CN101969662B - Method and system for measuring and reporting random access channel optimization by terminal - Google Patents
Method and system for measuring and reporting random access channel optimization by terminal Download PDFInfo
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Abstract
The invention discloses a method for measuring and reporting random access channel optimization by a terminal. The method comprises the following step that user equipment (UE) serving as the terminal reports a measurement report to a network element on the network side after the random access channel (RACH) is measured, wherein the measurement report comprises related information generated during successful accessing of RACH and/or related information generated during unsuccessful accessing of the RACH. The invention also discloses a system for measuring and reporting the random access channel optimization by the terminal. In the system, a measurement report unit is used for measuring the RACH; and the UE reports the measurement report to the network element on the network side, wherein the measurement report comprises related information generated during successful accessing of RACH and/or related information generated during unsuccessful accessing of the RACH. By using the method and the system of the invention, the measurement report of the UE ensures that the network side acquires the complete related information of the RACH process.
Description
Technical field
The present invention relates to the communications field, particularly relate to the terminal (UE) that a kind of Stochastic accessing (RACH) optimizes and measure the method and system reported.
Background technology
Long Term Evolution (LTE, Long Term Evolution) network is by the Universal Terrestrial Radio Access Network network (E-UTRAN of evolution, Evolved Universal Terrestrial Radio Access Network) and the packet-based core networks (EPC of evolution, Evolved Packet Core) composition, network presents flattening, wherein E-UTRAN is made up of the base station (eNB, Evolved NodeB) of multiple evolution be connected with EPC.
In LTE system, be in the UE of free time (IDLE) state or need with network side mutual for the UE of desynchronizing state, first need to initiate RACH process, RACH process can be divided into based on the RACH of competition and two kinds of forms based on non-competing RACH, as depicted in figs. 1 and 2.UE, when preparing to initiate RACH, first will send a RACH targeting sequencing (Preamble).Be 64 for the prefix sequence code of RACH in each community, according to above-mentioned based on competition and non-competing access way, Preamble code has been divided into two kinds.
Wherein, because the RACH form based on competition exists conflict, therefore comprise the step of Conflict solving, and there is not conflict based on non-competing RACH form, therefore do not comprise the step of Conflict solving.Specifically, be illustrated in figure 1 the RACH form based on competition, this RACH process comprises the following steps:
Step 101, UE initiate RACH prefix request message to eNB.
Step 102, eNB return RACH prefix response message to UE.
Step 103, UE initiate scheduling transmission requests message to eNB.
Step 104, eNB return Conflict solving message to UE.
Be illustrated in figure 2 based on non-competing RACH form, this RACH process comprises the following steps:
Step 201, UE initiate RACH prefix assignment request message to eNB.
Step 202, UE initiate RACH prefix request message to eNB.
Step 203, eNB return RACH prefix response message to UE.
In the cell, because a certain moment may have several UE to initiate above-mentioned RACH process simultaneously, therefore, just may occur for using the RACH process based on competition of same group of Preamble code conflicting, the RACH process causing UE to initiate or UE and the follow-up mutual of network side occur unsuccessfully.The part UE in community finally may be caused to have occurred, and the time delay of call setup/switching is larger or access success rate reduction, thus has had influence on Consumer's Experience.In addition, because Physical Random Access Channel (PRACH, PhysicalRandom Access Channel) channel needs the part interface-free resources fixedly taking community, therefore, if PRACH configures the improper waste that also can cause cell radio resource.Need in a period of time after community is set up, to adopt the methods such as on-the-spot manual testing to collect the performance parameter of community, then manual amendment configures accordingly thus improves the performance of system and improve Consumer's Experience for this reason.Due to the complexity of wireless environment, the system parameters of final artificial optimization does not have time variation, and the artificial network optimization efficiency participated in is not high, and the most important thing is that this can cause a large amount of human costs, and this is that operator is reluctant to see.
In order to reduce manual maintenance workload and the optimized network ability of network, current at next generation mobile networks (NGMN, Next Generation Mobile Network) tissue propose demand in, LTE needs to support self-organizing network (SON, Self Organized Network) function.Wherein, SON function comprises the self-optimization function of RACH channel.The self-optimization function of RACH channel can carry out the parameter configuration of Automatic Optimal community by the self-configuration function of network and self-optimization function, comprise the configuration of RACH channel.But, the prerequisite of RACH channel optimization is the performance index needing current network, just can be followed successively by input reaches network optimization object by certain algorithm, for this reason, through discussing the input proposing RACH optimizational function in the Current protocol of LTE, that is: the number of times of the RACH prefix received, its definition is average based on specific PRACH configuration in community of the quantity of the prefix of the RACH received in a period of time.
In addition, on the one hand, in order to assess the performance of RACH process, such as accessing probability, access delay probability etc., also needing to report according to the measurement of UE to assess it.The UE measurement of current proposition mainly contains the number of retries of RACH, the access delay of UE, the power limited instruction etc. of UE.Wherein, the definition of the number of retries of RACH is that UE sends Preamble to number of retries during final Successful authorization access from first time; The definition of the access delay of UE is that UE sends the time of Preamble to final Successful authorization access use from first time.And, whether be that UE can arrange a flag bit for the retry clashed in reporting because there occurs conflict to distinguish certain retry.
On the other hand, because the optimization of RACH process does not require too strong real-time, so UE first can keep in measurement result, then after satisfied measurement report condition, measurement result is above reported together, change if period UE there occurs community, then UE need to preserve survey the cell ID of community corresponding to RACH process.Measurement report condition refers to: often successfully access for N time, or T at set intervals, receive eNB report request after, or successfully to report immediately after access.
But the scheme that the above existing UE of realization measurement reports accurately can not embody the problems such as the access that occurs in RACH process and delay, because only reported: this category information of measurement result successfully accessing RACH process; And do not add up for not accessing successful RACH process and report.And if UE stores the measurement result of repeatedly RACH process, if period, community there occurs the adjustment of RACH parameter, then the measurement result before is just nonsensical.Therefore, the measurement of UE reports the relevant information how making network side can know more fully RACH process, comprise the relevant informations such as conflict and delay, so that network side optimizes RACH process based on the relevant information of comprehensive RACH process, become problem in the urgent need to address at present.
Summary of the invention
In view of this, main purpose of the present invention is the method and system that the UE measurement providing a kind of RACH to optimize reports, the measurement of UE reports the relevant information that network side can be made to learn comprehensive RACH process, so that network side optimizes RACH process based on the relevant information of comprehensive RACH process.
For achieving the above object, technical scheme of the present invention is achieved in that
A method for the terminal measurement report that Stochastic accessing is optimized, the method comprises: after Stochastic accessing RACH measures, terminal UE reporting measurement reports is to the network element of network side;
Wherein, described measurement report comprises: successfully access the relevant information produced in the relevant information produced in RACH process and/or unsuccessful access RACH process.
Wherein, the method comprises further: the relevant information produced in the relevant information produced in the successful access RACH process that the network element of described network side reports according to described UE and/or unsuccessful access RACH process, the performance of assessment RACH process.
Wherein, the described relevant information produced in RACH process that successfully accesses comprises: current measurement and the temporal information corresponding with current measurement, optional RACH conflict number or optional RACH type.
Wherein, the relevant information produced in described unsuccessful access RACH process comprises: RACH unsuccessfully indicates, the optional Serving cell mark/temporal information corresponding with current measurement, the optional RACH frequency of failure or optional RACH type.
Wherein, when the network element of described network side receives described current measurement and described temporal information, when described temporal information is in measurement period, according to the statistics to described current measurement and described temporal information, the performance of assessment current RACH procedure;
When the network element of described network side receives described RACH type, be based on the RACH process of competition or based on non-competing RACH process according to RACH type, assess the performance of current RACH procedure respectively;
The network element of described network side receives described RACH when unsuccessfully indicating, according to the statistics unsuccessfully indicated described RACH, and the success rate in assessment current RACH procedure.
Wherein, the method comprises further: delete the measurement result that described UE preserves, be specially:
When before UE reports, the partial configuration of current service cell occurs to change, the measurement result to current service cell that described UE preserves before deleting and changing;
When before UE reports, the time span of experience is more than the first assign thresholds Tvalid, the measurement result that the described UE time before described Tvalid of deleting preserves;
When the measurement number occurred before UE reports is more than the second assign thresholds Nvalid, described UE deletes the measurement result of preserving before nearest described Nvalid measurement;
Before UE reports, the Measuring Time of generation is when the 3rd assign thresholds Tfirst, the measurement result that the described UE time before described Tfirst of deleting preserves.
Wherein, described UE meets RACH and measures report condition and after successfully reporting described measurement report, the measurement result of preserving before deletion.
Wherein, described RACH measures report condition by UE default setting or arranged by network side.
Wherein, the signaling of employing is reported to comprise described in: media access control layer control signal or special wireless heterogeneous networks control signal.
A system for the terminal measurement report that Stochastic accessing is optimized, this system comprises: measure and report unit, measure, and UE reporting measurement reports is to the network element of network side for RACH;
Wherein, described measurement report comprises: successfully access the relevant information produced in the relevant information produced in RACH process and/or unsuccessful access RACH process.
Wherein, this system also comprises assessment unit, for the relevant information produced in the relevant information that produces in the successful access RACH process that the network element of network side reports according to UE and/or unsuccessful access RACH process, and the performance of assessment RACH process.
Wherein, described assessment unit, when the network element being further used for network side receives described current measurement and described temporal information, when described temporal information is in measurement period, according to the statistics to described current measurement and described temporal information, the performance of assessment current RACH procedure;
When the network element of network side receives described RACH type, be based on the RACH process of competition or based on non-competing RACH process according to RACH type, assess the performance of current RACH procedure respectively;
The network element of network side receives described RACH when unsuccessfully indicating, according to the statistics unsuccessfully indicated described RACH, and the success rate in assessment current RACH procedure.
Wherein, this system also comprises: delete cells, when before reporting for UE, the partial configuration of current service cell occurs to change, and the measurement result to current service cell that described UE preserves before deleting and changing;
When before UE reports, the time span of experience is more than the first assign thresholds Tvalid, the measurement result that the described UE time before described Tvalid of deleting preserves;
When the measurement number occurred before UE reports is more than the second assign thresholds Nvalid, described UE deletes the measurement result of preserving before nearest described Nvalid measurement;
Before UE reports, the Measuring Time of generation is when the 3rd assign thresholds Tfirst, the measurement result that the described UE time before described Tfirst of deleting preserves.
Wherein, described delete cells, is further used for described UE and meets RACH and measure report condition and after successfully reporting described measurement report, the measurement result of preserving before deletion.
In the present invention, after RACH measures, UE reporting measurement reports is to the network element of network side.Wherein, measurement report comprises: the relevant information produced in Successful authorization access RACH process and/or unsuccessful mandate access the relevant information produced in RACH process.
The measurement report reported due to UE in the present invention includes the relevant information of comprehensive RACH process, that is: the relevant information produced in Successful authorization access RACH process and/or unsuccessful mandate access the relevant information produced in RACH process, therefore, adopt the present invention, network side can be helped to collect the relevant information of more accurately comprehensively RACH process, thus RACH optimizational function entity can be helped to make optimization output more accurately.
Accompanying drawing explanation
Fig. 1 is the realization flow schematic diagram of the RACH process based on competition;
Fig. 2 is the realization flow schematic diagram based on non-competing RACH process;
Fig. 3 is the realization flow schematic diagram that UE RACH measurement reports process.
Embodiment
Basic thought of the present invention is: after RACH measures, UE reporting measurement reports is to the network element of network side.Wherein, measurement report comprises: the relevant information produced in Successful authorization access RACH process and/or unsuccessful mandate access the relevant information produced in RACH process.
Be described in further detail below in conjunction with the enforcement of accompanying drawing to technical scheme.
The method that the UE measurement that RACH optimizes reports, the method comprises: after RACH measures, UE reporting measurement reports is to the network element of network side.Wherein, measurement report comprises: the relevant information produced in Successful authorization access RACH process and/or unsuccessful mandate access the relevant information produced in RACH process.Wherein, the network element of network side comprises eNB.
Here, after UE reporting measurement reports, the method comprises further: the network element of network side accesses the relevant information produced in the relevant information and/or unsuccessful mandate access RACH process produced in RACH process, the performance of assessment RACH process according to the Successful authorization that UE reports.
Wherein, for the relevant information produced in Successful authorization access RACH process, the relevant information produced in Successful authorization access RACH process comprises: current measurement and the temporal information corresponding with current measurement, optional RACH conflict number or optional RACH type.That is, current measurement and the temporal information corresponding with current measurement are the information that must report, and other information in addition can be selected to report.
Comprise for the unsuccessful relevant information produced in access RACH process of authorizing: RACH unsuccessfully indicates, the optional Serving cell mark/temporal information corresponding with current measurement, the optional RACH frequency of failure or optional RACH type.That is, it is the information that must report that RACH unsuccessfully indicates, and other information in addition can be selected to report.
Here it is pointed out that the performance index of the network element assessment RACH process of network side can adopt multiple different mode, set forth respectively below.
The first situation: when the network element of network side receives current measurement and the temporal information corresponding with current measurement, when temporal information is in measurement period, according to the statistics to current measurement and the temporal information corresponding with current measurement, performance in assessment current RACH procedure, such as access probability and access delay probability, configure the need of optimization to adjudicate current RACH.Now, the performance index assessing RACH process can comprise: access probability and access delay probability or other performance index.If performance index do not meet the expectation, then adjustment RACH is needed to be configured to optimize RACH process.RACH configuration comprises: PRACH configuration, RACH access lead configuration information, RACH power control parameters etc.
The second situation: when the network element of network side have received RACH type, the network element of network side can, according to the type of RACH, namely carry out adding up above-mentioned RACH performance index based on the RACH process of competing or based on non-competing RACH process respectively.
The third situation: the network element of network side receives RACH when unsuccessfully indicating, and according to the statistics unsuccessfully indicated RACH, the success rate in assessment current RACH procedure, configures the need of optimization to adjudicate current RACH.Here, current RACH procedure comprises Successful authorization access and unsuccessful one section of RACH process of authorizing access, and now, the performance index of assessment RACH process comprise: the success rate in current RACH procedure.
With regard to the success rate in current RACH procedure, network side is after receiving the reporting of a large amount of UE, can measure according to failed and successful RACH, success rate in assessment current RACH procedure, namely the RACH assessing success initiation in current service cell accounts for the probability of the RACH altogether initiated, and its computing formula can adopt: SP=Nsuccess/Ntotal.Wherein, SP represents the success rate in current RACH procedure; Nsuccess refers to that the RACH successfully initiated crosses number of passes; Ntotal refers to the number of times of the RACH altogether initiated.
The performance index of this RACH process of assessment SP, its effect is: if SP lower than an assign thresholds such as 95% or other, then think that current RACH performance does not satisfy the demands, need amendment RACH configuration parameter, such as revise the configuration, the leading configuration information of RACH, RACH power control parameters etc. of PR ACH.Wherein, this specified threshold can be configured by operation, management and maintenance (OAM, Operation AdministrationMaintenance).
Here, the method comprises further: the process of deleting the measurement result that UE preserves.With regard to measurement result, save a large amount of measurement results in UE side, a part of content that what the measurement report reported comprised may be in measurement result.The process of deleting the measurement result that UE preserves comprises following several situation:
When before UE reports, the partial configuration of current service cell occurs to change, the measurement result to current service cell that UE preserves before deleting and changing.The partial configuration of described current service cell, can be RACH configuration, also can be other cell configuration that part can affect random access procedure, the down transmitting power configuration of such as community, the antenna tilt configuration of community, or the switching threshold configuration etc. of community.
When before UE reports, the time span of experience is more than the first assign thresholds Tvalid, the measurement within UE is only kept between nearest Tvalid, the measurement result that the time before Tvalid of deleting preserves.
When the measurement number occurred before UE reports is more than the second assign thresholds Nvalid, UE only preserves the measurement result of nearest Nvalid time, deletes the measurement result of preserving before nearest Nvalid time is measured.
The time of the measurement occurred before UE reports is not after the 3rd threshold value Tfirst, UE deletes the measurement result of preserving before time point Tfirst.
Further, report condition after successful reporting measurement reports is measured when UE meets RACH, these measurement results of preserving before needing to delete.
Here, RACH measures report condition by UE default setting or arranged by network side.
Here, the signaling of employing is reported to comprise: medium education (MAC) layer control signal or special wireless heterogeneous networks (RRC) control signal.
In sum, the present invention mainly comprises: in measurement report, and UE is except measuring RACH relevant information when reporting UE Successful authorization to access; For the RACH process of access failure, also need the RACH relevant information reporting the final access failure of UE.In addition, in order to the validity allowing network side know measurement, need the temporal information that UE reporting measurement occurs, or UE determine whether to report according to the configuration change of current service cell before measurement result.As shown in the following Table 1, table 1 is the measuring amount signal table in UERACH measurement to the every terms of information comprised in measurement report.
| The information that measurement report comprises | Implication | Remarks |
| RACH conflict number | Indicate the number of times clashed in this RACH process | Integer |
| Serving cell identifies | The mark of UE Serving cell, place in this RACH measures | Integer |
| Temporal information | UE does the time point information that this RACH measures | Absolute time or relative time |
| RACH unsuccessfully indicates | Whether the RACH process indicating this to measure is successful | Boolean type |
| The RACH frequency of failure | Indicate the number of times of the RACH process of the failure occurred before measurement reports | Integer |
| RACH type | What instruction UE initiated is based on the RACH process of competition or based on non-competing RACH process | Integer or Boolean type |
Table 1
Embodiment of the method:
As shown in Figure 3, this method embodiment comprises the following steps:
Step 301, UE carry out RACH measurement.
Step 302, meet RACH measure report condition time, UE reporting measurement reports is to eNB.
Step 303, eNB add up measurement report, and assess RACH performance, to adjudicate the need of optimization RACH configuration.
For above embodiment of the method, the measurement report that different RACH process reports is different, final assessment and judgement also different, below divide the different RACH scenes of three examples to set forth.
Example one: successfully access RACH process, namely final UE is successfully authorized to the scene being linked into network.
First, UE measures the RACH process that success accesses, and report if UE needs the measurement report storing this to wait until satisfied report condition of measuring, wherein, measurement report comprises: this measures corresponding temporal information, as shown in Table 1 above.Further, measurement is given the correct time measurement result and the temporal information corresponding with current measurement reported network side together.
Then, after network side receives the measurement report of UE, measurement report being included in the performance statistics of RACH, when the temporal information in measurement report is not within measurement period, can be got rid of when adding up; When the temporal information in measurement report is within measurement period, network side, by the performance in the current RACH access of the statistical estimation of measurement report, such as accesses probability and access delay probability etc.
Here, if current RACH performance does not meet the expectation, then need, according to statistics adjustment RACH configuration, to comprise the configuration information such as PRACH configuration, RACH access lead configuration information, RACH power control parameters.Such as, if the access delay probability of RACH is larger, then may need to revise the power control parameters in RACH or PRACH configuration.
Optionally, in order to distinguish UE retry in have how many times retry to cause because of there occurs conflict, UE can be comprised because conflict the number of retries caused, i.e. RACH conflict number shown in above table 1 in the metrical information that UE reports.Network side can lose probability according to the detection of RACH conflict number statistics RACH, thus judges that the configuration of current RACH is the need of optimization.
Further, the RACH used to distinguish UE belongs to based on competition or based on non-competing, the RACH type of this RACH process can also be comprised in the measurement report that UE reports, as shown in Table 1 above, by RACH type, network side can know that current RACH belongs to based on the RACH process of competition or based on non-competing RACH process, when the performance of subsequent statistical assessment RACH access, can add up respectively.
Example two: unsuccessful access RACH process, namely final UE is not linked into the scene of network by Successful authorization.
First, UE initiates RACH process, but have failed, then UE can record corresponding RACH failure information, and is encapsulated in measurement report when satisfied measurement report condition and reports network side.RACH failure information comprises RACH and unsuccessfully indicates, as shown in Table 1 above.
Then, network side, after receiving the reporting of a large amount of UE, can be measured according to failed and successful RACH, the success rate SP of assessment RACH, namely assesses the probability that success is initiated in current service cell RACH accounts for the RACH altogether initiated.Such as: SP=Nsuccess/Ntotal, wherein Nsuccess refers to that the RACH successfully initiated crosses number of passes; Ntotal refers to the number of times of the RACH altogether initiated.
Here, if SP is lower than an assign thresholds such as 95%, then think that current RACH performance does not satisfy the demands, need amendment RACH configuration parameter, RACH configuration parameter comprises PRACH configuration, the leading configuration information of RACH, RACH power control parameters etc.Wherein, assign thresholds can be OAM configuration.
Optionally, in order to network side distinguishes community and the available time of each measurement, failure information also can comprise: the Serving cell of generation RACH failure identifies or this measures corresponding temporal information.
It is pointed out that in example one and example two to relate to and measure corresponding temporal information, can be the form of this absolute time of date Hour Minute Second; Also can be the form of this relative time of time span relative to the experience that above calls time.
Further, the temporal information of the measurement correspondence related in example one and example two can be in this RACH process UE first time send the RACH leading time, also can be that UE thinks the time that this RACH process terminates.
Further, in measurement report in example one and example two, the RACH used to distinguish UE belongs to based on competition or based on non-competing, the RACH type of this RACH process can also be comprised in the measurement report that UE reports, namely belong to based on competition or based on non-competing RACH process, network side, when the performance of subsequent statistical assessment RACH access, can be added up respectively.As shown in Table 1 above.
Example three: UE manages the scene of the measuring amount of preserving.Measuring amount comprises the information shown in above table 1, is included in measurement report.
UE is to RACH process, the RACH process comprising success and failure is measured, report if UE needs the measurement report storing this to wait until satisfied report condition of measuring, if UE is before reporting RACH measurement, Serving cell there occurs partial configuration and changes, and this part configuration comprises RACH configuration, or other can have influence on the configuration change of random access procedure, the down transmitting power configuration of such as community, the antenna tilt configuration of community, or the switching threshold configuration etc. of community.UE knows RACH configuration change as by system information updating message UE after recognizing this RACH configuration change, the measurement result of the RACH to current service cell stored before UE can delete.
Further, if the time span of UE experience before measurement reports exceedes assign thresholds Tvalid, then UE can remove the measurement result of the time preservation before time Tvalid.Tvalid can be the default configuration of UE, also can be configured by network side.
Further, if the measurement number that UE occurred before measurement reports exceedes assign thresholds Nvalid, then UE can remove the measurement result of the preservation before nearest Nvalid time is measured.Nvalid can be the default configuration of UE, also can be configured by network side.
Further, if certain of UE storage measures corresponding temporal information not after appointment earliest time Tfirst, then UE can remove this measurement result.Described earliest time Tfirst can be default configuration, also can be configured by common signaling such as broadcast or dedicated signaling by network side.
Further, UE meets measuring condition and after successful reporting measurement reports, the measurement report preserved before needing to remove.
Further, the UE related in example one, example two and example three reports mechanism, can pass through MAC layer control signal, also can by special RRC control signal.
Further, the RACH related in example one, example two and example three measures the default configuration condition that report condition can be UE, also can be the report condition configured by network side.
The system that the UE measurement that RACH optimizes reports, this system comprises: measure and report unit, measure, and UE reporting measurement reports is to the network element of network side for RACH.Wherein, measurement report comprises: the relevant information produced in Successful authorization access RACH process and/or unsuccessful mandate access the relevant information produced in RACH process.
Here, this system also comprises assessment unit, for the relevant information that produces in the Successful authorization access RACH process that the network element of network side reports according to UE and/or unsuccessfully authorize the relevant information produced in access RACH process, the performance of assessment RACH process.Below the various specific implementations of assessment unit are set forth respectively.
Here, when the network element that assessment unit is further used for network side receives current measurement and the temporal information corresponding with current measurement, when the temporal information corresponding with current measurement is in measurement period, according to the statistics to current measurement and the temporal information corresponding with current measurement, performance in assessment current RACH procedure, such as access probability and access delay probability, configure the need of optimization to adjudicate current RACH.
When the network element that assessment unit is further used for network side receives RACH type, be based on the RACH process of competition or based on non-competing RACH process according to RACH type, assess the performance of current RACH procedure respectively.
The network element that assessment unit is further used for network side receives RACH when unsuccessfully indicating, according to the statistics unsuccessfully indicated RACH, the Successful authorization access of assessment current RACH procedure and unsuccessful success rate of authorizing in access, configure the need of optimization to adjudicate current RACH.
Here, this system also comprises: the measurement report that delete cells is preserved for deleting UE.Below the specific implementation of delete cells is set forth respectively.
When delete cells is used for the partial configuration generation change of current service cell before UE reports, the measurement result to current service cell that UE preserves before deleting and changing.
When before delete cells reports for UE, the time span of experience is more than the first assign thresholds Tvalid, the measurement result that the UE time before Tvalid of deleting preserves.
When the measurement number that delete cells occurs before reporting for UE is more than the second assign thresholds Nvalid, UE deletes the measurement result of preserving before nearest Nvalid time is measured.
The time of the measurement that delete cells occurs before reporting for UE is not after the 3rd threshold value Tfirst, UE deletes the measurement result of preserving before time point Tfirst.
Here, delete cells is further used for UE and meets RACH and measure report condition after successful reporting measurement reports, the measurement result of preserving before deletion.
The number of times of the RACH prefix more than related to can be expressed as Number of received RACHpreambles; Access probability can be expressed as Access Probability, is abbreviated as AP; Access delay probability can be expressed as Access Delay Probability, is abbreviated as ADP; Detect loss probability and can be expressed as Detect Missing Probability, be abbreviated as DMP; The number of retries of RACH can be expressed as PREAMBLE TRANS COUNTER; Serving cell mark can be expressed as Global Cell ID.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (14)
1. a method for the terminal measurement report of Stochastic accessing optimization, it is characterized in that, the method comprises: after Stochastic accessing RACH measures, terminal UE reporting measurement reports is to the network element of network side;
Wherein, described measurement report comprises: successfully access the relevant information produced in RACH process and/or must comprise unsuccessful that RACH unsuccessfully indicates and access the relevant information produced in RACH process;
The network element of described network side receives described RACH when unsuccessfully indicating, according to the statistics unsuccessfully indicated described RACH, and the success rate in assessment current RACH procedure.
2. method according to claim 1, it is characterized in that, the method comprises further: the relevant information produced in the relevant information produced in the successful access RACH process that the network element of described network side reports according to described UE and/or unsuccessful access RACH process, the performance of assessment RACH process.
3. method according to claim 2, it is characterized in that, the described relevant information produced in RACH process that successfully accesses comprises: current measurement and the temporal information corresponding with current measurement, optional RACH conflict number or optional RACH type.
4. method according to claim 2, it is characterized in that, the relevant information produced in described unsuccessful access RACH process also comprises: the optional Serving cell mark/temporal information corresponding with current measurement, the optional RACH frequency of failure or optional RACH type.
5. the method according to claim 3 or 4, it is characterized in that, when the network element of described network side receives described current measurement and described temporal information, when described temporal information is in measurement period, according to the statistics to described current measurement and described temporal information, the performance of assessment current RACH procedure;
When the network element of described network side receives described RACH type, be based on the RACH process of competition or based on non-competing RACH process according to RACH type, assess the performance of current RACH procedure respectively.
6. method according to claim 1, is characterized in that, the method comprises further: delete the measurement result that described UE preserves, be specially:
When before UE reports, the partial configuration of current service cell occurs to change, the measurement result to current service cell that described UE preserves before deleting and changing;
When before UE reports, the time span of experience is more than the first assign thresholds Tvalid, the measurement result that the described UE time before described Tvalid of deleting preserves;
When the measurement number occurred before UE reports is more than the second assign thresholds Nvalid, described UE deletes the measurement result of preserving before nearest described Nvalid measurement;
Before UE reports, the Measuring Time of generation is when the 3rd assign thresholds Tfirst, the measurement result that the described UE time before described Tfirst of deleting preserves.
7. method according to claim 6, is characterized in that, described UE meets RACH and measures report condition and after successfully reporting described measurement report, the measurement result of preserving before deletion.
8. method according to claim 7, is characterized in that, described RACH measurement report condition is by UE default setting or arranged by network side.
9. the method according to claim 1 or 2 or 3 or 4 or 6 or 7 or 8, is characterized in that, described in report the signaling of employing to comprise: media access control layer control signal or special wireless heterogeneous networks control signal.
10. a system for the terminal measurement report of Stochastic accessing optimization, it is characterized in that, this system comprises: measure and report unit, measure, and UE reporting measurement reports is to the network element of network side for RACH;
Wherein, described measurement report comprises: successfully access the relevant information produced in RACH process and/or must comprise unsuccessful that RACH unsuccessfully indicates and access the relevant information produced in RACH process;
The network element of network side receives described RACH when unsuccessfully indicating, according to the statistics unsuccessfully indicated described RACH, and the success rate in assessment current RACH procedure.
11. systems according to claim 10, it is characterized in that, this system also comprises assessment unit, for the relevant information produced in the relevant information that produces in the successful access RACH process that the network element of network side reports according to UE and/or unsuccessful access RACH process, the performance of assessment RACH process.
12. systems according to claim 11, it is characterized in that, described assessment unit, when the network element being further used for network side receives current measurement and temporal information, when described temporal information is in measurement period, according to the statistics to described current measurement and described temporal information, the performance of assessment current RACH procedure;
When the network element of network side receives RACH type, be based on the RACH process of competition or based on non-competing RACH process according to described RACH type, assess the performance of current RACH procedure respectively;
The network element of network side receives described RACH when unsuccessfully indicating, according to the statistics unsuccessfully indicated described RACH, and the success rate in assessment current RACH procedure.
13. according to claim 10 to the system according to any one of 12, it is characterized in that, this system also comprises: delete cells, when before reporting for UE, the partial configuration of current service cell occurs to change, and the measurement result to current service cell that described UE preserves before deleting and changing;
When before UE reports, the time span of experience is more than the first assign thresholds Tvalid, the measurement result that the described UE time before described Tvalid of deleting preserves;
When the measurement number occurred before UE reports is more than the second assign thresholds Nvalid, described UE deletes the measurement result of preserving before nearest described Nvalid measurement;
Before UE reports, the Measuring Time of generation is when the 3rd assign thresholds Tfirst, the measurement result that the described UE time before described Tfirst of deleting preserves.
14. systems according to claim 13, is characterized in that, described delete cells, are further used for described UE and meet RACH and measure report condition and after successfully reporting described measurement report, the measurement result of preserving before deletion.
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| WO2017101629A1 (en) * | 2015-12-18 | 2017-06-22 | 华为技术有限公司 | Update method for random access parameter, and related device |
| CN109756913B (en) * | 2017-11-01 | 2021-08-31 | 中兴通讯股份有限公司 | Multi-base station connection management method, user terminal and computer readable storage medium |
| CN110351763A (en) * | 2018-04-04 | 2019-10-18 | 华为技术有限公司 | The method and apparatus of Radio Link monitoring |
| CN112544055B (en) * | 2018-08-09 | 2023-11-07 | 苹果公司 | Performance measurement for 5GC network functions |
| CN111148138B (en) * | 2018-11-02 | 2022-09-13 | 维沃移动通信有限公司 | Measurement recording, reporting, configuring and acquiring methods, terminal and network equipment |
| CN111436159B (en) * | 2019-02-14 | 2022-08-02 | 维沃移动通信有限公司 | Random access processing method, device, terminal, network equipment and storage medium |
| CN111836317B (en) * | 2019-08-14 | 2022-10-18 | 维沃移动通信有限公司 | Reporting method of state information, terminal and network equipment |
| JP7465994B2 (en) * | 2020-04-09 | 2024-04-11 | ノキア テクノロジーズ オサケユイチア | Extended reporting for random access channels |
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