CN102740379A - Method and system for optimization of quality of server and network element of network side - Google Patents
Method and system for optimization of quality of server and network element of network side Download PDFInfo
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Abstract
The invention discloses a method and system for optimization of the quality of service (QoS) and a network element of a network side. The QoS optimization method comprises the following steps that: a network element of a network side issues packet data convergence protocol (PDCP) layer measurement control information to a terminal; the network element of the network side receives measurement result information that is reported after measurement on a data packet of a PDCP layer by the terminal according to the PDCP layer measurement control information and carries out optimization on the QoS of the network according to the measurement result information. According to the invention, the QoS of the system is improved and the user experience is enhanced.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of optimization method and system, network side network element of service quality.
Background technology
Service quality (Quality of Service abbreviates QoS as) is a kind of security mechanism of network, is with a kind of technology that solves problems such as network delay and obstruction.For Network, service quality comprises the time delay of transfer bandwidth, transmission, the packet loss of data etc.In network, can improve service quality through guaranteeing the measures such as time delay, the packet loss that reduces data and delay variation that transfer bandwidth, reduction transmit.Internet resources are always limited, as long as there is the situation of grabbing Internet resources, the requirement of service quality will occur.Service quality is relative Network, in the service quality that guarantees certain type of business, possibly be exactly in other professional service quality of infringement.For example, under the fixing situation of network total bandwidth, if the bandwidth that certain type of business takies is many more, other professional employable bandwidth are just few more so, and the business that takies many bandwidth so just may influence other professional uses.Therefore, network manager need come Internet resources are reasonably planned and distributed, thereby Internet resources are efficiently utilized according to the characteristics of miscellaneous service.
Grouping system (Evolved Packet System in evolution; Abbreviate EPS as) in, the basic granularity of QoS control is to carry (Bearer), promptly; All data traffics on the same bearer will obtain identical QoS and ensure, dissimilar carryings provides different QoS to ensure.Carry the level qos parameter and comprise QoS class identifier (QoS Class Identifier; Abbreviate QCI as), distribute and maintenance priority (Allocation and Retention Priority; Abbreviate ARP as), guarantee speed (Guaranteed Bit Rate; Abbreviate GBR as), maximum bit rate (Maximum Bit Rate abbreviates MBR as) and/or Aggregate Maximum Bit Rate (Aggregate Maximum Bit Rate abbreviates AMBR as).In wireless access network (Radio Access Network abbreviates RAN as) side, the corresponding EPS of a radio bearer (Radio Bearer abbreviates RB as) carries.
In user plane; A corresponding PDCP (Packet Data Convergence Protocol the abbreviates PDCP as) layer entity of each RB, Radio Link control (Radio Link Control abbreviates RLC an as) entity; And by media interviews control (Medium Access Control; Abbreviating MAC as) layer dispatches, and the different entities of user plane guarantees the transfer of data of RB jointly, thereby guarantees user's QoS demand.Wherein, the concrete service that provides of PDCP sublayer can comprise: carry out a compression and decompression; The encrypt/decrypt of user plane data and control plane data; PDCP is provided sequence number, supplies radio bearer use etc.The function that the RLC sublayer is supported comprises: transmit rlc protocol data cell (Protocol Data Unit abbreviates PDU as); Segmentation, combination and reorganization RLC service data unit (Service Data Unit abbreviates SDU as) etc.Some major functions that media access control sublayer provides comprise: the mapping between logic channel and the transmission channel; Through the automatic repeat requests of mix (Hybrid Automatic Repeat Request abbreviates HARQ as); Between the logic channel of subscriber equipment (User Equipment abbreviates UE as), carry out processed; Between UE, carry out processed by dynamic dispatching; Transformat is selected; The priority of logical channels management.In addition, RRM (Radio Resource Management abbreviates RRM as) strategies such as the admittance control of wireless side, mobility, dispatching algorithm also are used for guaranteeing user's QoS demand.
Yet, in correlation technique,, can't satisfy the problem of user's QoS demand through regular meeting's appearance because that the qos parameter of network side configuration and algorithm and professional demand are mated is improper, to this problem, effective solution is not proposed as yet at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of prioritization scheme of service quality, to solve at least in the above-mentioned correlation technique owing to the qos parameter of network side configuration and the improper problem that causes the QoS demand that can't satisfy the user of demand coupling of algorithm and business.
To achieve these goals, according to an aspect of the present invention, a kind of optimization method of service quality is provided.
Optimization method according to service quality QoS of the present invention may further comprise the steps: the network side network element issues PDCP layer measuring control information to the terminal; The network side network element receives the measurement result information that reports after the terminal is measured the packet of PDCP layer according to PDCP layer measuring control information, and is optimized according to the QoS of this measurement result information to network.
Further, the network side network element issues PDCP layer measuring control information through chain of command first specific messages to the terminal; The terminal is through the chain of command second specific messages reporting measurement object information.
Further; The network side network element receives before the measurement result information of terminal to report; This method also comprises: measurement mechanism is confirmed according to PDCP layer measuring control information in the terminal; Wherein, measurement mechanism comprises one of following: periodically the reporting of reporting measurement object information, Event triggered measurement result information, terminal carry out that the DPCP layer is measured and reporting of measurement result information is Event triggered; The terminal is measured the packet of PDCP layer, and measurement result information is reported according to the measurement mechanism of confirming.
Further; The terminal reports measurement result information and comprises: the indication that the terminal has the measurement result informational needs to report is sent to the network side network element in the terminal; During the reporting measurement object information, the terminal is to network side reported by network elements measurement result information in network side network element requesting terminal; Perhaps, can't confirm from PDCP layer measuring control information under the situation of mode of reporting measurement object information that the terminal is decided in its sole discretion when to network side reported by network elements measurement result information at the terminal.
One of below further, PDCP layer measuring control information comprises at least: the object procedure of target measurement amount, measurement, measurement and report information, measurement triggering information.
One of further, the target measurement amount comprises the performance index and/or the professional sign of measurement of PDCP bag, wherein, below the performance index of PDCP bag comprise at least: throughput, packet loss, packet delay; One of the business of measurement is a uplink service, below its sign comprises at least: the grouping system EPS bearing identification of evolution, radio bearer sign, QoS class identifier.
Further; The network side network element receives before the measurement result information of terminal to report; When the terminal was measured the packet of PDCP layer, the metering system of packet delay was: the time t1 of the PDCP layer of the packet incoming terminal of terminal records PDCP layer and network side network element receive the time t2 of the affirmation message of returning to the terminal behind this packet; The terminal deducts t1 through t2, draws packet delay.
One of further, the object procedure of measurement is the residing process status in terminal when measuring, below comprising at least: handoff procedure, radio resource control RRC are rebuild upright process, regular traffic process.
Further; Measurement and report information is the cycle of terminal to report measurement result information or the incident of triggering terminal reporting measurement object information; One of below wherein, this incident comprises at least: the memory space through the scheduled time, measurement result after measurement starts is lower than predetermined threshold, measures service ending greater than predetermined threshold, terminal electric quality.
Further, measurement triggering information is that the trigger condition that PDCP measures is carried out at the terminal, and wherein, one of below trigger condition comprises at least: radio signal quality is lower than the satisfaction that predetermined threshold, terminal be in presumptive area, user and is lower than predetermined requirement.
Further, the network side network element issues PDCP layer measuring control information to the terminal and comprises: the network side network element is made amendment to PDCP layer measuring control information, and amended PDCP layer measuring control information is handed down to the terminal; Perhaps, the network side network element carries the sign that indicating terminal stops the measurement target measuring amount in PDCP layer measuring control information.
One of below further, measurement result information comprises at least: the mobility status at PCDP measurement result, radio signal quality, temporal information, location information of terminals, terminal, residing process status when the terminal is measured with the PDCP corresponding service qos parameter information of measuring, measurement.
Further; The network side network element is optimized the QoS of network according to the PDCP measurement result and comprises: the network side network element is optimized according to the configuration parameter and/or the wireless resource management algorithm of PDCP measurement result to network; Wherein, the configuration parameter of network comprises the time that abandons of PDCP packet.
To achieve these goals, according to a further aspect in the invention, a kind of network side network element is provided also.
According to network side network element of the present invention, comprising: issue module, be used for issuing packet data convergence protocol PDCP layer measuring control information to the terminal; Receiver module is used for the measurement result information that reports after receiving terminal is measured the packet of PDCP according to PDCP layer measuring control information; And the service quality QoS optimal module, be used for being optimized according to the QoS of measurement result information to network.
Further, in Long Term Evolution LTE system, above-mentioned network side network element is evolved base station eNB; In UMTS UMTS, above-mentioned network side network element is a radio network controller (RNC).
To achieve these goals, in accordance with a further aspect of the present invention, a kind of optimization system of service quality is provided also.
According to the optimization system of service quality QoS of the present invention, comprise terminal and above-mentioned network side network element, wherein, the terminal comprises: measurement module is used for according to from the PDCP layer measuring control information of network side network element the packet of PDCP being measured; And reporting module, be used for measuring the back to network side reported by network elements measurement result information at measurement module.
Through the present invention; Adopt the network side network element to carry out the mode that QoS optimizes according to the measurement data of terminal PDCP layer; Solved in the correlation technique owing to the qos parameter of network side configuration and the improper problem that causes the QoS demand that can't satisfy the user of demand coupling of algorithm and business; Increase the QoS quality of system, improved user experience.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the optimization method of the service quality of the embodiment of the invention;
Fig. 2 is the structured flowchart according to the network side network element of the embodiment of the invention;
Fig. 3 is the structured flowchart according to the optimization system of the service quality of the embodiment of the invention;
Fig. 4 is the schematic flow sheet that reports the PDCP measurement result according to the periodicity of the embodiment of the invention one;
Fig. 5 is the schematic flow sheet according to the reporting events PDCP measurement result of the embodiment of the invention two;
Fig. 6 is according to the Event triggered measurement of the embodiment of the invention three and the schematic flow sheet of Event triggered reporting measuring result.
Embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
According to the embodiment of the invention, a kind of optimization method of service quality is provided.Fig. 1 is the flow chart according to the optimization method of the service quality of the embodiment of the invention, and is as shown in Figure 1, and this method may further comprise the steps:
Step S102, the network side network element issues PDCP layer measuring control information to the terminal;
Step S104, network side network element receive the measurement result information that reports after the terminal is measured the packet of PDCP layer according to PDCP layer measuring control information, and are optimized according to the QoS of measurement result information to network.
Pass through above-mentioned steps; Adopt the network side network element to issue PDCP layer measuring control information to the terminal; And carry out the mode that QoS optimizes according to the measurement data of the PDCP layer of terminal to report; Solve the qos parameter and algorithm and the professional improper problem that causes the QoS demand that can't satisfy the user of demand coupling that dispose owing to network side in the correlation technique, increased the QoS quality of system, improved user experience.
For example, the network side network element issues PDCP layer measurement control order, after the PDCP measurement is carried out at the terminal, and the reporting measurement result, the network side network element is optimized according to the QoS of the measurement result that reports to network.
Preferably, the network side network element can issue PDCP layer measuring control information to the terminal through chain of command first specific messages; The chain of command second specific messages reporting measurement object information can be passed through in the terminal.
For example, in implementation process, first specific messages can be wireless resource control connection reconfiguration (RRCConnectionReconfiguration) message, and second specific messages can be measurement report (MeasurementReport) message.
For example, the network side network element can issue PDCP layer measuring control information to the terminal through Radio Resource control (Radio Resource Control abbreviates RRC as) means of signaling; The terminal also can be through the RRC means of signaling to network side reported by network elements measurement result information.
Preferably; Before step S104; Measurement mechanism can be confirmed according to PDCP layer measuring control information in the terminal; Wherein, measurement mechanism comprises one of following: periodically the reporting of reporting measurement object information, Event triggered measurement result information, terminal carry out that the DPCP layer is measured and reporting of measurement result information is Event triggered; The terminal is measured the packet of PDCP layer, and measurement result information is reported according to the measurement mechanism of confirming.For example, the mechanism of terminal measurement PDCP layer can adopt periodically modes such as reporting measurement result, event mode reporting measurement result, Event triggered measurement and Event triggered reporting measurement result.
In implementation process, be Event triggered if do not have the DPCP layer measurement at clear and definite terminal in the PDCP layer measuring control information, after then the terminal receives this PDCP layer measuring control information, the packet of PDCP layer is measured with regard to carrying out immediately.
Preferably; The terminal reports measurement result information and comprises: the indication that the terminal has the measurement result informational needs to report is sent to the network side network element in the terminal; During the reporting measurement object information, the terminal is to network side reported by network elements measurement result information in network side network element requesting terminal; Perhaps, can't confirm from PDCP layer measuring control information under the situation of mode of reporting measurement object information that the terminal is decided in its sole discretion when to network side reported by network elements measurement result information at the terminal.
One of preferably, in step S102, below PDCP layer measuring control information can comprise at least: the object procedure of target measurement amount, measurement, measurement and report information, measurement triggering information.
For example, the terminal can according to receive from measurement and report information and measurement triggering information in the PDCP layer measuring control information of network side network element, confirm the mode that the PDCP layer is measured and reported.
One of preferably, the target measurement amount can comprise the performance index and/or the professional sign of measurement of PDCP bag, wherein, below the performance index of PDCP bag comprise at least: throughput, packet loss, packet delay; One of the measurement business here is meant uplink service, below its sign comprises at least: EPS bearing identification, radio bearer sign, QoS class identifier.
Preferably; Before step S104; When the terminal is measured the packet of PDCP layer; The metering system of packet delay can for: at first, the time t1 of the PDCP layer of the packet incoming terminal of terminal records PDCP layer and network side network element receive the time t2 of the affirmation message of returning to the terminal behind this packet; Then, the terminal deducts t1 through t2, can draw packet delay.
For example, in Long Term Evolution (Long Term Evolution abbreviates LTE as) system; The metering system of PDCP packet delay is: the time of advent and the evolved base station (EvolvedNodeB of terminal records PDCP bag; Abbreviate eNB as) return the time that this bag is confirmed (Acknowledgment abbreviates ACK as), then; Deduct the former with the latter, then PDCP packet delay for measuring.
Preferably, the object procedure of measurement can be when measuring the residing process status in terminal, one of below comprising at least: handoff procedure, RRC rebuild upright process, regular traffic process.This method realizes simple, workable.
Preferably; Measurement and report information can be the cycle of terminal to report measurement result information or the incident of triggering terminal reporting measurement object information; One of below wherein, this incident comprises at least: the memory space through the scheduled time, measurement result after measurement starts is lower than predetermined threshold, measures service ending greater than predetermined threshold, terminal electric quality.Here the memory space of measurement result is meant that the file size of carrying out the measurement result after PDCP measures in the terminal is at the shared memory space of end side; This memory space usually can be less than certain limit; Promptly; Greater than this limit the time, will triggering terminal to network side reported by network elements measurement result information.
In implementation process, the mode that measurement and report information is corresponding different can be the cycle of measurement and report or the incident of reporting measuring result, and the terminal can be according to the mode that reports of the definite measurement result information that should adopt of this measurement and report information.For example, if what comprise in this measurement and report information is the cycle, indication cycle's property reporting measurement object information then is if what comprise in this measurement and report information is incident, then after this incident satisfies, again to network side reported by network elements measurement result information.
Preferably, measurement triggering information can be carried out the trigger condition that PDCP measures for the terminal, and wherein, one of below this trigger condition comprises at least: radio signal quality is lower than the satisfaction that predetermined threshold, terminal be in presumptive area, user and is lower than predetermined requirement.In implementation process; This trigger condition typically refers to the terminal and begins to carry out the condition (that is, trigger event) that PDCP measures, promptly; The terminal is after receiving the PDCP layer measuring control information of network side network element; Not to begin immediately to measure, but after waiting this trigger condition to satisfy, just begin to carry out the measurement of PDCP layer.
For example, measurement triggering information can be lower than a certain thresholding for time, the radio signal quality that triggering terminal is measured, the satisfaction that arrives a certain band of position, user does not reach predetermined and requires etc. wherein one or multinomial.
Preferably, in step S102, the network side network element can be made amendment to PDCP layer measuring control information, and amended PDCP layer measuring control information is handed down to the terminal; Perhaps, the network side network element carries the sign that indicating terminal stops the measurement target measuring amount in PDCP layer measuring control information.
For example, the network side network element can reshuffle or stop the PDCP layer measurement at terminal, that is, the content of PDCP layer measuring control information is made amendment, or indicating terminal stops the measurement to the PDCP layer in PDCP layer measuring control information.
One of below preferably, measurement result information can comprise at least: the mobility status at PCDP measurement result, radio signal quality, temporal information, location information of terminals, terminal, residing process status when the terminal is measured with the PDCP corresponding service qos parameter information of measuring, measurement.This method can improve the validity of measurement result information.In implementation process, the mobility status at terminal can be the translational speed grade at terminal, for example, and low speed, middling speed, at a high speed.
Preferably; In step S104; The network side network element is optimized and can comprises according to the QoS of PDCP measurement result to network: the network side network element is optimized according to the configuration parameter and/or the wireless resource management algorithm of PDCP measurement result to network; Wherein, the configuration parameter of network comprises the time that abandons of PDCP packet.This method can increase the flexibility of system.
Corresponding to said method, the embodiment of the invention also provides a kind of network side network element.Fig. 2 is the structured flowchart according to the network side network element of the embodiment of the invention, and is as shown in Figure 2, and this network side network element 20 comprises: issue module 22, be used for issuing PDCP layer measuring control information to the terminal; Receiver module 24 is used for the measurement result information that reports after receiving terminal is measured the packet of PDCP according to PDCP layer measuring control information; And QoS optimal module 26, be coupled to receiver module 24, be used for being optimized according to the QoS of measurement result information to network.
Through network side network element 20; Employing issues PDCP layer measuring control information to the terminal; And carry out the mode that QoS optimizes according to the measurement data of the PDCP layer of terminal to report; Solve the qos parameter and algorithm and the professional improper problem that causes the QoS demand that can't satisfy the user of demand coupling that dispose owing to network side in the correlation technique, increased the QoS quality of system, improved user experience.
Preferably, in the LTE system, network side network element 20 is eNB; In UMTS (Universal Mobile Telecommunications System abbreviates UMTS as), network side network element 20 is radio network controller (Radio Network Controller abbreviates RNC as).
According to the embodiment of the invention, the optimization system of a kind of QoS is provided also.Fig. 3 is the structured flowchart according to the optimization system of the service quality of the embodiment of the invention; As shown in Figure 3; This system comprises terminal 32 and network side network element 20; Wherein, terminal 32 comprises: measurement module 322 is used for according to from the PDCP layer measuring control information of network side network element 20 packet of PDCP being measured; And reporting module 324, be coupled to measurement module 322, be used for measuring the back to network side network element 20 reporting measurement object informations at measurement module 322.
Be elaborated below in conjunction with preferred embodiment and accompanying drawing implementation procedure to the foregoing description.
Embodiment one
Present embodiment reports with the end side periodic measurement and is example, and the optimization method of a kind of QoS is provided.The business of supposing the measurement in the present embodiment all is up business, and the terminal is in the link attitude in network element 1 (for example, eNB or RNC), and the sub-district of network element 1 is that the terminal provides business.
Fig. 4 is the schematic flow sheet that reports the PDCP measurement result according to the periodicity of the embodiment of the invention one, and is as shown in Figure 4, and this flow process may further comprise the steps:
Step S402, based on optimization or other demands of QoS, network element 1 issues PDCP layer measuring control information to the terminal.Wherein, the measuring control information object procedure, measurement and report information etc. wherein that can comprise target measurement amount, the measurement of measurement or multinomial.In implementation process; The measuring amount that the target measurement amount can comprise concrete PDCP protocol layer (for example; In the indexs such as the throughput of PDCP bag, packet loss, packet delay one or multinomial), can also comprise and will measure professional sign that said sign can be EPS bearer id or RB id or QCI; Perhaps do not carry service identification, then acquiescence is that all business of terminal are all measured; The object procedure of measuring can be the process status at the terminal measured, and for example, the terminal is in handoff procedure, RRC rebuilds upright process, regular traffic process etc.; Measurement and report information can be the terminal measurement result report mode, for example,, then in measurement and report information, contain the cycle of reporting measuring result if periodically report.
Preferably, network element 1 can be through arriving the terminal through the control information of chain of command specific messages sending measuring under the RRC means of signaling.For example, adopt wireless resource control connection reconfiguration (RRCConnectionReconfiguration) message or a new independent message.
Step S404, the terminal is measured the packet of PDCP layer according to the measuring control information of receiving immediately.For example, the target measurement amount is the throughput, packet loss, packet delay of PDCP bag etc.The terminal can be measured the target measurement amount according to the demand of measuring.Wherein, the account form of throughput can be sent the number of bag for: the PDCP layer at terminal in some cycles; The ratio of the bag quantity that the account form of packet loss can be confirmed ACK (ACKNOWLEDGE) for not receiving of sending of: terminal and whole bag quantity of transmission; The moment that the metering system of packet delay can arrive for the up PDCP bag of: terminal records; With opposite end network side network element (for example; ENB) receive this PDCP bag and return the moment of confirming ACK, these two constantly the time difference be exactly the PDCP bag time of delay (that is, the time of delay=eNB of PDCP bag return this bag ACK time-time of advent that terminal PDCP wraps); Wherein, the time of the packet incoming terminal PDCP layer that is meant application layer the time of advent of terminal PDCP bag.
Preferably, the measurement result of each PDCP bag can be write down in the terminal, and it is average also can in a measuring period, to do sums, and just calculates average throughput, average packet loss ratio, the average delay time of all PDCP bags in the measuring period.Can be included in the measuring control information measuring period.
Preferably, the terminal belongs to the measurement of Serving cell wireless quality simultaneously, can also carry out the measurement of the geographical location information at terminal.
Step S406, the reporting measuring result that will measure the PDCP layer to the network side network element of terminal periodic property.In implementation process; User terminal (User Equipment; Abbreviate UE as) can said PDCP layer reporting measuring result be arrived network element 1 through adopting the RRC means of signaling, for example, can adopt measurement report (MeasurementReport) message or a new independent message.Preferably, can comprise in the information such as process at radio signal quality, qos parameter information, temporal information, positional information, mobility status, place, terminal one or multinomial in the said measurement result.Wherein, radio signal quality can be the pilot signal quality or the channel quality indication (Channel Quality Indicator abbreviates CQI as) of sub-district; Qos parameter information can be the PDCP corresponding service qos parameter of measuring (for example, qos parameter comprises QCI and rate information, can also contain the address and explain agreement (Address Resolution Protocol abbreviates ARP as)); Temporal information can be absolute time or the relative time of measuring; Positional information can comprise residing geographical position, terminal; Mobility status can be the translational speed grade at terminal (for example, low speed, middling speed, at a high speed); The process at place, terminal can refer to that handoff procedure, RRC rebuild upright process, regular traffic process etc.
Preferably, network element 1 can reshuffle or stop the measurement of PDCP.For example, network element 1 can be made amendment to object procedure, the measurement and report information of target measurement amount, measurement, perhaps stops part or all of measuring amount.Network element 1 sends measures reconfiguration information to the terminal, and the terminal is measured or stopped measuring according to measuring reconfiguration information.
Through said method, the measurement of PDCP layer can be carried out according to the measurement demand that the network side network element issues in the terminal, and looks for the network side network element to reporting measuring result; The network side network element can carry out the network optimization according to the measurement result of the PDCP layer of terminal to report, improves user's QoS.Preferably, the network optimization can comprise the optimization of network configuration parameters and the optimization of wireless resource management algorithm, and for example, that can optimize the PDCP packet abandons time parameter DiscardTimer.
Embodiment two
Present embodiment is an example with the measurement and report of Event triggered, and the prioritization scheme of a kind of QoS is provided.The business of supposing the measurement in the present embodiment all is up business, and the terminal is in the link attitude in network element 1, and the sub-district of network element 1 is that the terminal provides business.
Fig. 5 is that as shown in Figure 5, this flow process may further comprise the steps according to the schematic flow sheet of the reporting events PDCP measurement result of the embodiment of the invention two:
Step S502, based on optimization or other demands of QoS, network element 1 issues PDCP layer measuring control information to the terminal.Wherein, said measuring control information comprises the target measurement amount of measurement, the object procedure, measurement and report information etc. that can also contain measurement wherein or multinomial.The target measurement amount comprises the measuring amount of concrete PDCP protocol layer; Refer in the indexs such as throughput, packet loss, packet delay of PDCP bag one or multinomial; Can also contain and to measure professional sign; Said sign can be EPSbearer id or RB id or QCI, does not perhaps carry service identification, and then acquiescence is that all business of terminal are all measured.The object procedure of measuring is meant the process status at the terminal of measuring, and for example, the terminal is in handoff procedure, RRC rebuilds upright process, regular traffic process etc.Measurement and report information is meant the report condition of the measurement result at terminal; For example; If event mode reports, measurement and report information can be higher than for the throughput of the PDCP in some cycles bag a certain thresholding (such as, 5kbits), packet loss be higher than a certain thresholding (such as; Thresholding is 1%), time delay greater than a certain thresholding (such as; Thresholding is 5ms), radio signal quality be lower than a certain thresholding (such as, thresholding be-85dbm) etc. in the measurement and report incident or multinomial satisfies, then can triggering terminal PDCP measurement result report.
Preferably; Network element 1 can for example adopt wireless resource control connection reconfiguration (RRCConnectionReconfiguration) message or a new independent message through arriving the terminal through the control information of chain of command specific messages sending measuring under the RRC means of signaling.
Step S504, the terminal is measured the packet of PDCP layer according to the measuring control information of receiving immediately.Wherein, The metering system of packet delay is: the moment that the up PDCP bag of terminal records arrives; (for example, eNB) receive this PDCP and wrap and return the moment of confirming ACK, these two the time differences are exactly the time of delay of PDCP bag constantly with opposite end network element 1; Just (eNB return this bag ACK time-time of advent of terminal PDCP bag), the time of the packet incoming terminal PDCP layer that is meant application layer the time of advent of terminal PDCP bag; Throughput, the packet loss of PDCP bag can be measured according to the demand of measuring in the terminal.The calculating of throughput: (the transmission bag number in the PDCP layer some cycles at terminal); The calculating of packet loss: (ratios of the bag quantity of not receiving ACK that send at the terminal and whole bag quantity of transmission).
Preferably, the measurement result of each PDCP bag can be write down in the terminal, and it is average also can in a measuring period, to do sums, and just calculates average delay time, average throughput, the average packet loss ratio of all PDCP bags in the measuring period.Can be included in the measuring control information measuring period.The terminal belongs to the measurement of Serving cell wireless quality simultaneously, can also carry out the measurement of the geographical location information at terminal.
Step S506, the condition of reporting measuring result satisfies.For example; The throughput of the PDCP bag in the some cycles be higher than a certain thresholding (such as; 5kbits), packet loss be higher than a certain thresholding (such as; Thresholding is 1%), time delay greater than a certain thresholding (such as, thresholding is 5ms), radio signal quality be lower than a certain thresholding (such as, thresholding be-85dbm) etc.
Step S508, if satisfied the condition of reporting measuring result, then the terminal will measure the PDCP layer reporting measuring result to network side, network side carries out the network optimization according to the PDCP measurement result of terminal to report, improves user's QoS.In implementation process, UE can for example, can adopt measurement report (MeasurementReport) message or a new independent message through adopting the said PDCP layer of RRC means of signaling bag reporting measuring result to network element 1.Preferably, can also comprise radio signal quality, qos parameter information, temporal information, positional information, mobility status in the said measurement result, in the information such as process at terminal place one or multinomial.Wherein, radio signal quality can be the pilot signal quality or the channel quality indicator (CQI) of sub-district; Qos parameter information is meant the PDCP corresponding service qos parameter of measurement, and qos parameter comprises QCI and rate information, can also contain ARP; Temporal information can be absolute time or the relative time of measuring; Positional information comprises residing geographical position, terminal; Mobility status can be the translational speed grade at terminal, for example, and low speed, middling speed, at a high speed; The process at place, terminal can refer to that handoff procedure, RRC rebuild upright process, regular traffic process etc.
Preferably, network element 1 can reshuffle or stop the measurement of PDCP.For example, can make amendment, perhaps stop part or all of measuring amount object procedure, the measurement and report information of target measurement amount, measurement.Network element 1 sends measures reconfiguration information to the terminal, and the terminal is measured or stopped measuring according to measuring reconfiguration information.
Preferably, the network optimization can comprise the optimization of network configuration parameters and the optimization of wireless resource management algorithm, and for example, that can optimize the PDCP packet abandons time parameter DiscardTimer.
Embodiment three
Present embodiment measures beginning with the PDCP layer and reporting measuring result is an example by Event triggered, and the optimization that a kind of QoS is provided is scheme.
Fig. 6 is that as shown in Figure 6, the terminal is in the link attitude in network element 1 according to the Event triggered measurement of the embodiment of the invention three and the schematic flow sheet of Event triggered reporting measuring result, and network element 1 provides professional for the terminal, and this flow process may further comprise the steps:
Step S602, based on optimization or other demands of QoS, network element 1 issues PDCP layer measuring control information to the terminal.Wherein, said measuring control information comprises the target measurement amount of measurement, the object procedure, measurement triggering information, measurement and report information etc. that can also contain measurement wherein or multinomial.The target measurement amount can comprise the measuring amount of concrete PDCP protocol layer; For example; In the indexs such as the throughput of PDCP bag, packet loss, packet delay one or multinomial, this target measurement amount can also contain will measure professional sign, and said sign can be EPS bearer id or RB id or QCI; Perhaps do not carry service identification, then acquiescence is that all business of terminal are all measured.The object procedure of measuring is meant the process status at the terminal of measuring, and for example, is that the terminal is in handoff procedure, RRC rebuilds upright process, regular traffic process etc.Measurement triggering information is meant the trigger condition (can be designated as incident 1) that PDCP measures; For example; Can be that radio signal quality (for example is lower than a certain thresholding; Thresholding for-75dbm), the terminal satisfaction that arrives a certain band of position (for example, being TA1), user do not meet the demands etc. wherein one or multinomial.Measurement and report information is meant triggering terminal reporting measurement result's condition (can be designated as incident 2); For example, can be measure to start the back at interval certain hour (such as, 100s), the storage size of measurement result greater than a certain thresholding (such as; 50%), terminal electric quality is lower than a certain thresholding (promptly; Threshold value, such as, 1%), the service ending measured etc. wherein or multinomial.
Preferably; Network element 1 can for example adopt wireless resource control connection reconfiguration (RRCConnectionReconfiguration) message or a new independent message through arriving the terminal through the control information of chain of command specific messages sending measuring under the RRC means of signaling.
Step S604, the terminal, is then measured the packet of PDCP layer if satisfied the incident 1 of PDCP measurement triggering according to the measuring control information of receiving.Wherein, The moment that the metering system of packet delay can arrive for the up PDCP bag of: terminal records; Receive this PDCP bag and return the moment of confirming ACK with opposite end network element 1; These two constantly the time differences be exactly the time of delay of PDCP bag, just (network element 1 return this bag ACK time-time of advent of terminal PDCP bag), the time of the packet incoming terminal PDCP layer that is meant application layer the time of advent that terminal PDCP wraps; Throughput, the packet loss of PDCP bag can be measured according to the demand of measuring in the terminal.For example, the calculating of throughput: (the transmission bag number in the PDCP layer some cycles at terminal); The calculating of packet loss: (ratios of the bag quantity of not receiving ACK that send at the terminal and whole bag quantity of transmission).
Preferably, the measurement result of each PDCP bag can be write down in the terminal, and it is average also can in a measuring period, to do sums, and just calculates average delay time, average throughput, the average packet loss ratio of all PDCP bags in the measuring period.Can be included in the measuring control information measuring period.
Preferably, the terminal belongs to the measurement of Serving cell wireless quality simultaneously, can also carry out the measurement of the geographical location information at terminal.
Step S606, the incident 2 of reporting measuring result takes place.In implementation process; If the trigger condition that network side issues is user's a satisfaction when not meeting the demands; The professional demand that whether has reached the user can be judged according to the indication of application layer in the terminal, just confirms through application layer whether user satisfaction reaches requirement.
Step S612, if satisfied the incident 2 of reporting measuring result, the terminal will measure the reporting measuring result of PDCP layer to network side.In implementation process, UE can for example, can adopt measurement report (MeasurementReport) message or a new independent message through adopting the said PDCP layer of RRC means of signaling bag reporting measuring result to network element 1.Can also comprise in the information such as process at radio signal quality, qos parameter information, temporal information, positional information, mobility status, place, terminal one or multinomial in the said measurement result.Wherein, radio signal quality can be the pilot signal quality or the channel quality indicator (CQI) of sub-district; Qos parameter information is meant the PDCP corresponding service qos parameter of measurement, and for example, qos parameter comprises QCI and rate information, can also contain ARP; Temporal information can be absolute time or the relative time of measuring; Positional information comprises residing geographical position, terminal; Mobility status can be the translational speed grade at terminal, for example, and low speed, middling speed, at a high speed; The process at place, terminal can refer to that handoff procedure, RRC rebuild upright process, regular traffic process etc.
Need to prove that in implementation process, if do not comprise measurement and report information in the measuring control information that issues of network side, when the terminal also can decide the reporting measurement result in its sole discretion.
Preferably; This flow process can also comprise step S608 and step S610; That is, an indication that has measurement result to report can be sent to network element 1 in the terminal before reporting the PDCP measurement result; After network element 1 sent the message of reporting measuring result request to the terminal, terminal to report PDCP measurement result was to network element 1.In implementation process, if do not comprise measurement and report information in the measuring control information that issues of network side, the terminal also can be decided the indication that when reports the measurement result that existence can report in its sole discretion.
Preferably, network element 1 can reshuffle or stop the measurement of PDCP.For example, network element 1 can be made amendment to object procedure, the measurement and report information of target measurement amount, measurement, perhaps stops part or all of measuring amount.Network element 1 sends measures reconfiguration information to the terminal, and the terminal is measured or stopped measuring according to measuring reconfiguration information.
In the present embodiment, network side can carry out the network optimization according to the PDCP measurement result of terminal to report, improves user's QoS.Preferably, the network optimization can comprise the optimization of network configuration parameters and the optimization of wireless resource management algorithm, and for example, that can optimize the PDCP packet abandons time parameter DiscardTimer.
Need to prove that the business of the measurement in the foregoing description all is meant up business.Network element 1 in the LTE system, is meant eNB; In the UMTS system, be meant RNC.
In sum; For demand that satisfies user QoS and the resource that makes full use of network; The embodiment of the invention provides a kind of scheme of user face data being measured at the PDCP layer, and network side can carry out the optimization of QoS according to the measurement result of terminal to report, has improved the QoS quality of system.Simultaneously, Internet resources have also been made full use of, for the user provides better user experience.
Obviously; It is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize that they can concentrate on the single calculation element with the general calculation device; Perhaps be distributed on the network that a plurality of calculation element forms; Alternatively, they can be realized with the executable program code of calculation element, carried out by calculation element thereby can they be stored in the storage device; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. the optimization method of a service quality QoS is characterized in that, may further comprise the steps:
The network side network element issues PDCP PDCP layer measuring control information to the terminal;
Said network side network element receives the measurement result information that reports after said terminal is measured the packet of PDCP layer according to said PDCP layer measuring control information, and is optimized according to the QoS of said measurement result information to network.
2. method according to claim 1 is characterized in that, said network side network element issues said PDCP layer measuring control information through chain of command first specific messages to said terminal; Said terminal reports said measurement result information through chain of command second specific messages.
3. method according to claim 1 is characterized in that, said network side network element receives before the said measurement result information of said terminal to report, also comprises:
Measurement mechanism is confirmed according to said PDCP layer measuring control information in said terminal; Wherein, said measurement mechanism comprises one of following: periodically report the reporting of said measurement result information, the said measurement result information of Event triggered, said terminal to carry out that the DPCP layer is measured and reporting of said measurement result information is Event triggered;
Said terminal is measured the packet of said PDCP layer, and said measurement result information is reported according to the said measurement mechanism of confirming.
4. method according to claim 3 is characterized in that, said terminal reports said measurement result information and comprises:
The indication that said terminal has said measurement result informational needs to report is sent to said network side network element in said terminal; When the said measurement result information of the said terminal to report of said network side network element request, said terminal is to the said measurement result information of said network side reported by network elements; Perhaps,
From said PDCP layer measuring control information, can't confirm to report under the situation of mode of said measurement result information at said terminal, said terminal is decided in its sole discretion when to the said measurement result information of said network side reported by network elements.
One of 5. method according to claim 1 is characterized in that, below said PDCP layer measuring control information comprises at least: the object procedure of target measurement amount, measurement, measurement and report information, measurement triggering information.
6. method according to claim 5 is characterized in that, said target measurement amount comprises the performance index and/or the professional sign of measurement of PDCP bag, wherein,
One of below the performance index of said PDCP bag comprise at least: throughput, packet loss, packet delay;
One of said measurement business is a uplink service, below its sign comprises at least: the grouping system EPS bearing identification of evolution, radio bearer sign, QoS class identifier.
7. method according to claim 6 is characterized in that, said network side network element receives before the said measurement result information of said terminal to report, and when said terminal was measured the packet of said PDCP layer, the metering system of said packet delay was:
The packet of the said PDCP layer of said terminal records arrives the time t of the PDCP layer at said terminal
1Receive the time t of the affirmation message of returning to said terminal behind this packet with said network side network element
2
T is passed through at said terminal
2Deduct t
1, draw said packet delay.
One of 8. method according to claim 5 is characterized in that, the object procedure of said measurement is the residing process status in said terminal when measuring, below comprising at least: handoff procedure, radio resource control RRC are rebuild upright process, regular traffic process.
9. method according to claim 5; It is characterized in that; Said measurement and report information is the cycle of the said measurement result information of said terminal to report or the incident that triggers the said measurement result information of said terminal to report; One of below wherein, this incident comprises at least: the memory space through the scheduled time, measurement result after measurement starts is lower than predetermined threshold, measures service ending greater than predetermined threshold, said terminal electric quality.
10. method according to claim 5; It is characterized in that; Said measurement triggering information is that the trigger condition that PDCP measures is carried out at said terminal; Wherein, one of below said trigger condition comprises at least: radio signal quality is lower than the satisfaction that predetermined threshold, said terminal be in presumptive area, user and is lower than predetermined requirement.
11. method according to claim 5 is characterized in that, said network side network element issues said PDCP layer measuring control information to said terminal and comprises:
Said network side network element is made amendment to said PDCP layer measuring control information, and amended said PDCP layer measuring control information is handed down to said terminal; Perhaps,
Said network side network element carries the sign that the said terminal of indication stops measuring said target measurement amount in said PDCP layer measuring control information.
12. method according to claim 1; One of it is characterized in that, below said measurement result information comprises at least: the mobility status at PCDP measurement result, radio signal quality, PDCP corresponding service qos parameter information, the temporal information of measurement, said location information of terminals, said terminal, residing process status when said terminal is measured with measurement.
13., it is characterized in that said network side network element is optimized the QoS of network according to said PDCP measurement result and comprises according to each described method in the claim 1 to 12:
Said network side network element is optimized according to the configuration parameter and/or the wireless resource management algorithm of said PDCP measurement result to network, and wherein, the configuration parameter of said network comprises the time that abandons of PDCP packet.
14. a network side network element is characterized in that, comprising:
Issue module, be used for issuing packet data convergence protocol PDCP layer measuring control information to the terminal;
Receiver module is used to receive the measurement result information that reports after said terminal is measured the packet of PDCP according to said PDCP layer measuring control information; And the service quality QoS optimal module, be used for being optimized according to the QoS of said measurement result information to network.
15. network side network element according to claim 14 is characterized in that, in Long Term Evolution LTE system, said network side network element is evolved base station eNB; In UMTS UMTS, said network side network element is a radio network controller (RNC).
16. the optimization system of a service quality QoS is characterized in that, comprises terminal and claim 14 or 15 described network side network elements, wherein,
Said terminal comprises: measurement module is used for according to from the said PDCP layer measuring control information of said network side network element the packet of PDCP being measured; And reporting module, be used for measuring the back to the said measurement result information of said network side reported by network elements at said measurement module.
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| CN201110084214.8A CN102740379B (en) | 2011-04-02 | The optimization method of service quality and system, network side element | |
| PCT/CN2011/083321 WO2012136067A1 (en) | 2011-04-02 | 2011-12-01 | Quality of service optimization method and system, and network-side network element |
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| CN201110084214.8A CN102740379B (en) | 2011-04-02 | The optimization method of service quality and system, network side element |
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