CN109922525A - Communication-based train control system CBTC business scheduling method and device - Google Patents
Communication-based train control system CBTC business scheduling method and device Download PDFInfo
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Abstract
The present invention provides a kind of communication-based train control system CBTC business scheduling method and device.Communication-based train control system CBTC business scheduling method provided by the invention, it include: that terminal receives the resource allocation message that base station is sent, resource allocation message is used to indicate the transfer resource of business, transfer resource is allocated by base station according to service priority, and the priority of CBTC business is higher than the priority of other business；Terminal carries out the transmission of CBTC business and/or the transmission of other business with base station according to the transfer resource of business indicated in resource allocation message.Communication-based train control system CBTC business scheduling method and device provided by the invention can preferentially ensure the normal transmission of CBTC business, and then provide safeguard safely to rail traffic.
Description
Technical field
The present invention relates to wireless communication technique more particularly to a kind of communication-based train control system CBTC traffic schedulings
Method and apparatus.
Background technique
With the rapid development of the communication technology especially wireless communication technique, communication-based train control system
(Communication Based Train Control System, referred to as: CBTC) has obtained rapid development and has widely answered
With.System is communicated CBTC by wireless communication, without being laid with many and diverse cable, reduce cable laying and maintenance at
This；The two-way communication of vehicle and control centre may be implemented in CBTC, and train interval handling capacity is greatly improved；CBTC information
Transmission flow is big, high-efficient, speed is fast, moving automatic block system easy to accomplish；CBTC can adapt to various different automobile types, no
Same speed, different freight volume, different mode of traction train, compatibility is strong；CBTC can by information classify transmit, concentrate send and
Centralized processing, can be improved the working efficiency of control centre.CBTC have many advantages, such as it is above-mentioned, be widely used in city rail friendship
It is logical, such as subway, light rail.
LTE-M (LTE-Machine-to-Machine, referred to as: LTE-M) is used as a kind of advanced wireless communication technique, energy
Enough meets the needs of high-throughput, in the case where 20MHz bandwidth networking, peak rate downlink can up to 100Mbit/s, uplink
Up to 50Mbit/s, orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, letter are used
Claim: OFDM), multiple-input and multiple-output (Multiple-Input Multiple-Output, referred to as: MIMO), mixed automatic retransfer
The advanced technologies such as request (Hybrid Automatic Repeat reQuest, referred to as: HARQ), effectively increase data rate,
Spectrum efficiency and anti-interference, the priority scheduling and high-speed mobility for providing integrated service carrying are supported, and are passed through anti-interference
Technology and security mechanism guarantee the safe and reliable transmission of wireless data service.Therefore, the CBTC system based on LTE-M can solve
Present in CBTC system certainly based on Wireless LAN (Wireless Local Area Networks, referred to as: WLAN)
Drawback is gradually replacing the CBTC system based on WLAN to become the land mobile communication system of mainstream.
According to the regulation of LTE-M agreement, CBTC business and voice service are deployed in identical QCI1 carrying, if burst is a large amount of
Voice service will affect the normal transmission of CBTC business, and then threaten rail traffic public safety.
Summary of the invention
The present invention provides a kind of communication-based train control system CBTC business scheduling method and device, existing to solve
The reliability of CBTC business cannot ensure in technology, and then the problem of influence rail traffic public safety.
In a first aspect, the embodiment of the present invention provides a kind of communication-based train control system CBTC business scheduling method,
It include: that terminal receives the resource allocation message that base station is sent, resource allocation message is used to indicate the transfer resource of business, transmission money
Source is allocated by base station according to service priority, and the priority of CBTC business is higher than the priority of other business；
Terminal carries out the transmission of CBTC business with base station according to the transfer resource of business indicated in resource allocation message
And/or the transmission of other business.
Further, in one possible implementation, before terminal receives the resource allocation message that base station is sent, also
Include:
Terminal sends buffer status report BSR to base station, and buffer status report instruction terminal needs to upload the logic of data
Channel packet, and the data amount information corresponding to logic channel grouping.
Further, in one possible implementation, logic channel is divided into 0,1,2,3 four channel packet,
Wherein logic channel grouping 0 includes QCI5, SRB1 and SRB2 business, and logic channel grouping 1 includes CBTC business, logic channel point
Group 2 includes the corresponding QCI1 business of voice, and logic channel grouping 3 includes other all business in addition to above-mentioned business.
Further, in one possible implementation, logic channel is divided into 0,1,2,3,4 five channels point
Group, wherein logic channel grouping 0 includes QCI5, SRB1 and SRB2 business, and logic channel grouping 1 includes CBTC business, logic letter
Road grouping 2 includes the corresponding QCI1 business of voice, and logic channel grouping 3 includes QCI2, QCI3, QCI4 business, logic channel point
Group 4 includes other all business in addition to above-mentioned business.
Further, in one possible implementation, CBTC business and other business are indicated in buffer status report
Use different logic channels.
Second aspect, the embodiment of the present invention provide a kind of communication-based train control system CBTC business scheduling method,
Include:
The determining service priority information between terminal in base station, the priority of CBTC business are higher than the preferential of other business
Grade；
The transfer resource of base station business according to involved in service priority information distribution services precedence information；
Base station sends resource allocation message to terminal, and resource allocation message is used to indicate in service priority information involved
Business transfer resource；
Base station carries out the transmission of CBTC business with terminal according to the transfer resource of business indicated in resource allocation message
And/or the transmission of other business.
Further, in one possible implementation, before the determining service priority between terminal in base station, also
Include:
Base station receives the buffer status report that terminal is sent, and buffer status report instruction terminal needs to upload the logic of data
Channel packet, and the data amount information corresponding to logic channel grouping.
Further, in one possible implementation, base station adjusts distributed business according to data amount information
Transfer resource.
Further, in one possible implementation, CBTC business and other business are indicated in resource allocation message
Use different logic channels.
The third aspect, the embodiment of the present invention provide a kind of communication-based train control system CBTC traffic scheduling device,
Include:
Transceiver, for receiving the resource allocation message of base station transmission, resource allocation message is used to indicate the transmission of business
Resource, transfer resource are allocated by base station according to service priority, and the priority of CBTC business is higher than the preferential of other business
Grade；
Processor controls transceiver and base station for the transfer resource according to business indicated in resource allocation message
Carry out the transmission of CBTC business and/or the transmission of other business.
Further, in one possible implementation, transceiver is also used to send buffer status report to base station, delays
Deposit the logic channel grouping that state report instruction terminal needs to upload data, and the data volume letter corresponding to logic channel grouping
Breath.
Further, in one possible implementation, logic channel is divided into 0,1,2,3 four channel packet,
Wherein logic channel grouping 0 includes QCI5, SRB1 and SRB2 business, and logic channel grouping 1 includes CBTC business, logic channel point
Group 2 includes the corresponding QCI1 business of voice, and logic channel grouping 3 includes other all business in addition to above-mentioned business.
Further, in one possible implementation, logic channel is divided into 0,1,2,3,4 five channels point
Group, wherein logic channel grouping 0 includes QCI5, SRB1 and SRB2 business, and logic channel grouping 1 includes CBTC business, logic letter
Road grouping 2 includes the corresponding QCI1 business of voice, and logic channel grouping 3 includes QCI2, QCI3, QCI4 business, logic channel point
Group 4 includes other all business in addition to above-mentioned business.
Further, in one possible implementation, CBTC business and other business are indicated in buffer status report
Use different logic channels.
Fourth aspect, the embodiment of the present invention provide a kind of communication-based train control system CBTC traffic scheduling device,
Include:
Processor, for the service priority information between determination and terminal, the priority of CBTC business is higher than other industry
The priority of business；
Processor is also used to the transmission of the business according to involved in service priority information distribution services precedence information
Resource；
Transceiver, for sending buffer status report to terminal, buffer status report carries the terminal and needs to upload data
Logic channel grouping, and for logic channel grouping data amount information processor, be also used to according to resource allocation message
In indicated business transfer resource, control transceiver and terminal carry out the transmission of CBTC business and/or the transmission of other business.
Further, in one possible implementation, transceiver is also used to determining between terminal in processor
Before service priority information, the buffer status report that terminal is sent is received, buffer status report instruction terminal needs to upload number
According to logic channel grouping, and corresponding to logic channel grouping data amount information.
Further, in one possible implementation, processor is also used to be adjusted according to data amount information and be distributed
Business transfer resource.
Further, in one possible implementation, CBTC business and other business are indicated in resource allocation message
Use different logic channels.
The present invention is based on the train control system CBTC business scheduling methods and device of communication, pass through setting CBTC business
Priority is higher than the priority of other business, is allocated according to the priority of business to transfer resource, has preferentially ensured CBTC
Transfer resource needed for business ensure that the normal transmission of CBTC business, and then provide guarantee for rail traffic public safety.
Detailed description of the invention
In order to illustrate more clearly of the present invention or technical solution in the prior art, below will pair or description of the prior art in
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description be it is of the invention some, for
For those of ordinary skill in the art, without any creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is that the present invention is based on the flow charts of train control system CBTC business scheduling method one embodiment of communication；
Fig. 2 is that the present invention is based on the processes of another embodiment of the train control system CBTC business scheduling method of communication
Figure；
Fig. 3 is that the present invention is based on the processes of another embodiment of the train control system CBTC business scheduling method of communication
Figure；
Fig. 4 is that the present invention is based on the processes of another embodiment of the train control system CBTC business scheduling method of communication
Figure；
Fig. 5 is that the present invention is based on the processes of another embodiment of the train control system CBTC business scheduling method of communication
Figure；
Fig. 6 is that the present invention is based on the structural representations of train control system CBTC traffic scheduling device one embodiment of communication
Figure；
Fig. 7 is that the present invention is based on the structures of the train control system CBTC traffic scheduling device of communication another embodiment to show
It is intended to.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the attached drawing in the present invention, to this
Technical solution in invention is clearly and completely described, it is clear that and described is a part of the invention, rather than whole.
It is obtained by those of ordinary skill in the art without making creative efforts every other based in the present invention,
It shall fall within the protection scope of the present invention.
Fig. 1 is that the present invention is based on the flow charts of train control system CBTC business scheduling method one embodiment of communication.
The executing subject of the present embodiment be terminal device, including but not limited to mobile terminal, fixed terminal, have CBTC business function
Car-mounted terminal.As shown in Figure 1, communication-based train control system CBTC business scheduling method provided in this embodiment include with
Lower step:
Step 101: terminal receives the resource allocation message that base station is sent, and resource allocation message is used to indicate the transmission of business
Resource, transfer resource are allocated by base station according to service priority, and the priority of CBTC business is higher than the preferential of other business
Grade.
For downlink business, base station is determined according to the corresponding descending scheduling priority of the downlink business for being sent to terminal
The priority of various businesses.Wherein, the priority of CBTC business is higher than the priority of other business, such as: it is higher than voice service
Priority.This is because it is traffic assignments transfer resource that base station, which is according to the priority of business, the high business of priority is enjoyed
Therefore the right of preferential allocation of transmission resources is influenced to ensure CBTC business not by other business, ensure CBTC business
Normal transmission, the priority for needing to be arranged CBTC business are higher than the priority of other business.For example, working as the priority of CBTC business
Higher than voice service priority when, so that it may avoid influence of the voice service largely to happen suddenly for CBTC business.For upper
Industry business, terminal determines various businesses priority according to uplink service type to be sent, and notifies base station.Base station is according to each
The priority of business notifies the end of carrying corresponding service by resource allocation message after distributing transfer resource for corresponding service
End so that terminal sends uplink business data in corresponding resource, or receives downlink service data.Wherein, resource allocation
Message can be transmitted in many ways, such as: it can be transmitted by Downlink Control Information.
Wherein, above-mentioned transfer resource can be the various resources being used for transmission between terminal and base station, including shared letter
Road, the resources such as control channel.Such as: by taking downlink business as an example, it can be Physical Downlink Shared Channel, Physical Downlink Control Channel
Etc. resources.
Step 102: terminal carries out CBTC industry with base station according to the transfer resource of business indicated in resource allocation message
Business transmission and/or the transmission of other business.
Terminal is after receiving resource allocation message, according to the transfer resource indicated in message, carries out related service with base station
Transmission, send business datum in corresponding uplink transmission resource, receive data in downlink transfer resource.
Communication-based train control system CBTC business scheduling method provided in this embodiment, terminal is by receiving resource
Assignment messages and according to the transfer resource indicated in message, carry out related service transmission with base station, since base station is according to business
Priority be traffic assignments transfer resource, the priority of CBTC business is higher than the priority of other business, therefore preferential protects
Transfer resource needed for having hindered CBTC business ensure that the normal transmission of CBTC business, and then mention for rail traffic public safety
It has supplied to ensure.
Fig. 2 is that the present invention is based on the processes of another embodiment of the train control system CBTC business scheduling method of communication
Figure.Communication-based train control system CBTC business scheduling method provided in this embodiment can be used in uplink communication.Such as Fig. 2
Shown, before step 101, method provided in this embodiment can also include:
Step 100: terminal sends buffer status report BSR to base station, and buffer status report instruction terminal needs to upload number
According to logic channel grouping, and corresponding to logic channel grouping data amount information.
When terminal has upstream data to need to be sent to base station, terminal determines its service class according to upstream data to be sent
Type determines that its corresponding logic channel is grouped according to type of service, and passes through buffer status report for logic channel grouping and phase
The data amount information answered is sent to the base station.
In one possible implementation, logic channel is divided into 0,1,2,3 four channel packet, and wherein logic is believed
Road grouping 0 includes QCI5, SRB1 and SRB2 business, and logic channel grouping 1 includes CBTC business, and logic channel grouping 2 includes language
The corresponding QCI1 business of sound, logic channel grouping 3 include other all business in addition to above-mentioned business；
Alternatively,
Logic channel is divided into 0,1,2,3, and 4 five channel packets, wherein logic channel grouping 0 includes QCI5, SRB1
With SRB2 business, logic channel grouping 1 includes CBTC business, and logic channel grouping 2 includes the corresponding QCI1 business of voice, logic
Channel packet 3 includes QCI2, QCI3, QCI4 business, and logic channel grouping 4 includes other all business in addition to above-mentioned business.
Indicate that CBTC business is believed from other business using different logics in buffer status report in the various embodiments described above
Road.
Communication-based train control system CBTC business scheduling method provided in this embodiment is sent out by terminal to base station
The buffer status report for carrying its business datum logic channel grouping to be sent is sent, so that transfer resource is preferentially distributed in base station
The higher CBTC business of priority, transfer resource needed for preferentially having ensured CBTC business ensure that the normal biography of CBTC business
It is defeated, and then guarantee is provided for rail traffic public safety；The data amount information that business is indicated by buffer status report, makes base
It stands and adjusts the distribution of transfer resource according to the data amount information of business, not only ensure that the transmission of business, but also improve transfer resource
Utilization rate.
Fig. 3 is that the present invention is based on the processes of another embodiment of the train control system CBTC business scheduling method of communication
Figure.The executing subject of the present embodiment is base station.As shown in figure 3, communication-based train control system provided in this embodiment
CBTC business scheduling method, comprising the following steps:
Step 301, the determining service priority information between terminal in base station, the priority of CBTC business are higher than other industry
The priority of business.
For downlink business, base station is determined according to the corresponding descending scheduling priority of the downlink business for being sent to terminal
The priority of various businesses.Wherein, the priority of CBTC business is higher than the priority of other business, such as: it is higher than voice service
Priority.For uplink service, base station can pass through carrying type of service that terminal is sent or service priority information
Instruction message determines that terminal is sent to the priority of the uplink service of base station, and wherein the precedence information of CBTC business is higher than
The priority of other business.
The transmission of step 302, base station business according to involved in service priority information distribution services precedence information
Resource.
Base station according to the precedence information of business be traffic assignments transfer resource, specifically, priority it is high business it is preferential
Allocation of transmission resources.The transmission of the preferential business for ensureing high priority, to high priority business end of transmission or be high
Also transfer resource is to be allocated after the complete transfer resource of the traffic assignments of priority, is just that the traffic assignments of lower priority transmit money
Source.
Wherein, transfer resource can be the various resources being used for transmission between terminal and base station, including shared channel, control
The resources such as channel.Such as: by taking downlink business as an example, it can be Physical Downlink Shared Channel, the resources such as Physical Downlink Control Channel；
By taking uplink service as an example, it can be Physical Uplink Shared Channel, the resources such as Physical Uplink Control Channel.
Step 303, base station send resource allocation message to terminal, and resource allocation message is used to indicate service priority information
Involved in business transfer resource.
After base station is the good transfer resource of traffic assignments, resource allocation message, the biography distributed of notice terminal are sent to terminal
Defeated resource.Resource allocation message can be transmitted in several ways, for example can be transmitted by Downlink Control Information.
Step 304, base station carry out CBTC industry with terminal according to the transfer resource of business indicated in resource allocation message
Business transmission and/or the transmission of other business.
The transfer resource that base station is indicated according to resource allocation message carries out the transmission of related service with terminal, corresponding
Business datum is sent in downlink transfer resource, data are received in uplink transmission resource.
Communication-based train control system CBTC business scheduling method provided in this embodiment, base station it is determining with terminal it
Between CBTC service priority be higher than other service priority, transfer resource is preferentially distributed to the high CBTC business of priority,
And the transfer resource being assigned to by resource allocation message notice corresponding terminal, it preferentially ensure that the CBTC between base station and terminal
The normal transmission of business has ensured rail traffic safety.
Fig. 4 is that the present invention is based on the processes of another embodiment of the train control system CBTC business scheduling method of communication
Figure.Communication-based train control system CBTC business scheduling method provided in this embodiment can be used in uplink communication.Such as Fig. 4
It is shown, before step 301, method provided in this embodiment further include:
Step 300, base station receive the buffer status report that terminal is sent, and buffer status report instruction terminal needs to upload number
According to logic channel grouping, and corresponding to logic channel grouping data amount information.
In one possible implementation, base station adjusts the transmission of distributed business according to the data amount information of business
Resource.For example, base station can when the received buffer status report instruction terminal in base station has a large number of services data to be sent to base station
To increase the resource for transmitting the business；When base station, received buffer status report instruction terminal will be sent to the business datum of base station
When measuring smaller, base station can reduce the resource for transmitting the business.
It is different to also can indicate that CBTC business is used from other business in resource allocation message in the various embodiments described above
Logic channel.
Fig. 5 is that the present invention is based on the processes of another embodiment of the train control system CBTC business scheduling method of communication
Figure.This embodiment offers terminals to interact the process for completing CBTC traffic scheduling with base station side, which is scheduling to uplink
Example is illustrated, and is specifically included:
Step 501, terminal send instruction message to base station, and the service priority letter of uplink service is carried in instruction message
Breath, service priority information indicate that the priority of CBTC business is higher than the priority of other business；In the present embodiment, CBTC industry
Business and voice service pass through different quality of service classes instruction (QoS Class Identifier, referred to as: QCI) carryings.Tool
Body, CBTC business is carried by CBTC-QCI1, corresponding with logic channel grouping 1；Voice service passes through voice-QCI1
It is carried, it is corresponding with logic channel grouping 2.
When terminal has upstream data to need to be sent to base station, it can be sent to base station and carry corresponding service precedence information
Instruction information, for example, instruction information may include buffer status report (Buffer corresponding with data traffic types
Status Report, referred to as: BSR) so that base station carries out uplink scheduling priority management according to BSR.
In one possible implementation, when the terminal upstream data to be sent belongs to CBTC business datum, terminal
It may include being grouped 1 corresponding BSR1 with logic channel in the instruction information sent to base station, carry out uplink to trigger base station
The priority management of business；When the upstream data that terminal to be sent belongs to Voice traffic data, finger that terminal is sent to base station
Show in information to may include being grouped 2 corresponding BSR2 with logic channel, to trigger the priority pipe that base station carries out uplink service
Reason.The priority of BSR1 is higher than BSR2, to ensure that the priority of CBTC business is higher than the priority of voice service.In BSR
The field values of filling represent the number of data volume to be sent.
The present embodiment provides reflecting between two different logical channel types, logic channel grouping and buffer status report
Relationship is penetrated, it is as shown in Table 1 and Table 2 respectively.Wherein, SRB indicates Signaling Radio Bearer (Signalling Radio Bearer, letter
Claim: SRB), NonGBR expression does not guarantee bit rate (Non-Guaranteed Bit Rate, referred to as: NonGBR), in this reality
Apply expression logical channel type QCI6~QCI9 in example.The priority of BSRO~BSR4 is from high to low.
Table 1
| Logical channel type | Logic channel grouping | Buffer status report |
| QCI5 and SRB1, SRB2 | 0 | BSR0 |
| CBTC-QCI1 | 1 | BSR1 |
| Voice-QCI1 | 2 | BSR2 |
| QCI2~QCI4 | 3 | BSR3 |
| NonGBR and extension QCI (QCI10~QCI254) | 3 | BSR3 |
Table 2
| Logical channel type | Logic channel grouping | Buffer status report |
| QCI5 and SRB1, SRB2 | 0 | BSR0 |
| CBTC-QCI1 | 1 | BSR1 |
| Voice-QCI1 | 2 | BSR2 |
| QCI2~QCI4 | 3 | BSR3 |
| QCI6~QCI9 | 4 | BSR4 |
| It extends QCI (QCI10~QCI254) | 4 | BSR4 |
Step 502, base station are according to the determining service priority information between terminal of the instruction message；
When in the instruction message that the terminal that base station receives is sent including BSR, base station can be according between BSR and business
Mapping relations, determine the precedence information of uplink service.For example, the mapping relations according to shown in above-mentioned table 1 and/or table 2, when
In instruction message include BSR1 when, then base station can determine that terminal has CBTC business to need to upload, when in instruction message include BSR2
When, then base station can determine that terminal has voice service to need to upload.Due to BSR0~BSR4 priority from high to low, so as to
Determine the precedence information of CBTC business and voice service.
Step 503, base station uplink service according to involved in service priority information distribution services precedence information
Transfer resource.
Base station uplink dispatching system will preferentially eat dishes without rice or wine Physical Downlink Shared Channel (Physical Downlink Shared
Channel, referred to as: PDSCH) and Physical Downlink Control Channel (Physical Downlink Control Channel, referred to as:
PDCCH) resource allocation gives priority higher uplink CBTC business, after the completion of uplink CBTC business all scheduling, will just remain
Remaining resource allocation gives priority lower uplink voice traffic.
If also carrying data amount information to be sent in instruction message, for example the field values filled in BSR represent
The number of data volume to be sent.Then base station uplink dispatching system can be incited somebody to action according to the size of the data volume indicated in instruction message
Transfer resource distributes to corresponding business.
Step 504, base station send resource allocation message to terminal, and resource allocation message is used to indicate service priority information
Involved in business transfer resource.
Step 505, terminal are sent on CBTC according to the transfer resource of business indicated in resource allocation message to base station
Industry business and/or other uplink services.
It is scheduling to example above with uplink CBTC traffic scheduling is described in detail, the priority of uplink service is by terminal
It is reported to base station after determining, base station determines service priority by the message that terminal reports and carries out ascending resource distribution.It is right
For descending scheduling, the priority of downlink business is determined by base station.It is corresponding according to downlink business that base station down dispatches system
Descending scheduling priority is that downlink business carries out transfer resource distribution.Descending scheduling priority generally includes two parts: high-order
The base priority of special priority and low level.Wherein, base priority is that business is obtained excellent according to certain policy calculation
First grade, characterization is the scheduling sequence of business under normal conditions；Special priority is in some special cases, if wanting specific
Ground promotes the particular bit when scheduling precedence of certain a kind of business.
In a kind of optional embodiment, CBTC mark is increased by the special priority in descending scheduling priority
Position, if current business is CBTC business, which guarantees that the priority of CBTC business is higher than voice service
Priority.Descending scheduling System Priority schedules high priority business passes through special priority CBTC flag bit set, base station
It will eat dishes without rice or wine PDSCH and PDCCH resource preferentially distributes to CBTC business, the preferential reliability for guaranteeing CBTC business.
Communication-based train control system CBTC business scheduling method provided in this embodiment, is scheduling to example with uplink,
For uplink scheduling, the BSR for carrying instruction service priority information is sent to base station by terminal, indicates the preferential of CBTC business
Grade is higher than the priority of other business such as voice, so that scheduling System Priority gives air interface transmission resource allocation to CBTC business, protects
The normal transmission of CBTC business has been demonstrate,proved, and then has provided guarantee for rail traffic public safety.
Fig. 6 is that the present invention is based on the structural representations of train control system CBTC traffic scheduling device one embodiment of communication
Figure.As shown in fig. 6, communication-based train control system CBTC traffic scheduling device 60 provided in this embodiment includes: transmitting-receiving
Device 601, processor 602 and bus 603.
Transceiver 601, for receiving the resource allocation message of base station transmission, resource allocation message is used to indicate the biography of business
Defeated resource, transfer resource are allocated by base station according to service priority, and the priority of CBTC business is higher than the excellent of other business
First grade.
Processor 602 carries out CBTC with base station for the transfer resource according to business indicated in resource allocation message
Business transmission and/or the transmission of other business.
Bus 603 is for realizing the connection between each component.
The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 1, realization principle and skill
Art effect is similar, and details are not described herein again.
On the basis of above-mentioned apparatus embodiment, communication-based train control system CBTC business provided in this embodiment
Transceiver 601 in dispatching device, be also used to base station send buffer status report, buffer status report instruction terminal need on
Pass the logic channel grouping of data, and the data amount information corresponding to logic channel grouping.
The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 2, realization principle and skill
Art effect is similar, and details are not described herein again.
In one possible implementation, logic channel is divided into 0,1,2,3 four channel packet, and wherein logic is believed
Road grouping 0 includes QCI5, SRB1 and SRB2 business, and logic channel grouping 1 includes CBTC business, and logic channel grouping 2 includes language
The corresponding QCI1 business of sound, logic channel grouping 3 include other all business in addition to above-mentioned business；
Alternatively,
Logic channel is divided into 0,1,2,3, and 4 five channel packets, wherein logic channel grouping 0 includes QCI5, SRB1
With SRB2 business, logic channel grouping 1 includes CBTC business, and logic channel grouping 2 includes the corresponding QCI1 business of voice, logic
Channel packet 3 includes QCI2, QCI3, QCI4 business, and logic channel grouping 4 includes other all business in addition to above-mentioned business.
In one possible implementation, it is different to indicate that CBTC business is used from other business in buffer status report
Logic channel.
Fig. 7 is that the present invention is based on the structures of the train control system CBTC traffic scheduling device of communication another embodiment to show
It is intended to.As shown in fig. 7, communication-based train control system CBTC traffic scheduling device 70 provided in this embodiment includes: place
Manage device 701, transceiver 702 and bus 703.
Processor 701, for the service priority information between determination and terminal, the priority of CBTC business is higher than other
The priority of business is also used to the transmission money of the business according to involved in service priority information distribution services precedence information
Source.
Transceiver 702, for sending resource allocation message to terminal, resource allocation message is used to indicate service priority letter
The transfer resource of business involved in breath.
Processor 701 is also used to the transfer resource according to business indicated in resource allocation message, controls transceiver
701 carry out the transmission of CBTC business and/or the transmission of other business with terminal.
The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 3, realization principle and skill
Art effect is similar, and details are not described herein again.
On the basis of the above embodiments, communication-based train control system CBTC traffic scheduling provided in this embodiment
Transceiver 702 in device is also used to before the determining service priority information between terminal of processor 701, receives terminal
The buffer status report of transmission, buffer status report instruction terminal need to upload the logic channel grouping of data, and correspond to
The data amount information of logic channel grouping.
The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 4, realization principle and skill
Art effect is similar, and details are not described herein again.
In one possible implementation, processor 701 can also be used to be adjusted according to the data amount information of business and divide
The transfer resource for the business matched.
In one possible implementation, it is different from the use of other business that CBTC business is also indicated in resource allocation message
Logic channel.
In several embodiments provided herein, it should be understood that disclosed method and apparatus can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of module, only
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple module or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method can pass through program
Relevant hardware is instructed to complete.Program above-mentioned can be stored in a computer readable storage medium.The program is being held
When row, execution includes the steps that above-mentioned each method；And storage medium above-mentioned includes: that ROM, RAM, magnetic or disk etc. are various
It can store the medium of program code.
Finally, it should be noted that being respectively merely illustrative of the technical solution of the present invention above, rather than its limitations；Although reference
It is aforementioned that respectively invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned
Technical solution documented by each is modified, or equivalent substitution of some or all of the technical features；And these
It modifies or replaces, the range for each technical solution of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (18)
1. a kind of communication-based train control system CBTC business scheduling method characterized by comprising
Terminal receives the resource allocation message that base station is sent, and the resource allocation message is used to indicate the transfer resource of business, institute
It states transfer resource and is allocated by the base station according to service priority, the priority of CBTC business is higher than the preferential of other business
Grade；
The terminal carries out CBTC industry with the base station according to the transfer resource of business indicated in the resource allocation message
Business transmission and/or the transmission of other business.
2. the method according to claim 1, wherein the terminal receive base station send resource allocation message it
Before, further includes:
The terminal sends buffer status report BSR to base station, and the buffer status report indicates that the terminal needs to upload number
According to logic channel grouping, and corresponding to the logic channel grouping data amount information.
3. according to the method described in claim 2, it is characterized in that, the logic channel is divided into 0,1,2,3 four channel
Grouping, wherein logic channel grouping 0 includes QCI5, SRB1 and SRB2 business, and logic channel grouping 1 includes CBTC business, logic
Channel packet 2 includes the corresponding QCI1 business of voice, and logic channel grouping 3 includes other all business in addition to above-mentioned business.
4. according to the method described in claim 2,4 five channels divide it is characterized in that, logic channel is divided into 0,1,2,3
Group, wherein logic channel grouping 0 includes QCI5, SRB1 and SRB2 business, and logic channel grouping 1 includes CBTC business, logic letter
Road grouping 2 includes the corresponding QCI1 business of voice, and logic channel grouping 3 includes QCI2, QCI3, QCI4 business, logic channel point
Group 4 includes other all business in addition to above-mentioned business.
5. according to the described in any item methods of claim 2-4, which is characterized in that in the buffer status report described in instruction
CBTC business uses different logic channels from other described business.
6. a kind of communication-based train control system CBTC business scheduling method characterized by comprising
The determining service priority information between terminal in base station, the priority of CBTC business are higher than the priority of other business；
The base station according to the service priority information distribute the service priority information involved in business transmission
Resource；
The base station sends resource allocation message to the terminal, and the resource allocation message is used to indicate the service priority
The transfer resource of business involved in information；
The base station carries out CBTC industry with the terminal according to the transfer resource of business indicated in the resource allocation message
Business transmission and/or the transmission of other business.
7. according to the method described in claim 6, it is characterized in that, the determining service priority between terminal in the base station it
Before, further includes:
The base station receives the buffer status report that the terminal is sent, and the buffer status report indicates on the terminal needs
Pass the logic channel grouping of data, and the data amount information corresponding to logic channel grouping.
8. the method according to the description of claim 7 is characterized in that the base station is distributed according to data amount information adjustment
Business transfer resource.
9. according to the described in any item methods of claim 6-8, which is characterized in that in the resource allocation message described in instruction
CBTC business uses different logic channels from other described business.
10. a kind of communication-based train control system CBTC traffic scheduling device characterized by comprising
Transceiver, for receiving the resource allocation message of base station transmission, the resource allocation message is used to indicate the transmission of business
Resource, the transfer resource are allocated by the base station according to the service priority, and the priority of CBTC business is higher than it
The priority of his business；
Processor, for the transfer resource according to business indicated in the resource allocation message, control the transceiver with
The base station carries out the transmission of CBTC business and/or the transmission of other business.
11. device according to claim 10, which is characterized in that the transceiver is also used to send caching shape to base station
State report, the buffer status report indicates that the terminal needs to upload the logic channel grouping of data, and corresponds to described
The data amount information of logic channel grouping.
12. device according to claim 11, which is characterized in that the logic channel is divided into 0,1,2,3 four letter
Road grouping, wherein logic channel grouping 0 includes QCI5, SRB1 and SRB2 business, and logic channel grouping 1 includes CBTC business, is patrolled
Collecting channel packet 2 includes the corresponding QCI1 business of voice, and logic channel grouping 3 includes other all industry in addition to above-mentioned business
Business.
13. device according to claim 11, which is characterized in that logic channel is divided into 0,1,2,3,4 five channels
Grouping, wherein logic channel grouping 0 includes QCI5, SRB1 and SRB2 business, and logic channel grouping 1 includes CBTC business, logic
Channel packet 2 includes the corresponding QCI1 business of voice, and logic channel grouping 3 includes QCI2, QCI3, QCI4 business, logic channel
Grouping 4 includes other all business in addition to above-mentioned business.
14. the described in any item devices of 1-13 according to claim 1, which is characterized in that indicate institute in the buffer status report
It states CBTC business and uses different logic channels from other described business.
15. a kind of communication-based train control system CBTC traffic scheduling device characterized by comprising
Processor, for the service priority information between determination and terminal, the priority of CBTC business is higher than other business
Priority；
The processor is also used to the industry according to involved in the service priority information distribution service priority information
The transfer resource of business；
Transceiver, for sending resource allocation message to the terminal, it is excellent that the resource allocation message is used to indicate the business
The transfer resource of business involved in first grade information；
The processor is also used to control the receipts according to the transfer resource of business indicated in the resource allocation message
It sends out device and the terminal carries out the transmission of CBTC business and/or the transmission of other business.
16. device according to claim 15, which is characterized in that the transceiver be also used to the processor determine with
Before service priority information between the terminal, the buffer status report that the terminal is sent, the buffer status are received
Report indicates that the terminal needs to upload the logic channel grouping of data, and the data volume corresponding to logic channel grouping
Information.
17. device according to claim 16, which is characterized in that the processor is also used to according to the data amount information
Adjust the transfer resource of distributed business.
18. the described in any item devices of 5-17 according to claim 1, which is characterized in that indicate institute in the resource allocation message
It states CBTC business and uses different logic channels from other described business.
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| CN109922525B (en) | 2022-08-23 |
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