CN109152042A - Configuration, recognition methods and the base station of lead code, terminal, readable storage medium storing program for executing - Google Patents
Configuration, recognition methods and the base station of lead code, terminal, readable storage medium storing program for executing Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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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
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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Abstract
A kind of configuration of lead code, recognition methods and base station, terminal, readable storage medium storing program for executing.The configuration method includes: for terminal configuring preamble code configuration information, wherein, the lead code configuration information includes: the number of the corresponding subset of available first preamble sequence, the quantity information of available first lead code described in the identification information of the corresponding subset of each wave beam and each subset；First lead code is competition lead code or non-competing lead code；The lead code configuration information is sent to the terminal.Using upper scheme, UE can be enabled to identify available preamble sequence range.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of configurations of lead code, recognition methods and base station, terminal, readable
Storage medium.
Background technique
In 5G, the serving cell of user terminal (User Equipment, UE) can support multi-beam (beam) to operate,
Each wave beam can access UE.UE can be by the signal quality for the synchronization signal block (SS block) that reception base station is sent, really
Surely the wave beam to be accessed, so can be carried out based on the random access configuration information indicated in corresponding system message, selection with
Physical Random Access Channel (Physical Random Access Channel, the PRACH) resource and lead code of machine access
(preamble) sequence, and selected preamble sequence is sent in selected PRACH resource.Base station is based on used in UE
PRACH resource and the preamble sequence received can determine the wave beam that UE is accessed, and then transmit data to UE.
In practical applications, it when UE selection will carry out the preamble sequence of random access, needs first to match based on random access
Confidence breath identifies available preamble sequence.Since the service of UE in long term evolution (Long Term Evolution, LTE) is small
Area is simple beam operation, therefore can not indicate that UE can in 5G using the information content identical with random access configuration information in LTE
Preamble sequence range, but how base station indicates available preamble sequence range in 5G, not yet solves at present.
Summary of the invention
Present invention solves the technical problem that it is how base station to UE indicates available preamble sequence range in 5G, so that
UE can identify available preamble sequence.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of configuration method of lead code, which comprises
For terminal configuring preamble code configuration information, wherein the lead code configuration information includes: that available first preamble sequence is corresponding
Subset number, available first described in the identification information of the corresponding subset of each wave beam and each subset
The quantity information of lead code；First lead code is competition lead code or non-competing lead code；The lead code is matched into confidence
Breath is sent to the terminal.
Optionally, first lead code is competition lead code, the preamble sequence of each subset be it is described can
Competition preamble sequence.
Optionally, the preamble sequence of each subset includes: the available competition preamble sequence and described
Available non-competing preamble sequence.
Optionally, the lead code configuration information further include: the quantity of all available lead codes in each subset
Information.
The embodiment of the invention also provides a kind of recognition methods of lead code, which comprises when receiving lead code
When configuration information, it is based on the lead code configuration information, using preset lead code identification method, identification terminal is predetermined
Access the corresponding preamble sequence range of wave beam；The lead code configuration information includes: that available first preamble sequence is corresponding
Subset number, available first described in the identification information of the corresponding subset of each wave beam and each subset
The quantity information of lead code；First lead code is competition lead code or non-competing lead code.
Optionally, first lead code is competition lead code, the preamble sequence of each subset be it is described can
Competition preamble sequence.
Optionally, described to use preset lead code identification method, the predetermined access wave beam of identification terminal is corresponding
Preamble sequence range, comprising: based on the quantity information and the subset for competing preamble sequence in each subset
Number determines the starting index and end index of the corresponding subset of access wave beam of the terminal.
Optionally, the method also includes: in number and each subset based on the subset compete lead code sequence
The quantity information of column, determines the quantity of the available non-competing preamble sequence, and from the available lead code sequence of the terminal
Column range end inverted order identifies the available non-competing preamble sequence range.
Optionally, the preamble sequence of each subset includes: the available competition preamble sequence and described
Available non-competing preamble sequence.
Optionally, first lead code is competition lead code；Described to use preset lead code identification method, identification is eventually
Hold the corresponding preamble sequence range of predetermined access wave beam, comprising: based on competition lead code sequence in each subset
The number of the quantity information of column and the subset determines starting index and the end of the corresponding subset of access wave beam of the terminal
Pygochord draws；The starting index of the corresponding subset of access wave beam based on the terminal and end index and the terminal connect
The quantity information for entering to compete preamble sequence in the corresponding subset of wave beam, determines in the corresponding subset of access wave beam of the terminal
The quantity information of non-competing preamble sequence, and the end inverted order identification of the corresponding subset of access wave beam from the terminal is non-competing
The sequence context for striving lead code, determine non-competing lead code in the corresponding subset of access wave beam of the terminal starting index and
End index；The starting index for accessing the corresponding subset of wave beam and end index and the terminal based on the terminal
The starting index of non-competing lead code and end index in the corresponding subset of wave beam are accessed, determines the access wave beam pair of the terminal
The starting index and end index of lead code are competed in the subset answered.
Optionally, the lead code configuration information further include: the quantity of all available lead codes in each subset
Information.
Optionally, first lead code is competition lead code；Described to use preset lead code identification method, identification is eventually
Hold the corresponding preamble sequence range of predetermined access wave beam, comprising: based in each subset it is all it is available before
The number of the quantity information of leading code and the corresponding subset of available competition preamble sequence, determines the access wave beam of the terminal
The starting index of corresponding subset and end index；The starting index of the corresponding subset of access wave beam based on the terminal and end
Pygochord draws, the quantity information of available competition preamble sequence in the corresponding subset of access wave beam of the terminal, described in determination
The quantity information of available non-competing lead code in the corresponding subset of access wave beam of terminal, and from the access wave beam of the terminal
The end inverted order of corresponding subset identifies the sequence context of available non-competing lead code, determines the access wave beam pair of the terminal
The starting index of non-competing lead code and end index in the subset answered；The corresponding subset of access wave beam based on the terminal
The starting index of non-competing lead code in the corresponding subset of the access wave beam of starting index and end index and the terminal
And end index, determine the starting index and end rope of the middle competition lead code of the corresponding subset of access wave beam of the terminal
Draw.
Optionally, in each subset available first lead code quantity information are as follows: can be used in each subset
The first lead code total number information or each subset in it is available competition lead code and non-competing lead code ratio
Information.
The embodiment of the invention also provides a kind of base station, the base station includes: configuration unit, is suitable for terminal configuring preamble
Code configuration information, wherein the lead code configuration information includes: the number of the corresponding subset of available first preamble sequence,
The quantity of available first lead code described in the identification information of the corresponding subset of each wave beam and each subset
Information；First lead code is competition lead code or non-competing lead code；Transmission unit is suitable for the lead code matching confidence
Breath is sent to the terminal.
Optionally, first lead code is competition lead code, the preamble sequence of each subset be it is described can
Competition preamble sequence.
Optionally, the preamble sequence of each subset includes: the available competition preamble sequence and described
Available non-competing preamble sequence.
Optionally, the lead code configuration information further include: the quantity of all available lead codes in each subset
Information.
The embodiment of the invention also provides a kind of terminal, the terminal includes: receiving unit, is matched suitable for receiving lead code
Confidence breath；The lead code configuration information includes: the number of the corresponding subset of available first preamble sequence, each wave beam pair
The quantity information of available first lead code described in the identification information for the subset answered and each subset；Described
One lead code is competition lead code or non-competing lead code；First recognition unit, suitable for when receiving lead code configuration information,
Based on the lead code configuration information, using preset lead code identification method, the predetermined access wave beam pair of identification terminal
The preamble sequence range answered.
Optionally, first lead code is competition lead code, the preamble sequence of each subset be it is described can
Competition preamble sequence.
Optionally, first recognition unit, suitable in each subset compete preamble sequence quantity information with
And the number of the subset, determine the starting index and end index of the corresponding subset of access wave beam of the terminal.
Optionally, the terminal further include: the second recognition unit, suitable for based on the subset number and each son
The quantity information for concentrating competition preamble sequence, determines the quantity of the available non-competing preamble sequence, and from the end
Available preamble sequence range end inverted order is held to identify the available non-competing preamble sequence range.
Optionally, the preamble sequence of each subset includes: the available competition preamble sequence and described
Available non-competing preamble sequence.
Optionally, first lead code is competition lead code；First recognition unit is suitable for being based on each son
The quantity information of competition preamble sequence and the number of the subset are concentrated, determines the corresponding son of access wave beam of the terminal
The starting index of collection and end index；The starting index and end index of the corresponding subset of access wave beam based on the terminal,
And the quantity information of preamble sequence is competed in the corresponding subset of access wave beam of the terminal, determine the access of the terminal
The quantity information of non-competing preamble sequence in the corresponding subset of wave beam, and from the corresponding subset of access wave beam of the terminal
End inverted order identifies the sequence context of non-competing lead code, determine it is non-competing in the corresponding subset of access wave beam of the terminal before
The starting index of leading code and end index；The starting index and end rope of the corresponding subset of access wave beam based on the terminal
Draw and access the starting index of non-competing lead code and the end in the corresponding subset of wave beam of the terminal index, determines institute
State the starting index and end index that lead code is competed in the corresponding subset of access wave beam of terminal.
Optionally, the lead code configuration information further include: the quantity of all available lead codes in each subset
Information.
Optionally, first lead code is competition lead code；First recognition unit is suitable for being based on each son
The quantity information of all available lead codes and the number of the corresponding subset of available competition preamble sequence are concentrated, determines institute
State the starting index and end index of the corresponding subset of access wave beam of terminal；The corresponding son of access wave beam based on the terminal
The starting index of collection and end index, the number for accessing available competition preamble sequence in the corresponding subset of wave beam of the terminal
Information is measured, determines the quantity information of available non-competing lead code in the corresponding subset of access wave beam of the terminal, and from institute
The end inverted order for stating the corresponding subset of access wave beam of terminal identifies the sequence context of available non-competing lead code, determine described in
The starting index and end index of non-competing lead code in the corresponding subset of access wave beam of terminal；Access based on the terminal
It is non-competing in the starting index and end index of the corresponding subset of wave beam and the corresponding subset of access wave beam of the terminal
The starting index of lead code and end index determine rising for the middle competition lead code of the corresponding subset of access wave beam of the terminal
Begin index and end index.
Optionally, in each subset available first lead code quantity information are as follows: can be used in each subset
The first lead code total number information or each subset in it is available competition lead code and non-competing lead code ratio
Information.
The embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer instruction, described
The step of computer instruction executes the configuration method of any of the above-described kind of lead code when running.
The embodiment of the invention also provides another computer readable storage mediums, are stored thereon with computer instruction,
It is characterized in that, the step of executing the recognition methods of any of the above-described kind of lead code when computer instruction is run.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that
Using the above scheme, since lead code configuration information includes: the corresponding subset of available first preamble sequence
Number, available first lead code described in the identification information of the corresponding subset of each wave beam and each subset
Quantity information, and then available first preamble sequence within the scope of preamble sequence can be determined based on the lead code configuration information
Quantity, and the quantity of total and available first preamble sequence based on preamble sequence determines preamble sequence model
The quantity for enclosing the interior available preamble sequence of another kind is based ultimately upon the identification information of the corresponding subset of each wave beam, knows
Not Chu lead code corresponding to the terminal wave beam to be accessed sequence context.
Detailed description of the invention
Fig. 1 is the configuration schematic diagram of lead code in LTE system；
Fig. 2 is a kind of flow chart of lead code configuration method in the embodiment of the present invention；
Fig. 3 is a kind of flow chart of lead code recognition methods in the embodiment of the present invention；
Fig. 4 is a kind of configuration schematic diagram of lead code in the embodiment of the present invention；
Fig. 5 is the configuration schematic diagram of another lead code in the embodiment of the present invention；
Fig. 6 is the configuration schematic diagram of another lead code in the embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram of base station in the embodiment of the present invention；
Fig. 8 is a kind of structural schematic diagram of terminal in the embodiment of the present invention.
Specific embodiment
In the random access procedure of LTE system, UE achieves down-going synchronous after completing cell searching, it is possible thereby to
Carry out the transmission of downlink data.Later, UE is also needed after establishing uplink synchronous by random access procedure and cell, just can be carried out
The transmission of upstream data.Wherein, the first step of random access procedure is exactly that UE will send lead code to base station by PRACH.
In LTE, each cell has 64 available preamble sequences, can be used for competing random access and non-competing random
Access.UE can select one of them (or being specified by base station) to transmit on prach.
Referring to Fig.1, in LTE, base station can indicate available preamble sequence to UE by random access configuration information
Range.Wherein, N1 indicates preamble sequence range (the referred to as available competition lead code sequence of the available competition random access of cell
Column range), N2 indicates preamble sequence range (the referred to as available non-competing lead code of the available non-competing random access of cell
Sequence context).Wherein, N2=(64-N1).
Since in LTE, the serving cell of UE is simple beam operation, therefore can not be used and random access configuration information in LTE
The identical information content indicates the available preamble sequence range of UE in 5G, but in 5G base station how to indicate it is available before
Code-guiding sequence range, not yet solves at present.
In view of the above-mentioned problems, the embodiment of the invention provides a kind of lead code configuration method, due to lead code configuration information
Include: the number of the corresponding subset of available first preamble sequence, the identification information of the corresponding subset of each wave beam with
And the quantity information of available first lead code described in each subset, and then can be true based on the lead code configuration information
Determine the quantity of available first preamble sequence within the scope of preamble sequence, and total and available based on preamble sequence
The quantity of first preamble sequence determines the quantity of another available preamble sequence within the scope of preamble sequence, final base
In the identification information of the corresponding subset of each wave beam, the sequence of lead code corresponding to wave beam that terminal to be accessed is identified
Range.
It is understandable to enable above-mentioned purpose of the invention, feature and beneficial effect to become apparent, with reference to the accompanying drawing to this
The specific embodiment of invention is described in detail.
Fig. 2 is the embodiment of the invention provides a kind of configuration method of lead code, and the method can specifically include as follows
Step:
It step 21, is terminal configuring preamble code configuration information.
Wherein, the lead code configuration information includes: the number of the corresponding subset of available first preamble sequence, each
The quantity information of available first lead code described in the identification information of the corresponding subset of wave beam and each subset；
First lead code is competition lead code or non-competing lead code.
In specific implementation, before terminal sends preamble sequence to base station, base station can first be the terminal configuring preamble code
Configuration information, so terminal can from base station configure lead code configuration information in identify corresponding to the wave beam to be accessed before
Code-guiding sequence range, and therefrom a preamble sequence is selected to be sent to base station, to continue subsequent random access procedure.
In an embodiment of the present invention, first lead code can be available competition lead code, or available
Non-competing lead code.In order to it is more convenient, be explicitly described, be described collectively using the first lead code.It is understood that
It is that in specific implementation, those skilled in the art can will be before the first lead code replaces with available competition in following embodiment
Leading code also could alternatively be available non-competing lead code.
In an embodiment of the present invention, available first preamble sequence of cell can be divided into multiple subsets, specifically
How each subset is set with no restriction.
In one embodiment of this invention, first lead code is to compete lead code, available leading in each subset
Code sequence is the available competition preamble sequence, that is, only includes available competition lead code sequence in each subset
Column.
In the above-described embodiments, terminal can determine starting index and the end of each subset according to lead code configuration information
Index, and can determine available non-competing preamble sequence range within the scope of the available preamble sequence of terminal.It is described non-competing
It is shared for all wave beams to strive preamble sequence range.Wherein, in each subset available first preamble sequence quantity
It may be the same or different, specifically with no restriction.
For example, base station can indicate the corresponding subset of the available competition preamble sequence in lead code configuration information
Totally 4, the quantity of available competition preamble sequence is 16 in each subset.Since cell can use the total of preamble sequence
Number N is usually fixed, and therefore, cell can use available competition lead code sequence in the total N of preamble sequence and all subsets
The difference of the sum (16*4) of column, i.e. N-16*4 are that cell can use the quantity of non-competing lead code.
In another embodiment of the present invention, in each subset can also simultaneously comprising available competition preamble sequence and
Available non-competing preamble sequence.
In each subset in the identical situation of the quantity of preamble sequence, can not have to indicate it is all in each subset can
The quantity of preamble sequence.Terminal can use the total N of preamble sequence and described available first leading based on cell
The quantity information of available first lead code described in the number and each subset of the corresponding subset of code sequence, you can learn that
The quantity of non-competing preamble sequence in each subset.
For example, the sum of the available preamble sequence of cell is 128, when the corresponding son of available competition preamble sequence
Collection is 4, respectively subset 1 to subset 4, wherein the quantity of available competition preamble sequence is 5 in subset 1, subset 2
The quantity of interior available competition preamble sequence is 4, and the quantity of available competition preamble sequence is 4 in subset 3, subset
The quantity of available competition preamble sequence is 5 in 4, then the quantity of available non-competing preamble sequence is in subset 1
128/4-5=27, the quantity of available non-competing preamble sequence 128/4-4=28, available in subset 3 in subset 2
The quantity of non-competing preamble sequence 128/4-4=28, the quantity 128/4- of available non-competing preamble sequence in subset 4
5=27.
In the case that the quantity of preamble sequence is different in each subset, base station is removed and is indicated in lead code configuration information
Available first is leading described in the number and each subset of the corresponding subset of available first preamble sequence
Outside the quantity information of code, the quantity of all available preamble sequences in each subset should be also indicated.
By taking first lead code is competition lead code as an example, it is assumed that the sum of the available preamble sequence of cell is 128
It is a, it include following instruction information in the lead code configuration information: the available number for competing the corresponding subset of preamble sequence
Be 4, respectively subset 1 to subset 4, the quantity of available competition lead code described in subset 1 to subset 4 is respectively 32,16,
32 and 48, the quantity of available competition preamble sequence is 5 in subset 1, available competition preamble sequence in subset 2
Quantity is 4, and the quantity of available competition preamble sequence is 4 in subset 3, available competition preamble sequence in subset 4
Quantity be 5.
Based on above-mentioned lead code configuration information, terminal can know the number of available non-competing preamble sequence in subset 1
Amount is 32-5=27, and the quantity of available non-competing preamble sequence is 16-4=12 in subset 2, available in subset 3
The quantity of non-competing preamble sequence is 32-4=28, and the quantity of available non-competing preamble sequence is 48-5 in subset 4
=43.
In specific implementation, whether the quantity of preamble sequence is identical in each subset, can be made an appointment by agreement,
It can also be indicated in the lead code configuration information, how specific terminal knows that the data of lead code in each subset are
It is no identical, with no restriction.
It is understood that in specific implementation, when each subset includes simultaneously available competition preamble sequence and can
When non-competing preamble sequence, base station can also indicate the available competition lead code sequence in lead code configuration information
Arrange the quantity information of available non-competing lead code described in the number and each subset of corresponding subset.Terminal can
To determine the quantity of available competition lead code in each subset based on above- mentioned information, no longer illustrate herein.
Step 22, the lead code configuration information is sent to the terminal.
In specific implementation, the lead code configuration information can be sent to the terminal using various ways by base station,
Specifically with no restriction.For example, the lead code configuration information can be sent to the terminal by system message by base station,
The lead code configuration information can be sent to the terminal by dedicated signaling.
Due in LTE, the serving cell of UE is simple beam operation, thus can not UE can not using with it is identical leading in LTE
Code recognition methods identifies the preamble sequence range in lead code configuration information, but in 5G how UE identifies that lead code is matched
Preamble sequence range in confidence breath, not yet solves at present.
In view of the above-mentioned problems, receiving above-described embodiment the embodiment of the invention provides a kind of lead code recognition methods
In lead code configuration information when, available preamble sequence range can be identified using preset identification method.
Specifically, referring to Fig. 3, the lead code recognition methods be may include steps of:
Step 31, judge whether to receive lead code configuration information.
Wherein, the lead code configuration information includes: the number of the corresponding subset of available first preamble sequence, each
The quantity information of available first lead code described in the identification information of the corresponding subset of wave beam and each subset；
First lead code is competition lead code or non-competing lead code.
In one embodiment of this invention, first lead code be it is non-strive lead code, in each subset can with it is leading
Code sequence is the available competition preamble sequence, that is, only includes available competition lead code sequence in each subset
Column.
In another embodiment of the present invention, before the preamble sequence of each subset includes: the available competition
Code-guiding sequence and the available non-competing preamble sequence.
In each subset in the identical situation of the quantity of preamble sequence, base station can not have in lead code configuration information
The quantity of all available preamble sequences in the middle each subset of instruction.Terminal is based on available first preamble sequence pair
The quantity information of available first lead code described in the number for the subset answered and each subset, that is, can determine available
Preamble sequence within the scope of, it is available competition lead code and non-competing lead code distribution situation.
In the case that the quantity of preamble sequence is not exactly the same in each subset, base station is removed in lead code configuration information
Available the described in the number and each subset of the corresponding subset of middle instruction available first preamble sequence
Outside the quantity information of one lead code, the quantity of all available preamble sequences in each subset should be also indicated.Terminal base
It can be determined within the scope of available preamble sequence in above- mentioned information, the distribution of available competition lead code and non-competing lead code
Situation.
About the lead code configuration information, specifically it is referred to above-mentioned match about showing lead code in embodiment in Fig. 2
The description of confidence breath is implemented.Details are not described herein again.
Step 32, when receiving lead code configuration information, it is based on the lead code configuration information, using preset leading
Code identification method, the corresponding preamble sequence range of the predetermined access wave beam of identification terminal.
In one embodiment of this invention, when first lead code is compete lead code and each subset leading
When code sequence is the available competition preamble sequence, base station can divide available non-competing leading according to cell level
The available competition preamble sequence of cell is divided into multiple subsets, in the available preamble sequence of cell by code sequence
In addition to available competition preamble sequence, remaining is the range of the available non-competing preamble sequence.
Number of the terminal based on the quantity information and the subset for competing preamble sequence in each subset, determines
The starting index and end index of the corresponding subset of access wave beam of the terminal.
In specific implementation, based on the quantity information and the subset for competing preamble sequence in each subset
Number can determine the starting index and end index of the corresponding subset of access wave beam of terminal using a variety of methods.
For example, referring to Fig. 4, by taking the sum of the available preamble sequence is N number of as an example, available competition lead code sequence
Arranging corresponding subset number is x, and the quantity of available competition preamble sequence into subset x of subset 1 is respectively N1~Nx.
Assuming that the corresponding subset of access wave beam of terminal is subset 2, then terminal can be based on preamble sequence in subset 1
Quantity N1 is determined that the starting index of preamble sequence in subset 2 is N1, is determined based on the quantity of the preamble sequence in subset 1
The end index of preamble sequence is N1+y-1 in subset 2, and obtaining preamble sequence range in subset 2 is [N1, N1+y-1].When
When N1=N2=...=Nx=y, preamble sequence range is [y, 2y-1] in subset 2.
In specific implementation, when needing to carry out non-competing random access, terminal should also be from available preamble sequence model
The sequence context of non-competing lead code is identified in enclosing.
Specifically, terminal can compete the quantity of preamble sequence in number and each subset based on the subset
Information determines the quantity of the available non-competing preamble sequence, and last from the available preamble sequence range of the terminal
Tail inverted order identifies the available non-competing preamble sequence range.
For example, referring to Fig. 4, terminal can first based on subset 1 into subset x available competition preamble sequence quantity,
The sum (N1+N2+ ...+Nx) of available competition preamble sequence is obtained, and then based on available competition preamble sequence
The total N of total and all available preamble sequences determines quantity=N- of all available non-competing preamble sequences
(N1+N2+ ...+Nx), and from cell available non-competing preamble sequence can be identified with preamble sequence range end inverted order,
The range for obtaining the available non-competing preamble sequence is [(N1+N2+ ...+Nx), N-1].Work as N1=N2=...=
When Nx=y, preamble sequence range is [x*y, N-1] in subset 2.
In another embodiment of the invention, when first lead code is non-competing lead code and each subset
When preamble sequence is the available non-competing preamble sequence, terminal is based on non-competing lead code in each subset
The quantity information of sequence, it is successively continuous true since first preamble sequence within the scope of the available preamble sequence of the terminal
The starting index of fixed each subset and end index, non-competing lead code in number and each subset based on the subset
The quantity information of sequence determines the quantity of the available competition preamble sequence, and from the available lead code sequence of the terminal
Column range end inverted order identifies the available competition preamble sequence range.Specifically be referred to above-mentioned be in the first lead code
When the preamble sequence of non-competing lead code and each subset is available non-competing preamble sequence, terminal recognition lead code
Method implemented, details are not described herein again.
In another embodiment of the invention, when the preamble sequence of each subset includes simultaneously described available competing
When striving preamble sequence and the available non-competing preamble sequence, base station can be divided according to sub-set level described in can use
The first preamble sequence, i.e., available first preamble sequence of cell is divided into multiple subsets, can be same in each subset
When include available competition preamble sequence and the available non-competing preamble sequence.
By taking first lead code is competition lead code as an example, the quantity of preamble sequence is all the same in each subset
In the case of, based in each subset compete preamble sequence quantity information and the subset number, determine described in
The starting index and end index of the corresponding subset of access wave beam of terminal.
In specific implementation, based on the quantity information and the subset for competing preamble sequence in each subset
Number can determine the starting index and end index of the corresponding subset of access wave beam of the terminal using a variety of methods, into
And the starting index and end index of the corresponding subset of access wave beam based on the terminal, the access wave beam of the terminal are corresponding
Subset in it is available competition preamble sequence quantity information, determining can use in the corresponding subset of access wave beam of the terminal
Non-competing lead code quantity information, and the end inverted order identification of the corresponding subset of access wave beam from the terminal is available
The sequence context of non-competing lead code determines the starting rope of non-competing lead code in the corresponding subset of access wave beam of the terminal
Draw and end index, is based ultimately upon the starting index and end index and described of the corresponding subset of access wave beam of the terminal
The starting index and end index of non-competing lead code, determine connecing for the terminal in the corresponding subset of access wave beam of terminal
Enter the starting index and end index of the middle competition lead code of the corresponding subset of wave beam
For example, referring to Fig. 5, when the sum of the available preamble sequence is N number of, and available competition preamble sequence
When corresponding subset number is x, the quantity of available preamble sequence into subset x of subset 1 is N/x.If terminal connects
Entering the corresponding subset of wave beam is subset x, then it is (x-1) that terminal, which can be calculated the 1st to x-1 son and concentrate the sum of lead code,
N/x, and then determine that the starting index of x-th of subset is (x-1) N/x, end index is N-1, and corresponding range is [(x-1) N/
X, N-1].
When competition preamble sequence available in each subset is all the same and is y, the starting rope based on x-th of subset
The quantity y for drawing competition lead code in (x-1) N/x and x-th of subset can determine the sequence of competition lead code in xth subset
Range [(x-1) N/x, (x-1) N/x+y-1], i.e., [(x-1) N/x, N-N/x+y-1].
When competition preamble sequence available in x-th of subset is y, available non-competing lead code in x-th of subset
The quantity of sequence is N/x-y.It, can be with based on the sequence context [(x-1) N/x, N-N/x+y-1] for competing lead code in xth subset
The starting index for obtaining available non-competing lead code in x-th of subset is N-N/x+y, and end index is N-1, x-th of subset
The range of interior available non-competing lead code is [N-N/x+y, N-1].
It in other embodiments of the invention, can at least one described subset when the first lead code is competition lead code
The quantity of non-competing preamble sequence may be 0.That is, the corresponding son of the available competition preamble sequence
It concentrates, the preamble sequence at least one subset can be available competition preamble sequence.It is referred at this time above-mentioned
When in each subset simultaneously including available competition preamble sequence and non-competing preamble sequence, terminal recognition preamble sequence
Method identified that details are not described herein again.
In other embodiments of the invention, when the first lead code is non-competing lead code, at least one described subset
The quantity of available competition preamble sequence may be 0.That is, the available non-competing preamble sequence is corresponding
In subset, the preamble sequence at least one subset can be available non-competing preamble sequence.It is referred at this time
When in above-mentioned each subset simultaneously including available competition preamble sequence and non-competing preamble sequence, terminal recognition lead code
The method of sequence is identified that details are not described herein again.
In specific implementation, in the case that the quantity of preamble sequence is not exactly the same in each subset, terminal can be with
Quantity information and available competition preamble sequence first based on all available lead codes in each subset is corresponding
The number of subset determines the starting index and end index of the corresponding subset of access wave beam of the terminal, and then based on described
The starting index of the corresponding subset of access wave beam of terminal and end index, can in the corresponding subset of access wave beam of the terminal
Compete preamble sequence quantity information, determine in the corresponding subset of access wave beam of the terminal it is available it is non-competing before
The quantity information of leading code, and the end inverted order identification of the corresponding subset of access wave beam from the terminal is available non-competing leading
The sequence context of code determines the starting index and end rope of non-competing lead code in the corresponding subset of access wave beam of the terminal
Draw, is based ultimately upon the access of the starting index and end index and the terminal of the corresponding subset of access wave beam of the terminal
The starting index of non-competing lead code and end index in the corresponding subset of wave beam, determine that the access wave beam of the terminal is corresponding
Subset middle competition lead code starting index and end index.
For example, referring to Fig. 6, when the sum of the available preamble sequence is N number of, available competition preamble sequence pair
The subset number answered is x, and subset 1 is when into subset x, the quantity of available preamble sequence is respectively N1~Nx, if terminal connects
Enter the corresponding subset of wave beam be subset 2 when, then can be based on the starting that can determine subset 1 in subset 1 with the quantity N1 of lead code
Index is N1, based on the quantity N2 that can use lead code in subset 2, determines that the end index of subset 2 is N1+N2-1, thus obtains
The preamble sequence range of subset 2 is [N1, N1+N2-1].
When the quantity for competing preamble sequence in subset 2 is y, the preamble sequence range based on subset 2 is [N1, N1+
N2-1], the starting index that lead code is competed in available subset 2 is N1, and end index is N1+y-1, in subset 2 before competition
The sequence context of leading code be [N1, N1+y-1], and then based in subset 2 compete lead code sequence context and subset 2 before
Code-guiding sequence range determines that the starting index of non-competing lead code in subset 2 is N1+y, and end index is N1+N2-1, subset 2
The sequence context of interior non-competing lead code is [N1+y, N1+N2-1].
In specific implementation, in indicating each subset when the quantity information of available first lead code, base station can be straight
The total number information for indicating available first lead code in each subset in lead code configuration information is connect, can also indicate that every height
Concentrate the percent information of available competition lead code and non-competing lead code.Specifically how to indicate, with no restriction.
It is specific how to have by the way that non-competing lead code is divided into multiple subsets for terminal configuring preamble code and terminal
How body identifies available preamble sequence range, is referred to be divided into matching for multiple subsets above by will compete lead code
It sets method and recognition methods is implemented, no longer illustrate herein.
The lead code recognition methods in the embodiment of the present invention is described in detail below with reference to specific embodiment:
It is assumed that base station, which shares the corresponding wave beam of 8 synchronization signal block SS block, carrys out synchronous signal transmission, cell is available
Lead code sum is N=128, and the first lead code is competition lead code and the corresponding subset quantity of the available competition lead code of cell
It is 4.
In one embodiment, the available non-competing preamble sequence of cell divides (as shown in Figure 4) with cell level, often
A subset configures 16 available competition lead codes, then the starting of each subset indexes Preamble subset indexj=
(j-1) * 16, non-competing preamble sequence starting index is 16*4, the available preamble index range in specific each subset
It is as follows:
Preamble subset index1:[0,15]；
Preamble subset index2:[16,31]；
Preamble subset index3:[32,47]；
Preamble subset index4:[48,63]；
The available non-competing lead code range of cell is [64,127].
In another kind is implemented, the available non-competing preamble sequence of cell is divided with cell level, (as shown in Figure 4),
The available competition lead code of each subset configuration different number, wherein the leading number of codes of available competition in subset 1 is
12, the leading number of codes of available competition in subset 2 is 24, and the leading number of codes of available competition in subset 3 is 48, subset 4
The interior leading number of codes of available competition is 16.
The starting index of j-th of subset, numberOfRA-Preambles are indicated with Preamble subset indexjjTable
Show the quantity of available lead code in j-th of subset, then the starting index of j-th of subset is
End preamble sequence indexes Non-competing preamble sequence starting, which indexes, is End preamble sequence index be N-1, it is possible thereby to obtain in each subset can
Preamble index range is as follows:
Preamble subset index1:[0,11]；
Preamble subset index2:[12,35]；
Preamble subset index3:[36,83]；
Preamble subset index4:[84,99]；
The available non-competing lead code range of cell is [100,127].
In another embodiment, the available non-competing lead code of cell divides (as shown in Figure 5) with sub-set level, every height
Collection includes available competition lead code and non-competing lead code, and the sum of lead code is identical in each subset, i.e., each subset is flat
Divide the available lead code of cell, thus obtains in each subset to be N/4=128/4=32 with lead code sum.
In addition to this, base station configure in each subset the available leading number of codes of competition can it is identical can not also be identical.With
For difference, the leading number of codes of available competition in subset 1 is 12, and the available leading number of codes of competition is 24 in subset 2, son
The available leading number of codes of competition is 28 in collection 3, and the available leading number of codes of competition is 16 in subset 4.
The starting index of j-th of subset, numberOfRA-Preambles are indicated with Preamble subset indexjj
Indicate the quantity of available lead code in j-th of subset, then the starting index of j-th of subset is (j-1) * N/x, end lead code
Sequence index is (j-1) * N/x+numberOfRA-Preamblesj- 1, non-competing preamble sequence starting index is (j-1) *
N/x+numberOfRA-Preamblesj, preamble sequence index in end is j*N/x-1, it is possible thereby to obtain in each subset
Available preamble index range it is as follows:
Subset 1: competition preamble index range [0,11], non-competing preamble index range [12,31]；
Subset 2: competition preamble index range [32,55], non-competing preamble index range [56,63]；
Subset 3: competition preamble index range [64,91], non-competing preamble index range [92,95]；
Subset 4: competition preamble index range [96,111], non-competing preamble index range [112,127].
In another embodiment, the available non-competing lead code of cell divides (as shown in Figure 6) with sub-set level, every height
Concentrate comprising competition lead code and non-competing lead code, and in each subset lead code sum it is different.Match in lead code base station
It is 3:1 that the available leading number of codes and the ratio of non-competing leading number of codes of competing in each subset is configured in confidence breath, wherein
Available leading number of codes in subset 1 is 24, and the available leading number of codes in subset 2 is 24, before available in subset 3
Leading code quantity is 48, and the available leading number of codes in subset 4 is 32.
The starting index of j-th of subset, numberOfRA-Preambles are indicated with Preamble subset indexjj
Indicate the quantity of available lead code in j-th of subset, then the starting competition preamble index of j-th of subset isEnd competes preamble index
Further according to total leading number of codes, non-competing preamble index range can be extrapolated, can specifically be obtained in each subset
Available preamble index range is as follows:
Subset 1: competition preamble index range [0,17], non-competing preamble index range [18,23]；
Subset 2: competition preamble index range [24,41], non-competing preamble index range [42,47]；
Subset 3: competition preamble index range [48,83], non-competing preamble index range [84,95]；
Subset 4: competition preamble index range [96,119], non-competing preamble index range [120,127].
In specific implementation, no matter using the scheme in which kind of above-mentioned embodiment, terminal recognition accesses wave beam corresponding subset
After interior preamble sequence, when need to be at war with random access when, can be from the available competition preamble sequence identified
In range, an available competition preamble sequence is chosen, and be sent to base station.
It, can be from the available non-competing preamble sequence range identified when needing to carry out non-competing random access
It is interior, an available non-competing preamble sequence is chosen, and be sent to base station.Certainly, it is needing to carry out non-competing random access
When, base station can also use a certain lead code sequence by designated terminal out of available non-competing preamble sequence that identify
Column, to carry out subsequent random access procedure.
As shown in the above, the lead code recognition methods in the embodiment of the present invention is based on lead code configuration information, uses
Corresponding identification method identifies available preamble sequence range, can preferably meet the needs of random access procedure in 5G.
In order to enable those skilled in the art clearly realize the step of method describes in above-described embodiment, below it is right
The corresponding device of method is described in detail in above-described embodiment:
Referring to Fig. 7, the embodiment of the invention provides a kind of base station 70, the base station 70 may include: configuration unit 71 with
And transmission unit 72.Wherein:
The configuration unit 71 is suitable for terminal configuring preamble code configuration information, wherein the lead code configuration information packet
Include: the number of the corresponding subset of available first preamble sequence, the identification information of the corresponding subset of each wave beam and
The quantity information of available first lead code described in each subset；First lead code is competition lead code or non-competing
Strive lead code；
The transmission unit 72, suitable for the lead code configuration information is sent to the terminal.
In one embodiment of this invention, first lead code is competition lead code, the lead code of each subset
Sequence is the available competition preamble sequence.
In another embodiment of the invention, before the preamble sequence of each subset includes: the available competition
Code-guiding sequence and the available non-competing preamble sequence.
In one embodiment of this invention, it is wrapped in lead code configuration information of the configuration unit 71 for terminal configuration
It includes: the lead code configuration information further include: the quantity information of all available lead codes in each subset.
Referring to Fig. 8, the embodiment of the invention also provides a kind of terminal 80, the terminal 80 may include: receiving unit 81
And first recognition unit 82.Wherein:
The receiving unit 81, suitable for receiving lead code configuration information；The lead code configuration information includes: available
The number of the corresponding subset of first preamble sequence, the identification information and each son of the corresponding subset of each wave beam
The quantity information of available first lead code described in collection；First lead code is competition lead code or non-competing lead code；
First recognition unit 82, suitable for matching confidence based on the lead code when receiving lead code configuration information
Breath, using preset lead code identification method, the corresponding preamble sequence range of the predetermined access wave beam of identification terminal.
In one embodiment of the invention, first lead code is competition lead code, the lead code sequence of each subset
Column are the available competition preamble sequence.
In one embodiment of the invention, first recognition unit, suitable for competing preamble sequence in each subset
Quantity information and the subset number, determine starting index and the end of the corresponding subset of access wave beam of the terminal
Index.
In one embodiment of the invention, the terminal 80 further include: the second recognition unit (not shown) is suitable for based on described
The quantity information that preamble sequence is competed in the number of subset and each subset, determines the available non-competing lead code
The quantity of sequence, and the available non-competing lead code is identified from the terminal available preamble sequence range end inverted order
Sequence context.
In one embodiment of the invention, the preamble sequence of each subset includes: the available competition lead code
Sequence and the available non-competing preamble sequence.
In one embodiment of the invention, first lead code is competition lead code；First recognition unit 82, is suitable for
Based on the number for the quantity information and the subset for competing preamble sequence in each subset, connecing for the terminal is determined
Enter the starting index and end index of the corresponding subset of wave beam；The starting rope of the corresponding subset of access wave beam based on the terminal
Draw and end indexes and the quantity information for accessing competition preamble sequence in the corresponding subset of wave beam of the terminal, determines
The quantity information of non-competing preamble sequence in the corresponding subset of access wave beam of the terminal, and from the access wave of the terminal
The end inverted order of the corresponding subset of beam identifies the sequence context of non-competing lead code, determines that the access wave beam of the terminal is corresponding
The starting index of non-competing lead code and end index in subset；The starting of the corresponding subset of access wave beam based on the terminal
The starting index of non-competing lead code and end in the corresponding subset of the access wave beam of index and end index and the terminal
Index determines the starting index and end index that lead code is competed in the corresponding subset of access wave beam of the terminal.
In one embodiment of the invention, the lead code configuration information further include: all available in each subset
The quantity information of lead code.
In specific implementation, first lead code is competition lead code；First recognition unit 82 is suitable for based on every
Of the quantity information of all available lead codes and the corresponding subset of available competition preamble sequence in a subset
Number determines the starting index and end index of the corresponding subset of access wave beam of the terminal；Access wave based on the terminal
The starting index of the corresponding subset of beam and end index, and available competition is leading in the corresponding subset of access wave beam of the terminal
The quantity information of code sequence determines the quantity letter of available non-competing lead code in the corresponding subset of access wave beam of the terminal
Breath, and the end inverted order of the corresponding subset of access wave beam from the terminal identifies the sequence model of available non-competing lead code
It encloses, determines the starting index and end index of non-competing lead code in the corresponding subset of access wave beam of the terminal；Based on institute
State the starting index of the corresponding subset of access wave beam of terminal and the corresponding son of access wave beam of end index and the terminal
The starting index of non-competing lead code and end index, determine competing in the corresponding subset of access wave beam of the terminal in collection
Strive the starting index and end index of lead code.
In specific implementation, in each subset available first lead code quantity information are as follows: each subset
In available first lead code total number information or each subset in available competition lead code and non-competing lead code
Percent information.
The embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer instruction, special
The step of sign is, the computer instruction executes the configuration method of above-mentioned lead code when running.
The embodiment of the present invention also provides another computer readable storage medium, is stored thereon with computer instruction, special
The step of sign is, the computer instruction executes the recognition methods of above-mentioned lead code when running.
In specific implementation, the computer readable storage medium can be CD, mechanical hard disk, solid state hard disk etc..
The specific implementation of base station and terminal and beneficial effect can be respectively referring to the embodiment of the present invention in the embodiment of the present invention
In lead code configuration method and recognition methods, details are not described herein.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (28)
1. a kind of configuration method of lead code characterized by comprising
For terminal configuring preamble code configuration information, wherein the lead code configuration information includes: available first preamble sequence
The number of corresponding subset, it is available described in the identification information of the corresponding subset of each wave beam and each subset
The quantity information of first lead code；First lead code is competition lead code or non-competing lead code；
The lead code configuration information is sent to the terminal.
2. the configuration method of lead code as described in claim 1, which is characterized in that first lead code is that competition is leading
Code, the preamble sequence of each subset is the available competition preamble sequence.
3. the configuration method of lead code as described in claim 1, which is characterized in that the preamble sequence packet of each subset
It includes: the available competition preamble sequence and the available non-competing preamble sequence.
4. the configuration method of lead code as claimed in claim 3, which is characterized in that the lead code configuration information further include:
The quantity information of all available lead codes in each subset.
5. a kind of recognition methods of lead code characterized by comprising
When receiving lead code configuration information, it is based on the lead code configuration information, using preset lead code identification method,
The corresponding preamble sequence range of the predetermined access wave beam of identification terminal；The lead code configuration information includes: available
The number of the corresponding subset of first preamble sequence, the identification information and each son of the corresponding subset of each wave beam
The quantity information of available first lead code described in collection；First lead code is competition lead code or non-competing lead code.
6. the recognition methods of lead code as claimed in claim 5, which is characterized in that first lead code is that competition is leading
Code, the preamble sequence of each subset is the available competition preamble sequence.
7. the recognition methods of lead code as claimed in claim 6, which is characterized in that described to use preset lead code identification side
Formula, the corresponding preamble sequence range of the predetermined access wave beam of identification terminal, comprising:
Based on the number for the quantity information and the subset for competing preamble sequence in each subset, the terminal is determined
The corresponding subset of access wave beam starting index and end index.
8. the recognition methods of lead code as claimed in claim 7, which is characterized in that further include:
The quantity information that preamble sequence is competed in number and each subset based on the subset, determines described available
The quantity of non-competing preamble sequence, and it is described available from the identification of the terminal available preamble sequence range end inverted order
Non-competing preamble sequence range.
9. the recognition methods of lead code as claimed in claim 5, which is characterized in that the preamble sequence packet of each subset
It includes: the available competition preamble sequence and the available non-competing preamble sequence.
10. the recognition methods of lead code as claimed in claim 9, which is characterized in that first lead code is that competition is leading
Code；
It is described to use preset lead code identification method, the corresponding preamble sequence model of the predetermined access wave beam of identification terminal
It encloses, comprising:
Based on the number for the quantity information and the subset for competing preamble sequence in each subset, the terminal is determined
The corresponding subset of access wave beam starting index and end index；
The starting index of the corresponding subset of access wave beam based on the terminal and the access wave of end index and the terminal
The quantity information that preamble sequence is competed in the corresponding subset of beam, determines non-competing in the corresponding subset of access wave beam of the terminal
Strive the quantity information of preamble sequence, and the corresponding subset of access wave beam from the terminal the identification of end inverted order it is non-competing before
The sequence context of leading code determines the starting index of non-competing lead code and end in the corresponding subset of access wave beam of the terminal
Index；
The starting index of the corresponding subset of access wave beam based on the terminal and the access wave of end index and the terminal
The starting index of non-competing lead code and end index, determine the corresponding son of access wave beam of the terminal in the corresponding subset of beam
Concentrate the starting index and end index of competition lead code.
11. the recognition methods of lead code as claimed in claim 5, which is characterized in that the lead code configuration information further include:
The quantity information of all available lead codes in each subset.
12. the recognition methods of lead code as claimed in claim 11, which is characterized in that first lead code is that competition is leading
Code；
It is described to use preset lead code identification method, the corresponding preamble sequence model of the predetermined access wave beam of identification terminal
It encloses, comprising:
Quantity information and available competition preamble sequence based on all available lead codes in each subset are corresponding
Subset number, determine the starting index and end index of the corresponding subset of access wave beam of the terminal；
The starting index and end index of the corresponding subset of access wave beam based on the terminal, the access wave beam pair of the terminal
The quantity information of available competition preamble sequence in the subset answered, determining can in the corresponding subset of access wave beam of the terminal
The quantity information of non-competing lead code, and the end inverted order identification of the corresponding subset of access wave beam from the terminal is available
Non-competing lead code sequence context, determine the starting of non-competing lead code in the corresponding subset of access wave beam of the terminal
Index and end index；
The starting index of the corresponding subset of access wave beam based on the terminal and the access wave of end index and the terminal
The starting index of non-competing lead code and end index, determine that the access wave beam of the terminal is corresponding in the corresponding subset of beam
The starting index of the middle competition lead code of subset and end index.
13. the recognition methods of lead code as claimed in claim 5, which is characterized in that available first in each subset
The quantity information of lead code are as follows: the total number information of available first lead code or each subset in each subset
In it is available competition lead code and non-competing lead code percent information.
14. a kind of base station characterized by comprising
Configuration unit is suitable for terminal configuring preamble code configuration information, wherein the lead code configuration information includes: available
The number of the corresponding subset of first preamble sequence, the identification information and each son of the corresponding subset of each wave beam
The quantity information of available first lead code described in collection；First lead code is competition lead code or non-competing lead code；
Transmission unit, suitable for the lead code configuration information is sent to the terminal.
15. base station as claimed in claim 14, which is characterized in that first lead code is competition lead code, each described
The preamble sequence of subset is the available competition preamble sequence.
16. base station as claimed in claim 14, which is characterized in that the preamble sequence of each subset include: it is described can
Competition preamble sequence and the available non-competing preamble sequence.
17. base station as claimed in claim 16, which is characterized in that the lead code configuration information further include: each son
Concentrate the quantity information of all available lead codes.
18. a kind of terminal characterized by comprising
Receiving unit, suitable for receiving lead code configuration information；The lead code configuration information includes: available first lead code
The number of the corresponding subset of sequence, can described in the identification information of the corresponding subset of each wave beam and each subset
The quantity information of first lead code；First lead code is competition lead code or non-competing lead code；
First recognition unit, suitable for being based on the lead code configuration information when receiving lead code configuration information, using default
Lead code identification method, the corresponding preamble sequence range of the predetermined access wave beam of identification terminal.
19. terminal as claimed in claim 18, which is characterized in that first lead code is competition lead code, each described
The preamble sequence of subset is the available competition preamble sequence.
20. terminal as claimed in claim 19, which is characterized in that first recognition unit is suitable in each subset
The quantity information of preamble sequence and the number of the subset are competed, determines the corresponding subset of access wave beam of the terminal
Starting index and end index.
21. terminal as claimed in claim 20, which is characterized in that further include:
Second recognition unit, suitable for competing the quantity letter of preamble sequence in number and each subset based on the subset
Breath, determines the quantity of the available non-competing preamble sequence, and from the terminal available preamble sequence range end
Inverted order identifies the available non-competing preamble sequence range.
22. terminal as claimed in claim 18, which is characterized in that the preamble sequence of each subset include: it is described can
Competition preamble sequence and the available non-competing preamble sequence.
23. terminal as claimed in claim 22, which is characterized in that first lead code is competition lead code；Described first
Recognition unit, suitable for the number based on the quantity information and the subset for competing preamble sequence in each subset, really
The starting index and end index of the corresponding subset of access wave beam of the fixed terminal；Access wave beam based on the terminal is corresponding
The starting index of subset and the corresponding subset of access wave beam of end index and the terminal in compete preamble sequence
Quantity information, determines the quantity information of non-competing preamble sequence in the corresponding subset of access wave beam of the terminal, and from institute
The end inverted order for stating the corresponding subset of access wave beam of terminal identifies the sequence context of non-competing lead code, determines the terminal
Access the starting index of non-competing lead code and end index in the corresponding subset of wave beam；Access wave beam pair based on the terminal
Non-competing lead code in the corresponding subset of the access wave beam of the starting index for the subset answered and end index and the terminal
Starting index and end index determine starting index and the end that lead code is competed in the corresponding subset of access wave beam of the terminal
Pygochord draws.
24. terminal as claimed in claim 18, which is characterized in that the lead code configuration information further include: each son
Concentrate the quantity information of all available lead codes.
25. terminal as claimed in claim 24, which is characterized in that first lead code is competition lead code；
First recognition unit suitable for the quantity information based on all available lead codes in each subset and can be used
The corresponding subset of competition preamble sequence number, determine the corresponding subset of access wave beam of the terminal starting index and
End index；The starting index and end index of the corresponding subset of access wave beam based on the terminal, the access of the terminal
The quantity information of available competition preamble sequence, determines the corresponding son of access wave beam of the terminal in the corresponding subset of wave beam
The quantity information of available non-competing lead code is concentrated, and the end inverted order of the corresponding subset of access wave beam from the terminal is known
The sequence context of not available non-competing lead code, determines non-competing lead code in the corresponding subset of access wave beam of the terminal
Starting index and end index；The starting index and end index of the corresponding subset of access wave beam based on the terminal and
The starting index and end index of non-competing lead code, determine the terminal in the corresponding subset of access wave beam of the terminal
The corresponding subset of access wave beam middle competition lead code starting index and end index.
26. terminal as claimed in claim 18, which is characterized in that the quantity of available first lead code in each subset
Information are as follows: available competition in the total number information of available first lead code or each subset in each subset
The percent information of lead code and non-competing lead code.
27. a kind of computer readable storage medium, is stored thereon with computer instruction, which is characterized in that the computer instruction
Perform claim requires the step of configuration method of any one of 1 to 4 lead code when operation.
28. a kind of computer readable storage medium, is stored thereon with computer instruction, which is characterized in that the computer instruction
Perform claim requires the step of recognition methods of any one of 5 to 13 lead codes when operation.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| WO2024055297A1 (en) * | 2022-09-16 | 2024-03-21 | 华为技术有限公司 | Random access method and communication apparatus |
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