CN115720131A - Service dynamic scheduling method, device, base station and storage medium - Google Patents
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Abstract
The present disclosure provides a method, an apparatus, a base station and a storage medium for dynamically scheduling a service, wherein the method includes: the base station configures an authorization-free retransmission resource corresponding to the HARQ process for the first service; and when the base station determines that the uplink data of the first service is successfully received, scheduling the second service to use the unoccupied authorization-free retransmission resource. The method, the device, the base station and the storage medium solve the multiplexing problem of the first-class uplink authorization-free uRLLC transmission and eMB transmission on network resources, meet the burstiness of the uRLLC service, dynamically schedule the eMB service to the authorization-free resources without the need of transmitting the uRLLC service, and effectively improve the resource utilization rate of a communication system.
Description
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a method, an apparatus, a base station, and a storage medium for dynamically scheduling a service.
Background
In the 5G (fifth generation mobile communication technology) communication technology standard, three major types of application scenarios are included: enhanced Mobile Broadband (eMBB), low-latency and high-reliability (UlLRC), and Low-power and large-connectivity (mMTC) scenarios. In a low-delay and high-reliability scene, higher requirements on delay and reliability are provided by businesses such as Internet of vehicles, industrial control, telemedicine and the like. The urrllc service has high requirements on reliability and delay, and because the urrllc service has burstiness, in order to guarantee the bursty urrllc service and reduce the delay, the R16 standard supports configuration and activation of multiple sets of uplink unlicensed transmission configurations on each bandwidth part (BWP). Because the uplink authorization-free transmission configuration of the urrllc service solves the problem of transmission resource configuration of a burst urrllc service, a part of configured resources may be vacant when no urrllc service exists, or the urrllc service does not need to be retransmitted after successful transmission, and the configured resources of the authorization-free retransmission part are wasted.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a method, an apparatus, a base station and a storage medium for dynamically scheduling services.
According to a first aspect of the present disclosure, a method for dynamically scheduling a service is provided, including: the base station configures an authorization-free retransmission resource corresponding to the HARQ process for the first service; and when the base station determines that the uplink data of the first service is successfully received, scheduling a second service to use the unoccupied authorization-free retransmission resource.
Optionally, the base station acquires process information corresponding to the HARQ process; and the base station determines whether the uplink data of the first service is successfully received or not based on the process information, and determines whether to schedule the second service to use the unoccupied authorization-free retransmission resources or not.
Optionally, the process information includes: and the HARQ process selects the authorization-free transmission configuration information, the retransmission times and the transmission result of the first service.
Optionally, the base station monitors each HARQ process in real time, and acquires process information corresponding to each HARQ process.
Optionally, when the base station determines that the uplink data of the first service is successfully received, scheduling a second service to use the unoccupied unlicensed retransmission resource includes: and when the base station determines that the uplink data of the first service is successfully received, if the retransmission times of the uplink data of the first service is determined to not reach a preset value, the base station schedules the second service to the unoccupied authorization-free retransmission resource.
Optionally, the scheduling the second traffic to the unoccupied unlicensed retransmission resource includes: and the base station associates the process number of the HARQ process with DCI (Downlink control information) for scheduling second service so as to combine the second service into the HARQ process.
Optionally, the base station issues DCI-HARQ-X to schedule the second service to the unoccupied unlicensed retransmission resource; and implicitly indicating that HARQ-ACK feedback of an uplink process of the first service is ACK indication by scheduling DCI of the second service, so as to stop repeated transmission of the first service.
Optionally, the first service includes: uRLLC service; the second service comprises: the eMBB service.
According to a second aspect of the present disclosure, there is provided a service dynamic scheduling apparatus, configured in a base station, including: the resource allocation module is used for allocating the authorization-free retransmission resource corresponding to the HARQ process for the first service; and the resource scheduling module is used for scheduling a second service to use the unoccupied authorization-free retransmission resource when the uplink data of the first service is determined to be successfully received.
Optionally, the resource scheduling module includes: a monitoring unit, configured to acquire process information corresponding to the HARQ process; and the judging unit is used for determining whether the uplink data of the first service is successfully received or not based on the process information and determining whether the second service is scheduled to use the unoccupied authorization-free retransmission resource or not.
Optionally, the process information includes: and the HARQ process selects the authorization-free transmission configuration information, the retransmission times and the transmission result of the first service.
Optionally, the monitoring unit is configured to monitor each HARQ process in real time, and acquire process information corresponding to each HARQ process.
Optionally, the resource scheduling module includes: and the scheduling unit is used for scheduling the second service to the unoccupied unlicensed retransmission resource if the retransmission times of the uplink data of the first service are determined to not reach a preset value when the uplink data of the first service are determined to be successfully received.
Optionally, the scheduling unit is configured to associate the process number of the HARQ process with DCI for scheduling a second service, so as to incorporate the second service into the HARQ process.
Optionally, the scheduling unit is configured to issue DCI-HARQ-X, so as to schedule the second service to the unoccupied unlicensed retransmission resource; and implicitly indicating that HARQ-ACK feedback of an uplink process of the first service is ACK indication by scheduling DCI of the second service so as to stop repeated transmission of the first service.
Optionally, the first service includes: uRLLC service; the second service comprises: the eMBB service.
According to a third aspect of the present disclosure, there is provided a base station, wherein: the method comprises the following steps: the service dynamic scheduling device is described above.
According to a fourth aspect of the present disclosure, there is provided a service dynamic scheduling apparatus, including: a memory; and a processor coupled to the memory, the processor configured to perform the method as described above based on instructions stored in the memory.
According to a fifth aspect of the present disclosure, there is provided a computer readable storage medium storing computer instructions for execution by a processor to perform the method as described above.
According to the service dynamic scheduling method, the device, the base station and the storage medium, through multiplexing the burst uRLLC transmission configured with authorization and the eMBB service dynamically scheduled, the multiplexing problem of the first type of uplink authorization-free uRLLC transmission and eMBB transmission on network resources is solved, the burstiness of the uRLLC service is met, the eMBB service can be dynamically scheduled to the authorization-free resources without transmitting the uRLLC service, the resource waste is prevented, and the resource utilization rate of a communication system can be effectively improved.
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In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings may be obtained according to the drawings without inventive labor.
Fig. 1 is a flowchart illustrating an embodiment of a method for dynamically scheduling services according to the present disclosure;
fig. 2 is a schematic diagram illustrating a configuration and activation of multiple sets of uplink unlicensed transmission configurations;
fig. 3 is a schematic scheduling diagram of an unlicensed retransmission resource according to another embodiment of the dynamic service scheduling method of the present disclosure;
fig. 4 is a schematic diagram illustrating multiplexing of uplink grant-free transmission configuration resources according to another embodiment of the dynamic service scheduling method of the present disclosure;
fig. 5 is a schematic block diagram of an embodiment of a dynamic service scheduling apparatus according to the present disclosure;
fig. 6 is a schematic diagram of a resource scheduling module in an embodiment of a dynamic traffic scheduling apparatus according to the present disclosure;
fig. 7 is a block diagram of another embodiment of a dynamic traffic scheduling apparatus according to the present disclosure.
Detailed Description
The present disclosure now will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the disclosure are shown. The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Fig. 1 is a schematic flow chart of an embodiment of a dynamic service scheduling method according to the present disclosure, as shown in fig. 1:
In one embodiment, the first service may be a uRLLC service or the like, and the second service may be an eMBB service or the like. The following description will be made by taking the urrllc service and the eMBB service as examples.
In order to guarantee the burst uRLLC service and reduce the time delay, the R16 standard supports the configuration and activation of a plurality of sets of uplink authorization-free transmission configurations on each bandwidth part. The uplink grant-free means that the gNB activates one uplink grant to the UE, and the UE always uses the resource specified by the first uplink grant to perform uplink transmission without receiving deactivation.
The uplink unlicensed transmission configuration is divided into two types, where the first type of uplink unlicensed configuration is configured by RRC through higher layer signaling (IE ConfiguredGrantConfig). The IE ConfiguredGrantConfig includes all parameters required for uplink transmission, such as period (periodicity), HARQ process number (nrofHARQ-Processes), power control, repetition number (repK), and repetition redundancy version (repK-RV). The configuration scene of the authorization-free retransmission resource in the application of the invention is a first type of uplink authorization-free transmission configuration scene.
As shown in fig. 2, multiple sets of uplink grant-free transmission configurations are configured and activated on each bandwidth portion, the number of repetition times repK is set to 4, there are four sets of configurations in total, each set of configurations is staggered by one transmission cycle, and the terminal can select the nearest transmission configuration for transmission. For example, the terminal may select a third set of configurations for transmission when the first transmission opportunity of the second set of configurations arrives.
In one embodiment, in order to improve resource utilization, the base station should be allowed to schedule transmission of the eMBB terminal to idle resources, and when determining that uplink data of the urrllc service is successfully received, the base station may schedule the eMBB service to use unoccupied grant-free retransmission resources, which not only satisfies burstiness of the urrllc service, but also dynamically schedules the eMBB service.
In one embodiment, a base station acquires process information corresponding to a HARQ process. For example, the base station monitors each HARQ process in real time, and acquires process information corresponding to each HARQ process. And the base station determines whether the uplink data of the first service is successfully received or not based on the process information, and determines whether to schedule the second service to use unoccupied authorization-free retransmission resources or not. The process information includes the authorization-free transmission configuration information selected by the HARQ process, the retransmission times, the transmission result of the first service, and the like.
When the base station determines that the uplink data of the first service is successfully received, if the retransmission times of the uplink data of the first service is determined to not reach a preset value, the base station schedules the second service to unoccupied authorization-free retransmission resources, wherein the preset value can be 3, 4 and the like. And the base station associates the process number of the HARQ process with the DCI for scheduling the second service so as to combine the second service into the HARQ process.
For example, the base station issues DCI-HARQ-X to schedule the second service to the unoccupied unlicensed retransmission resource; and implicitly indicating that HARQ-ACK feedback of an uplink process of the first service is ACK indication by scheduling DCI of the second service so as to stop repeated transmission of the first service.
In one embodiment, in order to ensure that the bursty uplink uRLLC service data can be transmitted in time, the reserved resources of each HARQ process are configured using the first type of uplink grant-free transmission. If the uplink urrllc service data is successfully transmitted, the configured resources of the unlicensed retransmission part can be allocated to the eMBB service, and the two services are merged into one HARQ process (the new data and the original data inserted for transmission correspond to the same HARQ process number). The base station can monitor all processes of the first-class uplink authorization-free transmission in the network at the same time, and if the uRLLC service is successfully received for the number of times of unsatisfied repetition, the eMBB service can be scheduled to unoccupied authorization-free retransmission resources.
Fig. 3 is a schematic scheduling diagram of an unlicensed retransmission resource according to another embodiment of the dynamic service scheduling method disclosed in the present disclosure, as shown in fig. 3:
step 301, the base station monitors the HARQ _ x process, and the information of the HARQ _ x process includes: selected configuration, number of repetitions (repK), whether it has been successfully received, etc.
Step 302, if the retransmission is successfully received after two times, the base station issues DCI-HARQ-X, and schedules eMBB service to the subsequent authorization-free retransmission resource. The DCI implicitly indicates that the HARQ-ACK feedback of the uplink process is an ACK indication, namely, the repeated transmission of the uRLLC service is stopped.
And step 303, the eMBB service is scheduled to the original uRLLC uplink authorization-free resource.
In step 304, the base station continues to monitor HARQ _ x +1 process conditions.
The service dynamic scheduling method in the embodiment can be applied to the situation that both the bursty urrllc service and the eMBB service exist in the wireless network, and the problem of multiplexing the first uplink grant-free urrllc transmission and the first uplink grant-free eMBB transmission on network resources is solved by multiplexing the bursty urrllc transmission configured with the grant and the dynamically scheduled eMBB service, so that the burstiness of the urrllc service is met, the eMBB service can be dynamically scheduled to the grant-free resources without the need of transmitting the urrllc service, the resource waste is prevented, and the resource utilization rate of the communication system can be effectively improved.
In one embodiment, as shown in fig. 4, upon arrival of data, the uRLLC terminal selects the third set of configurations. The base station monitors the configuration selected by each uRLLC uplink authorization-free service in real time, and extracts relevant parameters, wherein the relevant parameters comprise: the position of the transmission opportunity, the retransmission times, the period and the like are used for positioning the specific time-frequency domain position of the unlicensed transmission, and the specific time-frequency domain position is embodied in DCI-HARQ-X to inform the eMBB terminal to be scheduled.
The base station associates the HARQ process number of the first class of uplink unlicensed transmission of the uRLLC with the DCI for scheduling the eMBB service, and accurately indicates the HARQ process into which the eMBB service should be inserted; scheduling DCI of eMBB service, implicitly indicating HARQ-ACK feedback of uplink process of uRLLC as ACK indication, namely stopping repeat transmission of uRLLC service.
For example, if the retransmission times are not full and the uplink data has been successfully received, the extracted information will be embodied in DCI to inform the eMBB terminal to be scheduled, and determine the specific video domain position; this DCI simultaneously implicitly indicates that the corresponding urrllc terminal can end the retransmission. The traffic of the eMB terminal is merged into the same HARQ process and is scheduled to the unoccupied uRLLC unlicensed transmission resources.
In one embodiment, as shown in fig. 5, the present disclosure provides a dynamic service scheduling apparatus 50, which is disposed in a base station, and the dynamic service scheduling apparatus 50 includes a resource configuration module 51 and a resource scheduling module 52. The resource configuration module 51 configures an unlicensed retransmission resource corresponding to the HARQ process for the first service. The resource scheduling module 52 schedules the second service to use the unoccupied unlicensed retransmission resource when determining that the uplink data of the first service is successfully received. The first service includes a urrllc service and the like, and the second service includes an eMBB service and the like.
In one embodiment, as shown in fig. 6, the resource scheduling module 52 includes a monitoring unit 521, a decision unit 522 and a scheduling unit 523. The monitoring unit 521 acquires process information corresponding to the HARQ process. The decision unit 522 determines whether the uplink data of the first service is successfully received based on the process information and whether to schedule the second service to use the unoccupied unlicensed retransmission resource. The process information includes the authorization-free transmission configuration information selected by the HARQ process, the retransmission times, the transmission result of the first service, and the like.
In one embodiment, the monitoring unit 521 monitors each HARQ process in real time, and acquires process information corresponding to each HARQ process. When determining that the uplink data of the first service is successfully received, the scheduling unit 523 schedules the second service to the unoccupied unlicensed retransmission resource if it is determined that the retransmission times of the uplink data of the first service does not reach the preset value. The scheduling unit 523 associates the process number of the HARQ process with DCI for scheduling the second service, so as to incorporate the second service into the HARQ process.
The scheduling unit 523 issues DCI-HARQ-X to schedule the second service to an unoccupied grant-free retransmission resource; and the HARQ-ACK feedback of the uplink process of the first service is implicitly indicated as an ACK indication by scheduling the DCI of the second service, so that the repeated transmission of the first service is stopped.
In one embodiment, the present disclosure provides a base station including the apparatus for dynamically scheduling traffic in any embodiment.
Fig. 7 is a block diagram of another embodiment of a dynamic traffic scheduling apparatus according to the present disclosure. As shown in fig. 7, the apparatus may include a memory 71, a processor 72, a communication interface 73, and a bus 74. The memory 71 is used for storing instructions, the processor 72 is coupled to the memory 71, and the processor 72 is configured to implement the above-mentioned service dynamic scheduling method based on the instructions stored in the memory 71.
The memory 71 may be a high-speed RAM memory, a non-volatile memory (non-volatile memory), or the like, and the memory 71 may be a memory array. The storage 71 may also be partitioned and the blocks may be combined into virtual volumes according to certain rules. Processor 72 may be a central processing unit CPU, or an Application Specific Integrated Circuit ASIC (Application Specific Integrated Circuit), or one or more Integrated circuits configured to implement the traffic dynamic scheduling method of the present disclosure.
In one embodiment, the present disclosure provides a computer-readable storage medium storing computer instructions that, when executed by a processor, implement a method for dynamic scheduling of traffic as in any of the above embodiments.
The service dynamic scheduling method, the device, the base station and the storage medium in the embodiments provide a technical scheme for dynamically scheduling the urrllc service and the eMBB service under the first-class uplink grant-free transmission of the urrllc, and make up for the blank in the prior art; the method has the advantages that the problem of multiplexing the first uplink authorization-free uRLLC transmission and the eMBB transmission on network resources is solved by multiplexing the burst uRLLC transmission configured with authorization and the eMBB service dynamically scheduled, so that the burstiness of the uRLLC service is met, the eMBB service can be dynamically scheduled to the authorization-free resources without the uRLLC service, the resource waste is prevented, and the resource utilization rate of a communication system can be effectively improved.
The method and system of the present disclosure may be implemented in a number of ways. For example, the methods and systems of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above unless specifically stated otherwise. Further, in some embodiments, the present disclosure may also be embodied as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.
The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (19)
1. A method for dynamically scheduling services comprises the following steps:
the base station configures an authorization-free retransmission resource corresponding to the HARQ process for the first service;
and when the base station determines that the uplink data of the first service is successfully received, scheduling a second service to use the unoccupied authorization-free retransmission resource.
2. The method of claim 1, further comprising:
the base station acquires process information corresponding to the HARQ process;
and the base station determines whether the uplink data of the first service is successfully received or not based on the process information, and determines whether to schedule the second service to use the unoccupied authorization-free retransmission resources or not.
3. The method of claim 2, wherein,
the process information includes: and the HARQ process selects the authorization-free transmission configuration information, the retransmission times and the transmission result of the first service.
4. The method of claim 2, wherein,
and the base station monitors each HARQ process in real time and acquires process information corresponding to each HARQ process.
5. The method of claim 1, wherein the base station, when determining that the uplink data of the first service is successfully received, scheduling a second service to use the unoccupied grant-free retransmission resource comprises:
and when the base station determines that the uplink data of the first service is successfully received, if the retransmission times of the uplink data of the first service is determined to not reach a preset value, the base station schedules the second service to the unoccupied authorization-free retransmission resource.
6. The method of claim 5, the scheduling the second traffic to the unlicensed retransmission resources that are unoccupied comprising:
and the base station associates the process number of the HARQ process with DCI (Downlink control information) for scheduling second service so as to combine the second service into the HARQ process.
7. The method of claim 6, further comprising:
the base station issues DCI-HARQ-X to schedule the second service to the unoccupied authorization-free retransmission resource; and implicitly indicating that HARQ-ACK feedback of an uplink process of the first service is ACK indication by scheduling DCI of the second service so as to stop repeated transmission of the first service.
8. The method of any one of claims 1 to 7,
the first service comprises: a uRLLC service; the second service comprises: the eMBB service.
9. A service dynamic scheduling device is arranged in a base station and comprises:
the resource allocation module is used for allocating the authorization-free retransmission resource corresponding to the HARQ process for the first service;
and the resource scheduling module is used for scheduling a second service to use the unoccupied authorization-free retransmission resource when the uplink data of the first service is determined to be successfully received.
10. The apparatus of claim 9, wherein,
the resource scheduling module comprises:
a monitoring unit, configured to obtain process information corresponding to the HARQ process;
and the judging unit is used for determining whether the uplink data of the first service is successfully received or not based on the process information and determining whether the second service is scheduled to use the unoccupied authorization-free retransmission resources or not.
11. The apparatus of claim 10, wherein,
the process information includes: and the HARQ process selects the authorization-free transmission configuration information, the retransmission times and the transmission result of the first service.
12. The apparatus of claim 10, wherein,
and the monitoring unit is used for monitoring each HARQ process in real time and acquiring process information corresponding to each HARQ process.
13. The apparatus of claim 9, wherein,
the resource scheduling module comprises:
and the scheduling unit is used for scheduling the second service to the unoccupied unlicensed retransmission resource if the retransmission times of the uplink data of the first service are determined to not reach a preset value when the uplink data of the first service are determined to be successfully received.
14. The apparatus of claim 13, wherein,
the scheduling unit is configured to associate the process number of the HARQ process with DCI for scheduling a second service, so as to incorporate the second service into the HARQ process.
15. The apparatus of claim 14, further comprising:
the scheduling unit is configured to issue DCI-HARQ-X, so as to schedule the second service to the unoccupied unlicensed retransmission resource; and implicitly indicating that HARQ-ACK feedback of an uplink process of the first service is ACK indication by scheduling DCI of the second service so as to stop repeated transmission of the first service.
16. The apparatus of any one of claims 9 to 15,
the first service comprises: uRLLC service; the second service comprises: the eMBB service.
17. A base station, wherein:
the method comprises the following steps: a dynamic scheduling apparatus for traffic according to any of claims 9 to 16.
18. A dynamic service scheduling device comprises:
a memory; and a processor coupled to the memory, the processor configured to perform the method of any of claims 1-8 based on instructions stored in the memory.
19. A computer-readable storage medium having stored thereon computer instructions for execution by a processor to perform the method of any one of claims 8 to 14.
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| CN116261226A (en) * | 2023-05-15 | 2023-06-13 | 上海星思半导体有限责任公司 | Uplink channel resource allocation and determination method, network side equipment and terminal equipment |
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| CN116261226A (en) * | 2023-05-15 | 2023-06-13 | 上海星思半导体有限责任公司 | Uplink channel resource allocation and determination method, network side equipment and terminal equipment |
| CN116261226B (en) * | 2023-05-15 | 2023-09-29 | 上海星思半导体有限责任公司 | Uplink channel resource allocation and determination method, network side equipment and terminal equipment |
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