CN102077676B

CN102077676B - Method and apparatus for optimizing the terminal random access

Info

Publication number: CN102077676B
Application number: CN200980123749.2A
Authority: CN
Inventors: 约翰松·约翰; 张宏卓
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2009-04-28
Filing date: 2009-04-28
Publication date: 2013-10-02
Anticipated expiration: 2029-04-28
Also published as: CN102077676A; WO2010124453A1

Abstract

The invention provides a method for optimizing the terminal random access including the steps of: making statistics by a terminal of a random access measuring item, and reporting the statistics of the random access measuring item to the evolving base station (eNB); receiving by the eNB the access random measuring item reported by the terminal; and modifying the configuration parameters of random access according to the random access measuring item. The embodiments of the present invention are mainly applied to the terminal random access process, decrease the collision rate of the terminal random access, and increase the success rate of the terminal random access and the performance of the random access channel.

Description

Optimize method and device that terminal inserts at random

Technical field

The present invention relates to the communications field, relate in particular to and optimize method and the device that terminal inserts at random.

Background technology

Random access procedure among the LTE (Long Term Evolut ion, Long Term Evolution) is divided into competitive mode and non-competing pattern.The Preamble (lead code) that inserts the non-special use of use at random of competitive mode, the Preamble of these non-special uses can notify UE (User Equipment, subscriber equipment) in Cell Broadcast CB, when UE initiates to insert, Preamble of selection at random; But not inserting at random of competitive mode uses special-purpose Preamble, eNB (evolved NodeB, evolution base station) to use dedicated signaling with these special-purpose Preamble notice UE.

RA (Random Access with competitive mode, access at random) process is compared, Preamble can not conflict in the RA process of non-competing pattern, and eNB can identify UE according to Preamble, also just do not need the identification that conflicts of follow-up information, thereby simplified the RA flow process, saved turn-on time; On the other hand, existing agreement regulation uses the UE of special-purpose Preamble not use Backoff (rollback) mechanism, that is to say, in the RA process of non-competing pattern, if UE does not find the special-purpose Preamble that oneself uses in the access request-reply information that eNB returns, then can use this special-purpose Preamble to initiate RA again immediately, so also can reduce the RA time delay.So under the busy situation of network, eNB can the special-purpose Preamble of preferential answering, thereby reduces the performance that the RA time delay improves system.But available Preamble is limited in the residential quarter, and is busy when network, or owing to other reason, the situation that special-purpose Preamble temporarily uses up may take place, and when UE initiates to insert at random, can only adopt the Preamble of non-special use.When UE uses the Preamble of non-special use to initiate to insert at random, may exist a plurality of UE in the situation of same subframe transmission Preamble, at this moment, if the Preamble that has a plurality of UE to send is identical, UE just may take place count conflict, the success rate that causes UE to insert is lower.

Therefore, in order to reduce at random the collision probability that inserts, improve the success rate that inserts at random, thereby further improve the performance of system, proposed to insert at random optimize problem.Measure the load state that item is weighed Random Access Channel by one of definition in eNB in the prior art, and according to the load state of described Random Access Channel, the corresponding configuration parameter of Random Access Channel is optimized.This measurement item is: the number of the Preamble of access at random (lead code) that Random Access Channel receives.The described method that UE is inserted optimization at random is specially: in certain time interval, the number of the Preamble of access at random (lead code) that eNB statistics Random Access Channel receives, and according to the number of the Preamble of described statistics, realize inserting at random the configuration of relevant parameter.

The method that above-mentioned optimization UE inserts at random, only measure the Preamble number that Random Access Channel is received by eNB, estimate the load of Random Access Channel, this measurement item can't embody the actual conditions that the UE side inserts at random, thereby cause the load of Random Access Channel to estimate inaccurate, it is inaccurate to cause optimizing the configuration that inserts relevant parameter at random, thereby influence inserts optimization effect at random.

Summary of the invention

Embodiments of the invention provide a kind of method that terminal inserts at random of optimizing, and comprising: item is measured in the access at random that receiving terminal reports; Measure a configuration parameter that change inserts at random according to above-mentioned the access at random.

Embodiments of the invention also provide a kind of method that terminal inserts of optimizing, and comprising: the terminal statistics inserts at random measures item; The above-mentioned measurement of the access at random item of adding up is reported evolution base station eNB, optimize an above-mentioned terminal with indication eNB according to the above-mentioned measurement of access at random item and insert at random.

Embodiments of the invention also provide a kind of network side apparatus that terminal inserts of optimizing, and comprising: receiving element is used for the measurement of the access at random item that receiving terminal reports; The change unit is used for measuring a configuration parameter that change inserts at random according to above-mentioned the access at random.

Embodiments of the invention also provide a kind of terminal, comprising: statistic unit is used for the terminal statistics and inserts the measurement item at random; Report the unit, report evolution base station eNB for the above-mentioned measurement of the access at random item that will add up, optimize a terminal with indication eNB according to the above-mentioned measurement of access at random item and insert at random.

The technical scheme that the embodiment of the invention provides, the access at random that self the arranges measurement item that to add up by terminal reports eNB, above-mentioned eNB measures item by above-mentioned the access at random that analysis receives, estimate the loading condition of Random Access Channel, and change the configuration parameter that terminal inserts at random according to the loading condition of above-mentioned Random Access Channel.Owing to the above-mentioned measurement item that inserts at random is that item is measured in the access at random that terminal is obtained, make clearer that the loading condition of the Random Access Channel of the residential quarter of eNB understands, make the more accurate of the terminal Random Access Channel of eNB load estimation, thereby make eNB according to analyzing the measurement of the access at random item that the above-mentioned terminal that receives sends, the change of the configuration parameter that terminal is inserted at random is more reasonable and more accurate, make terminal when inserting at random, the resource abundance of Random Access Channel, reduce the collision rate that inserts at random, and then improved the success rate that terminal inserts at random.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 optimizes the method flow diagram that terminal inserts at random for the embodiment of the invention 1;

Fig. 2 optimizes the method flow diagram that terminal inserts at random for the embodiment of the invention 1;

Fig. 3 then installs composition frame chart for the network that the embodiment of the invention 1 optimization terminal inserts at random;

Fig. 4 is the composition frame chart of the embodiment of the invention 1 terminal;

Fig. 5 optimizes the method flow diagram that terminal inserts at random for the embodiment of the invention 2;

Fig. 6 is the measurement point distribution map that the embodiment of the invention 2 is optimized the number of times of access attempts at random in the terminal accidental access method;

Fig. 7 is that the network that the embodiment of the

invention

2,3,4,5 optimization terminals insert at random then installs composition frame chart;

Fig. 8 optimizes the method flow diagram that terminal inserts at random for the embodiment of the invention 3;

Fig. 9 optimizes the method flow diagram that terminal inserts at random for the embodiment of the invention 4;

Figure 10 optimizes the method flow diagram that terminal inserts at random for the embodiment of the invention 5;

Figure 11 be the embodiment of the invention 5 optimize in the terminal accidental access methods once at random turn-on time the measurement point distribution map.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.

Embodiment 1

The embodiment of the invention provides a kind of method that terminal inserts at random of optimizing, and as shown in Figure 1, this method comprises:

101, the access at random that reports of eNB receiving terminal is measured, above-mentioned an access at random when measuring that reports at receiving terminal.

In the specific implementation process, above-mentioned eNB can receive only the above-mentioned measurement item that inserts at random of a terminal to report, and above-mentioned the access at random that also can receive a plurality of terminal to report in the residential quarter certain hour measured item.Above-mentionedly insert to measure the combination of item between comprising in any or the following parameter in the following parameter arbitrarily at random: at random access attempts number of times, the accidental access response frequency of failure, at random access contention solve the frequency of failure, link load, at random insert the data volume that sends, at random insert the used time, at random insert the rollback number of times, at random insert used time of rollback, high-rise number of times of initiating again to insert at random, insert and reach maximum transmit power limit at random.

102, after receiving the above-mentioned measurement of access at random item, change the configuration parameter of access at random according to the above-mentioned measurement item that inserts at random that receives.

The combination that above-mentioned configuration parameter comprises in any or the following parameter in the following parameter arbitrarily: the power contorl parameters of the grouping of random access channel resource, random access lead code, rollback control parameter, random access lead code.

When above-mentioned eNB changes the configuration parameter that inserts at random according to the above-mentioned measurement of the access at random item that receives, eNB can measure the analysis result of item according to the access at random that an above-mentioned terminal that receives sends, perhaps measure an analysis result of the mean value that calculates according to a plurality of above-mentioned the access at random in the residential quarter certain hour that receives, the configuration parameter that change inserts at random, the configuration parameter that terminal is inserted at random obtains reasonable configuration, in order to make terminal when inserting at random, can reduce collision probability.

The embodiment of the invention provides a kind of method that terminal inserts at random of optimizing, and as shown in Figure 2, this method comprises:

201, the terminal statistics inserts at random and measures item.Wherein, above-mentionedly insert to measure the combination of item between comprising in any or the following parameter in the following parameter arbitrarily at random:

At random access attempts number of times, the accidental access response frequency of failure, at random access contention solve the frequency of failure, link load, at random insert the data volume that sends, at random insert the used time, at random insert the rollback number of times, at random insert used time of rollback, high-rise number of times of initiating again to insert at random, insert and reach maximum transmit power limit at random.

202, after this terminal is good with the above-mentioned measurement of access at random item statistics, the above-mentioned measurement of the access at random item of adding up is reported evolution station eNB, optimize a terminal with indication eNB according to the above-mentioned measurement of access at random item and insert at random.

Wherein, this terminal insert to be measured when reporting eNB at random with above-mentioned, can adopt but is not limited to following dual mode, and above-mentioned dual mode is specially: first kind, will above-mentionedly insert at random to measure by radio resource control RRC message and report eNB; Second kind, the above-mentioned measurement item that inserts at random that will be stored as the journal file form by user's face reports eNB.

The embodiment of the invention provides a kind of network side apparatus that terminal inserts of optimizing, and as shown in Figure 3, this network side apparatus comprises: receiving element 31 and change unit 32.

Receiving element 31 is used for the measurement of the access at random item that receiving terminal reports.When above-mentioned receiving element 31 is measured item in the access at random of the above-mentioned terminal to report of reception, can receive only the above-mentioned measurement item that inserts at random of a terminal to report, item is measured in the above-mentioned access at random that also can receive a plurality of terminal to report in the residential quarter certain hour.Above-mentionedly insert to measure the combination that item comprises in any or the following parameter in the following parameter arbitrarily at random: at random access attempts number of times, the accidental access response frequency of failure, at random access contention solve the frequency of failure, link load, at random insert the data volume that sends, at random insert the used time, at random insert the rollback number of times, at random insert used time of rollback, high-rise number of times of initiating again to insert at random, insert and reach maximum transmit power limit at random.

Receive the measurement of the access at random item of this terminal transmission at above-mentioned receiving element 31 after, described network side apparatus is measured item by change unit 32 according to the access at random that above-mentioned receiving element 31 receives, the loading condition of estimation Random Access Channel; The configuration parameter that terminal inserts is at random changed the combination that above-mentioned configuration parameter comprises in any or the following parameter in the following parameter arbitrarily: the power contorl parameters of the grouping of random access channel resource, random access lead code, rollback control parameter, random access lead code.

The network side apparatus that optimization terminal in this embodiment inserts at random can be positioned at evolution base station eNB in the LTE system.

The embodiment of the invention provides a kind of terminal, and as shown in Figure 4, this terminal comprises: statistic unit 41 and report unit 42.

Terminal inserts at random by statistic unit 41 statistics and measures item.Wherein, above-mentionedly insert to measure the combination that item comprises in any or the following parameter in the following parameter arbitrarily at random: at random access attempts number of times, the accidental access response frequency of failure, at random access contention solve the frequency of failure, link load, at random insert the data volume that sends, at random insert the used time, at random insert the rollback number of times, at random insert used time of rollback, high-rise number of times of initiating again to insert at random, insert and reach maximum transmit power limit at random.

After this terminal has been added up above-mentioned insert to measure at random, measure item and report eNB by above-mentioned the access at random that reports that unit 42 will add up, measure an optimization terminal and insert at random according to above-mentioned the access at random with indication eNB.Wherein, this terminal insert to be measured when reporting eNB at random with above-mentioned, can adopt but is not limited to following dual mode, and above-mentioned dual mode is specially: first kind, will above-mentionedly insert at random to measure by radio resource control RRC message and report eNB; Second kind, the above-mentioned measurement item that inserts at random that will be stored as the journal file form by user's face reports eNB.

Technical solution of the present invention, the access at random that self the arranges measurement item that to add up by terminal reports eNB, above-mentioned eNB measures item by above-mentioned the access at random that analysis receives, estimate the loading condition of Random Access Channel, and change the configuration parameter that terminal inserts at random according to the loading condition of above-mentioned Random Access Channel.Owing to the above-mentioned measurement item that inserts at random is that item is measured in the access at random that terminal is obtained, make clearer that the loading condition of the Random Access Channel of the residential quarter of eNB understands, make the more accurate of the terminal Random Access Channel of eNB load estimation, thereby make eNB according to analyzing the measurement of the access at random item that the above-mentioned terminal that receives sends, the change of the relevant parameter that terminal is inserted at random is more reasonable and more accurate, make terminal when inserting at random, the resource abundance of access channel, can reduce the collision rate of access, and then improve the success rate that terminal inserts at random.

Embodiment 2

The embodiment of the invention provides a kind of method that terminal inserts at random of optimizing, in the process that the optimization terminal inserts at random, generally the configuration parameter that inserts at random by the change terminal is realized the optimization that terminal inserts at random, and then the collision probability when reducing terminal and inserting at random, improve the success rate that terminal inserts.Wherein, the combination that comprises in any or the following parameter in the following parameter arbitrarily of above-mentioned configuration parameter: the power contorl parameters of the grouping of random access channel resource, random access lead code, rollback control parameter, random access lead code.The embodiment of the invention is example with the initial expectation received power that change inserts the lead code of residential quarter at random, specifies to optimize the process that terminal inserts at random, and as shown in Figure 5, this method comprises:

501, the terminal statistics inserts at random and measures item; Wherein above-mentionedly insert to measure the combination of item between comprising in any or the following parameter in the following parameter arbitrarily at random:

At random the number of times of the number of attempt of Jie Ruing, accidental access response failure, insert and reach maximum transmit power limit at random.Wherein, the above-mentioned number of attempt that inserts at random is the number of attempt that terminal inserts in once successful random access procedure at random, and the above-mentioned number of times that inserts at random is specifically as follows: the transmission number of attempt of terminal lead code in once successful random access procedure; The perhaps soaring number of times of terminal initial received power of lead code in once successful random access procedure.

The above-mentioned accidental access response frequency of failure is terminal accidental access response frequency of failure in once successful random access procedure, and wherein the above-mentioned accidental access response frequency of failure is specially: the number of times sum that does not comprise the lead code sign that above-mentioned terminal sends in terminal is not received accidental access response message in once successful random access procedure number of times and the above-mentioned accidental access response message that receives.

It is that terminal compete in once successful random access procedure and solved the frequency of failure that above-mentioned access contention at random solves the frequency of failure, and wherein competition solves the frequency of failure and is specially terminal and compete in once successful random access procedure and solve the timer expiry number of times and compete the number of times sum that does not include the resource request information of terminal transmission in the solution message in the above-mentioned random access procedure.

Present embodiment is that the number of attempt that terminal inserts in once successful random access procedure at random is that example specifies the process that terminal inserts at random of optimizing with the above-mentioned parameter of measuring item that inserts at random.

Wherein, the statistics of the number of attempt that terminal inserts in once successful random access procedure at random is specially as shown in Figure 6: the concrete timing point that inserts the measurement item at random of the number of attempt that this terminal inserts in once successful random access procedure is at random seen the A of Fig. 6, B, C 3 points.

At the A point, arranging at random, the access attempts number of times is 1; At the B point, if in the accidental access response time window, do not receive and insert corresponding message (RAR, Random Access Response) at random; Perhaps, do not comprise the sign of the Preamble (lead code) that terminal sent just now in the accidental access response message that receives, then the access attempts number of times adds 1 at random; At the C point, if competition solves timer expiry, perhaps competition solves in the message and does not include the message content that terminal sends in message 3, and then the access attempts number of times adds 1 at random.

502, this terminal has been added up the number of attempt that above-mentioned terminal inserts at random in once successful random access procedure after, item is measured in the access at random that comprises above-mentioned number of attempt of statistics reported eNB, measure an optimization terminal with the access at random of indicating the number of attempt that this eNB inserts at random according to above-mentioned terminal in once successful random access procedure and insert at random.

Wherein, when above-mentioned terminal reports above-mentioned eNB with the above-mentioned measurement of access at random item, can adopt but be not limited to following dual mode, above-mentioned dual mode is specially: first kind, by radio resource control RRC message above-mentioned the access at random measured item and reported above-mentioned eNB; Second kind, the above-mentioned measurement item that inserts at random that will be stored as the journal file form by user's face reports above-mentioned eNB.Wherein, by radio resource control RRC message the described measurement item that inserts is at random reported above-mentioned eNB, comprising: described terminal receives RRC and connects reconfiguration message, and this RRC connects and comprises the measurement of the access at random item that need report in the reconfiguration message; Perhaps, above-mentioned terminal connects to reshuffle to above-mentioned eNB transmission RRC finishes message, and this RRC connection is reshuffled to finish and comprised the measurement of the access at random item that reports in the message.

When 503, the access at random of the number of attempt that inserts at random in once successful random access procedure of the eNB terminal that receives above-mentioned terminal to report is measured, can receive only the above-mentioned measurement item that inserts at random of a terminal to report, the above-mentioned access at random that also can receive a plurality of terminal to report in the residential quarter certain hour measured item.Measuring item with the above-mentioned access at random of a plurality of terminal to report in residential quarter certain hour of eNB reception in the embodiment of the invention is that example specifies.

504, after eNB receives the above-mentioned measurement of the access at random item of a plurality of terminal to report in the certain hour of residential quarter, on this eNB statistics the above-mentioned number of times of access attempts at random that receives in the residential quarter certain hour is averaged calculating, obtain average access attempts number of times.

505, this eNB judges whether the average access attempts number of times that above-mentioned average computation obtains counts thresholding above default access attempts number of times, and above-mentioned default access attempts number of times thresholding is an empirical value, can arrange according to actual conditions; If above-mentioned average access attempts number of times surpasses default access attempts number of times thresholding, then execution in step 506, otherwise execution in step 507.

506, when eNB judges that above-mentioned average access attempts number of times surpasses default access attempts number of times thresholding, show that terminal after applying at random access failure, needs constantly to adjust the power that sends random access lead code, up to inserting successfully at random.Because terminal is when initial random access, the transmitting power of using is the initial expectation received power of the lead code of residential quarter, when so the power of launching above-mentioned lead code by continuous rise when terminal hits pay dirk and inserts, when eNB judges that above-mentioned average access attempts number of times surpasses default access attempts number of times thresholding, eNB increases the initial expectation received power of lead code of above-mentioned residential quarter, make terminal when inserting at random, can in less number of attempt, just can realize the success that inserts at random.

Can insert at random normally when 507, terminal networks at random, eNB does not need to change the initial expectation received power of lead code of above-mentioned residential quarter.

Wherein, measure terminal to be inserted at random according to the access at random of terminal number of times of accidental access response failure in once successful random access procedure and be optimized processing procedure, basic identical to step 506 with the step 501 in above-described embodiment, the parameter that is the above-mentioned measurement of access at random item is the number of times of terminal accidental access response failure in once successful random access procedure, and this inserts the B point that the concrete timing point of measuring item is seen Fig. 6 at random; At the B point, if in the accidental access response time window, do not receive and insert corresponding message (RAR, Random Access Response) at random; Perhaps, do not comprise the sign of the Preamble that terminal sent just now in the accidental access response message that receives, then the accidental access response frequency of failure adds 1; And when execution in step 505, eNB is according to the average response frequency of failure that calculates, judge whether the above-mentioned average response frequency of failure surpasses default response frequency of failure thresholding, if the above-mentioned average response frequency of failure surpasses default response frequency of failure thresholding, then execution in step 506, otherwise execution in step 507.

Wherein, the measurement item that inserts at random of launching the maximum transmission power of lead code according to terminal in once successful random access procedure inserts in the process that is optimized processing at random to terminal, basic identical to step 506 with the step 501 in above-described embodiment, be the above-mentioned parameter of insert measuring at random be that terminal inserts at random in a random access procedure and reaches maximum transmit power limit, and when execution in step 505, the quantity of the terminal that obtains according to statistics, whether the quantity of judging the terminal of above-mentioned statistics surpasses default quantity thresholding, if the quantity of the above-mentioned terminal that above-mentioned statistics obtains surpasses default quantity thresholding, then execution in step 506, otherwise execution in step 507.

Wherein, in step 503, insert when measuring item at random if eNB receives the above-mentioned of a terminal to report, in step 504, the quantity that does not then need to calculate the mean value of above-mentioned access attempts number of times or the response frequency of failure or reach the terminal of maximum power, the above-mentioned access attempts number of times that eNB will receive and the number of attempt thresholding of preliminary election setting compare, just can judge whether above-mentioned number of attempt surpasses default number of attempt thresholding, if when the above-mentioned access attempts number of times that receives had surpassed above-mentioned default access attempts number of times thresholding, execution in step 506 just can realize the optimization process that terminal inserts at random; Otherwise execution in step 507; Perhaps

The response frequency of failure thresholding of the above-mentioned response frequency of failure that eNB will receive and preliminary election setting compares, just can judge whether the above-mentioned response frequency of failure surpasses default response frequency of failure thresholding, if when the above-mentioned response frequency of failure that receives had surpassed above-mentioned default response frequency of failure thresholding, execution in step 506 just can realize the optimization process that terminal inserts at random; Otherwise execution in step 507; Perhaps

The above-mentioned maximum power that eNB will receive compares with the maximum power thresholding of presetting, just can judge whether above-mentioned maximum power surpasses default power threshold, if when the above-mentioned above-mentioned maximum power that receives had surpassed above-mentioned default power threshold, execution in step 506 just can realize the optimization process that terminal inserts at random; Otherwise execution in step 507.

The embodiment of the invention provides a kind of network side apparatus that terminal inserts at random of optimizing, and as shown in Figure 7, this device comprises: receiving element 71 and change unit 72.

Receiving element 71 is used for access at random that receiving terminal reports to be measured, and wherein above-mentioned the access at random measured the combination of item between comprising in any or the following parameter in the following parameter arbitrarily: at random the number of times of the number of attempt of Jie Ruing, accidental access response failure, access reaches maximum transmit power limit at random.Above-mentioned receiving element 71 is above-mentioned the access at random when measuring that receiving terminal sends, and above-mentioned the access at random that can receive only a terminal to report measured, and above-mentioned the access at random that also can receive a plurality of terminal to report the residential quarter in measured item.

Receive the measurement of the access at random item of above-mentioned terminal transmission at eNB after, the network side apparatus that above-mentioned optimization terminal inserts is analyzed the above-mentioned access at random that receives by change unit 72 and is measured item, the above-mentioned value of measuring item and the thresholding of being scheduled to of inserting at random compared, obtain an analysis result that inserts at random, and determine the influence of the load of Random Access Channel according to above-mentioned analysis result; After having analyzed above-mentioned influence of insert measuring at random to Random Access Channel, change the initial expectation received power of above-mentioned configuration parameter lead code of residential quarter when inserting at random by the configuration parameter that the 72 pairs of terminals in above-mentioned change unit insert at random.

Wherein, above-mentioned change unit 72 also comprises: computing module 721, judge module 722 and change module 723.

Above-mentioned computing module 721 is used for: terminal is during at the number of times of access attempts at random that once successful random access procedure carries out; Perhaps during the number of times of terminal accidental access response failure in once successful random access procedure; Perhaps terminal inserts at random in a random access procedure and reaches maximum transmit power limit; The above-mentioned access attempts number of times that receives in the residential quarter certain hour or the number of times that responds failure are carried out statistical average calculating; Perhaps when the above-mentioned parameter that inserts the measurement item at random that receives reaches maximum transmit power limit for inserting at random in a random access procedure when terminal, add up the quantity that inserts the terminal that reaches maximum transmit power limit at random that receives in the residential quarter certain hour;

After calculating was finished, above-mentioned change unit 72 judged by judge module 722 whether the average access attempts number of times that above-mentioned computing module 721 calculates surpasses default access attempts number of times thresholding; When if above-mentioned judge module 722 judges that stating average access attempts number of times that computing module 721 calculates has surpassed above-mentioned default access attempts number of times thresholding, above-mentioned change module 723 is also for increasing the initial expectation received power of the lead code of residential quarter; Perhaps

Above-mentioned change unit 72 judges by judge module 722 whether the average response frequency of failure that above-mentioned computing module 721 calculates surpasses default response frequency of failure thresholding; When if above-mentioned judge module 722 judges that stating the average response frequency of failure that computing module 721 calculates has surpassed above-mentioned default response frequency of failure thresholding, above-mentioned change module 723 is also for increasing the initial expectation received power of the lead code of residential quarter; Perhaps

Above-mentioned change unit 72 judges by judge module 722 whether the quantity that inserts the terminal that reaches maximum transmit power limit at random that above-mentioned computing module 721 statistics reach reaches default quantity thresholding; If above-mentioned judge module 722 judges when the quantity that inserts the terminal that reaches maximum transmit power limit at random that above-mentioned computing module 721 statistics reach surpasses default quantity thresholding, above-mentioned change module 723 is also for increasing the initial expectation received power of the lead code of above-mentioned residential quarter.

The embodiment of the invention provides a kind of terminal, and as shown in Figure 3, this terminal comprises: statistic unit 31 and report unit 32.

Terminal inserts at random by above-mentioned statistic unit 31 statistics and measures item; Combination between above-mentioned insert to measure at random in any or the following parameter that comprises in the following parameter arbitrarily: at random the number of times of the number of attempt of Jie Ruing, accidental access response failure, access reaches maximum transmit power limit at random.

After having added up above-mentioned insert to measure at random, this terminal is also measured item and is reported eNB by above-mentioned the access at random that reports that unit 32 will add up, measures an optimization terminal and inserts at random according to above-mentioned the access at random to indicate this eNB.Wherein, this terminal insert to be measured when reporting eNB at random with above-mentioned, can adopt but is not limited to following dual mode, and above-mentioned dual mode is specially: first kind, will above-mentionedly insert at random to measure by radio resource control information and report above-mentioned eNB; Second kind, the above-mentioned measurement item that inserts at random that will be stored as the journal file form by user's face reports above-mentioned eNB.Wherein, when above-mentioned terminal reported above-mentioned eNB by radio resource control RRC message with the above-mentioned measurement of access at random item, comprising: terminal received RRC and connects reconfiguration message, comprises the measurement of the access at random item that need report in this RRC connection reconfiguration message; Perhaps, above-mentioned terminal connects to reshuffle to above-mentioned eNB transmission RRC finishes message, and this RRC connection is reshuffled to finish and comprised the measurement of the access at random item that reports in the message.

In the embodiment of the invention, the number of times that the access attempts at random that eNB uploads according to terminal inserts perhaps according to the number of times of accidental access response failure, perhaps reaches maximum transmit power limit according to inserting at random; Know that terminal sends the power of the lead code that inserts at random, the i.e. initial expectation received power of communicty preambel sign indicating number; When eNB judges that terminal that above-mentioned terminal uploads attempts inserting in successful random access procedure once number of times surpasses default number of attempt thresholding, perhaps judge terminal that above-mentioned terminal uploads when the number of times of once successful accidental access response failure surpasses default response frequency of failure thresholding, judge that perhaps terminal that above-mentioned terminal is uploaded inserts when reaching maximum transmit power limit and surpassing the power threshold of presetting at random in once successful random access procedure; The power ratio of knowing the lead code that the terminal transmission inserts at random is less, the initial expectation received power that is the communicty preambel sign indicating number is smaller, eNB is by increasing the initial expectation received power of communicty preambel sign indicating number, the power ratio that sends above-mentioned lead code when terminal is inserted at random is bigger, thereby make terminal when inserting at random, just can successfully insert through fewer trial, terminal is reduced because constantly attempting inserting the Internet resources that take, reduce the collision rate when terminal networks at random, improved the success rate that inserts at random.

Embodiment 3

The embodiment of the invention provides a kind of method that terminal inserts at random of optimizing, and the embodiment of the invention is that example specifies the process that above-mentioned optimization terminal inserts at random with change Physical Random Access Channel resource, and as shown in Figure 8, this method comprises:

801, the terminal statistics inserts at random and measures item; Wherein, the above-mentioned parameter of insert measuring at random is the access contention solution frequency of failure at random.It is that terminal is competed the solution frequency of failure in once successful random access procedure that above-mentioned access contention at random solves the frequency of failure, and wherein the above-mentioned solution of the access contention at random frequency of failure is: terminal is competed in once successful random access procedure and is solved the number of times sum that does not include the resource request information of terminal transmission in timer expiry number of times and the competition solution message.

Wherein, terminal is competed the statistics of the frequency of failure and is specifically seen C point shown in Figure 6 in once successful random access procedure, if solve timer expiry in the competition of C point, perhaps competition solves in the message and does not include the message content that terminal sends in message 3, and then competition solution timer expiry number of times adds 1.

802, this terminal added up terminal in once successful random access procedure, compete solve the failure number after, the measurement of the access at random item of adding up that comprises the above-mentioned competition solution frequency of failure is reported eNB, insert at random to indicate this eNB in once successful random access procedure, to compete the measurement of an access at random item optimization terminal that solves the frequency of failure according to above-mentioned terminal.

Wherein, when above-mentioned terminal reports above-mentioned eNB with the above-mentioned measurement of access at random item, can adopt but be not limited to following dual mode, above-mentioned dual mode is specially: first kind, by radio resource control information above-mentioned the access at random measured item and reported above-mentioned eNB; Second kind, the above-mentioned measurement item that inserts at random that will be stored as the journal file form by user's face reports above-mentioned eNB.Wherein, when terminal reported above-mentioned eNB by radio resource control RRC message with the above-mentioned measurement of access at random item, comprising: above-mentioned terminal received RRC and connects reconfiguration message, comprises the measurement of the access at random item that need report in this RRC connection reconfiguration message; Perhaps, above-mentioned terminal connects to reshuffle to above-mentioned eNB transmission RRC finishes message, and this RRC connection is reshuffled to finish and comprised the measurement of the access at random item that reports in the message.

803, the terminal that reports of above-mentioned eNB receiving terminal is competed the access at random that solves the frequency of failure and is measured in once successful random access procedure; When wherein item is measured in the access at random that reports at above-mentioned eNB receiving terminal, can receive only the above-mentioned measurement item that inserts at random of a terminal to report, item is measured in the above-mentioned access at random that also can receive a plurality of terminal to report in the residential quarter certain hour.Measuring item with the above-mentioned access at random of a plurality of terminal to report in residential quarter certain hour of above-mentioned eNB reception in the embodiment of the invention is that example specifies.

804, after item is measured in the access at random of a plurality of terminal to report in above-mentioned eNB receives an above-mentioned residential quarter certain hour, on the eNB statistics the above-mentioned competition that receives in the residential quarter certain hour is solved the frequency of failure and average calculating, obtain average competition and solve the frequency of failure.

805, eNB judges whether the competition solution failure average time that above-mentioned average computation obtains solves frequency of failure thresholding above default competition, and above-mentioned default number of times thresholding is an empirical value, can arrange according to actual conditions; Surpass default competition solution frequency of failure thresholding if above-mentioned average competition solves the frequency of failure, then execution in step 806, otherwise execution in step 807.

806, when judging above-mentioned average competition, eNB solves the frequency of failure above default competition solution frequency of failure thresholding, the duty ratio that shows current Random Access Channel is higher, the terminal random access channel resource can not satisfy the request amount that current terminal inserts at random, the access at random that must wait for other that inserts at random of a terminal is finished, could compete and insert at random successfully; In order to guarantee the success rate of terminal access, reduce the collision rate that terminal inserts, when eNB judged that the above-mentioned average competition solution frequency of failure surpasses default competition solution frequency of failure thresholding, eNB increased the residential quarter for the random access channel resource that inserts at random.

807, eNB does not need the random access channel resource that the residential quarter is used for inserting is at random adjusted, and finishes to optimize the processing procedure that terminal inserts at random.

Wherein, in step 803, when if item is measured in the above-mentioned access at random of a terminal to report of eNB reception, in step 804, then do not need to calculate the mean value that above-mentioned competition solves the frequency of failure, the above-mentioned competition that eNB will receive solves the number of times of failure and the competition solution frequency of failure thresholding of preliminary election setting compares, just can judge that whether above-mentioned competition solves the number of times of failure above default competition solution frequency of failure thresholding, if the above-mentioned competition that receives solves the number of times of failure when having surpassed above-mentioned default competition and solving frequency of failure thresholding, execution in step 806 just can realize the optimization process that terminal inserts at random, otherwise execution in step 807.

Receiving element 71 is used for the measurement of the access at random item that receiving terminal reports, the above-mentioned parameter of measuring item that inserts at random is that terminal is competed the solution frequency of failure in once successful random access procedure, when the measurement of the access at random item that above-mentioned receiving element 71 receiving terminals report, can receive only the above-mentioned measurement item that inserts at random of a terminal to report, the above-mentioned access at random that also can receive a plurality of terminal to report in the residential quarter certain hour measured item; After item is measured in the access at random that receives above-mentioned terminal transmission, the network side apparatus that above-mentioned optimization terminal inserts is by change unit 72 statistics and analyze the above-mentioned measurement of the access at random item that receives, and determines the influence of the load of Random Access Channel according to above-mentioned analysis result; After having analyzed the influence of the above-mentioned measurement item of access at random to Random Access Channel, by above-mentioned change unit 72, the configuration parameter that terminal inserts at random to be changed, above-mentioned configuration parameter is the resource of Physical Random Access Channel.

Wherein, above-mentioned change unit 72 also comprises: computing module 721, judge module 722 and change module 723.When the number of times of an access contention at random that carries out for a terminal solution failure is measured in the above-mentioned access at random that receives in once successful random access procedure, above-mentioned computing module 721 is used for that the above-mentioned competition that receives in the residential quarter certain hour is solved the number of times of failing and averages calculating, obtains average competition and solves the frequency of failure.After obtaining the above-mentioned average competition solution frequency of failure, above-mentioned change unit 72 judges by judge module 722 whether the average competition solution frequency of failure that above-mentioned computing module 721 calculates solves frequency of failure thresholding above default competition; If above-mentioned judge module 722 judges that above-mentioned change module 723 also was used for receiving the random access channel resource that inserts at random for increasing above-mentioned residential quarter when average competition that above-mentioned computing module 721 calculates solved the frequency of failure and surpassed above-mentioned default competition and solve frequency of failure thresholding.

Terminal is added up access at random by above-mentioned statistic unit 31 and is measured item, and the above-mentioned parameter that inserts the measurement item at random is that the access contention at random that terminal is carried out in once successful random access procedure solves the number of times of failing; After having added up above-mentioned insert to measure at random, above-mentioned terminal is measured item and is reported eNB by above-mentioned above-mentioned the access at random that reports that unit 32 will add up, measures an optimization terminal and inserts at random according to above-mentioned the access at random to indicate this eNB.Wherein, when above-mentioned terminal reports above-mentioned eNB with the above-mentioned measurement of access at random item, can adopt but be not limited to following dual mode, above-mentioned dual mode is specially: first kind, by radio resource control information above-mentioned the access at random measured item and reported above-mentioned eNB; Second kind, the above-mentioned measurement item that inserts at random that will be stored as the journal file form by user's face reports above-mentioned eNB.Wherein, by radio resource control RRC message the described measurement item that inserts is at random reported above-mentioned eNB, comprising: above-mentioned terminal receives RRC and connects reconfiguration message, and this RRC connects and comprises the measurement of the access at random item that need report in the reconfiguration message; Perhaps, above-mentioned terminal connects to reshuffle to above-mentioned eNB transmission RRC finishes message, and this RRC connection is reshuffled to finish and comprised the measurement of the access at random item that reports in the message.

In the embodiment of the invention, the access contention at random that eNB carries out in once successful random access procedure according to the terminal that terminal is uploaded solves the number of times of timer expiry; Know the loading condition of Random Access Channel; When eNB judges that number of times that access contention at random that terminal that above-mentioned terminal is uploaded is carried out solves timer expiry surpasses default expired times thresholding in once successful random access procedure, the duty ratio of knowing the Physical Random Access Channel that the residential quarter is used for inserting at random is higher, cause a terminal access at random will other insert at random successfully send data after, just can finish at random and insert, thereby when being inserted at random, terminal to constantly attempt inserting, and the too much unsuccessful collision rate that request can increase the weight of to insert at random that inserts at random, the success rate that terminal is inserted also decreases; So when eNB judges that number of times that access contention at random that terminal that above-mentioned terminal is uploaded is carried out solves timer expiry surpasses default expired times thresholding in once successful random access procedure, increase the residential quarter and be used for receiving the Physical Random Access Channel resource that inserts at random, thereby make terminal when inserting at random, used by enough Random Access Channel, avoided the higher Random Access Channel of the same load of a lot of terminal challenge, improved utilization rate of network resource, reduce the collision rate that inserts at random, improved the success rate that inserts at random.

Embodiment 4

The embodiment of the invention provides a kind of method that terminal inserts at random of optimizing, and the embodiment of the invention specifies the process that the optimization terminal inserts at random with the example that is grouped into of change random access lead code, and as shown in Figure 9, this method comprises:

901, the terminal statistics inserts at random and measures item; Wherein above-mentionedly insert to measure the combination of item between comprising in any or the following parameter in the following parameter arbitrarily at random: link load, insert the data volume that sends at random.Wherein, above-mentioned link load is the downlink loss that above-mentioned link load calculates for the end side physical layer; The above-mentioned data volume that sends that inserts at random is that terminal inserts the data volume that sends at random in the process that once inserts at random, and the above-mentioned data volume that sends that inserts at random is specially: the 3rd data volume that message comprises that terminal sends in the process that once inserts at random; The perhaps size of the 3rd message sending in the process that once inserts at random of terminal, above-mentioned the 3rd message is that the resource that terminal uses eNB to distribute sends resource request (Msg3) at shared channel.

The invention process be that the downlink loss that is used for open Loop Power control that the end side physical layer is calculated is example with the above-mentioned parameter of insert measuring at random, specify the process that terminal inserts at random of optimizing.

902, above-mentioned terminal added up that the end side physical layer calculates be used for the downlink loss of open Loop Power control after, item is measured in the access at random that comprises above-mentioned downlink loss of statistics reported eNB, insert at random to indicate this eNB to optimize terminal according to the measurement of the access at random item of above-mentioned downlink loss.

Wherein, when above-mentioned terminal reports above-mentioned eNB with the above-mentioned measurement of access at random item, can adopt but be not limited to following dual mode, above-mentioned dual mode is specially: first kind, by radio resource control information above-mentioned the access at random measured item and reported above-mentioned eNB; Second kind, the above-mentioned measurement item that inserts at random that will be stored as the journal file form by user's face reports above-mentioned eNB.Wherein, by radio resource control RRC message the above-mentioned measurement item that inserts is at random reported above-mentioned eNB, comprising: above-mentioned terminal receives RRC and connects reconfiguration message, and this RRC connects and comprises the measurement of the access at random item that need report in the reconfiguration message; Perhaps, above-mentioned terminal connects to reshuffle to above-mentioned eNB transmission RRC finishes message, and this RRC connection is reshuffled to finish and comprised the measurement of the access at random item that reports in the message.

903, the access at random of the above-mentioned downlink loss that reports of eNB receiving terminal is measured, according to the above-mentioned downlink loss that receives, obtains the network condition of the grouping at the lead code place that terminal selects; When the downlink loss of the above-mentioned open Loop Power control that receives surpassed default loss thresholding, above-mentioned loss thresholding was an empirical value, can be according to the actual conditions setting; Show that the current radio condition of above-mentioned terminal is poor, the data resource that sends surpasses the resource size thresholding that sets in advance, and what select is B group lead code in the grouping of communicty preambel sign indicating number, so when eNB judges that above-mentioned downlink loss that receiving terminal reports surpasses predetermined loss thresholding, execution in step 904; Otherwise execution in step 905.

When 904, the above-mentioned downlink loss that reports when eNB judgement receiving terminal surpasses predetermined loss thresholding, show the grouping of lead code in the current residential quarter, can not make terminal when inserting at random, reasonably choose non-dedicated preamble, so eNB is by adjusting the lead code grouping of above-mentioned residential quarter, and the divide into groups size of data volume of corresponding terminal transmission of adjustment and above-mentioned lead code.

905, eNB does not need to adjust the grouping of above-mentioned lead code, does not need to adjust and the divide into groups size of the data volume that corresponding terminal sends of above-mentioned lead code yet.

The embodiment of the invention provides a kind of network side apparatus that terminal inserts at random of optimizing, and as shown in Figure 2, this device comprises: receiving element 21 and change unit 22.

Receiving element 21 is used for access at random that receiving terminal reports to be measured, when above-mentioned insert at random to measure comprise: the size of the data volume that the downlink loss that is used for open Loop Power control that the end side physical layer is calculated or terminal send in the process that once inserts at random.

After item was measured in the access at random that receives above-mentioned terminal transmission, the network side apparatus that above-mentioned optimization terminal inserts was measured item by the above-mentioned access at random that receives of 22 analyses of change unit, and determines the grouping situation of communicty preambel sign indicating number according to above-mentioned analysis result; After the grouping situation of analyzing complete primary school district lead code is to the influence that inserts at random, by above-mentioned change unit 22, the grouping that the residential quarter is used for the lead code that inserts is at random adjusted, and the divide into groups size of data volume of corresponding terminal transmission of corresponding adjustment and above-mentioned lead code.

Terminal is measured item by the access at random of the downlink loss that is used for open Loop Power control that above-mentioned statistic unit 31 statistics end side physical layers are calculated, the perhaps size of the data volume that sends in the process that once inserts at random of terminal, perhaps the access at random that combines of the size of the data volume that sends in the process that once inserts at random of the downlink loss that is used for open Loop Power control calculated of end side physical layer and terminal is measured.

After having added up above-mentioned insert to measure at random, above-mentioned terminal is measured item and is reported eNB by above-mentioned above-mentioned the access at random that reports that unit 32 will add up, measures an optimization terminal and inserts at random according to above-mentioned the access at random with indication eNB.Wherein, above-mentioned terminal insert to be measured when reporting eNB at random with above-mentioned, can adopt but is not limited to following dual mode, and above-mentioned dual mode is specially: first kind, will above-mentionedly insert at random to measure by radio resource control information and report above-mentioned eNB; Second kind, the above-mentioned measurement item that inserts at random that will be stored as the journal file form by user's face reports above-mentioned eNB.Wherein, by radio resource control RRC message the above-mentioned measurement item that inserts is at random reported above-mentioned eNB, comprising: above-mentioned terminal receives RRC and connects reconfiguration message, and this RRC connects and comprises the measurement of the access at random item that need report in the reconfiguration message; Perhaps, above-mentioned terminal connects to reshuffle to above-mentioned eNB transmission RRC finishes message, and this RRC connection is reshuffled to finish and comprised the measurement of the access at random item that reports in the message.

In the embodiment of the invention, the downlink loss that is used for open Loop Power control that eNB calculates according to the end side physical layer that terminal is uploaded; The perhaps size of the data volume that in the process that once inserts at random, sends of terminal; Know the grouping of random access lead code; When measuring item according to the above-mentioned access at random that receives, eNB knows, the grouping of current residential quarter random access lead code is unreasonable, cause the loss ratio of access downlink at random bigger, thereby make the duty ratio of Random Access Channel higher, perhaps because of the Random Access Channel that takies of many long periods of transmission data resource, the collision rate that causes inserting at random rises; So when the loss ratio of the above-mentioned down link that receives as eNB data resource higher or that terminal sends is bigger, will divide into groups again to the above-mentioned lead code that inserts at random, and the size of the above-mentioned resource that terminal is sent is done corresponding adjustment.

Embodiment 5

The embodiment of the invention provides a kind of method that terminal inserts at random of optimizing, and the embodiment of the invention specifies the process that the optimization terminal inserts at random with the example that is configured to that the change rollback inserts at random, and as shown in figure 10, this method comprises:

1001, the terminal statistics inserts at random and measures item; Wherein above-mentionedly insert to measure the combination of item between comprising in any or the following parameter in the following parameter arbitrarily at random:

Used time in the random access procedure, at random insert the rollback number of times, insert the used time of rollback at random.Above-mentioned to insert the used time at random be terminal in random access procedure used time wherein; The number of times of above-mentioned to insert the rollback number of times at random be terminal in random access procedure rollback; The above-mentioned rollback time is terminal in random access procedure the used time of rollback.

Present embodiment with terminal in random access procedure used time insert at random that to measure be that example specifies the process that terminal inserts at random of optimizing.

Wherein, the statistics of terminal used time in random access procedure is specially as shown in figure 19: specifically measure starting point and measure end point and be respectively A point and B1 among Figure 11, B2 point.

At the A point, finish random access resource when terminal and select flow process, when inserting Preamble at random to physical layer indication transmission, pick up counting; At the B1 point, after UE successfully receives accidental access response message, thinks that access process successfully finishes at random, finish timing, the gained time is the turn-on time at random of special-purpose Preamble; At the B2 point, after terminal successfully receives competition solution message, thinks that access process successfully finishes at random, finish timing, the gained time is the turn-on time at random based on competition.

1002, in above-mentioned terminal in random access procedure after used time, item is measured in statistics the above-mentioned access at random of used time that comprises above-mentioned terminal in random access procedure reported eNB, optimize a terminal and insert at random to indicate this eNB to measure according to the access at random of above-mentioned terminal used time in random access procedure.

Wherein, when above-mentioned terminal reports above-mentioned eNB with the above-mentioned measurement of access at random item, can adopt but be not limited to following dual mode, above-mentioned dual mode is specially: first kind, by radio resource control information above-mentioned the access at random measured item and reported above-mentioned eNB; Second kind, the above-mentioned measurement item that inserts at random that will be stored as the journal file form by user's face reports above-mentioned eNB.Wherein, by radio resource control RRC message the described measurement item that inserts is at random reported eNB, comprising: above-mentioned terminal receives RRC and connects reconfiguration message, and this RRC connects and comprises the measurement of the access at random item that need report in the reconfiguration message; Perhaps, described terminal connects to reshuffle to above-mentioned eNB transmission RRC finishes message, and this RRC connection is reshuffled to finish and comprised the measurement of the access at random item that reports in the message.

1003, the access at random of the terminal that reports of eNB receiving terminal used time in random access procedure is measured, when connecing at random of reporting of receiving terminal measured, can receive only the above-mentioned measurement item that inserts at random of a terminal to report, the above-mentioned access at random that also can receive a plurality of terminal to report in the residential quarter certain hour measured item.Measuring item with the above-mentioned access at random of a plurality of terminal to report in residential quarter of above-mentioned eNB reception in the embodiment of the invention is that example specifies.

1004, behind the above-mentioned measurement of the access at random item of a plurality of terminal to report in receiving an above-mentioned residential quarter certain hour, above-mentioned eNB averages calculating to the above-mentioned terminal that receives in the above-mentioned residential quarter certain hour once inserting the used time at random, and obtains to insert at random used average time.

1005, eNB judges that whether above-mentioned the access at random surpass the default used time threshold that inserts at random used average time, and the above-mentioned default used time threshold of access at random is an empirical value, can arrange according to actual conditions; If above-mentioned insert at random surpass used average time default access at random used at ordinary times between thresholding, then execution in step 1006, otherwise execution in step 1007.

1006, when judging, eNB surpasses above-mentioned random access procedure used average time the default used time threshold of random access procedure, show that terminal completes successfully insert at random chronic, terminal will constantly apply for inserting at random in the above-mentioned time so, inserts success at random up to terminal.In order to shorten the time of once inserting at random, will compete the solution timer clock and turn down; Perhaps the rollback timer clock is turned down; Perhaps increase the physics random access channel resource.

1007, eNB does not need the rollback timer clock turned down or compete to solve timer clock and turn down; Perhaps increase the physics random access channel resource.

Wherein, measure terminal to be inserted according to the access at random of used time of terminal rollback in random access procedure and be optimized in the processing procedure, basic identical to step 1006 with the step 1001 in above-described embodiment, be the above-mentioned parameter of insert measuring at random be terminal in random access procedure the used time of rollback, this inserts at random measures an A that can pass through at Figure 11, two measurement points of B, satisfying when inserting the condition of rollback number of times at random time of the bckoff parameter that adds up and getting; And when execution in step 1005, insert rollback used average time at random according to what calculate, judge above-mentionedly insert whether surpass rollback used average time the default used time threshold of the rollback of access at random at random, if above-mentioned the access at random surpasses rollback used average time the default used time threshold of the rollback of access at random, then execution in step 1006, otherwise execution in step 1007.

Wherein, when measuring the optimization process that terminal is inserted according to inserting at random of the number of times of terminal rollback in random access procedure, step 1001 in step and above-described embodiment is basic identical to step 1006, it is the number of times of the above-mentioned parameter of insert measuring at random the rollback that is terminal in random access procedure, concrete measurement point is referring to the A point of Figure 11, B point; At the A point, if in the accidental access response time window, do not receive and insert corresponding message (RAR, Random Access Response) at random; Perhaps, do not comprise the sign of the Preambl e that UE sent just now in the accidental access response message that receives, then rollback (backoff) number of times adds 1; At the B point, if competition solves timer expiry, perhaps competition solves in the message and does not include the message content that UE sends in message 3, and then backoff number adds 1.And when execution in step 1005, according to the average rollback number of times that calculates, judge whether above-mentioned average rollback number of times surpasses default rollback number of times thresholding, if above-mentioned average rollback number of times surpasses default rollback number of times thresholding, then execution in step 1006, otherwise execution in step 1007.

Wherein, in step 1003, when if item is measured in the above-mentioned access at random of a terminal to report of eNB reception, in step 1004, then do not need to calculate the above-mentioned mean value that once inserts the number of times that time that used time or rollback insert at random or rollback insert at random at random, the above-mentioned used time threshold that inserts at random that inserts used time and preliminary election setting at random that eNB will receive compares, just can judge and above-mentionedly insert the used time at random and whether surpass the default used time threshold of access at random, if above-mentioned receive insert the used time at random when having surpassed the used time threshold of default access at random, execution in step 1006 just can realize the optimization process that terminal inserts at random; Otherwise execution in step 1007; Perhaps

The above-mentioned used time threshold of the rollback of access at random that inserts the used time of rollback at random and preset that eNB will receive compares, just can judge and above-mentionedly insert the used time of rollback at random and whether surpass the default used time threshold of rollback that inserts at random, if above-mentionedly insert the used time of rollback at random when having surpassed the used time threshold of default access at random rollback, execution in step 1006 just can realize the optimization process that terminal inserts at random; Otherwise execution in step 1007; Perhaps

The above-mentioned rollback number of times that inserts at random that eNB will receive compares with the rollback number of times thresholding of presetting, just can judge whether the above-mentioned rollback number of times that inserts at random surpasses default rollback number of times thresholding, if it is above-mentioned when inserting the rollback number of times at random and having surpassed default rollback number of times thresholding, execution in step 106 just can realize the optimization process that terminal inserts at random, otherwise execution in step 1007.

Receiving element 71 is used for access at random that receiving terminal reports to be measured, and wherein above-mentioned the access at random measured the combination that item comprises in any or the following parameter in the following parameter arbitrarily: used time in the random access procedure, at random insert the rollback number of times, insert the used time of rollback at random.Above-mentioned to insert the used time at random be terminal in random access procedure used time wherein; The number of times of above-mentioned to insert the rollback number of times at random be terminal in random access procedure rollback; The above-mentioned rollback time is terminal in random access procedure the used time of rollback.Above-mentioned receiving element 71 can receive only the above-mentioned measurement item that inserts at random of a terminal to report when the above-mentioned access at random of reception measurement item, item is measured in the above-mentioned access at random that also can receive the interior a plurality of terminal to report of a residential quarter certain hour.

After item is measured in the access at random that receives above-mentioned terminal transmission, the network side apparatus that above-mentioned optimization terminal inserts is analyzed the above-mentioned access at random that receives by change unit 72 and is measured item, and determines the influence of the load of Random Access Channel according to above-mentioned analysis result; After having analyzed above-mentioned influence of insert measuring at random to Random Access Channel, by above-mentioned change unit 72, the configuration parameter that terminal inserts at random to be changed, above-mentioned configuration parameter is generally terminal rollback control parameter configuration when inserting at random.

When receive above-mentioned insert to measure at random for terminal in random access procedure during used time, above-mentioned computing module 721 is used for above-mentionedly inserting the used time at random and averaging calculating what receive in the residential quarter certain hour, obtains the described used average time of inserting at random; When obtain described insert used average time at random after, above-mentioned change unit 72 by judge module 722 judge described computing module 721 calculate obtain above-mentioned insert at random whether surpass used average time preset insert used time threshold at random; Judge above-mentioned the access at random when above-mentioned judge module 722 and surpassed used average time defaultly when inserting used time threshold at random that above-mentioned change module 723 is used for also solving that timer clock is turned down or the rollback timer clock turned down or increase random access channel resource; Perhaps

When above-mentioned insert the measurement at random when inserting used time of rollback at random for terminal in a random access procedure that receives, above-mentioned computing module 721 is used for above-mentionedly inserting at random that to measure be terminal when random access procedure inserts used time of rollback at random when what receive; The used time of rollback of inserting at random that receives in the residential quarter certain hour is averaged calculating, acquisition insert rollback used average time at random; When obtaining to insert rollback at random after used average time, above-mentioned change unit 72 by above-mentioned judge module 722 judge above-mentioned computing module 721 calculate obtain above-mentioned insert at random rollback whether surpassed used average time preset insert the used time threshold of rollback at random; Judge the above-mentioned rollback that inserts at random when above-mentioned judge module 722 and surpassed used average time defaultly when inserting the used time threshold of rollback at random that above-mentioned change module 723 is used for also solving that timer clock is turned down or the rollback timer clock turned down or increase random access channel resource; Perhaps

When receive above-mentioned insert to measure at random for terminal in random access procedure during the rollback number of times, above-mentioned computing module 721 is used for the rollback of the access at random number of times that receives in the certain hour in the residential quarter is averaged calculating, obtains the average rollback number of times that inserts at random; After obtaining the average rollback number of times that inserts at random, above-mentioned change unit 72 judges that by above-mentioned judge module 722 above-mentioned computing module 721 calculates the average rollback number of times that obtains and whether surpassed default rollback number of times thresholding; When above-mentioned judge module 722 judged that above-mentioned average rollback number of times has surpassed default rollback number of times thresholding, above-mentioned change module 723 was used for also solving that timer clock is turned down or the rollback timer clock turned down or increase manage random access channel resource.

Terminal inserts at random by above-mentioned statistic unit 31 statistics and measures item; Wherein above-mentionedly insert to measure the combination that item comprises in any or the following parameter in the following parameter arbitrarily at random: used time in the random access procedure, at random insert the rollback number of times, insert the used time of rollback at random.Above-mentioned to insert the used time at random be terminal in random access procedure used time wherein, the number of times of above-mentioned to insert the rollback number of times at random be terminal in random access procedure rollback, the above-mentioned rollback time is terminal in random access procedure the used time of rollback.

After having added up above-mentioned insert to measure at random, institute's terminal of telling is also measured item and is reported eNB by above-mentioned above-mentioned the access at random that reports that unit 32 will add up, measures an item optimization terminal and inserts at random according to above-mentioned the access at random to indicate this eNB.Wherein, when above-mentioned terminal reports above-mentioned eNB with the above-mentioned measurement of access at random item, can adopt but be not limited to following dual mode, above-mentioned dual mode is specially: first kind, by radio resource control information above-mentioned the access at random measured item and reported above-mentioned eNB; Second kind, the above-mentioned measurement item that inserts at random that will be stored as the journal file form by user's face reports above-mentioned eNB.Wherein, by radio resource control RRC message the above-mentioned measurement item that inserts is at random reported eNB, comprising: above-mentioned terminal receives RRC and connects reconfiguration message, and this RRC connects and comprises the measurement of the access at random item that need report in the reconfiguration message; Perhaps, above-mentioned terminal connects to reshuffle to above-mentioned eNB transmission RRC finishes message, and this RRC connection is reshuffled to finish and comprised the measurement of the access at random item that reports in the message.

In the embodiment of the invention, once insert all time at random by sense terminals, perhaps terminal resends the number of times that inserts request at random in a random access procedure; Terminal resends the used time of request of inserting at random in a random access procedure; Be optimized inserting at random.When eNB detects time that terminal once inserts at random when surpassing default time threshold, know that the duty ratio of Random Access Channel was bigger when network was busy, and from making the collision rate that inserts at random than higher; When eNB detects time that terminal once inserts at random when surpassing default time threshold, to compete the solution timer clock turns down, perhaps the rollback timer clock is turned down, make the time ratio in the Random Access Channel transmission that inserts at random shorter, accelerated the processing speed that inserts at random, with long the comparing of inserting at random service time, guaranteed the ability that the Random Access Channel processing inserts at random, reduced the collision rate that inserts at random; When eNB detects time that terminal once inserts at random when surpassing default time threshold, after increasing the resource of Physical Random Access Channel, once at random on the turn-on time of the long basis, guaranteed the abundance of channel resource, avoid many to insert request at random because of the random access channel resource deficiency, and compete the situation of same Random Access Channel, reduce the collision rate that inserts at random to a certain extent, and then improved the success rate that inserts at random.

By a parameter or combination realize the optimization that inserts at random arbitrarily in insert measuring at random; all belong to the scope of protection of the invention, will be no longer in the embodiment of the invention to by insert at random measure in arbitrarily the combination of a parameter realize the method for the optimization that inserts is at random carried out concrete description.

Through the above description of the embodiments, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential common hardware, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium that can read, floppy disk as computer, hard disk or CD etc., comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.

The above only is the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.

Claims

1. optimize the method that terminal inserts at random for one kind, it is characterized in that, comprising:

Item is measured in the access at random that receiving terminal reports;

When the described parameter of insert measuring at random during for access attempts number of times or the accidental access response frequency of failure at random, the described number of times of access attempts at random that receives in the residential quarter certain hour or the accidental access response frequency of failure averaged calculate the average access attempts number of times of acquisition or the average response frequency of failure;

If described average access attempts number of times or the average response frequency of failure surpass default number of times thresholding, and the Random Access Channel load increases the initial expectation received power of described communicty preambel sign indicating number when low.

2. the method that inserts at random of optimization terminal according to claim 1 is characterized in that described method also comprises:

When the described parameter of insert measuring at random when access contention solves the frequency of failure at random, the described access contention at random that receives in the residential quarter certain hour is solved the frequency of failure averages calculating, obtain the average competition solution frequency of failure;

If the described average competition solution frequency of failure surpasses default competition and solves frequency of failure thresholding, and when the Random Access Channel load is higher, increases described residential quarter and be used for the random access channel resource of access at random.

3. the method that inserts at random of optimization terminal according to claim 1 is characterized in that described method also comprises:

When the described parameter of insert measuring at random is: link load or when inserting the data volume that sends at random, according to described link load or the described data volume that sends that inserts at random, adjust the lead code packet configuration in the residential quarter, and/or adjust the message size thresholding that lead code is selected.

4. the method that inserts at random of optimization terminal according to claim 1 is characterized in that described method also comprises:

When the described parameter of insert measuring at random is: when inserting the used time at random or when inserting used time of rollback at random,

Insert the used time at random or insert the used time of rollback at random and average calculating what receive in the residential quarter certain hour, obtain to insert used average time at random or insert rollback used average time at random;

If described insert used average time at random or insert at random rollback used average time surpass default time threshold, will compete then that the solution timer clock is turned down or the rollback timer clock turned down or increase the physics random access channel resource.

5. the method that inserts at random of optimization terminal according to claim 1 is characterized in that described method also comprises:

When the described parameter of insert measuring at random when inserting the rollback number of times at random, the described rollback number of times that inserts at random that receives in the residential quarter certain hour is averaged calculating, obtain average rollback number of times;

If described average rollback number of times surpasses default rollback number of times thresholding, will compete then that the solution timer clock is turned down or the rollback timer clock turned down or increase the physics random access channel resource.

6. the method that inserts at random of optimization terminal according to claim 1, it is characterized in that, described method also comprises: when the described parameter that inserts the measurement item at random reaches maximum transmit power limit for inserting at random, the described terminal that reaches maximum transmit power limit that inserts at random that receives in the residential quarter certain hour is added up, obtain to reach the terminal quantity of maximum transmit power limit;

If the described terminal quantity that reaches maximum transmit power limit surpasses default quantity thresholding, and when the Random Access Channel load is higher, increases the initial expectation received power of described communicty preambel sign indicating number or increase the physics random access channel resource or the thresholding of increase lead code maximum transmission power.

7. optimize the method that terminal inserts at random for one kind, it is characterized in that, comprising:

The terminal statistics inserts at random measures item;

The described measurement item that inserts at random of statistics is reported evolution base station eNB, when the described parameter of insert measuring at random during for access attempts number of times or the accidental access response frequency of failure at random, in order to indicate described eNB that the described number of times of access attempts at random or the accidental access response frequency of failure that receives in the residential quarter certain hour averaged the calculating average access attempts number of times of acquisition or the average response frequency of failure, if described average access attempts number of times or the average response frequency of failure surpass default number of times thresholding, and when the Random Access Channel load is low, increase the initial expectation received power of described communicty preambel sign indicating number.

8. the method that inserts at random according to the described optimization terminal of described claim 7 is characterized in that, the described described measurement of the access at random item that will add up reports described eNB and comprises:

By radio resource control RRC message the described measurement item that inserts is at random reported described eNB; Perhaps

The described measurement item that inserts at random that will be stored as the journal file form by user's face reports described eNB.

9. the method that inserts at random according to the described optimization terminal of described claim 8, described by radio resource control RRC message with described insert at random to measure report eNB, comprising:

Described terminal receives RRC and connects reconfiguration message, and described RRC connects and comprises the measurement of the access at random item that need report in the reconfiguration message;

Described terminal connects to reshuffle to described eNB transmission RRC finishes message, and described RRC connection is reshuffled to finish and comprised the measurement of the access at random item that reports in the message.

10. the method that inserts at random of optimization terminal according to claim 7 is characterized in that, the described access at random measured the combination that item also comprises in any or the following parameter in the following parameter arbitrarily:

At random access contention solve the frequency of failure, link load, at random insert the data volume that sends, at random insert the used time, at random insert the rollback number of times, at random insert used time of rollback, high-rise number of times of initiating again to insert at random, insert and reach maximum transmit power limit at random.

11. the method that optimization terminal according to claim 10 inserts at random is characterized in that,

The described number of times of access attempts at random is: the number of attempt that terminal inserts in once successful random access procedure at random;

The described accidental access response frequency of failure is: terminal is the accidental access response frequency of failure in once successful random access procedure;

Described access contention at random solves the frequency of failure: terminal is competed in once successful random access procedure and is solved the frequency of failure;

Described link load is: the downlink loss that the end side physical layer is calculated;

The described data volume that sends that inserts at random is: terminal inserts the 3rd the message data amount that sends at random in the process that once inserts at random;

Describedly insert the used time at random and be: terminal is the used time in random access procedure;

The described rollback number of times that inserts at random is: the number of times of terminal rollback in random access procedure;

Describedly insert the used time of rollback at random and be: terminal is the used time of rollback in random access procedure;

The number of times that described high level initiates to insert at random again is: the terminal random access procedure number of times of access at random of initiating again on the middle and senior level;

Described access at random reaches maximum transmit power limit and is: terminal reaches maximum transmit power limit at a random access procedure.

12. the method that optimization terminal according to claim 10 inserts at random is characterized in that,

The described number of times of access attempts at random is: the transmission number of attempt of terminal lead code in once successful random access procedure, perhaps, the soaring number of times of terminal initial received power of lead code in once successful random access procedure;

The described accidental access response frequency of failure is: the number of times sum that does not comprise the lead code sign that described terminal sends in terminal is not received accidental access response message in once successful random access procedure number of times and the described accidental access response message that receives;

The described solution of the access contention at random frequency of failure is: terminal is competed in once successful random access procedure and is solved the timer expiry number of times and compete the number of times sum that solves the resource request information that does not include the terminal transmission in the message;

The described data that send that insert at random are: the 3rd data volume that message comprises that terminal sends in the process that once inserts at random, perhaps, the size of terminal the 3rd message in the process that once inserts at random;

The number of times that described high level initiates to insert at random again is: in the described terminal random access procedure, it is high-rise when access reaches maximum reattempt times at random, again initiate the number of times of access at random, perhaps, described terminal random access procedure access failure at random on the middle and senior level number of times.

13. optimize the network side apparatus that terminal inserts at random for one kind, it is characterized in that, comprising:

Receiving element is used for the measurement of the access at random item that receiving terminal reports;

The change unit is used for measuring a configuration parameter that change inserts at random according to described the access at random;

Described change unit comprises: computing module, judge module and change module;

When the described parameter of insert measuring at random be at random access attempts number of times or accidental access response fail number of times the time, described computing module is used for the number of times of the described number of times of access attempts at random that receives in the residential quarter certain hour or response failure is averaged calculating, described judge module is used for judging whether average access attempts number of times or the average response frequency of failure that described computing module calculates surpass default number of times thresholding, described change module is used for increasing the initial expectation received power of the lead code of described residential quarter when described judge module judges that described average access attempts number of times or the average response frequency of failure surpass default number of times thresholding.

14. the network side apparatus that optimization terminal according to claim 13 inserts at random is characterized in that, describedly insert to measure the combination that item comprises in any or the following parameter in the following parameter arbitrarily at random:

At random access attempts number of times, the accidental access response frequency of failure, at random access contention solve timer expiry number of times, link load, at random insert the data volume that sends, at random insert the used time, at random insert the rollback number of times, at random insert used time of rollback, high-rise number of times of initiating again to insert at random, insert and reach maximum transmit power limit at random.

15. the network side apparatus that optimization terminal according to claim 13 inserts at random is characterized in that, described computing module, judge module and change module also are used for:

When the described parameter of insert measuring at random during for the access contention solution frequency of failure at random, described computing module is used for that the described access contention at random that receives in the residential quarter certain hour is solved the frequency of failure and averages calculating, and described judge module is used for judging whether the average competition solution frequency of failure that described computing module calculates solves frequency of failure thresholding above default competition; Described change module is used for judging that when described judge module described average competition solves the frequency of failure and solves frequency of failure thresholding above default competition, and when the Random Access Channel load is higher, increases described residential quarter and be used for the Physical Random Access Channel resource of access at random; Perhaps

When the described parameter of insert measuring at random is link load or when inserting the data volume that sends at random, described change module is used for according to the described described link load that receives or inserts the data volume that sends at random, adjust the lead code packet configuration in the residential quarter, and/or adjust the message size thresholding that lead code is selected; Perhaps

When the described parameter of insert measuring at random when inserting the used time at random or when inserting used time of rollback at random, described computing module is used for described when inserting the used time at random or insert the used time of rollback at random and average calculating to what receive in the residential quarter certain hour, described judge module is used for judging that described computing module calculates inserts used average time at random or insert rollback at random whether surpass the time threshold of presetting used average time, described change module is used for judging when described judge module and describedly inserts used average time at random or insert rollback at random when surpassing default time threshold used average time, will compete the solution timer clock and turn down, perhaps the rollback timer clock is turned down, perhaps increase random access channel resource; Perhaps

When the described parameter of insert measuring at random when inserting the rollback number of times at random, described computing module is used for the described rollback number of times that inserts at random that receives in the residential quarter certain hour is averaged calculating, described judge module is used for judging whether the average rollback number of times that described computing module calculates surpasses default rollback number of times thresholding, described change module is used for when described judge module judges that described average rollback number of times surpasses default rollback number of times thresholding, will compete the solution timer clock and turn down, perhaps the rollback timer clock is turned down, perhaps increase the physics random access channel resource; Perhaps

When the described parameter that inserts the measurement item at random reaches maximum transmit power limit for inserting at random, described computing module is used for the described terminal that reaches maximum transmit power limit that inserts at random that receives in the residential quarter certain hour is added up, whether described judge module surpasses default quantity thresholding for the quantity of judging the terminal that described computing module statistics obtains, described change module surpasses default quantity thresholding for the quantity of the terminal that obtains when described statistics, and when the Random Access Channel load is higher, increase the initial expectation received power of described communicty preambel sign indicating number, perhaps increase the physics random access channel resource, perhaps increase the thresholding of lead code maximum transmission power.

16. a terminal is characterized in that, comprising:

Statistic unit is used for the terminal statistics and inserts the measurement item at random;

Report the unit, the described measurement item that inserts at random that is used for adding up reports evolution base station eNB, when the described parameter of insert measuring at random during for access attempts number of times or the accidental access response frequency of failure at random, in order to indicate described eNB that the described number of times of access attempts at random or the accidental access response frequency of failure that receives in the residential quarter certain hour averaged the calculating average access attempts number of times of acquisition or the average response frequency of failure, if described average access attempts number of times or the average response frequency of failure surpass default number of times thresholding, and when the Random Access Channel load is low, increase the initial expectation received power of described communicty preambel sign indicating number.

17. terminal according to claim 16 is characterized in that,

The described unit that reports also is used for by radio resource control RRC message the described measurement item that inserts at random being reported described eNB; Perhaps

The described unit that reports also reports described eNB for the described measurement item that inserts at random that will be stored as the journal file form by user's face.

18. terminal according to claim 16 is characterized in that, describedly insert to measure the combination that item comprises in any or the following parameter in the following parameter arbitrarily at random: