, packet networks are rapidly evolving with the advantages of high efficiency and low cost. Currently, there are mainly Wide-Bell Code Division Multiplex Access (W-CDMA), Code Division Multiplex Access (CDMA) and Worldwide Interoperability for Microwave Access (WiMAX). Three kinds of packet networks, among which the gateways responsible for completing the packet service are a GPRS Gateway Support Node (GGSN), a Packet Data Serving Node (PDSN), and an Access Service Gateway ( Access Service Network Gateway, ASN GW). These three gateways are located between the access network and the public packet data network in the network, and their functions are to complete the channel establishment and service data transmission of the IP device communication between the mobile terminal and the public packet data network. These three devices can be collectively referred to as a packet gateway.

The three types of packet gateways described above are generally composed of a plurality of working modules. The number of working modules needs to meet the maximum load of the gateway, but the time when the gateway runs to achieve the maximum service load is small. Moreover, due to the rapid development of packet services, the variety of services and the increasing data traffic, more and more packet gateways need to be deployed. Therefore, the energy consumed by these gateways themselves and the cooling of the air conditioners required after the heat generation make the energy consumption increase sharply, and the global energy conservation and emission reduction In the background, how to save power becomes an urgent problem to be solved.

In the prior art, the power consumption control method for dynamically down-clocking each CPU in the gateway does not have obvious effect of saving power, and the ideal power saving cannot be achieved. Summary of the invention

In order to improve the degree of consumption of the gateway, the embodiment of the present invention provides a packet gateway and a method for saving power consumption. The technical solution is as follows:

A packet gateway, the packet gateway includes:

a management control module, configured to determine a quantity of service processing modules that need to work normally in the multiple service processing modules of the packet gateway, set the determined number of service processing modules to a normal working state, and set the remaining number of service processing modules The power consumption control state is used for reducing power consumption. The multiple service processing modules are configured to process the uplink and downlink signaling of the terminal user and process and forward the data packet of the terminal user packet service.

A method for saving power by a packet gateway, the method comprising:

Determining the number of service processing modules that need to work normally in multiple service processing modules of the packet gateway;

Setting the determined number of service processing modules to a normal working state, and setting the remaining number of service processing modules to a power consumption control state for reducing power consumption;

The service processing module set to the normal working state processes the uplink and downlink signaling of the terminal user and processes and forwards the data packet of the terminal user packet service. DRAWINGS

1 is a schematic diagram of a GGSN gateway in the prior art;

2 is a schematic diagram of a PDSN gateway in the prior art;

3 is a schematic diagram of an ASN GW gateway in the prior art;

4 is a schematic diagram of a packet gateway provided by Embodiment 1 of the present invention; 5 is a schematic structural diagram of reducing packet impact in a packet gateway according to Embodiment 1 of the present invention; FIG. 6 is a flowchart of a method for saving power consumption of a packet gateway according to Embodiment 2 of the present invention; FIG. 7 is a second embodiment of the present invention; A flow chart of a method for dynamically saving power of a packet gateway is provided. FIG. 8 is a flowchart of a method for reducing impact on a service in a method for saving power of a packet gateway according to Embodiment 2 of the present invention. detailed description

The packet gateway described in the embodiment of the present invention may be a GGSN, a PDSN, or an ASN GW. The structure of various packet gateways will be first described below to better understand the embodiments of the present invention. Figure 1 is a schematic diagram of a GGSN gateway. The GGSN mainly has Gn, G i, Gp, Gy, Ga, Gmb logical interfaces. Figure 2 is a schematic diagram of a PDSN gateway. The PDSN mainly has RP and P i logical interfaces, and Figure 3 is a schematic diagram of the ASN GW gateway. The ASN GW mainly has R6, R4, and R3 logical interfaces. The communication parties on all the logical interfaces of the above-mentioned packet gateways are identified by IP addresses. Through these logical interfaces, the packet gateway interacts with surrounding network elements to complete Packet service of mobile terminal users.

In the prior art, a relatively common method for saving power in a packet gateway is to dynamically reduce the power consumption of each CPU in the gateway, that is, when the CPU usage is low, adjust the CPU running speed, so that the CPU It can operate at lower frequency or lower voltage to save power. This technology works in the same way as the energy-saving mode provided by Windows on a personal PC. However, in practical applications, in addition to the CPU in each working unit of the packet gateway, there are storage medium, FPGA logic, hardware acceleration chip, peripheral control circuit, etc., and the power consumption of the CPU is only a part of it, so even the packet gateway All CPUs are dynamically power-controlled, and the power consumption can be reduced compared with the original total power consumption. As long as the CPU is powered up, there will be a certain amount of power consumption. This part cannot pass the dynamic drop. Frequency power control to save. To this end, the embodiment of the present invention reduces the power consumption and heat dissipation of the device by controlling the working state of the service processing module to achieve a power saving effect.

Example 1 Referring to FIG. 4, an embodiment of the present invention provides a packet gateway, where the packet gateway determines the number of service processing modules that need to work normally, sets a determined number of service processing modules to a normal working state, and the remaining number of service processing modules. Set to the power control state, which significantly reduces the power consumption and heat dissipation of the device itself, achieving good energy saving effect.

The packet gateway 1 includes a route distribution module 2, a plurality of service processing modules 3, and a management control module 4;

The route distribution module 2 is configured to send out a physical interface, configure an IP address of each physical interface, and receive and distribute the packet outside the packet gateway, and send the packet processed by the packet gateway to the outside;

All the IP packets received by the packet gateway 1 first enter the route distribution module 2. When the destination IP address of the received message is the IP address of the logical interface in the packet gateway 1, the route distribution module 2 analyzes the destination IP address. The address is accurately distributed to the service processing module 3 or the management control module 4, and the corresponding module performs packet processing.

All the IP packets sent by the packet gateway 1 , that is, the packets generated by the service processing module 3 or the management control module 4 are first sent to the route distribution module 2 and sent out by the route distribution module 2 .

After the route distribution module 2 receives a packet, if the destination IP address of the packet is not the IP address of each logical interface in the packet gateway 1, the route distribution module 2 automatically forwards the packet to the destination IP address according to the routing table. One hop device.

The plurality of service processing modules 3 are configured to complete the uplink and downlink network signaling processing of the terminal user and the data packet processing and forwarding when performing the packet service according to a standard communication protocol.

There are multiple service processing modules in the packet gateway, and each service processing module runs the same service software. The software processes the uplink and downlink signaling processing of the terminal user and the data packet processing and forwarding of the packet service according to the standard communication protocol. The packets processed by the service processing module may be referred to as service packets. The uplink and downlink network signaling of the terminal user refers to that the terminal user needs the signaling interaction between the terminal and the neighboring device to ensure that the terminal user implements the Internet or the network. Each service processing module is configured with a set of logical interface IP addresses, and the surrounding network element sends a service packet to the local gateway. The destination IP address of the service packet is the IP address of the corresponding logical interface in the gateway. The service packets are sent first. After the route distribution module receives the packet, the route distribution module forwards the packet to the corresponding service processing module according to the destination IP address of the service packet. After receiving the service packet, the service processing module processes the packet, and generates a local packet after the processing. The source IP address of the local packet is also the IP address of the corresponding logical interface, and then the service processing module sends the local packet to the route distribution module. After the route distribution module receives the next hop corresponding to the destination IP address according to the routing table. The device sends.

Therefore, each service processing module presents a separate packet gateway logical functional entity to the surrounding network element with a set of logical interface IP addresses configured. These business process flows are already communication standards and will not be detailed here.

The management control module 4 is configured to process non-service packets such as routing protocols, operation and maintenance, and perform operation management on the entire device.

The management control module 4 also configures a logical interface IP address, and the peripheral network element sends a non-service packet to the packet gateway 1. The destination IP address of the non-service packet is the IP address of the logical interface, and the non-service packets are sent first. After the route distribution module 2 receives the route, the route distribution module 2 forwards the message to the management control module 4, and after receiving the non-service>3⁄4 text, the management control module 4 processes the local message, and the local message is generated. The source IP address is also the IP address of the logical interface, and then the management control module 4 sends the local packet to the route distribution module 2, and after receiving the route, the route distribution module 2 sends the next hop device corresponding to the destination IP address according to the routing table. .

The packet gateway 1 may receive the packet, process, respond, and then send it to other network elements, or may generate a local packet and send it to other network elements, and then receive the response before processing.

The neighboring network element interacts with the packet gateway 1 to obtain corresponding routing information, which can be ensured by dynamic route learning or manual configuration to ensure the IP addresses of the various logical interfaces of the service processing module 3 and the management control module 4 in the packet gateway 1. The IP address of the physical interface of the address and route distribution module becomes one megabyte adjacent. The management control module 4 is further configured to determine the number of service processing modules that need to work normally in the multiple service processing modules of the packet gateway, set the determined number of service processing modules to a normal working state, and the remaining number of service processing The module is set to the power control state.

The management control module 4 specifically includes:

The determining unit is configured to read a preset power consumption control rule, and directly determine the number of service processing modules that need to work normally according to the preset power consumption control rule.

The preset power consumption control rule specifies how many service processing modules need to work normally in the current time period. For example, the packet gateway has six service processing modules, and the power consumption control rule specifies 23: 00-7: 00 per day. The time period requires two service processing modules. Therefore, the determining unit can directly determine two service processing modules that need to work normally according to the power consumption control rule in the daily period of 23: 00-7: 00.

And a setting unit, configured to set the determined number of service processing modules to a normal working state according to the number of service processing modules determined to be working normally determined by the determining unit, and set the remaining number of service processing modules to be in a power consumption control state.

The remaining number refers to the number of the plurality of service processing modules except the determined number of service processing modules that need to work normally. Continuing with the above example, the setting unit sets the determined two service processing modules to the normal working state, and the remaining number of service processing modules, that is, the four service processing modules, are set to the power consumption control state.

The management control module further includes:

a recording unit, configured to record the number of times that all service processing modules are controlled by power consumption;

Correspondingly, when the setting unit is configured to set the remaining number of service processing modules to a power consumption control state, the service processing module with the least number of power consumption control times is preferentially set to a power consumption control state.

Such a gateway that determines the number of service processing modules that need to work normally by reading a preset power consumption control rule may be referred to as a static power saving packet gateway.

The management control module 4 may further include:

a determining unit, configured to read a preset power consumption control rule, and determine whether the current time period needs to be entered Line power control.

This power control rule specifies whether power consumption control is required for the current time period. For example, power control is not required from 7:00 to 23:00 during the daytime, and power control is required from 3:00 to 7:00 in the night. Of course, it is also possible to use real-time power consumption control without making time judgments.

The following describes a dynamic power-saving packet gateway that calculates the number of service processing modules that need to work properly.

For the sake of clarity, the maximum traffic load that the gateway is allowed to run can be recorded as MaxLoad, which matches the gateway hardware capabilities. The maximum service load that each service processing module can carry is recorded as sing le-MaxLoad. The service load currently carried by each service processing module is recorded as sing le-Rea lLoad, and the actual current total service load is recorded as Rea lLoad. The total number of processing modules is recorded as Tota lN. The number of service processing modules that need to work normally for the current service is recorded as NeedNum. The number of service processing modules currently working normally is recorded as Rea lN. This embodiment assumes that the maximum service load s ing le-MaxLoad that each service processing module can carry is the same. Generally, the maximum service load s ingle-MaxLoad that each service processing module can carry is the same.

The management control module 4 specifically includes:

The first calculating unit is configured to calculate a maximum service load s ing le-MaxLoad sum that can be carried by all the service processing modules.

The management control module 4 first reads a default license file, which records the maximum service load MaxLoad that the gateway is allowed to run. By reading the default license file, the maximum service load MaxLoad allowed by the packet gateway is obtained, for example: The number of users hosted, throughput, and more. Before, after or at the same time, the service processing module of the packet gateway reports the maximum service load sing le-MaxLoad that can be carried by the packet to the management control module 4, and the first of the management control module 4 The calculation unit calculates the sum of the maximum service load sing le-MaxLoad that can be carried by all the service processing modules, and rejects the service that is greater than the maximum service load MaxLoad defined by the default license file.

The first computing unit is further configured to load the traffic load currently carried by each service processing module After the s ing le-Rea lLoad is reported to the management control module 4, the current total service load of the packet gateway is calculated.

The second calculating unit is configured to calculate, according to the current total service load Rea lLoad calculated by the first calculating unit and the maximum service load MaxLoad that the gateway is allowed to run, calculate the number of service processing modules that need to work normally, NeedNum, and the service that needs to work normally The number of processing modules NeedN is used as the first quantity; the specific calculation formula is: RealLoad

NeedNum « .

MaxLoad

TotalNum where NeedNum is a function of Rea lLoad.

The obtaining unit is configured to obtain the number of service processing modules that are currently working normally, Rea lNum, and make the number of service processing modules that are currently working normally Rea lN as the second quantity;

And a comparing unit, configured to compare the first quantity and the second quantity, and calculate a difference between the first quantity and the second quantity; that is, calculate a difference between the NeedNum and the Rea lNum.

a first control unit, configured to: when the first quantity is greater than the second quantity, the service processing module that is currently in the power consumption control state, and the service processing module of the difference quantity calculated by the comparison unit is set to a normal working state;

That is, when NeedNum is greater than Rea 1N, the number of (NeedNum-RealNum) service processing modules in the power consumption control state is set to the normal working state.

The second control unit is configured to: when the first quantity is less than the second quantity, the service processing module that is currently in the normal working state, and the service processing module of the difference quantity calculated by the comparison unit is set to the power consumption control state.

That is, when the NeedN draw is smaller than Rea lNum, the service processing module in which the number of (RealNum-NeedNum) is in a normal working state is set to the power consumption control state.

The second control unit may further include:

a reading subunit, configured to read a preset power consumption control rule when the first quantity is less than the second quantity Then, obtaining a power consumption control type corresponding to the service processing module of the first quantity and the second quantity difference value in the service processing module that is currently in a normal working state;

a first setting subunit, configured to: when the first quantity is less than the second quantity, according to a power consumption control type obtained by the reading subunit, the service processing module currently in a normal working state, the first quantity and the second quantity The difference processing service module is set to the corresponding power control state.

The second calculating unit may specifically include:

The redundancy calculation sub-unit is configured to: after calculating the current total service load calculated by the first calculation unit and the maximum service load allowed by the gateway, calculating the number of service processing modules that need to work normally, and processing the service that needs to work normally The number of modules plus the preset amount of redundancy, and the number of redundant service processing modules that need to work properly is taken as the first quantity.

The number of calculated business processing modules that need to work normally NeedN allows the addition of redundancy to prevent the shortage of NeedN when burst traffic occurs.

The power control rule may be manually preset or modified in real time. The power control rule includes: defining whether a certain time period needs power control, and the number of service processing modules that need to work normally. The amount of redundancy, the type of power control operation set according to different time periods. The types of power control include power-down, sleep, and dynamic frequency-down. These three types of power control are well known in the art and will not be described here.

For example, you can set Monday to Friday 8:00 am to 12:00 and 14:00 to 1 8:00, no power control is required, the gateway operates normally; 12 to 14 points, power control, you can The power control type is set to dynamic frequency reduction; power control from 8 to 24 points, the power control type can be set to sleep; power control is performed from 24 to 8 am, set to power off, the energy saving effect is most obvious .

In order to reduce the impact on the user's service after power-off or power-down of the packet gateway, the service on the service processing module that needs to perform power consumption control can be backed up to another normal service. On the module, therefore, referring to FIG. 5, the second control unit may further include: The locking subunit 11 is configured to: when the first quantity is less than the second quantity, the service processing module that is currently in the normal working state, and the service processing module of the difference quantity calculated by the comparison unit is set to the power consumption control state, The difference processing service module is locked;

The meaning of the lock is to continue to carry the existing services, but no longer accept new services. The frequency reduction sub-unit 12 is configured to dynamically down-clock the service processing module locked by the locking sub-unit 11; the selecting sub-unit 13 is configured to select a service processing module from the service processing module in a normal working state as a proxy service processing. Module

The backup subunit 14 is configured to back up the service to the proxy service processing module selected by the selecting subunit 13 when the load of the currently carried service on the locked service processing module is less than a preset threshold, and Modifying the distribution information on the route distribution module 2, so that the service on the locked service processing module reaches the proxy service processing module correctly;

The threshold is pre-configured in the power consumption control rule.

The second setting subunit 15 is configured to set the service processing module locked by the locking subunit 11 to a power-off state or a sleep state.

The second control unit further includes:

a determining subunit, configured to determine whether a sum of a load of the service currently carried by the proxy service processing module and a load of the service carried by the locked service processing module is less than a maximum service load of the proxy service processing module, and if so, the locked The service carried by the service processing module is backed up to the proxy service processing module. Otherwise, a service processing module can be selected from the service processing module in the normal working state as the proxy service processing module, and then the service of the service that cannot be backed up is located. All services on the processing module are backed up to the reselected proxy service processing module.

The second control unit may further include:

The reclaiming sub-unit is configured to reclaim the service backed up to the proxy service processing module to the service processing module that has been powered off or hibernated, and modify the routing distribution module 2 when the service processing module that has been powered off or hibernated needs to work normally. The distribution information, so that the distribution information is back to the service processing module that has been powered off or hibernated; Unlocking the stator unit, after the reclaiming subunit retracts the service backed up to the proxy service processing module to the service processing module that has been powered off or hibernated, and causes the locked service processing module to carry the service originally backed up to the proxy service processing module. Then, the service processing module that has been powered off or hibernated is unlocked, so that the service processing module that has been powered off or hibernated resumes accepting new service requests.

In addition, the management control module 4 may further include:

a recording unit, configured to record the number of times that all the service processing modules 3 are controlled by power consumption;

Correspondingly, the second control unit is configured to: in the service processing module that is currently in the normal working state, when the service processing module of the difference quantity calculated by the comparing unit is set to the power consumption control state, the power consumption control priority is preferentially The least business processing module is set to the power control state.

In this way, each business processing module is almost equal in power consumption control, which can extend the life of the hardware.

The management control module 4 can separately control the running status of each service processing module in the service processing module 3.

The gateway provided in this embodiment includes a management control module 4 and a route distribution module 2, which can also be combined into one physical module in an actual application. The specific changes are obvious and will not be described here.

In the embodiment of the present invention, when the service reliability requirement is not high, the service processing module that needs to perform power consumption control may be directly powered off, dormant, or dynamically down-converted, without considering the impact on the user service after power-off or sleep. When the service reliability requirement is high, you need to consider the impact on the user service after power-off or sleep. You can first dynamically down-clock the service processing module that needs to perform power consumption control. When the load of the service processing module is less than a preset threshold, the service processing module that needs to perform power consumption control is backed up to another normal working service processing module, and then the power consumption control is required for the power processing module. The service processing module is powered off or hibernated.

The present invention can also be applied to a broadband access server of a fixed network, and is applied to a PDN device in the future LTE and SAE systems of 3GPP, and the specific working principle is the same. The beneficial effects of the embodiment of the present invention are: the management control module sets a determined number of service processing modules to a normal working state by determining the number of service processing modules that need to work normally, and sets the remaining number of service processing modules to a power consumption control state. The energy saving effect of the gateway is very significant. Under normal circumstances, the total service load of the gateway currently running in the middle of the night from 1: 00 to 7: 00 is only about 15% ~ 20% of its maximum business load. When power consumption is applied to the gateway, the power consumption can be directly saved by about 20% per day. At the same time, it can save 20% of the equipment's heat dissipation, which can save 20% energy consumption. Moreover, by backing up the service on the service processing module that needs to implement power consumption control to another normal working service processing module, the power consumption control for directly powering down or sleeping the service processing module that needs to perform power consumption control is reduced. After that, the user's business may be interrupted.

Example 2

Referring to FIG. 6, an embodiment of the present invention provides a method for saving power consumption by a packet gateway. First, determining the number of service processing modules that need to work normally, setting the determined number of service processing modules to a normal working state, and remaining number of The business processing module is set to the power control state. The method includes:

Step 101: Determine the number of business processing modules that need to work normally.

Step 102: Set the determined number of service processing modules to a normal working state according to the determined number of service processing modules that need to work normally, and set the remaining number of service processing modules to be in a power consumption control state.

The remaining number refers to the number of the plurality of service processing modules that the packet gateway has, except for the determined number of service processing modules that need to work normally.

The number of service processing modules that need to be determined to work normally includes:

You can directly determine the number of service processing modules that need to work normally by reading the preset power control rules.

The preset power consumption control rule specifies how many service processing modules need to work normally in the current time period. For example, the packet gateway has six service processing modules, and the power consumption control rule specifies 23: 00-7: 00 per day. Two business processing modules are required, so according to the power consumption control rules, At 23: 00-7: 00 every day, directly determine the number of business processing modules that need to work normally.

This method of determining the number of service processing modules that need to be functioning by reading a preset power consumption control rule may be referred to as a method of statically saving gateway consumption.

The number of service processing modules that need to be working normally is determined. Referring to FIG. 7, the method further includes: first, the maximum service load allowed to be operated by the packet gateway is recorded as MaxLoad, and the maximum service load MaxLoad matches the hardware capability of the packet gateway. . The maximum service load that each service processing module can carry is recorded as sing le-MaxLoad. The service load currently carried by each service processing module is recorded as sing le-Rea lLoad, and the actual current total service load is recorded as Rea lLoad. The total number of processing modules is recorded as Tota lNum. The number of service processing modules that need to work normally for the current service is recorded as NeedNum. The number of service processing modules currently working normally is recorded as Rea IN. This embodiment assumes that the maximum service load s ing le-MaxLoad that each service processing module can carry is the same. Generally, the maximum service load s ing le-MaxLoad that each service processing module can carry is the same.

The following is a detailed description of the method for dynamic power saving of the packet gateway. The method determines the number of service processing modules that need to work normally.

Step 201: When the packet gateway is started, the default license file is read. The default license file records the maximum service load MaxLoad that the gateway is allowed to run. By reading the default license file, the maximum service load MaxLoad allowed by the packet gateway is obtained, such as : Number of users hosted, throughput, and more. Before, after or at the same time, the service processing module of the packet gateway reports the maximum service load si ng 1 e-MaxLoad that can be carried by the packet to the management control module, and the management control module calculates all service processing. Maximum business load reported by the module

s ing le-MaxLoad sum, for the maximum business load defined by the license file MaxLoad's business is rejected.

Among them, the startup includes the initial startup and restart.

Step 202: After the packet gateway is running, the periodic timer is started, and each service processing module periodically reports the traffic load s ing le-Rea lLoad that is currently carried by the service processing module to the management control module. The interval of the periodic timer can be set to 1 minute.

Step 203: After receiving the service load sing le-Rea lLoad of the current bearer reported by each service processing module, the management control module periodically calculates the current total service load of the packet gateway, Rea lLoad _0. Step 204: The management control module obtains the maximum service according to the maximum service The load MaxLoad and the current total service load Rea lLoad calculation requires the number NedN drawing of the number of service processing modules that work normally, and the number NedN of the service processing modules that need to work normally is given as the first quantity.

RealLoad

NeedNum « .

MaxLoad

Among them, NeedNum is a function of Rea lLoad. TotalNum. The service processing module of the determined quantity is set to a normal working state, and the remaining number of service processing modules are set to a power consumption control state according to the determined number of the service processing modules that need to be working normally.

Step 205: The management control module obtains the number of service processing modules that are currently working normally, Rea lNum, and sets the number of service processing modules Rea 1N that is working normally as the second quantity.

Step 206: The management control module compares the first quantity and the second quantity, and calculates a difference between the first quantity and the second quantity, that is, calculates a difference between NeedNum and Rea lNum. If NeedNum is greater than Rea lNum, step 207 is performed, if NeedNum If it is less than Rea 1N, step 208 is performed. If NeedNum is equal to Rea lN, the process returns to step 203.

Step 207: The management control module is in a service processing module in a power control state, and the service processing module of the first quantity and the second quantity difference quantity is set to a normal working state, that is,

The (NeedNum-RealNum) number of service processing modules in the power consumption control state are set to the normal working state, and then, return to step 203.

Step 208: The management control module sets the service processing module of the first quantity and the second quantity of the difference quantity into a power consumption control state, that is, the number of ( ealNum-NeedNum) is in the service processing module that is currently in the normal working state. The service processing module in the normal working state performs power consumption control, and then returns to step 203.

Wherein, the management control module is based on the maximum service load MaxLoad obtained and the current total service The load Rea lLoad calculates the number of business processing modules that need to work properly. NeedN is allowed. The method also includes:

The preset power consumption control rule can be read to determine whether power consumption control is required in the current time period, wherein the preset power consumption control rule specifies whether current power consumption is required for the current time period, for example, during normal daytime 7 No power control is required from point 23 to 23, and power control is required from 23 to 7 in the night. The management control module can directly determine whether the current time period requires power consumption control by reading the power consumption control rules.

The service processing module that is in the normal working state, when the service processing module of the difference between the first quantity and the second quantity is set to the power consumption control state, specifically includes:

Reading a preset power consumption control rule to obtain a power consumption control type corresponding to the service processing module of the first quantity and the second quantity difference value in the current service processing module; according to the power consumption control type And setting the difference quantity of the service processing module to a corresponding power consumption control state.

The number of service processing modules that need to work normally is NeedNum, which is the first quantity, and includes:

Calculate the number of service processing modules that need to work normally according to the current total service load, NeedNum, and add the preset redundancy amount to the number of service processing modules that need to work normally; the need to add redundancy needs to work normally. The number of business processing modules is the first quantity. The number of calculated business processing modules that need to work normally NeedN allows the addition of redundancy to prevent the shortage of NeedN when burst traffic occurs.

The power control state includes a power-down state, a sleep state, and a dynamic frequency-down state, wherein the dynamic frequency-down refers to dynamically selecting an operating frequency according to a CPU load.

The power consumption control rule may be manually preset or manually modified. The power consumption control rules include: defining whether a certain time period requires power consumption control, and how much redundancy the NeedN allows, according to different The type of power control operation set by the time period.

For example, you can set Monday to Friday 8:00 am to 12:00 am and 14 pm to 18:00 pm, no Power control is required, the gateway operates normally; power control is performed from 12 o'clock to 14 o'clock, and the power control type can be set to dynamic down-conversion; power control is performed from 8 o'clock to 24 o'clock, and the power control type can be set. For sleep; power control from 24 o'clock to 8 am, set to power off, the most energy-saving effect.

In order to reduce the impact on the service of the user after powering off or sleeping the packet gateway, the service on the service processing module that needs to perform power consumption control can be backed up to another normal working service. On the processing module, therefore, referring to FIG. 8, the service processing module that is currently in the normal working state, the service module of the first quantity and the second quantity of the difference is set to the power consumption control state, and may specifically include:

Step 301: Lock the service processing module of the first quantity and the second quantity of the difference quantity in the service processing module that is currently in the normal working state.

The embodiment of the present invention uses the service processing module A as a service processing module in the service processing module of the first quantity and the second quantity difference, as an example, that is, the service processing module A is a service processing that needs to perform power consumption control. Module.

The meaning of the lock is to continue to carry the existing services, but no longer accept new services. Step 302: Dynamically down-clock the locked service processing module.

Step 303: Select a service processing module from the service processing module in a normal working state as a proxy service processing module.

In the embodiment of the present invention, the service processing module B is used as the proxy service processing module selected from the service processing module in the normal working state.

Step 304: When the load of the service carried on the locked service processing module is less than a preset threshold, start the backup of the service processing module A to the proxy service processing module B, and back up the service from the service processing module A to the proxy service. Process module B, and modify the distribution information so that the packets of the service reach the proxy service processing module correctly.

The threshold is pre-configured in the power consumption control rule.

Step 305: Set the locked service processing module to a power-off state or a sleep state. When the load of the service carried on the locked service processing module is less than a preset threshold, before the service is backed up to the proxy service processing module, the method further includes:

Determining whether the sum of the load of the service currently carried by the proxy service processing module and the load of the service carried on the locked service processing module is less than the maximum service load of the proxy service processing module, and if so, the service processing module to be locked The service is backed up to the proxy service processing module. Otherwise, a service processing module can be selected from the service processing module in the normal working state as the proxy service processing module, and then all the services on the service processing module where the service that is not backed up is located Back up to the reselected proxy service processing module.

When the power-down or dormant service processing module needs to re-enter the normal working state, the service backed up to the proxy service processing module is reclaimed to the service processing module that has been powered off or hibernated, and the distribution information is modified, so that the distribution information refers to The service processing module that has been powered off or hibernated is then unlocked, and the service processing module that has been powered off or hibernated is unlocked, so that the service processing module that has been powered off or hibernated resumes accepting new service requests.

In the embodiment of the present invention, the number of times that all the service processing modules in the packet gateway are controlled by the power consumption may be recorded, and the service processing module that is currently in the normal working state is set, and the service processing module of the difference quantity calculated by the comparing unit is set to In the power control state, the service processing module with the least number of power control times is preferentially set to the power control state.

The embodiment of the present invention assumes that the maximum service load of each service processing module is the same. Generally, the maximum service load of each service processing module is the same, but the maximum service load of the service processing module may be different due to some special circumstances. . For this situation, you can set the maximum weight of the maximum service load in each service processing module to be 1, and the maximum service load in the remaining service processing modules is proportionally weighted, for example, there are 10 service processing modules, and the third The maximum service load that can be carried on the service processing module is 100, and the weight is set to 1. The maximum service load that can be carried on the fifth service processing module is 80, the weight is set to 0. 8, and so on. , according to When calculating the number of service processing modules that need to work normally in Embodiment 2, each service processing module after weighting processing may be considered. The specific calculation method changes are obvious and will not be described here.

The invention can also be applied to a broadband access server of a fixed network, and is applied to a PDN device in the future LTE and SAE systems of 3GPP. The specific process is the same and will not be described here.

The beneficial effects of the embodiments of the present invention are: setting a determined number of service processing modules to a normal working state by determining the number of service processing modules that need to work normally, and setting the remaining number of service processing modules to a power consumption control state, so that the gateway The energy saving effect is very significant. Under normal circumstances, the total service load of the gateway currently running in the middle of the night from 1: 00 to 7: 00 is only about 15% ~ 20% of its maximum business load. When power control is applied to the packet gateway, the power consumption can be directly saved by approximately 20% per day. At the same time, it can save 20% of the equipment's heat dissipation, which can save 20% energy consumption. Moreover, by backing up the service on the service processing module that needs to implement power consumption control to another service processing module that is working normally, power consumption control for directly powering down or sleeping the service processing module that needs to perform power consumption control is reduced. After that, the user's business may be interrupted.

Embodiments of the invention may be implemented in software, and the corresponding software program may be stored in a readable storage medium, such as a hard disk, a cache, or an optical disk of a computer.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

Rights request

A packet gateway, wherein the packet gateway comprises:

a management control module, configured to determine a quantity of service processing modules that need to work normally in the multiple service processing modules of the packet gateway, set the determined number of service processing modules to a normal working state, and set the remaining number of service processing modules The power consumption control state is used to reduce the power consumption. The multiple service processing modules are configured to process the uplink and downlink signaling of the terminal user and process and forward the data packet of the terminal user packet service.

The packet gateway according to claim 1, wherein the management control module further comprises:

The determining unit is configured to read a preset power consumption control rule, and determine whether the power consumption control is required for the current predetermined time period.

3. The packet gateway according to claim 1, wherein the management control module comprises:

a determining unit, configured to read a preset power consumption control rule, and determine, according to the power consumption control rule, a quantity of service processing modules that need to work normally in the multiple service processing modules of the packet gateway; The determining unit determines the number of service processing modules that need to work normally, sets the determined number of service processing modules to a normal working state, and sets the remaining number of service processing modules to a power consumption control state for reducing power consumption.

4. The packet gateway according to claim 1, wherein the management control module comprises:

a first calculating unit, configured to calculate a current total service load;

a second calculating unit, configured to calculate, according to the current total service load calculated by the first calculating unit and the maximum service load that the gateway is allowed to run, calculate the number of service processing modules that need to work normally, and process the service that needs to work normally The number of modules as the first quantity;

An obtaining unit, configured to obtain the number of service processing modules that are currently working normally, and use the number of the service processing modules that are currently working normally as the second quantity; a comparing unit, configured to compare the first quantity and the second quantity, and calculate a difference between the first quantity and the second quantity;

a first control unit, configured to: when the first quantity is greater than the second quantity, the service processing module that is currently in the power consumption control state, and the service processing module that is calculated by the comparison unit is set to work normally State

a second control unit, configured to: when the first quantity is less than the second quantity, the service processing module that is currently in a normal working state, the service processing module of the difference quantity calculated by the comparing unit is set to be used for lowering Power consumption control state of power consumption.

The packet gateway according to claim 4, wherein the second control unit comprises:

a reading subunit, configured to: when the first quantity is less than the second quantity, read a preset power consumption control rule, and obtain a service processing module that is currently in a normal working state, and the difference quantity service processing module Corresponding power control type;

a first setting subunit, configured to set, according to a power consumption control type obtained by the reading subunit, a service processing module that is currently in a normal working state, and set the service processing module of the difference quantity to a corresponding power consumption control status.

The packet gateway according to claim 4, wherein the second computing unit comprises:

a redundancy calculation sub-unit, configured to calculate the number of service processing modules that need to work normally after calculating the current total service load calculated according to the first calculation unit and the maximum service load allowed by the gateway, and then work normally The number of service processing modules plus the preset amount of redundancy, and the number of redundant service processing modules that need to work properly is taken as the first quantity.

The packet gateway according to claim 4 or 6, wherein the second control unit specifically includes:

a locking subunit, configured to: when the first quantity is less than the second quantity, the service processing module that is currently in a normal working state, and the comparison unit calculates the difference quantity of the service processing module When the power consumption control state is set, the service processing module of the difference quantity is locked; the frequency reduction subunit is configured to dynamically down-clock the service processing module locked by the locking subunit; and the subunit is selected for Selecting a service processing module as a proxy service processing module in a service processing module in a normal working state;

a backup subunit, configured to back up the service to a proxy service processing module selected by the selecting subunit when a load d of a service currently carried on the locked service processing module is at a preset threshold Up, and modifying the distribution information on the route distribution module, where the route distribution module is configured to receive and distribute the message outside the packet gateway;

And a second setting subunit, configured to set the locked service processing module to a power-off state or a sleep state.

The grouping gateway according to claim 3 or 4, wherein the management control module further comprises:

Correspondingly, when the service processing module is set to the power consumption control state, the service processing module with the least number of power control times is preferentially set to the power consumption control state.

A method for saving power consumption by a packet gateway, the method comprising: determining a quantity of a service processing module that needs to work normally in a plurality of service processing modules of a packet gateway;

The service processing module set to the normal working state processes the uplink and downlink signaling of the terminal user and processes and forwards the data packet of the terminal user packet service.

The method for saving power consumption of the packet gateway according to claim 9, wherein before determining the number of service processing modules that need to work normally in the plurality of service processing modules of the packet gateway, the method further includes:

Read the preset power control rules to determine whether the current preset time period requires power control.

The method for saving power consumption of the packet gateway according to claim 9, wherein the number of service processing modules that need to work normally in the plurality of service processing modules of the packet gateway is determined, which specifically includes:

The preset power consumption control rule is read, and the number of service processing modules that need to work normally in the multiple service processing modules of the packet gateway is determined according to the power consumption control rule.

The method for saving power consumption of the packet gateway according to claim 9, wherein the number of service processing modules that need to work normally in the plurality of service processing modules of the determining packet gateway includes:

And calculating, according to the current total service load and the maximum service load that the gateway is allowed to run, the number of service processing modules that need to work normally, and determining the number of the service processing modules that need to work normally as the first quantity;

And setting the determined number of service processing modules to a normal working state, and setting the remaining number of service processing modules to a power consumption control state for reducing power consumption, specifically:

The number of business processing modules currently working normally is taken as the second quantity;

When the first quantity is greater than the second quantity, the service processing module that is currently in the power consumption control state, the service processing module of the first quantity and the second quantity difference quantity is set to a normal working state;

When the first quantity is less than the second quantity, the service processing module that is currently in the normal working state is set to the power consumption control state by the first quantity and the second quantity difference value.

The method for saving power consumption of the packet gateway according to claim 12, wherein, in the service processing module that is currently in a normal working state, the first quantity and the second quantity of the difference quantity are The service processing module is set to a power control state, and specifically includes:

Reading a preset power consumption control rule, and obtaining a power consumption control type corresponding to the service processing module of the first quantity and the second quantity difference value in the service processing module that is currently in a normal working state; And according to the power control type, setting the difference quantity of the service processing module to a corresponding power consumption control state.

The method for saving power consumption of the packet gateway according to claim 12, wherein the calculating the first quantity comprises:

Calculating, according to the current total service load and the maximum service load allowed by the gateway, the number of service processing modules that need to work normally, and adding a preset redundancy amount to the number of service processing modules that need to work normally;

The number of redundant service processing modules that need to work normally is taken as the first quantity.

The method for saving power consumption of a packet gateway according to claim 12 or 14, wherein the number of the difference between the first quantity and the second quantity in the service processing module that is currently in a normal working state The service processing module is set to a power control state, and specifically includes:

Locking the first number and the second number of difference number of service processing modules;

Dynamically down-clocking the locked service processing module;

Selecting a service processing module from the service processing module in a normal working state as a proxy service processing module, and when the load of the service carried on the locked service processing module is less than a preset threshold, the service is backed up. Go to the proxy service processing module and modify the distribution information;

The locked service processing module is set to a power-off state or a sleep state.

The method for saving power consumption of a packet gateway according to claim 9, wherein the remaining number of service processing modules are set to a power consumption control state for reducing power consumption, specifically comprising: recording all service processing modules by The number of power control times, in the remaining number of service processing modules that need to be set to the power consumption control state, the service processing module that is least controlled by the power consumption is preferentially set to the power consumption control state.