CN108617003A - The method, apparatus and user equipment of quick random access - Google Patents
The method, apparatus and user equipment of quick random access Download PDFInfo
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- CN108617003A CN108617003A CN201611140968.XA CN201611140968A CN108617003A CN 108617003 A CN108617003 A CN 108617003A CN 201611140968 A CN201611140968 A CN 201611140968A CN 108617003 A CN108617003 A CN 108617003A
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- 238000000034 method Methods 0.000 title claims abstract description 78
- 230000011664 signaling Effects 0.000 claims abstract description 78
- 230000004044 response Effects 0.000 claims description 58
- 230000005540 biological transmission Effects 0.000 claims description 28
- 238000012545 processing Methods 0.000 claims description 26
- 238000012546 transfer Methods 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000004904 shortening Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
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- 238000004891 communication Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The present invention provides a kind of method, apparatus and user equipment of quick random access.The method includes：RRC signaling message is received, the RRC signaling message is configured with the information of the quick random access of application；Quick random access is executed according to the RRC signaling message.The present invention can apply the information of signal deployment or preset quick random access, execute quick random access, shorten the random access required time.
Description
Technical field
The present invention relates to the method, apparatus and user of wireless communication technology field more particularly to a kind of quick random access
Equipment.
Background technology
In LTE, random access is a basic function, and UE obtains uplink only by random access procedure with system
After synchronizing, the transmission of uplink can be carried out by system call.Random access in LTE is divided into competition-based to be connect at random
Enter and two kinds of forms of non-competing random access.
Random access procedure competition-based includes：UE sends random access lead code to base station；Base station detects leading
After code, random access response is sent to UE；After UE receives random access response, upstream data (MSG3), base are sent to base station
Standing, it is anti-to send HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat-request) to UE for MSG3
Feedback；After base station receives upstream data, contention resolution message (MSG4) is sent to UE, UE can be sent for MSG4 to base station
HARQ.Non-competing random access procedure includes mainly：Base station is in RRC (Radio Resource Control, radio resource control
System) signaling or downlink dedicated signaling in distribute the lead code of random access；UE sends random access lead code to base station；Base
After station detects lead code, accidental access response message is sent to UE.
In the implementation of the present invention, inventor has found at least to have the following technical problems in the prior art：
In existing LTE protocol, for FDD (Frequency Division Duplex, frequency division duplex) system, with
The processing delay of machine access procedure is 3ms, and TTI (Transmission Time Interval, Transmission Time Interval) is 1ms.
In order to obtain better efficiency of transmission, LTE will introduce shorter processing delay or shorter TTI, for example it is 2ms to introduce length
Processing delay or length be 0.5ms TTI.For application shorten processing delay or shorten TTI UE, using it is existing with
Machine access procedure can spend the time with common UE as many, cannot shorten the processing delay in random access procedure, influence to answer
With the effect for shortening processing delay and shortening TTI.
Invention content
The method, apparatus and user equipment of quick random access provided by the invention can apply quick random access
Information, so as to shorten the random access required time.
In a first aspect, the present invention provides a kind of method of quick random access, it is applied to connected state UE, the method packet
It includes：
RRC signaling message is received, the RRC signaling message is configured with the information of the quick random access of application；
Quick random access is executed according to the RRC signaling message.
Optionally, the information of the quick random access of the application include it is following at least one：
Indicate the setting of the quick random access of execution；
The time interval of base station triggers random access, the time interval are to send instruction from base station to execute random access
Physical down control signaling sends the time interval between lead code to UE；
Monitor random access response time interval, the time interval be since UE send lead code to UE detection with
Time interval between machine access response；
Indicate that the time interval of transfer resource, the time interval are to receive random access from UE to ring in random access response
Message is answered to send the time interval of MSG3 to UE；
The time interval of the time interval that Fast HARQ is fed back in random access procedure, the Fast HARQ feedback includes needle
To the MSG3 that UE is sent, base station sends the time interval of HARQ feedback；And for the MSG4 that base station is sent, it is anti-that UE sends HARQ
The time interval of feedback.
Optionally, before the quick random access according to RRC signaling message execution, the method further includes：
Receive the physical down control signaling that instruction UE executes quick random access.
Optionally, the instruction UE executes the physical down control signaling of quick random access by being controlled in physical down
The certain bits for being introduced into new bit instruction in signaling or being multiplexed in existing physical down control signaling format 1A come
Instruction.
Optionally, for emulative quick random access, after UE sends MSG3 to base station, the method is also wrapped
It includes：
At the appointed time in interval, the HARQ feedback for MSG3 that base station is sent is received；
Receive the MSG4 that base station is sent；
In the specified time interval, the HARQ feedback for MSG4 is sent to base station；
Wherein, the time interval that Fast HARQ is fed back in random access procedure is divided between the specified time.
Optionally, when the information of the quick random access of application only includes that the execution of quick random access is arranged, institute
It states in the time interval of base station triggers random access, the time interval for monitoring random access response, random access response and indicates to pass
The time interval that Fast HARQ is fed back in the time interval and random access procedure of defeated resource is to preset.
Second aspect, the present invention provide a kind of method of quick random access, are applied to Idle state UE, the method packet
It includes：
Receive system information；
Judge whether the system information is configured with the resource for being exclusively used in quick random access, it is described to be exclusively used in quickly at random
The resource of access includes：It is exclusively used in the specific sub-frame of quick random access or the random access resource of time slot, or is exclusively used in fast
The lead code of fast random access；
It is exclusively used in the specific sub-frame of quick random access or the random access resource of time slot when the system information is configured with
When, initiate random access in specific sub-frame or time slot；
When the system information is configured with the lead code for being exclusively used in quick random access, sent to network side described special
Lead code.
Optionally, when not having in the system information comprising the resource for being exclusively used in quick random access, in UE to base station
After sending MSG3, the method further includes：
At the appointed time in interval, the HARQ feedback for MSG3 that base station is sent is received；
Receive the MSG4 that base station is sent；
In the specified time interval, the HARQ feedback for MSG4 is sent to base station；
Wherein, the time interval that Fast HARQ is fed back in random access procedure is divided between the specified time.
The third aspect, the present invention provide a kind of device of quick random access, are applied to connected state UE, described device packet
It includes：
First receiving unit, for receiving RRC signaling message, the RRC signaling message is configured with application and quickly connects at random
The information entered；
First processing units, the RRC signaling message execution for being received according to first receiving unit quickly connect at random
Enter.
Optionally, the information of the quick random access of the application include it is following at least one：
Indicate the setting of the quick random access of execution；
The time interval of base station triggers random access, the time interval are to send instruction from base station to execute random access
Physical down control signaling sends the time interval between lead code to UE；
Monitor random access response time interval, the time interval be since UE send lead code to UE detection with
Time interval between machine access response；
Indicate that the time interval of transfer resource, the time interval are to receive random access from UE to ring in random access response
Message is answered to send the time interval of MSG3 to UE；
The time interval of the time interval that Fast HARQ is fed back in random access procedure, the Fast HARQ feedback includes needle
To the MSG3 that UE is sent, base station sends the time interval of HARQ feedback；And for the MSG4 that base station is sent, it is anti-that UE sends HARQ
The time interval of feedback.
Optionally, described device further includes：
Second receiving unit, for quickly being connect at random according to RRC signaling message execution in the first processing units
Before entering, the physical down control signaling that instruction UE executes quick random access is received.
Optionally, the instruction UE executes the physical down control signaling of quick random access by being controlled in physical down
The certain bits for being introduced into new bit instruction in signaling or being multiplexed in existing physical down control signaling format 1A come
Instruction.
Optionally, for emulative quick random access, described device further includes：
Third receiving unit at the appointed time in interval, receives base station and sends after sending MSG3 to base station in UE
The HARQ feedback for MSG3；
4th receiving unit, the MSG4 for receiving base station transmission；
First transmission unit, in the specified time interval, the HARQ feedback for MSG4 to be sent to base station；
Wherein, the time interval that Fast HARQ is fed back in random access procedure is divided between the specified time.
Optionally, when the information of the quick random access of application only includes that the execution of quick random access is arranged, institute
It states in the time interval of base station triggers random access, the time interval for monitoring random access response, random access response and indicates to pass
The time interval that Fast HARQ is fed back in the time interval and random access procedure of defeated resource is to preset.
Fourth aspect, the present invention provide a kind of device of quick random access, are applied to Idle state UE, described device packet
It includes：
5th receiving unit, for receiving system information；
Judging unit, for judge system information that the 5th receiving unit receives whether be configured be exclusively used in quickly with
The resource of machine access, the resource for being exclusively used in quick random access include：Be exclusively used in quick random access specific sub-frame or
The random access resource of time slot, or it is exclusively used in the lead code of quick random access；
Second processing unit, for when the system information be configured be exclusively used in quick random access specific sub-frame or when
When the random access resource of gap, random access is initiated in specific sub-frame or time slot；
Third processing unit, for when the system information is configured with the lead code for being exclusively used in quick random access, to
Network side sends the dedicated lead code.
Optionally, when not having in the system information comprising the resource for being exclusively used in quick random access, described device is also
Including：
6th receiving unit at the appointed time in interval, receives base station and sends after sending MSG3 to base station in UE
The HARQ feedback for MSG3；
7th receiving unit, the MSG4 for receiving base station transmission；
Second transmission unit, in the specified time interval, the HARQ feedback for MSG4 to be sent to base station；
Wherein, the time interval that Fast HARQ is fed back in random access procedure is divided between the specified time.
5th aspect, the present invention provide a kind of user equipment, and the user equipment includes above application in connected state UE
The device of quick random access.
6th aspect, the present invention provide a kind of user equipment, and the user equipment includes above application in Idle state UE
The device of quick random access.
The method, apparatus and user equipment of quick random access provided in an embodiment of the present invention can apply signal deployment
Or the information of preset quick random access, execute quick random access.Compared with prior art, can shorten random
Access the required time.
Description of the drawings
Fig. 1 is flow chart of the one embodiment of the invention applied to the method for the quick random access of connected state UE；
Fig. 2 is flow chart of the another embodiment of the present invention applied to the method for the quick random access of connected state UE；
Fig. 3 is flow of the one embodiment of the invention applied to the method for the emulative quick random access of connected state UE
Figure；
Fig. 4 is flow chart of the one embodiment of the invention applied to the method for the quick random access of Idle state UE；
Fig. 5 is flow of the another embodiment of the present invention applied to the method for the emulative quick random access of Idle state UE
Figure；
Fig. 6 is structural schematic diagram of the one embodiment of the invention applied to the device of the quick random access of connected state UE；
Fig. 7 is structural schematic diagram of the another embodiment of the present invention applied to the device of the quick random access of connected state UE；
Fig. 8 is that one embodiment of the invention is shown applied to the structure of the device of the emulative quick random access of connected state UE
It is intended to；
Fig. 9 is structural schematic diagram of the one embodiment of the invention applied to the device of the quick random access of Idle state UE；
Figure 10 is structure of the one embodiment of the invention applied to the device of the emulative quick random access of Idle state UE
Schematic diagram.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention provides a kind of method of quick random access, is applied to connected state UE, as shown in Figure 1, the method packet
It includes：
S11, RRC signaling message is received, the RRC signaling message is configured with the information of the quick random access of application；
S12, quick random access is executed according to the RRC signaling message.
In general, RRC signaling enables for RRC connection reconfiguration confidences.
Optionally, the information of the quick random access of application includes：(1) instruction execute quick random access setting,
(2) time interval of base station triggers random access, (3) are monitored in the time interval of random access response, (4) random access response
Indicate that the time interval that Fast HARQ is fed back in the time interval of transfer resource, (5) random access procedure, RRC signaling message are matched
It is equipped at least one in above- mentioned information.These information are illustrated below：
(1) instruction executes the setting (such as quick random access is set as Setup) of quick random access, if RRC signaling disappears
Breath is configured with this information, can indicate that the random access executed after UE is quick random access；
(2) time interval of base station triggers random access, the time interval are to send instruction execution from base station to connect at random
The physical down control signaling entered sends the time interval between lead code to UE.
In the prior art, the random access procedure of base station triggers, if base station is in the downlink of subframe n transmission triggering random access
Control signaling, then UE is in subframe n+k1 (k1>=6) random access lead code (preamble) is sent, UE will be prevented from obtaining
Scheduling resource quickly.The time interval of the base station triggers random access of RRC signaling message configuration of the present invention, can be in subframe n
After the descending control signaling for sending triggering random access, UE is made to send random access lead code in subframe n+4 or in subframe n+5
(preamble), time delay is shortened；Or base station sends the downlink control of triggering random access in the first or second time slot of subframe n
After signaling processed, UE is made to send random access lead code in subframe n+4 or in the first or second time slot of subframe n+5
(preamble), time delay is shortened.
(3) time interval of random access response is monitored, the time interval is to be examined since UE sends lead code to UE
Survey the time interval between random access response.
In existing protocol, for UE after subframe n has sent Preamble, UE detects random access since subframe n+3
Response.The time interval of the monitoring random access response of RRC signaling message of the present invention configuration, can make UE from subframe n+2 (or
Shorter time interval) start to detect random access response, it can be further the delay reduction 1ms of random access.
(4) indicate that the time interval of transfer resource, the time interval are to be connect at random from UE receptions in random access response
Entering the time interval that response message sends MSG3 to UE, wherein MSG3 refers to the Article 3 message in random access procedure, because
During random access, the content of these message is not fixed, and what may sometimes be carried is RRC connection request, sometimes may be used
Energy can be with some control messages even business data packet, therefore referred to as MSG3；
In the prior art, the emulative random access initiated for UE, for example rung when UE receives random access in subframe n
After answering (Random Access Response), UE is needed according to the scheduling resource in random access response, in subframe n+k2
(k2>=6) uplink transmission block (MSG3) is sent, this also results in the expense of long period.RRC signaling message configuration of the present invention
The time interval that transfer resource is indicated in random access response, can receive random access response (Random in UE in subframe n
Access Response) after, send uplink transmission block (MSG3) in subframe n+4 or subframe n+5.
(5) time interval that Fast HARQ is fed back in random access procedure, the time interval packet of the Fast HARQ feedback
The MSG3 sent for UE is included, base station sends the time interval of HARQ feedback；And it is sent for the MSG4 that base station is sent, UE
The time interval of HARQ feedback；Wherein, MSG4 refers to the contention resolution message of base station transmission.
In existing protocol, for the MSG3 that emulative random access, UE are sent, base station needs to send HARQ
(Hybrid Automatic Repeat reQuest, hybrid automatic repeat-request) is fed back；The MSG4, UE that same base station is sent
It is also required to send HARQ feedback.Existing HARQ feedback processing delay is at least 3 milliseconds and (is 3ms in FDD, is at least in TDD
3ms.In FDD, UE receives data in subframe n, needs to send HARQ feedback in subframe n+4, and 3ms during which is processing delay),
For the UE of the quick random access of present invention application, it is possible to reduce the processing delay of HARQ feedback allows base station or UE to use
The processing delay of shortening is fed back, and further, base station configures the place of the HARQ feedback of MSG3/4 in random access in RRC signaling
It is 2 milliseconds or 1 millisecond to manage time delay.
If UE supports to shorten Transmission Time Interval, i.e. base station can adjust in the shortening Transmission Time Interval less than 1ms
UE is spent, above-mentioned time interval can not be as unit of ms at this time, and it is unit that can take time slot (0.5ms), or is taken shorter
Chronomere is such as with symbol (symbol) number for unit, and as indicated in random access response, the time interval of transfer resource can take
For 4.25ms.
Optionally, if there is no the setting that configuration instruction executes quick random access in RRC signaling message, described
Before executing quick random access according to the RRC signaling message, as shown in Fig. 2, the method further includes：
S13, the physical down control signaling that instruction UE executes quick random access is received.
Optionally, the instruction UE executes the physical down control signaling of quick random access by being controlled in physical down
The certain bits for being introduced into new bit instruction in signaling or being multiplexed in existing physical down control signaling format 1A come
Instruction.
Optionally, for emulative quick random access, after UE sends MSG3 to base station, as shown in figure 3, described
Method further includes：
S21, at the appointed time interval in, receive base station send the HARQ feedback for MSG3；
S22, the MSG4 that base station is sent is received；
S23, in the specified time interval, to base station send for MSG4 HARQ feedback；
Wherein, the specific identifier for applying quick random access in the MSG3 comprising instruction UE, such as passes through spy in MAC header
Fixed Logic Channel Identifier indicates that oneself applies quick random access；It is divided between the specified time in random access procedure quickly
The time interval of HARQ feedback.
Optionally, when the information of the quick random access of application only includes that the execution of quick random access is arranged, institute
It states in the time interval of base station triggers random access, the time interval for monitoring random access response, random access response and indicates to pass
The time interval that Fast HARQ is fed back in the time interval and random access procedure of defeated resource presets for agreement.
The present invention provides a kind of method of quick random access, is applied to Idle state UE, as shown in figure 4, the method packet
It includes：
S31, system information is received；
S32, judge whether the system information is configured with the resource for being exclusively used in quick random access, it is described to be exclusively used in quickly
The resource of random access includes：It is exclusively used in the specific sub-frame of quick random access or the random access resource of time slot or special
In the lead code of quick random access；
S33, the specific sub-frame of quick random access or the random access of time slot are exclusively used in when the system information is configured with
When resource, random access is initiated in specific sub-frame or time slot；It is exclusively used in quick random access when the system information is configured with
When lead code, the dedicated lead code is sent to network side.
Optionally, when not having in the system information comprising the resource for being exclusively used in quick random access, UE is initiated
Emulative random access, UE to base station send MSG3 after, as shown in figure 5, the method further includes：
S41, at the appointed time interval in, receive base station send the HARQ feedback for MSG3；
S42, the MSG4 that base station is sent is received；
S43, in the specified time interval, to base station send for MSG4 HARQ feedback；
Wherein, the specific identifier for applying quick random access in the MSG3 comprising instruction UE, such as passes through spy in MAC header
Fixed Logic Channel Identifier indicates that oneself applies quick random access；It is divided between the specified time in random access procedure quickly
The time interval of HARQ feedback.
The method of quick random access provided in an embodiment of the present invention can apply signal deployment or preset fast
The information of fast random access executes quick random access.Compared with prior art, can shorten random access it is required when
Between.
The embodiment of the present invention also provides a kind of device of quick random access, is applied to connected state UE, as shown in fig. 6, institute
Stating device includes：
First receiving unit 11, for receiving RRC signaling message, it is quickly random that the RRC signaling message is configured with application
The information of access；
First processing units 12, RRC signaling message execution for being received according to first receiving unit 11 quickly with
Machine accesses.
Optionally, the information of the quick random access of application includes：(1) instruction execute quick random access setting,
(2) time interval of base station triggers random access, (3) are monitored in the time interval of random access response, (4) random access response
Indicate that the time interval that Fast HARQ is fed back in the time interval of transfer resource, (5) random access procedure, RRC signaling message are matched
It is equipped at least one in above- mentioned information.These information are illustrated below：
(1) instruction executes the setting (such as quick random access is set as Setup) of quick random access, if RRC signaling disappears
Breath is configured with this information, can indicate that the random access executed after UE is quick random access；
(2) time interval of base station triggers random access, the time interval are to send instruction execution from base station to connect at random
The physical down control signaling entered sends the time interval between lead code to UE.
In the prior art, the random access procedure of base station triggers, if base station is in the downlink of subframe n transmission triggering random access
Control signaling, then UE is in subframe n+k1 (k1>=6) random access lead code (preamble) is sent, UE will be prevented from obtaining
Scheduling resource quickly.The time interval of the base station triggers random access of RRC signaling message configuration of the present invention, can be in subframe n
After the descending control signaling for sending triggering random access, UE is made to send random access lead code in subframe n+4 or in subframe n+5
(preamble), time delay is shortened.
(3) time interval of random access response is monitored, the time interval is to be examined since UE sends lead code to UE
Survey the time interval between random access response.
In existing protocol, for UE after subframe n has sent Preamble, UE detects random access since subframe n+3
Response.The time interval of the monitoring random access response of RRC signaling message of the present invention configuration, can make UE from subframe n+2 (or
Shorter time interval) start to detect random access response, it can be further the delay reduction 1ms of random access.
(4) indicate that the time interval of transfer resource, the time interval are to be connect at random from UE receptions in random access response
Entering the time interval that response message sends MSG3 to UE, wherein MSG3 refers to the Article 3 message in random access procedure, because
During random access, the content of these message is not fixed, and what may sometimes be carried is RRC connection request, sometimes may be used
Energy can be with some control messages even business data packet, therefore referred to as MSG3；
In the prior art, the emulative random access initiated for UE, for example rung when UE receives random access in subframe n
After answering (Random Access Response), UE is needed according to the scheduling resource in random access response, in subframe n+k2
(k2>=6) uplink transmission block (MSG3) is sent, this also results in the expense of long period.RRC signaling message configuration of the present invention
The time interval that transfer resource is indicated in random access response, can receive random access response (Random in UE in subframe n
Access Response) after, send uplink transmission block (MSG3) in subframe n+4 or subframe n+5.
(5) time interval that Fast HARQ is fed back in random access procedure, the time interval packet of the Fast HARQ feedback
The MSG3 sent for UE is included, base station sends the time interval of HARQ feedback；And it is sent for the MSG4 that base station is sent, UE
The time interval of HARQ feedback；Wherein, MSG4 refers to the contention resolution message of base station transmission.
In existing protocol, for the MSG3 that emulative random access, UE are sent, base station needs to send HARQ feedback；
The MSG4 that same base station is sent, UE are also required to HARQ feedback.Existing HARQ feedback processing delay is 3 milliseconds, for the present invention
Using the UE of quick random access, it is possible to reduce the processing delay of HARQ feedback allows base station or UE using the processing shortened
Time delay feedback, further, the processing delay that base station configures the HARQ feedback of MSG3/4 in random access in RRC signaling are 2
Millisecond or 1 millisecond.
Optionally, as shown in fig. 7, described device further includes：
Second receiving unit 13, for the first processing units 12 according to the RRC signaling message execute quickly with
Before machine access, the physical down control signaling that instruction UE executes quick random access is received.
Optionally, the instruction UE executes the physical down control signaling of quick random access by being controlled in physical down
The certain bits for being introduced into new bit instruction in signaling or being multiplexed in existing physical down control signaling format 1A come
Instruction.
Optionally, for emulative quick random access, as shown in figure 8, described device further includes：
Third receiving unit 21 at the appointed time in interval, receives base station hair after sending MSG3 to base station in UE
The HARQ feedback for MSG3 sent；
4th receiving unit 22, the MSG4 for receiving base station transmission；
First transmission unit 23, in the specified time interval, the HARQ feedback for MSG4 to be sent to base station；
Wherein, the specific identifier for applying quick random access in the MSG3 comprising instruction UE, such as passes through spy in MAC header
Fixed Logic Channel Identifier indicates that oneself applies quick random access；It is divided between the specified time in random access procedure quickly
The time interval of HARQ feedback.
Optionally, when the information of the quick random access of application only includes that the execution of quick random access is arranged, institute
It states in the time interval of base station triggers random access, the time interval for monitoring random access response, random access response and indicates to pass
The time interval that Fast HARQ is fed back in the time interval and random access procedure of defeated resource is to preset.
The embodiment of the present invention also provides a kind of device of quick random access, is applied to Idle state UE, as shown in figure 9, institute
Stating device includes：
5th receiving unit 31, for receiving system information；
Judging unit 32 is exclusively used in soon for judging whether the system information of the 5th receiving unit 31 reception is configured with
The resource of fast random access, the resource for being exclusively used in quick random access include：It is exclusively used in the specific son of quick random access
The random access resource of frame or time slot, or it is exclusively used in the lead code of quick random access；
Second processing unit 33, for when the system information be configured be exclusively used in quick random access specific sub-frame or
When the random access resource of time slot, random access is initiated in specific sub-frame or time slot；
Third processing unit 34, when the system information is configured with the lead code for being exclusively used in quick random access, to net
Network side sends the dedicated lead code.
Optionally, when not having in the system information comprising the resource for being exclusively used in quick random access, as shown in Figure 10,
Described device further includes：
6th receiving unit 41 at the appointed time in interval, receives base station hair after sending MSG3 to base station in UE
The HARQ feedback for MSG3 sent；
7th receiving unit 42, the MSG4 for receiving base station transmission；
Second transmission unit 43, in the specified time interval, the HARQ feedback for MSG4 to be sent to base station；
Wherein, the specific identifier for applying quick random access in the MSG3 comprising instruction UE, such as passes through spy in MAC header
Fixed Logic Channel Identifier indicates that oneself applies quick random access；It is divided between the specified time in random access procedure quickly
The time interval of HARQ feedback.
The device of quick random access provided in an embodiment of the present invention can apply signal deployment or preset fast
The information of fast random access executes quick random access.Compared with prior art, can shorten random access it is required when
Between.
The embodiment of the present invention also provides a kind of user equipment, and the user equipment can be used as connected state UE, can also be used as
Idle state UE, the user equipment include the device of above-mentioned quick random access.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer read/write memory medium
In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, all answer by the change or replacement that can be readily occurred in
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (18)
1. a kind of method of quick random access, which is characterized in that the method includes：
RRC signaling message is received, the RRC signaling message is configured with the information of the quick random access of application；
Quick random access is executed according to the RRC signaling message.
2. according to the method described in claim 1, it is characterized in that, the information of the quick random access of the application includes below extremely
It is one of few：
Indicate the setting of the quick random access of execution；
The time interval of base station triggers random access, the time interval are to send the physics that instruction executes random access from base station
Descending control signaling sends the time interval between lead code to UE；
The time interval of random access response is monitored, the time interval is to detect to connect at random since UE sends lead code to UE
Enter the time interval between response；
Indicate that the time interval of transfer resource, the time interval are to disappear from UE receiving random access responses in random access response
Cease the time interval that UE sends MSG3；
The time interval of the time interval that Fast HARQ is fed back in random access procedure, the Fast HARQ feedback includes being directed to UE
The MSG3 of transmission, base station send the time interval of HARQ feedback；And send HARQ feedback for the MSG4 that base station is sent, UE
Time interval.
3. according to the method described in claim 1, it is characterized in that, it is described according to the RRC signaling message execute quickly with
Before machine access, the method further includes：
Receive the physical down control signaling that instruction UE executes quick random access.
4. according to the method described in claim 3, it is characterized in that, the instruction UE executes the physical down of quick random access
Control signaling indicates or is multiplexed existing physical down control by introducing new bit in physical down control signaling
Certain bits in signaling format 1A indicate.
5. method according to claim 1 or 2, which is characterized in that for emulative quick random access, in UE to base
It stands after sending MSG3, the method further includes：
At the appointed time in interval, the HARQ feedback for MSG3 that base station is sent is received；
Receive the MSG4 that base station is sent；
In the specified time interval, the HARQ feedback for MSG4 is sent to base station；
Wherein, the time interval that Fast HARQ is fed back in random access procedure is divided between the specified time.
6. according to the method described in claim 2, it is characterized in that, when the information of the quick random access of application only includes to set
When setting the execution of quick random access, the time interval of the base station triggers random access, the time for monitoring random access response
Between interval, the time that Fast HARQ is fed back in the time interval of instruction transfer resource and random access procedure in random access response
It is divided into and presets.
7. a kind of method of quick random access, which is characterized in that the method includes：
Receive system information；
Judge whether the system information is configured with the resource for being exclusively used in quick random access, it is described to be exclusively used in quick random access
Resource include：Be exclusively used in the specific sub-frame of quick random access or the random access resource of time slot, or be exclusively used in quickly with
The lead code of machine access；
When the system information be configured be exclusively used in quick random access specific sub-frame or time slot random access resource when,
Specific sub-frame or time slot initiate random access；
When the system information is configured with the lead code for being exclusively used in quick random access, to network side send it is described it is dedicated before
Leading code.
8. the method according to the description of claim 7 is characterized in that in the system information not comprising be exclusively used in quickly with
When the resource of machine access, after UE sends MSG3 to base station, the method further includes：
At the appointed time in interval, the HARQ feedback for MSG3 that base station is sent is received；
Receive the MSG4 that base station is sent；
In the specified time interval, the HARQ feedback for MSG4 is sent to base station；
Wherein, the time interval that Fast HARQ is fed back in random access procedure is divided between the specified time.
9. a kind of device of quick random access, which is characterized in that described device includes：
First receiving unit, for receiving RRC signaling message, the RRC signaling message is configured with the quick random access of application
Information；
First processing units, the RRC signaling message for being received according to first receiving unit execute quick random access.
10. device according to claim 9, which is characterized in that the information of the quick random access of application includes following
At least one：
Indicate the setting of the quick random access of execution；
The time interval of base station triggers random access, the time interval are to send the physics that instruction executes random access from base station
Descending control signaling sends the time interval between lead code to UE；
The time interval of random access response is monitored, the time interval is to detect to connect at random since UE sends lead code to UE
Enter the time interval between response；
Indicate that the time interval of transfer resource, the time interval are to disappear from UE receiving random access responses in random access response
Cease the time interval that UE sends MSG3；
The time interval of the time interval that Fast HARQ is fed back in random access procedure, the Fast HARQ feedback includes being directed to UE
The MSG3 of transmission, base station send the time interval of HARQ feedback；And send HARQ feedback for the MSG4 that base station is sent, UE
Time interval.
11. device according to claim 9, which is characterized in that described device further includes：
Second receiving unit, for the first processing units according to the RRC signaling message execute quick random access it
Before, receive the physical down control signaling that instruction UE executes quick random access.
12. according to the devices described in claim 11, which is characterized in that the instruction UE is executed under the physics of quick random access
Row control signaling indicates or is multiplexed existing physical down control by introducing new bit in physical down control signaling
Certain bits in signaling format 1A processed indicate.
13. device according to claim 9 or 10, which is characterized in that for emulative quick random access, the dress
It sets and further includes：
Third receiving unit at the appointed time in interval, receives the needle that base station is sent after sending MSG3 to base station in UE
To the HARQ feedback of MSG3；
4th receiving unit, the MSG4 for receiving base station transmission；
First transmission unit, in the specified time interval, the HARQ feedback for MSG4 to be sent to base station；
Wherein, the time interval that Fast HARQ is fed back in random access procedure is divided between the specified time.
14. device according to claim 10, which is characterized in that when the information of the quick random access of application only includes
When the execution of quick random access is set, the time interval of the base station triggers random access, monitor random access response when
Between interval, the time that Fast HARQ is fed back in the time interval of instruction transfer resource and random access procedure in random access response
Between be divided into and preset.
15. a kind of device of quick random access, which is characterized in that described device includes：
5th receiving unit, for receiving system information；
Judging unit is exclusively used in quickly connecing at random for judging whether the system information of the 5th receiving unit reception is configured with
The resource entered, the resource for being exclusively used in quick random access include：It is exclusively used in the specific sub-frame or time slot of quick random access
Random access resource, or be exclusively used in the lead code of quick random access；
Second processing unit, for being exclusively used in the specific sub-frame or time slot of quick random access when the system information is configured with
When random access resource, random access is initiated in specific sub-frame or time slot；
Third processing unit, for when the system information is configured with the lead code for being exclusively used in quick random access, to network
Side sends the dedicated lead code.
16. device according to claim 15, when not having in the system information comprising being exclusively used in quick random access
When resource, described device further includes：
6th receiving unit at the appointed time in interval, receives the needle that base station is sent after sending MSG3 to base station in UE
To the HARQ feedback of MSG3；
7th receiving unit, the MSG4 for receiving base station transmission；
Second transmission unit, in the specified time interval, the HARQ feedback for MSG4 to be sent to base station；
Wherein, the time interval that Fast HARQ is fed back in random access procedure is divided between the specified time.
17. a kind of user equipment, which is characterized in that the user equipment includes as described in any one of claim 9 to 14
The device of quick random access.
18. a kind of user equipment, which is characterized in that the user equipment includes quick random as described in claim 15 or 16
The device of access.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611140968.XA CN108617003B (en) | 2016-12-12 | 2016-12-12 | Method, device and user equipment for fast random access |
| CN201911280547.0A CN110831233B (en) | 2016-12-12 | 2016-12-12 | Method, device and user equipment for fast random access |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611140968.XA CN108617003B (en) | 2016-12-12 | 2016-12-12 | Method, device and user equipment for fast random access |
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| CN111465112A (en) * | 2019-01-21 | 2020-07-28 | 中兴通讯股份有限公司 | Method and device for sending and processing access control signaling |
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Also Published As
| Publication number | Publication date |
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| CN110831233A (en) | 2020-02-21 |
| CN110831233B (en) | 2022-08-23 |
| CN108617003B (en) | 2021-11-19 |
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