CN102548012B - A kind of accidental access method and terminal - Google Patents
A kind of accidental access method and terminal Download PDFInfo
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- CN102548012B CN102548012B CN201010602025.0A CN201010602025A CN102548012B CN 102548012 B CN102548012 B CN 102548012B CN 201010602025 A CN201010602025 A CN 201010602025A CN 102548012 B CN102548012 B CN 102548012B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
- H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
- H04W74/085—Random access procedures, e.g. with 4-step access with collision treatment collision avoidance
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Abstract
The invention discloses a kind of accidental access method, after end-probing to random access failure, setting time is waited to initiate random access again.The present invention also accordingly discloses a kind of terminal.Through the invention, terminal is after random access failure, it can wait for a period of time and re-initiate random access again, so as to avoid in the case where radio resource overloads, as terminal frequently re-initiate random access and caused by radio resource it is nervous, also, it can make the unit time that the terminal quantity equalization into network be inscribed using the present invention, so as to improve the success rate of random access.
Description
Technical field
The present invention relates to mobile communication field more particularly to a kind of accidental access method and terminals.
Background technique
Person to person communicates (Human to Human, H2H) and refers to that people is communicated by the operation to equipment, existing wireless
The communication technology is that the Communication Development based on H2H is got up, and machine and machine communication (Machine to Machine, M2M) are wide
Definition in justice is using machine terminal intelligent interaction as core, application and the service of networking, it is whole based on intelligence machine
End is the informatization resolve scheme that provides of client using communication as access means, for meeting client to monitoring, refer to
Wave the information system requirement of scheduling, data acquisition and measurement etc..
An important factor for development of wireless technology is M2M market development, it breaches the space-time limitation of conventional communication mode
With region obstacle, make enterprise and the public get rid of cable constraint, allow client more effectively control cost, reduce mounting cost and
It is easy to use.In addition, growing demand driving M2M constantly advance, with information processing capability and Netowrk tape
Wide constantly to increase paradoxically, the means of acquisition of information lag far behind, and M2M meets this demand of people well,
External environment can be monitored in real time by technology people, realize the information collection of a wide range of automation.Therefore, M2M can be answered
For fields such as industrial application, domestic applications, individual applications, in industry application field using for example: traffic monitoring, alarm system
System, rescue at sea, automatic vending machine, payment etc. of driving, in domestic application domain using for example: automatic data logging, temperature control
Deng in individual application field using for example: life detection, remote diagnostics etc..
The communication object of M2M is Machine To Machine or Human-to-Machine, the data communication definition between one or more machines
Join for machine type communication (Machine Type Communication, MTC) in this case less need for human-computer interaction
With the machine of MTC, it is defined as MTC device (MTC device, MD).MTC device is the terminal of MTC user, can pass through public land
Ground mobile telephone network (Public Land MobileNetwork, PLMN) network is communicated with MTC device, MTC server.
After introducing M2M application, some optimizations can be carried out to existing system according to its feature, to meet M2M application demand,
And the common H2H equipment in existing system is not had an impact.Some distinguishing features of M2M application include: MTC device quantity
It is huge, the remote super existing H2H equipment of quantity；Data transmission is regular, and the data volume transmitted every time is small；The mobility of MTC device
Lower, substantial portion of MTC device does not move.
When MTC device accesses network, need to initiate random access, Fig. 1 is the long term evolution (Long according to the relevant technologies
Term Evolution, LTE) flow chart of random access procedure competition-based in system, as shown in Figure 1, being based in LTE
The random access procedure of competition mainly includes following four step:
Step 102: user equipment (User Equipment, UE) randomly chooses a lead code (Preamble), in object
It is sent in reason random access channel (Physical Random Access Channel, PRACH).
Step 104: base station (eNB) after having detected that Preamble code is sent, downlink sends random access response
(Random Access Response, RAR) generally comprises following information in the random access response: being received
The number of Preamble code, the corresponding time adjustment amount of the Preamble code received, the ascending resource position for the terminal distribution
Set instruction information, interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Temporary Cell Radio Network Temporary
Identifier, Temporary C-RNTI) distribution.
Step 106:UE, according to its instruction, sends uplink on the ascending resource of distribution after receiving random access response
Message.The upstream message is also known as Message 3 (Msg3), wherein at least should include: the unique identification (TMSI) of the terminal or
Person's random identification (Random ID), and establish reason (Establishment Cause).
Step 108: base station receives the upstream message of UE, and returns to contention resolution message to the UE being successfully accessed
(Contention Resolution, also known as Msg4).Disappear if UE receives this before Conflict solving timer expiry
Breath, and unpacked and confirm that the Msg4 is the desired Msg4 of UE, it is determined that this time random access procedure success；Otherwise can not determine
Function, UE re-initiate random access.UE re-initiates random access needs and restarts from step 102.
When the number that user equipment sends lead code is more than maximum transmission times (preambleTransMax), that is, before sending
When the number of leading code is equal to preambleTransMax+1, this random access failure.Since the random access of LTE system is in matchmaker
Body access layer (Medium Access Control, MAC) is implemented, and after random access failure, MAC layer is needed to user equipment
Upper layer notify failure.If still there is the demand of initiation business on the upper layer of user equipment, can trigger MAC layer initiate again with
Machine access.
It is the initiation that business is controlled by people, release before no introducing MTC device.It needs to initiate business in user
When, user equipment can continuously initiate random access until random access is successful, if continuous several times random access failure, user
The connection request of business may be terminated.But after introducing MTC device, due to the participation of nobody, when MTC device has number
According to the initiation random access that when needing to send (when needing to initiate business), MTC device will continue until data send successfully, from
And when large number of MTC device needs to access network simultaneously and sends data or carry out location area updating, it will lead to wireless money
Source is in overload, and the random access for causing MTC device to be initiated will fail, also, due to the continual initiation of MTC device
Random access is incited somebody to action prevent network is from smoothly restoring.
Summary of the invention
In view of this, being able to solve random the main purpose of the present invention is to provide a kind of accidental access method and terminal
In access procedure, great amount of terminals is persistently initiated the problem of random access leads to network over loading, cannot smoothly restore, and is improved random
The success rate of access.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of accidental access method, comprising: after terminal random access failure, setting time is waited to initiate random access again.
The setting time is obtained according to the waiting time length that agreement is made an appointment, alternatively, carrying according to system message
Waiting time length obtain.
The waiting time length that the waiting time length or system message that the agreement is made an appointment carry are as follows: according to terminal
The priority, and/or terminal originating service of type, and/or terminal PRI, and/or terminal originating service whether allow postpone,
And/or group belonging to terminal, and/or TerminalAccessClass, and/or terminal roaming situation, setting it is corresponding waiting for a long time
Degree,
The terminal obtains setting time are as follows: terminal is according to itself terminal type, and/or terminal PRI, and/or end
Hold initiation business priority, and/or terminal originating service whether allow group belonging to time delay, and/or terminal, and/or
The information such as TerminalAccessClass, and/or terminal roaming situation, vlan query protocol VLAN agreement or system message carry waiting for a long time
Degree, using the waiting time length value of the acquisition as setting time.
In the case that terminal selects cell again after random access failure, what the foundation system message carried etc.
Setting time is obtained to time span are as follows: the waiting time length carried according to new cell system message obtains setting time.
The terminal is that machine type communication MTC device and/or person to person communicate H2H equipment.
The waiting time length that the system message carries is that network side is loaded according to random access or core net is set
The waiting time length of access restriction demand setting.
A kind of terminal, for waiting setting time to initiate random access again after random access failure.
The setting time is obtained by the waiting time length that terminal is made an appointment according to agreement, alternatively, by terminal foundation
The waiting time length that system message carries obtains.
The waiting time length or system message that agreement based on the terminal acquisition setting time is made an appointment carry
Waiting time length are as follows: according to the priority of terminal type, and/or terminal PRI, and/or terminal originating service, and/or
Whether terminal originating service allows group, and/or TerminalAccessClass, and/or terminal roaming feelings belonging to delay, and/or terminal
Condition, the corresponding waiting time length of setting,
The terminal obtains setting time are as follows: terminal is according to itself terminal type, and/or terminal PRI, and/or end
Hold initiation business priority, and/or terminal originating service whether allow group belonging to time delay, and/or terminal, and/or
The information such as TerminalAccessClass, and/or terminal roaming situation, vlan query protocol VLAN agreement or system message carry waiting for a long time
Degree, using the waiting time length value of the acquisition as setting time.
In the case where selecting cell again after random access failure, what the terminal foundation system message carried etc.
Setting time is obtained to time span are as follows: the waiting time length carried according to new cell system message obtains setting time.
The terminal is MTC device and/or H2H equipment.
The present invention provides a kind of accidental access method and terminal, after end-probing to random access failure, when waiting setting
Between initiate random access again.Through the invention, terminal is after random access failure, and waiting for a period of time, it is random to re-initiate again
Access, so as to avoid causing in the case where radio resource is overloaded since terminal frequently re-initiates random access
Radio resource it is nervous, also, can make the unit time that the terminal quantity equalization into network be inscribed using the present invention, so as to
Enough improve the success rate of random access.
Detailed description of the invention
Fig. 1 is the flow chart according to random access procedure competition-based in the LTE system of the relevant technologies；
Fig. 2 is accidental access method flow diagram of the present invention；
Fig. 3 is the flow diagram that MTC device (referred to as MD1) accesses network in the embodiment of the present invention 1.
Specific embodiment
The basic idea of the invention is that: after end-probing to random access failure, setting time is waited to initiate to connect at random again
Enter.
Fig. 2 is accidental access method flow diagram of the present invention, as shown in Fig. 2, this method comprises:
Step 201: terminal random access failure.
Step 202: after terminal waits setting time, initiating random access again.
Here, the waiting time length that the setting time can be made an appointment by terminal according to agreement obtains, can also be with
It is obtained by the waiting time length that terminal is carried according to system message.
The agreement makes an appointment waiting time length can be with are as follows: agreement is made an appointment waiting time of certain type terminals
Length；And/or arrange the waiting time length of certain priority endpoint；And/or agreement terminal initiates certain priority service
Waiting time length；And/or agreement terminal initiates the waiting time length for allowing deferred traffic；And/or agreement is under the jurisdiction of
The waiting time length of the terminal of certain group；And/or arrange the waiting time length of the terminal of certain access grade；And/or about
It is fixed whether the waiting time length of roaming terminal in other words can be according to terminal type, and/or terminal PRI, and/or end
Hold whether the priority of initiation business, and/or terminal originating service allow group, and/or terminal belonging to delay, and/or terminal
Corresponding waiting time length is arranged in access grade, and/or terminal roaming situation by way of protocol conventions.
The system message carries waiting time length can be with are as follows: when in system message including the waiting of certain type terminals
Between length；And/or the waiting time length comprising certain priority endpoint；And/or certain priority industry is initiated comprising terminal
The waiting time length of business；And/or waiting time length when initiating whether to allow deferred traffic comprising terminal；And/or packet
Waiting time length containing the terminal for being subordinate to Mr. Yu's group；And/or the waiting time length of the terminal comprising certain access grade；
And/or comprising whether the waiting time length of roaming terminal, in other words, system side can be according to terminal type, and/or terminal
Whether the priority, and/or terminal originating service of priority, and/or terminal originating service allow belonging to delay, and/or terminal
Group, and/or TerminalAccessClass, and/or terminal roaming situation, corresponding waiting time length is set, and is disappeared by system
Breath carries the waiting time length of the setting.
Terminal according to itself terminal type, and/or terminal PRI, and/or the priority of terminal originating service and/
Or whether terminal originating service allows group, and/or TerminalAccessClass, and/or terminal roaming belonging to delay, and/or terminal
The information such as situation, the waiting time length that vlan query protocol VLAN agreement or system message carry, with the waiting time length of the acquisition
Value is used as setting time.
If terminal obtains waiting time length by system message, network side is loaded according to random access or core net
The waiting time length for including in the access restriction demand setting system message of setting.
It should be noted that if terminal after random access failure and in the case where having reselected cell, it is described according to
Setting time is obtained according to the waiting time length that system message carries are as follows: is carried according to new cell system message waiting for a long time
Degree obtains setting time.
It should be noted that the terminal can be MTC device and/or H2H equipment in the present invention.
The present invention also correspondingly proposes a kind of terminal, for after random access failure, wait setting time initiate again with
Machine access.
The setting time is obtained by the waiting time length that terminal is made an appointment according to agreement, alternatively, by terminal foundation
The waiting time length that system message carries obtains.
The waiting time length or system message that agreement based on the terminal acquisition setting time is made an appointment carry
Waiting time length are as follows: according to the priority of terminal type, and/or terminal PRI, and/or terminal originating service, and/or
Whether terminal originating service allows group, and/or TerminalAccessClass, and/or terminal roaming feelings belonging to delay, and/or terminal
Condition, the corresponding waiting time length of setting,
The terminal obtains setting time are as follows: terminal is according to itself terminal type, and/or terminal PRI, and/or end
Hold whether the priority of initiation business, and/or terminal originating service allow group, and/or terminal belonging to delay, and/or terminal
The information such as access grade, and/or terminal roaming situation, the waiting time length that vlan query protocol VLAN agreement or system message carry, with
The waiting time length value of the acquisition is as setting time.
In the case where selecting cell again after random access failure, what the terminal foundation system message carried etc.
Setting time is obtained to time span are as follows: the waiting time length carried according to new cell system message obtains setting time.
The terminal is MTC device and/or H2H equipment.
The implementation of technical solution of the present invention is described in further detail combined with specific embodiments below.
Embodiment 1
In the present embodiment, in any one base station jurisdiction district of LTE system, resides a large amount of MTC device and H2H is set
Standby, some are in connection status to these equipment, some are in idle condition.At a certain moment, part MTC device is due to there is data hair
It send, needs initiating business request.Fig. 3 is the flow diagram that MTC device (referred to as MD1) accesses network in the embodiment of the present invention 1,
As shown in figure 3, the process includes:
Step 301:MD1 initializes relevant parameter, and preamble transmissions number (PREAMBLE_ is such as arranged
It TRANSMISSION_COUNTER) is 1.
Step 302:MD1 randomly chooses a lead code (Preamble), in Physical Random Access Channel (Physical
Random Access Channel, PRACH) on send.
Whether step 303:MD1 receives random access response in scheduled time window, if so, thening follow the steps
304；Otherwise, step 307 is executed.In the step, scheduled time window is terminal receiving random access response as defined in agreement
Time window.
Step 304:MD1 is according to the random access response received, on (or on uplink authorization) ascending resource that it is indicated
Send Msg3, and start Conflict solving timer, wherein Msg3 at least should include: the unique identification (TMSI) of the terminal or
Random identification (Random ID), and establish reason (Establishment Cause).It should be noted that if MD1 connects
The instruction for receiving base station transmission is not received by the response message (i.e. NACK message) of Msg3, then retransmits Msg3, and the conflict of restarting
Solve timer.
Step 305:MD1 judges the desired competition solution that base station transmission whether is received before Conflict solving timer expiry
Certainly message Msg4, if so, executing step 306；Otherwise, step 307 is executed.
Step 306: random access success, process terminate.
Step 307: preamble transmissions number adds 1.
Step 308:MD1 judges whether preamble transmissions number is greater than maximum transmission times, if so, executing step 309；
Otherwise, step 302 is executed.
Step 309: this random access failure reports random access failure to upper layer, and (rrc layer non-connects on the upper layer of MD1
Enter layer) judge whether to need initiating business request again, if it is desired, then wait for a period of time, trigger again MAC layer initiate with
Machine access, MD1 restart to execute step 301；If it is not required, then the process of MD1 access network terminates, MD1 is still maintained
Idle state.
In a step 309, MD1 continues initiating business request if necessary, then needs to start timer, super in the timer
Constantly, MAC layer could be triggered again initiates random access.This can be accessed caused by network to avoid as a large amount of MTC device
Random access resource is nervous, conflict aggravation for a period of time by delay can make the unit time that the MTC device into network be inscribed
Quantity equalization, improves the success rate of MTC device random access.Network can be accessed simultaneously to avoid a large amount of MTC device to draw
The overload of radio resource is sent out, and the random access initiated again will lead to network cannot be restored to normal state.
In the present embodiment, a period of time (or timer duration) of waiting in such a way that agreement is made an appointment, agreement
Can make an appointment the waiting time length of certain type terminals, such as arrange MTC device and need to wait 600 seconds, H2H equipment needs
It waits 0 second；
Agreement can also make an appointment the waiting time length of certain priority endpoint, and the terminal for such as arranging low priority needs
It waits 1000 seconds, the terminal of normal priority needs to wait 100 seconds；
Agreement can also make an appointment terminal when initiating the waiting of certain priority service (or whether allowing deferred traffic)
Between length need to wait 500 seconds, agreement terminal hair when such as arranging terminal and initiating low priority traffice (or allow deferred traffic)
When playing high-priority service (or not allowing deferred traffic), need to wait 100 seconds；Existing protocol supports terminal to initiate high priority
Business (highPriorityAccess), urgency traffic (Emergency, the priority of urgency traffic are highest), because seeking
Business (mt-Access), Client-initiated signaling traffic (mo-Signalling), the Client-initiated data industry exhaled and initiated
It is engaged in (mo-Data), is introduced for MTC device, the business of other priority can be increased, such as electronic meter reading business (intelligence
Ammeter, intellectual water meter etc. report quantity etc.) belong to the high business of time tolerance, this business is properly termed as the industry of low priority
Business or the business (Delay Tolerant) for allowing to postpone initiate the MTC device of monitoring service such as monitoring vehicle anti-theft
Alarm business belong to the low business of time tolerance, this business can be divided into the business of high priority, can also introduce
What new priority indicated MTC device initiation is the business (non Delay Tolerant) for not allowing to postpone.
Agreement, which can also make an appointment, is subordinate to the waiting time length of the terminal of Mr. Yu's group (Group), and different terminals can
To belong to different groups, as agreement make an appointment some group terminal need to wait 200 seconds, other group terminals need to wait
100 seconds；
Agreement can also make an appointment certain access grade (Access Class) terminal waiting time length, at end
Save its corresponding access grade in end, i.e. agreement can make an appointment the waiting time length of different access grade terminals；
Whether agreement can also roam waiting time length of making an appointment according to terminal, in the Subscriber Identity Module of terminal
The home public land mobile network of signing is saved in (Universal Subscriber Identity Module, USIM)
(Home Public Land Mobile Network, HPLMN), or further include equivalent home public land mobile network
(Equivalent Home PLMN, EHPLMN), if accessing terminal to network is not belonging to HPLMN, or be not belonging to HPLMN and
EHPLMN, then the terminal is the terminal of roaming, is 1000 seconds as agreement can arrange roaming terminal waiting time length, non-roaming
Terminal waiting time length be 0 second.
Embodiment 2
In the present embodiment, in any one base station jurisdiction district of LTE system, resides a large amount of MTC device and H2H is set
Standby, some are in connection status to these equipment, some are in idle condition.At a certain moment, part MTC device is due to there is data hair
It send, needs initiating business request.Wherein the process of MTC device (referred to as MD2) access network is similar with process described in embodiment 1,
The difference is that after determining that number of retransmissions is greater than maximum retransmission, upper layer (the rrc layer or Non-Access Stratum) judgement of MD2 is
It is no to need initiating business request again, if it is desired, then to wait for a period of time, trigger MAC layer again and initiate random access；If
It does not need, then the process that MD2 accesses network terminates, and MD2 still maintains Idle state.In the present embodiment, a period of time of waiting from
It is obtained in system message, MD2 just obtains the waiting time, but MD2 is not stood when accessing current cell from system message
The parameter is applied, only after random access failure, just applies the parameter.
In existing system message, the cell of waiting time is not needed, for initiation random access again for reality
The existing present invention, needs to extend existing system message, increases the cell for indicating the waiting time in some System information block.System
Can be set for all terminals the unified waiting time in message；
Or the different waiting time is set for different types of terminal, it is 600 that the MTC device waiting time, which is such as arranged,
Second, the H2H equipment waiting time is 0 second；
Or the waiting time is set for the priority of terminal, the terminal (or only referring to MTC device) of low priority is such as set
Waiting time be 1000 seconds, terminal waiting time of normal priority is 100 seconds；
Or the waiting time is set for the priority of terminal originating service, terminal is such as set and initiates low priority traffice
Waiting time when (allowing deferred traffic) is 5 minutes, and the waiting time that other priority services are arranged is 0 minute；
Or the waiting time is set for the access grade of terminal, the waiting time that AC0~AC9 is such as arranged is 100 seconds,
The waiting time of his AC is 0 second；
Or for the group setting waiting time that terminal is subordinate to, the waiting time that certain groups (according to group marks) are such as arranged is
500 seconds, the waiting time of other groups was 100 seconds；
Or the roaming featured configuration waiting time for terminal, such as the terminal (or only referring to MTC device) of setting roaming
It is 600 seconds to the time, the non-roaming terminal waiting time is 0 second.
Terminal obtains the waiting time, terminal saves the parameter, such as when resident into current cell from system message
Fruit terminal will start corresponding timer, the timer duration etc. since it is desired that initiating business request leads to random access failure
In the waiting time, only when the timer expiry, terminal could initiate random access again.Base station is arranged by system message
Waiting time can dynamically be arranged the waiting time according to the load level of current radio resource, can reasonably control unit
The terminal quantity of random access is initiated in time, if the load of current random access is higher (to initiate the number of terminals of random access
There are many amount), the longer waiting time is arranged by system message in base station, to reduce current random access collision, raising terminal with
The success rate of machine access；Core net also can propose access restriction demand to base station according to the load of itself, such as send and limit to base station
The access restriction demand of the access rate of certain terminal is made, base station will be in the demand setting system message that proposed according to core net
Waiting time length.
It should be noted that, since cell signal quality changes, terminal selects if terminal is after random access failure
Other cells when terminal initiates random access again, need the waiting time in the system message using new persistent district,
After waiting time corresponding timer expiry, random access could be initiated again；Or terminal still uses behind re-selecting cell
Waiting time in former cell system message could initiate random access after waiting time corresponding timer expiry again.
For the present embodiment there are also other implementations, waiting time, terminal can be arranged in base station in random access response
After obtaining the waiting time by random access response, after random access failure, the time to be set such as need, it then could again
Secondary initiation random access.This needs increases new cell in random access response indicates the waiting time.
There are also other implementations, terminals to obtain the waiting time by system message, connect at random in terminal for the present embodiment
After entering unsuccessfully, terminal takes 0 to a random number between the waiting time, as the practical waiting time, only when actually waiting
Between after time-out, random access could be initiated again.
Embodiment 3
The present embodiment wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system
In system, resided in some administrative cell of radio network controller (Radio Network Control, RNC) a large amount of
MTC device and H2H equipment, some are in connection status to these equipment, some are in idle condition.A certain moment, part MTC are set
For due to there is data transmission, initiating business request is needed.One of MTC device (referred to as MD1) initiates the stream of random access
Journey are as follows:
The random access procedure of physical layer is triggered by MAC layer in WCDMA, and physical layer is first according to from rrc layer and MAC
The parameter of acquisition determines random access resource (signature and available time slot) and sends the power of Preamble, sends
Preamble (RACH Preamble part), then, in descending time slot corresponding with the ascending time slot of Preamble is sent
AI is fed back in upper reception.Reception for AI, there are three types of situations altogether:
1, ACK mark is had received on descending time slot: physical layer sends access message (RACH Message to network side
part).After the data transfer is complete, to MAC layer feedback states " RACH message transmitted ", physical accidental is exited
Access procedure.Show random access success at this time.
2, NACK mark is had received on descending time slot: at this point, physical layer can be to MAC feedback states " Nack on AICH
Received ", and exit physical accidental access procedure.
If 3, both not receiving ACK, NACK is not also received: at this point, if the transmission times of Preamble does not reach
To upper limit Trans_Max, physical layer can reselect random access resource, increase transmission power, carry out random access again；Such as
The transmission times of fruit Preamble reaches the upper limit, then physical layer is to MAC layer feedback states " No ack on AICH ", and exits
Physical accidental access procedure.
If the upper layer of MD1 does not receive " the RACH message transmitted " of physical layer feedback, show with
Machine access failure.If MD1 still needs initiating business request, physical layer will be triggered again and implements random access procedure.This
When need wait for a period of time, waiting time can by rrc layer control or by MAC layer control or by physical layer control
System.Waiting time can be arranged in such a way that agreement is made an appointment, or be arranged by system message.The mode of protocol conventions
It is identical as 1 the method for embodiment, it is arranged by system message identical as 2 the method for embodiment.
By the way that the waiting time is arranged, it can control the quantity for initiating the terminal of random access in the unit time, improve end
Hold the success rate of random access.The overload that network causes radio resource can be accessed simultaneously to avoid a large amount of terminal.
In the present embodiment, if terminal has reselected other cells, terminal before terminal initiates random access again
The configuration for deleting the former cell waiting time, initiates random access in new cell immediately.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of accidental access method, which is characterized in that this method comprises: waiting setting time after terminal random access failure
Random access is initiated again；Wherein,
The setting time is obtained according to the waiting time length that agreement is made an appointment, alternatively, according to system message carry etc.
It is obtained to time span；
The waiting time length that the waiting time length or system message that the agreement is made an appointment carry are as follows: according to terminal class
The priority, and/or terminal originating service of type, and/or terminal PRI, and/or terminal originating service whether allow postpone,
And/or group belonging to terminal, and/or TerminalAccessClass, and/or terminal roaming situation, setting it is corresponding waiting for a long time
Degree,
The terminal obtains setting time are as follows: terminal is sent out according to itself terminal type, and/or terminal PRI, and/or terminal
Whether the priority, and/or terminal originating service for the business of rising allow group belonging to time delay, and/or terminal, and/or terminal
The information such as access grade, and/or terminal roaming situation, the waiting time length that vlan query protocol VLAN agreement or system message carry, with
The waiting time length value of the acquisition is as setting time；
The waiting time length that the system message carries is the access that network side is loaded according to random access or core net is set
The waiting time length of limitation demand setting.
2. the method according to claim 1, wherein terminal after random access failure, selects cell again
In the case where, the waiting time length carried according to system message obtains setting time are as follows: according to new cell system message
The waiting time length of carrying obtains setting time.
3. the method according to claim 1, wherein the terminal is machine type communication MTC device and/or people
H2H equipment is communicated with people.
4. a kind of terminal, which is characterized in that the terminal includes: computing device and storage device, and the storage device is for depositing
Storage executes the program code of the computing device, and the computing device is used for after random access failure, waits setting time again
Initiate random access；Wherein,
The setting time is obtained by the waiting time length that terminal is made an appointment according to agreement, alternatively, by terminal according to system
The waiting time length that message carries obtains；
What the waiting time length or system message that agreement based on the terminal acquisition setting time is made an appointment carried etc.
To time span are as follows: according to terminal type, and/or terminal PRI, and/or the priority, and/or terminal of terminal originating service
Whether initiation business allows group, and/or TerminalAccessClass, and/or terminal roaming situation belonging to delay, and/or terminal, if
The corresponding waiting time length set,
The terminal obtains setting time are as follows: terminal is sent out according to itself terminal type, and/or terminal PRI, and/or terminal
Whether the priority, and/or terminal originating service for the business of rising allow group belonging to time delay, and/or terminal, and/or terminal
The information such as access grade, and/or terminal roaming situation, the waiting time length that vlan query protocol VLAN agreement or system message carry, with
The waiting time length value of the acquisition is as setting time；
The waiting time length that the system message carries is the access that network side is loaded according to random access or core net is set
The waiting time length of limitation demand setting.
5. terminal according to claim 4, which is characterized in that after random access failure, select the feelings of cell again
Under condition, the computing device is also used to: the waiting time length carried according to new cell system message obtains setting time.
6. terminal according to claim 4, which is characterized in that the terminal is MTC device and/or H2H equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010602025.0A CN102548012B (en) | 2010-12-22 | 2010-12-22 | A kind of accidental access method and terminal |
| PCT/CN2011/080006 WO2012083739A1 (en) | 2010-12-22 | 2011-09-22 | Random access method and terminal |
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| CN201010602025.0A CN102548012B (en) | 2010-12-22 | 2010-12-22 | A kind of accidental access method and terminal |
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| CN102548012B true CN102548012B (en) | 2019-03-15 |
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| EP3018962B1 (en) * | 2013-08-14 | 2022-01-26 | Huawei Technologies Co., Ltd. | Method for randomly accessing a network, and terminal |
| CN106162923A (en) * | 2015-04-10 | 2016-11-23 | 中兴通讯股份有限公司 | Random access signaling resend method and device |
| CN106412091A (en) * | 2016-10-25 | 2017-02-15 | 广东欧珀移动通信有限公司 | Method, device and system for controlling data transmission |
| EP3761749A1 (en) * | 2016-12-26 | 2021-01-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Random access method and apparatus |
| ES2856089T3 (en) * | 2017-01-23 | 2021-09-27 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Method for random access, terminal device and network device |
| WO2018191899A1 (en) * | 2017-04-20 | 2018-10-25 | 北京小米移动软件有限公司 | User equipment protection method, device, user equipment and base station |
| US11184941B2 (en) | 2017-05-18 | 2021-11-23 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and apparatus for protecting user equipment, user equipment and base station |
| SG11202000595PA (en) * | 2017-08-09 | 2020-02-27 | Beijing Xiaomi Mobile Software Co Ltd | Overheating protection method and device of user equipment, user equipment and base station |
| CN109429356B (en) * | 2017-08-23 | 2020-07-14 | 维沃移动通信有限公司 | System information transmission processing method and user terminal |
| CN107404746B (en) * | 2017-08-25 | 2020-12-29 | 深圳传音通讯有限公司 | Reselection optimization system and method after random access cell failure |
| CN108769995B (en) * | 2018-05-29 | 2023-04-18 | 武汉虹信科技发展有限责任公司 | Service scheduling processing method and device |
| CN113473571B (en) * | 2021-06-29 | 2022-10-21 | 中信科移动通信技术股份有限公司 | Cell access control method, device and base station |
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| CN101247647B (en) * | 2007-02-15 | 2011-10-26 | 中兴通讯股份有限公司 | Method for reinforcing ascending link and implementing fast switch-over |
| CN101547513B (en) * | 2008-03-25 | 2011-09-14 | 华为技术有限公司 | Method for controlling access of user equipment in multi-frequency system and network equipment |
| GB2461780B (en) * | 2008-06-18 | 2011-01-05 | Lg Electronics Inc | Method for detecting failures of random access procedures |
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| CN1505336A (en) * | 2002-12-03 | 2004-06-16 | 华为技术有限公司 | A control method for random access |
| CN101616488A (en) * | 2008-06-23 | 2009-12-30 | 华为技术有限公司 | The control method that a kind of enhancing inserts at random, Apparatus and system |
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