CN109756990A - A kind of accidental access method and mobile communication terminal - Google Patents
A kind of accidental access method and mobile communication terminal Download PDFInfo
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- CN109756990A CN109756990A CN201711077433.7A CN201711077433A CN109756990A CN 109756990 A CN109756990 A CN 109756990A CN 201711077433 A CN201711077433 A CN 201711077433A CN 109756990 A CN109756990 A CN 109756990A
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Abstract
The embodiment of the present invention is designed to provide a kind of accidental access method and mobile communication terminal, this method comprises: sending message MSG3 to the distributed unit DU of network side equipment, and activates first timer；When not receiving solution collision message before the first timer time-out, random access procedure competition-based is restarted；The solution collision message is received before first timer time-out, and when the solutions collision message indicates to compete successfully, stops the first timer, and activate second timer.The present invention, which can shorten, does not receive solution collision message before first timer time-out, that is, the mobile communication terminal for competing failure is restarted the time of random access procedure, and the mobile communication terminal for promoting competition failure completes the efficiency of random access procedure.
Description
Technical field
The present invention relates to field of communication technology, in particular to a kind of accidental access method and mobile communication terminal.
Background technique
Currently, 3GPP (The 3rd Generation Partnership Project, third generation partner program)
RAN (Radio Access Network, wireless access network) 3 standardization groups have determined that 5G (5th-Generation,
5th generation) in system, wireless network access device (being illustrated by taking base station as an example below) can be CU according to stack splitting
The separate type framework of (Centralized Unit, central location) and DU (Distributed Unit, distribution unit), originally
In LTE (Long Term Evolution, long term evolution) system, the whole protocol stack that base station uses is split as two parts.Separately
Outside, 3GPP RAN3 regulation is when cutting is located at higher level, PDCP (Packet Data Convergence Protocol, grouping
Data convergence protocol) layer and RRC (Radio Resource Control, wireless heterogeneous networks) layer will be located at CU, and RLC
(Radio Link Control, wireless spread-spectrum technology) layer, MAC (Medium Access Control, media intervention control) layer
It is located in DU with PHY (Physical layer, physical layer) layer.
Therefore, compared to the base station in LTE system, the base station in 5G system is receiving mobile communication terminal by DU
(hereinafter referred to as UE) initiates the connection request message that sends when random access procedure, and after competition results are sent to UE, also needs
RRC signaling is carried out with CU to interact, and will be competed the connection request message that successful UE is sent and is transmitted to CU, whether is received by CU decision
UE access, and the result of decision of CU is sent to UE via DU, cause UE from connection request message is sent to the reception result of decision
Between waiting time it is longer.
And it is directed to LTE system, the timer for considering air interface time delay and MSG3 processing time, UE is arranged in UE at present
Do not received before the timer expires base station transmission be used to indicate whether permit access the result of decision when, just restart with
Machine access process.Therefore, when initiating random access procedure using wireless network access device of the existing UE into 5G system,
Due to also needing to carry out RRC signaling interaction between the DU and CU in the wireless network access device in 5G system, will likely result in competing
The UE for striving failure need to wait longer time just learns competition failure as a result, the UE for being unfavorable for competition failure be rapidly completed with
Machine access procedure.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of accidental access method and mobile communication terminal, is lost with shortening competition
The mobile communication terminal lost is restarted the time of random access procedure, and the mobile communication terminal for promoting competition failure completes random access
The efficiency of process.
In order to achieve the above object, the embodiment of the present invention provides a kind of accidental access method, is used for mobile communication terminal, should
Accidental access method includes:
Message MSG3 is sent to the distributed unit DU of network side equipment, and activates first timer；
When not receiving solution collision message before the first timer time-out, random access competition-based is restarted
Process；
The solution collision message is received before the first timer time-out, and the solution collision message indicates
When competing successfully, stop the first timer, and activate second timer；
Wherein, the first timer is used to control the waiting time for solving collision message, the second timer
For controlling the waiting time of MSG4.
The embodiment of the present invention also provides a kind of mobile communication terminal, which includes: transceiver, is used for net
The distributed unit DU of network side apparatus sends message MSG3；
Processor, for activating after the transceiver sends message MSG3 to the distributed unit DU of network side equipment
First timer；
When not receiving solution collision message before the first timer time-out, random access competition-based is restarted
Process；
The solution collision message is received before the first timer time-out, and the solution collision message indicates
When competing successfully, stop the first timer, and almost second timer；
Wherein, the first timer is used to control the waiting time for solving collision message, the second timer
For controlling the waiting time of MSG4.
The embodiment of the present invention also provides a kind of mobile communication terminal, including memory, processor and is stored in the storage
On device and the computer program that can run on the processor, realized such as when the computer program is executed by the processor
The upper accidental access method.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored thereon with computer program, the meter
Calculation machine program realizes accidental access method as described above when being executed by processor.
In the embodiment of the present invention, mobile communication terminal is provided with first for controlling the waiting time for solving collision message
The second timer of timer and the waiting time for controlling MSG4.The distribution of mobile communication terminal to network side equipment is single
First DU sends message MSG3, and activates first timer；Solution conflict is not received before the first timer time-out to disappear
When breath, random access procedure competition-based is restarted；The solution conflict is received before the first timer time-out to disappear
Breath, and the solutions collision message indicates when competing successfully, stops the first timer, and activate second timer.It compares
In the timer for the waiting time for being provided only for control MSG4 in the prior art, mobile communication terminal of the invention is fixed first
When device time-out before do not receive solve collision message when, random access procedure competition-based can be restarted, arrived without waiting
Second timer is overtime and just restarts random access procedure competition-based when not receiving MSG4, so as to shorten first
Solution collision message is not received before timer expiry, that is, the mobile communication terminal for competing failure restarts random access procedure
Time, the mobile communication terminal for promoting competition failure complete the efficiency of random access procedure.
Detailed description of the invention
Fig. 1 shows one of flow charts of accidental access method provided in an embodiment of the present invention；
Fig. 2A indicates the two of the flow chart of accidental access method provided in an embodiment of the present invention；
Fig. 2 B indicates the three of the flow chart of accidental access method provided in an embodiment of the present invention；
Fig. 2 Ba indicates the four of the flow chart of accidental access method provided in an embodiment of the present invention；
Fig. 2 Bb indicates the five of the flow chart of accidental access method provided in an embodiment of the present invention；
Fig. 2 Bc indicates the six of the flow chart of accidental access method provided in an embodiment of the present invention；
Fig. 2 C indicates the seven of the flow chart of accidental access method provided in an embodiment of the present invention；
Fig. 2 D indicates the eight of the flow chart of accidental access method provided in an embodiment of the present invention；
Fig. 3 indicates the structure chart for the mobile communication terminal that one embodiment of the invention provides；
Fig. 4 indicates the structure chart for the mobile communication terminal that further embodiment of this invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
In the embodiment of the present invention, mobile communication terminal is the mobile communication terminal for not accessing network side, mobile communication terminal
After the completion of random access, the network side equipment for the CU-DU framework that can be separated by network with high level is communicated.
In the random access procedure of the network side equipment of the CU-DU framework of high level separation, network side equipment is connect by DU
It, can be to mobile communication end after the MSG3 (Message 3, message 3) for carrying connection request for receiving mobile communication terminal transmission
Reply the solution collision message or NACK (Negative Acknowledgement, negative response) for being used to indicate competition results in end
Message, and to the MSG3 of the successful mobile communication terminal of CU forwarding competition, whether shifting is received by the CU decision of network side equipment
The connection request of mobile communication terminal, CU pass through DU again and send the result of decision to mobile communication terminal.Wherein, the result of decision can be taken
Band is in MSG4 (Message 4, message 4).
Therefore, compared with the prior art in mobile communication terminal in be only arranged one for controlling the waiting time of MSG4
Timer, the mobile communication terminal in the embodiment of the present invention have additional a waiting time for control solution collision message
Timer, i.e. mobile communication terminal in the embodiment of the present invention are provided with simultaneously for controlling the waiting for solving collision message
The timer of time is denoted as first timer, and the timer of the waiting time for controlling MSG4, is denoted as second timer.
To which the mobile communication terminal of the embodiment of the present invention can fail in competition, such as: it is not received before the timer expiry
Collision message is solved, or receives the solution collision message or NACK for being used to indicate competition failure before the timer expiry
When message, restart random access procedure competition-based or execute other operations, without it is equal until be used to indicate MSG4 etc.
When the timer expiry of time and while not receiving MSG4, just restarts random access procedure competition-based, competing so as to shorten
The mobile communication terminal for striving failure is restarted the time of random access procedure, and the mobile communication terminal for promoting competition failure is completed at random
The efficiency of access procedure.
Wherein, the mobile communication terminal of the embodiment of the present invention can be mobile phone, tablet computer (Tablet Personal
Computer), laptop computer (Laptop Computer), personal digital assistant (personal digital
Assistant, abbreviation PDA), mobile Internet access device (Mobile Internet Device, MID) or wearable device
(Wearable Device) etc..Network side equipment is the network side equipment of the CU-DU framework of high-rise separation, can be 5G network
In base station (abbreviation gNB) etc., do not limit herein.
The accidental access method applied to mobile communication terminal of the embodiment of the present invention is illustrated below.
Referring to Figure 1, Fig. 1 shows one of flow charts of accidental access method provided in an embodiment of the present invention.Such as Fig. 1 institute
Show, the accidental access method of the present embodiment the following steps are included:
Step 101 sends message MSG3 to the distributed unit DU of network side equipment, and activates first timer；
Step 102 is not received before the first timer time-out when solving collision message, is restarted competition-based
Random access procedure；
Step 103 receives the solution collision message before the first timer time-out, and the solution conflicts
When message instruction is competed successfully, stop the first timer, and activate second timer；
Wherein, the first timer is used to control the waiting time for solving collision message, the second timer
For controlling the waiting time of MSG4.
It should be noted that timer is expressed as described in the embodiment of the present invention " before timer expiry " from being activated
Start to the entire period between time-out.It is illustrated respectively by taking step 102 and step 103 as an example, if step 102 is expressed as
It is activated and starts into the period entire between time-out in the first timer, mobile communication terminal does not receive always solution
Collision message then restarts random access procedure competition-based；If step 103 is expressed as in the first timer from being activated
Start to any one time point in the entire period between time-out, mobile communication terminal receives the solution conflict and disappears
Breath, and the solutions collision message indicates when competing successfully, then stops the first timer, and activate second timer.
In the present embodiment, step 102 and step 103 are mobile communication terminal is based on whether connecing before first timer time-out
Receive the two kinds of parallel practice modes that the judgement result of collision message can be performed that solve.For convenience of description, below by step 101 and
Step 102 is considered as first embodiment, and step 101 and step 103 are considered as second embodiment.
For first embodiment, A referring to Figure 2 together.As shown in Figure 2 A, present embodiment the following steps are included:
Step 201, mobile communication terminal send random access leader sequence to DU.
Step 202, DU distribute Cell Radio Network Temporary Identifier/Identity, Cell-RNTI.
Step 203, DU send random access response to mobile communication terminal.
Step 204, mobile communication terminal send MSG3 to DU.
Step 205, mobile communication terminal activate first timer.
When step 206, mobile communication terminal do not receive solution collision message before the first timer time-out, weight
Open random access procedure competition-based.
In present embodiment, mobile communication terminal sends random access leader sequence (Random Access to DU
Preamble), to initiate random access competition-based to network side equipment, wherein random access leader sequence can carry
In message 1 (Message 1, abbreviation MSG1).
Since network side equipment may receive the random access competition-based that multiple mobile communication terminals are initiated simultaneously
Process, and at this point, network side equipment can not learn multiple random access requests and each shifting for initiating random random access procedure
Corresponding relationship between mobile communication terminal, therefore, DU need to identify (Cell-Radio Network for distribution cell-radio network
Temporary Identifier, abbreviation C-RNTI), and unique Temp C-RNTI is carried in random access response
It is sent to mobile communication terminal in (Random Access Response, abbreviation RAR), in addition, UL can also be carried in RAR
Grant (uplink scheduling authorization).
In this way, mobile communication terminal can send MSG3 relevant to itself to DU based on interim C-RNTI, DU is being received
To after MSG3, also it can be seen that the MSG3 is sent by which mobile communication terminal.Mobile communication terminal is sent to DU
After MSG3, first timer is activated, for controlling the waiting time for solving collision message.
In present embodiment, mobile communication terminal does not receive solution conflict before the first timer time-out and disappears
Breath, it is logical to compete the movement of failure in this random access procedure competition-based to illustrate the mobile communication terminal of present embodiment
Believe terminal, then the mobile communication terminal restarts random access procedure competition-based.To compared with the prior art, shorten
The mobile communication terminal restarts the time of random access procedure competition-based.
For second embodiment, B referring to Figure 2 together.As shown in Figure 2 B, present embodiment the following steps are included:
Step 201, mobile communication terminal send random access leader sequence to DU.
Step 202, DU distribute Cell Radio Network Temporary Identifier/Identity, Cell-RNTI.
Step 203, DU send random access response to mobile communication terminal.
Step 204, mobile communication terminal send MSG3 to DU.
Step 205, mobile communication terminal activate first timer.
Step 207, DU are used to indicate competition to mobile communication terminal transmission and successfully solve collision message.
Step 208, mobile communication terminal receive the solution collision message before the first timer time-out, and
When the solution collision message instruction is competed successfully, stop the first timer, and activate second timer.
It is different from above-mentioned first embodiment, present embodiment has received before first timer time-out and is used to indicate
Competition successfully solves collision message, illustrates that the mobile communication terminal of present embodiment is this random access mistake competition-based
Successful mobile communication terminal is competed in journey, then mobile communication terminal can stop first timer, second timer is activated, etc.
MSG4 is sent to DU.
For present embodiment, although the mobile communication terminal in the embodiment is this random access competition-based
Successful mobile communication terminal is competed in the process, but mobile communication terminal also needs activation second timer, and in second timer
It receives before time-out and just can determine that whether network side equipment receives the result of decision of its random access request after parsing MSG4.
Therefore, mobile communication terminal is after activating second timer, it is also desirable to be received before according to second timer
Type of message or content, execute different operations, referring to Figure 2 together Ba to Fig. 2 Bc.
As shown in Fig. 2 Ba, the embodiment the following steps are included:
Step 201, mobile communication terminal send random access leader sequence to DU.
Step 202, DU distribute Cell Radio Network Temporary Identifier/Identity, Cell-RNTI.
Step 203, DU send random access response to mobile communication terminal.
Step 204, mobile communication terminal send MSG3 to DU.
Step 205, mobile communication terminal activate first timer.
Step 207, DU are used to indicate competition to mobile communication terminal transmission and successfully solve collision message.
Step 208, mobile communication terminal receive the solution collision message before the first timer time-out, and
When the solution collision message instruction is competed successfully, stop the first timer, and activate second timer.
Step 209, DU forward initial uplink radio resource control information to CU.
Step 210, CU send downlink radio resource control message to DU.
Step 211, DU send MSG4 to mobile communication terminal.
When step 212, mobile communication terminal receive before the second timer time-out and the MSG4 are successfully decoded,
Stop the second timer.
Step 220, mobile communication terminal send random access to DU and complete feedback message.
Step 221, DU send random access to CU and complete feedback message.
In present embodiment, after DU determines that mobile communication terminal competes successfully, the control of initial uplink radio resource is forwarded to CU
Message (Initial UL RRC Message) processed, wherein carried in Initial UL RRC Message C-RNTI and
MSG3.CU decides whether to receive the random access request of the mobile communication terminal, and the result of decision is carried on downlink and is wirelessly provided
In source control message (DL RRC Message), for make that the clear CU of DU accepts or rejects be which mobile communication terminal with
Machine access request, DL RRC Message also carry the identity information (UE ID) and C-RNTI of mobile communication terminal.At this
In embodiment, the result of decision that downlink radio resource control message carries is the random access that CU receives the mobile communication terminal
Request.
In this way, DU can send MSG4 to corresponding mobile communication terminal, for informing that mobile communication terminal, network side are set
It is standby whether to permit its access.
In present embodiment, mobile communication terminal is received and is successfully decoded described before the second timer time-out
MSG4 when learning that network side equipment receives its random access request, then stops the second timer.
It is mobile if MSG4 instruction network side equipment receives mobile communication terminal random access request as shown in Fig. 2 Ba
Communication terminal complete random access after the completion of, to DU send random access complete feedback message so that DU to CU send with
Feedback message is completed in machine access.
It is to be understood that in another embodiment, if MSG4 instruction network side equipment refusal mobile communication terminal with
Whether machine access request, mobile communication terminal can be decided in its sole discretion to re-initiate and connect at random after stopping the second timer
Enter request, the embodiment of the present invention is not construed as limiting this.
As shown in Fig. 2 Bb, which includes:
Step 201, mobile communication terminal send random access leader sequence to DU.
Step 202, DU distribute Cell Radio Network Temporary Identifier/Identity, Cell-RNTI.
Step 203, DU send random access response to mobile communication terminal.
Step 204, mobile communication terminal send MSG3 to DU.
Step 205, mobile communication terminal activate first timer.
Step 207, DU are used to indicate competition to mobile communication terminal transmission and successfully solve collision message.
Step 208, mobile communication terminal receive the solution collision message before the first timer time-out, and
When the solution collision message instruction is competed successfully, stop the first timer, and activate second timer.
Step 209, DU forward initial uplink radio resource control information to CU.
Step 210, CU send downlink radio resource control message to DU.
Step 211, DU send MSG4 to mobile communication terminal.
Step 213, mobile communication terminal receive before the second timer time-out but decode the MSG4 not successfully.
Step 214, mobile communication terminal send the 2nd NACK message to DU.
Step 215, mobile communication terminal reset the second timer.
Step 216, DU forward initial uplink radio resource control information to CU.
Step 217, CU send downlink radio resource control message to DU.
Step 218, DU send MSG4 to mobile communication terminal.
When step 219, mobile communication terminal receive before the second timer time-out and the MSG4 are successfully decoded,
Stop the second timer.
Step 220, mobile communication terminal send random access to DU and complete feedback message.
Step 221, DU send random access to CU and complete feedback message.
It is different from the corresponding embodiment of Fig. 2 Ba, the mobile communication terminal of present embodiment is super in the second timer
When before receive but decode the MSG4 not successfully, therefore, mobile communication terminal to DU send the 2nd NACK message so that DU weight
Initial uplink radio resource control information newly is forwarded to CU, and when receiving downlink radio resource control message, again to shifting
Mobile communication terminal sends MSG4.It receives until the second timer is overtime until mobile communication terminal repeatedly and successfully
When decoding the MSG4, stop the second timer.As shown in Fig. 2 Bb, if MSG4 instruction network side equipment receives shifting
Mobile communication terminal random access request after the completion of mobile communication terminal completes random access, sends random access to DU and completes instead
Message is presented, so that DU, which sends random access to CU, completes feedback message.It is to be understood that in another embodiment, if institute
MSG4 instruction network side equipment refusal mobile communication terminal random access request is stated, mobile communication terminal can stop described the
It after two timers, decides in its sole discretion and whether re-initiates random access request, the embodiment of the present invention is not construed as limiting this.
As shown in Fig. 2 Bc, which includes:
Step 201, mobile communication terminal send random access leader sequence to DU.
Step 202, DU distribute Cell Radio Network Temporary Identifier/Identity, Cell-RNTI.
Step 203, DU send random access response to mobile communication terminal.
Step 204, mobile communication terminal send MSG3 to DU.
Step 205, mobile communication terminal activate first timer.
Step 207, DU are used to indicate competition to mobile communication terminal transmission and successfully solve collision message.
Step 208, mobile communication terminal receive the solution collision message before the first timer time-out, and
When the solution collision message instruction is competed successfully, stop the first timer, and activate second timer.
Step 209, DU forward initial uplink radio resource control information to CU.
Step 210, CU send downlink radio resource control message to DU.
When step 222, mobile communication terminal do not receive the MSG4 before the second timer time-out, open again
Move random access procedure competition-based.
It is different from the corresponding embodiment of Fig. 2 Ba, the mobile communication terminal of present embodiment is super in the second timer
When before do not receive the MSG4, illustrate the random access request failure of network mobile communications terminal, therefore, mobile communication is whole
End can restart random access procedure competition-based.
In another embodiment, the accidental access method of mobile communication terminal further includes third embodiment, is please joined together
Read Fig. 2 C.As shown in Figure 2 C, present embodiment the following steps are included:
Step 201, mobile communication terminal send random access leader sequence to DU.
Step 202, DU distribute Cell Radio Network Temporary Identifier/Identity, Cell-RNTI.
Step 203, DU send random access response to mobile communication terminal.
Step 204, mobile communication terminal send MSG3 to DU.
Step 205, mobile communication terminal activate first timer.
Step 223, DU send the solution collision message for being used to indicate competition failure to mobile communication terminal.
Step 224, mobile communication terminal receive the solution collision message before the first timer time-out, and
When the solution collision message instruction competition failure, random access procedure competition-based is restarted.
Present embodiment is different from second embodiment, although mobile communication terminal receives before first timer time-out
To collision message, but solution collision message instruction competition failure is solved, illustrate the mobile communication terminal of present embodiment thus
The mobile communication terminal that failure is competed in secondary random access procedure competition-based then restarts random access stream competition-based
Journey.To which compared with the prior art, the time that the mobile communication terminal restarts random access procedure competition-based can be shortened.
In another embodiment, the accidental access method of mobile communication terminal further includes the 4th embodiment, is please joined together
Read Fig. 2 D.As shown in Figure 2 D, present embodiment the following steps are included:
Step 201, mobile communication terminal send random access leader sequence to DU.
Step 202, DU distribute Cell Radio Network Temporary Identifier/Identity, Cell-RNTI.
Step 203, DU send random access response to mobile communication terminal.
Step 204, mobile communication terminal send MSG3 to DU.
Step 205, mobile communication terminal activate first timer.
Step 225, DU send the first negative response NACK message for being directed to the MSG3 to mobile communication terminal.
Step 226, mobile communication terminal receive first for the MSG3 before the first timer time-out
When negative response NACK message, resets to return after the first timer and described sent to the distributed unit DU of network side equipment
MSG3, and the step of activating first timer.
It is different from first embodiment, although present embodiment receives before first timer time-out for described
The first negative response NACK message of MSG3.In view of MSG3 supports HARQ (Hybrid Automatic Repeat
ReQuest, hybrid automatic repeat-request) process, i.e., it is protected by HARQ mechanism, therefore, mobile communication terminal can reset institute
State return step 204 after first timer, thus compared to first embodiment with mobile communication terminal in third embodiment
Restart random access procedure competition-based, present embodiment can further shorten mobile communication terminal and complete random access
Time.
It should be noted that in view of multiple mobile communication terminals of competition failure may restart heap competition-based simultaneously
Product access process, causes competition to occur congested problem again, causes the probability of mobile communication terminal competition failure higher.
Therefore, in the above-described embodiment, if mobile communication terminal needs to restart random access procedure competition-based,
Mobile communication terminal can with but be not limited only to by system broadcast message carry Backoff time information restart it is competition-based with
Machine access process.
For first embodiment, since mobile communication terminal does not receive solution before the first timer time-out
Collision message, therefore, the mobile communication terminal of the embodiment can be believed according to the Backoff time carried in system broadcast message
Breath restarts random access procedure competition-based.For third embodiment, mobile communication terminal is super in the first timer
When before receive the solution collision message, but solutions collision message instruction competition unsuccessfully when, therefore, the embodiment
Mobile communication terminal according to system broadcast message or the Backoff time information that carries in collision message can be solved restart to be based on
The random access procedure of competition.
Specifically, if in system broadcast message or solve collision message carry Backoff time information instruction Backoff time be
0, then mobile communication terminal can restart random access procedure competition-based immediately；If system broadcast message or solution conflict disappear
The Backoff time information instruction Backoff time carried in breath is T, then mobile communication terminal retracts, i.e. after waiting time T, is restarting
Random access procedure competition-based.Certainly, network side equipment is sent system broadcast message or solve collision message can also be with
Different waiting time T is set for each/group mobile communication terminal, so as to effectively avoid excessive mobile communication terminal from existing
The same time restarts accumulation access process competition-based, improves mobile communication terminal and competes successful probability.
In addition, if system broadcast message and solving in collision message when not carrying Backoff time information, mobile communication
Terminal can restart the random access procedure for being currently based on competition immediately.
It should be noted that MSG3 described in the present embodiment are as follows: request (RRC is established in wireless heterogeneous networks connection
Connection Setup Request) message, radio resource control connection reestablishment request (RRC Connection Re-
Establishment Request) message or wireless heterogeneous networks connect recovery request (RRC Connection Resume
Request) message.It is corresponding, when network side equipment receives the random access request of mobile communication terminal, MSG4 are as follows: wireless
(RRC Connection Setup) message, radio resource control connection reestablishment (RRC is established in resources control connection
Connection Re-establishment) message or wireless heterogeneous networks connection restore (RRC Connection Resume)
Message；When the random access request of network side equipment refusal mobile communication terminal, MSG4 are as follows: wireless heterogeneous networks connection is established
Refuse (RRC Connection Setup Reject) message, radio resource control connection reestablishment refuses (RRC Connection
Re-establishment Reject) message or wireless heterogeneous networks connection restore refusal (RRC Connection Resume
Reject) message.Specifically, if the MSG3 is wireless heterogeneous networks, request message is established in connection, and the MSG4 is wireless
Message is established in resources control connection or refuse information is established in wireless heterogeneous networks connection；If the MSG3 is wireless heterogeneous networks company
Reconstruction request message is connect, then the MSG4 is that radio resource control connection reestablishment message or radio resource control connection reestablishment are refused
Message；If the MSG3 is that wireless heterogeneous networks connect recovery request message, the MSG4 is that wireless heterogeneous networks connection is extensive
Multiple message or wireless heterogeneous networks connect recovery refuse information.
In the embodiment of the present invention, mobile communication terminal is provided with first for controlling the waiting time for solving collision message
The second timer of timer and the waiting time for controlling MSG4.The distribution of mobile communication terminal to network side equipment is single
First DU sends message MSG3, and activates first timer；Solution conflict is not received before the first timer time-out to disappear
When breath, random access procedure competition-based is restarted；The solution conflict is received before the first timer time-out to disappear
Breath, and the solutions collision message indicates when competing successfully, stops the first timer, and activate second timer.It compares
In the timer for the waiting time for being provided only for control MSG4 in the prior art, mobile communication terminal of the invention is fixed first
When device time-out before do not receive solve collision message when, random access procedure competition-based can be restarted, arrived without waiting
Second timer is overtime and just restarts random access procedure competition-based when not receiving MSG4, so as to shorten first
Solution collision message is not received before timer expiry, that is, the mobile communication terminal for competing failure restarts random access procedure
Time, the mobile communication terminal for promoting competition failure complete the efficiency of random access procedure.
The present invention also provides a kind of mobile communication terminals, as shown in figure 3, mobile communication terminal 300 includes:
Transceiver 301, for sending message MSG3 to the distributed unit DU of network side equipment；
Processor 302, for swashing after transceiver 301 sends message MSG3 to the distributed unit DU of network side equipment
First timer living；
When not receiving solution collision message before the first timer time-out, random access competition-based is restarted
Process；
The solution collision message is received before the first timer time-out, and the solution collision message indicates
When competing successfully, stop the first timer, and almost second timer；
Wherein, the first timer is used to control the waiting time for solving collision message, the second timer
For controlling the waiting time of MSG3.
Optionally, processor 302 are also used to receive the solution conflict before the first timer is overtime and disappear
Breath, and when solution collision message instruction competition failure, restart random access procedure competition-based.
Optionally, processor 302 are also used to not receive solution collision message before the first timer time-out
When, random access procedure competition-based is restarted according to the Backoff time information carried in system broadcast message；
And/or
When receiving the solution collision message before the first timer time-out, and the solution collision message refers to
When showing competition failure, current base is restarted according to the Backoff time information carried in the solution collision message or system broadcast message
In the random access procedure of competition.
Optionally, processor 302 are also used to receive before the first timer for the first no of the MSG3
When determining response NACK message, the first timer is reset；
Transceiver 301, after being also used to the first timer described in the processor reset, again to described in DU transmission
MSG3。
Optionally, processor 302 are also used to receive before the second timer time-out and the MSG3 are successfully decoded
When, stop the second timer；
When the MSG3 is not successfully decoded in reception list before the second timer time-out, the 2nd NACK message is sent
To the DU, and reset the second timer；
When not receiving the MSG3 before the second timer time-out, random access competition-based is restarted
Process.
Optionally, if the MSG3 is that request message is established in wireless heterogeneous networks connection, the MSG4 is radio resource
Message is established in control connection or refuse information is established in wireless heterogeneous networks connection；
If the MSG3 is radio resource control connection reestablishment request message, the MSG4 is wireless heterogeneous networks connection
Rebuild message or radio resource control connection reestablishment refuse information；
If the MSG3 is that wireless heterogeneous networks connect recovery request message, the MSG4 is wireless heterogeneous networks connection
Restore message or wireless heterogeneous networks connect recovery refuse information.
It should be noted that above-mentioned mobile communication terminal 300 can be method reality in the embodiment of the present invention in the present embodiment
Apply the mobile communication terminal of any embodiment in example, in the embodiment of the present invention in embodiment of the method mobile communication terminal it is any
Embodiment can be realized by the above-mentioned mobile communication terminal 300 in the present embodiment, and reach identical beneficial effect,
Details are not described herein again.
The present invention also provides a kind of mobile communication terminal, as shown in figure 4, mobile communication terminal 400 include: memory 401,
Processor 402 and it is stored in the computer program 4011 that can be run on memory 401 and on the processor 402, computer program
4011 realize following steps when being executed by processor 402:
Message MSG3 is sent to the distributed unit DU of network side equipment, and activates first timer；
When not receiving solution collision message before the first timer time-out, random access competition-based is restarted
Process；
The solution collision message is received before the first timer time-out, and the solution collision message indicates
When competing successfully, stop the first timer, and activate second timer；
Wherein, the first timer is used to control the waiting time for solving collision message, the second timer
For controlling the waiting time of MSG4.
Optionally, following steps can also be realized when computer program 4011 is executed by processor 402:
The solution collision message is received before the first timer time-out, and the solution collision message indicates
When competition failure, random access procedure competition-based is restarted.
Optionally, following steps can also be realized when computer program 4011 is executed by processor 402:
When not receiving solution collision message before the first timer time-out, carried according in system broadcast message
Backoff time information restart random access procedure competition-based；
And/or
The solution collision message is received before the first timer time-out, and the solution collision message indicates
When competition failure, is restarted according to the Backoff time information carried in the solution collision message or system broadcast message and be currently based on
The random access procedure of competition.
Optionally, following steps can also be realized when computer program 4011 is executed by processor 402:
When receiving the first negative response NACK message for the MSG3 before the first timer time-out, weight
Set return after the first timer it is described send MSG3 to the distributed unit DU of network side equipment, and activate first timer
The step of.
Optionally, following steps can also be realized when computer program 4011 is executed by processor 402:
When receiving before the second timer time-out and the MSG4 is successfully decoded, stop the second timer；
When receiving before second timer time-out but decode the MSG4 not successfully, send the 2nd NACK message to
The DU, and reset the second timer；
When not receiving the MSG4 before the second timer time-out, random access competition-based is restarted
Process.
Optionally, if the MSG3 is that request message is established in wireless heterogeneous networks connection, the MSG4 is radio resource
Message is established in control connection or refuse information is established in wireless heterogeneous networks connection；
If the MSG3 is radio resource control connection reestablishment request message, the MSG4 is wireless heterogeneous networks connection
Rebuild message or radio resource control connection reestablishment refuse information；
If the MSG3 is that wireless heterogeneous networks connect recovery request message, the MSG4 is wireless heterogeneous networks connection
Restore message or wireless heterogeneous networks connect recovery refuse information.
It should be noted that above-mentioned mobile communication terminal can be embodiment of the method in the embodiment of the present invention in the present embodiment
In any embodiment mobile communication terminal, in the embodiment of the present invention in embodiment of the method mobile communication terminal any implementation
Mode can be realized by the above-mentioned mobile communication terminal in the present embodiment, and reach identical beneficial effect, herein not
It repeats again.
On the other hand, network side equipment in the prior art, only to the mobile communication terminal hair for initiating random access request
Send be used to indicate mobile communication terminal compete successfully but random access request be rejected, compete successfully but and machine access request connect
By or competition failure three types information.For competition failure or compete successfully but random access request is rejected, i.e., with
The mobile communication terminal of machine access failure may restart accumulation access process competition-based simultaneously, and competition is caused to occur again
Congested problem causes the probability of mobile communication terminal competition failure higher.
Therefore, the embodiment of the present invention also provides a kind of accidental access method, is applied to network side equipment, comprising:
Rollback temporal information is sent to the mobile communication terminal of random access failure.Further, Backoff time information can
To be carried in system broadcast message.For the network side equipment of overall architecture, Backoff time information can also be carried on MSG4
In；For the network side equipment of separation architecture, Backoff time information, which can be carried on, to be solved in collision message, the embodiment of the present invention
This is not construed as limiting.
Specifically, if Backoff time information instruction Backoff time is 0, mobile communication terminal can restart immediately based on competing
The random access procedure striven；If Backoff time information indicates that Backoff time is T, mobile communication terminal retracts, i.e. waiting time T
Afterwards, restarting random access procedure competition-based.Certainly, network side equipment may be that each/group mobile communication terminal is set
Different waiting time T is set, it is competition-based so as to effectively avoid excessive mobile communication terminal from restarting in the same time
Access process is accumulated, mobile communication terminal is improved and competes successful probability.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored on the computer readable storage medium
Computer program, the computer program realize each process of above-mentioned accidental access method embodiment when being executed by processor,
And identical technical effect can be reached, to avoid repeating, which is not described herein again.The computer readable storage medium, such as only
Read memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation
RAM), magnetic or disk etc..
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (14)
1. a kind of accidental access method is used for mobile communication terminal characterized by comprising
Message MSG3 is sent to the distributed unit DU of network side equipment, and activates first timer；
When not receiving solution collision message before the first timer time-out, random access stream competition-based is restarted
Journey；
The solution collision message, and solution collision message instruction competition are received before the first timer time-out
When success, stop the first timer, and activate second timer；
Wherein, the first timer is used to control the waiting time for solving collision message, and the second timer is used for
Control the waiting time of MSG4.
2. accidental access method according to claim 1, which is characterized in that the activation first timer the step of it
Afterwards, further includes:
The solution collision message, and solution collision message instruction competition are received before the first timer time-out
When failure, random access procedure competition-based is restarted.
3. accidental access method according to claim 2, which is characterized in that described before the first timer time-out
It does not receive when solving collision message, the step of restarting random access procedure competition-based, specifically includes:
When not receiving solution collision message before the first timer time-out, returned according to what is carried in system broadcast message
It moves back temporal information and restarts random access procedure competition-based；
And/or
It is described to receive the solution collision message before the first timer time-out, and the solution collision message indicates
When competition failure, the step of restarting the random access procedure for being currently based on competition, specifically include:
The solution collision message, and solution collision message instruction competition are received before the first timer time-out
When failure, is restarted according to the Backoff time information carried in the solution collision message or system broadcast message and be currently based on competition
Random access procedure.
4. accidental access method according to claim 1, which is characterized in that the activation first timer the step of it
Afterwards, further includes:
When receiving the first negative response NACK message for the MSG3 before the first timer time-out, institute is reset
State return after first timer it is described send MSG3 to the distributed unit DU of network side equipment, and activate the step of first timer
Suddenly.
5. accidental access method according to any one of claim 1 to 4, which is characterized in that fixed in the activation second
When device the step of after, further includes:
When receiving before the second timer time-out and the MSG4 is successfully decoded, stop the second timer；
When receiving before the second timer time-out but decode the MSG4 not successfully, the 2nd NACK message is sent described in
DU, and reset the second timer；
When not receiving the MSG4 before the second timer time-out, random access stream competition-based is restarted
Journey.
6. accidental access method according to claim 5, which is characterized in that
If the MSG3 is that request message is established in wireless heterogeneous networks connection, the MSG4 is that wireless heterogeneous networks connection is established
Refuse information is established in message or wireless heterogeneous networks connection；
If the MSG3 is radio resource control connection reestablishment request message, the MSG4 is radio resource control connection reestablishment
Message or radio resource control connection reestablishment refuse information；
If the MSG3 is that wireless heterogeneous networks connect recovery request message, the MSG4 is that wireless heterogeneous networks connection restores
Message or wireless heterogeneous networks connect recovery refuse information.
7. a kind of mobile communication terminal characterized by comprising
Transceiver, for sending message MSG3 to the distributed unit DU of network side equipment；
Processor, for activating first after the transceiver sends message MSG3 to the distributed unit DU of network side equipment
Timer；
When not receiving solution collision message before the first timer time-out, random access stream competition-based is restarted
Journey；
The solution collision message, and solution collision message instruction competition are received before the first timer time-out
When success, stop the first timer, and almost second timer；
Wherein, the first timer is used to control the waiting time for solving collision message, and the second timer is used for
Control the waiting time of MSG4.
8. mobile communication terminal according to claim 7, which is characterized in that the processor is also used to described first
The solution collision message is received before timer expiry, and when solution collision message instruction competition failure, restarts base
In the random access procedure of competition.
9. mobile communication terminal according to claim 8, which is characterized in that the processor is also used to described first
When not receiving solution collision message before timer expiry, restarted according to the Backoff time information carried in system broadcast message
Random access procedure competition-based；
And/or
When receiving the solution collision message before the first timer time-out, and solution collision message instruction is competing
When striving unsuccessfully, restarted according to the Backoff time information that carries in the solution collision message or system broadcast message be currently based on it is competing
The random access procedure striven.
10. mobile communication terminal according to claim 7, which is characterized in that the processor is also used to described first
When receiving the first negative response NACK message for the MSG3 before timer, the first timer is reset；
The transceiver, after being also used to the first timer described in the processor reset, again to described in DU transmission
MSG3。
11. mobile communication terminal according to any one of claims 7 to 10, which is characterized in that the processor is also used
When receiving before the second timer time-out and the MSG4 is successfully decoded, stop the second timer；
When the MSG4 is not successfully decoded in reception list before the second timer time-out, the 2nd NACK message is sent to institute
DU is stated, and resets the second timer；
When not receiving the MSG4 before the second timer time-out, random access stream competition-based is restarted
Journey.
12. mobile communication terminal according to claim 11, which is characterized in that
If the MSG3 is that request message is established in wireless heterogeneous networks connection, the MSG4 is that wireless heterogeneous networks connection is established
Refuse information is established in message or wireless heterogeneous networks connection；
If the MSG3 is radio resource control connection reestablishment request message, the MSG4 is radio resource control connection reestablishment
Message or radio resource control connection reestablishment refuse information；
If the MSG3 is that wireless heterogeneous networks connect recovery request message, the MSG4 is that wireless heterogeneous networks connection restores
Message or wireless heterogeneous networks connect recovery refuse information.
13. a kind of mobile communication terminal, including memory, processor and it is stored on the memory and can be in the processor
The computer program of upper operation, which is characterized in that such as claim 1 is realized when the computer program is executed by the processor
To accidental access method described in any one of 6.
14. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
Such as accidental access method described in any one of claims 1 to 6 is realized when being executed by processor.
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