CN105723793A

CN105723793A - Random access method and device

Info

Publication number: CN105723793A
Application number: CN201380000074.9A
Authority: CN
Inventors: 冯莉; 郑潇潇
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-02-07
Filing date: 2013-02-07
Publication date: 2016-06-29
Anticipated expiration: 2033-02-07
Also published as: CN105723793B

Abstract

The invention provides a random access method and device. The method comprises the steps of detecting an instruction of returning to a physical random access channel during public enhanced dedicated channel; judging whether the transmitting power parameter of sending a precursor in public enhanced dedicated channel access the last time is greater than a threshold parameter; if the transmitting power parameter of sending a precursor in public enhanced dedicated channel access the last time is greater than a threshold parameter, sending a precursor at the physical random access channel with the power corresponding to the threshold parameter. The technical solution can reduce the interference of UE to other users in a community and increase the UE random access efficiency.

Description

A kind of method and apparatus of Stochastic accessing

Technical field

The present invention relates to communication technical field, particularly to the method and apparatus of a kind of Stochastic accessing.

Background technology

In the umts system, subscriber equipment (UE, UserEquipment) there are cell private channel (CELL_DCH, CELL-dedicatedChannel) state, cell forward access state (CELL_FACH, CELL-ForwardAccessChannel) state, cell paging channel (CELL_PCH, CELL-PagingChannel) state, Acceditation Area paging (URA_PCH, UTRANRegistrationArea_PagingChannel) state, idle (IDLE) state five kinds.Idle condition, CELL_FACH state, _ FACH state, or the UE of URA_PCH state are all without safeguarding special resource, and before initiation business, UE will perform random access procedure.

Stochastic accessing includes two types, and namely Physical Random Access Channel (PRACH, PhysicalRandomAccessChannel) accesses and the access of public enhancing dedicated channel (commonE-DCH, commonEnhancedDedicatedChannel).Some UE current can support PRACH to access simultaneously and commonE DCH accesses, and when commonE-DCH accesses, if network side is busy, UE can select PRACH to access, and improves Stochastic accessing success rate；Some UE only supports that PRACH accesses, and when network side is busy, UE can in time by waiting time randomization, it is to avoid has multiple UE competition network side same asset simultaneously in the same time, improves Stochastic accessing and be successfully accessed rate.

But, for can support the UE that PRACH accesses and commonE DCH accesses simultaneously, when commonE-DCH access failure, UE returns to PRACH and accesses, when UE adopts PRACH to access, the power sending leading (preamble) is adopt commonE-DCH to send leading power for the last time when accessing, and this power is likely to very big, cause that UE is when PRACH accesses, other user in community is brought very big interference.

On the other hand, for only supporting the PRACH UE accessed, UE is when PRACH accesses, obtaining to catch, instruction channel have received negative acknowledgment (i.e. NACKINAICH, NegativeAcknowledgmentINAcquisitionIndicatorChannel), represent UE this time physical layer random access failure, but, if this UE still has the chance again carrying out Stochastic accessing, now UE is in time by waiting time randomization, in waiting time randomized process, UE starts TB01 intervalometer, the relevant parameter of this intervalometer be UE read system information block 5(SystemInformationBlock5) in acquisition, UE obtains the parameter that TB01 intervalometer is relevant, can not upgrade in time according to load or network interferences situation, when causing light load, UE need nonetheless remain for keeping out of the way for a long time, add the time of Stochastic accessing, reduce the efficiency of Stochastic accessing.

Summary of the invention

The embodiment of the present invention provides the method and apparatus of a kind of Stochastic accessing, can reduce the UE interference to other user of community on the one hand, improves the efficiency of UE Stochastic accessing on the one hand.

First aspect, it is provided that method described in a kind of method of Stochastic accessing includes:

The instruction returning back to Physical Random Access Channel is detected when public enhancing dedicated channel accesses；

Judge that whether last access in described public enhancing dedicated channel sends leading transmitting power parameter more than threshold parameter,

If described last access in described public enhancing dedicated channel sends leading transmitting power parameter more than threshold parameter, send leading with the power that described threshold parameter is corresponding at Physical Random Access Channel.

In the implementation that the first is possible, according to first aspect, described transmitting power parameter is transmitting power, described judgement accesses in public enhancing dedicated channel for the last time and whether sends leading transmitting power parameter more than threshold parameter, if last access in public enhancing dedicated channel sends leading transmitting power parameter more than threshold parameter, send leading with the power that described threshold parameter is corresponding at Physical Random Access Channel, specifically include:

Judge that whether last access in public enhancing dedicated channel sends leading transmitting power more than threshold power,

If last access in public enhancing dedicated channel sends leading transmitting power more than threshold power, send leading with described threshold power at Physical Random Access Channel.

In the implementation that the second is possible, in conjunction with first aspect or implementation that the first is possible, described method also includes:

If accessing the leading transmitting power of transmission in public enhancing dedicated channel to be for the last time not more than threshold power, send leading with the described last transmitting power leading in the access transmission of public enhancing dedicated channel at Physical Random Access Channel.

In the implementation that the third is possible, described transmitting power parameter is send leading number of times,

Described judgement accesses in public enhancing dedicated channel for the last time and whether sends leading transmitting power parameter more than threshold parameter, if last access in public enhancing dedicated channel sends leading transmitting power parameter more than threshold parameter, send leading specifically including with the power that described threshold parameter is corresponding at Physical Random Access Channel:

Judge that last is the Z time at the public enhancing dedicated channel access leading number of times of transmission, if more than threshold number M, if it does, send leading with the power that described threshold number is corresponding at Physical Random Access Channel.

In the 4th kind of possible implementation, in conjunction with first aspect or the third possible implementation, described method also includes:

It is the Z time that judgement accesses the leading number of times of transmission in public enhancing dedicated channel for the last time, is not more than threshold number M, sends leading with the described last transmitting power leading in the access transmission of public enhancing dedicated channel at Physical Random Access Channel.

In the 5th kind of possible implementation, in conjunction with any one of first aspect or implementation that the first is possible to the 4th kind of possible implementation, described detect that the instruction returning back to Physical Random Access Channel includes when public enhancing dedicated channel accesses:

When public enhancing dedicated channel accesses, send leading to network equipment；

When AICH channel being both not detected by just confirm to indicate also without detection negative acknowledgment instruction,

Send leading to network equipment with the transmitting power after soaring；

Receive network equipment and obtaining the negative acknowledgment (NACK) catching instruction channel transmission, then return back to Physical Random Access Channel and access.

Second aspect, it is provided that a kind of accidental access device, described device includes: detection unit, the first judging unit, and transmitting element；

Described detection unit, for detecting, when public enhancing dedicated channel accesses, the instruction returning back to Physical Random Access Channel；

Described first judging unit, for judging that whether the last transmitting power parameter leading in the access transmission of described public enhancing dedicated channel be more than threshold parameter,

Described transmitting element, if for the described last transmitting power parameter leading in the access transmission of described public enhancing dedicated channel more than threshold parameter, sending leading with the power that described threshold parameter is corresponding at Physical Random Access Channel.

In the implementation that the first is possible, according to second aspect, described transmitting power parameter is transmitting power；

Described first judging unit, specifically for judging that whether the last transmitting power leading in the access transmission of public enhancing dedicated channel be more than threshold power；

Described transmitting element, if accessing the leading transmitting power of transmission more than threshold power specifically for last in public enhancing dedicated channel, sends leading with described threshold power at Physical Random Access Channel.

In the implementation that the second is possible, in conjunction with second aspect or implementation that the first is possible, described transmitting element, if being additionally operable to access the leading transmitting power of transmission in public enhancing dedicated channel to be for the last time not more than threshold power, send leading with the described last transmitting power leading in the access transmission of public enhancing dedicated channel at Physical Random Access Channel.

Described first judging unit, specifically for judging that accessing the leading number of times of transmission in public enhancing dedicated channel for the last time is the Z time, if more than threshold number M；

Described transmitting element, if being the Z time specifically for accessing the leading number of times of transmission in public enhancing dedicated channel for the last time, more than M, sends leading with the power that described threshold number is corresponding at Physical Random Access Channel.

In the 4th kind of possible implementation, in conjunction with second aspect or the third possible implementation, described transmitting element, it is additionally operable to judge that last is the Z time at the public enhancing dedicated channel access leading number of times of transmission, it is not more than threshold number M, sends leading with the described last transmitting power leading in the access transmission of public enhancing dedicated channel at Physical Random Access Channel.

In the 5th kind of possible implementation, in conjunction with any one of second aspect or implementation that the first is possible to the 4th kind of possible implementation, described detection unit includes: send pilot unit, sends power ramp unit, and receive unit；

Described transmission pilot unit, for when public enhancing dedicated channel accesses, sending leading to network equipment；

Described transmission power ramp unit, during for being both not detected by just confirming to indicate also without detection negative acknowledgment instruction on AICH channel, sends leading to network equipment with the transmitting power after soaring；

Described reception unit, is obtaining, for receiving network equipment, the negative acknowledgment (NACK) catching instruction channel transmission, is then returning back to Physical Random Access Channel and access.

The third aspect, it is provided that a kind of accidental access device, it is characterised in that including:

Described processor, for detecting, when public enhancing dedicated channel accesses, the instruction returning back to Physical Random Access Channel；For judging that whether the last transmitting power parameter leading in the access transmission of described public enhancing dedicated channel be more than threshold parameter,

Described transmitter, if for the described last transmitting power parameter leading in the access transmission of described public enhancing dedicated channel more than threshold parameter, sending leading with the power that described threshold parameter is corresponding at Physical Random Access Channel.

In the implementation that the first is possible, according to the third aspect, described transmitting power parameter is transmitting power；

Described processor, specifically for judging that whether the last transmitting power leading in the access transmission of public enhancing dedicated channel be more than threshold power；

Described transmitter, if accessing the leading transmitting power of transmission more than threshold power specifically for last in public enhancing dedicated channel, sends leading with described threshold power at Physical Random Access Channel.

In the implementation that the second is possible, in conjunction with the third aspect or implementation that the first is possible,

Described transmitter, if being additionally operable to access the leading transmitting power of transmission in public enhancing dedicated channel to be for the last time not more than threshold power, send leading with the described last transmitting power leading in the access transmission of public enhancing dedicated channel at Physical Random Access Channel.

Described processor, specifically for judging that accessing the leading number of times of transmission in public enhancing dedicated channel for the last time is the Z time, if more than threshold number M；

Described transmitter, if being the Z time specifically for accessing the leading number of times of transmission in public enhancing dedicated channel for the last time, more than M, sends leading with the power that described threshold number is corresponding at Physical Random Access Channel.

In the 4th kind of possible implementation, in conjunction with the third aspect or the third possible implementation, described transmitter, it is additionally operable to judge that last is the Z time at the public enhancing dedicated channel access leading number of times of transmission, it is not more than threshold number M, sends leading with the described last transmitting power leading in the access transmission of public enhancing dedicated channel at Physical Random Access Channel.

In the 5th kind of possible implementation, in conjunction with any one of the third aspect or implementation that the first is possible to the 4th kind of possible implementation, described transmitter, it is additionally operable to, when public enhancing dedicated channel accesses, send leading to network equipment；

Described processor, when being additionally operable to both be not detected by just confirming to indicate also without detection negative acknowledgment instruction on AICH channel, sends leading to network equipment with the transmitting power after soaring；

Described accidental access device also includes: receptor, is obtaining, for receiving network equipment, the negative acknowledgment (NACK) catching instruction channel transmission, is then returning back to Physical Random Access Channel and access.

Fourth aspect, it is provided that a kind of accidental access method, described method includes:

Receive the random back parameter information that the network equipment sends；

The deadline of random back intervalometer is determined according to described random back parameter information；

When public enhancing dedicated channel or Physical Random Access Channel, obtaining to catch, instruction channel detects that negative acknowledgment indicates；

Start described random back intervalometer；

After the cut-off of described random back intervalometer, perform degree of adhering to inspection；

Degree of adhering to inspection, by rear, initiates Stochastic accessing in public enhancing dedicated channel or Physical Random Access Channel.

In the implementation that the first is possible, according to fourth aspect, described random back parameter information is specially dynamically degree of adhering to grade point.

In the implementation that the second is possible, according to fourth aspect, described random back parameter information is type of service and the mapping table of the random back factor；

The described deadline determining random back intervalometer according to described random back parameter, including:

Determine that described user terminal triggers the type of service of Stochastic accessing；

Type of service according to described user terminal triggering Stochastic accessing determines the deadline of random back intervalometer from described mapping table.

In the implementation that the third is possible, according to fourth aspect, described random back parameter information is priority of logical channels and the mapping table of the random back factor；

Determine the priority of logical channels that the business of described user terminal triggering Stochastic accessing is corresponding；

Trigger the priority of logical channels corresponding to type of service of Stochastic accessing according to described user terminal, from described mapping table, determine the deadline of random back intervalometer.

In the 4th kind of possible implementation, according to fourth aspect, described random back parameter information is access grade or the mapping table of access service grade and the random back factor；

Access grade according to described user terminal determines the deadline of random back intervalometer from described mapping table.

In the 5th kind of possible implementation, in conjunction with any one of the first possible implementation to the 4th kind of possible implementation, the described deadline determining random back intervalometer according to described random back parameter, specifically include:

The scope of the deadline according to the intervalometer TB01 obtained in system message, randomly generates a numerical value, by described numeral and 2 in described scope^NBeing multiplied, the result being multiplied is as the deadline of intervalometer TB01, and wherein, N is the described random back factor, or N is described dynamically degree of adhering to grade point；

Or, the scope according to the deadline of the intervalometer TB01 obtained in the system message read, by constant for the minima of scope, the maximum of scope is set to 10*2^N, in this new range, randomly choose a number, as the deadline of intervalometer TB01, wherein, N is the described random back factor, or N be described dynamically adhere to read grade point；

Or, the scope according to the deadline of the intervalometer TB01 obtained in the system message read, by constant for the maximum of scope, the minima of scope is set to 10*2^N, in this new range, randomly choose a number, as the deadline of intervalometer TB01, wherein, N is the random back factor, or N be described dynamically adhere to read grade point.

5th aspect, it is provided that device described in a kind of accidental access device includes: first receives unit, obtains unit deadline, the first detection unit, start unit, degree of adhering to detection unit, and access unit；

Described first receives unit, for receiving the random back parameter information that the network equipment sends；

Described acquisition unit deadline, for determining the deadline of random back intervalometer according to described random back parameter information；

Described first detection unit, for when public enhancing dedicated channel or Physical Random Access Channel, detecting that negative acknowledgment indicates obtaining to catch on instruction channel；

Described start unit, is used for starting described random back intervalometer；

Described degree of adhering to detection unit, after ending for described random back intervalometer, performs degree of adhering to inspection；

Described access unit, is used for degree of adhering to inspection by rear, initiates Stochastic accessing in public enhancing dedicated channel or Physical Random Access Channel.

In the implementation that the first is possible, according to the 5th aspect, described random back parameter information is specially dynamically degree of adhering to grade point.

In the implementation that the second is possible, according to the 5th aspect, described random back parameter information is type of service and the mapping table of the random back factor；

Described acquisition unit deadline, specifically for determining that described user terminal triggers the type of service of Stochastic accessing and determines the deadline of random back intervalometer according to the type of service of described user terminal triggering Stochastic accessing from described mapping table.

In the implementation that the third is possible, according to the 5th aspect, stating random back parameter information is priority of logical channels and the mapping table of the random back factor；

Described acquisition unit deadline, specifically for determining that described user terminal triggers the priority of logical channels corresponding to business of Stochastic accessing；Trigger the priority of logical channels corresponding to type of service of Stochastic accessing according to described user terminal, from described mapping table, determine the deadline of random back intervalometer.

In the 4th kind of possible implementation, according to the 5th aspect, described random back parameter information is access grade or the mapping table of access service grade and the random back factor；

Described acquisition unit deadline, determines the deadline of random back intervalometer specifically for the access grade according to described user terminal from described mapping table.

In the 5th kind of possible implementation, in conjunction with any one of the possible implementation of the first possible implementation to the 4th kind, described acquisition unit deadline, scope specifically for the deadline according to the intervalometer TB01 obtained in system message, a numerical value is randomly generated, by described numeral and 2 in described scope^NBeing multiplied, the result being multiplied is as the deadline of intervalometer TB01, and wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point；

Or, specifically for the scope of the deadline according to the intervalometer TB01 obtained in the system message read, by constant for the minima of scope, the maximum of scope is set to 10*2^N, in this new range, randomly choose a number, as the deadline of intervalometer TB01, wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point；

Or, specifically for the scope of the deadline according to the intervalometer TB01 obtained in the system message read, by constant for the maximum of scope, the minima of scope is set to 10*2^N, in this new range, randomly choose a number, as the deadline of intervalometer TB01, wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point.

6th aspect, it is provided that a kind of accidental access device, including；

Receptor, for receiving the random back parameter information that the network equipment sends；

Processor, for determining the deadline of random back intervalometer according to described random back parameter information；For when public enhancing dedicated channel or Physical Random Access Channel, instruction channel detecting that negative acknowledgment indicates obtaining to catch；For starting described random back intervalometer；After ending for described random back intervalometer, perform degree of adhering to inspection；For degree of adhering to inspection by rear, initiate Stochastic accessing in public enhancing dedicated channel or Physical Random Access Channel.

In the implementation that the first is possible, according to the 6th aspect, described random back parameter information is specially dynamically degree of adhering to grade point.

In the implementation that the second is possible, according to the 6th aspect, described random back parameter information is type of service and the mapping table of the random back factor；

Described processor, is additionally operable to determine the type of service that described user terminal triggers Stochastic accessing；Type of service according to described user terminal triggering Stochastic accessing determines the deadline of random back intervalometer from described mapping table

In the implementation that the third is possible, according to the 6th aspect, stating random back parameter information is priority of logical channels and the mapping table of the random back factor；

Described processor, is additionally operable to determine that described user terminal triggers the priority of logical channels that the business of Stochastic accessing is corresponding；Trigger the priority of logical channels corresponding to type of service of Stochastic accessing according to described user terminal, from described mapping table, determine the deadline of random back intervalometer.

In the 4th kind of possible implementation, according to the 6th aspect, described random back parameter information is access grade or the mapping table of access service grade and the random back factor；

Described processor, is additionally operable to the access grade according to described user terminal or access service grade and determines the deadline of random back intervalometer from described mapping table.

In the 5th kind of possible implementation, in conjunction with any one of the possible implementation of the first possible implementation to the 4th kind, described processor, it is additionally operable to according to the scope of the deadline of the intervalometer TB01 of acquisition in system message, a numerical value is randomly generated, by described numeral and 2 in described scope^NBeing multiplied, the result being multiplied is as the deadline of intervalometer TB01, and wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point；

Or, it is additionally operable to according to the scope of the deadline of the intervalometer TB01 of acquisition in the system message read, by constant for the minima of scope, the maximum of scope is set to 10*2^N, in this new range, randomly choose a number, as the deadline of intervalometer TB01, wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point；

Or, it is additionally operable to according to the scope of the deadline of the intervalometer TB01 of acquisition in the system message read, by constant for the maximum of scope, the minima of scope is set to 10*2^N, in this new range, randomly choose a number, as the deadline of intervalometer TB01, wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point.

A kind of accidental access method that the embodiment of the present invention provides, UE is after commonE-DCH access failure, when returning to PRACH access, first determine whether to send leading transmitting power for the last time when commonE-DCH accesses whether more than threshold power, if greater than threshold power, then send leading with threshold power at PRACH.The UE interference to other user of community can be reduced.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the flow chart of the method for processing business that the inventive method embodiment one provides；

Fig. 2 is the flow chart of the method for a kind of Stochastic accessing that the inventive method embodiment two provides；

Fig. 3 is the flow chart of the method for a kind of Stochastic accessing that the inventive method embodiment three provides；

Fig. 4 is the flow chart of the method for a kind of Stochastic accessing that the inventive method embodiment four provides；

Fig. 5 a is the flow chart of the method for a kind of Stochastic accessing that the inventive method embodiment five provides；

Fig. 5 b is the flow chart by waiting time randomization operation that the inventive method embodiment five provides；

Fig. 6 a is a kind of accidental access device simplified schematic diagram that the inventive method embodiment six provides；

Fig. 6 b is detection unit simplified schematic diagram in the inventive method embodiment six；

Fig. 7 is a kind of accidental access device simplified schematic diagram that the inventive method embodiment seven provides；

Fig. 8 is a kind of accidental access device simplified schematic diagram that the inventive method embodiment eight provides；

Fig. 9 is a kind of accidental access device simplified schematic diagram that the inventive method embodiment nine provides.

Detailed description of the invention

For making the purpose of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.

The techniques described herein may be used in various communication system, such as current 2G, 3G communication system and next generation communication system, such as global system for mobile communications (GSM, GlobalSystemforMobilecommunications), CDMA (CDMA, CodeDivisionMultipleAccess) system, time division multiple acess (TDMA, TimeDivisionMultipleAccess) system, WCDMA (WCDMA, WidebandCodeDivisionMultipleAccessWireless), frequency division multiple access (FDMA, FrequencyDivisionMultipleAddressing) system, OFDM (OFDMA, OrthogonalFrequency-DivisionMultipleAccess) system, Single Carrier Frequency Division Multiple Access (SC-FDMA) system, GPRS (general packet radio service) (GPRS, GeneralPacketRadioService) system, Long Term Evolution (LTE, LongTermEvolution) system, and other these type of communication systems.

Herein in connection with subscriber equipment and/or base station and/or base station controller, various aspect is described.

Subscriber equipment, it is possible to be wireless terminal can also be catv terminal, wireless terminal may refer to provide a user with the equipment of voice and/or data connectivity, has the portable equipment of wireless connecting function or is connected to other process equipment of radio modem.Wireless terminal can through wireless access network (such as, RAN, RadioAccessNetwork) communicate with one or more core net, wireless terminal can be mobile terminal, such as mobile phone (or being called " honeycomb " phone) and the computer with mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.Such as, PCS (PCS, PersonalCommunicationService) phone, wireless phone, Session Initiation Protocol phone, WLL (WLL, WirelessLocalLoop) stand, the equipment such as personal digital assistant (PDA, PersonalDigitalAssistant).Wireless terminal can also be called system, subscri er unit (SubscriberUnit), subscriber station (SubscriberStation), movement station (MobileStation), mobile platform (Mobile), distant station (RemoteStation), access point (AccessPoint), remote terminal (RemoteTerminal), access terminal (AccessTerminal), user terminal (UserTerminal), user agent (UserAgent), subscriber equipment (UserDevice) or subscriber's installation (UserEquipment).

Base station (such as, access point) may refer in Access Network aloft on interface by the equipment of one or more sectors Yu wireless terminal communications.Base station can be used for mutually changing the air frame received with IP packet, and as the router between wireless terminal and the remainder of Access Network, wherein the remainder of Access Network can include Internet protocol (IP) network.The base station also tunable attribute management to air interface.Such as, base station can be the base station (BTS, BaseTransceiverStation) in GSM or CDMA, it can also be the base station (NodeB) in WCDMA, can also is that the evolved base station (NodeB or eNB or e-NodeB, evolutionalNodeB) in LTE, the application does not limit.

Base station controller, it is possible to be the base station controller (BSC, basestationcontroller) in GSM or CDMA, it is also possible to being the radio network controller (RNC, RadioNetworkController) in WCDMA, the application does not limit.

It addition, the terms " system " and " network " are often used interchangeably in this article.The terms "and/or", is only a kind of incidence relation describing affiliated partner, and expression can exist three kinds of relations, for instance, A and/or B, it is possible to represent: individualism A, there is A and B, individualism B these three situation simultaneously.It addition, character "/" herein, typically represent forward-backward correlation to as if the relation of a kind of "or".

Embodiment one

The embodiment of the present invention provides a kind of method of Stochastic accessing, as it is shown in figure 1, the method is as described below.

101, detect, when public enhancing dedicated channel accesses, the instruction returning back to Physical Random Access Channel.

102, it is judged that whether last access in described public enhancing dedicated channel sends leading transmitting power parameter more than threshold parameter.

103, if described last access in described public enhancing dedicated channel sends leading transmitting power parameter more than threshold parameter, send leading with the power that described threshold parameter is corresponding at Physical Random Access Channel.

Further, the method can also include: 104, it is not more than threshold parameter in the described public enhancing dedicated channel access leading transmitting power parameter of transmission for the last time if described, leading in Physical Random Access Channel transmission with the last transmitting power leading in the access transmission of public enhancing dedicated channel.

Embodiment two

The embodiment of the present invention provides a kind of method of Stochastic accessing.R11 is introduced and return back to Physical Random Access Channel (FallbacktoR99PRACH) characteristic, after UE is retired PRACH access, when PRACH initiates to access, do not read information in SIB7 so that what UE cannot be real-time obtains the public enhancing dedicated channel interference value comprised in SIB7.The purposes of this public enhancing dedicated channel interference value is: make UE according to this public enhancing dedicated channel interference value, it is possible to calculate the UE transmitting power being initially accessed.

UE can read the public enhancing dedicated channel interference value comprised in SIB5 after powering, according to the public enhancing dedicated channel interference value obtained from SIB5, calculates the transmitting power being initially accessed when commonE-DCH accesses.Information owing to reading in SIB5 is to change according to network real-time condition in time, in SIB5 public enhancing dedicated channel interference value arrange very conservative, therefore, UE is when commonE-DCH accesses, gradually after soaring transmitting power, just can be detected by network equipment.

Even if after network equipment detects, under a lot of scenes, network equipment returns discontinuous transmission (DTX to UE, DiscontinuousTransmission) message, namely network equipment detect that UE sends leading after do not send any instruction, namely do not send ACK, do not send NACK yet.Therefore, UE is when commonE-DCH accesses, and gradually rise transmitting power.Until network equipment sends NACK message to after UE on AICH, UE returns to PRACH and accesses.

When UE returns to after PRACH accesses, UE sends leading transmitting power, if the leading transmitting power sent for the last time when accessing with commonE-DCH is identical, is then easily detected by network equipment, but other users in community is caused very big interference simultaneously.Therefore, in embodiments of the present invention, after UE returns to PRACH access, UE, according to judgement, selects reasonably to send leading transmitting power, it is to avoid to the interference of other users in community.

Concrete grammar is as in figure 2 it is shown, the method is as described below.

201, UE when commonE-DCH accesses, and sends leading to network equipment.

202, after UE leads before sending, after waiting the setting time, if not receiving ACK or NACK on AICH, send leading to network equipment with the transmitting power after soaring, wherein, the transmitting power after riseing can be fixing with the last difference sending leading transmitting power, it is also possible to is arrange according to concrete practical situation.

Wherein, the waiting time of setting can be 1.5 time slots, or 2.5 time slots, or other waiting time.

It is to be appreciated that do not receive ACK or NACK on AICH, then can improve at the commonE-DCH UE accessed and send leading transmitting power, be called that the transmitting power after riseing sends leading.

203, UE when commonE-DCH accesses, and receives the NACK instruction that network equipment sends, then return back to PRACH and access on AICH, concrete operations such as follow-up 204 to 207.

204, UE judge that whether the last time sends leading transmitting power more than threshold power (Power-Threshold) when commonE-DCH accesses, if it is, perform 205, send leading with threshold power at PRACH.

If UE judges to send leading transmitting power more than threshold power in the access of public enhancing dedicated channel for the last time in 204, perform 206, then send leading with the last transmitting power leading in the access transmission of public enhancing dedicated channel at PRACH.

Wherein, UE receives NACK message and then represents: UE adopts commonE-DCH random access failure, and UE return back to PRACH and accesses.

It is also to be appreciated that threshold power (Power-Threshold) can be predefined or configurable.When the effect of threshold power makes UE return back to PRACH access, send leading power less than this threshold power, reduce UE and other user in community is interfered.

Preferably, the embodiment of the present invention can also, before 201, including following 207, be used for reducing UE number of times of power ramp when commonE-DCH accesses.

207, UE obtain public enhancing dedicated channel uplink interference value (UpLinkInterferenceforcommonE-DCH) from network side in real time.Wherein, a kind of the implementing of 207 may is that the public enhancing dedicated channel interference value comprised in reading SIB7 real-time for UE.Only it is easy for the citing understood herein, is not limiting as other method implemented of 207.

Owing to adding above-mentioned 207, then 201 specifically include: according to the public enhancing dedicated channel interference value obtained, calculate and send leading transmitting power, send leading to network side with the transmitting power calculated.

By increasing by 207, the UE public enhancing dedicated channel interference values that can obtain in real time, calculate and send leading transmitting power, send leading to network side with the transmitting power calculated.Wherein, the transmitting power calculated makes UE can be easier to be found by network equipment, it is to avoid UE power ramp repeatedly just can be found by network equipment, improves the efficiency of UE Stochastic accessing.

Embodiment three

The embodiment of the present invention provides a kind of method of Stochastic accessing, the method that the method provides to embodiment two is similar, it is different in that, UE specific practice of power ramp when commonE-DCH accesses is not specified by embodiment two, and in the present embodiment, UE is when commonE-DCH accesses, and every time soaring power is by rule, and each power increment value is identical.Therefore, after UE carries out commonE-DCH access failure, when returning back to PRACH access, UE can only judge whether (such as, this threshold number is m), after more than threshold number more than threshold number for the number of times that rises, when PRACH accesses, with the transmitting power that this threshold number is corresponding, occur leading, it is to avoid UE interference to other user when PRACH accesses.

As it is shown on figure 3, the method is as described below.

301, UE when commonE-DCH accesses, and sends leading to network equipment.

302, UE lead before sending after, wait after the setting time, if not receiving ACK or NACK on AICH, leading to network equipment with the transmission of the transmitting power after soaring；Transmitting power after soaring is based on the current leading number of times that sends and determines.Namely result calculated as below can represent currently transmitted leading transmitting power, it may be assumed that

Preamble_Initial_Power+P0*Z

Wherein, Preamble_Initial_Power is UE accesses initial Initial Trans at commonE-DCH, Z be UE at the number of times of power ramp when commonE-DCH accesses, the value added of transmitting power, i.e. power ramp step-length when P0 is rise every time.

303, UE receive the NACK message that network equipment sends on AICH.

304, UE judges that whether currently transmitted leading number of times is more than threshold number, if greater than threshold number, performs 305, send leading with the transmitting power that threshold number is corresponding at PRACH, namely with power: (Preamble_Initial_Power+P0*m) initiates PRACH and access.

If UE judges that sending leading number of times is not more than threshold number, performs 306 in 304, send leading with the transmitting power that currently transmitted leading number of times is corresponding at PRACH, i.e. (Preamble_Initial_Power+P0*Z), initiate PRACH and access.

It is also to be appreciated that threshold number can be predefined or configurable.When the effect of the transmitting power that threshold number is corresponding makes UE return back to PRACH access, send the leading power transmitting power less than this correspondence, reduce UE and other user in community is interfered.

A kind of accidental access method that the embodiment of the present invention provides, UE is after commonE-DCH access failure, when returning to PRACH access, first determine whether when commonE-DCH access failure, whether send leading number of times more than threshold number, if greater than threshold number, then send leading with the transmitting power that threshold number is corresponding at PRACH.The UE interference to other user of community can be reduced.

Embodiment four

The embodiment of the present invention provides a kind of method of Stochastic accessing, is mainly used in supporting the UE that PRACH accesses in the method, it is also possible to be applied in the commonE-DCH UE accessed.As shown in Figure 4, the method is as described below.

401 receive the random back parameter information that the network equipment sends.

Wherein, the described network equipment can be base station or radio network controller (RNC), described random back parameter information, can be specifically dynamic degree of adhering to grade point, or the mapping table of type of service and random back factor N；Or the mapping table of priority of logical channels and the random back factor；Or the mapping table of access grade or access service grade and the random back factor.

402, the deadline of random back intervalometer TB01 is determined according to described random back parameter information.

403, when public enhancing dedicated channel or Physical Random Access Channel, obtaining to catch, instruction channel detects that negative acknowledgment indicates.

404, start described random back intervalometer.

405, after the cut-off of described random back intervalometer, perform degree of adhering to inspection.

406, degree of adhering to inspection, by rear, initiates Stochastic accessing in public enhancing dedicated channel or Physical Random Access Channel.

A kind of accidental access method that present aspect embodiment provides, after adopting the deadline determining random back intervalometer according to described random back parameter, start random back intervalometer TB01, wherein the deadline of intervalometer TB01 can be dynamically adjustable according to different network environments and type of service, after intervalometer TB01 ends, re-execute degree of adhering to checking process；Degree of adhering to inspection, by rear, enters physical layer random access procedure.The method can according to state concrete for UE or service conditions etc., adjust the deadline of random back intervalometer TB01, overcome in prior art and generally can not upgrade in time according to load or network interferences situation, when may result in light load, UE remains a need for keeping out of the way for a long time, the problem adding access delay.

Embodiment five

The embodiment of the present invention provides a kind of method of Stochastic accessing, is mainly used in supporting the UE that PRACH accesses in the method, it is also possible to be applied in the commonE-DCH UE accessed.UE is when PRACH accesses, AICH receives NACK(and NACKINAICH), represent that network side is current very busy, then exit current physical layer Stochastic accessing, but, in order to improve the success rate of Stochastic accessing, random access procedure generally includes: Medium Access Layer circulation (MACcycle) and the soaring two parts of physical layer Stochastic accessing, execution physical layer Stochastic accessing is soaring reaches maximum times but without receiving ACK or NACKinAICH, or on AICH, receive NACK, then exit physical layer random access procedure；If current Stochastic accessing MAC cycle-index does not arrive the upper limit, then UE also has an opportunity again to initiate Stochastic accessing, can be specifically add 1 by MAC cycle-index, again Stochastic accessing is initiated, until MAC cycle-index reaches maximum, but without ACKinAICH being detected, then it is assumed that random access failure.

UE checks NACKinAICH when PRACH accesses, then exit physical layer random access procedure, if MAC layer Stochastic accessing cycle-index is not reaching to the maximum configured, then UE performs a kind of accidental access method that the embodiment of the present invention provides, namely after degree of adhering to checks intervalometer T2 cut-off, random back intervalometer TB01 is started, wherein the deadline of intervalometer TB01 can be dynamically adjustable according to different network environments and type of service, after intervalometer TB01 ends, re-execute degree of adhering to checking process；Degree of adhering to inspection, by rear, enters physical layer random access procedure.Thus overcoming the value of intervalometer TB01 in prior art is [NB01min, NB01max] random number that randomly generates, this scope [NB01min, NB01max] configured by SIB5, generally can not upgrade in time according to load or network interferences situation, when may result in light load, UE remains a need for keeping out of the way for a long time, the problem adding access delay.

Being the concrete operations explanation of present aspect embodiment as follows, as shown in Figure 5 a, the method is as described below.

501, receive the random back parameter information that the network equipment sends.

Wherein, the described network equipment can be base station or radio network controller (RNC).

502, according to the random back parameter information received, it is determined that the deadline of random back intervalometer.

503, UE receive when public enhancing dedicated channel or Physical Random Access Channel, negative acknowledgment instruction (NACK) detected obtaining to catch on instruction channel.

Optionally, degree of adhering to inspection is first carried out before 500, UE Stochastic accessing can also being included before 503.For the ease of distinguishing, this degree of adhering to inspection is properly termed as " first time degree of adhering to inspection ", and degree of adhering to inspection, by rear, start degree of adhering to and checks intervalometer T2, simultaneously initiating random access procedure；UE detects current commonE-DCH and accesses or receive NACK instruction in PRACH access, and namely UE performs 503.

Preferably, if receiving NACK instruction when current commonE-DCH accesses or PRACH accesses, 504 are performed, it is judged that whether MAC Stochastic accessing cycle-index reaches the maximum of configuration, if not arriving the maximum of configuration, then performs 505, UE and will perform random back.

Wherein, in 505, UE is by performing the concrete operations of random back, as shown in Figure 5 b, specifically includes: A01 starts random back intervalometer TB01；Wherein, obtain in 502 the deadline of random back intervalometer TB01.

Wherein, degree of adhering to checks that intervalometer T2 is for controlling the interval that double degree of adhering to checks, the value of T2 is generally 10ms, and the numeral illustrated in the embodiment of the present invention shall not be interpreted as the restriction to the embodiment of the present invention, and is for only for ease of the citing understanding the embodiment of the present invention.Degree of adhering to inspection can be that UE is [0,1] random number is produced between, if this random number adheres to angle value less than what network side configured, then think that degree of adhering to inspection is passed through, otherwise it is assumed that degree of adhering to inspection failure, after the 10ms of waiting timer T2, and after the time in waiting timer TB01, then perform degree of adhering to inspection.

The deadline of the random back intervalometer TB01 determined in 502, can be specifically the UE random back parameter information receiving that network equipment sends, it is determined that the deadline of TB01.

Wherein, UE receives network equipment and sends random back parameter information, can be specifically that UE reads information in SIB7 in real time, thus obtaining the configuration parameter about intervalometer TB01.Described random back parameter information specifically may is that dynamically degree of adhering to grade (as dynamically degree of adhering to grade is 8 grades of 1 to 8, namely dynamically degree of adhering to grade is 8 grades of [1,2,3,4,5,6,7,8])；Or, random back parameter information is type of service and the mapping table of the random back factor；Or, random back parameter information is priority of logical channels and the mapping table of the random back factor；Or random back parameter information is access grade AC or the mapping table of access service grade and the random back factor.

Preferably, when random back parameter information is type of service and the mapping table of the random back factor.

Determine the deadline of random back intervalometer according to described random back parameter in 502, specifically include: determine that described user terminal triggers the type of service of Stochastic accessing, described type of service is conversation class calling, Streaming Media calls, interactive class calls, call with background classes, CCCH (CCCH, CommonControlChannel), DCCH (DCCH, DedicatedControlChannel), at least one in Dedicated Traffic Channel (DTCH, DedicatedTrafficChannel)；Type of service according to described user terminal triggering Stochastic accessing determines the deadline of random back intervalometer from described mapping table.

Preferably, when random back parameter information is priority of logical channels and the mapping table of random back factor N.

Determine the deadline of random back intervalometer in 502 according to described random back parameter, specifically include: determine the priority of logical channels that the business of described user terminal triggering Stochastic accessing is corresponding；Trigger the priority of logical channels corresponding to type of service of Stochastic accessing according to described user terminal from described mapping table, determine the deadline of random back intervalometer.

Such as: when UE is in IDLE state, or _ FACH state, or URA_PCH state, or CELL_FACH state, the Stochastic accessing that any of which state triggers, to circuit switching (CS, CircuitSwitched) business and packet switch (PS, PacketSwitched) the intervalometer TB01 spreading factor N that the Stochastic accessing that business triggers is corresponding different, here spreading factor N is called for random back spreading factor, and wherein CS or PS business is predefined or configurable with the corresponding relation of TB01 spreading factor.Therefore, UE is according to triggering type of service and the type of service of Stochastic accessing and obtaining random back spreading factor with the mapping relations moving back spreading factor at random, thus further determining that the random back time.

When UE is in IDLE state, or _ FACH state, or URA_PCH state, or CELL_FACH state, the Stochastic accessing that in any of which, state triggers, conversation class is called the corresponding different TB01 spreading factor N such as (ConversationalCall), Streaming Media calling (StreamingCall), interactive class calling (InteractiveCall), background classes calling (BackgroundCall), i.e. random back spreading factor N, wherein type of service is predefined or configurable with the corresponding relation of intervalometer TB01 spreading factor.Therefore, UE is according to triggering type of service and the type of service of Stochastic accessing and obtaining random back spreading factor with the mapping relations moving back spreading factor at random, thus further determining that the random back time.

When UE is in CELL_FACH state, priority to Different Logic channel, can corresponding different TB01 spreading factor N, wherein priority of logical channels (or logical channel type, CCCH, DCCH, DTCH for example) is predefined or configurable with the corresponding relation of intervalometer TB01 spreading factor.Therefore, UE is according to triggering priority of logical channels and the priority of logical channels of Stochastic accessing and obtaining random back spreading factor with the mapping relations moving back spreading factor at random, thus further determining that the random back time.

When UE is main calling or during for called, it is possible to corresponding different TB01 spreading factor, wherein main calling or to be exhaled with the corresponding relation of TB01 spreading factor be predefined or configurable.Therefore, main calling is presently in knowing for UE, or during called, it is possible to according to the main calling of storage or exhaled and the corresponding relation of TB01 spreading factor, gets corresponding random back spreading factor.

When the mapping table that random back parameter information is access grade (AC) and random back factor N, or or the mapping table that random back parameter information is access service grade (ASC) and random back factor N, initiate the user terminal of Stochastic accessing according to belonging access grade or access service grade and described mapping table, it is determined that the corresponding random back factor.It will be appreciated that, for different access terminals, its terminal self is have the access grade of correspondence, such as: the access grade for domestic consumer can be divided into the 0th to the 9th grade, user terminal for government department, fire-fighting part and medial section, its access grade can be divided into the 10th to the 15th grade, and grade more high priority is more high.The terminal mapping table according to belonging access grade and access grade AC and random back factor N, it is determined that the corresponding random back factor, the time of the user terminal random back that access grade is more high can be relatively fewer, it is simple to accesses in time.Access service grade (ASC) and access grade (AC) have mapping relations, and such as AC 0～9 is mapped to ASC to be 2, AC be 11 to be mapped to ASC be 1 etc..

UE gets the configuration parameter about intervalometer TB01, can be specifically the intervalometer TB01 spreading factor of described above, the spreading factor according to intervalometer TB01, obtains the deadline of TB01.Concrete operations include: UE about the scope of the deadline of intervalometer TB01 arranges value in (can be specifically SIB5) when initially residing in community in read system message, i.e. [NB01min, NB01max]；After UE gets the spreading factor N of intervalometer TB01, UE recalculates the scope of the deadline of intervalometer TB01, can be specifically [NB01min, NB01max=10*2N], namely the minima of scope is constant, remaining NB01min, the maximum (NB01max) of scope is changed to 10*2N；UE randomly chooses a number in scope [NB01min, NB01max=10*2N], and as the deadline of intervalometer TB01, wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point；Or, UE about the scope of the deadline of intervalometer TB01 arranges value in (can be specifically SIB5) when initially residing in community in read system message, i.e. [NB01min, NB01max]；UE randomly chooses a numerical value in scope [NB01min, NB01max]；Being multiplied with 2N by this numerical value, the result being multiplied is as the deadline of intervalometer TB01, and wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point；Or, the scope of the deadline of the intervalometer TB01 that (can be specifically SIB5) obtains in system message according to reading, by constant for the maximum of scope, the minima of scope is set to 10*2N, randomly chooses a number in this new range, deadline as intervalometer TB01, wherein, N is the random back factor, wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point.

A02, after random back intervalometer TB01 ends, performs degree of adhering to inspection；

After performing 505 waiting time randomizations, UE performs 506, when, after degree of adhering to inspection success, again performing PRACH access or commonE-DCH accesses.Concrete it may be that after random back intervalometer TBO1 cut-off, perform degree of adhering to inspection, degree of adhering to inspection by rear UE on prach, or sends leading (preamble) again on commonE-DCH.

Embodiment six

The embodiment of the present invention provides a kind of accidental access device, and this accidental access device can be UE, and as shown in Figure 6 a, this accidental access device includes: detection unit 601, the first judging unit 602, and transmitting element 602.

Detection unit 601, for detecting, when public enhancing dedicated channel accesses, the instruction returning back to Physical Random Access Channel.

First judging unit 602, for judging that whether the last transmitting power parameter leading in the access transmission of described public enhancing dedicated channel be more than threshold parameter.

Transmitting element 603, if for the described last transmitting power parameter leading in the access transmission of described public enhancing dedicated channel more than threshold parameter, sending leading with the power that described threshold parameter is corresponding at Physical Random Access Channel.

A kind of accidental access device that the embodiment of the present invention provides, UE is after commonE-DCH access failure, when returning to PRACH access, first determine whether to send leading transmitting power for the last time when commonE-DCH accesses whether more than threshold power, if greater than threshold power, then send leading with threshold power at PRACH.The UE interference to other user of community can be reduced.

Preferably, when transmitting power parameter is transmitting power.

First judging unit 602, specifically for judging that whether the last transmitting power leading in the access transmission of public enhancing dedicated channel be more than threshold power.

Transmitting element 603, if accessing the leading transmitting power of transmission more than threshold power specifically for last in public enhancing dedicated channel, sends leading with described threshold power at Physical Random Access Channel.

Preferably, transmitting element 603, if being additionally operable to access the leading transmitting power of transmission in public enhancing dedicated channel to be for the last time not more than threshold power, send leading with the described last transmitting power leading in the access transmission of public enhancing dedicated channel at Physical Random Access Channel.

UE is after commonE-DCH access failure, when returning to PRACH access, can first determine whether to send leading transmitting power for the last time when commonE-DCH accesses whether more than threshold power, if greater than threshold power, then send leading with threshold power at PRACH.The UE interference to other user of community can be reduced.

Preferably, when transmitting power parameter is send leading number of times.

First judging unit 602, specifically for judging that accessing the leading number of times of transmission in public enhancing dedicated channel for the last time is the Z time, if more than threshold number M.

Transmitting element 603, if being the Z time specifically for accessing the leading number of times of transmission in public enhancing dedicated channel for the last time, more than M, sends leading with the power that described threshold number is corresponding at Physical Random Access Channel.

Preferably, transmitting element 602, it is additionally operable to judge last access in public enhancing dedicated channel that to send leading number of times be the Z time, is not more than threshold number M, last access in public enhancing dedicated channel that to send leading transmitting power leading in Physical Random Access Channel transmission with described.

UE is after commonE-DCH access failure, when returning to PRACH access, it is possible to first determine whether, when commonE-DCH access failure, whether to send leading number of times more than threshold number, if greater than threshold number, then send leading with the transmitting power that threshold number is corresponding at PRACH.The UE interference to other user of community can be reduced.

Preferably, as shown in Figure 6 b, detection unit 601 includes: send pilot unit 6011, sends power ramp unit 6012, and receives unit 6013.

Described transmission pilot unit 6011, for when public enhancing dedicated channel accesses, sending leading to network equipment.

Described transmission power ramp unit 6012, during for being both not detected by just confirming to indicate also without detection negative acknowledgment instruction on AICH channel, sends leading to network equipment with the transmitting power after soaring.

Described reception unit 6013, is obtaining, for receiving network equipment, the negative acknowledgment (NACK) catching instruction channel transmission, is then returning back to Physical Random Access Channel and access.

Embodiment seven

The embodiment of the present invention provides a kind of accidental access device, this accidental access device can be UE, as shown in Figure 7, this accidental access device includes: first receives unit 701, acquisition unit deadline 702, the first detection unit 703, start unit 704, degree of adhering to detection unit 705, and access unit 706.

First receives unit 701, for receiving the random back parameter information that the network equipment sends.Wherein, the described network equipment can be base station or radio network controller (RNC).

Acquisition unit deadline 702, for determining the deadline of random back intervalometer according to described random back parameter information.

First detection unit 703, for when public enhancing dedicated channel or Physical Random Access Channel, detecting that negative acknowledgment indicates obtaining to catch on instruction channel.

Start unit 704, is used for starting described random back intervalometer.

Degree of adhering to detection unit 705, after ending for described random back intervalometer, performs degree of adhering to inspection.

Access unit 706, is used for degree of adhering to inspection by rear, initiates Stochastic accessing in public enhancing dedicated channel or Physical Random Access Channel.

A kind of accidental access device that present aspect embodiment provides, after adopting the deadline determining random back intervalometer according to described random back parameter, start random back intervalometer TB01, wherein the deadline of intervalometer TB01 can be dynamically adjustable according to different network environments and type of service, after intervalometer TB01 ends, re-execute degree of adhering to checking process；Degree of adhering to inspection, by rear, enters physical layer random access procedure.The method can according to state concrete for UE or service conditions etc., adjust the deadline of random back intervalometer TB01, overcome in prior art and generally can not upgrade in time according to load or network interferences situation, when may result in light load, UE remains a need for keeping out of the way for a long time, the problem adding access delay.

Preferably, described random back parameter information is specially dynamically degree of adhering to grade point.

Preferably, described random back parameter information is type of service and the mapping table of the random back factor.

Acquisition unit deadline 702, specifically for determining that described user terminal triggers the type of service of Stochastic accessing, described type of service is conversation class calling, and Streaming Media calls, interactive class calls, call with background classes, CCCH (CCCH, CommonControlChannel), DCCH (DCCH, DedicatedControlChannel), at least one in Dedicated Traffic Channel (DTCH, DedicatedTrafficChannel)；Type of service according to described user terminal triggering Stochastic accessing determines the deadline of random back intervalometer from described mapping table.

Preferably, stating random back parameter information is priority of logical channels and the mapping table of the random back factor.

Obtain unit 702 deadline, specifically for determining that described user terminal triggers the priority of logical channels that the business of Stochastic accessing is corresponding；Trigger the priority of logical channels corresponding to type of service of Stochastic accessing according to described user terminal, from described mapping table, determine the deadline of random back intervalometer.

Preferably, when random back parameter information is access grade or the mapping table of access service grade and the random back factor.

Described acquisition unit deadline, determines the deadline of random back intervalometer specifically for the access grade according to described user terminal or access service grade from described mapping table.

Preferably, acquisition unit deadline 702, specifically for the scope of the deadline according to the intervalometer TB01 obtained in system message, in described scope, randomly generate a numerical value, by described numeral and 2^NBeing multiplied, the result being multiplied is as the deadline of intervalometer TB01, and wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point；Or, specifically for the scope of the deadline according to the intervalometer TB01 obtained in the system message read, by constant for the minima of scope, the maximum of scope is set to 10*2^N, in this new range, randomly choose a number, as the deadline of intervalometer TB01, wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point；Or, specifically for the scope of the deadline according to the intervalometer TB01 obtained in the system message read, by constant for the maximum of scope, the minima of scope is set to 10*2^N, in this new range, randomly choose a number, as the deadline of intervalometer TB01, wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point.

Embodiment seven

The embodiment of the present invention provides a kind of accidental access device, and as shown in Figure 8, this device includes: processor 801 and transmitter 802；

Described processor 801, for detecting, when public enhancing dedicated channel accesses, the instruction returning back to Physical Random Access Channel；For judging that whether the last transmitting power parameter leading in the access transmission of described public enhancing dedicated channel be more than threshold parameter,

Described transmitter 802, if for the described last transmitting power parameter leading in the access transmission of described public enhancing dedicated channel more than threshold parameter, sending leading with the power that described threshold parameter is corresponding at Physical Random Access Channel.

Preferably, described transmitting power parameter is transmitting power；

Described processor 801, specifically for judging that whether the last transmitting power leading in the access transmission of public enhancing dedicated channel be more than threshold power；

Described transmitter 802, if accessing the leading transmitting power of transmission more than threshold power specifically for last in public enhancing dedicated channel, sends leading with described threshold power at Physical Random Access Channel.

Preferably, described transmitter 802, if being additionally operable to access the leading transmitting power of transmission in public enhancing dedicated channel to be for the last time not more than threshold power, send leading with the described last transmitting power leading in the access transmission of public enhancing dedicated channel at Physical Random Access Channel.

Preferably, described transmitting power parameter is send leading number of times,

Described processor 801, specifically for judging that accessing the leading number of times of transmission in public enhancing dedicated channel for the last time is the Z time, if more than threshold number M；

Described transmitter 802, if being the Z time specifically for accessing the leading number of times of transmission in public enhancing dedicated channel for the last time, more than M, sends leading with the power that described threshold number is corresponding at Physical Random Access Channel.

Preferably, described transmitter 801, it is additionally operable to judge last access in public enhancing dedicated channel that to send leading number of times be the Z time, is not more than threshold number M, last access in public enhancing dedicated channel that to send leading transmitting power leading in Physical Random Access Channel transmission with described.

Preferably, described transmitter 802, it is additionally operable to, when public enhancing dedicated channel accesses, send leading to network equipment；

Described processor 801, when being additionally operable to both be not detected by just confirming to indicate also without detection negative acknowledgment instruction on AICH channel, sends leading to network equipment with the transmitting power after soaring；

Described accidental access device also includes: receptor 803, is obtaining, for receiving network equipment, the negative acknowledgment (NACK) catching instruction channel transmission, is then returning back to Physical Random Access Channel and access.

Embodiment nine

The embodiment of the present invention provides a kind of accidental access device, as it is shown in figure 9, this device includes；

Receptor 901, for receiving the random back parameter information that the network equipment sends；

Processor 902, for determining the deadline of random back intervalometer according to described random back parameter information；For when public enhancing dedicated channel or Physical Random Access Channel, instruction channel detecting that negative acknowledgment indicates obtaining to catch；For starting described random back intervalometer；After ending for described random back intervalometer, perform degree of adhering to inspection；For degree of adhering to inspection by rear, initiate Stochastic accessing in public enhancing dedicated channel or Physical Random Access Channel.

Preferably, described random back parameter information is type of service and the mapping table of the random back factor；

Described processor 902, is additionally operable to determine the type of service that described user terminal triggers Stochastic accessing；Type of service according to described user terminal triggering Stochastic accessing determines the deadline of random back intervalometer from described mapping table

Preferably, stating random back parameter information is priority of logical channels and the mapping table of the random back factor；

Described processor 902, is additionally operable to determine that described user terminal triggers the priority of logical channels that the business of Stochastic accessing is corresponding；Trigger the priority of logical channels corresponding to type of service of Stochastic accessing according to described user terminal, from described mapping table, determine the deadline of random back intervalometer.

Preferably, described random back parameter information is access grade or the mapping table of access service grade and the random back factor；

Described processor 902, is additionally operable to the access grade according to described user terminal or access service grade and determines the deadline of random back intervalometer from described mapping table.

Preferably, described processor 902, it is additionally operable to according to the scope of the deadline of the intervalometer TB01 of acquisition in system message, a numerical value is randomly generated in described scope, described numeral being multiplied with 2N, the result being multiplied is as the deadline of intervalometer TB01, wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point；

Those skilled in the art is it can be understood that arrive, for convenience and simplicity of description, only it is illustrated with the division of above-mentioned each functional module, in practical application, as desired above-mentioned functions distribution can be completed by different functional modules, it is divided into different functional modules, to complete all or part of function described above by the internal structure of device.The specific works process of the system of foregoing description, device and unit, it is possible to reference to the corresponding process in preceding method embodiment, do not repeat them here.

In several embodiments provided herein, it should be understood that disclosed system, apparatus and method, it is possible to realize by another way.Such as, device embodiment described above is merely schematic, such as, the division of described module or unit, being only a kind of logic function to divide, actual can have other dividing mode when realizing, for instance multiple unit or assembly can in conjunction with or be desirably integrated into another system, or some features can ignore, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be through INDIRECT COUPLING or the communication connection of some interfaces, device or unit, it is possible to be electrical, machinery or other form.

The described unit illustrated as separating component can be or may not be physically separate, and the parts shown as unit can be or may not be physical location, namely may be located at a place, or can also be distributed on multiple NE.Some or all of unit therein can be selected according to the actual needs to realize the purpose of the present embodiment scheme.

It addition, each functional unit in each embodiment of the application can be integrated in a processing unit, it is also possible to be that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, it would however also be possible to employ the form of SFU software functional unit realizes.

If described integrated unit is using the form realization of SFU software functional unit and as independent production marketing or use, it is possible to be stored in a computer read/write memory medium.Based on such understanding, part or all or part of of this technical scheme that prior art is contributed by the technical scheme of the application substantially in other words can embody with the form of software product, this computer software product is stored in a storage medium, including some instructions with so that a computer equipment (can be personal computer, server, or the network equipment etc.) or processor (processor) perform all or part of step of method described in each embodiment of the application.And aforesaid storage medium includes: the various media that can store program code such as USB flash disk, portable hard drive, read only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc or CDs.

The above, above example is only in order to be described in detail the technical scheme of the application, but the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention, should not be construed as limitation of the present invention.Those skilled in the art in the technical scope that the invention discloses, the change that can readily occur in or replacement, all should be encompassed within protection scope of the present invention.

Claims

1. the method for a Stochastic accessing, it is characterised in that described method includes:

2. method according to claim 1, it is characterized in that, described transmitting power parameter is transmitting power, described judgement accesses in public enhancing dedicated channel for the last time and whether sends leading transmitting power parameter more than threshold parameter, if last access in public enhancing dedicated channel sends leading transmitting power parameter more than threshold parameter, send leading with the power that described threshold parameter is corresponding at Physical Random Access Channel, specifically include:

3. method according to claim 2, it is characterised in that described method also includes:

4. method according to claim 1, it is characterised in that described transmitting power parameter is send leading number of times,

5. method according to claim 4, it is characterised in that described method also includes:

6. the method according to any one of claim 2 or 4, it is characterised in that described detect that the instruction returning back to Physical Random Access Channel includes when public enhancing dedicated channel accesses:

Send leading to network equipment with the transmitting power after soaring；

7. an accidental access device, it is characterised in that described device includes: detection unit, the first judging unit, and transmitting element；

8. device according to claim 7, it is characterised in that described transmitting power parameter is transmitting power；

9. device according to claim 8, it is characterised in that

Described transmitting element, if being additionally operable to access the leading transmitting power of transmission in public enhancing dedicated channel to be for the last time not more than threshold power, send leading with the described last transmitting power leading in the access transmission of public enhancing dedicated channel at Physical Random Access Channel.

10. device according to claim 7, it is characterised in that described transmitting power parameter is send leading number of times,

11. device according to claim 10, it is characterised in that

Described transmitting element, it is additionally operable to judge that last is the Z time at the public enhancing dedicated channel access leading number of times of transmission, it is not more than threshold number M, sends leading with the described last transmitting power leading in the access transmission of public enhancing dedicated channel at Physical Random Access Channel.

12. the device described according to Claim 8 or 10 any one, it is characterised in that described detection unit includes: send pilot unit, send power ramp unit, and receive unit；

13. an accidental access method, it is characterised in that described method includes:

Start described random back intervalometer；

14. method according to claim 13, it is characterised in that described random back parameter information is specially dynamically degree of adhering to grade point.

15. method according to claim 13, it is characterised in that described random back parameter information is type of service and the mapping table of the random back factor；

16. method according to claim 13, it is characterised in that described random back parameter information is priority of logical channels and the mapping table of the random back factor；

17. method according to claim 13, it is characterised in that described random back parameter information is access grade and the mapping table of the random back factor, or, described random back parameter information is access service grade and the mapping table of the random back factor；

From described mapping table, the deadline of random back intervalometer is determined according to the described access grade according to described user terminal or access service grade.

18. method according to any one in claim 14 to 17, it is characterised in that the described deadline determining random back intervalometer according to described random back parameter, specifically include:

19. an accidental access device, it is characterised in that described device includes: first receives unit, obtains unit deadline, the first detection unit, start unit, degree of adhering to detection unit, and access unit；

20. device according to claim 19, it is characterised in that described random back parameter information is specially dynamically degree of adhering to grade point.

21. device according to claim 19, it is characterised in that described random back parameter information is type of service and the mapping table of the random back factor；

22. device according to claim 19, it is characterised in that stating random back parameter information is priority of logical channels and the mapping table of the random back factor；

23. device according to claim 19, it is characterised in that described random back parameter information is access grade and the mapping table of the random back factor, or, described random back parameter information is access service grade and the mapping table of the random back factor；

24. device according to any one in claim 20 to 23, it is characterized in that, described acquisition unit deadline, specifically for the scope of the deadline according to the intervalometer TB01 obtained in system message, a numerical value is randomly generated, by described numeral and 2 in described scope^NBeing multiplied, the result being multiplied is as the deadline of intervalometer TB01, and wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point；

25. an accidental access device, it is characterised in that including:

26. device according to claim 25, it is characterised in that described transmitting power parameter is transmitting power；

27. device according to claim 25, it is characterised in that

28. device according to claim 25, it is characterised in that described transmitting power parameter is send leading number of times,

29. device according to claim 28, it is characterised in that

Described transmitter, it is additionally operable to judge that last is the Z time at the public enhancing dedicated channel access leading number of times of transmission, it is not more than threshold number M, sends leading with the described last transmitting power leading in the access transmission of public enhancing dedicated channel at Physical Random Access Channel.

30. according to the device described in any one of claim 26 or 28, it is characterised in that

Described transmitter, is additionally operable to, when public enhancing dedicated channel accesses, send leading to network equipment；

31. an accidental access device, it is characterised in that include；

32. device according to claim 31, it is characterised in that described random back parameter information is specially dynamically degree of adhering to grade point.

33. device according to claim 31, it is characterised in that described random back parameter information is type of service and the mapping table of the random back factor；

Described processor, is additionally operable to determine the type of service that described user terminal triggers Stochastic accessing；Type of service according to described user terminal triggering Stochastic accessing determines the deadline of random back intervalometer from described mapping table.

34. device according to claim 31, it is characterised in that stating random back parameter information is priority of logical channels and the mapping table of the random back factor；

35. device according to claim 31, it is characterised in that described random back parameter information is access grade and the mapping table of the random back factor, or, random back parameter information is access service grade and the mapping table of random back factor N；

Described processor, is additionally operable to the access grade according to described user terminal or access service grade, determines the deadline of random back intervalometer from described mapping table.

36. device according to any one in claim 32 to 35, it is characterised in that described processor, it is additionally operable to, according to the scope of the deadline of the intervalometer TB01 of acquisition in system message, in described scope, randomly generate a numerical value, by described numeral and 2^NBeing multiplied, the result being multiplied is as the deadline of intervalometer TB01, and wherein, N is the random back factor, or N is described dynamically degree of adhering to grade point；