WO2016065841A1 - 接入网拥塞控制方法、基站设备及策略及计费规则功能网元 - Google Patents

接入网拥塞控制方法、基站设备及策略及计费规则功能网元 Download PDF

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WO2016065841A1
WO2016065841A1 PCT/CN2015/075773 CN2015075773W WO2016065841A1 WO 2016065841 A1 WO2016065841 A1 WO 2016065841A1 CN 2015075773 W CN2015075773 W CN 2015075773W WO 2016065841 A1 WO2016065841 A1 WO 2016065841A1
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Prior art keywords
user equipment
radio frequency
state
frequency resource
over
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PCT/CN2015/075773
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English (en)
French (fr)
Inventor
周雷
范宇群
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华为技术有限公司
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Priority to EP15856138.1A priority Critical patent/EP3171629B1/en
Priority to JP2017508673A priority patent/JP6425797B2/ja
Priority to KR1020177006905A priority patent/KR101921160B1/ko
Publication of WO2016065841A1 publication Critical patent/WO2016065841A1/zh
Priority to US15/458,763 priority patent/US10187819B2/en

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    • 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
    • H04W28/0289—Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1403—Architecture for metering, charging or billing
    • H04L12/1407—Policy-and-charging control [PCC] architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/74—Admission control; Resource allocation measures in reaction to resource unavailability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/83—Admission control; Resource allocation based on usage prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66—Policy and charging system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/80—Rating or billing plans; Tariff determination aspects
    • H04M15/8016—Rating or billing plans; Tariff determination aspects based on quality of service [QoS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/80—Rating or billing plans; Tariff determination aspects
    • H04M15/8027—Rating or billing plans; Tariff determination aspects based on network load situation
    • 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
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0284—Traffic management, e.g. flow control or congestion control detecting congestion or overload during communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/80—Actions related to the user profile or the type of traffic
    • H04L47/805—QOS or priority aware
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/82—Miscellaneous aspects
    • H04L47/822—Collecting or measuring resource availability data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an access network congestion control method, a base station device, and a policy and charging rule function network element.
  • Wireless communication has been widely used around the world, greatly facilitating communication between people. Wireless communication can provide a variety of services, including voice calls and web downloads.
  • a typical wireless communication system or network such as a Long Term Evolution (LTE) system, provides wireless communication for a plurality of user equipments (User Equipments, UEs) in a cell through a base station device, and the wireless connection is performed. It is common to use a shared wireless spectrum.
  • LTE Long Term Evolution
  • the base station device uses the same radio frequency band to provide wireless data communication services for multiple (two are shown) UEs, and the data downloaded by the UE from the server passes through the Internet and the packet network gateway.
  • the Packet Data Network Gateway (P-GW) and the Serving Gateway (S-GW) arrive at the base station device and are transmitted to the UE via the base station device.
  • LTE systems Unlike previous second-generation wireless communication systems, such as Global System for Mobile Communication (GSM), LTE systems only support Packet Switching (PS) connections and no longer support Circuit Switching (CS). connection.
  • PS Packet Switching
  • CS Circuit Switching
  • the CS connection needs to reserve resources to ensure the transmission of data. Even if there is no data to be transmitted at the transmitting end, the reserved resources cannot be released.
  • the PS connection does not need to reserve resources, so the utilization efficiency of the wireless spectrum can be improved.
  • QoS Quality of Service
  • the LTE system implements different processing by mapping different services to different tunnels.
  • GBR Guaranteed Bit Rate
  • QCI QoS Class Identifier
  • the average rate is much lower, so that the call receiver will obviously feel the delay of the call, and the voice is unclear, and the call experience is also much worse. If the communication rate is lower than the minimum rate requirement and the traffic cannot be transmitted smoothly, the access network will be congested.
  • the embodiment of the invention provides an access network congestion control method, a base station device, and a policy and charging rule function network element, so as to control the access network when congestion occurs, and ensure communication is smooth.
  • an embodiment of the present invention provides a method for controlling congestion of an access network, including:
  • the congestion report includes user equipment information in a congested state of at least one user equipment, user equipment information in an over-service state, and user equipment in a congested state. Radio frequency resource information occupied by user equipments that are in an over-service state;
  • the radio frequency resource adjustment policy is performed for the user equipment in a congested state and the user equipment in an over-service state.
  • the method before the sending the congestion report to the PCRF, the method further includes:
  • the part of the over-the-service user equipment exceeds the corresponding restricted radio frequency resource according to the radio frequency resource information occupied by the user equipment in the congestion state and the user equipment in the over-service state, according to the setting An algorithm is allocated to the user equipment in a congested state;
  • sending a congestion report to the PCRF including:
  • the result of the radio frequency resource pre-adjustment includes a user setting that is still in a congested state after pre-adjustment And the user equipment information that is still in the service state, and the radio frequency resource information that is used by the pre-adjusted user equipment that is still in the congestion state and the user equipment that is in the service state.
  • the receiving, by the PCRF, a radio frequency resource adjustment policy includes:
  • Performing the radio frequency resource adjustment policy for the user equipment in the congestion state and the user equipment in the over-service state including:
  • the user equipment in the congested state and the The radio frequency resource information occupied by the user equipment in the over-service state is the average rate of the user equipment in the congested state and the user equipment in the over-service state, or the congestion degree of the user equipment in the congested state and Characterizing the over-service level of the user equipment in an over-service state;
  • the congestion level the average rate of the user equipment in the congestion state/the minimum rate
  • the over-service level the average rate/limit rate of the user equipment in the over-service state
  • the rate limit is determined from at least one rate limit according to a selection policy of the PCRF
  • an embodiment of the present invention provides a method for controlling congestion of an access network, including:
  • the congestion report includes user equipment information in a congested state of at least one user equipment, user equipment information in an over-service state, user equipment in a congested state, and an over-service state Radio frequency resource information occupied by the user equipment;
  • the radio frequency resource adjustment policy is used to indicate that the base station device allocates the part of the over-the-service user equipment that exceeds the corresponding restricted radio frequency resource to the The user equipment in the congested state; or the transmission of the service flow of the user equipment with the lowest priority among the user equipments in the congested state.
  • an embodiment of the present invention provides a base station device, including:
  • a first sending unit configured to send a congestion report to the policy and charging rule function network element PCRF, where the congestion report includes user equipment information in a congestion state of at least one user equipment and user equipment information in an over service state, And radio frequency resource information occupied by the user equipment in the congested state and the user equipment in the over-service state;
  • a first receiving unit configured to receive a radio frequency resource adjustment policy sent by the PCRF
  • the first execution unit is configured to perform the radio frequency resource adjustment policy for the user equipment in the congestion state and the user equipment in the over-service state.
  • the base station device further includes:
  • An allocating unit configured to use the user equipment in the over-service state to exceed the corresponding restricted radio frequency resource according to the radio frequency resource information occupied by the user equipment in the congestion state and the user equipment in the over-service state Partly, allocating to the user equipment in a congested state according to a setting algorithm;
  • the first sending unit is specifically configured to:
  • the result of the pre-adjustment of the radio frequency resource includes user equipment information that is still in a congested state after being pre-adjusted, and is still in an over-service state.
  • the first receiving unit is specifically configured to: receive an adjustment expected result consultation request information sent by the PCRF, where the adjustment expected result consultation request information includes the radio frequency resource adjustment policy;
  • the first execution unit includes:
  • a second execution unit configured to perform an expected adjustment on the radio frequency resource adjustment policy
  • a second sending unit configured to send the result of the expected adjustment to the PCRF
  • a second receiving unit configured to receive a policy execution indication sent by the PCRF according to the result of the expected adjustment
  • the second execution unit is further configured to perform a radio frequency resource adjustment policy indicated by the policy execution indication for the user equipment in a congested state and the user equipment in an over-service state.
  • the user equipment in the congested state and the The radio frequency resource information occupied by the user equipment in the over-service state is the average rate of the user equipment in the congested state and the user equipment in the over-service state, or the congestion degree of the user equipment in the congested state and Characterizing the over-service level of the user equipment in an over-service state;
  • the congestion level the average rate of the user equipment in the congestion state/the minimum rate
  • the over-service level the average rate/limit rate of the user equipment in the over-service state
  • the rate limit is determined from at least one rate limit according to a selection policy of the PCRF.
  • the embodiment of the present invention provides a policy and charging rule function network element, including:
  • a receiving unit configured to receive a congestion report sent by the base station device, where the congestion report includes user equipment information in a congestion state of at least one user equipment, user equipment information in an over-service state, and user equipment in a congestion state, and Radio frequency resource information occupied by user equipment in an over-service state;
  • a generating unit configured to generate, according to the congestion report and the user service policy, a policy for performing radio frequency resource adjustment in the user equipment in the congestion state and the user equipment in the over-service state;
  • a sending unit configured to send the radio frequency resource adjustment policy to the base station device.
  • the radio frequency resource adjustment policy is used to indicate that the base station device exceeds the corresponding restricted radio frequency resource by the user equipment that is in an over-service state. And transmitting to the user equipment in the congested state; or stopping the transmission of the service flow of the user equipment with the lowest priority among the user equipments in the congested state.
  • an access network congestion control method, a base station device, and a policy and charging rule function network element can be used for a user equipment in a congested state when the radio access network is congested.
  • the radio frequency resources of the user equipment in the over-service state are reallocated to ensure smooth communication.
  • FIG. 1 is a schematic diagram of a wireless communication system
  • 2a is a schematic flowchart of a method for controlling congestion of an access network according to an embodiment of the present invention
  • FIG. 2b is a schematic flow chart of an access network congestion control method further exemplified in the embodiment shown in FIG. 2a;
  • FIG. 3 is a schematic flowchart of another access network congestion control method according to an embodiment of the present disclosure.
  • FIG. 3b is a schematic flowchart of an access network congestion control method further illustrating the embodiment shown in FIG. 3a;
  • FIG. 4 is a schematic flowchart of still another method for controlling congestion of an access network according to an embodiment of the present disclosure
  • FIG. 4b is a schematic flow chart of an access network congestion control method further exemplified in the embodiment shown in FIG. 4a;
  • FIG. 5 is a schematic flowchart of still another method for controlling congestion of an access network according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a base station device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another base station device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of still another base station device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a function and charging rule function network element PCRF according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of still another base station device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another PCRF according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for controlling congestion of an access network according to an embodiment of the present invention, where the method includes the following steps:
  • Step S101 Send a congestion report to the policy and charging rule function network element PCRF, where the congestion report includes user equipment information in a congested state of at least one user equipment, user equipment information in an over-service state, and a congestion state. Radio frequency resource information occupied by the user equipment and the user equipment in an over-service state.
  • the radio frequency resource allocation of each user equipment may be uneven. If any user equipment transmits the service stream, the required If the minimum radio frequency resource cannot be satisfied, the uplink/downlink of the access network is prone to congestion, that is, the user equipment cannot smoothly transmit data to the base station device, or the user equipment cannot smoothly receive data from the base station device.
  • the radio frequency resources allocated by a base station device are fixed, and some user equipments are congested, that is, the currently occupied radio frequency resources are lower than the minimum radio frequency resources, that is, the user equipments are in a congested state, and usually there is another Some user equipments occupy radio frequency resources higher than actually required, or radio frequency resources higher than the system-defined limits, that is, these user equipments are in an over-service state, and the minimum and limited radio frequency resources may be specified by the PCRF.
  • the congestion report of the base station device is sent to the PCRF, and the congestion report includes user equipment information in a congested state and user equipment information in an over-service state, and radio frequency resource information occupied by the user equipment.
  • the PCRF receives the congestion report, and the PCRF functions as a policy and charging rule function.
  • the network element has a certain user service policy for each user equipment of a base station device, for example, the priority of the user equipment, and the highest radio frequency resource of each user equipment. Then, the PCRF generates a policy for performing radio frequency resource adjustment in the user equipment in the congested state and the user equipment in the over-service state according to the congestion report and the user service policy, and sends the radio frequency resource adjustment policy to the base station device.
  • Step S102 Receive a radio frequency resource adjustment policy sent by the PCRF.
  • the base station device receives the radio frequency resource adjustment policy sent by the PCRF.
  • Step S103 Perform the radio frequency resource adjustment policy for the user equipment in the congestion state and the user equipment in the over-service state.
  • the base station device receives the radio frequency resource adjustment policy sent by the PCRF, and performs the policy on the user equipment in the congested state and the user equipment in the over-service state, that is, all the radio frequency resources of the user equipment in the over-service state are allocated to the base station device.
  • a user equipment in a congested state so that the user equipment in a congested state can smoothly perform service flow transmission, and control congestion of multiple user equipments served by the entire base station equipment without being in a service state.
  • the traffic flow of the device has a significant impact.
  • FIG. 2b is a schematic flowchart of an access network congestion control method further exemplified in the embodiment shown in FIG. 2a.
  • a radio frequency resource is represented as an average rate, because the rate can basically indicate the allocated How much is the radio frequency resource.
  • C B ⁇ log(1+S/N), where C is the communication rate or throughput of the user equipment, B is the allocated radio frequency resource, and S/N is the signal-to-noise ratio due to the existing
  • the wireless communication system has stipulated that the base station and the user equipment need to measure the uplink and downlink channel conditions, that is, the signal to noise ratio S/N, so that the radio frequency resource allocated by the user equipment can be known according to the communication rate.
  • the PCRF needs to send the priority of the different streams to the base station device, the minimum rate (or the base rate, etc.) required for the service experience served by the stream, and the rate limit rate set for the stream if necessary.
  • the stream here may be a traffic stream, such as the one specified in the 3GPP protocol (e.g., TS 23.203), the priority of the stream including the priority level corresponding to the QCI, or the relative priority of multiple streams of the same QCI. Grade and so on.
  • the minimum rate and the rate limit may be pre-defined by the PCRF and stored in the base station device, or may be sent to the base station device by signaling together with the priority of the stream.
  • the base station device After receiving the foregoing parameters sent by the PCRF, the base station device detects whether the flow has been congested according to the value of the minimum rate.
  • the radio access network resources required for transmitting user data exceed the capacity actually provided by the radio access network, the user plane congestion of the radio access network may be considered to occur.
  • the radio access network needs to ensure that the user equipment service data transmission has a certain rate guarantee to avoid the occurrence of the aforementioned call delay, etc., and this rate is served by the guarantee stream transmitted by the PCRF to the base station equipment.
  • the minimum rate required for the business experience If the transmission rate of the user equipment is lower than the minimum rate during the actual service, it may be determined that the flow has congestion.
  • the base station device when providing a service of a PS-connected non-GBR service, since the system does not provide a rate guarantee like GBR, the base station device allocates the shared radio frequency resource to the cell.
  • Different user equipments are considered to be allocated based on a certain fairness principle, such as the proportional fairness scheduling (PFS) algorithm and the round-robin algorithm studied in many literatures.
  • PFS proportional fairness scheduling
  • the result of these algorithmic scheduling is that the frequency resources are relatively fairly distributed among different UEs, for example, a wireless communication system with a bandwidth of 10 MHz, and when serving 10 UEs, each UE is evenly allocated to a frequency resource of about 1 MHz.
  • the 19 UEs are all transmitting media services, and the minimum transmission rate requirement of the media is 500 kbps, the video played on the UEs with the serial numbers of 3, 16, 17, 18 will inevitably appear to be stuck; on the contrary, The two UEs with serial numbers 12, 13 can even enable smoother playback of higher resolution streaming programs on larger screen mobile devices such as tablets or laptops.
  • the base station device needs to report the congestion report to the PCRF, including: a list of the congestion user equipment, in the system simulation example, the user equipments with the sequence numbers 3, 16, 17, 18, and their rates, that is, 350.5, 346.5, 448.3, 397.9, in kbps; over-served list of user equipment and its rate.
  • the over-service user equipment (or over-rate user equipment) determination method can be determined according to the restriction rate. For example, when the PCRF setting limit rate is 1.4 Mbps, the sequence numbers are 6, 12, 13 respectively.
  • the UE belongs to the service user equipment; or the PCRF separately sets the rate limit for each UE, if the UE The limiting rate of 5 is 800 kbps, and the limiting rate of UE 7 is 1 Mbps. Then these two UEs also belong to the over-serving user equipment. According to the selection policy determined by the PCRF, the over-serving user equipment judgment may also be judged together with the flow priority. For example, when the PCRF setting restriction rate is 1.4 Mbps, if the flow priority of the UE 1 is compared with other UEs, for example, congestion has occurred. The UEs 3, 16, 17, and 18 are all lower. Because the rate of the UE 1 is very close to 1.4 Mbps, the UE 1 can also be reported as an over-service user equipment. Or when all the user equipments do not exceed the limit rate, the user equipment closest to the rate limit may be selected as the over-service user equipment to report, or the PCRF new selection policy may be requested to determine the over-service user equipment.
  • the measurement of the uplink average rate of the UE by the base station device can be directly obtained from the received data.
  • the measurement of the downlink average rate of the UE can be obtained by the UE feedback result, or can be determined by the radio link control (RLC) acknowledgement mode.
  • RLC radio link control
  • the RLC transmitting end of the base station device calculates the downlink average rate by checking the number of transmitted data that has received the acknowledgement and subtracting the redundant information such as the signaling load.
  • the PCRF After receiving the congestion report of the base station device, the PCRF adaptively adjusts the policy of each flow according to the service experience requirements of the user equipment, and then sends the policy to the base station device to maximize the satisfaction of all user equipments in the cell.
  • the goal For example, for the cell of the foregoing 19 UE, the PCRF may explicitly request the UE, and the UE to limit the rate to the rate limit of 1.4 Mbps by sending the policy signaling to the base station device.
  • the priority of the UE 1 is relatively low, and the UE 1 may further reduce its priority.
  • the policy signaling sent by the PCRF may use the UE 3 and 16 as the first level, the UE 18 as the second level, and the UE 17 as the second level.
  • the third level is to require the base station device to preferentially increase the rate of the UE 3, 16, and improve the UE 18 experience under the premise that the radio resources are sufficient, and the UE 3 and 16 can achieve the minimum rate of 500 kbps, and the UE 17 may not adjust the rate. .
  • the PCRF may require the base station device to improve the service experience of the UE 16, 17 and 18 first, only if the minimum rate of the service data flows of the three UEs is satisfied.
  • the base station device may be required to stop the service of the UE 3 with a lower priority of the flow, and first ensure that the UE 16, 17, 18 can achieve the user satisfaction effect.
  • the base station device may also be required to evenly allocate redundant radio frequency resources of the over-serving user equipment to the UEs 3, 16, 17, 18.
  • the base station device After the base station device receives the PCRF adjustment policy, there are multiple ways to implement the PCRF. begging.
  • the communication rate of all other user equipments can be improved by limiting the communication rate of the serving user equipment at the base station equipment, but the effect of controlling congestion is not good because many user equipments, such as UE0, 2, 4, 8, 9, 10, 11 14,15, there is no congestion phenomenon, and the excess wireless frequency resources of the service user equipment are also allocated to these user equipments, which can significantly reduce the improvement effect on the congested user equipment, such as UE 16, 17, and 18. Since the base station device is responsible for allocating radio frequency resources among all user equipments, the base station equipment can implement the orientation adjustment of the excess radio frequency resources of the serving user equipment.
  • the base station device when the base station device adopts a round-robin scheduling algorithm, the probability of the allocated user equipment being allocated to the resource may be appropriately increased, and the probability that the service user equipment is allocated to the resource is reduced, and the probability that the other user equipment allocates the resource remains unchanged.
  • the base station device adopts a weighted PFS method, and applies a smaller weight to UEs that need to limit the rate, such as UE 6, 12, and 13, thereby reducing the frequency resources allocated by the UEs;
  • the rate-up UE such as the UE 16, 17, 18, applies a larger weight, thereby increasing the frequency resources that the UE can allocate, while maintaining the weights of other user equipments, thereby ensuring the service experience of the congested user equipment.
  • the rate of service user equipment can still reach or approach the limit rate, such as 1.4Mbps
  • the service experience of these user equipments will not be significantly reduced, while the communication of other user equipments is not Affected.
  • the limit rate such as 1.4Mbps
  • the service experience of these user equipments will not be significantly reduced, while the communication of other user equipments is not Affected.
  • the user who has served the user device is watching a movie on the screen of the mobile phone
  • the screen of the mobile phone is not large, the resolution of the source of the media program is appropriately reduced, and the human eye usually does not see a difference, so the user experience does not have a user experience.
  • the transmission rate requirements can be reduced.
  • a certain reduction in the transfer rate will not make these users unsatisfied.
  • the foregoing method is applicable to both uplink wireless communication and downlink wireless communication, and the same is applicable to the case where multiple services are enabled for the same user equipment, that is, multiple streams on the same UE.
  • the radio frequency resource of the user equipment in the congested state and the user equipment in the over-service state may be performed in the case that the radio access network is congested. Redistribution to ensure smooth communication.
  • FIG. 3 is a schematic flowchart of another access network congestion control method according to an embodiment of the present invention. The method includes the following steps:
  • Step S201 The user equipment in the over-service state exceeds the corresponding limit according to the radio frequency resource information occupied by the user equipment in the congestion state and the user equipment in the over-service state.
  • the part of the radio frequency resource is allocated to the user equipment in the congested state according to a setting algorithm.
  • the measured average rate of the user equipment such as the UE 3 in the foregoing system simulation example does not meet the minimum rate requirement.
  • the user equipment in the congestion state and the service state may be performed. Resource pre-adjustment to ease congestion on its own.
  • the pre-adjustment of the base station equipment can reduce the workload of the PCRF and control congestion in time. Specifically, the base station device, according to the radio frequency resource information occupied by the user equipment in the congested state and the user equipment in the over-service state, exceeds the portion of the radio resource that is in the over-restricted state by the base station device, according to the The algorithm is assigned to the user equipment in the congested state. The specific algorithm has been described in the previous embodiments.
  • Step S202 the result of the pre-adjustment of the radio frequency resource is sent to the PCRF as a congestion report, where the result of the pre-adjustment of the radio frequency resource includes user equipment information that is still in a congested state after being pre-adjusted, and is still in service.
  • the base station device may send the pre-adjustment result as a congestion report to the PCRF, so that the PCRF further adjusts according to the pre-adjustment result and the user service policy to generate an adjustment policy. And sent to the base station device.
  • the radio frequency resource information occupied by the user equipment in the congested state and the user equipment in the over-service state may be the average rate of the user equipment in the congested state and the user equipment in the over-service state, or the user in the congested state.
  • the degree of congestion the average rate/minimum rate of the user equipment in a congested state
  • Service Level Average rate/limit rate of user equipment that is in an over-service state.
  • the rate limit is determined by the base station device from at least one rate limit according to a selection policy of the PCRF.
  • the PCRF can obtain multiple media rates of the same media content saved on the media server, such as HD, SD, and low resolution, from the application function (AF). rate. These different rates can be sent to the base station device to provide identification of the served users.
  • the base station device may perform different priority identification for the user equipment that transmits the DASH service flow, and preferentially report the user equipment whose rate is higher than the high-definition media rate as the over-service user.
  • the dynamic range of the communication rate of the user equipment is relatively large, the number of transmission signaling bits required is relatively high, and the number of signaling bits to be reported by the base station equipment can be effectively reduced by defining the degree of congestion and the degree of over-service.
  • Step S203 Receive a radio frequency resource adjustment policy sent by the PCRF.
  • Step S204 Perform the radio frequency resource adjustment policy for the user equipment that is still in a congested state and the user equipment that is still in an over-service state.
  • the base station device After receiving the adjustment policy of the PCRF, the base station device performs resource adjustment in the user equipment that is still in the congestion state after the pre-adjustment and the user equipment that is in the service state, to further control the congestion of the user equipment.
  • FIG. 3b is a schematic flowchart of an access network congestion control method further exemplified in the embodiment shown in FIG. 3a.
  • the PCRF sends the priority of different flows to the base station device, the minimum rate required for the service experience served by the flow, and the rate limit set by the flow if necessary.
  • the base station device After receiving the foregoing parameters sent by the PCRF, the base station device detects whether the flow has been congested according to the value of the minimum rate.
  • the measured average rate of the user equipment such as the UE 3 in the foregoing system simulation example does not meet the minimum rate requirement.
  • the congestion may be relieved first.
  • the base station device first detects whether there is a service user, such as UE 6, 12, 13.
  • the base station device may first reduce the rate of the UE 6, 12, 13 to the limiting rate of 1.4 Mbps by using the foregoing rate adjustment method, such as a weighted proportional fair scheduling algorithm, and the frequency resources of the three UEs are allocated to the UE by weight adjustment.
  • Congested user equipment such as 3, 16, 17, and 18. Congestion may be eliminated or only mitigated.
  • the transmission rate of the service data stream on some user equipments still does not reach the required minimum rate.
  • the base station device needs to report the adjusted result to the PCRF. If the congestion phenomenon is only alleviated, and the average rate of some user equipments still fails to meet the requirements, the base station equipment reports the user equipments that are still in the congestion state and the service state and their current average rate.
  • the PCRF After the PCRF receives the report from the base station device, the PCRF needs to perform the same method as the foregoing embodiment.
  • the base station device may be required to stop the service of the UE 3 with a lower priority of the flow, and the UE 16, 17, 18 can ensure the satisfaction of the user. .
  • an access network congestion control method can be used for a user equipment in a congested state and a user in an over-service state when the radio access network is congested.
  • the radio frequency resource of the device is redistributed to ensure smooth communication; and the base station device pre-adjusts the resource when congestion occurs, which can control congestion in time and reduce the workload of the PCRF.
  • FIG. 4 is a schematic flowchart of still another method for controlling congestion of an access network according to an embodiment of the present invention. The method includes the following steps:
  • Step S301 Send a congestion report to the policy and charging rule function network element PCRF, where the congestion report includes user equipment information in a congested state of at least one user equipment, user equipment information in an over-service state, and a congestion state. Radio frequency resource information occupied by the user equipment and the user equipment in an over-service state.
  • Step S301 is the same as step S101 of the embodiment shown in FIG. 2a, and details are not described herein again.
  • Step S302 Receive an adjustment expected result consultation request message sent by the PCRF, where the adjustment expected result consultation request information includes the radio frequency resource adjustment policy.
  • the adjustment expected result consultation request information includes one or more radio frequency resource adjustment policies, specifically including user equipments that need to adjust radio frequency resources, and reduces the number of user equipment radio frequency resources in an over-service state, for example, it is desirable to The radio frequency resource allocated by the user equipment is reduced to 50% now, and the base station device predicts the possible rate of the user equipment in the congested state and the user equipment in the over-service state after the resource is transferred to the user equipment in the congested state.
  • the adjustment expected result consultation request information is used to instruct the base station device to perform an expected adjustment according to the one or more radio frequency resource adjustment policies.
  • the PCRF sends an adjustment result consultation request to the base station device, and inquires the base station device to perform the expected effect of the radio frequency resource adjustment in the user equipment in the congested state and the user equipment in the over-service state.
  • FIG. 4b is a schematic flowchart of an access network congestion control method further exemplified in the embodiment shown in FIG. 4a.
  • the PCRF can obtain multiple media rates of the same media content saved on the media server from the AF, such as high definition, standard definition, and low resolution rates. These different rates can be sent to the base station device to provide identification of the served users.
  • the base station device may perform different priority identification for the user equipment that transmits the DASH service flow, and preferentially report the user equipment whose rate is higher than the high-definition media rate as the over-service user.
  • the PCRF may generate different radio frequency resource adjustment strategies for different rate limiting or different user service policies.
  • Step S303 performing an expected adjustment on the radio frequency resource adjustment policy.
  • Step S304 sending a result of the expected adjustment to the PCRF.
  • the base station device predicts the possible rate of each user equipment after the radio resource adjustment according to the scheduling algorithm used by the base station and the current actual channel condition of the user equipment adjusted by the radio frequency resource, and sends the rate to the PCRF. As shown in FIG. 4b, the base station device transmits the expected adjustment result to the PCRF.
  • Step S305 Receive a policy execution indication sent by the PCRF according to the result of the expected adjustment.
  • the PCRF may perform some adjustments to the radio frequency resource adjustment policy according to the expected adjustment result sent by the base station device, or the PCRF sends the radio frequency resource adjustment policy to the base station device in step S302, and the PCRF sends a policy execution indication to indicate the base station device. Which radio frequency resource adjustment strategy is implemented.
  • Step S306 performing a radio frequency resource adjustment policy indicated by the policy execution indication for the user equipment in the congestion state and the user equipment in the over-service state.
  • the base station device performs a radio frequency resource adjustment policy indicated by the policy execution indication sent by the PCRF.
  • the radio frequency resource of the user equipment in the congested state and the user equipment in the over-service state may be performed in the case that the radio access network is congested. Redistributing to ensure communication is smooth; and the base station device receives the PCRF to adjust the expected result of the generated one or more radio frequency resource adjustment policies, and performs the expected adjustment of the radio frequency resource adjustment policy, and the PCRF determines the final adjustment result according to the expected adjustment result.
  • the radio frequency resource adjustment strategy performed by the base station device can make resource adjustment more accurate.
  • FIG. 5 is a schematic flowchart of still another access network congestion control according to an embodiment of the present invention. The method includes the following steps:
  • Step S401 Receive a congestion report sent by the base station device, where the congestion report includes user equipment information in a congestion state of at least one user equipment, user equipment information in an over-service state, and user equipment in a congestion state Radio frequency resource information occupied by user equipment in the service state.
  • the radio frequency resource allocation of each user equipment is uneven. If any user equipment transmits the service stream, the minimum required is required. If the radio frequency resource cannot be satisfied, the uplink/downlink of the access network is prone to congestion, that is, the user equipment cannot smoothly transmit data to the base station device, or the user equipment cannot smoothly receive data from the base station device.
  • the radio frequency resources allocated by a base station device are fixed, and some user equipments are congested, that is, the currently occupied radio frequency resources are lower than the minimum radio frequency resources, that is, the user equipments are in a congested state, and usually there is another Some user equipments occupy radio frequency resources higher than actually required, or radio frequency resources higher than the system-defined limits, that is, these user equipments are in an over-service state, and the minimum and limited radio frequency resources may be specified by the PCRF.
  • the base station device sends a congestion report to the PCRF, where the congestion report includes user equipment information in a congested state and user equipment information in an over-service state, and radio frequency resource information occupied by the user equipment in a congested state and the user equipment in an over-service state.
  • Step S402 Generate a policy for performing radio frequency resource adjustment in the user equipment in the congestion state and the user equipment in the over-service state according to the congestion report and the user service policy.
  • the PCRF receives the congestion report, and the PCRF functions as a policy and charging rule function.
  • the network element has a certain user service policy for each user equipment of a base station device, for example, the priority of the user equipment, and the highest radio frequency resource of each user equipment.
  • the PCRF generates a policy for performing radio frequency resource adjustment in the user equipment in the congested state and the user equipment in the over-service state according to the congestion report and the user service policy.
  • the radio frequency resource adjustment policy is used to indicate that the base station device allocates the radio frequency resource occupied by the user equipment in the over-service state to the radio frequency resource of the restricted radio frequency resource, to the at least one user.
  • Step S403 the radio frequency resource adjustment policy is sent to the base station device.
  • the PCRF sends the radio frequency resource adjustment policy to the base station device.
  • the base station device receives the radio frequency resource adjustment policy sent by the PCRF, and performs the policy for the user equipment in the congested state and the user equipment in the over-service state, that is, a part of the user equipments that are in the service state
  • the remaining radio frequency resources are allocated to the user equipment in the congested state, so that the user equipment in the congested state can smoothly perform service flow transmission, and control congestion of multiple user equipments served by the entire base station equipment without It has a significant impact on the traffic flow of the user equipment in the over-service state.
  • the radio frequency resource of the user equipment in the congested state and the user equipment in the over-service state may be performed in the case that the radio access network is congested. Redistribution to ensure smooth communication.
  • FIG. 6 is a schematic structural diagram of a base station device according to an embodiment of the present invention.
  • the base station device 1000 includes:
  • the first sending unit 11 is configured to send a congestion report to the policy and charging rule function network element PCRF, where the congestion report includes user equipment information in a congestion state of at least one user equipment and user equipment information in an over service state. And radio frequency resource information occupied by the user equipment in the congested state and the user equipment in the over-service state.
  • the radio frequency resource allocation of each user equipment may be uneven. If any user equipment transmits the service stream, the required If the minimum radio frequency resource cannot be satisfied, the uplink/downlink of the access network is prone to congestion, that is, the user equipment cannot smoothly transmit data to the base station device, or the user equipment cannot smoothly receive data from the base station device.
  • the radio frequency resources allocated by a base station device are fixed, and some user equipments are congested, that is, the currently occupied radio frequency resources are lower than the minimum radio frequency resources, that is, the user equipments are in a congested state, and usually there is another Some user equipments occupy radio frequency resources higher than actually required, or radio frequency resources higher than the system-defined limits, that is, these user equipments are in an over-service state, and the minimum and limited radio frequency resources may be specified by the PCRF.
  • the first sending unit 11 sends the congestion report of the base station device to the PCRF, where the congestion report includes user equipment information in a congested state, user equipment information in an over-service state, and radio frequency resource information occupied by the user equipment.
  • the PCRF receives the congestion report, and the PCRF functions as a policy and charging rule function.
  • the network element has a certain user service policy for each user equipment of a base station device, for example, the priority of the user equipment, and the highest radio frequency resource of each user equipment.
  • Etc. the PCRF generates the user equipment in the congested state and the user equipment in the over-service state according to the congestion report and the user service policy.
  • the radio frequency resource adjustment policy is sent to the base station device.
  • the first receiving unit 12 is configured to receive a radio frequency resource adjustment policy sent by the PCRF.
  • the first receiving unit 12 receives the radio frequency resource adjustment policy sent by the PCRF.
  • the first execution unit 13 is configured to perform the radio frequency resource adjustment policy for the user equipment in the congestion state and the user equipment in the over service state.
  • the first receiving unit 12 receives the radio frequency resource adjustment policy sent by the PCRF, and the first executing unit 13 executes the policy for the user equipment in the congested state and the user equipment in the over-service state, that is, a part of the user in the over-service state.
  • the excess radio frequency resource of the device is allocated to the user equipment in the congested state, so that the user equipment in the congested state can smoothly perform service flow transmission, and control congestion of multiple user equipments served by the entire base station device without It can have a significant impact on the traffic flow of user equipment that is in an over-service state.
  • the base station device can reallocate the radio frequency resources of the user equipment in the congested state and the user equipment in the over-service state in the case that the radio access network is congested, and ensure Communication is smooth.
  • FIG. 7 is a schematic structural diagram of another base station device according to an embodiment of the present disclosure.
  • the base station device 2000 includes:
  • the allocating unit 21 is configured to: according to the radio frequency resource information occupied by the user equipment in the congestion state and the user equipment in the over-service state, the user equipment in the over-service state exceeds the part of the corresponding restricted radio frequency resource, according to A setting algorithm is assigned to the user equipment in a congested state.
  • the measured average rate of the user equipment such as the UE 3 in the foregoing system simulation example does not meet the minimum rate requirement.
  • the user equipment in the congestion state and the service state may be performed. Resource pre-adjustment to ease congestion on its own.
  • the pre-adjustment of the base station equipment can reduce the workload of the PCRF and control congestion in time. Specifically, the allocating unit 21, according to the radio frequency resource information occupied by the user equipment in the congestion state and the user equipment in the over-service state, exceeds the part of the corresponding limited radio frequency resource according to the user equipment in the over-service state.
  • a setting algorithm is assigned to the user equipment in a congested state.
  • a first sending unit 22 configured to send, as a congestion report, a result of the radio frequency resource pre-adjustment to the PCRF, where the result of the radio frequency resource pre-adjustment includes a pre-adjustment still User equipment information in a congested state and user equipment information still in an over-service state, and radio frequency resource information occupied by the pre-adjusted user equipment and the over-service state user equipment that are still in a congested state.
  • the first sending unit 22 needs to send the pre-adjustment result as a congestion report to the PCRF, so that the PCRF performs further adjustment according to the pre-adjustment result and the user service policy, after the base station device performs the foregoing pre-adjustment.
  • An adjustment policy is generated and sent to the base station device.
  • the radio frequency resource information occupied by the user equipment in the congested state and the user equipment in the over-service state may be the average rate of the user equipment in the congested state and the user equipment in the over-service state, or the user in the congested state.
  • the degree of congestion the average rate/minimum rate of the user equipment in a congested state
  • Service Level Average rate/limit rate of user equipment that is in an over-service state.
  • the rate limit is determined by the base station device from at least one rate limit according to a selection policy of the PCRF.
  • the PCRF can obtain multiple media rates of the same media content saved on the media server, such as HD, SD, and low resolution, from the application function (AF). rate. These different rates can be sent to the base station device to provide identification of the served users.
  • the base station device may perform different priority identification for the user equipment that transmits the DASH service flow, and preferentially report the user equipment whose rate is higher than the high-definition media rate as the over-service user.
  • the dynamic range of the communication rate of the user equipment is relatively large, the number of transmission signaling bits required is relatively high, and the number of signaling bits to be reported by the base station equipment can be effectively reduced by defining the degree of congestion and the degree of over-service.
  • the first receiving unit 23 is configured to receive a radio frequency resource adjustment policy sent by the PCRF.
  • the first execution unit 24 is configured to perform the radio frequency resource adjustment policy for the user equipment that is still in a congested state and the user equipment that is still in an over-service state.
  • the base station device After receiving the adjustment policy of the PCRF, the base station device performs resource adjustment in the user equipment that is still in the congestion state after the pre-adjustment and the user equipment that is in the service state, to further control the congestion of the user equipment.
  • a base station device can wirelessly access a user equipment in a congested state and a user equipment in an over-service state when the radio access network is congested.
  • the frequency resources are redistributed to ensure the smooth communication; and the base station equipment pre-adjusts the resources when congestion occurs, which can control congestion in time and reduce the workload of the PCRF.
  • FIG. 8 is a schematic structural diagram of still another base station device according to an embodiment of the present invention.
  • the base station device 3000 includes:
  • the first sending unit 31 is configured to send a congestion report to the policy and charging rule function network element PCRF, where the congestion report includes user equipment information in a congestion state of at least one user equipment and user equipment information in an over service state. And radio frequency resource information occupied by the user equipment in the congested state and the user equipment in the over-service state.
  • the function of the first sending unit 31 is the same as that of the first sending unit 11 of the embodiment shown in FIG. 6, and details are not described herein again.
  • the first receiving unit 32 is configured to receive the adjustment expected result consultation request information sent by the PCRF, where the adjustment expected result consultation request information includes the radio frequency resource adjustment policy.
  • the adjustment expected result consultation request information includes one or more radio frequency resource adjustment policies, specifically including user equipments that need to adjust radio frequency resources, and reduces the number of user equipment radio frequency resources in an over-service state, for example, it is desirable to The radio frequency resource allocated by the user equipment is reduced to 50% now, and the base station device predicts the possible rate of the user equipment in the congested state and the user equipment in the over-service state after the resource is transferred to the user equipment in the congested state.
  • the adjustment expected result consultation request information is used to instruct the base station device to perform an expected adjustment according to the one or more radio frequency resource adjustment policies.
  • the PCRF sends an adjustment result consultation request to the base station device, and inquires the base station device to perform the expected effect of the radio frequency resource adjustment in the user equipment in the congested state and the user equipment in the over-service state.
  • FIG. 4b is a schematic flowchart of an access network congestion control method further exemplified in the embodiment shown in FIG. 4a.
  • the PCRF can obtain multiple media rates of the same media content saved on the media server from the AF, such as high definition, standard definition, and low resolution rates. These different rates can be sent to the base station device to provide identification of the served users.
  • the base station device may perform different priority identification for the user equipment that transmits the DASH service flow, and preferentially perform the user equipment whose rate is higher than the high-definition media rate as the over-service user. Newspaper.
  • the PCRF may generate different radio frequency resource adjustment strategies for different rate limiting or different user service policies.
  • the first execution unit 33 is configured to perform the radio frequency resource adjustment policy for the user equipment in the congestion state and the user equipment in the over service state.
  • the first execution unit 33 specifically includes a second execution unit 331, a second sending unit 332, and a second receiving unit 333.
  • the second executing unit 331 is configured to perform an expected adjustment on the radio frequency resource adjustment policy.
  • the second sending unit 332 is configured to send the result of the expected adjustment to the PCRF.
  • the base station device predicts the possible rate of each user equipment after the radio resource adjustment according to the scheduling algorithm used by the base station and the current actual channel condition of the user equipment adjusted by the radio frequency resource, and sends the rate to the PCRF. As shown in FIG. 4b, the base station device transmits the expected adjustment result to the PCRF.
  • the second receiving unit 333 is configured to receive a policy execution indication that is sent by the PCRF according to the result of the expected adjustment.
  • the PCRF may perform some adjustments to the radio frequency resource adjustment policy according to the expected adjustment result sent by the base station device, or the PCRF sends a radio frequency resource adjustment policy to the base station device, and the PCRF sends a policy execution indication to indicate which wireless device the base station device performs. Frequency resource adjustment strategy.
  • the second execution unit 331 is further configured to perform, according to the user equipment in the congestion state and the user equipment in the over-service state, a radio frequency resource adjustment policy indicated by the policy execution indication.
  • the base station device performs a radio frequency resource adjustment policy indicated by the policy execution indication sent by the PCRF.
  • the base station device can reallocate the radio frequency resources of the user equipment in the congested state and the user equipment in the over-service state in the case that the radio access network is congested, and ensure The communication device is fluent; and the base station device receives the adjustment expected result consulting request information of the generated one or more radio frequency resource adjustment policies by the PCRF, and performs an expected adjustment on the radio frequency resource adjustment policy, and the PCRF determines, according to the expected adjustment result, that the base station device is finally executed.
  • the radio frequency resource adjustment strategy can make resource adjustment more accurate.
  • PCRF4000 a policy and charging rule function network element
  • the receiving unit 41 is configured to receive a congestion report sent by the base station device, where the congestion report includes user equipment information in a congestion state of at least one user equipment, user equipment information in an over-service state, and user equipment in a congestion state. Radio frequency resource information occupied by user equipments that are in an over-service state.
  • the radio frequency resource allocation of each user equipment is uneven. If any user equipment transmits the service stream, the minimum required is required. If the radio frequency resource cannot be satisfied, the uplink/downlink of the access network is prone to congestion, that is, the user equipment cannot smoothly transmit data to the base station device, or the user equipment cannot smoothly receive data from the base station device.
  • the radio frequency resources allocated by a base station device are fixed, and some user equipments are congested, that is, the currently occupied radio frequency resources are lower than the minimum radio frequency resources, that is, the user equipments are in a congested state, and usually there is another Some user equipments occupy radio frequency resources higher than actually required, or radio frequency resources higher than the system-defined limits, that is, these user equipments are in an over-service state, and the minimum and limited radio frequency resources may be specified by the PCRF.
  • the base station device sends a congestion report to the PCRF, where the congestion report includes user equipment information in a congested state and user equipment information in an over-service state, and radio frequency resource information occupied by the user equipment in a congested state and the user equipment in an over-service state.
  • the receiving unit 41 receives the congestion report transmitted by the base station device.
  • the generating unit 42 is configured to generate, according to the congestion report and the user service policy, a policy for performing radio frequency resource adjustment in the user equipment in the congestion state and the user equipment in the over-service state.
  • the PCRF receives the congestion report, and the PCRF functions as a policy and charging rule function.
  • the network element has a certain user service policy for each user equipment of a base station device, for example, the priority of the user equipment, and the highest radio frequency resource of each user equipment.
  • the generating unit 42 generates a policy for performing radio frequency resource adjustment in the user equipment in the congested state and the user equipment in the over-service state according to the congestion report and the user service policy.
  • the radio frequency resource adjustment policy is used to indicate that the base station device allocates the radio frequency resource occupied by the user equipment in the over-service state to the radio frequency resource of the restricted radio frequency resource, to the at least one user. a user equipment in a congested state in the device; or stopping at least one service flow of the lowest priority user equipment among the user equipments in the congested state Transmission.
  • the sending unit 43 is configured to send the radio frequency resource adjustment policy to the base station device.
  • the transmitting unit 43 transmits the radio frequency resource adjustment policy to the base station device.
  • the base station device receives the radio frequency resource adjustment policy sent by the PCRF, and performs the policy on the user equipment in the congested state and the user equipment in the over-service state, that is, all the radio frequency resources of the user equipment in the over-service state are allocated to the base station device.
  • a user equipment in a congested state so that the user equipment in a congested state can smoothly perform service flow transmission, and control congestion of multiple user equipments served by the entire base station equipment without being in a service state.
  • the traffic flow of the device has a significant impact.
  • a PCRF can redistribute radio frequency resources of a user equipment in a congested state and a user equipment in an over-service state to ensure communication when the radio access network is congested. Unobstructed.
  • FIG. 10 is a schematic structural diagram of still another base station device according to an embodiment of the present invention.
  • the base station device 5000 includes a transmitter 51, a processor 52, and a receiver 53.
  • the sender 51 is configured to send a congestion report to the policy and charging rule function network element PCRF, where the congestion report includes user equipment information in a congestion state of at least one user equipment and user equipment information in an over service state, and Radio frequency resource information occupied by the user equipment in the congested state and the user equipment in the over-service state;
  • the receiver 53 is configured to receive a radio frequency resource adjustment policy sent by the PCRF;
  • the processor 52 is configured to perform the radio frequency resource adjustment policy for the user equipment in the congestion state and the user equipment in the over-service state.
  • the processor 52 is further configured to:
  • the part of the over-the-service user equipment exceeds the corresponding restricted radio frequency resource according to the radio frequency resource information occupied by the user equipment in the congestion state and the user equipment in the over-service state, according to the setting An algorithm is allocated to the user equipment in a congested state;
  • the transmitter 51 is specifically configured to:
  • the result of the radio frequency resource pre-adjustment includes a user setting that is still in a congested state after pre-adjustment And the user equipment information that is still in the service state, and the radio frequency resource information that is used by the pre-adjusted user equipment that is still in the congestion state and the user equipment that is in the service state.
  • the receiver 53 is specifically configured to:
  • the processor 52 performs the steps of performing the radio frequency resource adjustment policy for the user equipment in the congestion state and the user equipment in the over-service state, including:
  • the radio frequency resource information occupied by the user equipment in the congested state and the user equipment in the over-service state is an average rate of the user equipment in the congested state and the user equipment in the over-service state, or Characterizing the degree of congestion of the user equipment in the congested state and the degree of over-service of the user equipment in the over-service state;
  • the congestion level the average rate of the user equipment in the congestion state/the minimum rate
  • the over-service level the average rate/limit rate of the user equipment in the over-service state
  • the rate limit is determined from at least one rate limit according to a selection policy of the PCRF.
  • the base station device can reallocate the radio frequency resources of the user equipment in the congested state and the user equipment in the over-service state in the case that the radio access network is congested, and ensure Communication is smooth.
  • FIG. 11 is a schematic structural diagram of another PCRF according to an embodiment of the present invention.
  • the PCRF 6000 includes a receiver 61, a processor 62, and a transmitter 63.
  • the receiver 61 is configured to receive a congestion report sent by the base station device, where the congestion report includes user equipment information in a congestion state of at least one user equipment, user equipment information in an over-service state, and user equipment in a congestion state. And occupied by user devices that are in an active state Radio frequency resource information;
  • the processor 62 is configured to generate, according to the congestion report and the user service policy, a policy for performing radio frequency resource adjustment in the user equipment in a congested state and the user equipment in an over-service state;
  • the transmitter 63 sends the radio frequency resource adjustment policy to the base station device.
  • the radio frequency resource adjustment policy is used to indicate that the base station device allocates the part of the over-the-service user equipment that exceeds the corresponding restricted radio frequency resource to the camped state.
  • a PCRF can redistribute radio frequency resources of a user equipment in a congested state and a user equipment in an over-service state to ensure communication when the radio access network is congested. Unobstructed.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a computer.
  • the computer readable medium may include a random access memory (RAM), a read-only memory (ROM), and an electrically erasable programmable read-only memory (Electrically Erasable Programmable).
  • EEPROM Electrically Error Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory
  • Any connection may suitably be a computer readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, Then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, wireless and microwave are included in the fixing of the associated medium.
  • DSL Digital Subscriber Line
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Abstract

一种接入网拥塞控制方法、基站设备及策略及计费规则功能网元。所述方法包括以下步骤：向策略及计费规则功能网元（PCRF）发送拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息（S101）；接收所述PCRF发送的无线频率资源调整策略（S102）；针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述无线频率资源调整策略（S103）。还公开了相应的基站设备和PCRF。本发明实施例可以在无线接入网发生拥塞的情况下，对处于拥塞状态的用户设备和处于过服务状态的用户设备的无线频率资源进行重新分配，保证通信的通畅。

Description

接入网拥塞控制方法、基站设备及策略及计费规则功能网元
本申请要求于2014年10月31日提交中国专利局、申请号为CN201410605504.6、发明名称为“接入网拥塞控制方法、基站设备及策略及计费规则功能网元”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，尤其涉及一种接入网拥塞控制方法、基站设备及策略及计费规则功能网元。
背景技术
无线通信在全球得到了广泛地应用，极大地方便了人们之间的沟通。无线通信可以提供各种服务，包括语音通话和网页下载等等。典型的无线通信系统或网络，如长期演进(Long Term Evolution,LTE)系统通过基站设备在一个蜂窝小区内为多个用户设备(User Equipment,UE)提供无线链路实现无线通信，这种无线连接通常是使用共享的无线频谱。如图1所示的无线通信系统示意图，基站设备使用同一个无线频段为多个(图中给出了两个)UE提供无线数据通信服务，UE从服务器上下载的数据经过互联网、分组网络网关(Packet Data Network Gateway,P-GW)、服务网关(Serving Gateway,S-GW)到达基站设备，再经基站设备传给UE。与以前的二代无线通信系统，如全球移动通信系统(Global System for Mobile Communication,GSM)不同，LTE系统只支持分组交换(Packet Switching,PS)连接，不再支持电路交换(Circuit Switching,CS)连接。CS连接需要保留资源以保证数据的传输，即使发送端没有数据需要传输，预留的资源也不能得到释放。PS连接则不需要预留资源，因此可以提升无线频谱的利用效率。为了提供不同的服务质量(Quality of Service,QoS)，LTE系统通过将不同的业务映射到不同的隧道(tunnel)上，以实现不同的处理。在LTE中，定义了9种不同的QoS特性(characteristics)，其中，对应QoS等级标识(QoS Class Identifier,QCI)1～4的保证比特速率(Guaranteed Bit Rate,GBR)业务能够提供最低速率保证，比如传统语音(conventional voice)业务可以提供有保 证的语音传输速率，这样通话双方的语音质量才有保证，通话的意思表达才不会有误解。Non-GBR(非GBR)业务(如QCI等于6～9)则不提供最低速率保证，因此实际系统运行中，存在Non-GBR业务速率过低，导致用户体验不好的现象。例如，当通话(voice)用户的通信连接采用的是QCI＝7的Non-GBR类型时，相比QCI＝1的GBR业务的传统语音，此时通话双方的通信速率可能比正常通话需要保证的平均速率要低很多，这样通话接收方就会明显感觉到通话延迟，以及话音不清楚等现象，通话体验也差了很多。通信速率低于最低速率要求，业务流不能顺畅传输，则接入网将发生拥塞。
综上所述，如何对接入网发生拥塞时进行控制，保证通信的通畅是当前需要解决的问题。
发明内容
本发明实施例提供一种接入网拥塞控制方法、基站设备及策略及计费规则功能网元，以对接入网发生拥塞时进行控制，保证通信的通畅。
第一方面，本发明实施例提供了一种接入网拥塞控制方法，包括：
向策略及计费规则功能网元PCRF发送拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息；
接收所述PCRF发送的无线频率资源调整策略；
针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述无线频率资源调整策略。
在第一种可能的实现方式中，在向所述PCRF发送拥塞报告之前，所述方法还包括：
根据所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备占用的无线频率资源信息，将所述处于过服务状态的用户设备超出对应的限制的无线频率资源的部分，按照设定算法分配给所述处于拥塞状态的用户设备；
相应的，向所述PCRF发送拥塞报告，包括：
将所述无线频率资源预调整的结果作为所述拥塞报告发送给所述PCRF，其中，所述无线频率资源预调整的结果包括预调整后仍处于拥塞状态的用户设 备信息和仍处于过服务状态的用户设备信息，以及进行预调整后的所述仍处于拥塞状态的用户设备和过服务状态的用户设备占用的无线频率资源信息。
结合第一方面，在第二种可能的实现方式中，所述接收所述PCRF发送的无线频率资源调整策略，包括：
接收所述PCRF发送的调整预期结果咨询请求信息，所述调整预期结果咨询请求信息包括所述无线频率资源调整策略；
针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述无线频率资源调整策略，包括：
对所述无线频率资源调整策略执行预期调整；
向所述PCRF发送所述预期调整的结果；
接收所述PCRF根据所述预期调整的结果发送的策略执行指示；
针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述策略执行指示所指示的无线频率资源调整策略。
结合第一方面或第一方面的第一种可能的实现方式或第一方面的第二种可能的实现方式，在第三种可能的实现方式中，所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备占用的无线频率资源信息为所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备的平均速率，或以所述处于拥塞状态的用户设备的拥塞程度和所述处于过服务状态的用户设备的过服务程度表征；
其中，所述拥塞程度＝所述处于拥塞状态的用户设备的平均速率/所述最小速率；
所述过服务程度＝所述处于过服务状态的用户设备的平均速率/限制速率；
所述限制速率为根据所述PCRF的选择策略从至少一个限制速率中确定的
第二方面，本发明实施例提供了一种接入网拥塞控制方法，包括：
接收基站设备发送的拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息；
根据所述拥塞报告和用户服务策略，生成在所述处于拥塞状态用户设备和所述处于过服务状态的用户设备中进行无线频率资源调整的策略；
将所述无线频率资源调整策略发送给所述基站设备。
在第一种可能的实现方式中，所述无线频率资源调整的策略用于指示所述基站设备将所述处于过服务状态的用户设备超出对应的限制的无线频率资源的部分，分配给所述处于拥塞状态的用户设备；或停止对所述处于拥塞状态的用户设备中优先级最低的用户设备的业务流的传输。
第三方面，本发明实施例提供了一种基站设备，包括：
第一发送单元，用于向策略及计费规则功能网元PCRF发送拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息；
第一接收单元，用于接收所述PCRF发送的无线频率资源调整策略；
第一执行单元，用于针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述无线频率资源调整策略。
在第一种可能的实现方式中，所述基站设备还包括：
分配单元，用于根据所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备占用的无线频率资源信息，将所述处于过服务状态的用户设备超出对应的限制的无线频率资源的部分，按照设定算法分配给所述处于拥塞状态的用户设备；
相应的，所述第一发送单元具体用于：
将所述无线频率资源预调整的结果作为所述拥塞报告发送给所述PCRF，其中，所述无线频率资源预调整的结果包括预调整后仍处于拥塞状态的用户设备信息和仍处于过服务状态的用户设备信息，以及进行预调整后的所述仍处于拥塞状态的用户设备和过服务状态的用户设备占用的无线频率资源信息。
结合第三方面，在第二种可能的实现方式中：
所述第一接收单元具体用于：接收所述PCRF发送的调整预期结果咨询请求信息，所述调整预期结果咨询请求信息包括所述无线频率资源调整策略；
所述第一执行单元包括：
第二执行单元，用于对所述无线频率资源调整策略执行预期调整；
第二发送单元，用于向所述PCRF发送所述预期调整的结果；
第二接收单元，用于接收所述PCRF根据所述预期调整的结果发送的策略执行指示；
所述第二执行单元还用于针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述策略执行指示所指示的无线频率资源调整策略。
结合第三方面或第三方面的第一种可能的实现方式或第三方面的第二种可能的实现方式，在第三种可能的实现方式中，所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备占用的无线频率资源信息为所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备的平均速率，或以所述处于拥塞状态的用户设备的拥塞程度和所述处于过服务状态的用户设备的过服务程度表征；
其中，所述拥塞程度＝所述处于拥塞状态的用户设备的平均速率/所述最小速率；
所述过服务程度＝所述处于过服务状态的用户设备的平均速率/限制速率；
所述限制速率为根据所述PCRF的选择策略从至少一个限制速率中确定的。
第四方面，本发明实施例提供了一种策略及计费规则功能网元，包括：
接收单元，用于接收基站设备发送的拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息；
生成单元，用于根据所述拥塞报告和用户服务策略，生成在所述处于拥塞状态用户设备和所述处于过服务状态的用户设备中进行无线频率资源调整的策略；
发送单元，用于将所述无线频率资源调整策略发送给所述基站设备。
在第一种可能的实现方式中，所述无线频率资源调整策略用于指示所述基站设备将所述处于过服务状态的用户设备超出对应的限制的无线频率资源的 部分，分配给所述处于拥塞状态的用户设备；或停止对所述处于拥塞状态的用户设备中优先级最低的用户设备的业务流的传输。
可见，根据本发明实施例提供的一种接入网拥塞控制方法、基站设备及策略及计费规则功能网元，可以在无线接入网发生拥塞的情况下，对处于拥塞状态的用户设备和处于过服务状态的用户设备的无线频率资源进行重新分配，保证通信的通畅。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为无线通信系统示意图；
图2a为本发明实施例提供的一种接入网拥塞控制方法的流程示意图；
图2b为对图2a所示实施例进一步示例的接入网拥塞控制方法的流程示意图；
图3a为本发明实施例提供的另一种接入网拥塞控制方法的流程示意图；
图3b为对图3a所示实施例进一步示例的接入网拥塞控制方法的流程示意图；
图4a为本发明实施例提供的又一种接入网拥塞控制方法的流程示意图；
图4b为对图4a所示实施例进一步示例的接入网拥塞控制方法的流程示意图；
图5为本发明实施例提供的又一种接入网拥塞控制方法的流程示意图；
图6为本发明实施例提供的一种基站设备的结构示意图；
图7为本发明实施例提供的另一种基站设备的结构示意图；
图8为本发明实施例提供的又一种基站设备的结构示意图；
图9为本发明实施例提供的一种策略及计费规则功能网元PCRF的结构示意图；
图10为本发明实施例提供的又一种基站设备的结构示意图；
图11为本发明实施例提供的另一种PCRF的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图2a，为本发明实施例提供的一种接入网拥塞控制方法的流程示意图，该方法包括以下步骤：
步骤S101，向策略及计费规则功能网元PCRF发送拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息。
由于基站设备所服务的小区中的多个用户设备共享所分配的一段无线频率资源，容易发生各个用户设备的无线频率资源分配不均的情况，如果有的用户设备传输业务流，其所需的最低限的无线频率资源不能得到满足，则接入网的上行/下行链路容易发生拥塞，即用户设备不能通畅地传输数据到基站设备，或用户设备不能通畅地从基站设备接收数据。
一个基站设备被分配的无线频率资源是固定的，其下有一些用户设备发生拥塞，即当前占用的无线频率资源低于最低限的无线频率资源，也即这些用户设备处于拥塞状态，通常存在另一些用户设备占用的无线频率资源高于实际所需，或者说高于系统规定的限制的无线频率资源，即这些用户设备处于过服务状态，该最低限和限制的无线频率资源可以由PCRF规定。在本步骤中，将该基站设备的拥塞报告发送给PCRF，该拥塞报告包括处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及这些用户设备占用的无线频率资源信息。PCRF接收到该拥塞报告，且PCRF作为策略及计费规则功能网元对一个基站设备的各个用户设备有一定的用户服务策略，比如，用户设备的优先级，各个用户设备的最高限无线频率资源等，PCRF根据拥塞报告和用户服务策略，生成在处于拥塞状态的用户设备和处于过服务状态的用户设备中进行无线频率资源调整的策略，将该无线频率资源调整策略发送给基站设备。
步骤S102，接收所述PCRF发送的无线频率资源调整策略。
基站设备接收PCRF发送的无线频率资源调整策略。
步骤S103，针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述无线频率资源调整策略。
基站设备接收PCRF发送的无线频率资源调整策略，针对所涉及的处于拥塞状态的用户设备和处于过服务状态的用户设备执行该策略，即将一部分处于过服务状态的用户设备多余的无线频率资源分配给处于拥塞状态的用户设备，以使处于拥塞状态的用户设备可以通畅地进行业务流传输，对整个基站设备所服务的多个用户设备的拥塞进行控制，而又不会对处于过服务状态的用户设备的业务流传输造成明显的影响。
具体实现过程请参阅图2b，为对图2a所示实施例进一步示例的接入网拥塞控制方法的流程示意图，该示例中无线频率资源表示为平均速率，因为速率的高低能基本表明所分配的无线频率资源的多少。根据香农定理，C＝B×log(1+S/N)，其中，C是用户设备通信速率或吞吐量，B即所分配的无线频率资源，S/N则是信噪比，由于现有无线通信系统已经规定基站和用户设备需要测量上行和下行的信道条件，即信噪比S/N，因此根据通信速率就可以知道用户设备所分配的无线频率资源的情况。
首先，PCRF需要向基站设备发送不同流的优先级大小，保证该流所服务的业务体验所需要的最小速率(或基础速率等)，以及必要时对该流设置的限制速率等参数。这里的流可以是业务数据流，如3GPP协议(例如，TS 23.203)中规定的流，流的优先级包括QCI所对应的优先级(priority)等级，或者是QCI相同的多个流的相对优先等级等。最小速率和限制速率可以是事先由PCRF规定好并储存在基站设备中，也可以与流的优先级一起通过信令发送给基站设备。
基站设备收到PCRF发送的上述参数后，根据最小速率的数值，检测流是否发生了拥塞现象。按照3GPP SA2的讨论结果，在一段时间内，如果传输用户数据所需要的无线接入网资源超过了无线接入网实际提供的容量，则可认为发生了无线接入网的用户面拥塞现象。为了避免用户业务体验不好，无线接入网需要保证用户设备业务数据传输有一定的速率保障，以避免前述通话延迟等现象的发生，这个速率就是PCRF向基站设备传递过来的保证流所服务 的业务体验所需要的最小速率。如果实际服务过程中，用户设备的传输速率低于最小速率，则可判定该流发生了拥塞现象。
在现有的无线通信系统，如LTE中，在提供PS连接的non-GBR业务的服务时，由于系统不提供GBR那样的速率保证，因此基站设备在把共享的无线频率资源分配给蜂窝小区内的不同用户设备时，会考虑基于某种公平的原则进行分配，如很多文献中研究的比例公平调度(proportional fairness scheduling,PFS)算法，轮询(round-robin)算法等。这些算法调度的结果，是在不同UE之间相对公平地分配频率资源，例如带宽10MHz的无线通信系统，在服务10个UE时，会使得每个UE平均分配到大约1MHz的频率资源。但是由于各UE的所处地理位置不同，导致他们的信道条件，即信干噪比不同，因此实际的通信速率也会不同。例如，在3GPP所规定的系统仿真中，当采用PFS调度时，可以看到一个服务19个UE的蜂窝小区内，各个UE的通信速率如下表1：
表1 系统仿真各UE实测平均速率(单位,kbps)
UE序号 0 1 2 3 4 5 6 7 8 9
平均速率 606.8 1326.9 1137.1 350.5 738.3 1065.3 1422.1 1356.6 887.9 637.1
UE序号 10 11 12 13 14 15 16 17 18  
平均速率 1053.1 1142.3 1752.1 1700.1 760.1 661.0 346.5 448.3 397.9  
如果这19个UE都在传输媒体业务，而媒体的最小传输速率要求是500kbps，则序号分别为3,16,17,18的这几个UE上播放的视频必然会出现卡顿现象；相反，序号为12,13的这两个UE甚至可以实现在更大屏的移动设备(如平板或笔记本电脑)流畅播放更高分辨率的流媒体节目。
根据前述拥塞判定方法，基站设备需要向PCRF上报拥塞报告，包括：拥塞用户设备列表，在上述系统仿真实例中就是序号为3,16,17,18的用户设备，以及他们的速率，即350.5,346.5,448.3,397.9,单位是kbps；过服务(over-served)用户设备列表及其速率。根据PCRF确定的选择策略，过服务用户设备(或超速率用户设备)判断方法可以根据限制速率进行判断，例如，当PCRF设定限制速率为1.4Mbps时，则序号分别为6,12,13的UE都属于过服务用户设备；或者PCRF单独为各UE设定限制速率的前提下，如果UE 5的限制速率为800kbps，UE 7的限制速率为1Mbps，则这两个UE也属于过服务用户设备。根据PCRF确定的选择策略，过服务用户设备判断也可以结合流优先级一起判断，例如，当PCRF设定限制速率为1.4Mbps时，如果UE 1的流优先级相比其它UE，如已经发生拥塞的UE 3,16,17,18都更低，则因为UE 1的速率很接近1.4Mbps，也可以将UE 1作为过服务用户设备进行上报。或者当所有用户设备都没有超过限制速率时，可以选择最接近限制速率的用户设备作为过服务用户设备上报，或者请求PCRF新的选择策略，以确定过服务用户设备。
基站设备测量UE的上行平均速率可以直接从接收数据上进行统计得到，测量UE的下行平均速率可以通过UE反馈结果的方式获得，也可以针对无线链路控制(radio link control，RLC)确认模式(acknowledged mode,AM)方式的通信链路，在基站设备的RLC发送端通过检查已经收到确认的发送数据的数量，并减去其中的信令负载等冗余信息，计算得到下行平均速率。
PCRF收到基站设备的拥塞报告后，根据不同用户设备对业务体验的要求，自适应调整各个流的策略(policy)，然后发送给基站设备执行，以实现小区内所有用户设备的满意度最大化的目标。例如，针对前述19UE的小区，PCRF可以通过向基站设备发送policy信令明确要求对UE 6,12,13进行限制速率为1.4Mbps的限速，UE 1的优先级比较低，也可以进一步降低其限制速率，使得UE 1上的业务数据流的通信速率不超过1Mbps；针对拥塞用户设备，PCRF发送的policy信令可以将UE 3和16作为第一等级，UE18作为第二等级，UE17则列入第三等级，以要求基站设备优先提高UE 3,16的速率，在无线资源足够、UE 3和16能够实现500kbps的最小速率的前提下，再改善UE 18的体验，UE 17则可以不调整速率。或者当UE 3的流优先级相对较低时，PCRF可以要求基站设备先改善UE 16,17,18的业务体验，只有在这三个UE的业务数据流的最小速率得到满足的前提下，才去改善UE 3的传输速率。或者当无线资源不足时，可以要求基站设备停止对流优先级较低的UE 3的服务，先保证UE 16,17,18能够达到用户满意的效果。也可以要求基站设备将过服务用户设备多余的无线频率资源均匀分配给UE 3,16,17,18。
基站设备收到PCRF的调整策略后，可以有多种方法实现PCRF的要 求。通过在基站设备限制过服务用户设备的通信速率可以提高其它所有用户设备的通信速率，但控制拥塞的效果并不好，因为很多用户设备，如UE0,2,4,8,9,10,11,14,15,都没有出现拥塞现象，将过服务用户设备多余的无线频率资源也分配给这些用户设备，会显著降低对拥塞用户设备，如UE 16,17,18的改进效果。由于基站设备负责在所有用户设备间分配无线频率资源，因此基站设备可以实现过服务用户设备多余的无线频率资源的定向调整。例如，当基站设备采用round-robin调度算法时，可以适当提高拥塞用户设备分配到资源的概率，同时降低过服务用户设备分配到资源的概率，而其它用户设备分配到资源的概率则保持不变。或者基站设备采用加权比例公平调度(weighted PFS)方法，通过对需要限制速率的UE，如UE 6,12,13施加一个较小的权值，从而减少这些UE分配得到的频率资源；同时对需要提升速率的UE，如UE 16,17,18施加一个较大的权值，从而增加这些UE能够分配到的频率资源，同时保持其它用户设备的权值不变，从而保证拥塞用户设备的业务体验尽可能满意，同时，因为过服务用户设备的速率仍然能够达到或接近限制速率，如1.4Mbps，因此这些用户设备的服务体验也不会有明显降低，与此同时，其它用户设备的通信则不受影响。例如，当过服务用户设备的用户是在手机屏幕上看电影时，因为手机屏幕不大的原因，适当降低媒体节目源的分辨率，人眼通常看不出区别，因此用户体验并不会有明显降低，但对传输速率的要求却可以降低。或者，如果用户是在后台进行文件下载，那么对传输速率进行一定程度的降低并不会让这些用户感到不满意。
上述方法针对上行无线通信或下行无线通信都可以适用，针对同一个用户设备开启多个业务，即同一个UE上有多个流的情况同样适用。
可见，根据本发明实施例提供的一种接入网拥塞控制方法，可以在无线接入网发生拥塞的情况下，对处于拥塞状态的用户设备和处于过服务状态的用户设备的无线频率资源进行重新分配，保证通信的通畅。
请参阅图3a，为本发明实施例提供的另一种接入网拥塞控制方法的流程示意图，该方法包括以下步骤：
步骤S201，根据处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息，将所述处于过服务状态的用户设备超出对应的限制 的无线频率资源的部分，按照设定算法分配给所述处于拥塞状态的用户设备。
基站设备检测到拥塞现象后，如前述系统仿真实例中的UE 3等用户设备的实测平均速率不满足最小速率的要求，为了改善用户业务体验，可以对处于拥塞状态和过服务状态的用户设备进行资源预调整，以自行缓解拥塞。基站设备进行预调整，可以减少PCRF的工作量，且能及时地控制拥塞。具体地，基站设备根据处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息，将所述处于过服务状态的用户设备超出对应的限制的无线频率资源的部分，按照设定算法分配给所述处于拥塞状态的用户设备。具体的算法已前面的实施例中描述。
步骤S202，将所述无线频率资源预调整的结果作为拥塞报告发送给所述PCRF，其中，所述无线频率资源预调整的结果包括预调整后仍处于拥塞状态的用户设备信息和仍处于过服务状态的用户设备信息，以及进行预调整后的所述仍处于拥塞状态的用户设备和过服务状态的用户设备占用的无线频率资源信息。
由于基站设备进行上述预调整后，有可能不能完全控制拥塞，基站设备需要将预调整结果作为拥塞报告发送给PCRF，以使PCRF根据该预调整结果和用户服务策略进行进一步的调整，生成调整策略并发送给基站设备。
在这里，处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息可以为处于拥塞状态的用户设备和处于过服务状态的用户设备的平均速率，或以处于拥塞状态的用户设备的拥塞程度和处于过服务状态的用户设备的过服务程度表征；
其中，拥塞程度＝处于拥塞状态的用户设备的平均速率/最小速率；
过服务程度＝处于过服务状态的用户设备的平均速率/限制速率。
限制速率为基站设备根据PCRF的选择策略从至少一个限制速率中确定的。针对DASH(dynamic adaptive streaming，动态自适应流媒体)业务，PCRF可以从应用网元(application function,AF)获取媒体服务器上保存的同一媒体内容的多个媒体速率，如高清、标清、低分辨率速率。这些不同速率可以发送给基站设备以提供过服务用户的识别。在检测过服务状态的用户设备时，基站设备可以针对传输DASH业务流的用户设备执行不同优先级的识别，优先将速率高于高清媒体速率的用户设备作为过服务用户进行上报。
由于用户设备通信速率动态范围比较大，要精确地通知平均速率的数值，需要的传输信令比特数比较多，通过定义拥塞程度和过服务程度，可以有效降低基站设备上报的信令比特数。
步骤S203，接收所述PCRF发送的无线频率资源调整策略。
步骤S204，针对所述仍处于拥塞状态的用户设备和所述仍处于过服务状态的用户设备执行所述无线频率资源调整策略。
基站设备接收到PCRF的调整策略后，根据调整策略在预调整后仍处于拥塞状态的用户设备和处于过服务状态的用户设备中进行资源调整，以进一步的控制用户设备的拥塞。
具体实现过程请参阅图3b，为对图3a所示实施例进一步示例的接入网拥塞控制方法的流程示意图。PCRF向基站设备发送不同流的优先级大小，保证该流所服务的业务体验所需要的最小速率，以及必要时对该流设置的限制速率等参数。基站设备收到PCRF发送的上述参数后，根据最小速率的数值，检测流是否发生了拥塞现象。
基站设备检测到拥塞现象后，如前述系统仿真实例中的UE 3等用户设备的实测平均速率不满足最小速率的要求，为了改善用户业务体验，可以先自行缓解拥塞。基站设备首先检测是否存在过服务用户，如UE 6,12,13。基站设备可以通过前述调整速率的方法，如加权比例公平调度算法，将UE 6,12,13的速率首先降至限制速率的1.4Mbps，这三个UE让出来的频率资源通过加权调整分配给UE 3,16,17,18等发生拥塞的用户设备。此时拥塞现象可能得以消除，或者只是得到了缓解，部分用户设备上的业务数据流的传输速率仍然没有达到要求的最小速率。
下一步，基站设备需要将调整后的结果上报给PCRF。如果拥塞现象只是得到了缓解，部分用户设备的平均速率仍然达不到要求，则基站设备要上报仍处于拥塞状态和过服务状态的用户设备及其当前平均速率。
PCRF收到基站设备的上报后，PCRF需要执行与前述实施例相同的方法，例如可以要求基站设备停止对流优先级较低的UE 3的服务，先保证UE16,17,18能够达到用户满意的效果。
可见，根据本发明实施例提供的一种接入网拥塞控制方法，可以在无线接入网发生拥塞的情况下，对处于拥塞状态的用户设备和处于过服务状态的用户 设备的无线频率资源进行重新分配，保证通信的通畅；且由基站设备在发生拥塞时对资源进行预调整，可以及时地控制拥塞，并减轻PCRF的工作量。
请参阅图4a，为本发明实施例提供的又一种接入网拥塞控制方法的流程示意图，该方法包括以下步骤：
步骤S301，向策略及计费规则功能网元PCRF发送拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息。
步骤S301与图2a所示实施例的步骤S101相同，在此不再赘述。
步骤S302，接收所述PCRF发送的调整预期结果咨询请求信息，所述调整预期结果咨询请求信息包括所述无线频率资源调整策略。
由于基站设备负责管理无线频率资源的分配，PCRF对无线频率资源调整的结果的预测不如基站设备准确，为了更好地保证无线频率资源调整的效果，PCRF可以向基站发出调整预期结果咨询请求信息，该调整预期结果咨询请求信息中包括一个或多个无线频率资源调整策略，具体地包含需要调整无线频率资源的用户设备，以及减少处于过服务状态的用户设备无线频率资源的数量，例如希望将该用户设备所分配的无线频率资源减少到现在的50％，由基站设备预测该资源转给处于拥塞状态的用户设备后，处于拥塞状态的用户设备和处于过服务状态的用户设备可能的速率。该调整预期结果咨询请求信息用于指示基站设备根据该一个或多个无线频率资源调整策略执行预期调整。PCRF向基站设备发送调整预期结果咨询，询问基站设备在处于拥塞状态的用户设备和处于过服务状态的用户设备中执行无线频率资源调整的预期效果。
具体实现过程请参阅图4b，为对图4a所示实施例进一步示例的接入网拥塞控制方法的流程示意图。针对DASH业务，PCRF可以从AF获取媒体服务器上保存的同一媒体内容的多个媒体速率，如高清、标清、低分辨率速率。这些不同速率可以发送给基站设备以提供过服务用户的识别。在检测过服务状态的用户设备时，基站设备可以针对传输DASH业务流的用户设备执行不同优先级的识别，优先将速率高于高清媒体速率的用户设备作为过服务用户进行上报。
针对不同的限制速率或者不同的用户服务策略，PCRF可能生成不同的无线频率资源调整策略。
步骤S303，对所述无线频率资源调整策略执行预期调整。
步骤S304，向所述PCRF发送所述预期调整的结果。
基站设备根据自己采用的调度算法、所涉及无线频率资源调整的用户设备当前的实际信道条件，预测出无线资源调整后各用户设备可能的速率大小，并发送给PCRF。如图4b所示，基站设备将预期调整结果发送给PCRF。
步骤S305，接收所述PCRF根据所述预期调整的结果发送的策略执行指示。
PCRF根据基站设备发送的预期调整结果，可能对无线频率资源调整策略进行一些调整，或者在步骤S302中PCRF发送给基站设备有多个无线频率资源调整策略，现PCRF发送策略执行指示，指示基站设备执行哪一个无线频率资源调整策略。
步骤S306，针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述策略执行指示所指示的无线频率资源调整策略。
基站设备执行PCRF发送的策略执行指示所指示的无线频率资源调整策略。
可见，根据本发明实施例提供的一种接入网拥塞控制方法，可以在无线接入网发生拥塞的情况下，对处于拥塞状态的用户设备和处于过服务状态的用户设备的无线频率资源进行重新分配，保证通信的通畅；且基站设备接收PCRF对生成的一个或多个无线频率资源调整策略的调整预期结果咨询请求信息，对无线频率资源调整策略进行预期调整，PCRF根据预期调整结果确定最终由基站设备执行的无线频率资源调整策略，可以使资源调整更加准确。
请参阅图5，为本发明实施例提供的又一种接入网拥塞控制的流程示意图，该方法包括以下步骤：
步骤S401，接收基站设备发送的拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息。
由于基站设备所服务的多个用户设备共享所分配的一段无线频率资源，容易发生各个用户设备的无线频率资源分配不均的情况，如果有的用户设备传输业务流，其所需的最低限的无线频率资源不能得到满足，则接入网的上行/下行链路容易发生拥塞，即用户设备不能通畅地传输数据到基站设备，或用户设备不能通畅地从基站设备接收数据。
一个基站设备被分配的无线频率资源是固定的，其下有一些用户设备发生拥塞，即当前占用的无线频率资源低于最低限的无线频率资源，也即这些用户设备处于拥塞状态，通常存在另一些用户设备占用的无线频率资源高于实际所需，或者说高于系统规定的限制的无线频率资源，即这些用户设备处于过服务状态，该最低限和限制的无线频率资源可以由PCRF规定。基站设备将拥塞报告发送给PCRF，该拥塞报告包括处于拥塞状态的用户设备信息和过服务状态的用户设备信息，以及处于拥塞状态的用户设备和过服务状态的用户设备占用的无线频率资源信息。
步骤S402，根据所述拥塞报告和用户服务策略，生成在所述处于拥塞状态用户设备和所述处于过服务状态的用户设备中进行无线频率资源调整的策略。
PCRF接收到该拥塞报告，且PCRF作为策略及计费规则功能网元对一个基站设备的各个用户设备有一定的用户服务策略，比如，用户设备的优先级，各个用户设备的最高限无线频率资源等，PCRF根据拥塞报告和用户服务策略，生成在处于拥塞状态的用户设备和处于过服务状态的用户设备中进行无线频率资源调整的策略。
作为一种实施方式，无线频率资源调整策略用于指示基站设备将所述处于过服务状态的用户设备占用的无线频率资源高于限制的无线频率资源的无线频率资源，分配给所述至少一个用户设备中处于拥塞状态的用户设备；或停止对所述处于拥塞状态的用户设备中优先级最低的用户设备的至少一个业务流的传输。
步骤S403，将所述无线频率资源调整策略发送给所述基站设备。
PCRF将该无线频率资源调整策略发送给基站设备。基站设备接收PCRF发送的无线频率资源调整策略，针对所涉及的处于拥塞状态的用户设备和处于过服务状态的用户设备执行该策略，即将一部分处于过服务状态的用户设备多 余的无线频率资源分配给处于拥塞状态的用户设备，以使处于拥塞状态的用户设备可以通畅地进行业务流传输，对整个基站设备所服务的多个用户设备的拥塞进行控制，而又不会对处于过服务状态的用户设备的业务流传输造成明显的影响。
可见，根据本发明实施例提供的一种接入网拥塞控制方法，可以在无线接入网发生拥塞的情况下，对处于拥塞状态的用户设备和处于过服务状态的用户设备的无线频率资源进行重新分配，保证通信的通畅。
请参阅图6，为本发明实施例提供的一种基站设备的结构示意图，该基站设备1000包括：
第一发送单元11，用于向策略及计费规则功能网元PCRF发送拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息。
由于基站设备所服务的小区中的多个用户设备共享所分配的一段无线频率资源，容易发生各个用户设备的无线频率资源分配不均的情况，如果有的用户设备传输业务流，其所需的最低限的无线频率资源不能得到满足，则接入网的上行/下行链路容易发生拥塞，即用户设备不能通畅地传输数据到基站设备，或用户设备不能通畅地从基站设备接收数据。
一个基站设备被分配的无线频率资源是固定的，其下有一些用户设备发生拥塞，即当前占用的无线频率资源低于最低限的无线频率资源，也即这些用户设备处于拥塞状态，通常存在另一些用户设备占用的无线频率资源高于实际所需，或者说高于系统规定的限制的无线频率资源，即这些用户设备处于过服务状态，该最低限和限制的无线频率资源可以由PCRF规定。第一发送单元11将该基站设备的拥塞报告发送给PCRF，该拥塞报告包括处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及这些用户设备占用的无线频率资源信息。PCRF接收到该拥塞报告，且PCRF作为策略及计费规则功能网元对一个基站设备的各个用户设备有一定的用户服务策略，比如，用户设备的优先级，各个用户设备的最高限无线频率资源等，PCRF根据拥塞报告和用户服务策略，生成在处于拥塞状态的用户设备和处于过服务状态的用户设备中进 行无线频率资源调整的策略，将该无线频率资源调整策略发送给基站设备。
第一接收单元12，用于接收所述PCRF发送的无线频率资源调整策略。
第一接收单元12接收PCRF发送的无线频率资源调整策略。
第一执行单元13，用于针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述无线频率资源调整策略。
第一接收单元12接收PCRF发送的无线频率资源调整策略，第一执行单元13针对所涉及的处于拥塞状态的用户设备和处于过服务状态的用户设备执行该策略，即将一部分处于过服务状态的用户设备多余的无线频率资源分配给处于拥塞状态的用户设备，以使处于拥塞状态的用户设备可以通畅地进行业务流传输，对整个基站设备所服务的多个用户设备的拥塞进行控制，而又不会对处于过服务状态的用户设备的业务流传输造成明显的影响。
可见，根据本发明实施例提供的一种基站设备，可以在无线接入网发生拥塞的情况下，对处于拥塞状态的用户设备和处于过服务状态的用户设备的无线频率资源进行重新分配，保证通信的通畅。
请参阅图7，为本发明实施例提供的另一种基站设备的结构示意图，该基站设备2000包括：
分配单元21，用于根据处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息，将所述处于过服务状态的用户设备超出对应的限制的无线频率资源的部分，按照设定算法分配给所述处于拥塞状态的用户设备。
基站设备检测到拥塞现象后，如前述系统仿真实例中的UE 3等用户设备的实测平均速率不满足最小速率的要求，为了改善用户业务体验，可以对处于拥塞状态和过服务状态的用户设备进行资源预调整，以自行缓解拥塞。基站设备进行预调整，可以减少PCRF的工作量，且能及时地控制拥塞。具体地，分配单元21根据处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息，将所述处于过服务状态的用户设备超出对应的限制的无线频率资源的部分，按照设定算法分配给所述处于拥塞状态的用户设备。
第一发送单元22：用于将所述无线频率资源预调整的结果作为拥塞报告发送给所述PCRF，其中，所述无线频率资源预调整的结果包括预调整后仍处 于拥塞状态的用户设备信息和仍处于过服务状态的用户设备信息，以及进行预调整后的所述仍处于拥塞状态的用户设备和过服务状态的用户设备占用的无线频率资源信息。
由于基站设备进行上述预调整后，有可能不能完全控制拥塞，第一发送单元22需要将预调整结果作为拥塞报告发送给PCRF，以使PCRF根据该预调整结果和用户服务策略进行进一步的调整，生成调整策略并发送给基站设备。
在这里，处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息可以为处于拥塞状态的用户设备和处于过服务状态的用户设备的平均速率，或以处于拥塞状态的用户设备的拥塞程度和处于过服务状态的用户设备的过服务程度表征；
其中，拥塞程度＝处于拥塞状态的用户设备的平均速率/最小速率；
过服务程度＝处于过服务状态的用户设备的平均速率/限制速率。
限制速率为基站设备根据PCRF的选择策略从至少一个限制速率中确定的。针对DASH(dynamic adaptive streaming，动态自适应流媒体)业务，PCRF可以从应用网元(application function,AF)获取媒体服务器上保存的同一媒体内容的多个媒体速率，如高清、标清、低分辨率速率。这些不同速率可以发送给基站设备以提供过服务用户的识别。在检测过服务状态的用户设备时，基站设备可以针对传输DASH业务流的用户设备执行不同优先级的识别，优先将速率高于高清媒体速率的用户设备作为过服务用户进行上报。
由于用户设备通信速率动态范围比较大，要精确地通知平均速率的数值，需要的传输信令比特数比较多，通过定义拥塞程度和过服务程度，可以有效降低基站设备上报的信令比特数。
第一接收单元23，用于接收所述PCRF发送的无线频率资源调整策略。
第一执行单元24，用于针对所述仍处于拥塞状态的用户设备和所述仍处于过服务状态的用户设备执行所述无线频率资源调整策略。
基站设备接收到PCRF的调整策略后，根据调整策略在预调整后仍处于拥塞状态的用户设备和处于过服务状态的用户设备中进行资源调整，以进一步的控制用户设备的拥塞。
可见，根据本发明实施例提供的一种基站设备，可以在无线接入网发生拥塞的情况下，对处于拥塞状态的用户设备和处于过服务状态的用户设备的无线 频率资源进行重新分配，保证通信的通畅；且由基站设备在发生拥塞时对资源进行预调整，可以及时地控制拥塞，并减轻PCRF的工作量。
请参阅图8，为本发明实施例提供的又一种基站设备的结构示意图，该基站设备3000包括：
第一发送单元31，用于向策略及计费规则功能网元PCRF发送拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息。
第一发送单元31的功能与图6所示实施例的第一发送单元11相同，在此不再赘述。
第一接收单元32，用于接收所述PCRF发送的调整预期结果咨询请求信息，所述调整预期结果咨询请求信息包括所述无线频率资源调整策略。
由于基站设备负责管理无线频率资源的分配，PCRF对无线频率资源调整的结果的预测不如基站设备准确，为了更好地保证无线频率资源调整的效果，PCRF可以向基站发出调整预期结果咨询请求信息，该调整预期结果咨询请求信息中包括一个或多个无线频率资源调整策略，具体地包含需要调整无线频率资源的用户设备，以及减少处于过服务状态的用户设备无线频率资源的数量，例如希望将该用户设备所分配的无线频率资源减少到现在的50％，由基站设备预测该资源转给处于拥塞状态的用户设备后，处于拥塞状态的用户设备和处于过服务状态的用户设备可能的速率。该调整预期结果咨询请求信息用于指示基站设备根据该一个或多个无线频率资源调整策略执行预期调整。PCRF向基站设备发送调整预期结果咨询，询问基站设备在处于拥塞状态的用户设备和处于过服务状态的用户设备中执行无线频率资源调整的预期效果。
具体实现过程请参阅图4b，为对图4a所示实施例进一步示例的接入网拥塞控制方法的流程示意图。针对DASH业务，PCRF可以从AF获取媒体服务器上保存的同一媒体内容的多个媒体速率，如高清、标清、低分辨率速率。这些不同速率可以发送给基站设备以提供过服务用户的识别。在检测过服务状态的用户设备时，基站设备可以针对传输DASH业务流的用户设备执行不同优先级的识别，优先将速率高于高清媒体速率的用户设备作为过服务用户进行上 报。
针对不同的限制速率或者不同的用户服务策略，PCRF可能生成不同的无线频率资源调整策略。
第一执行单元33，用于针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述无线频率资源调整策略。
在本实施例中，第一执行单元33具体的包括第二执行单元331、第二发送单元332和第二接收单元333。
第二执行单元331，用于对所述无线频率资源调整策略执行预期调整。
第二发送单元332，用于向所述PCRF发送所述预期调整的结果。
基站设备根据自己采用的调度算法、所涉及无线频率资源调整的用户设备当前的实际信道条件，预测出无线资源调整后各用户设备可能的速率大小，并发送给PCRF。如图4b所示，基站设备将预期调整结果发送给PCRF。
第二接收单元333，用于接收所述PCRF根据所述预期调整的结果发送的策略执行指示。
PCRF根据基站设备发送的预期调整结果，可能对无线频率资源调整策略进行一些调整，或者PCRF发送给基站设备有多个无线频率资源调整策略，现PCRF发送策略执行指示，指示基站设备执行哪一个无线频率资源调整策略。
第二执行单元331还用于针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述策略执行指示所指示的无线频率资源调整策略。
基站设备执行PCRF发送的策略执行指示所指示的无线频率资源调整策略。
可见，根据本发明实施例提供的一种基站设备，可以在无线接入网发生拥塞的情况下，对处于拥塞状态的用户设备和处于过服务状态的用户设备的无线频率资源进行重新分配，保证通信的通畅；且基站设备接收PCRF对生成的一个或多个无线频率资源调整策略的调整预期结果咨询请求信息，对无线频率资源调整策略进行预期调整，PCRF根据预期调整结果确定最终由基站设备执行的无线频率资源调整策略，可以使资源调整更加准确。
请参阅图9，为本发明实施例提供的一种策略及计费规则功能网元PCRF 的结构示意图，该PCRF4000包括：
接收单元41，用于接收基站设备发送的拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息。
由于基站设备所服务的多个用户设备共享所分配的一段无线频率资源，容易发生各个用户设备的无线频率资源分配不均的情况，如果有的用户设备传输业务流，其所需的最低限的无线频率资源不能得到满足，则接入网的上行/下行链路容易发生拥塞，即用户设备不能通畅地传输数据到基站设备，或用户设备不能通畅地从基站设备接收数据。
一个基站设备被分配的无线频率资源是固定的，其下有一些用户设备发生拥塞，即当前占用的无线频率资源低于最低限的无线频率资源，也即这些用户设备处于拥塞状态，通常存在另一些用户设备占用的无线频率资源高于实际所需，或者说高于系统规定的限制的无线频率资源，即这些用户设备处于过服务状态，该最低限和限制的无线频率资源可以由PCRF规定。基站设备将拥塞报告发送给PCRF，该拥塞报告包括处于拥塞状态的用户设备信息和过服务状态的用户设备信息，以及处于拥塞状态的用户设备和过服务状态的用户设备占用的无线频率资源信息。接收单元41接收基站设备发送的拥塞报告。
生成单元42，用于根据所述拥塞报告和用户服务策略，生成在所述处于拥塞状态用户设备和所述处于过服务状态的用户设备中进行无线频率资源调整的策略。
PCRF接收到该拥塞报告，且PCRF作为策略及计费规则功能网元对一个基站设备的各个用户设备有一定的用户服务策略，比如，用户设备的优先级，各个用户设备的最高限无线频率资源等，生成单元42根据拥塞报告和用户服务策略，生成在处于拥塞状态的用户设备和处于过服务状态的用户设备中进行无线频率资源调整的策略。
作为一种实施方式，无线频率资源调整策略用于指示基站设备将所述处于过服务状态的用户设备占用的无线频率资源高于限制的无线频率资源的无线频率资源，分配给所述至少一个用户设备中处于拥塞状态的用户设备；或停止对所述处于拥塞状态的用户设备中优先级最低的用户设备的至少一个业务流 的传输。
发送单元43，用于将所述无线频率资源调整策略发送给所述基站设备。
发送单元43将该无线频率资源调整策略发送给基站设备。基站设备接收PCRF发送的无线频率资源调整策略，针对所涉及的处于拥塞状态的用户设备和处于过服务状态的用户设备执行该策略，即将一部分处于过服务状态的用户设备多余的无线频率资源分配给处于拥塞状态的用户设备，以使处于拥塞状态的用户设备可以通畅地进行业务流传输，对整个基站设备所服务的多个用户设备的拥塞进行控制，而又不会对处于过服务状态的用户设备的业务流传输造成明显的影响。
可见，根据本发明实施例提供的一种PCRF，可以在无线接入网发生拥塞的情况下，对处于拥塞状态的用户设备和处于过服务状态的用户设备的无线频率资源进行重新分配，保证通信的通畅。
请参阅图10，为本发明实施例提供的又一种基站设备的结构示意图，该基站设备5000包括：发送器51、处理器52和接收器53。
发送器51，用于向策略及计费规则功能网元PCRF发送拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息；
接收器53，用于接收所述PCRF发送的无线频率资源调整策略；
处理器52，用于针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述无线频率资源调整策略。
作为一种实施方式，在发送器51向所述PCRF发送拥塞报告之前，所述处理器52还用于：
根据所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备占用的无线频率资源信息，将所述处于过服务状态的用户设备超出对应的限制的无线频率资源的部分，按照设定算法分配给所述处于拥塞状态的用户设备；
相应的，所述发送器51具体用于：
将所述无线频率资源预调整的结果作为所述拥塞报告发送给所述PCRF，其中，所述无线频率资源预调整的结果包括预调整后仍处于拥塞状态的用户设 备信息和仍处于过服务状态的用户设备信息，以及进行预调整后的所述仍处于拥塞状态的用户设备和过服务状态的用户设备占用的无线频率资源信息。
作为另一种实施方式，所述接收器53具体用于：
接收所述PCRF发送的调整预期结果咨询请求信息，所述调整预期结果咨询请求信息包括所述无线频率资源调整策略；
所述处理器52执行所述针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述无线频率资源调整策略的步骤，包括：
对所述无线频率资源调整策略执行预期调整；
向所述PCRF发送所述预期调整的结果；
接收所述PCRF根据所述预期调整的结果发送的策略执行指示；
针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述策略执行指示所指示的无线频率资源调整策略。
其中，所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备占用的无线频率资源信息为所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备的平均速率，或以所述处于拥塞状态的用户设备的拥塞程度和所述处于过服务状态的用户设备的过服务程度表征；
其中，所述拥塞程度＝所述处于拥塞状态的用户设备的平均速率/所述最小速率；
所述过服务程度＝所述处于过服务状态的用户设备的平均速率/限制速率；
所述限制速率为根据所述PCRF的选择策略从至少一个限制速率中确定的。
可见，根据本发明实施例提供的一种基站设备，可以在无线接入网发生拥塞的情况下，对处于拥塞状态的用户设备和处于过服务状态的用户设备的无线频率资源进行重新分配，保证通信的通畅。
请参阅图11，为本发明实施例提供的另一种PCRF的结构示意图，该PCRF6000包括：接收器61、处理器62和发送器63。
接收器61，用于接收基站设备发送的拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用 的无线频率资源信息；
处理器62，用于根据所述拥塞报告和用户服务策略，生成在所述处于拥塞状态用户设备和所述处于过服务状态的用户设备中进行无线频率资源调整的策略；
发送器63，将所述无线频率资源调整策略发送给所述基站设备。
作为一种实施方式，所述无线频率资源调整的策略用于指示所述基站设备将所述处于过服务状态的用户设备超出对应的限制的无线频率资源的部分，分配给所述处于拥塞状态的用户设备；或停止对所述处于拥塞状态的用户设备中优先级最低的用户设备的业务流的传输。
可见，根据本发明实施例提供的一种PCRF，可以在无线接入网发生拥塞的情况下，对处于拥塞状态的用户设备和处于过服务状态的用户设备的无线频率资源进行重新分配，保证通信的通畅。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为根据本发明，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必须的。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本发明可以用硬件实现，或固件实现，或它们的组合方式来实现。当使用软件实现时，可以将上述功能存储在计算机可读介质中或作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是计算机能够存取的任何可用介质。以此为例但不限于：计算机可读介质可以包括随机存取存储器(Random Access Memory，RAM)、只读存储器(Read-Only Memory，ROM)、电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码 并能够由计算机存取的任何其他介质。此外。任何连接可以适当的成为计算机可读介质。例如，如果软件是使用同轴电缆、光纤光缆、双绞线、数字用户线(Digital Subscriber Line，DSL)或者诸如红外线、无线电和微波之类的无线技术从网站、服务器或者其他远程源传输的，那么同轴电缆、光纤光缆、双绞线、DSL或者诸如红外线、无线和微波之类的无线技术包括在所属介质的定影中。如本发明所使用的，盘(Disk)和碟(disc)包括压缩光碟(CD)、激光碟、光碟、数字通用光碟(DVD)、软盘和蓝光光碟，其中盘通常磁性的复制数据，而碟则用激光来光学的复制数据。上面的组合也应当包括在计算机可读介质的保护范围之内。
总之，以上所述仅为本发明技术方案的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (12)

  1. 一种接入网拥塞控制方法，其特征在于，包括：
    向策略及计费规则功能网元PCRF发送拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息；
    接收所述PCRF发送的无线频率资源调整策略；
    针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述无线频率资源调整策略。
  2. 如权利要求1所述的方法，其特征在于，在向所述PCRF发送拥塞报告之前，所述方法还包括：
    根据所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备占用的无线频率资源信息，将所述处于过服务状态的用户设备超出对应的限制的无线频率资源的部分，按照设定算法分配给所述处于拥塞状态的用户设备；
    相应的，向所述PCRF发送拥塞报告，包括：
    将所述无线频率资源预调整的结果作为所述拥塞报告发送给所述PCRF，其中，所述无线频率资源预调整的结果包括预调整后仍处于拥塞状态的用户设备信息和仍处于过服务状态的用户设备信息，以及进行预调整后的所述仍处于拥塞状态的用户设备和过服务状态的用户设备占用的无线频率资源信息。
  3. 如权利要求1所述的方法，其特征在于，所述接收所述PCRF发送的无线频率资源调整策略，包括：
    接收所述PCRF发送的调整预期结果咨询请求信息，所述调整预期结果咨询请求信息包括所述无线频率资源调整策略；
    针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述无线频率资源调整策略，包括：
    对所述无线频率资源调整策略执行预期调整；
    向所述PCRF发送所述预期调整的结果；
    接收所述PCRF根据所述预期调整的结果发送的策略执行指示；
    针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述策略执行指示所指示的无线频率资源调整策略。
  4. 如权利要求1-3任意一项所述的方法，其特征在于，所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备占用的无线频率资源信息为所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备的平均速率，或以所述处于拥塞状态的用户设备的拥塞程度和所述处于过服务状态的用户设备的过服务程度表征；
    其中，所述拥塞程度＝所述处于拥塞状态的用户设备的平均速率/所述最小速率；
    所述过服务程度＝所述处于过服务状态的用户设备的平均速率/限制速率；
    所述限制速率为根据所述PCRF的选择策略从至少一个限制速率中确定的。
  5. 一种接入网拥塞控制方法，其特征在于，包括：
    接收基站设备发送的拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息；
    根据所述拥塞报告和用户服务策略，生成在所述处于拥塞状态用户设备和所述处于过服务状态的用户设备中进行无线频率资源调整的策略；
    将所述无线频率资源调整策略发送给所述基站设备。
  6. 如权利要求5所述的方法，其特征在于，所述无线频率资源调整的策略用于指示所述基站设备将所述处于过服务状态的用户设备超出对应的限制的无线频率资源的部分，分配给所述处于拥塞状态的用户设备；或停止对所述处于拥塞状态的用户设备中优先级最低的用户设备的业务流的传输。
  7. 一种基站设备，其特征在于，包括：
    第一发送单元，用于向策略及计费规则功能网元PCRF发送拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息；
    第一接收单元，用于接收所述PCRF发送的无线频率资源调整策略；
    第一执行单元，用于针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述无线频率资源调整策略。
  8. 如权利要求7所述的基站设备，其特征在于，还包括：
    分配单元，用于根据所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备占用的无线频率资源信息，将所述处于过服务状态的用户设备超出对应的限制的无线频率资源的部分，按照设定算法分配给所述处于拥塞状态的用户设备；
    相应的，所述第一发送单元具体用于：
    将所述无线频率资源预调整的结果作为所述拥塞报告发送给所述PCRF，其中，所述无线频率资源预调整的结果包括预调整后仍处于拥塞状态的用户设备信息和仍处于过服务状态的用户设备信息，以及进行预调整后的所述仍处于拥塞状态的用户设备和过服务状态的用户设备占用的无线频率资源信息。
  9. 如权利要求7所述的基站设备，其特征在于：
    所述第一接收单元具体用于：接收所述PCRF发送的调整预期结果咨询请求信息，所述调整预期结果咨询请求信息包括所述无线频率资源调整策略；
    所述第一执行单元包括：
    第二执行单元，用于对所述无线频率资源调整策略执行预期调整；
    第二发送单元，用于向所述PCRF发送所述预期调整的结果；
    第二接收单元，用于接收所述PCRF根据所述预期调整的结果发送的策略执行指示；
    所述第二执行单元还用于针对所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备执行所述策略执行指示所指示的无线频率资源调整策 略。
  10. 如权利要求7-9任意一项所述的基站设备，其特征在于，所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备占用的无线频率资源信息为所述处于拥塞状态的用户设备和所述处于过服务状态的用户设备的平均速率，或以所述处于拥塞状态的用户设备的拥塞程度和所述处于过服务状态的用户设备的过服务程度表征；
    其中，所述拥塞程度＝所述处于拥塞状态的用户设备的平均速率/所述最小速率；
    所述过服务程度＝所述处于过服务状态的用户设备的平均速率/限制速率；
    所述限制速率为根据所述PCRF的选择策略从至少一个限制速率中确定的。
  11. 一种策略及计费规则功能网元PCRF，其特征在于，包括：
    接收单元，用于接收基站设备发送的拥塞报告，其中，所述拥塞报告包括至少一个用户设备中处于拥塞状态的用户设备信息和处于过服务状态的用户设备信息、以及处于拥塞状态的用户设备和处于过服务状态的用户设备占用的无线频率资源信息；
    生成单元，用于根据所述拥塞报告和用户服务策略，生成在所述处于拥塞状态用户设备和所述处于过服务状态的用户设备中进行无线频率资源调整的策略；
    发送单元，用于将所述无线频率资源调整策略发送给所述基站设备。
  12. 如权利要求11所述的PCRF，其特征在于，所述无线频率资源调整策略用于指示所述基站设备将所述处于过服务状态的用户设备超出对应的限制的无线频率资源的部分，分配给所述处于拥塞状态的用户设备；或停止对所述处于拥塞状态的用户设备中优先级最低的用户设备的业务流的传输。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109314984A (zh) * 2016-06-15 2019-02-05 高通股份有限公司 用于网络节点或调制解调器的数据分组存储、转发、和监测功能

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104320808B (zh) 2014-10-31 2017-11-24 华为技术有限公司 接入网拥塞控制方法、基站设备及策略及计费规则功能网元
GB2539731B (en) * 2015-06-25 2021-08-04 Airspan Ip Holdco Llc Quality of service in wireless backhauls
GB2539727B (en) 2015-06-25 2021-05-12 Airspan Ip Holdco Llc A configurable antenna and method of operating such a configurable antenna
CN109996285B (zh) * 2017-12-29 2022-09-06 中国移动通信集团四川有限公司 网络拥塞控制方法、装置、设备及介质
CN110324800B (zh) 2018-03-30 2021-01-29 华为技术有限公司 一种策略控制的方法、网元及系统
CN111757386B (zh) * 2019-03-28 2023-05-02 成都鼎桥通信技术有限公司 下载控制方法及设备
CN113141628B (zh) * 2020-01-20 2023-12-12 中国移动通信集团辽宁有限公司 小区拥塞处理方法、系统、上报装置及处理装置
US11588876B2 (en) * 2020-06-16 2023-02-21 T-Mobile Usa, Inc. Device-side playback restrictions on high throughput networks
CN111901881B (zh) * 2020-08-12 2022-08-26 中国联合网络通信集团有限公司 一种传输方法及装置
US11546920B2 (en) 2021-01-29 2023-01-03 Verizon Patent And Licensing Inc. Systems and methods for dynamic event-based resource allocation in a radio access network
CN116582891B (zh) * 2023-07-13 2023-10-17 上海铂联通信技术有限公司 5g无线网络系统的负载优化方法、装置、介质及终端

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101711041A (zh) * 2009-12-09 2010-05-19 华为技术有限公司 拥塞控制方法、操作维护中心设备和基站
CN102387546A (zh) * 2011-10-21 2012-03-21 大唐移动通信设备有限公司 一种无线资源调控方法及装置
CN104053182A (zh) * 2013-03-11 2014-09-17 三星电子株式会社 用于控制移动通信网络的拥塞状态的方法和装置
CN104066115A (zh) * 2013-03-20 2014-09-24 中兴通讯股份有限公司 无线接入网络拥塞管理方法及装置、拥塞策略管理方法及系统
CN104320808A (zh) * 2014-10-31 2015-01-28 华为技术有限公司 接入网拥塞控制方法、基站设备及策略及计费规则功能网元

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4201498B2 (ja) * 2001-08-06 2008-12-24 ソフトバンクテレコム株式会社 通信システムにおける周波数資源割当方法
US7961617B2 (en) 2002-10-29 2011-06-14 Telefonaktiebolaget Lm Ericsson (Publ) System and method for wireless network congestion control
CN1283064C (zh) * 2003-01-28 2006-11-01 华为技术有限公司 基于接入用户的带宽控制方法
US8000249B2 (en) 2006-11-28 2011-08-16 Telefonaktiebolaget L M Ericsson (Publ) Method for improved congestion detection and control in a wireless telecommunications systems
CN102138301B (zh) * 2008-05-28 2016-02-17 凯敏公司 合理使用管理方法和系统
ES2609093T3 (es) * 2008-12-17 2017-04-18 Comptel Corporation Control dinámico del tráfico de una red móvil
US8787174B2 (en) * 2009-12-31 2014-07-22 Tekelec, Inc. Methods, systems, and computer readable media for condition-triggered policies
EP2385721A1 (en) * 2010-05-03 2011-11-09 Alcatel Lucent Providing enhanced quality of service differentiation in a mobile communication system
KR101695716B1 (ko) * 2010-08-02 2017-01-13 삼성전자주식회사 다중안테나 시스템에서 평균 전송률을 제어하기 위한 스케줄링 방법 및 장치
KR101706168B1 (ko) 2010-10-13 2017-02-14 에스케이텔레콤 주식회사 데이터 서비스의 품질 보장 시스템 및 방법
US8681622B2 (en) * 2010-12-17 2014-03-25 Tekelec, Inc. Policy and charging rules function (PCRF) and performance intelligence center (PIC) based congestion control
CN102075898B (zh) * 2010-12-21 2014-02-26 华为技术有限公司 业务控制方法、装置及系统
US8665717B2 (en) 2011-02-18 2014-03-04 Verizon Patent And Licensing Inc. Data rate aware scheduling in advanced wireless networks
KR101975557B1 (ko) * 2011-08-09 2019-05-07 에스케이텔레콤 주식회사 이기종 네트워크 기반 데이터 동시 전송 서비스 방법 및 이에 적용되는 장치
JP5937806B2 (ja) * 2011-11-10 2016-06-22 株式会社Ｎｔｔドコモ 移動通信方法、ポリシー及び課金ルールサーバ装置及び移動管理ノード
JP6396808B2 (ja) * 2012-02-17 2018-09-26 インターデイジタル パテント ホールディングス インコーポレイテッド 輻輳を処理するおよび／またはユーザ体感品質を管理するための階層的トラフィック区分化
US9374289B2 (en) * 2012-02-28 2016-06-21 Verizon Patent And Licensing Inc. Dynamically provisioning subscribers to manage network traffic
JP6040663B2 (ja) 2012-09-19 2016-12-07 富士通株式会社 通信制御装置、無線通信システム、及び無線通信方法
US9231774B2 (en) * 2012-09-27 2016-01-05 Alcatel Lucent Congestion control for radio access networks (RAN)
EP2731373A1 (en) * 2012-11-13 2014-05-14 NTT DoCoMo, Inc. Method and apparatus for congestion notification
US9432910B2 (en) * 2013-03-11 2016-08-30 Futurewei Technologies, Inc. System and method for WiFi authentication and selection
EP2784991A1 (en) 2013-03-28 2014-10-01 NTT DoCoMo, Inc. Method and apparatus for congestion mitigation
CN104105131B (zh) * 2013-04-07 2018-03-16 华为终端有限公司 拥塞调控方法、装置
WO2014171790A1 (en) * 2013-04-18 2014-10-23 Samsung Electronics Co., Ltd. Method and apparatus for controlling media delivery in multimedia transport network
US20140321271A1 (en) * 2013-04-24 2014-10-30 Telefonaktiebolaget L M Ericsson (Publ) Signal reduction based on radio load

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101711041A (zh) * 2009-12-09 2010-05-19 华为技术有限公司 拥塞控制方法、操作维护中心设备和基站
CN102387546A (zh) * 2011-10-21 2012-03-21 大唐移动通信设备有限公司 一种无线资源调控方法及装置
CN104053182A (zh) * 2013-03-11 2014-09-17 三星电子株式会社 用于控制移动通信网络的拥塞状态的方法和装置
CN104066115A (zh) * 2013-03-20 2014-09-24 中兴通讯股份有限公司 无线接入网络拥塞管理方法及装置、拥塞策略管理方法及系统
CN104320808A (zh) * 2014-10-31 2015-01-28 华为技术有限公司 接入网拥塞控制方法、基站设备及策略及计费规则功能网元

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109314984A (zh) * 2016-06-15 2019-02-05 高通股份有限公司 用于网络节点或调制解调器的数据分组存储、转发、和监测功能
CN109314984B (zh) * 2016-06-15 2021-12-28 高通股份有限公司 用于网络节点的无线通信的方法

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