WO2011069422A1 - Procédé de régulation de l'encombrement, centre d'exploitation et de maintenance et station de base - Google Patents

Procédé de régulation de l'encombrement, centre d'exploitation et de maintenance et station de base Download PDF

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Publication number
WO2011069422A1
WO2011069422A1 PCT/CN2010/079284 CN2010079284W WO2011069422A1 WO 2011069422 A1 WO2011069422 A1 WO 2011069422A1 CN 2010079284 W CN2010079284 W CN 2010079284W WO 2011069422 A1 WO2011069422 A1 WO 2011069422A1
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WIPO (PCT)
Prior art keywords
congestion
cell
policy
status report
control
Prior art date
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PCT/CN2010/079284
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English (en)
Chinese (zh)
Inventor
罗鹏
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to ES10835457.2T priority Critical patent/ES2685303T3/es
Priority to EP18175280.9A priority patent/EP3461168B1/fr
Priority to EP10835457.2A priority patent/EP2512176B1/fr
Publication of WO2011069422A1 publication Critical patent/WO2011069422A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a congestion control method, an operation and maintenance center device, and a base station. Background technique
  • the prior art mainly provides two solutions for performing congestion control, wherein one solution is: adding a probe point behind the base station, monitoring the congestion status of the base station by the probe, and analyzing the congestion status of the base station User information and business data, and congestion control.
  • the probe can monitor the congestion status of the base station, it is difficult to detect the user information under the base station, and the probe cannot perform flexible policy control.
  • the charging point of the network is in the core network, if the probe performs congestion control, the discarded packet may still be charged in the core network, which may cause charging error.
  • the cost is high.
  • the radio network controller (Radio Network Controller) ;
  • the RNC may upload a service area (SA) information to the core network, so that the RNC may notify the core network when the user's SA changes, usually one.
  • SA service area
  • the cell configuration is An SA.
  • the GPRS support node hereinafter referred to as SGSN
  • GGSN Gateway GPRS Support Node
  • the RNC/SGSN/GGSN of the current network needs to be upgraded; and the capacity of each base station and the cell is different, and the core network cannot accurately determine whether the base station is congested according to the user information; if the user switches between cells very much Frequently, the RNC sends a large number of location report messages to the core network, which has a very large impact on the performance of the RNC/SGSN/GGSN. Therefore, in order to reduce the signaling impact of the RNC on the core network, the RNC's location (SA) reports messages. Usually not turned on.
  • Embodiments of the present invention provide a congestion control method, an operation and maintenance center device, and a base station, to implement congestion control that affects a base station by low-cost and small network performance through a core network.
  • An embodiment of the present invention provides a congestion control method, including:
  • the operation and maintenance center receives the congestion status report of the base station
  • the congestion status report is sent to the policy charging and control rule function entity, such that the policy charging and control rule function entity performs congestion control based on the congestion status report.
  • An embodiment of the present invention further provides an operation and maintenance center device, including:
  • a receiving module configured to receive a congestion status report of the base station
  • a sending module configured to send a congestion status report received by the receiving module to the policy charging and control rule function entity, so that the policy charging and control rule function entity performs congestion control according to the congestion status report.
  • the embodiment of the invention further provides a policy charging and control rule function entity, including:
  • a report receiving module configured to receive a congestion status report sent by the operation and maintenance center device, and a service restriction module, configured to perform congestion according to the congestion status report received by the report receiving module
  • the state when there is congestion in a cell, restricts users in the cell where congestion occurs.
  • the embodiment of the invention further provides a base station, including:
  • a generating module configured to generate a congestion status report
  • a sending module configured to send the congestion status report generated by the generating module to the operation and maintenance center device.
  • the operation and maintenance center receives the congestion status report of the base station, and sends the congestion status report to the policy charging and control rule function entity, so that the policy charging and control rule function entity can perform the congestion status function according to the congestion status report.
  • Congestion control Therefore, the congestion control is implemented in real time, and the embodiment of the present invention does not need to add additional equipment, which saves cost; and the core network does not need to enable the user location reporting function, thereby reducing the impact on network performance.
  • FIG. 1 is a flow chart of an embodiment of a congestion control method according to the present invention.
  • FIG. 2 is a flow chart of another embodiment of a congestion control method according to the present invention.
  • FIG. 3 is a flowchart of still another embodiment of a congestion control method according to the present invention.
  • FIG. 4 is a schematic diagram of a congestion control effect according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of congestion control when a user changes in a cell according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of an embodiment of an operation and maintenance center device according to the present invention
  • FIG. 7 is a schematic structural diagram of an embodiment of a policy charging and control rule function entity according to the present invention
  • FIG. 8 is a schematic structural diagram of another embodiment of a policy charging and control rule function entity according to the present invention
  • FIG. 10 is a schematic structural diagram of another embodiment of a base station according to the present invention
  • FIG. 11 is a schematic structural diagram of an embodiment of a congestion control system according to the present invention
  • FIG. 12 is a schematic structural diagram of another embodiment of a congestion control system according to the present invention. detailed description
  • the wireless network is generally managed and maintained by the Operations Maintenance Center (hereinafter referred to as ⁇ MC), including the wireless access network.
  • ⁇ MC Operations Maintenance Center
  • the ⁇ MC is a network management device, independent of the main communication system.
  • Equipment generally not involved in processing business.
  • the embodiment of the invention provides a congestion control method, which receives a congestion status report of a base station through the 0MC.
  • FIG. 1 is a flowchart of an embodiment of a congestion control method according to the present invention. As shown in FIG. 1, the embodiment may include:
  • Step 101 The 0MC receives a congestion status report of the base station.
  • the congestion status report includes a cell identifier, a congestion status of the cell corresponding to the cell identifier, and a user identifier in the cell, where the congestion status report may include a cell identifier of multiple cells, and a user in each cell
  • the identifier may be one or more; the cell identifier and the user identifier in the congestion status report may be carried in the congestion status report in the form of a list or an array.
  • the embodiment of the present invention is not limited thereto, and the embodiment of the present invention reports the congestion status.
  • the carrying manner of the middle cell identifier and the user identifier is not limited.
  • the cell identifier may be a server area identifier or a cell global identifier (Cell Global Identity); the user identifier may be an International Mobile Subscriber Identity (hereinafter referred to as IMSI); hair
  • IMSI International Mobile Subscriber Identity
  • the cell identifier and the user identifier may also be other identifiers, as long as the cell identifier can identify different cells, and the user identifier can identify different users;
  • the congestion status can be congested or not congested, represented by “0” or “1", for example: “0” means no congestion, “1” means congestion; or, congestion status can be non-congested or congested, and congestion is more Differentiated at one level of congestion, the congestion level can be represented by numbers. For example: “0” means no congestion, “1” means level 1 congestion, "2" means level 2 congestion, etc. The larger the value, the higher the congestion level.
  • the congestion state of the cell is more serious; of course, the embodiment of the present invention is not limited to this, and other modes may be used to indicate congestion or non-congestion, as long as congestion can be distinguished; the congestion level can also be distinguished in other ways, for example: English alphabet or other characters As long as you can distinguish the level of congestion level.
  • the OMC can receive the congestion status report directly reported by the base station.
  • the OMC can receive the congestion status report reported by the base station through the base station controller, for example, the RNC.
  • the base station can periodically report the congestion status report, for example: The congestion status report is reported every 10 seconds in a period of 10 seconds.
  • the base station may also report a congestion status report when the congestion status of the cell changes in the base station, for example: reporting congestion status when a cell is congested Or, when the congestion state of the congested cell is released, the congestion status report is reported.
  • Step 102 Send a congestion status report to the policy charging and control rule function entity, so that the policy charging and control rule function entity performs congestion control according to the congestion status report.
  • a reporting interface is added between the OMC and the policy charging and control rule function entity, and the MC sends the congestion status report to the policy charging and control rule function entity through the reporting interface, so that the policy charging and control rule function entity Congestion control can be performed based on congestion status reports.
  • the policy charging and control rule function entity performs congestion control according to the congestion status report sent by the OMC, and does not need to add additional equipment, thereby saving cost; and the core network does not need to enable the user location reporting function, thereby reducing network performance. Impact.
  • Step 201 The policy charging and control rule function entity receives the congestion status report sent by the OMC.
  • the congestion status report includes a cell identifier, a congestion status of the cell corresponding to the cell identifier, and a user identifier in the cell, where the congestion status report may include a cell identifier of multiple cells, and the user identifier in each cell may be one or
  • the cell identifier and the user identifier in the congestion status report may be carried in the congestion status report in the form of a list or an array.
  • the embodiment of the present invention is not limited thereto, and the cell identifier and the user in the congestion status report are used in the embodiment of the present invention.
  • the carrying method of the logo is not limited.
  • a reporting interface is added between the OMC and the policy charging and control rule function entity, and the policy charging and control rule function entity receives the congestion status report reported by the OMC through the reporting interface.
  • the cell identifier may be a Server Area Identity or a Cell Global Identity;
  • the user identifier may be an IMSI; of course, the embodiment of the present invention is not limited thereto, and the cell identifier and the user identifier may also be other identifiers, as long as the cell identifier can be identified. Different cells, the user identifier can identify different users;
  • the congestion status can be congested or not congested, represented by “0” or “1", for example: “0” means no congestion, “1” means congestion; or, congestion status can be non-congested or congested, and congestion is more Differentiated at one level of congestion, the congestion level can be represented by numbers. For example: “0” means no congestion, “1” means level 1 congestion, "2" means level 2 congestion, etc. The larger the value, the higher the congestion level.
  • the congestion state of the cell is more serious; of course, the embodiment of the present invention is not limited to this, and other modes may be used to indicate congestion or non-congestion, as long as congestion can be distinguished; the congestion level can also be distinguished in other ways, for example: English alphabet or other characters As long as you can distinguish the level of congestion level.
  • Step 202 According to the congestion status in the congestion status report, when there is congestion in the cell, the user in the congested cell is restricted.
  • the policy charging and control rule function entity may limit the users in the congested cell according to the congestion status in the congestion status report, where the restriction on the user in the congested cell includes the cell in which congestion occurs.
  • the user in the network performs the traffic restriction or the service restriction.
  • the policy charging and control rule function entity can deliver the congestion control policy to the core network device, so that the core The heart network device can reduce the quality of service of users in the congested cell according to the congestion control policy.
  • the congestion status in the congestion status report includes the congestion level
  • the policy charging and control rule function entity may deliver different congestion control policies according to the congestion level of the cell in which the congestion occurs: If the value is high, the congestion of the cell is heavy.
  • the policy charging and control rule function entity can deliver the congestion control policy with higher control degree, so that the service quality of the cell with higher congestion level and the service before congestion occur. If the congestion level of the cell is low, the congestion of the cell is relatively low, and the policy charging and control rule function entity can deliver a congestion control policy with a lower degree of control, so that the congestion level The quality of service of lower cells is less than the quality of service before congestion occurs.
  • the policy charging and control rule function entity may also release the restriction on the users in the congested cell, including releasing the traffic restriction or service restriction of the user in the congested cell.
  • the method for releasing the restriction on the user in the cell in which the congestion occurs is: the policy charging and the control rule function entity may send the congestion control release policy to the core network device, so that the core network device may release the policy according to the congestion control.
  • the quality of service of the user in the congested cell is adjusted, and the quality of service of the user in the cell to be congested is restored to the quality of service before the congestion occurs.
  • the policy charging and control rule function entity may be periodically or periodically.
  • the timeout delivery includes a policy charging and control rule function entity at a predetermined one or more times, or after the congestion control policy is delivered and a predetermined duration is passed, the congestion control release policy is performed Distribute to the core network device; periodically, the policy charging and control rule function entity periodically sends a congestion control release policy to the core network device according to a predetermined period; or, the policy charging and control rule function entity also Congestion status report according to OMC In the congestion state, the congestion control release policy is sent to the core network device after the congestion state of the congested cell is released.
  • the policy charging and control rule function entity can configure the validity period of the congestion control policy, and deliver the validity period to the core network device for the core network device.
  • the quality of service of users in a congested cell after the expiration of the validity period Reverting to the quality of service before the congestion occurs, so that the core network device can release the restriction on the user in the congested cell in time, and can reduce the uncertainty caused by the delivery policy, for example: the congestion control release policy is lost and the user is caused.
  • the validity period of the congestion control policy may be delivered to the core network device when the policy charging and control rule function entity sends the congestion control policy, or the congestion control policy may be delivered. Then, the validity period of the congestion control policy is sent to the core network device by using a separate message.
  • the embodiment of the present invention does not limit the delivery mode of the congestion control policy.
  • the policy charging and control rule function entity may send the configured congestion control policy to the core network device.
  • the congestion state report sent by the OMC is received, and after the congestion state of the cell in which the congestion occurs is determined according to the congestion state in the congestion status report, the congestion control release policy is sent to the core network device, and the core network is used.
  • the device can configure the execution priority of the two modes.
  • the execution priority of the congestion control release policy can be configured to be higher than the execution priority of the validity period of the congestion control policy, so that if the core network device does not expire in the validity period of the congestion control policy.
  • the core network device When receiving the congestion control release policy sent by the policy charging and control rule function entity, the core network device preferentially executes the congestion control release policy because the execution priority of the congestion control release policy is higher than the execution priority of the validity period of the congestion control policy. , then the core network The release of the congestion control strategy to lift restrictions on cell congestion occurs in the user.
  • the above is only one example of the combination of several methods for releasing the restriction on the user in the cell in which the congestion occurs.
  • the embodiment of the present invention is not limited thereto, and the foregoing may further remove the restriction on the user in the cell in which the congestion occurs.
  • the embodiments of the present invention are not limited in this way.
  • the policy charging and control rule function entity may periodically or periodically send a congestion control release policy to the core network device, or send the validity period of the congestion control policy to the core network device, so that the policy charging and control
  • the rule function entity does not need to save the user's location information, and does not need to monitor the user location in real time. Even if the user leaves the congested cell, the restriction on the user can be automatically cancelled; and the congestion control is cancelled by using the timing, periodicity or configuration validity period.
  • the policy charging and control rule function entity determines that the congestion state of the cell in which the congestion has occurred has been canceled according to the congestion status in the congestion status report sent by the OMC, and the policy charging and control rule function entity still does not The restriction on the users in the congested cell is released, so that the frequency of the cell congestion control service congestion cancellation recovery service re-congestion cycle can be effectively lengthened.
  • the core network device in this embodiment may be a GGSN.
  • the foregoing embodiment implements real-time restriction on users in a cell in which congestion occurs, and can release restrictions on users in a cell in which congestion occurs, and does not need to add additional equipment, thereby saving cost; and the core network does not need to open the user location.
  • the reporting function reduces the impact on network performance.
  • FIG. 3 is a flowchart of still another embodiment of a congestion control method according to the present invention.
  • This embodiment uses a core network device as a GGSN as an example for description. As shown in FIG. 3, this embodiment may include:
  • Step 301 The base station reports a congestion status report to the OMC, where the congestion status report includes a cell identifier, a congestion status of the cell corresponding to the cell identifier, and a user identifier in the cell.
  • the congestion status report may include a cell identifier of multiple cells.
  • the user identifier in each cell may be one or more.
  • the cell identifier and the user identifier in the congestion status report may be carried in the congestion status report in the form of a list or an array. The embodiment does not limit the manner in which the cell identifier and the user identifier are carried in the congestion status report.
  • the cell identifier may be a Server Area Identity or a Cell Global Identity;
  • the user identifier may be an IMSI; of course, the embodiment of the present invention is not limited thereto, and the cell identifier and the user identifier may also be other identifiers, as long as the cell identifier can be identified. Different cells, the user identifier can identify different users;
  • the congestion status can be congested or not congested, represented by “0” or “1", for example: “0” means no congestion, “1” means congestion; or, congestion status can be non-congested or congested, and congestion is more Differentiated at one level of congestion, the congestion level can be represented by numbers. For example: “0” means no congestion, “1” means level 1 congestion, "2" means level 2 congestion, etc. The larger the value, the higher the congestion level.
  • the congestion state of the cell is more serious; of course, the embodiment of the present invention is not limited to this, and other modes may be used to indicate congestion or non-congestion, as long as congestion can be distinguished; the congestion level may also be He distinguishes the way, for example: English letters or other characters, as long as you can distinguish the level of congestion.
  • the base station may periodically report the congestion status report, for example, reporting the congestion status report every 10 seconds in a 10-second period; the base station may also report congestion when the congestion status of the cell in the base station changes.
  • the status report is, for example, reporting a congestion status report when a cell is congested; or reporting a congestion status report when the congestion state of the congested cell is released; of course, the embodiment of the present invention is not limited thereto, and according to the actual application scenario,
  • the base station may change from no congestion to congestion, or from congestion to non-congestion, or congestion congestion or congestion mitigation.
  • the base station may perform flexible congestion state reporting, and then perform corresponding congestion control processing.
  • Step 302 Optionally, in a part of the network, the RNC proxy base station reports the congestion status report to the OMC.
  • Step 303 The OMC sends the congestion status report to the Policy Charging and Control Rule Function (hereinafter referred to as: PCRF) entity.
  • PCRF Policy Charging and Control Rule Function
  • a reporting interface is added between the OMC and the PCRF entity, and the OMC sends a congestion status report to the PCRF entity through the reporting interface.
  • Step 304 The PCRF entity sends a congestion control policy to the GGSN when the cell is congested according to the congestion status in the congestion status report.
  • the PCRF entity may use a Gx interface to send a congestion control policy to the GGSN, and the control object is a user in a cell in which congestion occurs.
  • the policy charging and control rule function entity may deliver different congestion control policies according to the congestion level of the cell in which the congestion occurs; If the congestion level of the cell is low, it indicates that the congestion of the cell is heavy.
  • the PCRF entity can deliver a congestion control policy with a high degree of control. For example, the user in the cell that is congested is restricted to use a certain service. The congestion of the cell is relatively low.
  • the PCRF entity can deliver the congestion control policy with lower control. For example, the service is not restricted to the users in the congested cell, and only the traffic is generated to the users in the congested cell. limit.
  • Step 305, the GGSN reduces Quality of Service (hereinafter referred to as QoS).
  • QoS Quality of Service
  • the GGSN reduces the QoS of the user in the congested cell according to the congestion control policy delivered by the PCRF entity.
  • the PCRF entity delivers a congestion control policy with a high degree of control
  • the GGSN may limit the users in the congested cell to use a certain service according to the congestion control policy, for example, the GGSN starts intercepting users in the congested cell.
  • Point to Point (P2P) service so that the QoS of a cell with a higher congestion level decreases more than the QoS before congestion occurs.
  • P2P Point to Point
  • the GGSN may perform traffic restriction on the users in the congested cell according to the congestion control policy, and only restrict traffic to the users in the congested cell. For example, the GGSN does not limit the users in the congested cell to use P2P services, only The rate of the P2P service used by the user in the congested cell is limited, so that the rate of the P2P service used by the user in the congested cell does not exceed the preset threshold, so that the QoS of the cell with a lower congestion level occurs. There is less degradation in QoS before congestion.
  • Step 306 The PCRF entity sends a congestion control release policy to the GGSN to release the restriction on the user in the congested cell.
  • the PCRF entity may send a congestion control release policy to the GGSN by using the method provided in step 202 of the embodiment shown in FIG. 2, and details are not described herein again.
  • Step 307 the GGSN resumes QoS.
  • the GGSN restores the QoS of the user in the congested cell to the QoS before congestion occurs according to the congestion control release policy delivered by the PCRF entity, and releases the traffic restriction or service restriction on the user in the congested cell.
  • step 301 to step 307 are re-executed to initiate a new round of cell congestion control.
  • the restriction on the user in the cell in which the congestion occurs may be replaced by: replacing the above steps 306 and 307 with:
  • Step 306 ′ the PCRF entity configures the validity period of the congestion control policy, and delivers the validity period to the GGSN.
  • the validity period of the congestion control policy may be sent by the PCRF entity.
  • the policy is sent to the GGSN, and the validity period of the congestion control policy is sent to the GGSN through a separate message after the congestion control policy is sent.
  • the validity period of the congestion control policy is sent in the embodiment of the present invention. Not limited.
  • Step 307 ′ the GGSN sets a timer according to the length of the validity period, and after the time of the timer arrives, restores the QoS of the user in the congested cell to the QoS before the congestion occurs, and releases the user in the cell in which the congestion occurs. Traffic restrictions or business restrictions.
  • the GGSN can release the restriction on the user in the congested cell in time, and can reduce the uncertainty caused by the delivery policy, for example: the congestion control release policy is lost and the user is always Some services cannot be used.
  • the method for releasing the restriction on the user in the congested cell may also be used in combination. Please refer to the description in step 202 of the embodiment shown in FIG. 2 of the present invention, and details are not described herein again.
  • Fig. 4 is a schematic diagram of the congestion control effect of the embodiment of the present invention.
  • the cell traffic drops and tends to be stable.
  • the congestion control is removed, if the cell traffic exceeds the congestion threshold again, the PCRF entity will start the congestion control process again.
  • the users controlled twice are the users in the cell where congestion occurs.
  • FIG. 5 is a schematic diagram of congestion control when a user changes in a cell according to an embodiment of the present invention. As shown in FIG. 5, there are user 1 and user 2 in the cell, and the cell 2 is congested due to P2P download by the user 2, and the PCRF entity initiates congestion.
  • Both the user 1 and the user 2 are restricted from using the P2P service, and the congestion state of the cell is alleviated and restored to the normal state.
  • the user 2 roams out of the cell, and the user 3 enters the cell.
  • the cell 3 causes congestion again due to the P2P download by the user 3.
  • the PCRF entity initiates congestion control again, and User 1 and User 3 are restricted from using P2P services.
  • User 2 since User 2 has roamed out of the cell, User 2 is not subject to the congestion control initiated by the PCRF entity again. The effect is that after the timer of the first congestion control setting by the PCRF entity expires, the user 2 resumes the use capability of the P2P service.
  • the congestion control is performed on the cell by the PCRF entity, and no additional equipment such as a Probe is added, which saves the cost.
  • the OMC receives the congestion status report of the base station, and only needs to add a reporting interface between the ⁇ MC and the PCRF entity.
  • the congestion control of the base station can be implemented.
  • the congestion status report reported by the base station includes the user identifier, and the core network does not need to enable the user location reporting function, which can reduce the impact on the network performance.
  • the embodiment of the present invention also supports real-time base station congestion control.
  • the traffic restriction or service restriction is performed on the users in the congested cell in real time, and the service capability of the user can be restored in multiple manners, and the PCRF entity is not required to monitor the mobile state of the user in real time.
  • FIG. 6 is a schematic structural diagram of an embodiment of the operation and maintenance center device of the present invention.
  • the operation and maintenance center device of the present embodiment can implement the flowchart of the embodiment shown in FIG. 1 of the present invention.
  • the operation and maintenance center device can be The method includes: a receiving module 61 and a sending module 62.
  • the receiving module 61 is configured to receive a congestion status report of the base station, where the congestion status report includes a cell identifier, a congestion status of the cell corresponding to the cell identifier, and a user identifier in the cell.
  • the congestion status report may include a cell identifier of multiple cells, and the user identifier in each cell may be one or more; the cell identifier and the user identifier in the congestion status report may be carried in the form of a list or an array.
  • the embodiment of the present invention is not limited to this.
  • the embodiment of the present invention does not limit the manner in which the cell identifier and the user identifier are carried in the congestion status report.
  • the cell identifier may be a Server Area Identity or a Cell Global Identity.
  • the user identifier may be an IMSI.
  • the embodiment of the present invention is not limited thereto.
  • the cell identifier and the user identifier may also be other identifiers, as long as the cell identifier can identify different cells.
  • the user ID can identify different users;
  • the congestion status can be congested or not congested, represented by “0” or “1", for example: “0” means no congestion, “1” means congestion; or, congestion status can be non-congested or congested, and congestion is more Differentiated at one level of congestion, the congestion level can be represented by numbers. For example: “0” means no congestion, “1” means level 1 congestion, "2" means level 2 congestion, etc. The larger the value, the higher the congestion level.
  • the congestion state of the cell is more serious; of course, the embodiment of the present invention is not limited to this, and other modes may be used to indicate congestion or non-congestion, as long as congestion can be distinguished; the congestion level can also be distinguished in other ways, for example: English alphabet or other characters As long as you can distinguish the level of congestion level.
  • the receiving module 61 may receive the congestion status report reported by the base station; or the receiving module 61 may receive the congestion status report reported by the base station by the base station controller.
  • the sending module 62 is configured to send the congestion status report received by the receiving module 61 to the policy charging and control rule function entity, so that the policy charging and control rule function entity can perform congestion control according to the congestion status report;
  • the OMC adds a reporting interface to the policy charging and control rule function entity, and the sending module 62 can send the congestion status report to the policy charging and control rule function entity through the reporting interface, so that the policy charging and control rule function entity can be Congestion status reports for congestion control.
  • the operation and maintenance center device implemented by the foregoing embodiment implements congestion control on the cell in real time, and does not need to add additional equipment, thereby saving cost; and the core network does not need to enable the user location reporting function, thereby reducing the impact on network performance.
  • FIG. 7 is a schematic structural diagram of an embodiment of a policy charging and control rule function entity according to the present invention.
  • the policy charging and control rule function entity in this embodiment may implement the process of the embodiment shown in FIG. 2 of the present invention.
  • the policy charging and control rule function entity may include: a report receiving module 71 and a service limiting module 72.
  • the report receiving module 71 is configured to receive a congestion status report sent by the operation and maintenance center device, where the congestion status report includes a cell identifier, a congestion status of the cell corresponding to the cell identifier, and a user identifier in the cell. This embodiment is in the OMC and Increased reporting between functional charging and control rule functional entities The report receiving module 71 receives the congestion status report reported by the operation and maintenance center device through the report interface.
  • the congestion status report may include a cell identifier of multiple cells, where the user identifier in each cell may be one or more; the cell identifier and the user identifier in the congestion status report may be carried in a congested state in the form of a list or an array.
  • the embodiment of the present invention is not limited to this. The embodiment of the present invention does not limit the manner in which the cell identifier and the user identifier are carried in the congestion status report.
  • the cell identifier may be a Server Area Identity or a Cell Global Identity;
  • the user identifier may be an IMSI; of course, the embodiment of the present invention is not limited thereto, and the cell identifier and the user identifier may also be other identifiers, as long as the cell identifier can be identified. Different cells, the user identifier can identify different users;
  • the congestion status can be congested or not congested, represented by “0” or “1", for example: “0” means no congestion, “1” means congestion; or, congestion status can be non-congested or congested, and congestion is more Differentiated at one level of congestion, the congestion level can be represented by numbers. For example: “0” means no congestion, “1” means level 1 congestion, "2" means level 2 congestion, etc. The larger the value, the higher the congestion level.
  • the congestion state of the cell is more serious; of course, the embodiment of the present invention is not limited to this, and other modes may be used to indicate congestion or non-congestion, as long as congestion can be distinguished; the congestion level can also be distinguished in other ways, for example: English alphabet or other characters As long as you can distinguish the level of congestion level.
  • the service restriction module 72 is configured to limit the users in the congested cell when there is congestion in the cell according to the congestion status in the congestion status report received by the report receiving module 71.
  • the service restriction module 72 restricts users in the congested cell by performing traffic restriction or service restriction on users in the congested cell.
  • the service restriction module 72 can deliver the congestion control policy to the core network device, so that the core network device can reduce the quality of service of the user in the congested cell according to the congestion control policy.
  • the service restriction module 72 may deliver different congestion control policies according to the congestion level of the cell in which the congestion occurs. If the congestion level of the cell is high, the congestion situation of the cell is heavy.
  • the traffic restriction module 72 can deliver a congestion control policy with a high degree of control, so that the quality of service of the cell with a higher congestion level decreases more than the quality of service before congestion occurs.
  • the service restriction module 72 can deliver a congestion control policy with a lower degree of control, so that the quality of service of the cell with a lower congestion level decreases less than that of the service before congestion occurs.
  • the policy charging and control rule function entity provided by the foregoing embodiment implements real-time restriction on users in a congested cell, and does not need to add additional equipment, thereby saving cost; and the core network does not need to enable user location reporting function. , reducing the impact on network performance.
  • FIG. 8 is a schematic structural diagram of another embodiment of a policy charging and control rule function entity according to the present invention.
  • the policy charging and control rule function entity in this embodiment may implement the process of the embodiment shown in FIG. 2 of the present invention.
  • the policy charging and control rule function entity may include: a report receiving module 81, a service limiting module 82, and a policy sending module 83.
  • the report receiving module 81 is configured to receive a congestion status report sent by the operation and maintenance center device, where the congestion status report includes a cell identifier, a congestion status of the cell corresponding to the cell identifier, and a user identifier in the cell.
  • This embodiment is in the OMC and the The policy charging and control rule function entity adds a reporting interface, and the report receiving module 81 receives the congestion status report reported by the operation and maintenance center device through the reporting interface.
  • the congestion status report may include a cell identifier of multiple cells, where the user identifier in each cell may be one or more; the cell identifier and the user identifier in the congestion status report may be carried in a congested state in the form of a list or an array.
  • the embodiment of the present invention is not limited to this. The embodiment of the present invention does not limit the manner in which the cell identifier and the user identifier are carried in the congestion status report.
  • the cell identifier may be a Server Area Identity or a Cell Global Identity;
  • the user identifier may be an IMSI; of course, the embodiment of the present invention is not limited thereto, and the cell identifier and the user identifier may also be other identifiers, as long as the cell identifier can be identified. Different cells, the user identifier can identify different users;
  • the congestion status can be either congested or not, represented by "0” or “1", for example: “0” Indicates that there is no congestion, "1" indicates congestion; or, the congestion status may be non-congested or congested, and the degree of congestion is distinguished by more than one congestion level, which may be represented by a number, for example: “0” means no congestion, "1" indicates a level 1 congestion, "2" indicates a level 2 congestion, etc., and a larger value indicates a higher congestion level, and a congestion state of the cell is more serious; of course, the embodiment of the present invention is not limited thereto, and may also indicate congestion or other means. It is not congested, as long as it can distinguish whether it is congested. Congestion levels can also be distinguished in other ways, such as: English letters or other characters, as long as the level of congestion can be distinguished.
  • the service restriction module 82 is configured to limit the users in the congested cell when there is congestion in the cell according to the congestion status in the congestion status report received by the report receiving module 81.
  • the service restriction module 82 restricts users in the congested cell by performing traffic restriction or service restriction on users in the congested cell.
  • the service restriction module 82 can deliver the congestion control policy to the core network device, so that the core network device can adjust the quality of service of the user in the congested cell according to the congestion control policy.
  • the service restriction module 82 may deliver different congestion control policies according to the congestion level of the cell in which the congestion occurs: if the congestion level of the cell is high, the congestion situation of the cell is heavy, and the service restriction module 82 is A congestion control policy with a high degree of control can be delivered, so that the quality of service of the cell with a higher congestion level decreases more than the quality of service before congestion occurs. If the congestion level of the cell is low, the cell occurs. The congestion condition is lighter, and the service restriction module 82 can deliver a congestion control policy with a lower degree of control, so that the quality of service of the cell with a lower congestion level decreases less than the quality of service before congestion occurs.
  • the policy issuance module 83 is configured to send a congestion control release policy to the core network device, so that the core network device restores the quality of service of the user in the congested cell to congestion according to the congestion control release policy. Previous quality of service.
  • the policy issuance module 83 may deliver the congestion control policy to the core network device after the traffic control module 82 delivers the congestion control policy and the predetermined time duration after the predetermined time period or periodically; Alternatively, the policy sending module 83 may be in a small congestion situation according to the congestion status in the congestion status report received by the report receiving module 81. After the congestion status of the area is released, the congestion control release policy is sent to the core network device.
  • the policy issuance module 83 delivers a congestion control policy to the core network device after a predetermined period of time or a predetermined period of time after the traffic restriction module 82 delivers the congestion control policy to the core network device.
  • the control rule function entity does not need to save the user's location information, and does not need to monitor the user location in real time. Even if the user leaves the congested cell, the restriction on the user can be automatically cancelled; and the above-mentioned method for releasing congestion control is used at the scheduled time.
  • the policy issuing module 83 determines that the congestion status of the cell in which the congestion has occurred has been canceled according to the congestion status in the congestion status report sent by the operation and maintenance center device, and the policy sending module 83 still does not The congestion control release policy is released, and the restriction on the users in the congested cell is released, so that the frequency of the cell congestion control service congestion cancellation recovery service re-congestion cycle can be effectively lengthened.
  • FIG. 9 is a schematic structural diagram of another embodiment of a policy charging and control rule function entity according to the present invention.
  • the policy charging and control rule function entity in this embodiment may implement the process of the embodiment shown in FIG. 2 of the present invention.
  • the policy charging and control rule function entity shown in FIG. 9 does not include the policy sending module 83, and may include:
  • the validity period issuance module 84 configured to configure a validity period of the congestion control policy, and send the validity period to the core network device, so that the core network device restores the service quality of the user in the congested cell to the occurrence after the expiration of the validity period.
  • the quality of the service before congestion so that the core network device can release the restriction on the user in the congested cell in time, and can reduce the uncertainty caused by the delivery policy, for example: the loss of the congestion control release policy causes the user to be unable to use
  • the validity period issuance module 84 may send the validity period of the congestion control policy to the core network device when the service restriction module 82 sends the congestion control policy, or may be sent to the core network device. After the congestion control policy is sent, the validity period is sent to the core network device by using a separate message.
  • the embodiment of the present invention does not limit the delivery mode of the congestion control policy.
  • the core network device in the embodiment of the present invention may be a GGSN.
  • the policy charging and control rule function entity provided by the above embodiment implements real-time pairing
  • the user in the cell is restricted, and the restriction on the user in the cell where the congestion occurs is implemented, and no additional equipment is needed, which saves the cost; and the core network does not need to enable the user location reporting function, thereby reducing network performance. Impact.
  • FIG. 10 is a schematic structural diagram of an embodiment of a base station according to the present invention. As shown in FIG. 10, the base station may include: a generating module 1001 and a sending module 1002.
  • the generating module 1001 is configured to generate a congestion status report, where the congestion status report includes a cell identifier, a congestion status of the cell corresponding to the cell identifier, and a user identifier in the cell, where the congestion status report may include a cell of multiple cells.
  • the identifier of the user in the cell may be one or more.
  • the cell identifier and the user identifier in the congestion status report may be carried in the congestion status report in the form of a list or an array. The embodiment of the present invention does not limit the carrying manner of the cell identifier and the user identifier in the congestion status report.
  • the cell identifier may be a Server Area Identity or a Cell Global Identity;
  • the user identifier may be an IMSI; of course, the embodiment of the present invention is not limited thereto, and the cell identifier and the user identifier may also be other identifiers, as long as the cell identifier can be identified. Different cells, the user identifier can identify different users;
  • the congestion status may be congested or not congested, represented by "0” or “1", for example: “0” means no congestion, “1” means congestion; or, congestion status may be non-congested or congested, and congestion is congested Levels, the congestion level can be represented by numbers, for example: “0” means no congestion, “1” means level 1 congestion, "2” means level 2 congestion, etc. The larger the value, the higher the congestion level, the congestion status of the cell.
  • the embodiment of the present invention is not limited thereto, and the congestion may or may not be congested in other manners, as long as congestion can be distinguished; the congestion level can also be distinguished in other manners, for example: English letters or other characters, as long as they can be distinguished
  • the level of congestion can be high or low.
  • the sending module 1002 is configured to send the congestion status report generated by the generating module 1001 to the operation and maintenance center device. Specifically, the sending module 1002 may periodically send a congestion status report, for example, sending in every 10 seconds in a 10-second period. a congestion status report; the sending module 1002 may also send a congestion status report when the congestion status of the cell in the base station changes, for example: occurs in a cell When congestion occurs, a congestion status report is sent; or when a congestion state of a congested cell is released, a congestion status report is sent.
  • the sending module 1002 may directly send the congestion status report to the operation and maintenance center device, or may send the congestion status report to the operation and maintenance center device through the base station controller, for example, the RNC.
  • the foregoing base station implements sending a congestion status report of the cell in the base station to the operation and maintenance center, so that the operation and maintenance center device can send the congestion status report to the policy charging and control rule function entity for policy charging and control rules.
  • the function entity performs congestion control according to the congestion status report, implements congestion control on the cell in real time, and saves cost without adding additional equipment; and the core network does not need to enable user location reporting function, thereby reducing the impact on network performance. .
  • FIG. 11 is a schematic structural diagram of an embodiment of a congestion control system according to the present invention.
  • the congestion control system in this embodiment may implement the process of the embodiment shown in FIG. 3 of the present invention.
  • the congestion control system may include: 1101. An operation and maintenance center device 1102, and a policy charging and control rule function entity 1103.
  • the base station 1101 is configured to generate a congestion status report, and send the generated congestion status report to the operation and maintenance center device 1102.
  • the congestion status report includes a cell identifier, a congestion level, and a user identifier in a cell in which congestion occurs; specifically
  • the base station 1101 can be implemented by the base station of the embodiment shown in FIG. 10 of the present invention;
  • the operation and maintenance center device 1102 is configured to receive a congestion status report of the base station 1101, and send the congestion status report to the policy charging and control rule function entity 1103.
  • the operation and maintenance center device 1 102 can be configured by using the present invention. Implementation of the operation and maintenance center device of the embodiment;
  • the policy charging and control rule function entity 1103 is configured to receive a congestion status report sent by the operation and maintenance center device 1102, and according to the congestion status report, when a cell is congested, restricting users in the congested cell; specifically
  • the policy charging and control rule function entity 1103 can be implemented by the policy charging and control rule function entity of the embodiment shown in FIG. 7, FIG. 8 or FIG.
  • the above congestion control system realizes congestion control of the cell in real time, and does not need to add additional
  • the device saves costs; and the core network does not need to enable the user location reporting function, which reduces the impact on network performance.
  • FIG. 12 is a schematic structural diagram of another embodiment of a congestion control system according to the present invention.
  • the congestion control system in this embodiment can implement the process of the embodiment shown in FIG. 3 of the present invention. .
  • the congestion control system can include: a base station 1201, an OMC 1202, a PCRF entity 1203, a GGSN 1204, and a base station controller 1205.
  • the base station 1201 is configured to generate a congestion status report, and send the generated congestion status report to the OMC 1202.
  • the congestion status report includes a cell identifier, a congestion level, and a user identifier in a cell in which congestion occurs.
  • the base station 1101 may The base station is implemented by the base station controller 1205, and the base station controller 1205 can be a base station controller (Base Station).
  • the congestion status report of the base station 1201 can be reported by the base station controller 1205.
  • Controller hereinafter referred to as: BSC) or RNC;
  • the 0MC 1202 is configured to receive the congestion status report of the base station 1201, and send the congestion status report to the PCRF entity.
  • the 0MC 1202 can be implemented by using the operation maintenance center device of the embodiment shown in FIG. 6 of the present invention;
  • the PCRF entity 1203 is configured to receive a congestion status report sent by the OMC 1202, and according to the congestion status report, when there is congestion in the cell, the user in the congested cell is restricted; specifically, the PCRF entity 1203 may be sent to the GGSN 1204.
  • Generating a congestion control policy the GGSN 1204 is configured to adjust the QoS of the user in the congested cell according to the congestion control policy; the PCRF entity 1203 may be charged by the policy of the embodiment shown in FIG. 7, FIG. 8 or FIG.
  • the control rule function entity is implemented.
  • the congestion control system may further include an SGSN 1206 for performing packet data packet routing and forwarding, encryption and authentication, session management, mobility management, logical link management, bill generation, and output operations. .
  • the above-mentioned congestion control system realizes real-time restriction on users in a congested cell, and does not need to add additional equipment, thereby saving cost; and the core network does not need to enable the user location reporting function. Reduce the impact on network performance.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or the corresponding changes may be located in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.

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Abstract

La présente invention porte sur un procédé de régulation de l'encombrement, un centre d'exploitation et de maintenance (OMC) et une station de base. Le procédé comprend les opérations suivantes : un OMC reçoit un rapport d'état d'encombrement provenant d'une station de base (101); le rapport d'état d'encombrement est envoyé à une entité à fonction de règles de commande de politique et de facturation (PCRF) (102), pour que l'entité PCRF régule l'encombrement conformément au rapport d'état d'encombrement. La présente invention permet une régulation de l'encombrement en temps réel, et ne nécessite pas de dispositifs supplémentaires, ce qui réduit les coûts. En outre, il n'est pas nécessaire que le cœur de réseau déclenche une fonction de rapport de localisation d'utilisateur, et en conséquence l'impact sur les capacités du réseau est réduit.
PCT/CN2010/079284 2009-12-09 2010-11-30 Procédé de régulation de l'encombrement, centre d'exploitation et de maintenance et station de base WO2011069422A1 (fr)

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ES10835457.2T ES2685303T3 (es) 2009-12-09 2010-11-30 Método de control de congestión y centro de mantenimiento de operaciones
EP18175280.9A EP3461168B1 (fr) 2009-12-09 2010-11-30 Contrôle de congestion
EP10835457.2A EP2512176B1 (fr) 2009-12-09 2010-11-30 Procédé de régulation de l'encombrement et centre d'exploitation et de maintenance

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CN101711041B (zh) 2012-10-17
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