CN104159254B - A kind of network congestion processing method and system - Google Patents
A kind of network congestion processing method and system Download PDFInfo
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- CN104159254B CN104159254B CN201410351601.7A CN201410351601A CN104159254B CN 104159254 B CN104159254 B CN 104159254B CN 201410351601 A CN201410351601 A CN 201410351601A CN 104159254 B CN104159254 B CN 104159254B
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Abstract
The invention provides a kind of network congestion processing method and system, methods described includes：The Center Processing Unit Utilization of radio network controller and the user equipment capabilities of forward access channel are obtained in real time；According to the Center Processing Unit Utilization and the user equipment capabilities, radio resource control connection refused message is adjusted respectively the transmission priority for establishing message is connected with radio resource control and sends proportionality coefficient.The transmission priority and transmission proportionality coefficient of present invention adjustment radio resource control connection refused message, can strengthen the ability for preventing UE from accessing network, can reduce UE access frequency in time；The transmission priority and transmission proportionality coefficient of message are established in adjustment radio resource control connection, can be strengthened the ability that UE is linked into other networks, be shunted the problem of UE is to other systems network, effectively alleviation network congestion in time.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of network congestion processing method and system.
Background technology
With the increase that the various packet switching services of smart mobile phone popularization use, network on-line user number and telephone traffic are held
Continuous to increase, increasing to the demand of Internet resources, effectively to utilize Internet resources, various new algorithms are applied to network, solve
Network congestion problem.
Provided because UE (User Equipment, user equipment) access amount reaches network caused by network maximum carrying capacity
When source congestion occurs, UE accesses are difficult, and then cause UE access signaling storms, cause RNC (Radio Network
Controller, radio network controller) CPU (Central Processing Unit, central processing unit) on board takes
Rate lifting, the stability to network make a big impact, and in festivals or holidays or the specific occasion that the crowd is dense, problem highlights tighter
Weight.
In existing method, some protocol parameters that control user accesses frequency are that configuration in advance is good in equipment, if
Standby operation maintenance personnel must predict network congestion in advance and be only possible to carry out equipment safety guarantee.Again due to refusal user's access
RRC CONNECTION REJECT (radio resource control connection refusal) message and the RRC for allowing user to access
CONNECTION SETUP (radio resource control connection is established) message is the common signal channel FACH (Forward in cell
Access Channel, forward access channel) on send, when a large amount of UE are accessed, FACH channel heavy congestions cause UE can not
RRC CONNECTION REJECT message is received so as to shunt, RRC CONNECTION SETUP message can not be received, is caused
Network is set to allow the UE of access can not access network and continue to re-access, the generation of signaling congestion phenomenon occur, (UE can not receive RRC
After CONNECTION SETUP message, UE may proceed to attempt access, access can only on the common signal channel of main carrier (RACH and
FACH), the access that makes repeated attempts can cause that RNC main carrier channels are super busy, and RNC loads increase, due to needing to send in FACH
RRC CONNECTION SETUP message informings UE is accessed, or sends RRC CONNECTION REJECT refusal UE accesses, UE
These message can not be received and accessed or be linked into after being refused other networks, made repeated attempts, UE sends substantial amounts of access please
Message is sought, RNC issues substantial amounts of RRC CONNECTION SETUP message or RRC CONNECTION REJECT message, drawn
Play FACH signaling congestions), causing user to perceive phone can not transfer to.Existing method can not reduce UE access frequency in time, in time
UE is shunted to different grid, it is impossible to effectively alleviate network congestion.
The content of the invention
The present invention provides a kind of network congestion processing method and system, must not reduce UE access frequency in time with solution, no
UE can be shunted in time to different grid, it is impossible to effectively alleviate the problem of network congestion.
In order to solve the above problems, the invention discloses a kind of network congestion processing method, including：
The Center Processing Unit Utilization of radio network controller and the user equipment capabilities of forward access channel are obtained in real time；
According to the Center Processing Unit Utilization and the user equipment capabilities, radio resource control is adjusted respectively and is connected
Refuse information is connect to connect the transmission priority for establishing message with radio resource control and send proportionality coefficient.
Preferably, described according to the Center Processing Unit Utilization and the user equipment capabilities, adjustment is wireless respectively provides
Source control protocol connection refused message connects the transmission priority for establishing message with radio resource control and sends ratio system
Number, including：
When the Center Processing Unit Utilization is more than level-overload thresholding, and the user equipment capabilities are more than capacity threshold
When, improve the transmission priority of the radio resource control connection refused message and send proportionality coefficient, reduce the nothing
The connection of line Resource Control protocols establishes the transmission priority of message and sends proportionality coefficient；
Wherein, the radio resource control connection refused message includes redirecting message；The redirection message package
Include 2G, 4G or 3G cell list information；The radio resource control connection refused message and the Radio Resource control
Agreement connection processed establishes message and is separately stored in two independent message transmit queues；The transmission priority is described two only
The message prioritization of vertical message transmit queue sends rank；The proportionality coefficient that sends sends team for described two independent message
The message quantity forwarded ratio of row.
Preferably, methods described also includes：
According to the Center Processing Unit Utilization or the user equipment capabilities, time of user equipment access network is reduced
Number.
Preferably, it is described according to the Center Processing Unit Utilization or the user equipment capabilities, reduce user equipment and connect
Enter the number of network, including：
The duration for being more than level-overload thresholding when the Center Processing Unit Utilization is more than preset time, or the use
When family place capacity is more than capacity threshold, broadcast system information is updated in n top ranked cell, reduces user equipment access network
Number, n is positive integer；
Wherein, the quantity of the radio resource control connection request message in the top ranked cell is more than wireless network control
The quantity of radio resource control connection request message in other cells of device processed；The broadcast system information includes
The maximum number of times of transmission of uplink synchronous code in N300, T300, TD SDMA in uplink pilot time slot and synchronization are most
Big number of attempt；The T300 is after user equipment sends radio resource control connection request message, to wait Radio Resource
Control protocol connects the timer for establishing message；The N300 is that the transmission of radio resource control connection request message is normal
Amount.
The invention also discloses a kind of network congestion processing system, including：
Acquisition module, for obtaining the Center Processing Unit Utilization and forward access channel of radio network controller in real time
User equipment capabilities；
Adjusting module, for according to the Center Processing Unit Utilization and the user equipment capabilities, adjustment to be wireless respectively
Resource Control protocols connection refused message connects the transmission priority and transmission ratio for establishing message with radio resource control
Coefficient.
Preferably, the adjusting module is more than level-overload thresholding, and the user when the Center Processing Unit Utilization
When place capacity is more than capacity threshold, transmission priority and the transmission of the radio resource control connection refused message are improved
Proportionality coefficient, reduce the radio resource control connection and establish the transmission priority of message and send proportionality coefficient；
Wherein, the radio resource control connection refused message includes redirecting message；The redirection message package
Include 2G, 4G or 3G cell list information；The radio resource control connection refused message and the Radio Resource control
Agreement connection processed establishes message and is separately stored in two independent message transmit queues；The transmission priority is described two only
The message prioritization of vertical message transmit queue sends rank；The proportionality coefficient that sends sends team for described two independent message
The message quantity forwarded ratio of row.
Preferably, the system also includes：
Module is reduced, for according to the Center Processing Unit Utilization or the user equipment capabilities, reducing user equipment
Access the number of network.
Preferably, the module that reduces is when the Center Processing Unit Utilization is more than more than the duration of level-overload thresholding
Preset time, or when the user equipment capabilities are more than capacity threshold, broadcast system information is updated in n top ranked cell,
The number of user equipment access network is reduced, n is positive integer；
Wherein, the quantity of the radio resource control connection request message in the top ranked cell is more than wireless network control
The quantity of radio resource control connection request message in other cells of device processed；The broadcast system information includes
The maximum number of times of transmission of uplink synchronous code in N300, T300, TD SDMA in uplink pilot time slot and synchronization are most
Big number of attempt；The T300 is after user equipment sends radio resource control connection request message, to wait Radio Resource
Control protocol connects the timer for establishing message；The N300 is that the transmission of radio resource control connection request message is normal
Amount.
Compared with background technology, the present invention includes advantages below：
By obtaining RNC CPU usage and FACH UE capacity in real time, for real-time RNC CPU usage situation
With the situation of real-time FACH UE capacity, radio resource control connection refused message and Radio Resource can be adjusted respectively
Control protocol connection establishes the transmission priority of message and sends proportionality coefficient, is jointly processed by network congestion problem.In the present invention
Technical scheme in, adjust the transmission priority of radio resource control connection refused message and send proportionality coefficient, can be with
Strengthen the ability for preventing UE from accessing network, UE access frequency can be reduced in time；Radio resource control connection is adjusted to establish
The transmission priority and transmission proportionality coefficient of message, can strengthen the ability that UE is linked into other networks, shunt UE in time and arrive it
His grid, the problem of effectively alleviating network congestion.
Brief description of the drawings
Fig. 1 is the process flow diagram flow chart of UE access networks；
Fig. 2 is a kind of network congestion processing method flow chart in the embodiment of the present invention；
Fig. 3 is another network congestion processing method flow chart in the embodiment of the present invention；
Fig. 4 is a kind of network congestion processing system structure chart in the embodiment of the present invention；
Fig. 5 is another network congestion processing system structure chart in the embodiment of the present invention.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
The process of UE Network with Random Multiple Access System may be summarized to be following several steps, and the process flow diagram flow chart of UE access networks
As shown in Figure 1.
Step 1：It is (up same in uplink pilot time slot in TD SDMA that UE randomly chooses a SYNC_UL
Code is walked, each cell has 8 SYNC_UL) send to NodeB (base station), estimation transmission RRC Connection Request (nothings
Line Resource Control protocols connection request) power and Timing Advance needed for message.NodeB detects the SYNC_UL that UE is sent,
RRC Connection are sent in FPACH (Fast Physical Access Channel, physical access channel) loopback
Power needed for Request and Timing Advance.
Step 2：UE according to the power and Timing Advance of NodeB loopbacks, RACH (Random Access Channel,
RACH) or PRACH (Physical Random Access Channel, Physical Random Access Channel) on send
RRC CONNECTION REQUEST message is to RNC.If RNC allows UE to access, RRC is sent on FACH
CONNECTION SETUP message is to UE.If RNC does not allow UE to access, in FACH or SCCPCH (Secondary
Common Control Physical Channel, Secondary Common Control Physical Channel) on send RRC CONNECTION
REJECT message is to UE.
The mistake of synchronization is established in the carrying being additionally included in above-mentioned steps 2 on CELL_DCH (cell private channel)
Journey, i.e. RNC send RADIO LINK SETUP REQUEST (wireless link request) message to NodeB, NodeB return
RADIO LINK SETUP RESPONSE (wireless link response) message is to RNC.
Step 3：UE returns to RRC on DCCH (Dedicated Control Channel, DCCH)
CONNECTION SETUP COMPLETE (radio resource control connection establish complete) message is to RNC.After RNC is received, table
Show that UE is successfully accessed.
Because UE accesses are frequent, in step 1 stage, UE may collide conflict, UE when being randomly choosed in 8 SYNC_UL
Selection SYNC_UL, and the transmit power of RRC Connection Request message and the conflict meeting for sending the time can be repeated
Continue to strengthen, SYNC_UL maximum times MaxSYNCUL and synchronous maximum attempts M are sent defined in TS25.224max,
The two parameters are broadcasted in the system information SIB5 (Neighboring Cell List between frequency), this stage because UE does not access network, RNC networks without
Method counts to UE, but user perceive can not make a phone call (voice) and can not initiate data service surf the Net.In step 2 stage,
Due to RACH, FACH channel access limited ability, the UE numbers accessed within the unit interval are excessive, FACH meeting congestions, cause big
Amount UE can not receive RRC CONNECTION SETUP message and send RRC CONNECTION REQUEST message again,
Provide that UE (after UE sends RRC CONNECTION REQUEST message, waits RRC in T300 in TS25.331 agreements
The startup timer of CONNECTION SETUP message) after, after RRC CONNECTION SETUP message can not be received, repeat to send out
Send N300 RRC CONNECTION REQUEST message.T300 and N300 (includes network insertion service in system information SIB1
The timer and counter that device information and UE are under idle mode and connected mode) in broadcast.Such UE repeats access operation
Signaling is caused to be spread unchecked, the complete congestion of control channel, RNC is tired in handling a large amount of signaling accesses, consumes a large amount of cpu resources.
The congestion in step 2 stage, RNC can be counted the number of RRC CONNECTION REQUEST message with the cycle, obtain access signaling
Load condition, judge FACH whether congestion.Due to descending transmission RRC CONNECTION SETUP message and CELL UPDATE
CONFIRM (cell update confirmation) message uses UM (interface between base station and mobile station) pattern, the upper no SS of FACH
(Synchronization Shift) and TPC (Transmit Power Control), it is thus impossible to carry out closed-loop power control and
Synchronous, reliability is low, and it is several that RNC can configure the repetition transmission times increase UE receptions of RRC CONNECTION SETUP message
Rate, it may more aggravate FACH congestions.To ensure network insertion capacity, RNC can open bis- accesses of FACH and small speed UE is resident
In FACH state, such function further results in FACH channel congestions.FACH channel congestions, UE can not receive carrying and redirect
The RRC CONNECTION REJECT message of information and continue access network, cause congestion to be aggravated.Therefore, the technology of the present invention side
Case is solved when network load is higher, when congestion occurs for FACH channels, is shunted UE as early as possible to other networks and is reduced UE accesses
Network frequency, ensure network security the problem of.
A kind of network congestion processing method provided by the invention is discussed in detail below by several specific embodiments are enumerated
And system.
Embodiment one
A kind of network congestion processing method provided in an embodiment of the present invention is discussed in detail.
Reference picture 2, show a kind of network congestion processing method flow chart in the embodiment of the present invention.
Step 100, the Center Processing Unit Utilization of radio network controller and the user of forward access channel are obtained in real time
Place capacity.
In addition to it can be performed according to above-mentioned steps 100, the step 100 can also be：The CPU for obtaining RNC in real time takes
The UE capacity of rate or FACH.
In the present embodiment, the mode of the real-time CPU usage for obtaining RNC of selection and FACH UE capacity handles network and gathered around
Plug.But in practical operation, according to actual conditions the one of which in above-mentioned two situations can be selected to be performed.
Step 102, according to the Center Processing Unit Utilization and the user equipment capabilities, Radio Resource control is adjusted respectively
Agreement connection refused message processed connects the transmission priority for establishing message with radio resource control and sends proportionality coefficient.
According to the RNC obtained in real time in above-mentioned steps 100 CPU usage and FACH UE capacity, Radio Resource is adjusted
The transmission priority and transmission proportionality coefficient of control protocol connection refused message, and adjust radio resource control connection and establish
The transmission priority and transmission proportionality coefficient of message.
Specifically can be by improving the transmission priority of the radio resource control connection refused message and sending ratio
Example coefficient, reduce the radio resource control connection and establish the transmission priority of message and send the mode of proportionality coefficient,
Solves the problems, such as network congestion.
In summary, the embodiment of the present invention by obtaining RNC CPU usage and FACH UE capacity in real time, for reality
When RNC CPU usage situation and real-time FACH UE capacity situation, radio resource control can be adjusted respectively
Connection refused message connects the transmission priority for establishing message with radio resource control and sends proportionality coefficient, is jointly processed by
Network congestion problem.In the inventive solutions, the transmission for adjusting radio resource control connection refused message is preferential
Level and transmission proportionality coefficient, can strengthen the ability for preventing UE from accessing network, can reduce UE access frequency in time；Adjustment is wireless
Resource Control protocols connection establishes the transmission priority of message and sends proportionality coefficient, can strengthen UE and be linked into other networks
Ability, the problem of UE is to other systems network, effectively alleviation network congestion is shunted in time.
Embodiment two
A kind of network congestion processing method provided in an embodiment of the present invention is discussed in detail.
Reference picture 3, show a kind of network congestion processing method flow chart in the embodiment of the present invention.
Step 200, the Center Processing Unit Utilization of radio network controller and/or the use of forward access channel are obtained in real time
Family place capacity.
The step 200 can include following situations：
First, RNC CPU usage or FACH UE capacity are obtained in real time.
2nd, RNC CPU usage and FACH UE capacity are obtained in real time.
In practical operation, according to actual conditions the one of which in above-mentioned two situations can be selected to be performed.
The CPU usage can also include not just for CPU percentage size and maintain holding for certain percentage
The continuous time.
For example, RNC CPU usage is 40%, the duration is 8 seconds.
Step 202, according to the Center Processing Unit Utilization and/or the user equipment capabilities, network congestion is handled.
Preferably, the step 202 can be divided into following two kinds of situations and perform, and any one is selected in following two kinds of situations
Processing of the embodiment of the present invention to network congestion can be achieved.
Step 2021, according to the Center Processing Unit Utilization and the user equipment capabilities, Radio Resource is adjusted respectively
Control protocol connection refused message connects the transmission priority for establishing message with radio resource control and sends proportionality coefficient.
Preferably, the step 2021 can be：
When the Center Processing Unit Utilization is more than level-overload thresholding, and the user equipment capabilities are more than capacity threshold
When, improve the transmission priority of the radio resource control connection refused message and send proportionality coefficient, reduce the nothing
The connection of line Resource Control protocols establishes the transmission priority of message and sends proportionality coefficient.
Wherein, the radio resource control connection refused message can include redirecting message；The redirection disappears
Breath can include 2G, 4G or 3G cell list information；The radio resource control connection refused message and the nothing
The connection of line Resource Control protocols establishes message and is separately stored in two independent message transmit queues；The transmission priority is institute
The message prioritization for stating two independent message transmit queues sends rank；The transmission proportionality coefficient disappears to be described two independent
Cease the message quantity forwarded ratio of transmit queue.
For example, the level-overload thresholding could be arranged to 75%, it can be configured according to actual conditions, the capacity door
10/second are limited to, can also be configured according to actual conditions., can be with when it is 12/ second that CPU usage, which is 80%, UE capacity,
Improve the transmission priority of RRC CONNECTION REJECT message and send proportionality coefficient, reduce RRC CONNECTION
The transmission priority and transmission proportionality coefficient of SETUP message.Such as the hair of RRC CONNECTION REJECT message under normal circumstances
Send priority and send transmission priority and transmission proportionality coefficient of the proportionality coefficient with RRC CONNECTION SETUP message
Identical, the transmission priority and transmission proportionality coefficient for being now adjusted to RRC CONNECTION REJECT message are above RRC
The transmission priority and transmission proportionality coefficient of CONNECTION SETUP message.
Step 2022, according to the Center Processing Unit Utilization or the user equipment capabilities, user equipment access is reduced
The number of network.
Preferably, the step 2022 can be：
The duration for being more than level-overload thresholding when the Center Processing Unit Utilization is more than preset time, or the use
When family place capacity is more than capacity threshold, broadcast system information is updated in n top ranked cell, reduces user equipment access network
Number, n is positive integer.
Wherein, the quantity of the radio resource control connection request message in the top ranked cell is more than wireless network control
The quantity of radio resource control connection request message in other cells of device processed；The broadcast system information includes
The maximum number of times of transmission of uplink synchronous code in N300, T300, TD SDMA in uplink pilot time slot and synchronization are most
Big number of attempt；The T300 is after user equipment sends radio resource control connection request message, to wait Radio Resource
Control protocol connects the timer for establishing message；The N300 is that the transmission of radio resource control connection request message is normal
Amount.
For example, the level-overload thresholding could be arranged to 75%, it can be configured according to actual conditions, when described preset
Between could be arranged to 15 seconds, can be configured according to actual conditions, the capacity threshold is 10/second, can also be according to reality
Border situation is configured.Top ranked cell can the RNC according to statistics RRC CONNECTION REQUEST message transmission times
Most cells, the number of top ranked cell can also be configured according to actual conditions.It can be incited somebody to action in the broadcast system message
N300 is arranged to 0, T300 and is arranged to maximum 8 seconds, and maximum times MaxSYNCUL and synchronous maximum attempts Mmax are respectively provided with
For 1, renewal broadcast system information can notify UE not repeat to access, and UE collision is several when reducing FACH channels and Stochastic accessing
Rate.
Meanwhile RNC can also set RRC CONNECTION SETUP message and CELL UPDATE CONFIRM message
It is 0 to repeat transmission times, is taken for reducing FACH.Less than a certain overload level and continue certain a period of time in CPU usage
The normal parameter configurations of Shi Huifu, a certain overload level herein can also be set according to actual conditions for a period of time with certain
Put.
On the calculating of UE capacity, can according to corresponding to below equation and UE the common signal channel of cell configuring condition
Calculate FACH UE capacity.PICH (Paging Indicator Channel, Page Indication Channel) block is by NPICHIndividual successive frame
Composition, paging repetition period PBP (Paging Block Periodicity), protection interval NGAP, the transmission time of FACH channels
It is spaced TTIFach.It is not multiplexed in PICH and FACH, but during PICH and SCCPCH multiplexings, within a PBP cycle, FACH is sent most
More (PBP-NPICH-NGAPThe message of) × 10ms, it is multiplexed in PICH and FACH, but when PICH and SCCPCH are not multiplexed, NGAPAnd NPICH
It is 0.FACH channel occupancy physical channels SCCPCH time accounting is (PBP-NPICH-NGAP)/PBP。
It should be noted that：PICH and SCCPCH is physical layer parameter, but represents to use phase during PICH and SCCPCH multiplexings
Same code channel information, the two physical channels are can not to send data simultaneously, because FACH is carried on SCCPCH, therefore
When PICH and SCCPCH is multiplexed, within a PBP cycle, it is most occupancy (PBP-N that FACH, which sends message,PICH-NGAP)×10ms
Duration.
It is multiplexed in PCH and FACH, but (uses different physical code channels) when PICH and SCCPCH are not multiplexed, NPICHAnd NGAP
For 0, represent that both, without using identical physical resources, can send data simultaneously.
RRC CONNECTION SETUP message or RRC CONNECTION REJECT message are sent on FACH, these
Message has certain length, is expressed as Lenmsg.Transmission channel agreement regulation FACH has TTI (Transmission Time
InterVal, Transmission Time Interval) and TB (Transprot Block, the transmission block) number that can be transmitted in a TTI
With size (TBSize), TB sizes and number composition TF (Transport Format, transformat) therefore, can bases
The TF of the upper message sizes to be sent of FACH and FACH, it is possible to calculate and send the time that this message needs.
The transformat of FACH carrier signalings is expressed as TFFach_Sig, message-length is expressed as Lenmsg, sending signaling needs
TTI number be：TFFach_Sig/Lenmsg.Therefore, the number of calls that FACH was supported in 1 second is：β=(1000 × (PBP-
NPICH-NGAP)/PBP)/((Lenmsg/TFFach_Sig)×TFFach_Sig)。
According to this formula, RNC can reach the frequency by Cell statistical unit interval signaling on FACH channels, calculate
Signaling frequency β.
Formula is explained：1000 represent 1 second, (PBP-NPICH-NGAP)/PBP represents that FACH takes on physical channel SCCPCH
The ratio of time, the part of back represent that conveying length is Len on FACHmsgMessage need time.
So formula finally calculate be：The number for the message that conveying length is Len can be sent in 1 second on FACH,
It is exactly the number that RRC CONNECTION REJECT or RRC CONNECTION SETUP message can be sent in 1 second, i.e.,
The request number of manageable access user equipment in 1 second.
Illustrate：(RACH transformats TF=1*170, TTI 10ms, FACH TF=2* is configured in canonical parameter
171, FACH TTI are 20ms, NPICH=2, NGAP=4, PBP=60ms) when, RRC CONNECTION REQUEST message codings
It is about 170bit afterwards, transmission takes around 10ms, is about 8*171bit after RRC CONNECTION SETUP message codings,
4*20=80ms is needed, time slot 0, FACH channel occupancies are all located at due to PCH and FACH code division multiplexings SCCPCH and with PICH
The duration ratio of transmission channel is (580/640)=0.90625.Therefore, the number of users of the upper supports per second of FACH is：(1000
× 0.90625)/80=11.RACH upper accessing user's number (1000 × 1)/10=100.RACH channel capacities are more than
FACH channel capacities.Therefore, according to λ and β relativity, when UE is accessed in real time, the FACH letters of each cell be can determine whether out
Whether road occurs signaling congestion, and user equipment Access Control Policy is carried out in conjunction with CPU usage.As lifting, which carries, redirects
The refusal UE accesses RRC CONNECTION REJECT message UE of information is properly received probability and more transmission RRC CONNECTION
REJECT message, receive RRC CONNECTION REQUEST message with the unit interval when CPU is more than certain rank and be more than
During FACH capacity thresholds, set what RRC CONNECTION REJECT message and RRC CONNECTION SETUP message were sent
Priority relationship and transmission ratio, in network heavy congestion, the RRC CONNECTION REJECT for carrying redirection information disappear
The priority and transmission ratio of breath accordingly increase, and are easy to UE in time and high probability receives and carries GSM (Global System
For Mobile communication, global system for mobile communications) or LTE (Long Term Evolution, are drilled for a long time
Enter) the RRC CONNECTION REJECT message of adjacent area and be diverted to other networks, reduce RNC load.
During specific implementation, in network normal duty, the message transmit queue of each one first in first out of cell maintenance,
RRC CONNECTION REJECT message and RRC CONNECTION SETUP message are pressed in a queue enters sequencing
Sent in order on FACH.In network excess load and when user's access is frequent, increase the message of a first in first out to cell
Transmit queue, RRC CONNECTION SETUP message enter first queue, and RRC CONNECTION REJECT enter the second team
Row.According to CPU overload rank, the transmission ratio and priority of message in two queues are configured, preferential send is selected according to ratio
Message, while ensureing certain amount UE access network, increase UE as far as possible and receive the refuse information for carrying redirection information, from
And other systems network is diverted to, RNC load soft landing is realized, user equipment is accessed other systems net in time as far as possible again
Network, ensure that user perceives.
In the embodiment of the present invention, it is higher than some thresholding because UE accesses frequently result in CPU usage, or UE capacity approaches
FACH thresholdings, and after continuing for some time, top ranked cell can update broadcast system information, notice UE accesses in batches in RNC
Network number, UE access networks are reduced, reduce network load, prevents UE in advance and frequently accesses.Less than some introduction thresholding
And after continuing for some time, the state before can recovering automatically.Enter because UE accesses frequently result in CPU usage higher than some
Door thresholding, or UE capacity is close to FACH thresholdings, and after continuing for some time, RNC can set message retransmission on FACH automatically
Number is 0.Less than some introduction thresholding, and after continuing for some time, it is automatic recover before state.
During according to CPU usage and UE capacity close to FACH capacity thresholds, adjustment RRC CONNECTION REJECT disappear
The transmission priority and transmission proportionality coefficient of breath and RRC CONNECTION SETUP message, ensure that preferential send carries redirection
The RRC CONNECTION REJECT message of information, it is easy to UE accesses to be diverted to GSM network or LTE network, reduces UE accesses
RNC frequency., also can be in RNC CPU because FACH capacity thresholds control signaling access frequency can individually be carried out for cell
, also can priority scheduling RRC CONNECTION REJECT even if the FACH access thresholdings of not up to each cell when occupancy is high
Message control UE access frequency, shunts UE to other networks in time.
In summary, the embodiment of the present invention is by obtaining RNC CPU usage and/or FACH UE capacity in real time, according to
RNC CPU usage and/or FACH UE capacity, handle network congestion problem.For real-time RNC CPU usage feelings
Condition, network congestion problem can be handled；Or the situation of the UE capacity for real-time FACH, network congestion can also be handled and asked
Topic；The situation of CPU usage situation for real-time RNC and real-time FACH UE capacity simultaneously, can be jointly processed by net
Network congestion problems.Technical scheme provides the condition of two kinds of processing network congestions, and two kinds of conditions can be used alone,
It can also be used in combination, UE access frequency can be reduced in time, shunt UE in time to other systems network, effectively alleviate network and gather around
The problem of plug.
In big traffic scene, when UE frequently accesses network, UE accesses are notified by the broadcast system information that upgrades in time
Frequency, CPU Continued probability is reduced, ensure the stability of RNC.
It is preferential to ensure that the RRC CONNECTION REJECT message for carrying redirection information occurs to receive to UE, increase UE
Probability, it is easy to UE to be diverted to other networks in time, reduces network load, ensures the stability of RNC.
Embodiment three
A kind of network congestion processing system provided in an embodiment of the present invention is discussed in detail.
Reference picture 4, show a kind of network congestion processing system structure chart in the embodiment of the present invention.
The system can include：Acquisition module 300, and, adjusting module 302.
Be discussed in detail separately below each module function and each module between relation.
Acquisition module 300, for obtaining Center Processing Unit Utilization and/or the forward direction access of radio network controller in real time
The user equipment capabilities of channel.
Adjusting module 302, for according to the Center Processing Unit Utilization and the user equipment capabilities, adjusting nothing respectively
Line Resource Control protocols connection refused message connects the transmission priority for establishing message with radio resource control and sends ratio
Example coefficient.
In summary, the embodiment of the present invention by obtaining RNC CPU usage and FACH UE capacity in real time, for reality
When RNC CPU usage situation and real-time FACH UE capacity situation, radio resource control can be adjusted respectively
Connection refused message connects the transmission priority for establishing message with radio resource control and sends proportionality coefficient, is jointly processed by
Network congestion problem.In the inventive solutions, the transmission for adjusting radio resource control connection refused message is preferential
Level and transmission proportionality coefficient, can strengthen the ability for preventing UE from accessing network, can reduce UE access frequency in time；Adjustment is wireless
Resource Control protocols connection establishes the transmission priority of message and sends proportionality coefficient, can strengthen UE and be linked into other networks
Ability, the problem of UE is to other systems network, effectively alleviation network congestion is shunted in time.
Example IV
A kind of network congestion processing system provided in an embodiment of the present invention is discussed in detail.
Reference picture 5, show a kind of network congestion processing system structure chart in the embodiment of the present invention.
The system can include：Acquisition module 400, adjusting module 402, and, reduce module 404.
Be discussed in detail separately below each module function and each module between relation.
Acquisition module 400, for obtaining the Center Processing Unit Utilization and forward direction access letter of radio network controller in real time
The user equipment capabilities in road.
Adjusting module 402, for according to the Center Processing Unit Utilization and the user equipment capabilities, adjusting nothing respectively
Line Resource Control protocols connection refused message connects the transmission priority for establishing message with radio resource control and sends ratio
Example coefficient.
Preferably, the adjusting module 402 can be more than level-overload thresholding, and institute when the Center Processing Unit Utilization
When stating user equipment capabilities and being more than capacity threshold, the transmission priority of the radio resource control connection refused message is improved
With transmission proportionality coefficient, reduce the radio resource control connection and establish the transmission priority of message and send ratio system
Number.
Wherein, the radio resource control connection refused message can include redirecting message；The redirection disappears
Breath includes 2G, 4G or 3G cell list information；The radio resource control connection refused message and the wireless money
Source control protocol connection establishes message and is separately stored in two independent message transmit queues；The transmission priority is described two
The message prioritization of individual independent message transmit queue sends rank；The proportionality coefficient that sends is described two independent message hair
Send the message quantity forwarded ratio of queue.
The reduction module 404, for according to the Center Processing Unit Utilization or the user equipment capabilities, reducing and using
The number of family equipment access network.
Preferably, the module 404 that reduces can be more than continuing for level-overload thresholding when the Center Processing Unit Utilization
Time is more than preset time, or when the user equipment capabilities are more than capacity threshold, the renewal broadcast system in n top ranked cell
System information, the number of user equipment access network is reduced, n is positive integer.
Wherein, the quantity of the radio resource control connection request message in the top ranked cell is more than wireless network control
The quantity of radio resource control connection request message in other cells of device processed；The broadcast system information includes
The maximum number of times of transmission of uplink synchronous code in N300, T300, TD SDMA in uplink pilot time slot and synchronization are most
Big number of attempt；The T300 is after user equipment sends radio resource control connection request message, to wait Radio Resource
Control protocol connects the timer for establishing message；The N300 is that the transmission of radio resource control connection request message is normal
Amount.
In summary, the embodiment of the present invention is by obtaining RNC CPU usage and/or FACH UE capacity in real time, according to
RNC CPU usage and/or FACH UE capacity, handle network congestion problem.For real-time RNC CPU usage feelings
Condition, network congestion problem can be handled；Or the situation of the UE capacity for real-time FACH, network congestion can also be handled and asked
Topic；The situation of CPU usage situation for real-time RNC and real-time FACH UE capacity simultaneously, can be jointly processed by net
Network congestion problems.Technical scheme provides the condition of two kinds of processing network congestions, and two kinds of conditions can be used alone,
It can also be used in combination, UE access frequency can be reduced in time, shunt UE in time to other systems network, effectively alleviate network and gather around
The problem of plug.
For system embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, it is related
Part illustrates referring to the part of embodiment of the method.
Each embodiment in this specification is described by the way of progressive, what each embodiment stressed be with
The difference of other embodiment, between each embodiment identical similar part mutually referring to.
A kind of network congestion processing method and system provided above the embodiment of the present invention, is described in detail,
Specific case used herein is set forth to the principle and embodiment of the present invention, and the explanation of above example is simply used
Understand the method and its core concept of the present invention in help；Meanwhile for those of ordinary skill in the art, according to the present invention's
Thought, there will be changes in specific embodiments and applications, in summary, this specification content should not be construed as
Limitation of the present invention.
Claims (8)
- A kind of 1. network congestion processing method, it is characterised in that including：The Center Processing Unit Utilization of radio network controller and the user equipment capabilities of forward access channel are obtained in real time；When the Center Processing Unit Utilization is more than level-overload thresholding, and the user equipment capabilities are more than capacity threshold, Improve the transmission priority of radio resource control connection refused message and send proportionality coefficient, reduce wireless heterogeneous networks association View connection establishes the transmission priority of message and sends proportionality coefficient.
- 2. according to the method for claim 1, it is characterised in that the radio resource control connection refused message includes Redirect message；The message that redirects includes 2G, 4G or 3G cell list information；The radio resource control connects Connect refuse information and connected with the radio resource control and establish message and be separately stored in two independent message transmit queues； The priority that sends sends rank for the message prioritization of described two independent message transmit queues；The transmission proportionality coefficient For the message quantity forwarded ratio of described two independent message transmit queues.
- 3. according to the method for claim 1, it is characterised in that methods described also includes：According to the Center Processing Unit Utilization or the user equipment capabilities, the number that user equipment accesses network is reduced.
- 4. according to the method for claim 3, it is characterised in that described according to the Center Processing Unit Utilization or the use Family place capacity, the number of user equipment access network is reduced, including：The duration for being more than level-overload thresholding when the Center Processing Unit Utilization is more than preset time, or the user sets When standby capacity is more than capacity threshold, broadcast system information is updated in n top ranked cell, reduces time of user equipment access network Number, n is positive integer；Wherein, the quantity of the radio resource control connection request message in the top ranked cell is more than radio network controller Other cells in radio resource control connection request message quantity；The broadcast system information include N300, The maximum number of times of transmission of uplink synchronous code in T300, TD SDMA in uplink pilot time slot and synchronous maximum trial Number；The T300 is after user equipment sends radio resource control connection request message, waits wireless heterogeneous networks association The timer of message is established in view connection；The N300 is the transmission constant of radio resource control connection request message.
- A kind of 5. network congestion processing system, it is characterised in that including：Acquisition module, for obtaining the Center Processing Unit Utilization of radio network controller and the user of forward access channel in real time Place capacity；Adjusting module, for being more than level-overload thresholding when the Center Processing Unit Utilization, and the user equipment capabilities are big When capacity threshold, improve the transmission priority of radio resource control connection refused message and send proportionality coefficient, reduce Radio resource control connection establishes the transmission priority of message and sends proportionality coefficient.
- 6. system according to claim 5, it is characterised in that the radio resource control connection refused message includes Redirect message；The message that redirects includes 2G, 4G or 3G cell list information；The radio resource control connects Connect refuse information and connected with the radio resource control and establish message and be separately stored in two independent message transmit queues； The priority that sends sends rank for the message prioritization of described two independent message transmit queues；The transmission proportionality coefficient For the message quantity forwarded ratio of described two independent message transmit queues.
- 7. system according to claim 5, it is characterised in that the system also includes：Module is reduced, for according to the Center Processing Unit Utilization or the user equipment capabilities, reducing user equipment access The number of network.
- 8. system according to claim 7, it is characterised in that the reduction module is big when the Center Processing Unit Utilization It is more than preset time in the duration of level-overload thresholding, or when the user equipment capabilities are more than capacity threshold, on n top Renewal broadcast system information in level cell, reduces the number of user equipment access network, n is positive integer；Wherein, the quantity of the radio resource control connection request message in the top ranked cell is more than radio network controller Other cells in radio resource control connection request message quantity；The broadcast system information include N300, The maximum number of times of transmission of uplink synchronous code in T300, TD SDMA in uplink pilot time slot and synchronous maximum trial Number；The T300 is after user equipment sends radio resource control connection request message, waits wireless heterogeneous networks association The timer of message is established in view connection；The N300 is the transmission constant of radio resource control connection request message.
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| CN106341904A (en) * | 2015-07-06 | 2017-01-18 | 中兴通讯股份有限公司 | Method and device for establishing and controlling Radio link (RL) |
| WO2017117711A1 (en) * | 2016-01-05 | 2017-07-13 | 富士通株式会社 | Information transmission method, apparatus and system |
| CN107222426B (en) * | 2016-03-21 | 2021-07-20 | 阿里巴巴集团控股有限公司 | Flow control method, device and system |
| US10785349B2 (en) | 2016-07-27 | 2020-09-22 | Huawei Technologies Co., Ltd. | Method for negotiating maximum packaging interval, apparatus, and storage medium |
| CN108541017B (en) * | 2017-03-02 | 2023-04-28 | 中兴通讯股份有限公司 | Method and device for configuring wireless resources |
| CN111294855B (en) * | 2018-12-07 | 2023-04-11 | 中国移动通信集团重庆有限公司 | Flow control method, device, equipment and medium |
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