WO2014082494A1

WO2014082494A1 - Network monitoring and energy saving control method and system, terminal and packet data network gateway

Info

Publication number: WO2014082494A1
Application number: PCT/CN2013/084334
Authority: WO
Inventors: 陈真清; 殷卫海; 陈磊
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-11-27
Filing date: 2013-09-26
Publication date: 2014-06-05
Also published as: CN103841590A; CN103841590B

Abstract

A network monitoring and energy saving control method and system, a terminal and a packet data network gateway. The network monitoring method comprises: a terminal selecting WLAN access according to a WLAN SSID priority list sent by a PGW accessing the 3GPP network; and after the terminal accesses the WLAN, reporting location information about the WLAN to the PGW, wherein the location information about the WLAN comprises SSID and AP information.

Description

Network monitoring and energy saving control method and system, terminal and packet data network gateway

Technical field

Embodiments of the present invention relate to the field of communications technologies, and in particular, to a network monitoring and energy saving control method.

Background technique

With the promotion of smartphones and the explosive development of mobile Internet services, the surge in data traffic of mobile users has had a huge impact on the 2nd/3rd generation (2/3G) mobile networks. The Wireless Local Area Network (WLAN) is favored by operators because of its relatively high bandwidth, simple installation, and relatively low cost. Various operators have considered splitting the 3rd Generation Partnership Project (3GPP) network data by deploying WLAN hotspots in the data hotspot.

WLAN alleviates the pressure of 3GPP network services in dense areas, but it also has its own disadvantages. The coverage of hotspots is small, and a large number of hotspots need to be laid. Moreover, the service traffic of the network is closely related to the range and time of the user's activities, and has a certain time and space non-uniformity. As a result, a large number of access points (APs) are still in a normal working state even during idle periods, resulting in considerable energy consumption, which inevitably increases the operator's operating costs and maintenance costs. Currently, the WLAN that is set up is independent of the 3GPP network. User services often exist in a single network, and the network is not allowed to be interrupted or shut down.

Summary of the invention

Embodiments of the present invention provide a network monitoring and energy saving control method and system, a terminal, and a packet access gateway, which can implement traffic monitoring of a WLAN and a 3GPP network of a terminal, thereby implementing energy-saving traffic distribution between the WLAN and the 3GPP network.

An embodiment of the present invention provides a network monitoring method, including: a Service Set Identifier (SSID) of a delivered wireless local area network (WLAN) Priority list, select WLAN access; and

After the terminal accesses the WLAN, the WLAN location information is sent to the PGW, where the WLAN location information includes an SSID and an Access Point (AP) information.

The above method may further include:

When the WLAN accessed by the terminal is changed, the terminal sends a WLAN change message to the PGW, notifying the PGW that the terminal WLAN signal is interrupted, switching from the WLAN to the 3GPP network, recovering the WLAN signal, or performing WLAN handover.

Optionally, the sending, by the terminal, the WLAN change message to the PGW, includes: when the terminal finds that the WLAN signal is interrupted, reporting the WLAN loss event to the PGW by using the added protocol stack signaling, and the WLAN before the loss location information;

When the terminal WLAN network is restored, the WLAN recovery event and the restored WLAN location information are reported to the PGW by using the added protocol stack signaling;

When the WLAN handover occurs, the WLAN handover event is reported to the PGW and the WLAN location information before and after the handover is reported by the added protocol stack signaling.

Optionally,

The added protocol stack signaling includes: Resource Reservation Protocol (RSVP), Point to Point Protocol (PPP), Session Initiation Protocol (SIP), or remote authentication dial-up user service. (Remote Authentication Dial In User Service, RADIUS) protocol.

The embodiment of the invention further provides a network monitoring method, including:

The packet data network gateway (PGW) carries the WLAN location information reported by the terminal when accessing the WLAN when the service traffic information of the wireless local area network (WLAN) of the terminal is transmitted to the network management system, where the WLAN location information includes Service Set Identifier (SSID) and Access Point (AP) information.

The above method may further include:

When receiving the WLAN change message sent by the terminal, the PGW adjusts the service traffic reporting manner of the terminal; The adjusting, by the PGW, the service traffic reporting manner of the terminal includes: if the WLAN service of the terminal is switched to a 3rd Generation Partnership Project (3GPP) network, the PGW reports to the network management system The 3GPP network location information of the terminal; if the WLAN service of the terminal is interrupted, the PGW stops the WLAN service traffic information and

If the WLAN of the terminal is restored or the WLAN is switched, the PGW carries the new WLAN location information reported by the terminal when the service traffic information of the WLAN of the terminal on the network management system is used.

The above method may further include:

In the process of accessing the 3GPP network, the PGW is from a home location register (Home

The location register, the HLR, obtains the SSID priority list in the user subscription information of the terminal, and updates the SSID priority list according to the network congestion obtained from the network management system, and then preferentially updates the updated SSID. The level list is sent to the terminal.

Optionally,

The PGW acquires, from the HLR, the SSID priority list in the user subscription information of the terminal, including:

In the 3GPP attach or WLAN authentication process of the terminal, the supporting gateway obtains the SSID priority list included in the user subscription information from the HLR; when the supporting gateway establishes a tunnel with the PGW, the SSID priority is a list is brought to the PGW;

The PGW passes authentication, authorization, and accounting (Authentication, during activation).

Authorization and Accounting, AAA) The server obtains the SSID priority list included in the user subscription information from the HLR.

Optionally,

Sending, by the PGW, the SSID priority list to the terminal, including:

The PGW sends the SSID priority list to the terminal through a Point of Control and Observation (PCO) field in the access response message in the 3GPP access process of the terminal; or After the 3GPP access or WLAN access of the terminal is completed, the PGW sends the SSID priority list to the terminal from the user plane through the added protocol stack signaling.

Optionally, the added protocol stack signaling includes: a resource reservation protocol (RSVP), a point-to-point protocol (PPP), a session initiation protocol (SIP), or a remote authentication dial-up user service (RADIUS) protocol.

Optionally, the added protocol stack signaling is located on the PGW side on a General Packet Radio Service (GPRS) Tunneling Protocol (GTP) specified by the 3GPP or an Internet Engineering Task Force. , IETF ) on the Mobile Internet Protocol ( ΜΙΡ ).

The embodiment of the invention further provides a network energy saving control method, including:

The network management system collects the service traffic information of the terminal to the WLAN corresponding to the WLAN location information according to the wireless local area network (WLAN) location information of the terminal carried by the packet data network gateway (PGW) when reporting the service traffic of the terminal Access controller (AC) or access point (AP);

The network management system monitors a cell load of a 3rd Generation Partnership Project (3GPP) network and a load of each WLAN AP according to the statistical traffic flow;

When the network management system determines that the AP meets the energy saving control condition, after performing network migration processing on the online user of the AP, the AP is controlled to enter the dormant state or reduce the transmit power.

Optionally,

The controlling, by the network management system, the AP to enter the dormant or reduce the transmit power includes: the network management system, by sending an energy-saving control message to the AP or the control unit of the AP, to control the AP to enter sleep or reduce the transmit power.

The above method may further include:

When the network management system determines that the AP meets the condition for releasing the energy saving control, the AP is controlled to cancel the sleep or increase the transmission power.

Optionally,

The controlling, by the network management system, the AP to cancel sleep or increase transmit power includes: The network management system sends a de-energization control message to the control unit of the AP or the AP, and indicates that the AP releases sleep or increases transmit power by using the recovery level information in the de-energized control message.

Optionally,

The network management system determines that the AP meets the energy saving control condition, and includes:

The network management system detects that the network service traffic of the AP is smaller than the first energy saving threshold in the first sampling time period, and determines that the network service traffic of the neighboring AP of the AP is in the first Whether the time period is less than the second energy saving threshold, and whether the 3GPP network service traffic covering the AP is lower than the third energy saving threshold, and if yes, determining that the AP meets the energy saving control condition; if not, determining The AP does not satisfy the energy saving control condition.

Optionally,

The network management system determines that the AP meets the conditions for releasing the energy saving control, and includes:

The network management system determines whether the network service traffic of the neighboring AP of the AP is greater than the first wake-up threshold in the first sampling time period.

If the first wake-up threshold is greater than or equal to, the AP is determined to meet the de-energy-saving control condition, and the recovery level information is the recovery level 2;

If it is less than the second wake-up threshold, if it is greater than the second wake-up threshold, it is determined whether the network traffic of the neighboring AP is greater than the second wake-up threshold in the first sampling time period. And determining that the AP meets the de-energization control condition, and the recovery level information is the recovery level one; if not greater than or equal to the second wake-up threshold, determining whether the 3GPP network service traffic covering the AP is greater than the third wake-up a value, if it is greater than or equal to the third wake-up threshold, determining that the AP meets the energy-saving control condition, and the recovery level information is a recovery level one; if not greater than or equal to the third wake-up threshold, determining the AP The energy saving control condition is not satisfied.

The embodiment of the invention further provides a terminal, including:

a Service Set Identifier (SSID) receiving module configured to: receive a SSID priority list of a wireless local area network (WLAN) delivered by a Packet Data Network Gateway (PGW) of a Third Generation Partnership Project (3GPP) network; The location information reporting module is configured to: report the WLAN location information to the PGW after accessing the WLAN according to the received SSID priority list, where the WLAN location information includes an SSID and an access point (AP) information.

Optionally,

The SSID receiving module is configured to receive the PGW of the 3GPP network in the following manner.

WLAN SSID priority list:

The PGW is configured to obtain the SSID priority list of the WLAN from the access response message when the access response message carries the SSID of the WLAN. When the PGW is found to send the SSID from the added protocol stack signaling, the added protocol is added. The SSID priority list of the WLAN is obtained in the stack signaling.

Optionally,

The location information reporting module is further configured to: when it is found that the WLAN accessed by the terminal changes, send a WLAN change message to the PGW;

The location information reporting module is configured to send a WLAN change message to the PGW in the following manner:

When the WLAN signal is found to be lost, the PGW is reported to the PGW through the added protocol stack signaling.

WLAN loss event, and WLAN location information before loss;

When the WLAN signal is recovered, the WLAN recovery event and the restored WLAN location information are reported to the PGW by using the added protocol stack signaling;

When the WLAN handover is found, the WLAN handover event is reported to the PGW through the added protocol stack signaling, and the WLAN location information before and after the handover.

The embodiment of the present invention further provides a packet data network gateway for network monitoring, comprising: a service set identifier (SSID) delivery module, configured to: deliver a SSID priority list of a wireless local area network (WLAN) to the terminal;

The terminal traffic reporting module is configured to: receive WLAN location information that is reported when the terminal accesses the WLAN, where the WLAN location information includes an SSID and an access point (AP) information; when the terminal initiates uplink and downlink data services, And reporting the service traffic of the WLAN of the terminal to the network management system, and carrying the WLAN location information of the terminal on the terminal. Optionally,

The terminal traffic reporting module is further configured to: adjust the service traffic of the terminal according to the received WLAN change message sent by the terminal;

The terminal traffic on the module is configured to adjust the service traffic of the terminal in the following manner:

And if the WLAN service of the terminal is switched to the 3GPP network, reporting the 3GPP network location information of the terminal to the network management system;

If the WLAN service of the terminal is interrupted, the reporting of the WLAN service traffic information is stopped;

If the WLAN of the terminal is restored or the WLAN is switched, the WLAN location information reported by the terminal is carried when the service information of the WLAN of the terminal is reported to the network management system.

Optionally,

The SSID sending module is configured to send a WLAN SSID priority list to the terminal in the following manner:

And sending the SSID priority list to the terminal by using a Control Observing Point (PCO) field in the access response message in the 3GPP access process of the terminal; or

After the 3GPP access or the WLAN access of the terminal is completed, the SSID priority list is sent from the user plane to the terminal by using an added protocol stack signaling message.

The embodiment of the invention further provides a network energy-saving control system, comprising a network monitoring module in the network management system, and an energy-saving control module, wherein:

The network monitoring module is configured to: collect service traffic information of the terminal to the WLAN location according to the wireless local area network (WLAN) location information of the terminal carried by the packet data network gateway (PGW) when reporting the service traffic of the terminal The access controller (AC) or the access point (AP) of the WLAN corresponding to the information; and monitoring the cell load of the 3rd Generation Partnership Project (3GPP) network and the load of each AP of the WLAN according to the statistical service traffic; The WLAN location information includes a service set identifier (SSID) and AP information;

The energy saving control module is configured to: when determining that the AP meets an energy saving control condition, After the online user of the AP performs network migration processing, the AP is controlled to enter sleep or reduce the transmission power.

Optionally,

The energy-saving control module is further configured to: when determining that the AP meets the condition for releasing the energy-saving control, control the AP to cancel the sleep or increase the transmission power.

Optionally,

The energy saving control module is configured to determine that the AP meets the energy saving control condition as follows:

The network monitoring module detects that the network service traffic of the AP is smaller than the first energy saving threshold in the first sampling time period, and determines that the network service traffic of the neighboring AP of the AP is in the first Whether the time period is less than the second energy saving threshold, and whether the 3GPP network service traffic covering the AP is lower than the third energy saving threshold, and if yes, determining that the AP meets the energy saving control condition; if not, determining The AP does not satisfy the energy saving control condition.

Optionally,

The energy saving control module is configured to determine that the AP satisfies the energy saving control condition as follows:

Determining whether the network service traffic of the neighboring AP of the AP is greater than the first wake-up threshold in the first sampling time period,

If it is less than the second wake-up threshold, if it is greater than the second wake-up threshold, it is determined whether the network traffic of the neighboring AP is greater than the second wake-up threshold in the first sampling time period. And determining that the AP meets the de-energization control condition, and the recovery level information is the recovery level one; if not greater than or equal to the second wake-up threshold, determining whether the service traffic of the 3GPP network covering the local AP is greater than the third wake-up a threshold value, if it is greater than or equal to the third wake-up threshold, determining that the AP meets the energy-saving control condition, and the recovery level information is a recovery level one; if not greater than or equal to the third wake-up threshold, determining the The AP does not satisfy the release energy saving control condition. With the technical solution of the embodiment of the present invention, traffic monitoring of the WLAN and the 3GPP network of the terminal can be implemented, and energy-saving split between the WLAN and the 3GPP network can be implemented. BRIEF abstract

1 is a schematic diagram of application of an energy saving control system in the related art;

2 is a flowchart of controlling a power saving of an AP by a network management system according to an embodiment of the present invention;

3 is a flowchart of controlling a wakeup of an AP by a network management system according to an embodiment of the present invention;

4 is a flowchart of determining whether a power saving control condition is met according to an embodiment of the present invention;

FIG. 5 is a flowchart of an energy saving migration process according to an embodiment of the present invention;

FIG. 6 is a flowchart of determining whether a control condition for canceling energy saving is satisfied according to an embodiment of the present invention; FIG. 7 is a flowchart of acquiring an SSID delivered by a PGW when a terminal initially enters the network from 3GPP according to an embodiment of the present invention;

FIG. 8 is a flowchart of a terminal accessing from a 3GPP and then accessing a network from a WLAN according to an embodiment of the present invention; FIG. 9 is a flow chart of switching a service when a terminal is about to leave a WLAN coverage area according to an embodiment of the present invention;

10 is a flow chart of switching services when a terminal re-enters a WLAN coverage area according to an embodiment of the present invention;

FIG. 11 is a flowchart of monitoring when a terminal performs cell handover in a WLAN coverage area according to an embodiment of the present invention;

12 is a schematic diagram of a protocol stack for transmitting a notification/confirmation message according to an embodiment of the present invention;

13 is a schematic block diagram showing the composition of a network monitoring terminal according to an embodiment of the present invention;

14 is a schematic block diagram showing the composition of a packet data network gateway according to an embodiment of the present invention; and FIG. 15 is a schematic block diagram showing the composition of an energy saving control system according to an embodiment of the present invention. Preferred embodiment of the embodiments of the present invention

However, with the gradual convergence of 3G networks and WLAN networks, user services can seamlessly and seamlessly switch between the two networks, that is, users will not perceive network changes, so idle idle The network can effectively reduce energy consumption.

The network laying in the related art is as shown in FIG. 1 , wherein the base station cell coverage of the 3G network is large, and the wireless signal coverage of a wireless AP is relatively small, and usually the WLAN is configured to cover one or more wireless areas in order to cover the hot spot area. AC and AP. Therefore, the network monitoring module in the network management system can be used to simultaneously monitor the traffic information and congestion information of the 3GPP network and the WLAN (including the network load information under each AC and AP), and the network management system (also referred to as the network management system) according to the two networks. Commonly covering the cell payload information, the AP can reduce power consumption by reducing the AP's transmit power or the dormant load when the data service is low. By waking up the AP in time or increasing the AP's transmit power during the peak period of the data service, it can effectively help 3GPP. Network offloading.

For example, in the early hours of the morning, user activity is reduced, or network services are no longer used, or concentrated in buildings near hotspot APs. The network monitoring module senses that the current cell network load is light, and the network management notifies the AP controller to sleep or reduce the transmit power of the AP at the hot spot to achieve energy saving control, wherein the AP controller refers to a controller that can adjust the AP power or the dormant AP. It can be AC or AP itself; With the arrival of the morning rush hour, the number of active users near the hotspot gradually increases, the network monitoring module detects that the 3G network user load increases, and the network management notifies the AP controller to wake up or increase the AP of the hot spot peripheral. Transmit power to achieve network congestion control.

In response to the above requirements, the present embodiment provides a WLAN network energy saving control method.

In the method, the network management system is based on the load of the AP to be monitored in the WLAN and the adjacent AP payload, and the 3GPP network with the coverage (specifically, the main network mainly operated by the local operator and supplemented by the WLAN, such as 2G/ The cell load of the 3G/4G/CDMA (Code Division Multiple Access)/WiMAX (Worldwide Interoperability for Microwave Access) network determines whether the AP satisfies the energy saving control condition. After the network management system initiates the network migration process for the online user of the AP, the network management system sends an energy-saving control message to the AP to sleep the AP or reduce the power consumption of the AP. For the AP that meets the energy-saving control condition, the network management is performed. The system sends a release energy saving control message to the AP to wake up the AP.

In addition, the embodiment further provides a method for selecting a network and monitoring a WLAN, where the method is used for acquiring the location of the WLAN cell where the user equipment (UE) is located in the PGW, and acquiring the user from the user subscription information by the PGW. The signed SSID is sent to the terminal to access the appropriate WLAN; when the WLAN of the terminal is changed, the WLAN location information is reported to the PGW in time, and is forwarded by the PGW to the network management system for the network monitoring module to monitor and adjust the WLAN load information, and adjust the AP to save energy.

The WLAN of the terminal is changed, including: the terminal accesses the WLAN, the WLAN signal is reduced or increased to a certain threshold, the data packet loss rate of the WLAN is increased or decreased to a certain threshold, and the AP identity of the terminal is monitored. The change, the monitoring of the extended service set identifier/the basic service set Identifier (ESSID/BSSID) of the terminal access changes, the network identifier SSID actually accessed by the user, and the user AP ID actually accessed.

The above methods include the following:

1 . When the user accesses, the PGW obtains the SSID priority list of the user subscription from the contracting place, and the updated SSID priority list is sent to the user according to the network congestion status obtained from the network management, and the user accesses the PGW and feeds back the user. Incoming WLAN location identifier (eg, SSID/ESSID/BSSID, or AP's Media Access Control (MAC) address, etc.). When the PGW/HA (Home Agent) reports the traffic information of the WLAN side of the user to the monitoring module, it carries the location identifier, and the monitoring module records the location identifier in the WLAN monitoring cell corresponding to the location identifier.

2, when the user detects the WLAN loss (for example, the user moves out of the WLAN coverage, and the WLAN congestion packet loss, etc.), sends a bearer loss message to the PGW, carrying the WLAN location identifier (eg, SSID/ESSID/BSSID, and the MAC address of the AP) Wait). When the PGW reports the corresponding service traffic, the location identifier is no longer carried.

3. When the user detects that the WLAN is available for recovery (for example, the user moves into the WLAN coverage again, and the WLAN congestion loss recovery, etc.), the user sends a bearer recovery message to the PGW, carrying the WLAN location identifier (eg, SSID/ESSID/BSSID, and AP). Other logos). The PGW carries a new location identifier when reporting corresponding traffic.

4. After the user roams in different AP cells of the WLAN, the user sends an update message to the PGW/HA, and carries a new WLAN cell location identifier (eg, SSID/ESSID/BSSID, and the MAC address of the AP, etc.). The PGW carries the new WLAN cell location identifier when reporting the corresponding service traffic. The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

Embodiment 1

This embodiment provides a method for a network management system to control an AP to implement energy saving control. The network monitoring module in the network management system monitors the state of the WLAN and the 3GPP network. When the AP meets the energy-saving control condition, the network monitoring module triggers energy-saving control of the AP. The NMS first migrates the network service of the active users of the current AP. After the processing succeeds, the NMS sends an energy-saving control message to the AP to control the AP to enter the sleep state or reduce the transmit power. When the dormant AP meets the conditions for releasing the energy-saving control, the monitoring module in the network management system sends a cancellation energy-saving control message to the AP, and the AP returns to the normal working state.

FIG. 2 is a flowchart of a network management system controlling an AP to implement energy saving control according to an embodiment of the present invention. As shown in Figure 2, the steps of energy saving control are described as follows:

Step 201: The network monitoring module sends an energy-saving control indication message to the network management system when an AP under the WLAN meets the energy-saving control condition.

Step 202: The network management system performs migration processing on the online user and the network service of the AP. Step 203: If the network management system successfully processes the user in the AP in step 202, send an energy-saving control message to the AP.

Step 204: After receiving the energy saving control message, the AP enters a power saving state, including sleeping the radio frequency unit or reducing the transmitting power of the radio unit, and lowering other high power consumption units, and returning the energy saving control response message to the network management system.

FIG. 3 is a schematic flowchart of the network management system of the embodiment controlling the AP to cancel the energy saving. As shown in FIG. 3, the steps of releasing the energy saving control of this embodiment are described as follows:

Step 301: The network monitoring module detects that the sleepy AP under the WLAN meets the energy-saving control condition, and sends a cancel energy-saving control indication message to the network management system.

Step 302: The network management system determines to release the AP energy saving control level, and sets a recovery level. Step 303: The network management system sends a cancellation energy saving control message to the AP.

Step 304: After receiving the energy saving control message, the AP returns to the working state according to the recovery level, and returns a cancellation energy saving control response message to the network management system. The AP handles different recovery levels differently. The first level indicates that the sleep radio radio unit is awakened, and the second level indicates that the transmit power is increased.

The de-energizing control condition described in the step 301 includes: the network monitoring module determines the network service traffic of the AP adjacent to the AP, and the 3G network service traffic covering the WLAN.

As shown in FIG. 4, FIG. 4 is a flowchart of determining whether a power-saving control condition is met according to an embodiment of the present invention, where the process includes the following steps:

Step 401: The network monitoring module detects that the network service traffic of the AP is less than the set energy saving threshold E1 in the sampling time period T1, and triggers the energy saving judgment on the AP.

Step 402: The network monitoring module determines whether the network service traffic of the AP adjacent to the physical location of the AP is always smaller than the energy saving threshold E2 in the sampling time period T1; if it is lower than the energy saving threshold E2, the process proceeds to step 403, if not lower than If the energy saving threshold E2 is used, the AP does not meet the energy saving control condition and jumps out.

Step 403: The network monitoring module further determines whether the 3GPP network covering the local AP is busy, that is, whether the 3GPP network service traffic is lower than the energy saving threshold E3; if the energy saving threshold E3 is lower than the energy saving threshold E3, the AP is considered to be in the energy saving control condition; Not lower than the energy saving threshold E3, the AP does not meet the energy saving control condition, and the process ends.

In addition, a migration processing procedure is also proposed in the embodiment of the present invention. The network management system sends a migration request message to the PGW to migrate the user service under the AP to the 3GPP network or other APs. If the PGW migrates all users successfully, the AP is hibernated. If it is unsuccessful, the AP is not hibernated.

As shown in Figure 5, the steps of the migration process are described as follows:

Step 501: The network management system sends a user migration message to the PGW, where the message carries the migrated user identifier.

Step 502: The PGW sends a migration request to the UE according to the user identifier carried in the migrating message in step 501.

Step 503a: After receiving the PGW to send the migration request, the UE finds that the 3GPP network is available, switches the user service to the available network, and proceeds to step 504. If the UE does not find the available network, the UE jumps to step 503b.

Step 503b: The UE initiates an activation request to the 3GPP network, and if the activation succeeds, the user is switched. The service goes to the 3GPP network and jumps to step 504. If the activation is not successful, then the process proceeds to step 503c. Step 503c: Detect whether the other APs in the same WLAN can be accessed. If an AP is available, the handover process is initiated on the other AP. If the handover succeeds, the migration succeeds. If the handover fails, the migration fails.

Step 504: The UE returns a migration response to the PGW according to the user service migration result.

Step 505: The PGW responds to the statistical migration process according to the UE, and if all users reply or the specified time expires, the migration process is considered to be ended.

Step 506: If all the users to be migrated reply to the migration success, the PGW returns a migration success message to the network management system, and if not, returns a migration failure message.

FIG. 6 is a flowchart of determining whether a power saving control condition is met according to an embodiment of the present invention, where the power saving control condition includes a network monitoring module determining a network service traffic of an AP adjacent to the AP, and a 3G network covering the WLAN. Business traffic.

As shown in FIG. 6, the process of determining whether the energy-saving control condition is met includes the following steps: Step 601: The network monitoring module determines whether the network service traffic of the AP adjacent to the AP physical location is greater than the wake-up threshold N1 in the sampling time period T1. If it is greater than the wake-up threshold N1, the AP meets the recovery level 2, and restores the power of the AP according to the recovery level 2. If it is not greater than the wake-up threshold N1, the next step is judged.

Step 602: The network monitoring module determines whether the network service traffic of the AP adjacent to the physical location of the AP is greater than the wake-up threshold N2 (N2<N1) in the sampling period T1; if the threshold is greater than the wake-up threshold N2, the AP meets the recovery level 1 Restore the power of the AP according to the recovery level 1. If it is not greater than the wake-up threshold N2, proceed to the next step.

Step 603: The network monitoring module determines whether the 3GPP network that covers the AP is busy, that is, whether the 3GPP network service traffic is greater than the wake-up threshold N3; if it is greater than the wake-up threshold N3, the AP is considered to meet the recovery level 1; if not greater than the wake-up If the value is N3, the AP does not satisfy the recovery condition and the process ends.

Embodiment 2

In the embodiment of the present invention, the UE obtains the SSID delivered by the PGW when the UE initially accesses the network from the 3GPP. Flow chart. When the UE accesses the 3GPP network, the SSID priority list is obtained when the WLAN accesses (the current congestion state is obtained from the network management system before the 3GPP network sends the SSID priority list), when entering the WLAN signal coverage area, Comprehensively utilize the issued SSID priority list, the locally stored SSID priority list, and the surrounding SSIDs that are found, and select the most appropriate SSID access according to a certain policy. As shown in Figure 7, the following steps are included:

Step 701: After the UE is powered on, it is found that a 3GPP signal exists around the UE, and the base station sends an attach request to the GPRS Service Support Node (SGSN).

Step 702: The SGSN/MME obtains the user subscription information from the home subscriber server (HLR/HSS), and performs authentication and authentication on the terminal by comparing the key carried in the attached message.

Step 703: After receiving the attach response, the UE initiates an activation request to the SGSN/MME (Mobile Management Entity).

Step 703b: After receiving the activation request, the SGSN/MME initiates a session creation request to the PGW. Step 703: The PGW allocates an IP address to the terminal according to the information carried in the request message, and creates a GTP tunnel for the user. The policy and the Charging Rules Function (PCRF) are used to obtain the uplink and downlink routing policies, that is, the service flow. Template (Traffic Flow Template, TFT).

Step 703d: After the tunnel is created, the PGW replies to the SGSN/MME to create a session successfully. Step 703e: The SGSN/MME replies to the UE that the activation is successful.

The PGW obtains the SSID priority list that the user subscribes to from the HSS/HLR. The obtaining mode may be the user subscription information acquired by the SGSN during authentication, and is brought to the PGW when the user tunnel request is created, or the PGW passes the user tunnel when creating the user tunnel. The AAA server obtains the WLAN information from the HSS/HLR, and the PGW obtains the WLAN information from the monitoring module, and updates the SSID priority list according to current network congestion information, subscription information, and other factors.

Step 705: The PGW sends a signaling notification message to the UE from the created tunnel, where the SSID priority list is included.

Step 706: After receiving the notification request message, the UE loads the routing policy delivered by the network, and saves SSID priority list and other information.

Step 707: The UE returns a confirmation message to the PGW.

Step 708: The UE initiates a service data service. The uplink and downlink data flows will be transmitted from the corresponding network according to the latest uplink and downlink routing policies acquired by the PGW and the actual access network conditions. The PGW reports user traffic information to the network monitoring module. At this time, the data service is accessed from the 3G network to the Public Data Network (PDN), so the reported traffic information includes the user's 3G network location information (cell information, location area information, etc.). The network monitoring module collects the corresponding traffic information into the corresponding cell of the 3G network, and is used to determine the congestion status and traffic load of the cell, and monitor the activity status of the user.

Embodiment 3

FIG. 8 is a flowchart of accessing a network from a WLAN after the UE accesses the network from the 3GPP according to an embodiment of the present invention. The UE selects the appropriate SSID to access the WLAN according to the SSID obtained by the 3GPP access and the SSID obtained by other methods, and updates the routing policy of the uplink and downlink data services. As shown in Figure 8, the following steps are included:

Step 801: After the UE accesses the 3GPP, the UE has obtained the signed SSID priority list. After discovering that the WLAN signal is available, the UE initiates WLAN access to the AP.

Step 802: If the UE finds that the AP allows access, the UE will initiate an Extensible Authentication Protocol (EAP) authentication process for accessing the WLAN, and use the Universal Subscriber Identity Module (USIM) card as a credential. EAP-SIM/AKA (Authentication and Key Agreement) authentication method.

Step 803a: After the EAP authentication is completed (at the end of the security authentication), the UE initiates a secure tunnel establishment request to the Evolved Packet Data Gateway (ePDG), and the PDG/AC security tunnel is obtained from the AAA server during the establishment process. To the user's subscription information, the user's SSID priority list can be requested again.

Step 803b: After receiving the session request initiated by the ePDG or the WLAN gateway (for example, the AC), the PGW multiplexes the same IP address applied by the 3G network, and establishes a tunnel from the ePDG or the AP to the PGW. Road.

Step 803c: The PGW obtains the latest uplink and downlink routing policy TFT from the PCRF, and updates the routing policy.

Step 803d: After the PGW creates a session request, the PGW replies to the ePDG/AC to create a session success response.

Step 803e: The ePDG/AC replies to the UE that the security tunnel is established, and carries the resources acquired from the PGW.

The PGW obtains the SSID priority list that the user subscribes to from the HSS/HLR. The obtaining mode may be the user subscription information acquired by the ePDG from the AAA server during authentication, and may be brought to the PGW when the user tunnel request is created, or may be created by the PGW. User session resources are obtained from the HSS/HLR through the AAA server.

Step 804: The PGW obtains network congestion status and traffic information of each cell in the current WLAN from the network monitoring module, and updates the SSID priority list according to the information.

Step 805: The PGW sends a signaling notification message to the UE from the created tunnel, where the SSID priority list and the preferred network are included. Preferably, the network indicates that when the routing policy performed by the terminal does not specify a data service, the uplink data stream is forwarded from the 3G network or the WLAN.

Step 806: After receiving the notification request message, the UE loads the routing policy, and extracts and saves the delivered SSID priority list, preferred network, and other information. The terminal adjusts according to the priority list information and the current actual network, and selects an optimal network that is actually available;

If the UE finds the currently accessed non-optimal WLAN and the optimal WLAN is available, then the handover of the WLANs with different SSIDs is initiated.

Step 807: The UE sends an acknowledgment response message to the PGW according to the received message, where the message carries the SSID/ESSID/BSSID actually selected by the UE, and other unique identifiers of the AP, such as a MAC address, and the message may also carry the result value of the routing operation. And reason fields.

Step 808: The UE initiates a service data service. The uplink and downlink data streams will be transmitted from the corresponding network according to the uplink and downlink routing policies acquired by the PGW. During the transmission, the PGW periodically reports user traffic information to the network monitoring module. If the reported service accesses the PDN via the WLAN, the reported traffic information includes the WLAN location information (ESSID/BSSDI information, AC/AP information, and the label). The network monitoring module collects the traffic information to the corresponding AC/AP of the WLAN, and is used to collect the network traffic and the congestion information. Similarly, the information reported by the 3G service traffic carries the location information of the 3G network. Used by the network monitoring module to perform traffic statistics.

Embodiment 4

FIG. 9 is a flow chart of switching services when a terminal is about to leave a WLAN coverage area according to an embodiment of the present invention. When the terminal is in the edge of a certain WLAN coverage area of the WLAN and is about to leave the coverage area, or the current wireless network transmission data is congested, or the user initiates the handover network, the terminal needs to notify the PGW to transfer the service to other stable networks in time. That is, 3G networks to ensure that data traffic is not interrupted. As shown in Figure 9, the process includes the following steps:

Step 901: When the terminal finds that the current WLAN is about to be unavailable, the UE sends a WLAN change notification message (for example, a WLAN loss message) to the PGW to notify the gateway that the WLAN bearer is about to be unavailable. The message carries an event indicating that the UE is currently located in the SSID or other AP identity, and the WLAN bearer is unavailable.

The reason why the WLAN is about to be unavailable may be that the wireless signal drops to a certain threshold, or the data transmission has more packet loss, or the user is notified that the terminal is about to leave the WLAN.

Step 902: If the network uses the Policy and Charging Control (PCC), and the PCRF network element is deployed to specify the policy, the PGW sends a Credit Control Request Update (CCR-U) message to the PCRF. , carrying a bearer loss event.

Step 903: The PCRF sends a credit control answer update (CCA-U) message to the PGW according to the bearer loss event reported by the PGW, and a new routing policy is sent in the message. The PGW updates the uplink and downlink routing policy, and changes the routing policy forwarded from the WLAN before the bearer is lost to be forwarded from the 3G network.

If the PCRF network element is not disposed, the PGW, after receiving the notification message sent by the terminal, parses the event that the WLAN bearer is unavailable, and learns that the UE is about to lose the bearer. The PGW updates the uplink and downlink routing policy. Step 904: The PGW reports the WLAN bearer loss message event to the network monitoring module, where the message carries the SSID and the identifier information of the AP. The PGW does not use the previous traffic when reporting user traffic information. The identity used, and the cell identity experienced by the actual traffic flow is used. Since the WLAN service is blocked at this time, the WLAN service will be executed from the 3G network, and thus the cell identity experienced by the actual service flow, 3G network location information (cell information and location area information), is used.

Step 905: The PGW returns an acknowledgement message to the UE, where the message carries a new routing policy.

Step 906: The UE reloads the new routing policy from the acknowledgment message, and the slave network is available.

The task performed on the previous WLAN is requested on the 3GPP network.

Step 907: The PGW reports the user traffic to the network monitoring module according to the network experienced by the PGW. To ensure that the interactive signaling messages can be reliably transmitted to the peer, the notification/acknowledgement message can be transmitted from the stable network (3GPP network). Considering that the WLAN coverage area is small, the network is unstable. When the terminal finds that the bearer is lost, it does not need to delete the session between the AC/ePDG and the PGW immediately, but keeps the session for a certain period of time. Network, thereby reducing user waiting time.

Embodiment 5

FIG. 10 is a flow chart of switching services when a terminal re-enters a WLAN coverage area according to an embodiment of the present invention. When the terminal is in the edge of the WLAN coverage area and is about to return to the WLAN coverage area, or when the current wireless network transmission data is congested, or when the user actively switches back to the network, the terminal needs to notify the PGW bearer to resume in time. The PGW will redistribute the data traffic flow.

Referring to FIG. 9 and FIG. 10, the main difference between the flow of this embodiment and the flow of FIG. 9 is that the process of this embodiment includes the following steps:

Step 1001: The UE finds that the current WLAN is available again, and immediately sends a notification message to the PGW to notify the PGW that the bearer is available for recovery. The message carries an event indicating that the WLAN bearer is available, a WLAN identity, such as an ESSID/BSSID, and an identity of the AP (eg, a MAC address).

Step 1002: After receiving the notification message, the PGW parses the event of the WLAN bearer recovery, and the PGW may determine, according to the WLAN identifier and the previous WLAN identity, that the UE is switching between different APs under the same SSID, or indirectly changing the network under different SSIDs. Wait. If the PCRF is deployed, the PGW sends a CCR-U message to the PCRF to carry the bearer recovery event.

Step 1003: The PCRF reports a bearer recovery event according to the PGW, and returns a CCA-U to the PGW. A new routing policy is sent in the message. The PGW updates the routing policy forwarded from the 3G network to be forwarded from the WLAN according to the CCA-U indication.

Step 1004: The PGW reports the WLAN bearer recovery event to the network monitoring module, where the message carries the new ESSID/BSSID and the identification information of the AP.

Step 1005: The PGW returns an acknowledgement message to the UE, where the message carries a new routing policy. Step 1006: The UE reloads the new routing policy from the acknowledgment message, and performs the service according to the new routing policy. When the PGW reports the traffic information of the WLAN of the user, a new location identifier is used, which is determined according to the location of the actual UE in the WLAN.

Embodiment 6

FIG. 11 is a flowchart of monitoring when a terminal performs cell handover in a WLAN coverage area according to an embodiment of the present invention. When the terminal is roaming or switching between different APs in the WLAN, or when switching between different SSID networks, the terminal seamlessly switches from one AP to another AP or from one SSID WLAN to another SSID network, as mentioned in FIG. In different cases, the terminal does not sense the network interruption, but it will perceive the ESSID/BSSID, or the AP identity change. The terminal completes the network update message, and the PGW updates and reports the WLAN identity. The main difference between the process of this embodiment and the process shown in FIG. 10 is that the process of this embodiment includes the following steps:

Step 1101: When the user moves in the WLAN coverage area, the UE can negotiate with the AP/AC to complete network update and handover on the wireless side. The AP change has little impact on the core network data offload.

Step 1102: After discovering that the WLAN location changes, the UE sends a network update message (notification message) to the PGW on the core network side, where the message carries an ESSID/BSSID or an AP identifier.

Step 1103a: The PGW determines, according to the change of the network parameter, whether the resources on the core network side, such as the quality of service (QoS) and the routing policy, are changed.

After receiving the notification message, the PGW parses the event of the WLAN bearer recovery. The PGW can determine, according to the WLAN identity and the previous WLAN identity, that the UE is switched between different APs under the same SSID, or indirectly exchanged by different SSID networks. If the PCRF is deployed, the PGW sends a CCR-U message to the PCRF to carry the bearer recovery event.

Step 1103b: The PCRF reports a bearer recovery event according to the PGW, and returns a CCA-U to the PGW. A new routing policy is sent in the message. The PGW updates the routing policy forwarded from the 3G network to be forwarded from the WLAN according to the CCA-U indication.

If the radio side change does not affect the PGW side resource usage, the PGW does not send a message to the PCRF network element.

Step 1104: The PGW reports the WLAN bearer reply event to the network monitoring module, where the message carries the new ESSID/BSSID and the identification information of the AP.

Steps 1105, 1106, and 1107 are the same as steps 1005, 1006, and 1007 shown in Fig. 10, and will not be described again.

UE network status events (including WLAN access, WLAN drop, WLAN recovery, and WLAN handover, etc.) mentioned above, UE-selectable SSID preferred list, UE preferred network, and ESSID/BSSID or AP actually selected by the UE The information such as the identifier cannot be directly transmitted between the UE and the PGW through the existing protocols and procedures. Therefore, the embodiment of the present invention also provides a protocol stack based on the established user plane tunnel, as shown in FIG. It is transmitted between the UE and the PGW.

As shown in Figure 12, the protocol stack signaling (Signalling) is optionally encapsulated in a user plane protocol, such as GTP, and can also be encapsulated on other user plane messages, such as MIP or Internet Protocol Security (Internet Protocol Security, IPsec) protocol.

Signalling mainly contains the aforementioned notification messages and confirmation messages. Signalling can be RSVP, PPP, SIP, and RADIUS protocols.

The added protocol stack is on the PGW side above the GTP specified by 3GPP or above the MIP specified by IEFT.

In addition, as shown in FIG. 13, the embodiment of the present invention further provides a network monitoring terminal, where the terminal includes:

The SSID receiving module 131 is configured to: receive an SSID priority list of the WLAN delivered by the PGW of the 3GPP network;

a location information reporting module 132, configured to: access according to the received SSID priority list After the WLAN, the WLAN location information is reported to the PGW, where the WLAN location information includes an SSID and AP information.

Optionally, the SSID receiving module 131 is further configured to: when the PGW carries the SSID of the WLAN in the access response message, obtain the SSID priority list of the WLAN from the access response message; when the PGW is found to be increased When the SSID is sent in the protocol stack signaling, the SSID priority list of the WLAN is obtained from the added protocol stack signaling.

Optionally, the location information reporting module 132 is further configured to: when detecting that the WLAN accessed by the terminal changes, send a WLAN change message to the PGW;

The location information reporting module 132 is configured to send a WLAN change message to the PGW in the following manner:

When the WLAN signal is found to be lost, the WLAN loss event is reported to the PGW by the added protocol stack signaling, and the WLAN location information before the loss is obtained;

In addition, as shown in FIG. 14, the embodiment of the present invention further provides a network data monitoring packet network gateway, where the packet data network gateway includes:

The SSID sending module 141 is configured to: deliver the SSID priority list of the WLAN to the terminal; the terminal traffic reporting module 142 is configured to: receive the WLAN location information reported by the terminal when accessing the WLAN, where the WLAN location information The SSID and the AP information are included; when the terminal initiates the uplink and downlink data service, the service traffic of the WLAN of the terminal is reported to the network management system, and the WLAN location information reported by the terminal is carried.

Optionally,

The terminal traffic reporting module 142 is further configured to: adjust, according to the WLAN change message sent by the terminal, the “^ mode” on the service traffic of the terminal; The terminal traffic reporting module 142 is configured to adjust the service traffic reporting manner of the terminal in the following manner:

Optionally,

The SSID sending module 141 is configured to send a WLAN SSID priority list to the terminal in the following manner:

And sending the SSID priority list to the terminal by using a PCO field in the access response message in the 3GPP access process of the terminal; or

In addition, as shown in FIG. 15, the embodiment of the present invention further provides a network energy-saving control system, where the network energy-saving control system includes a network monitoring module 151 in the network management system, and an energy-saving control module 152, where:

The network monitoring module 151 is configured to collect the service traffic information of the terminal to the WLAN AC or AP corresponding to the WLAN location information according to the WLAN location information of the terminal that is carried by the PGW when reporting the service traffic of the terminal. And monitoring the cell load of the 3GPP network and the load of each WLAN AP according to the statistical service traffic; wherein the WLAN location information includes an SSID and AP information;

The energy-saving control module 152 is configured to: after determining that the AP meets the energy-saving control condition, after performing network migration processing on the online user under the AP, control the AP to enter sleep or reduce the transmit power. Optionally, the energy-saving control module 152 is further configured to: when determining that the AP meets the energy-saving control condition, control the AP to cancel sleep or increase transmit power.

Optionally, the energy saving control module 152 determines that the AP meets the energy saving control condition as follows:

The network monitoring module 151 determines that the network service traffic of the AP is smaller than the first energy saving threshold in the first sampling time period, and determines that the network service traffic of the neighboring AP of the AP is in the first Whether the time zone is smaller than the second energy saving threshold, and whether the 3GPP network service traffic covering the AP is lower than the third energy saving threshold, and if yes, determining that the AP meets the energy saving control condition; if not, It is determined that the AP does not satisfy the energy saving control condition.

Optionally, the energy saving control module 152 determines that the AP meets the disarming control condition as follows:

If it is less than the second wake-up threshold, if it is greater than the second wake-up threshold, it is determined whether the network traffic of the neighboring AP is greater than the second wake-up threshold in the first sampling time period. And determining that the AP meets the de-energization control condition, and the recovery level information is the recovery level one; if not greater than or equal to the second wake-up threshold, determining whether the service traffic of the 3GPP network covering the local AP is greater than the third wake-up a threshold value, if it is greater than or equal to the third wake-up threshold, determining that the AP meets the energy-saving control condition, and the recovery level information is a recovery level one; if not greater than or equal to the third wake-up threshold, determining the The AP does not satisfy the release energy saving control condition.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. The present invention may be embodied in various other embodiments without departing from the spirit and scope of the embodiments of the present invention. And modifications are intended to fall within the scope of the appended claims. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.

INDUSTRIAL APPLICABILITY With the technical solution of the embodiments of the present invention, traffic monitoring of the WLAN and the 3GPP network of the terminal can be implemented, and energy-saving split between the WLAN and the 3GPP network can be realized.

Claims

Claim

A network monitoring method, comprising: a service set identifier (SSID) priority list of a delivered wireless local area network (WLAN), and selecting a WLAN access;

After the terminal accesses the WLAN, the WLAN location information is reported to the PGW, where the WLAN location information includes an SSID and an access point (AP) information.

2. The method of claim 1 further comprising:

3. The method of claim 2, wherein

The sending, by the terminal, the WLAN change message to the PGW, includes:

When the terminal finds that the WLAN signal is interrupted, the WLAN loss event and the WLAN location information before the loss are reported to the PGW by using the added protocol stack signaling;

When the terminal WLAN signal is restored, the WLAN recovery event and the restored WLAN location information are reported to the PGW by using the added protocol stack signaling;

4. The method of claim 3, wherein

The added protocol stack signaling includes: Resource Reservation Protocol (RSVP), Point-to-Point Protocol (PPP), Session Initiation Protocol (SIP), or Remote Authentication Dial-In User Service (RADIUS) protocol.

5. A network monitoring method, including:

6. The method of claim 5, further comprising:

When receiving the WLAN change message sent by the terminal, the PGW adjusts the manner of reporting the service traffic of the terminal;

The adjusting, by the PGW, the service traffic reporting manner of the terminal includes: if the WLAN service of the terminal is switched to a 3rd Generation Partnership Project (3GPP) network, the PGW reports to the network management system Describe the 3GPP network location information of the terminal;

If the WLAN service of the terminal is interrupted, the PGW stops the WLAN service traffic information and

If the WLAN of the terminal is restored or the WLAN is switched, the PGW carries the new WLAN location information reported by the terminal when reporting the service traffic information of the WLAN of the terminal to the network management system.

7. The method of claim 5, further comprising:

In the process of accessing the 3GPP network, the PGW obtains an SSID priority list in the user subscription information of the terminal from a home location register (HLR), and according to a network congestion situation obtained from the network management system. After the SSID priority list is updated, the updated SSID priority list is sent to the terminal.

8. The method of claim 7, wherein

The supporting gateway obtains, from the HLR, the SSID priority list included in the user subscription information in the 3GPP attaching or WLAN authentication process of the terminal; when the supporting gateway establishes a tunnel with the PGW, the SSID is used. a priority list is brought to the PGW;

The PGW obtains an SSID priority list included in the user subscription information from the HLR through an Authentication, Authorization, and Accounting (AAA) server during the activation process.

9. The method according to claim 7 or 8, wherein

Sending, by the PGW, the SSID priority list to the terminal, including:

The PGW in the 3GPP access process of the terminal, the SSID priority list is The PCO field in the access response message is sent to the terminal; or

After the 3GPP access or the WLAN access of the terminal is completed, the PGW sends the SSID priority list to the terminal from the user plane through the added protocol stack signaling.

10. The method of claim 9, wherein

11. The method of claim 9, wherein

The added protocol stack signaling is on the PGW side above the 3GPP defined General Packet Radio Service Tunneling Protocol (GTP) or over the Internet Engineering Task Force (IETF) defined Mobile Internet Protocol (MIP).

12. A network energy saving control method, comprising:

13. The method of claim 12, wherein

14. The method of claim 12, further comprising:

15. The method of claim 14, wherein The controlling, by the network management system, the AP to release the sleep or increase the transmit power includes: sending, by the network management system, the energy-saving control message to the control unit of the AP or the AP, and by using the energy-saving control message Recovery level information indicating that the AP releases sleep or increases transmit power.

16. The method of claim 12 or 13, wherein

17. The method of claim 14 or 15, wherein

If it is greater than or equal to the first wake-up threshold, determining that the AP meets the de-energization control condition, and the recovery level information is a recovery level two;

If it is less than the second wake-up threshold, if it is greater than the second wake-up threshold, it is determined whether the network traffic of the neighboring AP is greater than the second wake-up threshold in the first sampling time period. And determining that the AP meets the de-energization control condition, and the recovery level information is a recovery level one; if not greater than or equal to the second wake-up threshold, continuing to determine whether the 3GPP network service traffic covering the local AP is greater than the third Determining the threshold value, if it is greater than or equal to the third wake-up threshold, determining that the AP meets the de-energization control condition, and the recovery level information is a recovery level one; if not greater than or equal to the third wake-up threshold, It is determined that the AP does not satisfy the release energy saving control condition.

18. A terminal, comprising:

a Service Set Identifier (SSID) receiving module configured to: receive a SSID of a wireless local area network (WLAN) delivered by a Packet Data Network Gateway (PGW) of a Third Generation Partnership Project (3GPP) network Prior list; and

The location information reporting module is configured to: report the WLAN location information to the PGW after accessing the WLAN according to the received SSID priority list, where the WLAN location information includes an SSID and an access point (AP) information.

19. The terminal of claim 18, wherein

The SSID receiving module is configured to receive the SSID priority list of the WLAN delivered by the PGW of the 3GPP network in the following manner:

When the PGW is configured to carry the SSID of the WLAN in the access response message, obtain the SSID priority list of the WLAN from the access response message, and send the SSID to the PGW from the increased protocol stack signaling. And obtaining, by the added protocol stack signaling, an SSID priority list of the WLAN.

The terminal according to claim 18 or 19, wherein

21. A packet data network gateway for network monitoring, comprising:

a service set identifier (SSID) delivery module, configured to: deliver a SSID priority list of a wireless local area network (WLAN) to the terminal;

The terminal traffic reporting module is configured to: receive the WLAN location information reported by the terminal when accessing the WLAN, where the WLAN location information includes an SSID and an access point (AP) information; and when the terminal initiates an uplink and downlink data service Reporting the terminal to the network management system Traffic of the WLAN, and carrying the WLAN location information reported by the terminal.

22. The packet data network gateway of claim 21, wherein

23. The packet data network gateway according to claim 21 or 22, wherein

24. A network energy-saving control system, comprising a network monitoring module in a network management system, and an energy-saving control module, wherein:

The energy-saving control module is configured to: after determining that the AP meets the energy-saving control condition, after performing network migration processing on the online user under the AP, controlling the AP to enter sleep or reduce transmission Power.

25. The system of claim 24, wherein

26. The system of claim 24, wherein

27. The system of claim 25, wherein

If it is less than the second wake-up threshold, if it is greater than the second wake-up threshold, it is determined whether the network traffic of the neighboring AP is greater than the second wake-up threshold in the first sampling time period. And determining that the AP meets the de-energization control condition, and the recovery level information is a recovery level one; if not greater than or equal to the second wake-up threshold, determining whether the service traffic of the 3GPP network covering the local AP is greater than a third wake-up threshold, if it is greater than or equal to the third wake-up threshold, determining that the AP meets the de-energization control condition, and the recovery level information is a recovery level one; if not greater than or equal to the third wake-up threshold, Then, it is determined that the AP does not satisfy the release energy saving control condition.