CN108616992A - It is initially accessed distribution method, distributor and the communication equipment of resource - Google Patents
It is initially accessed distribution method, distributor and the communication equipment of resource Download PDFInfo
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- CN108616992A CN108616992A CN201810425907.0A CN201810425907A CN108616992A CN 108616992 A CN108616992 A CN 108616992A CN 201810425907 A CN201810425907 A CN 201810425907A CN 108616992 A CN108616992 A CN 108616992A
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- terminal
- running time
- frequency resource
- distribution
- resource
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/002—Transmission of channel access control information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Abstract
The present invention propose a kind of distribution method of the initial access resource for terminal, distributor, for base station initial access resource distribution method, distributor and communication equipment.Wherein, the distribution method for the initial access resource of terminal includes：Receive the information of system information block；In the information of system information block, the distribution information of the running time-frequency resource for sending random access lead code is obtained, and running time-frequency resource is selected according to distribution information；Random access lead code is sent on running time-frequency resource.Technical solution using the present invention can reduce terminal and send the probability of random access lead code with the terminal selection same running time-frequency resource of other business is supported, reduce the probability that conflict occurs, improve the efficiency of networking.
Description
Technical field
The present invention relates to fields of communication technology, in particular to a kind of distribution of the initial access resource for terminal
Method, distributor, distribution method, distributor and a kind of communication equipment of a kind of initial access resource for base station.
Background technology
Currently, the R＆D work of the 5th Generation Mobile Communication System (5G) is just in progress like a raging fire.It is answered according to following
With demand, 5G systems need to support multiple business scene, wherein this kind of highly reliable low time delay such as unmanned, industrial automation
The communication scenes of (Ultra-reliable and Low Latency Communications, URLLC) receive significant attention,
In addition the application scenarios of 5G also include enhanced mobile broadband (Enhance Mobile Broadband, eMBB), support this two
The terminal of kind of scene carries out initial connection all in GNB (base stations 5G) network with GNB, due to the terminal of URLLC business
It might have upstream data at any time to be transmitted, so for the terminal of URLLC, be also required to more quickly and GNB
Establish initial network entry connection.
In the prior art, UE (User Equipment, user terminal) with base station in order to establish initial connection, based on competing
The mode striven sends preamble (random access lead code), and before sending preamble, UE intercepts the SIB of base station transmission
(system Information Base, system information block) sends the running time-frequency resource of preamble to obtain, it is most likely that supports
The terminal of eMBB and the terminal selection same running time-frequency resource transmission preamble for supporting URLLC, thus will produce conflict, that
Terminal can be again selection running time-frequency resource send preamble, for the terminal of URLLC, when requiring stringent due to it
Prolong, it is clear that the method for the Network with Random Multiple Access System in above-mentioned current mechanism is the demand it is impossible to meet URLLC, needs to be changed
Become.
Invention content
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, one aspect of the present invention is to propose a kind of distribution method being initially accessed resource, it to be used for terminal.
Another aspect of the present invention is to propose a kind of distributor being initially accessed resource, for terminal.
Another aspect of the invention is to propose a kind of distribution method being initially accessed resource, for base station.
An additional aspect of the present invention is to propose a kind of distributor being initially accessed resource, for base station.
An additional aspect of the present invention is to propose a kind of communication equipment.
In view of this, according to an aspect of the present invention, it proposes a kind of distribution methods being initially accessed resource, for eventually
End, method include：Receive the information of system information block；In the information of system information block, before obtaining for sending random access
The distribution information of the running time-frequency resource of leading code, and select running time-frequency resource according to distribution information；Random access is sent on running time-frequency resource
Lead code.
The distribution method provided by the invention for being initially accessed resource, terminal receives the SIB from base station, in SIB, obtains
The distribution information of the running time-frequency resource for sending preamble for the type of service configuration that base station is supported according to terminal, selection correspond to
In the running time-frequency resource of this terminal, preamble is sent on the running time-frequency resource, and then initial connection is established with base station.Using this hair
Bright technical solution can reduce terminal and send preamble's with the terminal selection same running time-frequency resource of other business is supported
Probability reduces the probability that conflict occurs, improves the efficiency of networking.
The distribution method of above-mentioned initial access resource according to the present invention can also have following technical characteristic：
In the above-mentioned technical solutions, it is preferable that specific to wrap in the step of sending random access lead code on running time-frequency resource
It includes：On running time-frequency resource, the random access lead code for presetting leading format is sent, presets the business that leading format is supported with terminal
Type is corresponding；Wherein, the type of service that terminal is supported includes highly reliable low delay, enhanced mobile broadband.
In the technical scheme, the preamble of different leading formats contains the CP (cyclic of different length
Prefix, cyclic prefix), the longer tolerance to delay of CP length is bigger.Therefore, terminal can be according to the type of service of its support
Difference, the preamble of different leading formats is sent on the running time-frequency resource of base station distribution, ensures the delay requirement of terminal.
In any of the above-described technical solution, it is preferable that be designated as only supporting highly reliable low delay or simultaneously in distribution information
Support the running time-frequency resource of the terminal distribution of highly reliable low delay and enhanced mobile broadband, and enhanced mobile wide only to support
The running time-frequency resource of the terminal distribution of band；Wherein, it is only to support highly reliable low delay or support highly reliable low delay and enhancing simultaneously
The quantity of the running time-frequency resource of the terminal distribution of type mobile broadband be more than be only support enhanced mobile broadband terminal distribution when
The quantity of frequency resource.
In the technical scheme, the distribution information of SIB includes the terminal point to support the terminal of URLLC, supporting eMBB
With different running time-frequency resources, specifically, indicating more running time-frequency resource to the terminal for supporting URLLC, when indicating less
Thus frequency resource reduces the terminal due to supporting URLLC and the terminal of eMBB is supported to select same to the terminal for supporting eMBB
Running time-frequency resource conflicts caused by sending preamble, meets the delay requirement of URLLC terminals.It should be noted that for same
When support the terminal of URLLC and eMBB, according to support the terminal distribution running time-frequency resource of URLLC to handle.
In any of the above-described technical solution, it is preferable that distribution information includes distributing to terminal to send different leading formats
The information of random access lead code, wherein the running time-frequency resource that the random access lead code of different leading formats is distributed is different.
In the technical scheme, include the leading format for the preamble that base station is sent according to terminal in distribution information
Difference, the corresponding information for distributing different running time-frequency resources.Terminal can be sent not on the corresponding running time-frequency resource that base station is distributed
With the preamble of leading format, the probability that conflict is generated when sending preamble is further decreased, to avoid gravity treatment time-frequency
Resource sends preamble, improves networking efficiency.
According to another aspect of the present invention, it is proposed that a kind of distributor being initially accessed resource is used for terminal, device
Including：Receiving module, the information for receiving system information block；Distribution module, in the information of system information block, obtaining
Distribution information for the running time-frequency resource for sending random access lead code, and select running time-frequency resource according to distribution information；Send mould
Block, for sending random access lead code on running time-frequency resource.
The distributor provided by the invention for being initially accessed resource, terminal receives the SIB from base station, in SIB, obtains
The distribution information of the running time-frequency resource for sending preamble for the type of service configuration that base station is supported according to terminal, selection correspond to
In the running time-frequency resource of this terminal, preamble is sent on the running time-frequency resource, and then initial connection is established with base station.Using this hair
Bright technical solution can reduce terminal and send preamble's with the terminal selection same running time-frequency resource of other business is supported
Probability reduces the probability that conflict occurs, improves the efficiency of networking.
The distributor of above-mentioned initial access resource according to the present invention can also have following technical characteristic：Above-mentioned
In technical solution, it is preferable that sending module is specifically used on running time-frequency resource, before sending the random access for presetting leading format
It is corresponding with the type of service that terminal is supported to preset leading format for leading code；Wherein, the type of service that terminal is supported includes highly reliable
Low delay, enhanced mobile broadband.
In the technical scheme, the preamble of different leading formats contains the CP of different length, longer pair of CP length
The tolerance of delay is bigger.Therefore, terminal can be according to the difference of the type of service of its support, on the running time-frequency resource of base station distribution
The preamble for sending different leading formats, ensures the delay requirement of terminal.
In any of the above-described technical solution, it is preferable that be designated as only supporting highly reliable low delay or simultaneously in distribution information
Support the running time-frequency resource of the terminal distribution of highly reliable low delay and enhanced mobile broadband, and enhanced mobile wide only to support
The running time-frequency resource of the terminal distribution of band；Wherein, it is only to support highly reliable low delay or support highly reliable low delay and enhancing simultaneously
The quantity of the running time-frequency resource of the terminal distribution of type mobile broadband be more than be only support enhanced mobile broadband terminal distribution when
The quantity of frequency resource.
In the technical scheme, the distribution information of SIB includes the terminal point to support the terminal of URLLC, supporting eMBB
With different running time-frequency resources, specifically, indicating more running time-frequency resource to the terminal for supporting URLLC, when indicating less
Thus frequency resource reduces the terminal due to supporting URLLC and the terminal of eMBB is supported to select same to the terminal for supporting eMBB
Running time-frequency resource conflicts caused by sending preamble, meets the delay requirement of URLLC terminals.It should be noted that for same
When support the terminal of URLLC and eMBB, according to support the terminal distribution running time-frequency resource of URLLC to handle.
In any of the above-described technical solution, it is preferable that distribution information includes distributing to terminal to send different leading formats
The information of random access lead code, wherein the running time-frequency resource that the random access lead code of different leading formats is distributed is different.
In the technical scheme, include the leading format for the preamble that base station is sent according to terminal in distribution information
Difference, the corresponding information for distributing different running time-frequency resources.Terminal can be sent not on the corresponding running time-frequency resource that base station is distributed
With the preamble of leading format, the probability that conflict is generated when sending preamble is further decreased, to avoid gravity treatment time-frequency
Resource sends preamble, improves networking efficiency.
According to a further aspect of the invention, it is proposed that a kind of distribution method being initially accessed resource is used for base station, method
Including：According to the type of service that terminal is supported, to the time-frequency for sending random access lead code in the information of system information block
Resource is allocated；The information of system information block is sent to terminal.
The distribution method provided by the invention for being initially accessed resource, base station is supported in the SIB information of broadcast according to terminal
Different service types utilizing time-frequency for making differentiation for sending the running time-frequency resource of preamble to reduce terminal
Resource sends the possibility clashed when preamble, improves the efficiency that terminal networks.
The distribution method of above-mentioned initial access resource according to the present invention can also have following technical characteristic：
In the above-mentioned technical solutions, it is preferable that the type of service that terminal is supported includes highly reliable low delay, enhanced movement
Broadband；According to the type of service that terminal is supported, to the time-frequency for sending random access lead code in the information of system information block
Resource is allocated, and is specifically included：In the information of system information block, respectively only supports highly reliable low delay or support simultaneously
The terminal of highly reliable low delay and enhanced mobile broadband, the time-frequency money for only supporting the terminal distribution of enhanced mobile broadband different
Source；Wherein, it is only to support highly reliable low delay or support the terminal distribution of highly reliable low delay and enhanced mobile broadband simultaneously
Running time-frequency resource quantity be more than be only support enhanced mobile broadband terminal distribution running time-frequency resource quantity.
In the technical scheme, the time-frequency money respectively supported the terminal of URLLC, support the terminal distribution of eMBB different
Source.Specifically, distributing more running time-frequency resource to the terminal for supporting URLLC by certain proportioning, less running time-frequency resource is distributed
To the terminal for supporting eMBB, thus reduces the terminal due to supporting URLLC and support the terminal selection same time-frequency money of eMBB
Source conflicts caused by sending preamble, meets the delay requirement of URLLC terminals.It should be noted that for supporting simultaneously
The terminal of URLLC and eMBB is handled according to the terminal distribution running time-frequency resource for support URLLC.
In any of the above-described technical solution, it is preferable that before the step of sending the information of system information block to terminal, also
Including：According to terminal send random access lead code leading format, to the running time-frequency resource in the information of system information block into
Row distribution, wherein the running time-frequency resource that is distributed of random access lead code for different leading formats is different.
In the technical scheme, while the different service types supported according to terminal distribute different running time-frequency resources,
Base station is corresponding to distribute different time-frequencies also according to the difference of the leading format of the preamble of terminal transmission in the information of SIB
Resource.Since the preamble of different leading formats contains the CP of different length, and the longer tolerance to delay of CP length is more
Greatly, so by according to different leading formats, different running time-frequency resources should be distributed for terminal-pair, further ensures the time delay of terminal
Demand improves networking efficiency.
According to a further aspect of the invention, it is proposed that a kind of distributor being initially accessed resource is used for base station, device
Including：Distribution module, the type of service for being supported according to terminal, to being used to send random access in the information of system information block
The running time-frequency resource of lead code is allocated；Sending module, the information for sending system information block to terminal.
The distributor provided by the invention for being initially accessed resource, base station is supported in the SIB information of broadcast according to terminal
Different service types utilizing time-frequency for making differentiation for sending the running time-frequency resource of preamble to reduce terminal
Resource sends the possibility clashed when preamble, improves the efficiency that terminal networks.
The distributor of above-mentioned initial access resource according to the present invention can also have following technical characteristic：
In the above-mentioned technical solutions, it is preferable that the type of service that terminal is supported includes highly reliable low delay, enhanced movement
Broadband；Distribution module is specifically used in the information of system information block, respectively only supports highly reliable low delay or support simultaneously
The terminal of highly reliable low delay and enhanced mobile broadband, the time-frequency money for only supporting the terminal distribution of enhanced mobile broadband different
Source；Wherein, it is only to support highly reliable low delay or support the terminal distribution of highly reliable low delay and enhanced mobile broadband simultaneously
Running time-frequency resource quantity be more than be only support enhanced mobile broadband terminal distribution running time-frequency resource quantity.
In the technical scheme, the time-frequency money respectively supported the terminal of URLLC, support the terminal distribution of eMBB different
Source.Specifically, distributing more running time-frequency resource to the terminal for supporting URLLC by certain proportioning, less running time-frequency resource is distributed
To the terminal for supporting eMBB, thus reduces the terminal due to supporting URLLC and support the terminal selection same time-frequency money of eMBB
Source conflicts caused by sending preamble, meets the delay requirement of URLLC terminals.It should be noted that for supporting simultaneously
The terminal of URLLC and eMBB is handled according to the terminal distribution running time-frequency resource for support URLLC.
In any of the above-described technical solution, it is preferable that distribution module is additionally operable to the random access guiding sent according to terminal
The leading format of code, is allocated the running time-frequency resource in the information of system information block, wherein for the random of different leading formats
The running time-frequency resource that access lead code is distributed is different.
In the technical scheme, while the different service types supported according to terminal distribute different running time-frequency resources,
Base station is corresponding to distribute different time-frequencies also according to the difference of the leading format of the preamble of terminal transmission in the information of SIB
Resource.Since the preamble of different leading formats contains the CP of different length, and the longer tolerance to delay of CP length is more
Greatly, so by according to different leading formats, different running time-frequency resources should be distributed for terminal-pair, further ensures the time delay of terminal
Demand improves networking efficiency.
According to a further aspect of the invention, it is proposed that a kind of communication equipment includes the initial access money of any of the above-described
The distributor in source.
Communication equipment provided by the invention includes the distributor of the initial access resource of any of the above-described, can realize
Whole advantageous effects of the distributor of the initial access resource of any of the above-described technical solution.
The additional aspect and advantage of the present invention will become apparent in following description section, or practice through the invention
Recognize.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 shows that the flow of the distribution method of the initial access resource for terminal of one embodiment of the present of invention is shown
It is intended to；
Fig. 2 shows the flows of the distribution method of the initial access resource for terminal of an alternative embodiment of the invention
Schematic diagram；
Fig. 3 shows the schematic block of the distributor of the initial access resource for terminal of one embodiment of the present of invention
Figure；
Fig. 4 shows that the flow of the distribution method of the initial access resource for base station of one embodiment of the present of invention is shown
It is intended to；
Fig. 5 shows the flow of the distribution method of the initial access resource for base station of an alternative embodiment of the invention
Schematic diagram；
Fig. 6 shows the schematic block of the distributor of the initial access resource for base station of one embodiment of the present of invention
Figure.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented different from other modes described here using other, therefore, protection scope of the present invention is not limited to following public affairs
The limitation for the specific embodiment opened.
The embodiment of first aspect present invention proposes a kind of distribution method being initially accessed resource, is used for terminal, and Fig. 1 shows
The flow diagram of the distribution method of the initial access resource for terminal of one embodiment of the present of invention is gone out.Wherein, should
Method includes：
Step 102, the information of system information block is received；
Step 104, in the information of system information block, point of the running time-frequency resource for sending random access lead code is obtained
Running time-frequency resource is selected with information, and according to distribution information；
Step 106, random access lead code preamble is sent on running time-frequency resource.
The distribution method provided by the invention for being initially accessed resource, terminal receives the SIB from base station, in SIB, obtains
The distribution information of the running time-frequency resource for sending preamble for the type of service configuration that base station is supported according to terminal, selection correspond to
In the running time-frequency resource of this terminal, preamble is sent on the running time-frequency resource, and then initial connection is established with base station.Using this hair
Bright technical solution can reduce terminal and send preamble's with the terminal selection same running time-frequency resource of other business is supported
Probability reduces the probability that conflict occurs, improves the efficiency of networking.
Fig. 2 shows the flows of the distribution method of the initial access resource for terminal of an alternative embodiment of the invention
Schematic diagram.Wherein, this method includes：
Step 202, the information of system information block is received；
Step 204, in the information of system information block, point of the running time-frequency resource for sending random access lead code is obtained
Running time-frequency resource is selected with information, and according to distribution information；
Step 206, on running time-frequency resource, send preset leading format random access lead code, preset leading format with
The type of service that terminal is supported is corresponding.
Wherein, the type of service that terminal is supported includes URLLC, eMBB；Distribution information includes distributing to terminal to send not
With the information of the preamble of leading format, wherein the running time-frequency resource that the preamble of different leading formats is distributed is different.
In this embodiment, on the one hand, the preamble of different leading formats contains the CP of different length, and CP length is got over
Length is bigger to the tolerance of delay.On the other hand, in the leading of the distribution information preamble that include base station send according to terminal
The difference of format, the corresponding information for distributing different running time-frequency resources.Therefore, terminal can support service class in base station according to terminal
The leading formats of difference for the preamble that type, terminal are sent and send different leading formats on the running time-frequency resource that distributes
Preamble further decreases the probability that conflict is generated when sending preamble, to avoid gravity treatment running time-frequency resource from sending
Preamble ensures the delay requirement of terminal, improves networking efficiency.For example, PRACH (Physical Random in SIB information
Access Channel, physical layer random access channel) configuration index be 20, then for URLLC terminals can be transmitted preamble
Format be 0 or 1, eMBB terminals send preamble format be 1, wherein leading format is divided into 0 to 4.
Preamble can also carry indicating bit, which shows that terminal is URLLC types of service or eMBB service class
The probability of type, the running time-frequency resource of selection is in different size, and the probability of such initial access network is also different.
Preferably, distribute information in be designated as only support URLLC or support simultaneously URLLC and eMBB terminal distribution when
Frequency resource, and for only support eMBB terminal distribution running time-frequency resource；Wherein, it is only to support URLLC or support URLLC simultaneously
And the quantity of the running time-frequency resource of the terminal distribution of eMBB is more than the quantity of the running time-frequency resource of the terminal distribution only to support eMBB.
In this embodiment, the distribution information of SIB includes the terminal distribution to support the terminal of URLLC, supporting eMBB
Different running time-frequency resources indicates less time-frequency specifically, indicating more running time-frequency resource to the terminal for supporting URLLC
Resource is to the terminal for supporting eMBB, when thus reducing the terminal due to supporting URLLC and the terminal of eMBB being supported to select same
Frequency resource conflicts caused by sending preamble, meets the delay requirement of URLLC terminals.It should be noted that for simultaneously
The terminal for supporting URLLC and eMBB is handled according to the terminal distribution running time-frequency resource for support URLLC.
For example, if base station/cell sends initial access the time-frequency resource allocating of preamble A, whole distribution
Method is more for the running time-frequency resource of the running time-frequency resource ratio eMBB terminal distributions to URLLC terminal distributions, if distribution ratio is 5:2,
It is (5/7) A to the running time-frequency resource of URLLC terminal distributions, the running time-frequency resource to eMBB terminal distributions is (2/7) A.
The embodiment of second aspect of the present invention proposes a kind of distributor being initially accessed resource, is used for terminal, and Fig. 3 shows
The schematic block diagram of the distributor 30 of the initial access resource for terminal of one embodiment of the present of invention is gone out.Wherein, should
Device 30 includes：
Receiving module 302, the information for receiving system information block；Distribution module 304, for the letter in system information block
In breath, the distribution information of the running time-frequency resource for sending random access lead code is obtained, and according to distribution information selection time-frequency money
Source；Sending module 306, for sending random access lead code on running time-frequency resource.
The distributor 30 provided by the invention for being initially accessed resource, terminal receive the SIB from base station and are obtained in SIB
Take the distribution information of the running time-frequency resource for sending preamble for the type of service configuration that base station supports according to terminal, selection pair
The running time-frequency resource of Ying Yuben terminals sends preamble on the running time-frequency resource, and then establishes initial connection with base station.Using this
The technical solution of invention can reduce terminal and send preamble with the terminal selection same running time-frequency resource of other business is supported
Probability, reduce conflict occur probability, improve the efficiency of networking.
Preferably, sending module 306 are specifically used on running time-frequency resource, before sending the random access for presetting leading format
It is corresponding with the type of service that terminal is supported to preset leading format for leading code；Wherein, terminal support type of service include URLLC,
eMBB；Distribution information includes distributing to the information for the preamble that terminal sends different leading formats, wherein different leading lattice
The running time-frequency resource that the preamble of formula is distributed is different.
In this embodiment, on the one hand, the preamble of different leading formats contains the CP of different length, and CP length is got over
Length is bigger to the tolerance of delay.On the other hand, in the leading of the distribution information preamble that include base station send according to terminal
The difference of format, the corresponding information for distributing different running time-frequency resources.Therefore, terminal can support service class in base station according to terminal
The leading formats of difference for the preamble that type, terminal are sent and send different leading formats on the running time-frequency resource that distributes
Preamble further decreases the probability that conflict is generated when sending preamble, to avoid gravity treatment running time-frequency resource from sending
Preamble ensures the delay requirement of terminal, improves networking efficiency.For example, PRACH configuration indexes are 20 in SIB information, then it is right
The format that preamble can be transmitted in URLLC terminals is 0 or 1, and the format that eMBB terminals send preamble is 1, wherein leading
Format is divided into 0 to 4.
Preamble can also carry indicating bit, which shows that terminal is URLLC types of service or eMBB service class
The probability of type, the running time-frequency resource of selection is in different size, and the probability of such initial access network is also different.
Preferably, distribute information in be designated as only support URLLC or support simultaneously URLLC and eMBB terminal distribution when
Frequency resource, and for only support eMBB terminal distribution running time-frequency resource；Wherein, it is only to support URLLC or support URLLC simultaneously
And the quantity of the running time-frequency resource of the terminal distribution of eMBB is more than the quantity of the running time-frequency resource of the terminal distribution only to support eMBB.
In this embodiment, the distribution information of SIB includes the terminal distribution to support the terminal of URLLC, supporting eMBB
Different running time-frequency resources indicates less time-frequency specifically, indicating more running time-frequency resource to the terminal for supporting URLLC
Resource is to the terminal for supporting eMBB, when thus reducing the terminal due to supporting URLLC and the terminal of eMBB being supported to select same
Frequency resource conflicts caused by sending preamble, meets the delay requirement of URLLC terminals.It should be noted that for simultaneously
The terminal for supporting URLLC and eMBB is handled according to the terminal distribution running time-frequency resource for support URLLC.
For example, if base station/cell sends initial access the time-frequency resource allocating of preamble A, whole distribution
Method is more for the running time-frequency resource of the running time-frequency resource ratio eMBB terminal distributions to URLLC terminal distributions, if distribution ratio is 5:2,
It is (5/7) A to the running time-frequency resource of URLLC terminal distributions, the running time-frequency resource to eMBB terminal distributions is (2/7) A.
The embodiment of third aspect present invention proposes a kind of distribution method being initially accessed resource, is used for base station, and Fig. 4 shows
The flow diagram of the distribution method of the initial access resource for base station of one embodiment of the present of invention is gone out.Wherein, should
Method includes：
Step 402, the type of service supported according to terminal, before being used to send random access in the information of system information block
The running time-frequency resource of leading code is allocated；
Step 404, the information of system information block is sent to terminal.
The distribution method provided by the invention for being initially accessed resource, base station is supported in the SIB information of broadcast according to terminal
Different service types utilizing time-frequency for making differentiation for sending the running time-frequency resource of preamble to reduce terminal
Resource sends the possibility clashed when preamble, improves the efficiency that terminal networks.
Preferably, the type of service that terminal is supported includes URLLC, eMBB；Step 402, the service class supported according to terminal
Type is specifically included to being allocated in the information of system information block for sending the running time-frequency resource of random access lead code：It is being
In the information for block of information of uniting, respectively only supports URLLC or support the terminal of URLLC and eMBB simultaneously, only support the end of eMBB
Different running time-frequency resources is distributed at end；Wherein, it is only to support highly reliable low delay or support the terminal distribution of URLLC and eMBB simultaneously
Running time-frequency resource quantity be more than for only support eMBB terminal distribution running time-frequency resource quantity.
In this embodiment, the terminal for respectively supporting URLLC, the running time-frequency resource for supporting the terminal distribution of eMBB different.
Specifically, distributing more running time-frequency resource to the terminal for supporting URLLC by certain proportioning, less running time-frequency resource is distributed to branch
The terminal of eMBB is held, the terminal due to supporting URLLC is thus reduced and supports the terminal selection same running time-frequency resource hair of eMBB
It send and conflicts caused by preamble, meet the delay requirement of URLLC terminals.It should be noted that for supporting URLLC simultaneously
With the terminal of eMBB, handled according to the terminal distribution running time-frequency resource for support URLLC.For example, if base station/cell is to initial
Access sends the time-frequency resource allocating of preamble A, and whole distribution method is to be wanted to the running time-frequency resource of URLLC terminal distributions
It is more than the running time-frequency resource of eMBB terminal distribution, if distribution ratio is 5:2, i.e., it is (5/7) to the running time-frequency resource of URLLC terminal distributions
A, the running time-frequency resource to eMBB terminal distributions are (2/7) A.
Fig. 5 shows the flow of the distribution method of the initial access resource for base station of an alternative embodiment of the invention
Schematic diagram.Wherein, this method includes：
Step 502, the type of service supported according to terminal, before being used to send random access in the information of system information block
The running time-frequency resource of leading code is allocated；
Step 504, the leading format of the random access lead code sent according to terminal, in the information of system information block
Running time-frequency resource is allocated, wherein the running time-frequency resource that is distributed of random access lead code for different leading formats is different；
Step 506, the information of system information block is sent to terminal.
In this embodiment, while the different service types supported according to terminal distribute different running time-frequency resources, base
It stands in the information of SIB, it is corresponding to distribute different time-frequency money also according to the difference of the leading format of the preamble of terminal transmission
Source.Since the preamble of different leading formats contains the CP of different length, and the longer tolerance to delay of CP length is bigger,
So by according to different leading formats, different running time-frequency resources should be distributed for terminal-pair, further ensures that the time delay of terminal needs
It asks, improves networking efficiency.
Preferably, the type of service that terminal is supported includes URLLC, eMBB；Step 502, the service class supported according to terminal
Type is specifically included to being allocated in the information of system information block for sending the running time-frequency resource of random access lead code：It is being
In the information for block of information of uniting, respectively only supports URLLC or support the terminal of URLLC and eMBB simultaneously, only support the end of eMBB
Different running time-frequency resources is distributed at end；Wherein, it is only to support highly reliable low delay or support the terminal distribution of URLLC and eMBB simultaneously
Running time-frequency resource quantity be more than for only support eMBB terminal distribution running time-frequency resource quantity.
The embodiment of fourth aspect present invention proposes a kind of distributor being initially accessed resource, is used for base station, and Fig. 6 shows
The schematic block diagram of the distributor 60 of the initial access resource for base station of one embodiment of the present of invention is gone out.Wherein, should
Device 60 includes：
Distribution module 602, for the type of service supported according to terminal, in the information of system information block for transmission with
The running time-frequency resource of machine access lead code is allocated；Sending module 604, the information for sending system information block to terminal.
The distributor 60 provided by the invention for being initially accessed resource, base station is in the SIB information of broadcast, according to terminal branch
The different service types held, for making differentiation for sending the running time-frequency resource of preamble, to reduce terminal when utilizing
Frequency resource sends the possibility clashed when preamble, improves the efficiency that terminal networks.
Preferably, the type of service that terminal is supported includes URLLC, eMBB；Distribution module 602 is specifically used for believing in system
In the information for ceasing block, respectively only supports URLLC or support the terminal of URLLC and eMBB simultaneously, only support the terminal point of eMBB
With different running time-frequency resources；Wherein, be only support highly reliable low delay or support simultaneously URLLC and eMBB terminal distribution when
The quantity of frequency resource is more than the quantity of the running time-frequency resource of the terminal distribution only to support eMBB.
In this embodiment, the terminal for respectively supporting URLLC, the running time-frequency resource for supporting the terminal distribution of eMBB different.
Specifically, distributing more running time-frequency resource to the terminal for supporting URLLC by certain proportioning, less running time-frequency resource is distributed to branch
The terminal of eMBB is held, the terminal due to supporting URLLC is thus reduced and supports the terminal selection same running time-frequency resource hair of eMBB
It send and conflicts caused by preamble, meet the delay requirement of URLLC terminals.It should be noted that for supporting URLLC simultaneously
With the terminal of eMBB, handled according to the terminal distribution running time-frequency resource for support URLLC.For example, if base station/cell is to initial
Access sends the time-frequency resource allocating of preamble A, and whole distribution method is to be wanted to the running time-frequency resource of URLLC terminal distributions
It is more than the running time-frequency resource of eMBB terminal distribution, if distribution ratio is 5:2, i.e., it is (5/7) to the running time-frequency resource of URLLC terminal distributions
A, the running time-frequency resource to eMBB terminal distributions are (2/7) A.
Preferably, distribution module 602 are additionally operable to the leading format of the random access lead code sent according to terminal, to being
Running time-frequency resource in the information for block of information of uniting is allocated, wherein the random access lead code for different leading formats is distributed
Running time-frequency resource is different.
In this embodiment, while the different service types supported according to terminal distribute different running time-frequency resources, base
It stands in the information of SIB, it is corresponding to distribute different time-frequency money also according to the difference of the leading format of the preamble of terminal transmission
Source.Since the preamble of different leading formats contains the CP of different length, and the longer tolerance to delay of CP length is bigger,
So by according to different leading formats, different running time-frequency resources should be distributed for terminal-pair, further ensures that the time delay of terminal needs
It asks, improves networking efficiency.
The embodiment of fifth aspect present invention, it is proposed that a kind of communication equipment includes the initial access money of any of the above-described
The distributor in source.
Communication equipment provided by the invention includes the distributor of the initial access resource of any of the above-described, can realize
Whole advantageous effects of the distributor of the initial access resource of any of the above-described technical solution.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the present invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (15)
1. a kind of distribution method being initially accessed resource, which is characterized in that it is used for terminal, the method includes：
Receive the information of system information block；
In the information of the system information block, the distribution information of the running time-frequency resource for sending random access lead code is obtained,
And select the running time-frequency resource according to the distribution information；
The random access lead code is sent on the running time-frequency resource.
2. the distribution method according to claim 1 for being initially accessed resource, which is characterized in that described in the running time-frequency resource
It the step of upper transmission random access lead code, specifically includes：
On the running time-frequency resource, send preset leading format the random access lead code, it is described preset leading format with
The type of service that the terminal is supported is corresponding；
Wherein, the type of service that the terminal is supported includes highly reliable low delay, enhanced mobile broadband.
3. the distribution method according to claim 2 for being initially accessed resource, which is characterized in that indicated in the distribution information
Only to support the highly reliable low delay or supporting the terminal of the highly reliable low delay and the enhanced mobile broadband simultaneously
Distribution the running time-frequency resource, and for only support the enhanced mobile broadband terminal distribution the running time-frequency resource；
Wherein, it is only to support the highly reliable low delay or support the highly reliable low delay and the enhanced movement wide simultaneously
The quantity of the running time-frequency resource of the terminal distribution of band is more than the institute of the terminal distribution only to support the enhanced mobile broadband
State the quantity of running time-frequency resource.
4. the distribution method according to claim 2 or 3 for being initially accessed resource, which is characterized in that
The distribution information includes distributing to the information for the random access lead code that the terminal sends different leading formats,
The running time-frequency resource that the random access lead code of the wherein described leading format of difference is distributed is different.
5. a kind of distributor being initially accessed resource, which is characterized in that be used for terminal, described device includes：
Receiving module, the information for receiving system information block；
Distribution module, in the information of the system information block, obtaining the time-frequency money for sending random access lead code
The distribution information in source, and select the running time-frequency resource according to the distribution information；
Sending module, for sending the random access lead code on the running time-frequency resource.
6. the distributor according to claim 5 for being initially accessed resource, which is characterized in that the sending module, specifically
For in the running time-frequency resource, sending the random access lead code for presetting leading format, it is described preset leading format with
The type of service that the terminal is supported is corresponding；
Wherein, the type of service that the terminal is supported includes highly reliable low delay, enhanced mobile broadband.
7. the distributor according to claim 6 for being initially accessed resource, which is characterized in that indicated in the distribution information
Only to support the highly reliable low delay or supporting the terminal of the highly reliable low delay and the enhanced mobile broadband simultaneously
Distribution the running time-frequency resource, and for only support the enhanced mobile broadband terminal distribution the running time-frequency resource；
Wherein, it is only to support the highly reliable low delay or support the highly reliable low delay and the enhanced movement wide simultaneously
The quantity of the running time-frequency resource of the terminal distribution of band is more than the institute of the terminal distribution only to support the enhanced mobile broadband
State the quantity of running time-frequency resource.
8. the distributor of the initial access resource described according to claim 6 or 7, which is characterized in that
The distribution information includes distributing to the information for the random access lead code that the terminal sends different leading formats,
The running time-frequency resource that the random access lead code of the wherein described leading format of difference is distributed is different.
9. a kind of distribution method being initially accessed resource, which is characterized in that it is used for base station, the method includes：
According to the type of service that terminal is supported, to being provided in the information of system information block for sending the time-frequency of random access lead code
Source is allocated；
The information of the system information block is sent to the terminal.
10. the distribution method according to claim 9 for being initially accessed resource, which is characterized in that the industry that the terminal is supported
Service type includes highly reliable low delay, enhanced mobile broadband；
It is described according to terminal support type of service, in the information of system information block for send random access lead code when
Frequency resource is allocated, and is specifically included：
In the information of the system information block, respectively only supports the highly reliable low delay or support simultaneously described highly reliable
The terminal of low delay and the enhanced mobile broadband only supports different described of the terminal distribution of the enhanced mobile broadband
Running time-frequency resource；
Wherein, it is only to support the highly reliable low delay or support the highly reliable low delay and the enhanced movement wide simultaneously
The quantity of the running time-frequency resource of the terminal distribution of band is more than the institute of the terminal distribution only to support the enhanced mobile broadband
State the quantity of running time-frequency resource.
11. the distribution method according to claim 9 or 10 for being initially accessed resource, which is characterized in that described to described
Before terminal sends the step of information of the system information block, further include：
According to the leading format for the random access lead code that the terminal is sent, in the information of the system information block
The running time-frequency resource is allocated, wherein for the different leading formats the random access lead code distributed it is described when
Frequency resource is different.
12. a kind of distributor being initially accessed resource, which is characterized in that be used for base station, described device includes：
Distribution module, the type of service for being supported according to terminal, to being used to send random access in the information of system information block
The running time-frequency resource of lead code is allocated；
Sending module, the information for sending the system information block to the terminal.
13. the distributor according to claim 12 for being initially accessed resource, which is characterized in that the industry that the terminal is supported
Service type includes highly reliable low delay, enhanced mobile broadband；
The distribution module is specifically used in the information of the system information block, respectively only supports described highly reliable low prolong
When or support simultaneously the terminal of the highly reliable low delay and the enhanced mobile broadband, only support it is described enhanced mobile wide
The different running time-frequency resource of the terminal distribution of band；
Wherein, it is only to support the highly reliable low delay or support the highly reliable low delay and the enhanced movement wide simultaneously
The quantity of the running time-frequency resource of the terminal distribution of band is more than the institute of the terminal distribution only to support the enhanced mobile broadband
State the quantity of running time-frequency resource.
14. being initially accessed the distributor of resource according to claim 12 or 13, which is characterized in that
The distribution module is additionally operable to the leading format of the random access lead code sent according to the terminal, to described
The running time-frequency resource in the information of system information block is allocated, wherein for the random access of the different leading formats
The running time-frequency resource that lead code is distributed is different.
15. a kind of communication equipment, which is characterized in that including：
The distributor of initial access resource as described in any one of claim 5 to 8；Or
The distributor of initial access resource as described in any one of claim 12 to 14.
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| CN114158132A (en) * | 2020-09-08 | 2022-03-08 | 中国移动通信有限公司研究院 | Random access method, terminal and storage medium |
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