CN103814620A

CN103814620A - Method and apparatus for adjusting random access parameters

Info

Publication number: CN103814620A
Application number: CN201380002438.7A
Authority: CN
Inventors: 王学亮
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-12-10
Filing date: 2013-12-10
Publication date: 2014-05-21
Anticipated expiration: 2033-12-10
Also published as: WO2015085495A1; CN103814620B

Abstract

Embodiments of the invention provide a method and apparatus for adjusting random access parameters. Statistics are done on issued situtation of a random access preamble confirmation message, the issued situation is compared with a preset threshold to determine whether the random access preamble transmitted by a user device is so much that a risk of channel congestion can be caused, and then the random access parameters are automatically adjusted. The user device transmits the random access preamble through optimized random access parameters, the channel congestion can be prevented and the success rate of the random access can be maintained. Further, the random access preamble is transmitted through the adjusted random access parameters, the uplink power load of a cell can be reduced, the impact of a random access procedure on the uplink data capacity and uplink data throughput is reduced, the network quality is therefore improved and the user experience is enhanced.

Description

Adjust the method and apparatus of random access parameter

Technical field

The embodiment of the present invention relates to communication technical field, relates in particular to a kind of method and apparatus of adjusting random access parameter.

Background technology

Subscriber equipment (UE, user equipment), before carrying out transfer of data with base station, needs initiating random access procedure.First subscriber equipment selects access slot, send random access guiding to base station by Random Access Channel, if subscriber equipment does not receive the acknowledge message of base station, subscriber equipment starts leading climbing flow process, improve the transmitting power of random access guiding and again send random access guiding, until subscriber equipment is received the acknowledge message from base station, representing that random access guiding sends successfully, subscriber equipment can send random access information to base station subsequently, completes random access procedure.

In random access procedure, subscriber equipment need to utilize random access parameter to carry out the transmission of random access guiding.Random access parameter can directly have influence on the quality of random access procedure, if do not consider network practical operation situation, only adopts pre-configured random access parameter to send random access guiding, can cause accessing at random success rate too low.

In prior art, propose the method for Automatic Optimal random access parameter,, according to the random access attempts number of times of user equipment to report random access parameter has been adjusted by base station equipment.In prior art, in the time carrying out random access parameter adjustment, have repeatedly random access attempts, current Random Access Channel has occurred congested, and the success rate of random access reduces.

Summary of the invention

The embodiment of the present invention provides a kind of method and apparatus of adjusting random access parameter, can prevent Random Access Channel to occur congested, avoids accessing at random success rate and reduces.

First aspect, the embodiment of the present invention provides a kind of method of adjusting random access parameter, and the method comprises,

Base station equipment receives the random access guiding that at least one subscriber equipment sends according to described random access parameter;

Described base station equipment receives after described random access guiding, sends acknowledge message to described at least one subscriber equipment, and described acknowledge message represents that described base station equipment successfully receives described random access guiding;

Described base station equipment records the number of times of described acknowledge message;

Described base station equipment is made comparisons the number of times of described acknowledge message and the first thresholding, and described the first thresholding is used to indicate channel congestion state;

When the number of times of described acknowledge message is more than or equal to described the first thresholding, described base station equipment is adjusted described random access parameter, obtains the random access parameter after adjusting;

The random access parameter after described adjustment is sent to described at least one subscriber equipment by described base station equipment.

In the possible implementation of the first of first aspect, described method also comprises, the uplink receiving total bandwidth power (RTWP, received total wideband power) of described base station equipment monitoring community, and described up RTWP and default RTWP threshold value are made comparisons;

The described number of times when described acknowledge message is more than or equal to described the first thresholding, and described base station equipment is adjusted random access parameter and specifically comprised,

Described up RTWP is more than or equal to described the first thresholding higher than the number of times of described RTWP predetermined threshold value and described acknowledge message, and described base station equipment is adjusted described random access parameter.

In the possible implementation of the second of first aspect, described method also comprises,

Described base station equipment receives the random access guiding that described at least one subscriber equipment sends according to the random access parameter after described adjustment;

Described base station equipment receives described at least one subscriber equipment according to after the random access guiding of the random access parameter transmission after described adjustment, send new acknowledge message to described at least one subscriber equipment, described new acknowledge message represents that described base station equipment successfully receives the random access guiding that described at least one subscriber equipment sends according to the random access parameter after described adjustment;

Described base station equipment records the number of times of described new acknowledge message;

Described base station equipment is made comparisons the number of times of described new acknowledge message and the second thresholding, described the second thresholding for the random access guiding number of times that judges described at least one subscriber equipment and send according to the random access parameter after described adjustment whether in normal scope;

The number of times of described new acknowledge message is less than or equal to described the second thresholding, and described base station equipment issues described random access parameter to described at least one subscriber equipment.

In conjunction with the possible implementation of the second of first aspect, the third possible implementation of first aspect, the number of times of described new acknowledge message is less than or equal to described the second thresholding, and described base station equipment issues described random access parameter to described at least one subscriber equipment and comprises

Described base station equipment keeps issuing the random access parameter after described adjustment to described at least one subscriber equipment in Preset Time, after described Preset Time is overtime, issues described random access parameter to described at least one subscriber equipment.

In conjunction with the first of first aspect or first aspect to any one possible implementation in the third, the 4th kind of possible implementation of first aspect, described base station equipment receives at least one subscriber equipment and comprises according to the random access guiding of described random access parameter transmission

Described base station equipment receives described at least one subscriber equipment by Random Access Channel RACH or strengthens the described random access guiding that Random Access Channel E-RACH sends.

In conjunction with the first of first aspect or first aspect to any one possible implementation in the third, the 5th kind of possible implementation of first aspect, described base station equipment records the summation of described base station equipment to the number of times of the described acknowledge message that all subscriber equipmenies send in the community of described base station equipment.

Second aspect, the embodiment of the present invention provides a kind of base station equipment, and for adjusting random access parameter, described base station equipment comprises:

Receiving element, the random access guiding sending according to random access parameter for receiving at least one subscriber equipment;

The first transmitting element, for receiving after described random access guiding at described receiving element, sends acknowledge message to described at least one subscriber equipment, and described acknowledge message represents that described base station equipment successfully receives described random access guiding;

Record cell, for recording the number of times of described the first transmitting element to the acknowledge message of described at least one subscriber equipment transmission;

The first comparing unit, for the number of times of described acknowledge message and the first thresholding are made comparisons, described the first thresholding is used to indicate channel congestion state;

Described adjustment unit, in the time that the number of times of described acknowledge message is more than or equal to described the first thresholding, adjusts described random access parameter, obtains the random access parameter after adjusting;

The second transmitting element, for being sent to the random access parameter after described adjustment described at least one subscriber equipment.

In the possible implementation of the first of second aspect, described base station equipment also comprises, monitoring means for monitoring the uplink receiving total bandwidth power RTWP of community, and sends to the second comparing unit by the described RTWP monitoring;

The second comparing unit, for receiving described up RTWP from described monitoring means, and makes comparisons with default RTWP threshold value, when described up RTWP is during higher than described RTWP predetermined threshold value, sends the second Indication message to described adjustment unit.

Described adjustment unit is further used for, and when described up RTWP is more than or equal to described the first thresholding higher than the number of times of described RTWP predetermined threshold value and described acknowledge message, adjusts described random access parameter.

In the possible implementation of the second of second aspect, described receiving element is further used for, and receives the random access guiding that described at least one subscriber equipment sends according to the random access parameter after described adjustment;

Described the first transmitting element is further used for, for receiving described at least one subscriber equipment at described receiving element according to after the random access guiding of the random access parameter transmission after described adjustment, send new acknowledge message to described at least one subscriber equipment, described new acknowledge message represents that described base station equipment successfully receives the random access guiding that described at least one subscriber equipment sends according to the random access parameter after described adjustment;

Described record cell is further used for recording the number of times of described new acknowledge message;

Described the first comparing unit is further used for, the number of times of described new acknowledge message and the second thresholding are made comparisons, described the second thresholding for the random access guiding number of times that judges described at least one subscriber equipment and send according to the random access parameter after described adjustment whether in normal scope;

Described transmitting element is further used for, and when the number of times of described new acknowledge message is less than or equal to described the second thresholding, issues described random access parameter to described at least one subscriber equipment.

Described the second transmitting element is further used for, and issues described random access parameter to described at least one subscriber equipment.

In conjunction with the possible implementation of the second of second aspect, the third possible implementation of second aspect, described the second transmitting element is further used for, in Preset Time, keep issuing the random access parameter after described adjustment to described at least one subscriber equipment, after described Preset Time is overtime, issue described random access parameter to described at least one subscriber equipment.

In conjunction with the first of second aspect or second aspect to any one possible implementation in the third, the 4th kind of possible implementation of first aspect, described receiving element is further used for, and receives described at least one subscriber equipment by Random Access Channel RACH or strengthens the described random access guiding that Random Access Channel E-RACH sends.

In conjunction with the first of second aspect or second aspect to any one possible implementation in the third, the 5th kind of possible implementation of first aspect, described record cell is further used for, and records the summation of described base station equipment to the number of times of the described acknowledge message that all subscriber equipmenies send in the community of described base station equipment.

The third aspect, the invention process provides a kind of subscriber equipment, comprises,

Transmitting element, for sending random access guiding according to random access parameter to base station equipment;

Receiving element, the random access guiding acknowledge message sending for receiving described base station equipment, described acknowledge message represents that described base station equipment successfully receives described random access guiding; And for receiving the random access parameter after the adjustment that described base station equipment issues, random access parameter after described adjustment is that the number of times of the acknowledge message of the random access guiding that sent at least one subscriber equipment in the community of described base station equipment of described base station equipment record by described base station equipment is greater than or equal to after the first thresholding, described random access parameter adjustment is obtained and sends to described at least one subscriber equipment, and described the first thresholding is used to indicate channel congestion state;

Described transmitting element also for, utilize the random access parameter after described adjustment to send new random access guiding to described base station equipment.

In the possible implementation of the first of the third aspect, random access parameter after the adjustment that described base station equipment issues is to be greater than or equal to the first thresholding by described base station equipment at the number of times of the acknowledge message of described random access guiding, and the uplink receiving total bandwidth power RTWP that described base station equipment monitors is during higher than RTWP predetermined threshold value, described random access parameter adjustment is obtained and sends to described at least one subscriber equipment.

In conjunction with the possible implementation of the first of the third aspect or the third aspect, in the possible implementation of the second of the third aspect, described transmitting element, for sending random access guiding according to random access parameter to base station equipment, comprising:

Described transmitting element sends described random access guiding by Random Access Channel RACH or enhancing Random Access Channel E-RACH.

Adopt the disclosed method and apparatus of the embodiment of the present invention, the number of times of the acknowledge message of the random access guiding that statistics issues to subscriber equipment in community is also made comparisons with default threshold value, judge whether the Random Access Channel in current area exists congested risk, if there is the risk of channel congestion, automatically adjust random access parameter.Guaranteed before Random Access Channel appearance is congested, subscriber equipment just can utilize the random access parameter after optimization to send random access guiding, can prevent to occur channel congestion, subscriber equipment, without because channel congestion carries out random access attempts repeatedly, has maintained relatively constant random access success rate.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is a kind of application scenarios schematic diagram of the embodiment of the present invention;

A kind of flow chart of adjusting accidental access method that Fig. 2 provides for the embodiment of the present invention;

The another kind that Fig. 3 provides for the embodiment of the present invention is adjusted the flow chart of accidental access method;

A kind of base station equipment schematic diagram that Fig. 4 provides for the embodiment of the present invention;

A kind of base station equipment schematic diagram that Fig. 5 provides for the embodiment of the present invention;

A kind of subscriber equipment schematic diagram that Fig. 6 provides for the embodiment of the present invention.

Embodiment

For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described in further detail.

Various technology described herein can be used for plurality of communication systems, for example current 2G, 3G communication system and next generation communication system, for example global system for mobile communications (GSM, global system for mobile communication), code division multiple access (CDMA, code division multiple access) system, time division multiple access (TDMA, time division multiple access) system, Wideband Code Division Multiple Access (WCDMA) (WCDMA, wideband code division multiple access) system, Long Term Evolution (LTE, long term evolution) system and follow-up evolution system etc.

In the communication system of the embodiment of the present invention, can comprise base station equipment and subscriber equipment.Wherein, described base station equipment can be for communicating with described subscriber equipment.

Fig. 1 is a kind of base station equipment operative scenario schematic diagram.In Fig. 1, described base station equipment comprises a base station controller, and described base station controller can be managed at least one base station, and base station 1, base station 2 and base station 3, exist data interaction between each base station and base station controller as shown in Figure 1.At least one community can be managed in each base station, as managed respectively Yi Ge community in 1-base station, base station 3, i.e. community 1, community 2 and community 3.Community 1 comprises subscriber equipment 1, subscriber equipment 2 and subscriber equipment 3, when a certain subscriber equipment is wanted from the idle condition connection status of moving into, or being in the different conditions such as cell forward access state, cell paging state or Acceditation Area paging state issues while sending uplink information, can connect by random access procedure and base station 1, obtain corresponding communication service.The random access procedure of each subscriber equipment and base station 1 is independently to carry out, and the random access request that multiple subscriber equipmenies send can be processed in base station simultaneously.In the time that a certain subscriber equipment moves to other communities, can again connect with other base stations, to guarantee service quality.

In different wireless communication systems, described base station equipment can comprise and has different parts, for example, in GSM, CDMA or WCDMA system, described base station equipment can comprise base station and base station controller, described base station can refer in Access Network aloft on interface by the equipment of one or more sectors and described communications of user equipment, can be for example the base transceiver station (BTS of GSM or cdma system, base transceiver station), or can be also the Node B (Node B) in WCDMA system; Base station controller can be the base station controller (BSC, base station controller) in GSM or cdma system, can be also the radio network controller (RNC, radio network controller) in WCDMA system.Described base station can be connected by wired or wireless mode with described base station controller, and described base station is controlled by described base station controller management.Described subscriber equipment can be the subscriber equipment that carries out transfer of data with wireless mode and base station, and for example mobile phone, possesses the personal computer of radio communication function etc.In LTE system and the follow-up further evolution system of LTE, described base station equipment can comprise evolved Node B (e-Node B, evolved Node B), described e-Node B can have the partial function that base station is controlled, for example, comprise the scheduled transmission of paging information; The scheduled transmission of broadcast message; And arrange and provide the measurement etc. of e-Node B.

Along with quantity and the quality of subscriber equipment to transfer of data business need is more and more higher, the random access request that in community, subscriber equipment is initiated to base station equipment within the unit interval is more and more, and the data transmission capacity of community Random Access Channel is limited, easily there is channel congestion, cause random access guiding to send unsuccessful, subscriber equipment and then the random access attempts repeatedly carrying out, cause accessing at random success rate and reduce, and further caused the deterioration of channel letter energy simultaneously.

In embodiments of the present invention, base station equipment is according to the number of times that records the acknowledge message of the random access guiding of subscriber equipment transmission in Dui community, obtain the loading condition in the Random Access Channel of community, and then the random access parameter that subscriber equipment is used is rationally adjusted.

Take WCDMA system as example, subscriber equipment can send random access guiding to Node B, after Node B receives, send acknowledge message to subscriber equipment, represent that this random access guiding sends successfully, Node B records the number of times of described acknowledge message, and report to RNC by the cycle, after the number of times of described acknowledge message being processed by RNC, make comparisons with default thresholding, exceed default thresholding, adjust random access parameter.

Take LTE system as example, subscriber equipment can send random access guiding to e-Node B, after e-Node B receives, send acknowledge message to subscriber equipment, represent that this random access guiding sends successfully, e-Node B records the number of times of described acknowledge message, and makes comparisons with default thresholding, exceed default thresholding, adjust random access parameter.

Described subscriber equipment can utilize the random access parameter after described adjustment to send random access guiding to base station equipment.Main random access parameter comprises, the soaring number of times (PreambleRetransMax) of maximum of the initial power constant (Constantvalue) of random access guiding, the power ramp step-length (PowerRampStep) of random access guiding, random access guiding etc.Subscriber equipment sends random access guiding with Initial Trans, and described Initial Trans is directly proportional to described initial power constant; If Initial Trans fails to be detected by the network equipment, leading transmission unsuccessfully is described, the network equipment can not send and confirm indication to subscriber equipment, subscriber equipment need to start corresponding leading climbing cycle period, by power ramp step-length certain increased power, through again sending after a period of time, until power is more than or equal to the value that base station equipment can detect and is confirmed leading transmission successfully.Exceed the soaring number of times of described maximum if subscriber equipment retransmits leading number of times, do not obtain yet base station equipment and confirm, send unsuccessfully.

Adjustment random access parameter described in the embodiment of the present invention refers to the value of adjusting random random access parameter, the initial value based on random access parameter is adjusted, random access parameter after being adjusted, the initial value of described random access parameter can be pre-configured in base station equipment.

The embodiment of the present invention provides a kind of method of adjusting random access parameter, and referring to Fig. 2, the method comprises:

101: base station equipment receives the random access guiding that subscriber equipment sends according to random access parameter.

Described subscriber equipment can be any one or any number of subscriber equipmenies in the community of described base station equipment.

In the time that subscriber equipment need to carry out transmitting uplink data, can pass through Random Access Channel (RACH, random access channel) and send random access guiding.

Further, if both there is RACH in community, also exist and strengthen Random Access Channel (E-RACH, enhanced-random access channel), subscriber equipment also can use E-RACH to send random access guiding to base station.

102: described base station equipment receives after described random access guiding, send acknowledge message to described subscriber equipment, described acknowledge message represents that described base station equipment successfully receives described random access guiding.

103: base station equipment records the number of times of described acknowledge message.

Base station equipment can record the number of times of the acknowledge message that sends to described subscriber equipment, and the number of times of described acknowledge message can reflect the loading condition on RACH, and load too high can cause occurring the risk of channel congestion; If random access request keeps increasing, RACH will there will be congested, the success rate of the random access of impact.

If subscriber equipment sends random access guiding by E-RACH, described subscriber equipment can be called E-RACH user.Described base station equipment can record the number of times for the acknowledge message of the upper random access guiding sending of E-RACH.The transmission situation of considering the confirmation number of times of the random access guiding of E-RACH in channel congestion judgement, the random access parameter of optimizing E-RACH user also can effectively reduce E-RACH load, promotes the success rate of the random access of E-RACH user.

Therefore, the channel congestion described in the embodiment of the present invention can comprise that RACH's is congested; Or E-RACH's is congested; Or RACH and E-RACH occur congested.

Described base station equipment can record by predetermined period the number of times of the acknowledge message issuing to subscriber equipment in this cycle, and records the number of times of the acknowledge message in multiple predetermined period.Described base station equipment can also be carried out filtering processing to the number of times of the acknowledge message recording in described multiple predetermined period, obtains the number of times of acknowledge message after treatment, and the number of times that the number of times of described acknowledge message after treatment can be used as described acknowledge message uses.Described filtering processing refers to that the number of times of the multiple acknowledge messages to record filters out too high and too low number of times.There is anomaly peak in the actual frequency of carrying out filtering processing and be as preventing the acknowledge message in special time, causes unnecessarily triggering the adjustment flow process of random access parameter.The time span of described predetermined period can arrange according to system requirements and actual network operation situation, and for example, if system can be carried larger load, the time span that predetermined period can arrange can be greater than the time span of the less load of system bearing; If when real network operation, the user in network is more, the time span of predetermined period can arrange shortlyer, if the user in network is less, the time span of predetermined period can arrange longlyer.Or base station equipment also can be carried out integrated condition and arrange the time span of this predetermined period.For example, be chosen as 1 second, to guarantee the precision of channel congestion judgement.In embodiments of the present invention, the time span of predetermined period is not limited.

The number of times of the acknowledge message that record is obtained is processed after filtering, can guarantee that the follow-up number of times according to described acknowledge message after treatment judges the accuracy of channel congestion state.Take the base station equipment that comprises base station and base station controller as example, described filtering processing can have two kinds of modes:

First kind of way is, by base station, the number of times of described acknowledge message is carried out to record, and the number of times of the acknowledge message that record is obtained reports base station controller, and base station controller carries out filtering processing to the number of times of described acknowledge message.For example, in WCDMA system, the number of times of acknowledge message described in Node B periodic report, is calculated the mean value of the number of times of N (N > 1, N is integer) acknowledge message that Node B reports by RNC.In order to reduce the impact on RNC chain of command, Node B can adopt longer report cycle, for example 10s～30s.For example, report cycle is 10s, and N is 5, and Node B reports the number of times of the acknowledge message that 1 described record obtains to RNC every 10s, RNC can be recorded to the number of times of 5 acknowledge messages that report, then the number of times using the average of the number of times of these 5 acknowledge messages as acknowledge message after treatment.

The second way is record and the filtering processing that is completed the number of times of acknowledge message by base station, then the number of times of acknowledge message after treatment is reported to base station controller.For example, in WCDMA system, recorded the number of times of described acknowledge message by Node B in predetermined period, the number of times of the acknowledge message then obtaining for record in M predetermined period does average value processing, described M>1, and M is integer.For example, described predetermined period is 10s, and M is 5, and Node B is the 10s being recorded to, 20s, and 30s, the number of times of the acknowledge message of 40s and 50s does average value processing, and the number of times of acknowledge message after treatment is reported to RNC.

Above-mentioned two kinds of statisticals are also applicable to the 2G/3G communication systems such as GSM, CDMA.Only comprising in base station LTE and follow-up evolution system, can complete above-mentioned record and process described acknowledge message number of times by e-Node B.

104: base station equipment is made comparisons the number of times of described acknowledge message and the first thresholding, described the first thresholding is used to indicate channel congestion state.

There are mapping relations in described the first thresholding and channel congestion state.Described channel congestion state can represent by many kinds of parameters, for example can represent by congested coefficient, suppose that complete congested 100%, the A of being of channel is congested coefficient (value of A is between 0 to 1),, corresponding to the congestion state of A*100%, can react with the first different thresholdings.In order to embody the prevention effect to channel congestion, for example A can be set to reflect the value of channel congestion state in critical point, the first corresponding thresholding can be determined according to the ability of RACH or E-RACH processing random access request, can not be particularly limited in the present embodiment for the concrete value of A.Therefore, corresponding to different channel congestion states, the first thresholding can be got different values, for example, as shown in table 1, and the number of times of supposing the acknowledge message of the complete congested correspondence of channel is 30 times per second.

The first thresholding	Congested coefficient	Congestion state
			15 times/per second	0.5	50%
9 times/per second	0.3	30%
			3 times/per second	0.1	10%

The mapping relations of table 1 the first thresholding and channel congestion state for example

It should be noted that, the value of described the first thresholding and the corresponding relation of described congested coefficient are only a kind of examples, in actual applications, mapping relations between value and the different congested coefficient of the first different thresholdings can be set, mapping relations between the value of the first different thresholdings and the parameter of the described channel congestion state of expression also can be set, and the embodiment of the present invention is not done any restriction at this.

Optionally, described the first thresholding also can reach community according to subscriber equipment random access request in same community and come at full capacity to determine, described community represents the upper limit of base station equipment processing random access request at full capacity, can embody the congestion state of described channel.The value of described the first thresholding is directly proportional to the ability that base station equipment is processed random access request.Suppose that community is N time (N>1, N is integer) at full capacity, the first thresholding=N-△, △ can dynamically adjust according to method implementation effect.For example, base station equipment is issued to 30 random access confirmation messages to subscriber equipment in 1 second and be considered as community at full capacity, described the first thresholding can be chosen for △ time by 30-, for example, can be 20 times to 25 times.Described the first thresholding can dynamically be adjusted according to network actual conditions by base station equipment, also can, in advance with reference to empirical value setting, specifically be not construed as limiting in the present embodiment.

When the number of times of described acknowledge message is more than or equal to described the first thresholding, illustrate in current area and need random access guiding number of times to be processed more, consider the ability to bear of channel capacity, there is channel congestion risk.Frequency and the quantity that can send by reducing random access guiding, alleviate channel pressure, avoids because occurring that channel congestion causes random access guiding to send unsuccessfully.

If the number of times of described acknowledge message is less than described the first thresholding, can think that the degree of current channel congestion is also within the tolerance range of described base station equipment, base station equipment can successfully receive random access guiding, not affected by channel congestion.

105: if the number of times of described acknowledge message is more than or equal to described the first thresholding, described base station equipment is adjusted random access parameter, obtains the random access parameter after adjusting, and the random access parameter after described adjustment is sent to described subscriber equipment.

If the number of times of described acknowledge message is more than or equal to described the first thresholding, the random access guiding that subscriber equipment is described sends too much, will cause negative effect to the channel transmission quality of community, can be by adjusting random access parameter, change access strategy, improve communication efficiency.

Optionally, if the number of times of described acknowledge message is less than described the first thresholding, described base station equipment is without random access parameter is adjusted.

Optionally, the random access parameter that can adjust comprises: in the soaring number of times of the maximum of the initial power constant of random access guiding, the power ramp step-length of random access guiding, random access guiding any two or three.

Optionally, the adjustment mode of described random access parameter can be: reduce described initial power constant and promote described power ramp step-length; Or reduce described initial power constant and increase the soaring number of times of described maximum; Or reduce described power ramp step-length and increase the soaring number of times of described maximum; Or reduce described initial power constant, promote described power ramp step-length and increase the soaring number of times of described maximum.

To reduce described initial power constant and to promote described power ramp step-length as example, by reducing leading initial power constant, can reduce the transmitting power of first random access guiding in random access procedure, thereby reduce the impact on ascending power load; By increasing the soaring step-length of pilot power, can reduce subscriber equipment the number of times that does random access attempts, reduce access delay, under the constant prerequisite of the soaring number of times of maximum, the maximum transmission power that this time adjustment may reach random access guiding does not affect.

Base station equipment by adjust after above-mentioned random access parameter be issued to subscriber equipment in community, subscriber equipment after initiation random access request in, can use the random access parameter after adjustment to send random access guiding to base station equipment.

Optionally, base station equipment can send to subscriber equipment in community by the mode of Cell Broadcast CB.Take WCDMA system as example, RNC can be by the mode of system message, for example, and by the system information block (SIB5) that comprises community public physic channel configuration parameter, described random access parameter after adjusting is issued to Node B, then is broadcast to described subscriber equipment by Node B.

Optionally, in base station equipment, can set in advance the initial value of random access parameter.Described initial value can, with reference to the span of agreement regulation, arrange by network practical operation situation.For example, according to the optional scope of the initial power constant initial value of 3GPP agreement regulation be-35db～-10db, the optional scope of described power ramp step-length initial value is 1db～8db, and the optional scope of the soaring number of times initial value of described maximum is 1 time～64 times.

Adopt the disclosed method of the embodiment of the present invention, base station equipment is according to the number of times that records the acknowledge message of the random access guiding of subscriber equipment transmission in Dui community, adjust random access parameter, due to base station equipment record is the number of times of acknowledge message, illustrate in current area, subscriber equipment still can access network, the channel condition of network does not also worsen, therefore according to the number of times of the acknowledge message of described random access guiding, can judge in advance that subscriber equipment sends random access guiding channel used and whether has congested risk, if there is the risk of channel congestion in current area, adjust random access parameter.Guaranteed before Random Access Channel appearance is congested, subscriber equipment just can utilize the random access parameter after optimization to send random access guiding, can prevent to occur channel congestion, has maintained random access success rate.

Optionally, method described in the embodiment of the present invention is also applicable to channel and has occurred congested, affect the situation that random access guiding sends, particularly because sending, random access guiding too much increases the weight of channel congestion, by adjusting random access parameter, can reduce the pressure of random access procedure to rach data capacity, and then alleviate and even eliminate channel congestion.

In another embodiment, after subscriber equipment starts to utilize the random access parameter transmission random access guiding after adjusting, the random access channel congestion situation in community can change thereupon.Therefore, optional, in the embodiment of the present invention, after having carried out step 105, can also comprise step 106-1013:

106: base station equipment continues to receive the random access guiding that in community, subscriber equipment sends, in the process of transmitting of described random access guiding, use the random access parameter after adjusting.

107: base station equipment continues to send new acknowledge message to described subscriber equipment.

108: base station equipment records the number of times of described new acknowledge message, obtain the number of times of new acknowledge message.

The number of times of the new acknowledge message that described record obtains is the same with the number of times of the acknowledge message that record in step 104 obtains, also can carry out filtering processing, using the number of times of the new acknowledge message obtaining as record of new acknowledge message after treatment herein, do not repeat them here.

109: the number of times of described new acknowledge message and the first thresholding are made comparisons, if the number of times of described new acknowledge message is still more than or equal to the first thresholding, proceed to step 1010; If the number of times of new acknowledge message is less than the first thresholding, proceed to step 1011.

1010: issue this random access parameter to described subscriber equipment and adjust flow process last time adjustment result or continuation adjustment random access parameter before.

If once adjust in flow process front, through judgement, system, in channel congestion alert status, is adjusted random access parameter, adjusts in flow process at this, can maintain to subscriber equipment and issue previous adjustment result.Also can continue to adjust random access parameter, more effectively alleviate channel congestion state.

1011: the number of times of described new acknowledge message and the second thresholding are made comparisons, and described the second thresholding is less than described the first thresholding.Described the second thresholding for the random access guiding number of times that judges subscriber equipment and send whether in normal scope.

Described the second thresholding can for weighing, whether channel congestion state have been removed because of the minimizing that random access guiding sends or base station is normal to random access request disposition, there is not channel congestion, if the number of times of described new acknowledge message is less than described the second thresholding, illustrate before this judgement, channel does not occur congested or adopts the random access parameter after adjusting to send random access guiding through subscriber equipment, eliminated channel congestion.

If the number of times of described new acknowledge message is less than or equal to described the second thresholding, proceed to step 1012; If the number of times of described new acknowledge message is greater than the second thresholding, proceed to step 1013.

1012: described base station equipment recovers to issue to subscriber equipment the initial value of described random access parameter.

If the number of times of described new acknowledge message is less than or equal to described the second thresholding, described base station equipment does not need to continue to adjust random access parameter, but can recover to issue to subscriber equipment the initial value of random access parameter, subscriber equipment utilizes access parameter initial value to initiate random access, can obtain shorter access delay, also save Internet resources.The value of described the second thresholding is less than the first thresholding, can, according to network practical operation situation, according to the first thresholding, described the second thresholding be chosen.

Optionally, described base station equipment can immediate recovery issues the initial value of described random access parameter to subscriber equipment; Or in Preset Time, keep issuing the random access parameter after adjustment to subscriber equipment, after described Preset Time is overtime, then recovery issues the initial value of described random access parameter.

After random access parameter is adjusted at least one times, channel congestion early warning is removed, now, still maintain and adjust the state of parameter and stop again after certain hour, for after preventing that parameter adjustment flow process from just having started to carry out, stop again in a short period of time, if frequently there is this situation, can cause network resources waste.In default certain hour, continue to adjust random access parameter, and during this period of time issue the random access parameter after adjustment to subscriber equipment.If exceed Preset Time, finish to adjust flow process, recover to issue the initial value of described random access parameter.

1013: described base station equipment maintains and issues this random access parameter to subscriber equipment and adjust last time before flow process and adjust result or recovery and issue the initial value of described random access parameter.

The method that adopts above-described embodiment to provide, after channel congestion early warning is removed, subscriber equipment can send random access guiding by pre-configured random access parameter initial value, shortens access delay, simplifies adjustment programme, raising efficiency.

In another embodiment of the present invention, described base station equipment can record to the summation of the number of times of the described acknowledge message that all subscriber equipmenies send in the community of described base station equipment.Base station equipment can be processed the random access request that in community, different user devices sends simultaneously, therefore, can send the acknowledge message of random access guiding to multiple subscriber equipmenies simultaneously.Base station equipment is made comparisons the total degree that records acknowledge message described in gained with default the first thresholding and the second thresholding, understand channel loading situation, judge channel congestion state, and then adjustment random access parameter.

Because the multiple subscriber equipmenies in community can use same Random Access Channel jointly, the random access guiding that considers multiple subscriber equipmenies in whole community sends situation, can know more accurately the load of Random Access Channel, the all types of user in community be can generally be applicable to through the random access parameter of adjusting, Cell Edge User and Cell Center User comprised.

The embodiment of the present invention also provides a kind of method of adjusting random access parameter, referring to Fig. 3.

In this embodiment, base station equipment can be monitored the uplink receiving total bandwidth power (RTWP, received total wideband power) of community, and base station equipment can periodically be monitored, and also can monitor described RTWP based on Event triggered.

In the time existing a large number of users equipment to initiate random access to base station in community, the lifting meeting of transmitted power causes the rising of cell uplink power termination, affects upstream data capacity and up throughput.Because random access procedure affects the ascending power load of community, therefore can coordinate channel congestion judgement to determine whether carrying out random access parameter adjustment according to the ascending power loading condition of current area, if the ascending power load too high of current area and occur channel congestion early warning, random access parameter is optimized, can reduces ascending power load; If the ascending power load of current area remains at low levels, without random access parameter is adjusted, subscriber equipment adopts pre-configured random access parameter initial value to initiate random access to base station, to obtain shorter access delay.

Can know the ascending power loading condition of current area by the up RTWP of monitoring community.Up RTWP reflection network uplink annoyance level, can be for assessment of network uplink load.In the too high scene of the ascending load of cell that causes at random access procedure, by adjusting random access parameter, can reduce traffic busy user and access at random the impact to up RTWP, make the state of up RTWP in a balance.Consider and reduce system bandwidth consumption, and guarantee real-time and the accuracy of the ascending power loading condition that base station equipment monitors, for example, the monitoring periods of up RTWP be may be selected to be to 1s, to promote the power access control effect of base station equipment.The described up RTWP monitoring is stored in base station equipment inside, and can upgrade by monitoring periods.Described sense cycle is not particularly limited in embodiments of the present invention.

Optionally, the monitoring of described up RTWP can be carried out any time before starting channel congestion early warning judgement, as long as guarantee need to use described up RTWP when adjusting the Rule of judgment of random access parameter, base station equipment can be obtained the up RTWP in current area, and the embodiment of the present invention is not particularly limited this.

In embodiments of the present invention, step 201-203 can, with reference to the step 101-103 in embodiment described in Fig. 1, not repeat at this.

204: base station equipment is made comparisons the number of times of described acknowledge message and the first thresholding, if the number of times of described acknowledge message is more than or equal to described the first thresholding, proceed to step 205-207, if not, return to step 201.

205: base station equipment judges whether up RTWP is greater than the predetermined threshold value of up RTWP.If so, proceed to step 206; If not, return to step 201.

The predetermined threshold value of described up RTWP can automatically be determined according to network statistical data by base station equipment, or select arbitrarily according to actual needs empirical value or experiment value.Optionally, the ascending power load of community is counted to 100% at full capacity, supposing to occur leading ascending power load ratio congested and that trigger self-adapting random access parameter optimized algorithm is A%(A>50%), calculate the value of corresponding RTWP, be predetermined threshold value.

206: base station equipment is adjusted random access parameter.

The method of described adjustment random access parameter can, with reference to the step 105 in embodiment described in figure 1, not repeat at this.

207: the above-mentioned random access parameter after adjusting is handed down to subscriber equipment by base station equipment, subscriber equipment can use the random access parameter through adjusting to send random access guiding to base station equipment.

Optionally, as an alternative embodiment of the invention, described method can also comprise step 208-2015, and described step 208-2015 can, with reference to the 106-1013 in embodiment described in figure 1, not repeat at this.

The method that adopts the embodiment of the present invention to provide, the ascending power load of base station equipment monitoring community, and the situation that issues of the acknowledge message of periodic statistics random access guiding, take channel congestion situation and cell uplink power termination value as judgement foundation, adjust random access parameter and be issued to subscriber equipment, for sending random access guiding.By optimizing adaptively random access parameter, guaranteeing, under the prerequisite of random access success rate, to reduce the ascending power load of community; In the time that cell uplink power termination is lower, random access parameter is not adjusted simultaneously, can be obtained shorter access delay.

The embodiment of the present invention also provides a kind of base station equipment, and for adjusting random access parameter, as shown in Figure 4, this base station equipment comprises:

Receiving element 301, the random access guiding that can send according to described random access parameter for receiving at least one subscriber equipment.

Optionally, the random access guiding that described receiving element 301 can send by RACH or E-RACH for receiving described at least one subscriber equipment.

The function of described receiving element 301 also can be carried out by receiver.

The first transmitting element 302, can, for receiving after described random access guiding at described receiving element, send acknowledge message to described at least one subscriber equipment, and described acknowledge message represents that described base station equipment successfully receives described random access guiding.

The function of described the first transmitting element 302 also can be carried out by transmitter.

Record cell 303, can be for recording the number of times of described the first transmitting element to the acknowledge message of described at least one subscriber equipment transmission.

Concrete, in described statistic unit 303, can comprise, first records subelement 3031, for recording the number of times of the actual acknowledge message issuing to subscriber equipment; Second records subelement 3032, carries out filtering processing for the number of times of acknowledge message that physical record is obtained, obtains the number of times of acknowledge message after treatment, as the basis for estimation of channel congestion early warning.

The detailed process of described filtering processing can, with reference to the associated description in embodiment of the method shown in Fig. 1, not repeat at this.

The first comparing unit 304, for the number of times of described acknowledge message and the first thresholding are made comparisons, described the first thresholding is used to indicate channel congestion state.

Optionally, described the first comparing unit 304 obtains the number of times of described acknowledge message after treatment from described record cell 303, after comparing, comparative result is sent to adjustment unit 305 with the form of Indication message, comprise, in the time that the number of times of described acknowledge message is more than or equal to described the first thresholding, send Indication message to adjustment unit 305.

Adjustment unit 305, for receiving described Indication message, adjusts random access parameter, obtains the random access parameter after adjusting.

The second transmitting element 306, for being sent to the random access parameter after described adjustment described at least one subscriber equipment.

Optionally, can send to each subscriber equipment in community by the mode of Cell Broadcast CB, specifically can, with reference to the associated description in embodiment of the method shown in Fig. 1, not repeat at this.

Choosing of described the first thresholding can, with reference to the associated description of the part of embodiment of the method shown in Fig. 2, not repeat them here.

The random access parameter that can adjust comprises: in the soaring number of times of the maximum of the initial power constant of random access guiding, the power ramp step-length of random access guiding, random access guiding any two or three.

Concrete adjustment mode to above-mentioned random access parameter can, with reference to the associated description in embodiment of the method shown in Fig. 2, not repeat them here.

Described record cell 303, the first comparing units 304, and the function of adjustment unit 305 also can be carried out by processor.

Optionally, in the embodiment of the present invention, can also comprise memory cell 307, for storing the initial value of above-mentioned random access parameter.Described initial value can, with reference to the span of agreement regulation, arrange by network practical operation situation.

The function of described memory cell 307 also can be carried out by memory.

Adopt the disclosed base station equipment of the embodiment of the present invention, according to the number of times that records the acknowledge message of the random access guiding of subscriber equipment transmission in Dui community, adjust random access parameter, due to base station equipment record is the number of times of acknowledge message, illustrate in current area, subscriber equipment still can access network, the channel condition of network does not also worsen, therefore according to the number of times of the acknowledge message of described random access guiding, can judge in advance that subscriber equipment sends random access guiding channel used and whether has congested risk, if there is the risk of channel congestion in current area, adjust random access parameter.Guaranteed before Random Access Channel appearance is congested, subscriber equipment just can utilize the random access parameter after optimization to send random access guiding, can prevent to occur channel congestion, has maintained random access success rate.

In another embodiment, after subscriber equipment starts to utilize the random access parameter transmission random access guiding after adjusting, the random access channel congestion situation in community can change thereupon.

Optionally, described receiving element 301 can be further used for, and receives the random access guiding that described at least one subscriber equipment sends according to the random access parameter after described adjustment.

Described the first transmitting element 302 can be further used for, receive described at least one subscriber equipment according to after the random access guiding of the random access parameter transmission after described adjustment at described receiving element 301, send new acknowledge message to described at least one subscriber equipment, described new acknowledge message represents that described base station equipment successfully receives the random access guiding that described at least one subscriber equipment sends according to the random access parameter after described adjustment.

Described record cell 303 can be further used for recording the number of times of described new acknowledge message;

Described the first comparing unit 304 can be further used for, the number of times of described new acknowledge message and the second thresholding are made comparisons, described the second thresholding for the random access guiding number of times that judges described at least one subscriber equipment and send according to the random access parameter after described adjustment whether in normal scope;

Described the second transmitting element 306 can be further used for, and when the number of times of described new acknowledge message is less than or equal to described the second thresholding, issues described random access parameter to described at least one subscriber equipment.

Described the first comparing unit 304 can also be used for, when the number of times of acknowledge message is less than the first thresholding, the number of times of described acknowledge message and the second thresholding are made comparisons, whether in normal scope, there is not the risk that causes channel congestion for the random access guiding number of times that judges subscriber equipment and initiate in described the second thresholding.

If the number of times of described acknowledge message is less than described the second thresholding, illustrate before this judgement, channel does not occur congested or adopts the random access parameter after adjusting to send random access guiding through subscriber equipment, eliminated channel congestion.

If the number of times of described acknowledge message is less than or equal to described the second thresholding, described the first comparing unit 304 sends the first Indication message to described the second transmitting element 306, and indication issues the initial value of the random access parameter of storage in described memory cell 307 to subscriber equipment.

Optionally, described the first comparing unit 304 can also send the second Indication message to described adjustment unit 305, and indication stops adjusting described random access parameter.

Described the second transmitting element 306 can immediate recovery issues the initial value of described random access parameter to subscriber equipment; Or maintain to subscriber equipment and issue random access parameter after adjustment and after Preset Time, then recover to issue the initial value of described parameter.

After channel congestion early warning is removed, still maintain state the process Preset Time of adjusting parameter, be for after preventing that parameter adjustment step from just having started to carry out, stop again in a short period of time, if frequently there is this situation, can cause network resources waste.

Therefore, in described the second transmitting element 306, can also comprise timing subelement 3061, receive after described the first Indication message for being recorded in described adjustment unit 306, maintain the time of adjusting described random access parameter state, exceed preset value when writing time, stop adjusting random access parameter.

The function of described the second transmitting element 306 also can be carried out by transmitter, and the function of described timing subelement 3061 also can be carried out by timer.

If the number of times of described acknowledge message is greater than the second thresholding and is less than the first thresholding, described the first comparing unit 304 can send the 3rd Indication message to described the second transmitting element 306, and indication maintains and issues this random access parameter and adjust last time before flow process and adjust result or recovery and issue the initial value of described random access parameter.

It should be noted that, above-mentioned the first Indication message, the second Indication message and the 3rd Indication message are only the divisions of carrying out for sake of clarity, do not form any restriction.Those skilled in the art can understand the implication of described Indication message to specifications.

In another embodiment of the present invention, described record cell 303 can record the summation of described base station equipment to the number of times of the described acknowledge message that all subscriber equipmenies send in the community of described base station equipment.Base station equipment can be processed the random access request that in community, different user devices sends simultaneously, and therefore, described the first transmitting element 304 can send the acknowledge message of random access guiding simultaneously to multiple subscriber equipmenies.Described the first comparing unit 303 is made comparisons the total degree of described acknowledge message and default the first thresholding and the second thresholding, understand channel loading situation, judge channel congestion state, and then by described adjustment unit 305, described random access parameter is proceeded to adjust.

Further, in another embodiment of the present invention, can also comprise monitoring means 308, for monitoring the uplink receiving total bandwidth power RTWP of community, and the described RTWP monitoring be sent to the second comparing unit 309.

Base station equipment can periodically be monitored, and also can monitor described RTWP based on Event triggered.

Up RTWP can reflect network uplink annoyance level, can be for assessment of network uplink load.In the too high scene of the ascending load of cell that causes at random access procedure, by adjusting random access parameter, can reduce traffic busy user and access at random the impact to up RTWP, make the state of up RTWP in a balance.Consider and reduce system bandwidth consumption, and guarantee real-time and the accuracy of the ascending power loading condition that base station equipment monitors, the monitoring periods of up RTWP be may be selected to be to 1s, to promote the power access control effect of base station equipment.

The second comparing unit 309: for receiving described up RTWP from described monitoring means 308, and make comparisons with RTWP predetermined threshold value, when described up RTWP is higher than described RTWP predetermined threshold value, send Indication message to described adjustment unit 305.

The threshold value of described up RTWP can automatically be determined according to network statistical data by base station equipment, or select arbitrarily according to actual needs empirical value or experiment value.Optionally, the ascending power load of community is counted to 100% at full capacity, supposing to occur leading ascending power load ratio congested and that trigger self-adapting random access parameter optimized algorithm is A%(A>50%), calculate the value of corresponding RTWP, be predetermined threshold value.

Described adjustment unit 305 is further used for, receive the Indication message of described the second comparing unit transmission and receive the Indication message that the first comparing unit sends, meet described up RTWP higher than default threshold value, and the number of times of described acknowledge message is more than or equal to described the first thresholding, adjusts described random access parameter.

The function of described monitoring means 308, the second comparing unit 309 also can be carried out by processor, and described processor can be to carry out described record cell 303, the first comparing units 304, and the processor of the function of adjustment unit 305.

Base station equipment shown in Fig. 4 that the embodiment of the present invention provides can be the base station equipment in the random access parameter method of adjustment embodiment shown in Fig. 1 or Fig. 2, base station equipment shown in Fig. 3 can be carried out random access parameter method of adjustment as shown in Figure 1 or 2, specifically can, with reference to the concrete grammar embodiment shown in above-mentioned Fig. 1 or Fig. 2, not repeat them here.

The base station equipment that adopts the embodiment of the present invention to provide, the ascending power load of base station equipment monitoring community, and the situation that issues of the acknowledge message of periodic statistics random access guiding, take channel congestion situation and cell uplink power termination value as judgement foundation, adjust random access parameter and be issued to subscriber equipment, for sending random access guiding.By optimizing adaptively random access parameter, guaranteeing, under the prerequisite of random access success rate, to reduce the ascending power load of community; In the time that cell uplink power termination is lower, random access parameter is not adjusted simultaneously, can be obtained shorter access delay.

The embodiment of the present invention also provides a kind of base station equipment, and as shown in Figure 5, this base station equipment comprises:

Memory 401: can be for storage instruction, described instruction can be for realizing a kind of method of adjusting random access parameter.

Described method comprises, receives the random access guiding that at least one subscriber equipment sends according to described random access parameter; Receive after described random access guiding, send acknowledge message to described at least one subscriber equipment, described acknowledge message represents that described base station equipment successfully receives described random access guiding; Record the number of times of described the first transmitting element to the acknowledge message of described at least one subscriber equipment transmission; The number of times of described acknowledge message and the first thresholding are made comparisons, and described the first thresholding is used to indicate channel congestion state; When the number of times of described acknowledge message is more than or equal to described the first thresholding, adjust random access parameter, obtain the random access parameter after adjusting; Random access parameter after described adjustment is sent to described at least one subscriber equipment.

Processor 402, carries out the above-mentioned instruction of storing in described memory.

Concrete, in described processor 403, can comprise, counter 4031, for recording the number of times of the actual acknowledge message issuing to subscriber equipment; Calculator 4032, for carrying out filtering processing to the number of times of the described actual acknowledge message issuing; Comparator 4033, for making comparisons the number of times of described acknowledge message and the first default thresholding.

Described processor 402 can send described random access guiding for receiving described subscriber equipment by Random Access Channel RACH or strengthening Random Access Channel E-RACH.

Described processor 402 can be for, records the summation of the number of times of the described acknowledge message that described base station equipment sends to all subscriber equipmenies in the community of described base station equipment.

Described processor 402 can also be further used for: the uplink receiving total bandwidth power RTWP of monitoring community, and by described comparator 4033, described up RTWP and predetermined threshold value are made comparisons, when described up RTWP is more than or equal to the first thresholding higher than the number of times of described predetermined threshold value and described acknowledge message, adjust described random access parameter.

Described comparator 4033 can also be used for, the number of times of the acknowledge message of the number of times of described acknowledge message and the second thresholding are made comparisons, when the number of times of described acknowledge message is lower than described the second thresholding, described processor 402 stops adjusting described random access parameter, recovers to issue to described at least one subscriber equipment the initial value of described random access parameter.

In this embodiment, described processor 403 can keep issuing the random access parameter after adjustment to described at least one subscriber equipment in Preset Time, after described Preset Time is overtime, backward described at least one subscriber equipment issues the initial value of described random access parameter.Therefore, in described processor 403, can also comprise timer 4034, keep issuing to subscriber equipment the time of the random access parameter after adjustment for recording base station equipment.

Base station equipment shown in Fig. 5 that the embodiment of the present invention provides can be the base station equipment in the random access parameter method of adjustment embodiment shown in Fig. 1 or Fig. 2, base station equipment shown in Fig. 5 can be carried out random access parameter method of adjustment as shown in Figure 1 or 2, specifically can be with reference to the concrete grammar embodiment shown in above-mentioned Fig. 1 or Fig. 2, can, with reference to the associated description in the embodiment of the base station equipment shown in Fig. 3, not repeat them here yet.

The embodiment of the present invention also provides a kind of subscriber equipment, as shown in Figure 6, comprises,

Transmitting element 601, can be for sending random access guiding according to random access parameter to base station equipment.

Receiving element 602, can receive the random access guiding acknowledge message that described base station equipment sends, and described acknowledge message represents that described base station equipment successfully receives described random access guiding; And for receiving the random access parameter after the adjustment that described base station equipment issues, random access parameter after described adjustment is that the number of times of the acknowledge message of the random access guiding that sent at least one subscriber equipment in the community of described base station equipment of described base station equipment record by described base station equipment is greater than or equal to after the first thresholding, described random access parameter adjustment is obtained and sends to described at least one subscriber equipment, and described the first thresholding is used to indicate channel congestion state;

Described transmitting element 602 can also be used for, and utilizes the random access parameter after described adjustment to send new random access guiding to described base station equipment.

Optionally, random access parameter after the adjustment that described base station equipment issues is to be greater than or equal to the first thresholding by described base station equipment at the number of times of the acknowledge message of described random access guiding, and the uplink receiving total bandwidth power RTWP that described base station equipment monitors is during higher than RTWP predetermined threshold value, described random access parameter adjustment is obtained and sends to described at least one subscriber equipment.

Optionally, described transmitting element 602 is by Random Access Channel RACH or strengthen Random Access Channel E-RACH and send described random access guiding.

The function of described receiving element 601 also can be realized by receiver, and the function of described transmitting element 602 also can be realized by transmitting element.

The subscriber equipment that adopts the embodiment of the present invention to provide, adopts the random access parameter after base station equipment is adjusted to send random access guiding, can prevent to occur channel congestion, maintains relatively constant random access success rate.Send and too much cause in the situation of channel congestion at random access guiding, send random access guiding by the random access parameter after adjusting, also can reduce the pressure of random access procedure to rach data capacity, and then alleviate and even eliminate channel congestion.

Those skilled in the art can be well understood to, and for convenience and simplicity of description, the specific works process of the equipment of foregoing description and module, can describe with reference to the corresponding process in preceding method embodiment.

In the several embodiment that provide in the application, should be understood that disclosed equipment and method can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described module, be only that a kind of logic function is divided, when actual realization, can have other dividing mode, for example multiple modules or assembly can in conjunction with or can be integrated in another equipment, or some features can ignore, or do not carry out.

In addition, the each functional module in each embodiment of the present invention can be integrated in a processing module, can be that the independent physics of modules exists, also can two or more module integrations in a module.

One of ordinary skill in the art will appreciate that all or part of step of implementing above-described embodiment can complete by hardware, also can carry out the hardware that instruction is relevant by program completes, described program can be stored in a kind of computer-readable medium, the above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.

Finally it should be noted that: the foregoing is only preferred embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims

1. a method of adjusting random access parameter, is characterized in that, described method comprises,

2. method according to claim 1, is characterized in that, described method also comprises,

The uplink receiving total bandwidth power RTWP of described base station equipment monitoring community, and described up RTWP and default RTWP threshold value are made comparisons;

3. method according to claim 1, is characterized in that, described method also comprises,

4. method according to claim 3, is characterized in that, the number of times of described new acknowledge message is less than or equal to described the second thresholding, and described base station equipment issues described random access parameter to described at least one subscriber equipment and comprises,

5. according to the arbitrary described method of claim 1 to 4, it is characterized in that, described base station equipment receives at least one subscriber equipment and comprises according to the random access guiding of described random access parameter transmission,

6. according to the arbitrary described method of claim 1 to 4, it is characterized in that, the number of times that described base station equipment records described acknowledge message comprises,

Described base station equipment records the summation of described base station equipment to the number of times of the described acknowledge message that all subscriber equipmenies send in the community of described base station equipment.

7. a base station equipment, is characterized in that, comprises,

8. base station equipment according to claim 7, is characterized in that, also comprise,

Monitoring means: for monitoring the uplink receiving total bandwidth power RTWP of community, and the described RTWP monitoring is sent to the second comparing unit;

9. base station equipment according to claim 7, is characterized in that,

Described receiving element is further used for, and receives the random access guiding that described at least one subscriber equipment sends according to the random access parameter after described adjustment;

10. base station equipment according to claim 9, is characterized in that,

Described the second transmitting element is further used for, and keeps issuing the random access parameter after described adjustment to described at least one subscriber equipment in Preset Time, after described Preset Time is overtime, issues described random access parameter to described at least one subscriber equipment.

11. according to the arbitrary described base station equipment of claim 7-10, it is characterized in that,

Described receiving element is further used for, and receives described at least one subscriber equipment by Random Access Channel RACH or strengthens the described random access guiding that Random Access Channel E-RACH sends.

12. according to the arbitrary described base station equipment of claim 7-10, it is characterized in that, described record cell is further used for, and records the summation of the number of times of the described acknowledge message that described base station equipment sends to all subscriber equipmenies in the community of described base station equipment.

13. 1 kinds of subscriber equipmenies, is characterized in that, comprise,

14. subscriber equipmenies according to claim 13, it is characterized in that, random access parameter after the adjustment that described base station equipment issues is to be greater than or equal to the first thresholding by described base station equipment at the number of times of the acknowledge message of described random access guiding, and the uplink receiving total bandwidth power RTWP that described base station equipment monitors is during higher than RTWP predetermined threshold value, described random access parameter adjustment is obtained and sends to described at least one subscriber equipment.

15. according to the subscriber equipment described in claim 13 or 14, it is characterized in that, described transmitting element, for sending random access guiding according to random access parameter to base station equipment, comprising: