CN1905413A - Adaptive multi-rate service speed-regulating method and system thereof - Google Patents
Adaptive multi-rate service speed-regulating method and system thereof Download PDFInfo
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Abstract
The invention relates to mobile communication field, disclosing an AMR service rate regulating method and system, making network side able to respond to various information triggering AMR service rate regulation but unable to further worsen other congestion statuses. If network side detects an event requiring to raise AMR service rate, it need consider whether the AMR meets rate reducing conditions: if not, raising AMR service rate; if network side detects an event requiring to reduce AMR service rate, directly reducing AMR service rate. And the factors of triggering an event requiring to raise/reduce AMR service rate comprise uplink transmitting power of UE, downlink transmitting power of NodeB, Iub interface flow or village load conditions, and opoosite end rate control request of AMR service.
Description
Technical field
The present invention relates to moving communicating field, particularly adaptive multi-rate (Adaptive Multi-Rate is called for short " AMR ") service speed regulation technology.
Background technology
Universal mobile telecommunications system (Universal Mobile Telecommunications System, be called for short " UMTS ") be (the European Standards Institute of ETSI European Telecommunications Standards Institute, be called for short " ETSI ") propose, be intended to global system for mobile communications (Global System for mobile Communication, abbreviation " GSM ") is smoothly transitted into the 3G (Third Generation) Moblie solution of (The Third Generation is called for short " 3G ") on the network foundation.Because UMTS adopts Wideband Code Division Multiple Access (WCDMA) (Wideband CodeDivision Multiple Access is called for short " WCDMA ") air interface technologies, therefore, also the UMTS system is called the WCDMA communication system usually.
UMTS has been for the user provides abundant business, comprises speech, data streaming service, interactive service, background service of various speed or the like.Though data service is the characteristics and the advantage place of third generation network, at the application initial stage, voice will be UMTS most important applications business.
The UMTS speech coding has adopted the AMR speech coding technology with the GSM compatibility.The AMR speech coding technology is the voice compression coding that is applied to the 3G mobile communication system of third generation partner program (3rd Generation Partnership Project is called for short " 3GPP ") regulation and stipulation.Its basic conception is the rate allocation that solves information source and chnnel coding with intelligent manner more, make Radio Resource configuration and utilize more flexibly and efficient, to guarantee professional service quality (Quality of Service is called for short " QoS ").
The AMR coding can be divided into arrowband AMR (NB-AMR) coding and wideband A MR (WB-AMR) encodes two types.The signal band of arrowband AMR is 100～3400Hz, form by 8 kinds of voice rate: 12.2k, 10.2k, 7.95k, 7.40k, 6.70k, 5.90k, 5.15k and 4.75kbps and free of data (for there not being data conditions) with for the quiet description (Silence Descriptor is called for short " SID ") of comfort noise; The signal band of wideband A MR is 50～7000Hz, is made up of 9 kinds of voice rate: 6.6k, 8.85k, 12.65k, 14.25k, 15.85k, 18.25k, 19.85k, 23.05k, 23.85kbps and free of data and SID.No matter support which kind of AMR coded system, the speed of AMR voice is by Radio Access Network (Radio Access Network, be called for short " RAN ") control, and do not rely on actual speech act (as speech and words speed), its speed can be switched by every 20ms.
Because there is multiple rate mode in the AMR voice, therefore possess the function that speed is adjusted, its major advantage of bringing comprises the following aspects:
(1) in the time of a little less than disturbing, the two-forty speech pattern can provide more excellent voice quality.
(2) disturbing when strong, the low rate speech pattern rate that can reduce errors makes voice quality more outstanding.
(3) when system's high load capacity, reduce AMR speed and can increase power system capacity.
(4) when cellular phone power supplies is not enough, also can pass through changing down, prolong the service time of mobile phone.
(5) when outside the coverage of mobile phone in the sub-district and when having used maximum through-put power, the overlay area that lower AMR speed can Extended Cell.
Therefore, RAN can utilize the encoding and decoding technique of AMR, makes balance and adaptive control according to concrete needs between factors such as network capacity, cell coverage area and voice quality.
The factor that triggers AMR speech business speed governing at present mainly contains following four aspects:
(1) size of subscriber equipment (User Equipment is called for short " UE ") uplink transmission power and the descending sign indicating number of base-station node (NodeB) transmitting power.
(2) flow of Iub interface between radio network controller (Radio Network Controller, be called for short " RNC ") and the NodeB takes place can reduce the Iub port band width that takies by reducing the AMR service rate when congested at Iub interface.
(3) cell load can be alleviated the load congestion condition by reducing the AMR service rate when cell load is congested.
(4) exempt from (nothing) secondary coding-decoding operation (Tandem Free Operation, be called for short " TFO ")/no transcoder operation (Transcoder Free Operation, abbreviation " TrFO ") under the state, opposite end RNC may require this RNC to carry out the professional upstream rate control of AMR for some reason.
In actual conditions, these the four kinds factor simultaneous possibilities in system's actual motion that trigger the AMR service speed regulation are bigger, and every kind of factor all may become the restriction of the raising speed operation that other factors triggers, this just makes AMR voice speed regulating method become comparatively complicated, not only need to respond multiple triggering message, and can not make various congestion situations become more bad after must satisfying speed governing.
Existing a kind of technical scheme is that the speed governing of AMR business is only triggered by single factors by the Operation and Maintenance configuration.For example: if be provided with the factor that triggers the AMR service speed regulation is the up-downgoing transmitting power, then can only be triggered the adjustment of AMR service rate by the size of up-downgoing transmitting power, and situations such as other factors such as Iub interface flow, cell load are not considered; If being provided with AMR service speed regulation factor is the congested of Iub interface, then RNC only takes place the AMR business that is carried on this Iub interface to be carried out reduction of speed when congested at Iub interface, and can not trigger the speed adjustment because of the size of up-downgoing transmitting power or cell load congested.
Though this scheme has been simplified the speed governing strategy of AMR business, has avoided ping-pong, has ignored the triggering factors of other speed governing, has bigger limitation.And, after the raising speed operation that current triggering factors causes, may cause the further deterioration of other congestion condition owing to do not consider the congestion condition of other factors.Such as, under the congested situation of Iub interface,, make the further deterioration of congestion condition of Iub interface probably because the factor of up-downgoing transmitting power causes the raising speed operation to the AMR business.
Existing another kind of technical scheme is when the TFO/TrFO state, and this RNC does not initiatively initiate the rise of the professional upstream rate of AMR, and only just carries out the speed adjustment when receiving the rate controlled request that opposite end RNC sends.Though this scheme considers that opposite end RNC may be in congested situation under the TFO/TrFO situation, so initiatively do not initiate the operation of upstream rate raising speed.But because RNC can't know current connection whether to be in the TFO/TrFO state, so if conversation still has encoder existence or opposite end RNC not to have the factor that triggers the downstream rate adjustment and do not initiate rate controlled in connecting, then the upstream rate of local terminal AMR business just no longer includes chance and raises after downward modulation, obviously lacks reasonability.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of adaptive multi-rate service speed-regulating method and system thereof, makes network side to respond the message of all kinds of triggering AMR service speed regulations, and can not cause further deterioration to other congestion condition.
For achieving the above object, the invention provides a kind of adaptive multi-rate service speed-regulating method, comprise following steps:
If network side detects requirement adaptive multi-rate service is carried out the incident of raising speed, and all reduction of speed conditions do not satisfy all, then this adaptive multi-rate service is carried out raising speed;
If network side detects requirement adaptive multi-rate service is carried out the incident of reduction of speed, then directly this adaptive multi-rate service is carried out reduction of speed.
Wherein, triggering factor that described requirement carries out the incident of raising speed or reduction of speed to adaptive multi-rate service comprises one of following or its combination in any:
The opposite end rate controlled request of the uplink transmission power of subscriber equipment, the down transmitting power of base-station node, Iub interface flow, cell load and described adaptive multi-rate service.
In this external described method, if described network side is the uplink transmission power of described subscriber equipment or the down transmitting power of described base-station node to the triggering factors that described adaptive multi-rate service carries out speed governing, then this network side carries out speed governing step by step to this adaptive multi-rate service.
In this external described method, described network side carries out speed governing step by step to described adaptive multi-rate service in the following manner:
Described network side is when detecting requirement this adaptive multi-rate service is carried out the incident of raising speed or reduction of speed, for this adaptive multi-rate service is provided with corresponding raising speed or low speed state, and startup timer, if detected is that the incident of raising speed is carried out in requirement and all reduction of speed conditions all do not satisfy, then the speed with this adaptive multi-rate service raises one-level, if detected is the incident that reduction of speed is carried out in requirement, then directly the speed of this adaptive multi-rate service is reduced one-level;
When described timer expiry, if being raising speed state and all reduction of speed conditions, all do not satisfy described adaptive multi-rate service, then the speed with this adaptive multi-rate service raises one-level, and restarts this timer;
When described timer expiry,, then directly the speed of this adaptive multi-rate service is reduced one-level, and restart this timer if described adaptive multi-rate service is a low speed state.
In this external described method, if described network side is described Iub interface flow or cell load to the triggering factors that described adaptive multi-rate service carries out speed governing, then this network side is directly adjusted to assurance speed with the speed of this adaptive multi-rate service.
In this external described method, if described network side is the opposite end rate controlled request of described adaptive multi-rate service to the triggering factors that described adaptive multi-rate service carries out speed governing, then this network side is directly adjusted to the speed of this adaptive multi-rate service the maximum admissible rate that is less than or equal to the opposite end request rate.
In this external described method, described network side obtains the uplink transmission power of described subscriber equipment in the following manner:
Described network side is provided with the report condition of uplink transmission power in advance for described subscriber equipment;
Described subscriber equipment is measured the uplink transmission power of self, and reports to described network side when this uplink transmission power satisfies described report condition.
In this external described method, described network side obtains the down transmitting power of described base-station node in the following manner:
Described base-station node is measured the down transmitting power to described subscriber equipment, and periodically reports described network side.
In this external described method, if described adaptive multi-rate service and other business are also deposited, then described network side abandons the transmit power data that described subscriber equipment or described base-station node report, and notifies this subscriber equipment or this base-station node to stop measurement to transmitting power.
The present invention also provides a kind of adaptive multi-rate service governing system, comprises:
Detection module is used to detect raising speed or reduction of speed are carried out in requirement to adaptive multi-rate service incident;
Judge module is used to judge whether described adaptive multi-rate service satisfies the reduction of speed condition;
Speed adjusting module is used for described adaptive multi-rate service is carried out raising speed or reduction of speed;
If described detection module detects raising speed is carried out in requirement to described adaptive multi-rate service incident, then indicate described judge module to judge whether this adaptive multi-rate service satisfies the reduction of speed condition, if this judge module is judged all reduction of speed conditions and is not all satisfied, then indicates described speed adjusting module that this adaptive multi-rate service is carried out raising speed;
If described detection module connects and detects requirement described adaptive multi-rate service is carried out the incident of reduction of speed, then directly the described speed adjusting module of indication is carried out reduction of speed to this adaptive multi-rate service.
Wherein, triggering factor that described requirement carries out the incident of raising speed or reduction of speed to adaptive multi-rate service comprises one of following or its combination in any:
The opposite end rate controlled request of the uplink transmission power of subscriber equipment, the down transmitting power of base-station node, Iub interface flow or cell load and described adaptive multi-rate service.
In this external described system, if described speed adjusting module is the uplink transmission power of described subscriber equipment or the down transmitting power of described base-station node to the triggering factors that described adaptive multi-rate service carries out speed governing, then this speed adjusting module is carried out speed governing step by step to this adaptive multi-rate service;
If described speed adjusting module is the congestion situation of described Iub interface or cell load to the triggering factors that described adaptive multi-rate service carries out speed governing, then this speed adjusting module is directly adjusted to assurance speed with the speed of this adaptive multi-rate service;
If described speed adjusting module is the opposite end rate controlled request of described adaptive multi-rate service to the triggering factors that described adaptive multi-rate service carries out speed governing, then this speed adjusting module is directly adjusted to the speed of this adaptive multi-rate service the maximum admissible rate that is less than or equal to the opposite end request rate.
By relatively finding, the main distinction of technical scheme of the present invention and prior art is, if network side detects raising speed is carried out in requirement to the AMR business incident, need consider also then whether this AMR satisfies the condition of reduction of speed, if all reduction of speed conditions all do not satisfy, then this AMR business is carried out raising speed; Detect requirement this AMR business is carried out the incident of reduction of speed if connect, then directly this AMR business is carried out reduction of speed.Trigger the factor that requires this AMR business is carried out the incident of reduction of speed or reduction of speed and comprise the uplink transmission power of UE, down transmitting power, Iub interface flow or the cell load of NodeB and the opposite end rate controlled request of AMR business, the network side of controlling the AMR service rate makes when can respond to the message of all kinds of triggering AMR service speed regulations, can not cause further deterioration, satisfy the requirement of running Optimization other congestion condition.
If triggering the factor of AMR speed governing is the uplink transmission power of UE or the down transmitting power of NodeB, then the speed of AMR business is adjusted step by step, to satisfy the smooth transition of speed; If triggering the factor of AMR speed governing is Iub interface flow or cell load, then the speed of AMR business is directly adjusted to assurance speed, with alleviate congestion situation as early as possible; If triggering the factor of AMR speed governing is the opposite end rate controlled request of AMR business, then the speed of AMR business is directly adjusted to the maximum admissible rate that is less than or equal to request rate, to satisfy the rate controlled request of opposite end as early as possible.Owing to different triggering factors has been taked different modes of speed regulation, so the demand of systematic function can be satisfied fast.
Because the AMR business is relative less to the influence of resource in speed adjustment professional with other and when depositing, therefore when AMR professional with other business and when depositing, network side abandons the transmitting power that UE or NodeB report, and notify this UE or this NodeB to stop measurement to transmitting power, with conserve system resources.
Description of drawings
Fig. 1 is the thresholding schematic diagram according to UE reporting uplink transmitting power in the AMR service speed-regulating method of first embodiment of the invention;
Fig. 2 is the process chart that receives the report of UE uplink transmission power according to RNC in the AMR service speed-regulating method of first embodiment of the invention;
Fig. 3 be according in the AMR service speed-regulating method of first embodiment of the invention to the upstream rate method flow diagram of speed governing step by step;
Fig. 4 is the thresholding schematic diagram that reports down transmitting power according to NodeB in the AMR service speed-regulating method of second embodiment of the invention;
Fig. 5 is the AMR service speed-regulating method flow chart according to second embodiment of the invention;
Fig. 6 is the AMR service speed-regulating method flow chart according to four embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Core of the present invention is, if network side has detected the incident that requires the AMR business is carried out raising speed, uplink transmission power as UE has exceeded certain thresholding, or the lower limit transmitting power of NodeB has exceeded certain thresholding etc. and need judge also then whether this AMR business does not all satisfy all reduction of speed conditions, if, then again to the professional raising speed of this AMR.If network side has detected the incident that requires the AMR business is carried out reduction of speed, and is congested as Iub interface or cell load, then directly to the professional reduction of speed of this AMR.
More than core of the present invention has been done simple declaration, below according to this principle, the first execution mode AMR service speed-regulating method of the present invention is described in detail.In the present embodiment, the uplink transmission power triggering of the incident of raising speed or reduction of speed by UE carried out in the detected requirement of network side to the AMR business.
Network side is a size of obtaining the UE uplink transmission power, must initiate to measure control after the professional foundation of AMR is finished, as adopting the mode of reporting events.Such as, disposing some power threshold to UE by RNC in advance by the Uu mouth, UE measures the uplink transmission power of self, and resulting measured value and these thresholdings are compared, if satisfy the requirement of certain thresholding, then reports to RNC with events corresponding message.
For ping-pong that prevents the speed adjustment and the Changing Pattern of considering transmitting power, can be four thresholdings of measurement configuration of transmitting power, be respectively from high to low: upper limit high threshold, upper limit low threshold, lower limit high threshold and lower limit low threshold.When the measured value of UE was higher than upper limit high threshold, is lower than upper limit low threshold, is lower than the lower limit low threshold and is higher than the lower limit high threshold, UE reported the measurement report of corresponding uplink transmission power to RNC, as shown in Figure 1.
RNC receive UE uplink transmission power measurement report handling process as shown in Figure 2.In step 201, RNC judges whether this UE has a plurality of business and deposit, if, then enter step 202, abandon this measurement report, and notice UE stops the measurement to uplink transmission power.This be because, if the AMR of UE business and other business are also deposited, then the speed adjustment of AMR business is less relatively to the influence of resource, and starting power is measured also needs certain resource, therefore, under the voice and packet data concurrent service situation, need not the AMR service speed regulation that carries out the measurement of uplink transmission power and cause, with conserve system resources.If it is professional not professional and deposit with other that RNC judges the AMR of this UE, then enter step 203.
In step 203, RNC judges detected event type.Specifically, if UE reports is that uplink transmission power is lower than upper limit low threshold or is higher than the measurement report of lower limit high threshold, judging then detected incident had not both required, the AMR business is carried out raising speed, do not require yet this AMR business is carried out reduction of speed, enter step 204, the up speed governing state of this AMR business is set to normally stop timer.Wherein, being provided for of the state of AMR business and timer realized the realization speed governing step by step to this AMR business, will describe in detail below.
If what UE reported is the measurement report that uplink transmission power is higher than upper limit high threshold, judge that then detected incident requires the AMR business is carried out reduction of speed, enter step 205, the upstream rate downward modulation one-level with this AMR business enters step 206, judge whether speed governing is successful, if, then entering step 207, the up speed governing state that starts timer and this AMR business is set to reduction of speed, otherwise, process ends.This shows, if network side has detected the incident that requires the AMR business is carried out reduction of speed, then directly this AMR business is carried out reduction of speed, and the speed of this AMR business is lowered to adjacent enabled mode, by state and being provided with of timer this AMR business is carried out reduction of speed step by step, to satisfy the smooth transition of speed to this AMR business.How the startup by state setting and timer realizes that reduction of speed will describe in detail below step by step.
If what UE reported is the measurement report that uplink transmission power is lower than the lower limit low threshold, judge that then detected incident requires the AMR business is carried out raising speed, enter step 208, judge whether Iub interface uplink traffic or ascending load of cell exist congestion situation.
For fear of owing to network side responds the situation that causes other congestion condition is caused further deterioration to the message that a class triggers the AMR service speed regulation, network side is before carrying out raising speed to the AMR business, must consider other factors that triggers the AMR service speed regulation, to satisfy the requirement of running Optimization.Therefore, in this step, RNC need judge whether Iub interface uplink traffic or ascending load of cell exist congestion situation, if there is congestion situation, then enter step 209, start timer, the up speed governing state that the AMR business is set is the raising speed state, process ends.Because there are congestion situation in Iub interface uplink traffic or ascending load of cell, therefore in order this congestion situation not to be caused further deterioration, RNC does not temporarily carry out the raising speed of AMR business, but, raise in order to guarantee after congested end, can to respond " transmitting power low lower limit low threshold " incident that congestion period receives scanning frequency rate of going forward side by side, need the up speed governing state of this AMR business to be set to the raising speed state, and startup timer, so that to this AMR business realizing raising speed step by step, detailed process will be introduced below in congested end back.
If RNC judges Iub interface uplink traffic or ascending load of cell and does not have congestion situation, then enter step 210, RNC judges whether to receive that the control rate request of opposite end and request rate are less than targeted rate that will raising speed under the TFO/TrFO state.Because under the TFO/TrFO state, the downstream rate that the upstream rate adjustment of local terminal AMR business will be reacted directly into opposite end AMR business changes, therefore if receive that the control rate request of opposite end and request rate are less than targeted rate that will raising speed, then not to the raising speed of carrying out of AMR business, process ends, otherwise, enter step 211, with the upstream rate rise one-level of AMR business.
Then, enter step 212, judge whether speed governing is successful, if, then entering step 213, the up speed governing state that starts timer and this AMR business is set to raising speed, with the step by step raising speed of realization to this AMR business, otherwise, process ends.
Be not difficult from step 208 to step 213 to find, if the network side joint detects raising speed is carried out in requirement to the AMR business incident, need consider also then whether this AMR satisfies the condition of reduction of speed, if all reduction of speed conditions all do not satisfy, then this AMR business is carried out raising speed, when making that RNC can carry out raising speed to the AMR business at the uplink transmission power according to UE, can not cause further deterioration, satisfy the requirement of running Optimization other congestion condition.
According to the setting of AMR service condition and timer, to the AMR business that triggers by the uplink transmission power of UE step by step speed governing flow process as shown in Figure 3.
In step 301, when timer expiry, judge the up speed governing state of AMR business.If the incident that detects before the network side requires this AMR business is carried out reduction of speed, then the up speed governing state of this AMR business will be set to reduction of speed, if the incident that detects before the network side requires this AMR business is carried out raising speed, then the up speed governing state of this AMR business will be set to raising speed, if the up speed governing state of this AMR business is set to normal condition, then process ends before.
If judge during timer expiry that the up speed governing state of AMR business is a low speed state, then enter step 302, with the upstream rate downward modulation one-level of this AMR business.Then, enter step 303, judge whether speed governing is successful, if, then enter step 304, start timer once more, otherwise, process ends.
Be not difficult to find, as long as network side is not received the new incident that requires the AMR service speed regulation, timer just can not be stopped, the up speed governing state of AMR business can not be changed yet, therefore, when timer expiry, just the upstream rate of AMR business is reduced one-level, and restart timer, to realize reduction of speed step by step this AMR business.Certainly, if network side has been received the new incident that requires the AMR service speed regulation, then will reset the up speed governing state and the timer of AMR business, end this this is to the reduction of speed of the professional upstream rate of this AMR.
If judge during timer expiry that the up speed governing state of AMR business is the raising speed state, then enter step 305, judge whether Iub interface uplink traffic or ascending load of cell exist congestion situation.Because before the AMR business is carried out raising speed once more, must consider other factors that triggers the AMR service speed regulation, to avoid that other congestion condition is caused further deterioration.If judge to have congestion situation, then enter step 306, the AMR business is not carried out raising speed, start timer, process ends once more.
If RNC judges Iub interface uplink traffic or ascending load of cell and does not have congestion situation, then enter step 307, RNC judges whether to receive that the control rate request of opposite end and request rate are less than targeted rate that will raising speed under the TFO/TrFO state.Because under the TFO/TrFO state, the downstream rate that the upstream rate adjustment of local terminal AMR business will be reacted directly into opposite end AMR business changes, therefore if receive that the control rate request of opposite end and request rate are less than targeted rate that will raising speed, then not to the raising speed of carrying out of AMR business, process ends, otherwise, enter step 308, with the upstream rate rise one-level of AMR business.
Then, enter step 309, judge whether speed governing is successful, if, then enter step 310, start timer once more, otherwise, process ends.
Be not difficult to find, as long as network side is owing to receiving that the new incident that requires the AMR service speed regulation changes the setting of the state and the timer of AMR business, so, when timer expiry, will judge whether that all reduction of speed conditions all do not satisfy, if then the upstream rate with the AMR business raises one-level and starts timer once more, realization is to the raising speed step by step of AMR business, to satisfy the smooth transition of speed.
When network side is received the measurement report of uplink transmission power of new UE, reset the up speed governing state of timer and this AMR business according to the up speed governing state of this AMR business, as shown in table 1.
Table 1
In the second execution mode AMR service speed-regulating method of the present invention, the down transmitting power triggering of the incident of raising speed or reduction of speed by NodeB carried out in the detected requirement of network example to the AMR business.
Network side is to obtain the size of NodeB to the down transmitting power of appointment UE, must initiate measurement to NodeB after the professional foundation of AMR is finished and control, as adopting the mode of periodic report.Such as NodeB reports the size to the descending sign indicating number transmitting power of this UE at set intervals, and RNC determines the method for adjustment of the professional downstream rate of this AMR according to itself and the comparison value that thresholding is set, as shown in Figure 4.
Similar with first execution mode, if require the AMR business is carried out raising speed or reduction of speed,, still need the speed of AMR business is adjusted step by step then in order to satisfy the smooth transition of speed by the incident that down transmitting power triggered of NodeB.Therefore, be descending speed governing state parameter of AMR business setting, the down transmitting power measured value that reports according to NodeB and the comparative result of each thresholding this speed governing state respectively are set to normal condition, raising speed state or low speed state, and become the judgement factor of mode of speed regulation next time, as shown in table 2.
Table 2
Specifically, as shown in Figure 5, in step 501, RNC receives from the down transmitting power to specifying UE of NodeB and reports.
Then, enter step 502, RNC judges whether this UE has a plurality of business and deposit, if, then enter step 503, abandon this measurement report, and notice NodeB stops the measurement to the down transmitting power of this UE.This be because, if the AMR of UE business and other business are also deposited, then the speed adjustment of AMR business is less relatively to the influence of resource, and starting power is measured also needs certain resource, therefore, under the voice and packet data concurrent service situation, need not the AMR service speed regulation that carries out the measurement of down transmitting power and cause, with conserve system resources.If it is professional not professional and deposit with other that RNC judges the AMR of this UE, then enter step 504.
In step 504, RNC compares the measurement report received and the power threshold of configuration.If the down transmitting power of measuring then enters step 505 greater than unusual high threshold, the descending speed governing state of AMR business is set to reduction of speed, and enters step 506, with the downstream rate downward modulation one-level of AMR business.
If the measurement report that RNC receives less than unusual high threshold greater than high threshold, then enter step 507, judge whether the professional residing descending speed governing state at present of this AMR is low speed state, if, then get back to step 506, with the downstream rate downward modulation one-level of AMR business.Because when descending transmitting power during greater than unusual high threshold, the descending speed governing state that can fall the AMR business is set to reduction of speed, if therefore the down transmitting power of current measurement is still greater than high threshold, then, realize reduction of speed step by step to this AMR service rate with the downstream rate downward modulation one-level of AMR business.If judge that the professional present descending speed governing state of this AMR not for low speed state, then enters step 508, the descending speed governing state of AMR business is set to normally.
If the measurement report that RNC receives greater than low threshold, then enters step 508 less than high threshold equally, the descending speed governing state of AMR business is set to normally.
If the measurement report that RNC receives less than low threshold greater than unusual low threshold, then enter step 509, judge whether the professional residing descending speed governing state at present of this AMR is the raising speed state, if, then directly enter step 511, otherwise get back to step 508, the descending speed governing state of AMR business is set to normally.
If the measurement report that RNC receives then enters step 510 less than unusual low threshold, the descending speed governing state of AMR business is set to the raising speed state, and enters step 511, judges whether Iub interface downlink traffic or cell downlink load exist congestion situation.For fear of owing to network side responds the situation that causes other congestion condition is caused further deterioration to the message that a class triggers the AMR service speed regulation, network side must be considered other factors that triggers the AMR service speed regulation before the AMR business is carried out raising speed.
If there are congestion situation in Iub interface downlink traffic or cell downlink load, then direct process ends is to avoid the further deterioration to congestion condition; If there is no congestion situation then enters step 512, with the downstream rate rise one-level of AMR business.
Be not difficult to find, in the present embodiment, when network side responds the message of all kinds of triggering AMR service speed regulations equally, can not cause further deterioration to other congestion condition, and,, realized the smooth transition of speed by the AMR service rate is adjusted step by step.
In the 3rd execution mode AMR service speed-regulating method of the present invention, speed governing is carried out in the detected requirement of network side to the AMR business incident is triggered by the congestion situation of Iub interface flow or cell load.
Because when Iub interface flow or cell load take place no matter cause what congested reason is when congested, the incident that is triggered all requires network side that the AMR business is carried out reduction of speed, so can directly carry out reduction of speed to this AMR business.
Specifically, if congested direction is up, then with the direct disposable assurance rate mode that drops to of the upstream rate of AMR business, with alleviate congestion situation as early as possible.Such as, select earlier some UE, drop to the assurance rate mode with the upstream rate of the AMR business of selected UE is directly disposable, if alleviate congestion is not also then selected some UE again, the upstream rate of the AMR business of selected UE is carried out reduction of speed.
Similarly, if congested direction is descending, then with the direct disposable assurance rate mode that drops to of the downstream rate of AMR business; If congested direction is two-way, then respectively with the direct disposable assurance rate mode that drops to of the uplink and downlink speed of AMR business.
In the 4th execution mode AMR service speed-regulating method of the present invention, speed governing is carried out in the detected requirement of network side to the AMR business incident is triggered by the opposite end rate controlled request of AMR business.
Specifically, as shown in Figure 6, in step 601, RNC receives the opposite end rate controlled request that Iu User Plane (Iuinterface User Plane is called for short " IuUP ") is transmitted.Specifically, under the TFO/TrFO state, the downstream rate that the upstream rate adjustment of local terminal AMR business will be reacted directly into opposite end AMR business changes, if therefore the downstream rate of AMR business will be adjusted in the opposite end, will directly send the downstream rate control request to local terminal RNC.
Then, enter step 602, RNC judges whether the current business support mode is that circuit switched domain service and IuUP version number are 2, if not, then directly enter step 609, return the rate controlled failure response by IuUP to the opposite end, otherwise, enter step 603.
In step 603, RNC compares the upstream rate of opposite end rate request and current AMR business.If the opposite end rate request equals the upstream rate of current AMR business, then directly enter step 606, return the rate controlled success response by IuUP to the opposite end.
If in step 603, RNC judges the upstream rate of opposite end rate request less than current AMR business, then enter step 604, find the maximum admissible rate that is less than or equal to request rate, the upstream rate of AMR business is adjusted to this maximum admissible rate, to satisfy the adjustment requirement of opposite end downstream rate as soon as possible.
Then, enter step 605, judge whether speed governing is successful, if success then enters step 606, returns the rate controlled success response by IuUP to the opposite end, otherwise, enter step 609, return the rate controlled failure response by IuUP to the opposite end.
If in step 603, RNC judges the upstream rate of opposite end rate request greater than current AMR business, then enter step 607, RNC judges whether Iub interface uplink traffic or ascending load of cell exist congestion situation, if then the upstream rate of AMR business is not carried out raising speed, directly enter step 609, return the rate controlled failure response by IuUP to the opposite end, otherwise, step 608 entered.
In step 608, RNC judges whether the uplink transmission power of UE is higher than up high threshold, if, then enter step 609, return the rate controlled failure response to the opposite end by IuUP, otherwise, get back to step 604, find the maximum admissible rate that is less than or equal to request rate, the upstream rate of AMR business is adjusted to this maximum admissible rate, to satisfy the adjustment requirement of opposite end downstream rate as soon as possible.
Be not difficult to find, in the present embodiment, require network side that the AMR business is carried out the incident of raising speed if the opposite end rate controlled request of AMR business has triggered, then network side need judge whether that also all reduction of speed conditions all do not satisfy, to avoid that other congestion condition is caused further deterioration.
The AMR service speed regulation system of fifth embodiment of the invention comprises: detection module is used to detect raising speed or reduction of speed are carried out in requirement to the AMR business incident; Judge module is used to judge whether the AMR business satisfies the reduction of speed condition; And speed adjusting module, be used for the AMR business is carried out raising speed or reduction of speed.
Specifically, if detection module detects raising speed is carried out in requirement to the AMR business incident, then indicate judge module to judge whether this AMR business satisfies the reduction of speed condition, all do not satisfy, then indicate speed adjusting module that this AMR business is carried out raising speed if this judge module is judged all reduction of speed conditions; If detection module detects requirement the AMR business is carried out the incident of reduction of speed, then directly indicate speed adjusting module that this AMR business is carried out reduction of speed.
Wherein, triggering the factor that requires the AMR business to be carried out the incident of raising speed or reduction of speed comprises: the opposite end rate controlled request of the uplink transmission power of UE, the down transmitting power of NodeB, Iub interface flow or cell load and AMR business.Make when the network side of controlling the AMR service rate can respond the message of all kinds of triggering AMR service speed regulations, can not cause further deterioration, satisfied the requirement of running Optimization other congestion condition.
If the triggering factors that speed adjusting module is carried out speed governing to the AMR business is the uplink transmission power of UE or the down transmitting power of NodeB, then this speed adjusting module is carried out speed governing step by step to this AMR business, to satisfy the smooth transition of speed; If the triggering factors that speed adjusting module is carried out speed governing to the AMR business is the congestion situation of Iub interface or cell load, then this speed adjusting module is directly adjusted to assurance speed with the speed of this AMR business, with alleviate congestion situation as early as possible; If the triggering factors that speed adjusting module is carried out speed governing to the AMR business is the opposite end rate controlled request of AMR, then this speed adjusting module is directly adjusted to the speed of this AMR business the maximum admissible rate that is less than or equal to the opposite end request rate, to satisfy the rate controlled request of opposite end as early as possible.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (12)
1. an adaptive multi-rate service speed-regulating method is characterized in that, comprises following steps:
If network side detects requirement adaptive multi-rate service is carried out the incident of raising speed, and all reduction of speed conditions do not satisfy all, then this adaptive multi-rate service is carried out raising speed;
If network side detects requirement adaptive multi-rate service is carried out the incident of reduction of speed, then directly this adaptive multi-rate service is carried out reduction of speed.
2. adaptive multi-rate service speed-regulating method according to claim 1 is characterized in that, triggers factor that described requirement carries out the incident of raising speed or reduction of speed to adaptive multi-rate service and comprises one of following or its combination in any:
The opposite end rate controlled request of Iub interface flow, cell load and described adaptive multi-rate service between the uplink transmission power of subscriber equipment, the down transmitting power of base-station node, base-station node and the radio network controller.
3. adaptive multi-rate service speed-regulating method according to claim 2, it is characterized in that, if described network side is the uplink transmission power of described subscriber equipment or the down transmitting power of described base-station node to the triggering factors that described adaptive multi-rate service carries out speed governing, then this network side carries out speed governing step by step to this adaptive multi-rate service.
4. adaptive multi-rate service speed-regulating method according to claim 3 is characterized in that, described network side carries out speed governing step by step to described adaptive multi-rate service in the following manner:
Described network side is when detecting requirement this adaptive multi-rate service is carried out the incident of raising speed or reduction of speed, for this adaptive multi-rate service is provided with corresponding raising speed or low speed state, and startup timer, if detected is that the incident of raising speed is carried out in requirement and all reduction of speed conditions all do not satisfy, then the speed with this adaptive multi-rate service raises one-level, if detected is the incident that reduction of speed is carried out in requirement, then directly the speed of this adaptive multi-rate service is reduced one-level;
When described timer expiry, if being raising speed state and all reduction of speed conditions, all do not satisfy described adaptive multi-rate service, then the speed with this adaptive multi-rate service raises one-level, and restarts this timer;
When described timer expiry,, then directly the speed of this adaptive multi-rate service is reduced one-level, and restart this timer if described adaptive multi-rate service is a low speed state.
5. adaptive multi-rate service speed-regulating method according to claim 2, it is characterized in that, if described network side is described Iub interface flow or cell load to the triggering factors that described adaptive multi-rate service carries out speed governing, then this network side is directly adjusted to assurance speed with the speed of this adaptive multi-rate service.
6. adaptive multi-rate service speed-regulating method according to claim 2, it is characterized in that, if described network side is the opposite end rate controlled request of described adaptive multi-rate service to the triggering factors that described adaptive multi-rate service carries out speed governing, then this network side is directly adjusted to the speed of this adaptive multi-rate service the maximum admissible rate that is less than or equal to the opposite end request rate.
7. adaptive multi-rate service speed-regulating method according to claim 2 is characterized in that, described network side obtains the uplink transmission power of described subscriber equipment in the following manner:
Described network side is provided with the report condition of uplink transmission power in advance for described subscriber equipment;
Described subscriber equipment is measured the uplink transmission power of self, and reports to described network side when this uplink transmission power satisfies described report condition.
8. adaptive multi-rate service speed-regulating method according to claim 2 is characterized in that, described network side obtains the down transmitting power of described base-station node in the following manner:
Described base-station node is measured the down transmitting power to described subscriber equipment, and periodically reports described network side.
9. according to claim 6 or 7 described adaptive multi-rate service speed-regulating methods, it is characterized in that, if described adaptive multi-rate service and other business are also deposited, then described network side abandons the transmit power data that described subscriber equipment or described base-station node report, and notifies this subscriber equipment or this base-station node to stop measurement to transmitting power.
10. an adaptive multi-rate service governing system is characterized in that, comprises:
Detection module is used to detect raising speed or reduction of speed are carried out in requirement to adaptive multi-rate service incident;
Judge module is used to judge whether described adaptive multi-rate service satisfies the reduction of speed condition;
Speed adjusting module is used for described adaptive multi-rate service is carried out raising speed or reduction of speed;
If described detection module detects raising speed is carried out in requirement to described adaptive multi-rate service incident, then indicate described judge module to judge whether this adaptive multi-rate service satisfies the reduction of speed condition, if this judge module is judged all reduction of speed conditions and is not all satisfied, then indicates described speed adjusting module that this adaptive multi-rate service is carried out raising speed;
If described detection module connects and detects requirement described adaptive multi-rate service is carried out the incident of reduction of speed, then directly the described speed adjusting module of indication is carried out reduction of speed to this adaptive multi-rate service.
11. adaptive multi-rate service governing system according to claim 10 is characterized in that, triggers factor that described requirement carries out the incident of raising speed or reduction of speed to adaptive multi-rate service and comprises one of following or its combination in any:
The opposite end rate controlled request of the uplink transmission power of subscriber equipment, the down transmitting power of base-station node, Iub interface flow or cell load and described adaptive multi-rate service.
12. adaptive multi-rate service governing system according to claim 10 is characterized in that,
If described speed adjusting module is the uplink transmission power of described subscriber equipment or the down transmitting power of described base-station node to the triggering factors that described adaptive multi-rate service carries out speed governing, then this speed adjusting module is carried out speed governing step by step to this adaptive multi-rate service;
If described speed adjusting module is the congestion situation of described Iub interface or cell load to the triggering factors that described adaptive multi-rate service carries out speed governing, then this speed adjusting module is directly adjusted to assurance speed with the speed of this adaptive multi-rate service;
If described speed adjusting module is the opposite end rate controlled request of described adaptive multi-rate service to the triggering factors that described adaptive multi-rate service carries out speed governing, then this speed adjusting module is directly adjusted to the speed of this adaptive multi-rate service the maximum admissible rate that is less than or equal to the opposite end request rate.
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| WO2010145301A1 (en) * | 2009-09-16 | 2010-12-23 | 中兴通讯股份有限公司 | Method and apparatus for adaptive multi-rate adjustment |
| CN102752809A (en) * | 2011-04-21 | 2012-10-24 | 联芯科技有限公司 | Uplink adaptive multiple rate (AMR) regulation and control method and system |
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