CN109274628A - Uplink service sending method and device in a kind of multi-sub-band system - Google Patents
Uplink service sending method and device in a kind of multi-sub-band system Download PDFInfo
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- CN109274628A CN109274628A CN201710581558.7A CN201710581558A CN109274628A CN 109274628 A CN109274628 A CN 109274628A CN 201710581558 A CN201710581558 A CN 201710581558A CN 109274628 A CN109274628 A CN 109274628A
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- uplink
- subband
- synchronizing signals
- sub
- sequence
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2673—Details of algorithms characterised by synchronisation parameters
- H04L27/2675—Pilot or known symbols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2669—Details of algorithms characterised by the domain of operation
- H04L27/2672—Frequency domain
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/0005—Synchronisation arrangements synchronizing of arrival of multiple uplinks
Abstract
The present invention provides uplink service sending method and device in a kind of multi-sub-band system, which comprises S1, obtains uplink synchronizing signals；S2, on the first subband of the multi-sub-band system non-resident subband starting or the uplink pilot time slot physical channel position of the second subband, add the uplink synchronizing signals；S3, when the uplink service triggering when, send the uplink synchronizing signals.The present invention is by adding uplink synchronizing signals so that mobile subscriber is not in uplink loss and guaranteeing the stability of uplink service on the first subband of the non-resident subband starting of multi-sub-band system or the uplink pilot time slot physical channel position of the second subband.
Description
Technical field
The present invention relates to fields of communication technology, more particularly, to the uplink service sender in a kind of multi-sub-band system
Method and device.
Background technique
It is currently, there are a kind of multi-subband communication system, the authorization frequency point of the multi-subband communication system is discrete to be distributed in
223.525MHz-231.65MHz frequency range on, the bandwidth of each frequency point is 25KHz.Wherein, the authorization frequency point is divided into
Resident area's subband, remaining frequency point are divided into workspace subband, and resident area's subband can further be divided into synchronous subband and business
Band.Position uplink pilot time slot physical channel (UpPTS) in each service sub-band is assigned to uplink scheduling request
The position of (Scheduling Request, SR), produces 8 lead codes by cyclic shift on this position
(Preamble)。
The interference of neighboring community in order to prevent, in every 8 radio frames, each cell can be assigned to a UpPTS time slot
Uplink SR transmission is carried out, each cell determines the radio frames selected by the mode corresponding with frame number mould 8 of cell ID number mould 8
It is which of 8 radio frames.The SR channel architecture of current multi-subband communication system is as shown in Figure 1, dispatch week with SR
The each cell of phase SrCycle shares 40 SR scheduling resources.
But SR channel in the prior art is used only as scheduling request, when user terminal (UE) and base station clock jitter or
When the mobile generation of person UE, there can be the hidden danger of uplink loss, influence the stability of uplink service.
Summary of the invention
The present invention provides a kind of a kind of multi-sub-band system for overcoming the above problem or at least being partially solved the above problem
In uplink service sending method and device.
According to an aspect of the present invention, the uplink service sending method in a kind of multi-sub-band system is provided, comprising:
S1, uplink synchronizing signals are obtained；
The uplink pilot time slot object of S2, the first subband or the second subband that are originated in the non-resident subband of the multi-sub-band system
It manages on channel position, adds the uplink synchronizing signals；
S3, when the uplink service triggering when, send the uplink synchronizing signals.
Wherein, step S1 includes:
S11, it is based on preset parameter, obtains the uplink synchronizing signals basic sequence；
S12, the cycle offset based on the basic sequence, determine the uplink synchronizing signals.
Wherein, step S11 includes:
Based on the preset parameter, ZC sequence is generated；
Discrete Fourier transform is carried out to the ZC sequence, obtains the frequency-region signal sequence of the ZC sequence；
The zero padding in the frequency-region signal sequence of the ZC sequence, until sequence length reaches preset value；
Inverse discrete Fourier transform and cyclic shift are carried out to the sequence after zero padding, obtain the uplink synchronizing signals motif
Column.
Wherein, step S2 includes:
S21, in the multi-sub-band system, obtain the first subband or second son in the non-resident subband starting
In band on uplink pilot time slot physical channel position, 8 code resources of the basic sequence cyclic shift generation；
S22, in 8 code resources, wherein 1 code resource gives the uplink synchronizing signals for distribution.
Wherein, step S3 includes:
When there is uplink service triggering, uplink synchronizing signals described in periodicity sending.
Wherein, when the uplink service is multi-subband business, when the uplink service is multi-subband business, described
In the non-resident area of multi-sub-band system, according to first subband and the corresponding candidate resource position of the second subband, selection is corresponding
Authorization candidate resource position as transmission subband.
Wherein, when the uplink service is list band business, in the resident area or non-resident area of the multi-sub-band system
In, select the list band of an authorization as transmission subband.
The second aspect provided according to the present invention, the present invention provide the uplink service in a kind of multi-sub-band system and send dress
It sets, comprising:
Module is obtained, for obtaining uplink synchronizing signals；
Adding module, in the first subband of the non-resident subband starting of the multi-sub-band system or the uplink of the second subband
On pilot time slot physical channel position, the uplink synchronizing signals are added；
Sending module, for sending the uplink synchronizing signals when uplink service triggering.
According to the third aspect of the invention we, a kind of computer program product, including program code, said program code are provided
For executing uplink service sending method described above.
According to the fourth aspect of the invention, a kind of non-transient computer readable storage medium is provided, for storing such as preceding institute
The computer program stated.
The present invention by multi-sub-band system non-resident subband starting the first subband or the second subband ascending pilot frequency when
On gap physical channel position, uplink synchronizing signals are added, so that mobile subscriber is not in uplink loss, it is ensured that uplink service is more
Add stabilization.
Detailed description of the invention
Fig. 1 is the SR channel architecture figure of multi-subband communication system in the prior art；
Fig. 2 is the uplink service sending method flow chart in a kind of multi-sub-band system provided in an embodiment of the present invention；
Fig. 3 is cell signal structure chart provided in an embodiment of the present invention；
Fig. 4 is the uplink service sending device structure chart in a kind of multi-sub-band system provided in an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Fig. 2 is the uplink service sending method flow chart in a kind of multi-sub-band system provided in an embodiment of the present invention, such as Fig. 2
It is shown, comprising:
S1, uplink synchronizing signals are obtained；
The uplink pilot time slot object of S2, the first subband or the second subband that are originated in the non-resident subband of the multi-sub-band system
It manages on channel position, adds the uplink synchronizing signals；
S3, when the uplink service triggering when, send the uplink synchronizing signals.
In S1, the uplink synchronizing signals are the uplink synchronous resources that the multi-sub-band system configures in the channel, can be with
Understanding, SR channel in the prior art is used only as not configuring corresponding uplink synchronous resource in scheduling request, so
As the movement of UE and the clock jitter or UE of base station will cause uplink loss.
The uplink loss is referred to as losing the state of uplink synchronous in uplink business, and the uplink synchronous is usually
Refer in same cell, the uplink signal sent using the user of the different location of same time slot is reached base station simultaneously and receives day
Line.
In S2, the multi-sub-band system is a kind of communication system with multiple working bands provided in an embodiment of the present invention
System, it is to be understood that when the multi-sub-band system, when uplink synchronizing signals sending cycle reaches and has synchronization signal resource
Uplink synchronizing signals are initiated in the uplink synchronous position for transmitting subband: if terminal carries out list band business in resident area, nothing
Synchronization signal resource, then can be by the list band traffic scheduling to non-resident subband, to guarantee that the list tape terminal has uplink
Synchronization signal.
In S2, first subband and the second subband are equipped with uplink pilot time slot physical channel (UpPTS), described
UpPTS is the slotted physical channel of exclusive uplink traffic transmission process configuration, it is to be understood that transmission subband is according to authorization institute
Search space candidate resource position determine, the first candidate resource position corresponds to first subband, the second candidate resource
Position corresponds to second subband, and uplink synchronizing signals are added on the position UpPTS, then realizing is not influencing to dispatch resource
Under the premise of isochronous resources configuration, the uplink synchronizing signals of addition can be compatible with the channel slot structure of current system, no
Current communication networks can be impacted.
It should be noted that in order to guarantee that each cell can be assigned to the hair that a UpPTS carries out uplink synchronizing signals
It send, we divide cell in the way of code point or time-division, and the cell channel structure chart after division is as shown in Figure 3.
In S3, according to type of service, periodicity sending uplink synchronizing signals, sending cycle can match；Event triggering,
Upstream synchronous timing device is opened when having business, when timer reaches a preset threshold, triggering uplink synchronizing signals are sent, should
Base station must assure that mobile terminal is constantly in uplink sync status before timer expiry, and mobile terminal is avoided to enter uplink mistake
Step state.
The embodiment of the present invention passes through in the first subband of the non-resident subband starting of multi-sub-band system or the uplink of the second subband
On pilot time slot physical channel position, uplink synchronizing signals are added, so that mobile subscriber is not in uplink loss, it is ensured that uplink
Business is more stable, and the uplink synchronizing signals added, can be compatible with the channel slot structure of current system, will not be to working as
Preceding communication system impacts.
On the basis of the above embodiments, step S1 includes:
S11, it is based on preset parameter, obtains the uplink synchronizing signals basic sequence；
S12, the cycle offset based on the basic sequence, determine the uplink synchronizing signals.
In S11, the preset parameter is the sequence for the uplink synchronizing signals that the embodiment of the present invention obtains as needed
The value freely set up, the embodiment of the present invention do not do numerical definiteness to this.
Wherein, step S11 is specifically included:
Based on the preset parameter, ZC sequence is generated；
Discrete Fourier transform is carried out to the ZC sequence, obtains the frequency-region signal sequence of the ZC sequence；
The zero padding in the frequency-region signal sequence of the ZC sequence, until sequence length reaches preset value；
Inverse discrete Fourier transform and cyclic shift are carried out to the sequence after zero padding, obtain the uplink synchronizing signals motif
Column.
Specifically, generating ZC sequence using root parameter u first:
Wherein, u is from the root parameter set；
Then discrete Fourier transform is carried out to the ZC sequence, obtains the frequency-region signal sequence of the ZC sequence:
The zero padding in the frequency-region signal sequence of the ZC sequence, until sequence length reaches preset value:
X=[Xu((Nzc-1)/2),…,Xu(Nzc-1),0,0,…,0,Xu(0),Xu(1),…Xu((Nzc-1)/2-1)],
Wherein, NSEQPoints are the preset value of sequence length；
Inverse discrete Fourier transform and cyclic shift finally are carried out to the sequence after zero padding, obtain the uplink synchronizing signals
Basic sequence:
su(n)=circshift (ifft (X (k)), Ncp)/(NZC/NSEQ)。
On the basis of the above embodiments, step S2 includes:
S21, in the multi-sub-band system, obtain the first subband or second son in the non-resident subband starting
In band on uplink pilot time slot physical channel position, 8 code resources of the basic sequence cyclic shift generation；
S22, in 8 code resources, wherein 1 code resource gives the uplink synchronizing signals for distribution.
In S22, according to basic sequence cyclic shift generate 8 code resources, select wherein 1 code resource as the uplink
Synchronization signal.
It is understood that calculating the cycle offset of uplink synchronizing signals are as follows:
Su,v(n)=Su((n-Cv)modNSEQ)), n=0 ..., NSEQ+ Ncp-1,
Wherein,
Wherein, v is cyclic shift index, and the value range of v is 0-7.
On the basis of the above embodiments, the multi-sub-band system is in non-resident area.
It is understood that multi-sub-band system mentioned above is in order to solve uplink loss, so that the uplink of configuration is same
Walk signal.There is no uplink synchronizing signals resources for subband so in resident area, therefore only in the multi-subband system in non-resident area
System just need to add the uplink synchronous letter on the uplink pilot time slot physical channel position for originating the first subband or the second subband
Number.
On the basis of the above embodiments, step S3 includes:
When uplink service triggering, according to preset sending cycle, periodicity sending uplink synchronizing signals, for example (,) it is preset
Sending cycle is 200ms, then just sends with uplink service at interval of uplink synchronizing signals described in 200ms primary.It needs to illustrate
It is that the embodiment of the present invention does not limit specific sending cycle.
On the basis of the above embodiments, when the uplink service is multi-subband business, when the uplink service is more
When subband business, in the non-resident area of the multi-sub-band system, according to first subband and the corresponding candidate of the second subband
Resource location selects to authorize candidate resource position as transmission subband accordingly.When the uplink service is list band business,
In the resident area or non-resident area of the multi-sub-band system, select the list band of an authorization as transmission subband.
The multi-sub-band system is a kind of communication system with multiple working bands provided in an embodiment of the present invention, can be with
Understand, when the multi-sub-band system, uplink synchronizing signals sending cycle reaches and has and transmitting when synchronization signal resource
Initiate uplink synchronizing signals in the uplink synchronous position of subband: if terminal carries out list band business in resident area, no synchronous letter
Number resource, then can be by the list band traffic scheduling to non-resident subband, to guarantee that the list tape terminal has uplink synchronous letter
Number.
Fig. 4 is the uplink service sending device structure chart in a kind of multi-sub-band system provided in an embodiment of the present invention, such as Fig. 4
It is shown, comprising: to obtain module 1, adding module 2 and sending module 3, wherein
Module 1 is obtained for obtaining uplink synchronizing signals；
Adding module 2 is used for the uplink of the first subband or the second subband in the non-resident subband starting of the multi-sub-band system
On pilot time slot physical channel position, the uplink synchronizing signals are added；
Sending module 3 is used to send the uplink synchronizing signals when uplink service triggering.
Specifically, obtaining module 1 obtains configured uplink synchronizing signals, the adding module 2 is in the multi-subband system
It unites on the first subband of non-resident subband starting or the uplink pilot time slot physical channel position of the second subband, adds the uplink
Synchronization signal, the sending module 3 is triggered in uplink service, when needing to send uplink service, sends uplink synchronizing signals.
The embodiment of the present invention is sub in the first subband of the non-resident subband starting of multi-sub-band system or second by adding module
On the uplink pilot time slot physical channel position of band, addition obtains the uplink synchronizing signals that module obtains, so that mobile subscriber is not
It will appear uplink loss, it is ensured that business is more stable.
The present embodiment provides the uplink service sending devices in a kind of multi-sub-band system, comprising: at least one processor；With
And at least one processor being connect with the processor communication, in which:
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to refer to
It enables to execute method provided by above-mentioned each method embodiment, for example, S1, obtain uplink synchronizing signals；S2, described more
On first subband of the non-resident subband starting of sub-band system or the uplink pilot time slot physical channel position of the second subband, institute is added
State uplink synchronizing signals；S3, when the uplink service triggering when, send the uplink synchronizing signals.
The present embodiment discloses a kind of computer program product, and the computer program product includes being stored in non-transient calculating
Computer program on machine readable storage medium storing program for executing, the computer program include program instruction, when described program instruction is calculated
When machine executes, computer is able to carry out method provided by above-mentioned each method embodiment, for example, S1, obtains uplink synchronous
Signal；The uplink pilot time slot physics of S2, the first subband or the second subband that are originated in the non-resident subband of the multi-sub-band system
On channel position, the uplink synchronizing signals are added；S3, when the uplink service triggering when, send the uplink synchronizing signals.
The present embodiment provides a kind of non-transient computer readable storage medium, the non-transient computer readable storage medium
Computer instruction is stored, the computer instruction makes the computer execute method provided by above-mentioned each method embodiment, example
Such as include: S1, obtain uplink synchronizing signals；S2, the first subband or second originated in the non-resident subband of the multi-sub-band system
On the uplink pilot time slot physical channel position of subband, the uplink synchronizing signals are added；S3, when the uplink service trigger
When, send the uplink synchronizing signals.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, the present processes are only preferable embodiment, it is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (10)
1. the uplink service sending method in a kind of multi-sub-band system characterized by comprising
S1, uplink synchronizing signals are obtained；
S2, believe in the first subband of the non-resident subband starting of the multi-sub-band system or the uplink pilot time slot physics of the second subband
On road position, the uplink synchronizing signals are added；
S3, when the uplink service triggering when, send the uplink synchronizing signals.
2. the method according to claim 1, wherein step S1 includes:
S11, it is based on preset parameter, obtains the uplink synchronizing signals basic sequence；
S12, the cycle offset based on the basic sequence, determine the uplink synchronizing signals.
3. according to the method described in claim 2, it is characterized in that, step S11 includes:
Based on the preset parameter, ZC sequence is generated；
Discrete Fourier transform is carried out to the ZC sequence, obtains the frequency-region signal sequence of the ZC sequence；
The zero padding in the frequency-region signal sequence of the ZC sequence, until sequence length reaches preset value；
Inverse discrete Fourier transform and cyclic shift are carried out to the sequence after zero padding, obtain the uplink synchronizing signals basic sequence.
4. according to the method described in claim 3, it is characterized in that, step S2 includes:
S21, in the multi-sub-band system, obtain in the first subband or second subband of the non-resident subband starting
On uplink pilot time slot physical channel position, 8 code resources of the basic sequence cyclic shift generation；
S22, in 8 code resources, wherein 1 code resource gives the uplink synchronizing signals for distribution.
5. the method according to claim 1, wherein step S3 includes:
When there is uplink service triggering, uplink synchronizing signals described in periodicity sending.
6. the method according to claim 1, wherein when the uplink service be multi-subband business when, described
In the non-resident area of multi-sub-band system, according to first subband and the corresponding candidate resource position of the second subband, selection is corresponding
Authorization candidate resource position as transmission subband.
7. according to method described in right 1, which is characterized in that when the uplink service is list band business, described mostly sub
In resident area or non-resident area with system, select the list band of an authorization as transmission subband.
8. the uplink service sending device in a kind of multi-sub-band system characterized by comprising
Module is obtained, for obtaining uplink synchronizing signals；
Adding module, in the first subband of the non-resident subband starting of the multi-sub-band system or the ascending pilot frequency of the second subband
On slotted physical channel position, the uplink synchronizing signals are added；
Sending module, for sending the uplink synchronizing signals when uplink service triggering.
9. a kind of computer program product, which is characterized in that the computer program product includes being stored in non-transient computer
Computer program on readable storage medium storing program for executing, the computer program include program instruction, when described program is instructed by computer
When execution, the computer is made to execute the sending method as described in claim 1 to 7 is any.
10. a kind of non-transient computer readable storage medium, which is characterized in that the non-transient computer readable storage medium is deposited
Computer instruction is stored up, the computer instruction makes the computer execute the sending method as described in claim 1 to 7 is any.
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| CN109274628B (en) | 2021-08-03 |
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