CN111741534A - Resource scheduling method and device - Google Patents
Resource scheduling method and device Download PDFInfo
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- CN111741534A CN111741534A CN202010538275.6A CN202010538275A CN111741534A CN 111741534 A CN111741534 A CN 111741534A CN 202010538275 A CN202010538275 A CN 202010538275A CN 111741534 A CN111741534 A CN 111741534A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
Abstract
The application provides a resource scheduling method, relates to the technical field of communication, and is used for solving the problem of reducing scheduling resource waste under a 5G EN-DC framework under the condition of not increasing signaling overhead between base stations. The method comprises the following steps: the access network equipment receives a first Buffer Status Report (BSR) from the terminal equipment. And the access network equipment determines a first uplink resource allocated to the terminal equipment in a first period according to the first BSR and the first proportion. The access network equipment determines a first duration, an empty packet rate and a full packet rate. And the access network equipment determines a second proportion according to the first duration, the full packet rate and the empty packet rate. The application is applied to resource scheduling.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a resource scheduling method and apparatus.
Background
Under a 5th-Generation Universal Radio Access-New Radio Dual Connectivity (5G EN-DC) architecture, when the amount of data to be transmitted of a terminal device is greater than an uplink data splitting threshold (ul-data splitting threshold), the terminal device reports the same Buffer Status Report (BSR) to a 4G (4th-Generation Mobile Communication Technology) base station and a 5G base station, respectively. Accordingly, both the 4G base station and the 5G base station may independently schedule corresponding transmission resources for the terminal device, which may cause the number of resources scheduled by the two base stations for the terminal device to exceed the resource demand of the data to be sent of the terminal device, thereby causing resource waste.
To reduce resource waste, the 4G base station and the 5G base station may negotiate resources that are each scheduled for the terminal device. However, the above negotiation process requires frequent signaling interaction, resulting in a large amount of signaling overhead. And, when a base station has scheduled a portion of the resources for the terminal device, the amount of data to be transmitted for the terminal device has actually been updated. At this time, when the number of the terminal devices is large, another base station may not timely obtain the update information of the data volume to be sent, so that resources are still scheduled for the terminal device according to the BSR reported by the terminal device, and a resource waste phenomenon still exists.
Disclosure of Invention
The invention provides a resource scheduling method and a resource scheduling device, which are used for solving the problem of reducing scheduling resource waste under the condition of not increasing signaling overhead between base stations under a 5G EN-DC framework.
In order to achieve the purpose, the following scheme is adopted in the application:
in a first aspect, the present application provides a resource scheduling method, including: the access network device receives a first Buffer Status Report (BSR) from the terminal device, where the first BSR is used to indicate the amount of data transmitted by the terminal device in a first period. And the access network equipment allocates a first uplink resource for the terminal equipment according to the first BSR and the first proportion. The access network equipment determines a first duration, an empty packet rate and a full packet rate. The first duration is time consumed from receiving the first BSR to allocating the first uplink resource for the terminal device, the full packet rate is used to indicate a ratio of a number of times that the uplink data of the terminal device occupies the first uplink resource in the first period to a total number of times that the terminal device transmits the uplink data on the first uplink resource in the first period, and the empty packet rate is used to indicate a ratio of a number of times that the uplink data of the terminal device does not occupy the first uplink resource in the first period to a total number of times that the terminal device transmits the uplink data on the first uplink resource in the first period. And the access network equipment determines a second proportion according to the first duration, the full packet rate and the empty packet rate.
Based on the technical solution described in the first aspect, for any access network device, in one scheduling period, time, a full packet rate, and an empty packet rate consumed from receiving a BSR to scheduling a resource for a terminal device may be obtained, and a resource allocation ratio allocated to the terminal device in the next scheduling period may be adjusted accordingly. Therefore, the problem that the quantity of resources distributed to the terminal equipment by different access network equipment exceeds the resource requirement can be solved, signaling interaction is not needed between the access network equipment, any access network equipment can only distribute the resources to the terminal equipment according to the transmission condition and the resource distribution proportion of the access network equipment, the resource waste phenomenon can be avoided under the condition that the signaling overhead between the access network equipment is not increased, and the resource scheduling efficiency is improved.
In one possible design, when the first duration is greater than or equal to the first threshold and the full packet rate is greater than or equal to the second threshold, the second ratio may be determined according to the following formula: x is the number of2＝max{x1-x3,0}. Wherein x is1Is a first ratio, x2Is a second ratio, x3Is the first adjustment amount.
In another possible design, when the first duration is less than or equal to the third threshold and the null packet rate is less than or equal to the fourth threshold, the second ratio may be determined according to the following formula: x is the number of2＝min{x1+x4,1}. Wherein x is1Is a first ratio, x2Is a second ratio, x4Is the second adjustment amount.
Optionally, the resource scheduling method according to the first aspect may further include: and the access network equipment receives a second BSR from the terminal equipment in a second period, and allocates a second uplink resource to the terminal equipment according to the second BSR and a second proportion.
In a second aspect, the present application provides an access network device, a receiving module and a processing module. A receiving module, configured to receive, by a device, a first buffer status report BSR from a terminal device, where the first BSR is used to indicate a data amount transmitted by the terminal device in a first period. And the processing module is used for allocating a first uplink resource to the terminal equipment according to the first BSR and the first proportion. The processing module is also used for determining a first time length, an empty packet rate and a full packet rate; the first duration is time consumed from receiving the first BSR to allocating the first uplink resource for the terminal device, the full packet rate is used to indicate a ratio of a number of times that the uplink data of the terminal device occupies the first uplink resource in the first period to a total number of times that the terminal device transmits the uplink data on the first uplink resource in the first period, and the empty packet rate is used to indicate a ratio of a number of times that the uplink data of the terminal device does not occupy the first uplink resource in the first period to a total number of times that the terminal device transmits the uplink data on the first uplink resource in the first period. And the processing module is also used for determining a second proportion according to the first duration, the full packet rate and the empty packet rate.
In one possible design, when the first duration is greater than or equal to the first threshold and the full packet rate is greater than or equal to the second threshold, the second ratio may be determined by the access network device according to the following formula: x is the number of2＝max{x1-x3,0}. Wherein x is1Is a first ratio, x2Is a second ratio, x3Is the first adjustment amount.
In another possible design, when the first time length is less than or equal to the third threshold and the null packet rate is less than or equal to the fourth threshold, the second ratio may be determined by the access network device according to the following formula: x is the number of2＝min{x1+x4,1}. Wherein x is1Is a first ratio, x2Is a second ratio, x4Is the second adjustment amount.
Optionally, the access network device according to the second aspect may further include a sending module. The sending module is used for the access network device to send signaling and/or data to other devices, such as the terminal device or another access network device. Further, the receiving module and the sending module may also be integrated into one module, such as a transceiver module.
Optionally, the access network device according to the second aspect may further include a storage module, which stores programs or instructions. When the processing module executes the program or the instructions, the access network device may be enabled to execute the resource scheduling method described in the above method embodiments.
It should be noted that the access network device in the second aspect may be a 4G base station, a 5G base station, or a chip (system) or other component or assembly that may be disposed in a terminal device or a network device, which is not limited in this application.
In addition, for the technical effect of the access network device according to the second aspect, reference may be made to the technical effect of the resource scheduling method according to the first aspect, and details are not repeated here.
In a third aspect, the present application provides an access network device, including: a processor and a communication interface; the communication interface is coupled to a processor for executing a computer program or instructions for implementing the resource scheduling method as described in the first aspect and any possible implementation form of the first aspect.
In a fourth aspect, the present application provides a communication system. The communication system includes: a terminal device, and at least two access network devices.
In a fifth aspect, the present application provides a computer-readable storage medium, which stores instructions that, when executed on a computer, cause the computer to perform the resource scheduling method described in the first aspect and any possible implementation manner of the first aspect.
In a sixth aspect, the present application provides a computer program product containing instructions that, when run on a computer, cause the computer to perform the method for scheduling resources described in the first aspect and any one of the possible implementations of the first aspect.
In a seventh aspect, the present application provides a chip, where the chip includes a processor and a communication interface, and the communication interface is coupled to the processor, and the processor is configured to execute a computer program or instructions to implement the resource scheduling method as described in the first aspect and any possible implementation manner of the first aspect.
Drawings
Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application;
fig. 2 is a schematic diagram of an EN-DC protocol architecture provided in an embodiment of the present application;
fig. 3 is a flowchart illustrating a resource scheduling method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an access network device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of another access network device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship. For example, A/B may be understood as A or B.
The terms "first" and "second" in the description and claims of the present application are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first edge service node and the second edge service node are used for distinguishing different edge service nodes, and are not used for describing the characteristic sequence of the edge service nodes.
Furthermore, the terms "including" and "having," and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to the listed steps or modules but may alternatively include other steps or modules not listed or inherent to such process, method, article, or apparatus.
In addition, in the embodiments of the present application, words such as "exemplarily" or "for example" are used for indicating as examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "e.g.," is intended to present concepts in a concrete fashion.
Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application. As shown in fig. 1, the communication system includes: access network equipment A, access network equipment B and terminal equipment. The terminal device can perform data transmission through the access network device a and/or the access network device B.
It should be noted that the access network device a and the access network device B are different types of access network devices. For example, access network device a may be a 4G base station and access network device B may be a 5G base station. The 4G base station may be an evolved Node B (eNB) in a Long Term Evolution (LTE) system, and the 5G base station may be a G Node B (gNB) in a New Radio (NR) system.
In order to facilitate understanding of the technical solutions of the present application, some technical terms are described below.
1. EN-DC architecture
Under an Evolved-Universal Radio Access-New Radio dual Connectivity (EN-DC) architecture, the 4G Radio Access network device and the 5G Radio Access network device can provide a service for one UE.
Fig. 2 is a schematic diagram of an EN-DC protocol architecture provided in an embodiment of the present application. As shown in fig. 2, in a scenario using the EN-DC architecture, there are three ways to perform data transmission:
in the first mode, data transmission is performed by using Master Cell Group (MCG) bearer.
As shown in fig. 2, a 4G base station serving as a Master node uses a plurality of different frequency points to form a network of multi-layer cells, and all the cells can be used as control plane anchors, so that the combination of the 4G cells is referred to as a Master Cell Group (MCG), and a radio data bearer established on the MCG is referred to as an MCG bearer. The MCG bearer only uses a Protocol stack and resources of the 4G side, that is, a Packet Data Convergence Protocol (PDCP) layer entity, an E-UTRA RLC Radio Link Control Protocol (RLC) layer entity, and an E-UTRA Medium Access Control (MAC) layer entity.
And the second mode is to carry out data transmission by using a Secondary Cell Group (SCG) bearer.
As shown in fig. 2, multiple 5G cells form an SCG, and a radio data bearer established over the SCG is referred to as an SCG bearer. The SCG bearer only uses the protocol stack and resources of the 5G side, i.e., the NR PD CP layer entity, the NR RLC layer entity, and the NR MAC layer entity.
And the third mode is that data transmission is carried out by utilizing Split Bearer (Split Bearer).
As shown in fig. 2, the 5G base station includes a PDCP layer entity, an RLC layer entity, and a MAC layer entity similar to the 4G base station.
In an uplink scene, two parts of data sent from the terminal equipment are processed by the MAC layer entity and the RLC layer entity of the 4G base station and the 5G base station respectively and then are delivered to the PDCP layer entities respectively, so that the data uploading is completed. That is, offloading is taking advantage of both the protocol stack and resources on the 4G side and the 5G side.
Generally, the terminal device reports a Buffer Status Report (BSR) to the base station to inform the base station of the size of the data amount buffered by the terminal device in the PDCP layer.
In an EN-DC scene, two schedulers simultaneously provide a shunting bearing service for terminal equipment, wherein one scheduler is an MCG MAC scheduler of a 4G base station evolution type node, and the other scheduler is an SCG MAC scheduler of a 5G base station G node. When the terminal device reports the BSR to the EN-DC base station, the protocol 36.323 specifies that, if the data volume of the split bearer buffer is higher than the uplink data split threshold (the uplink data split threshold may be configured to the base station by the network side), the terminal device reports the same BSR to the two schedulers, and if the data volume of the split bearer buffer is lower than the uplink data split threshold, the terminal device reports the BSR to one of the schedulers and reports 0 to the other scheduler.
2. Buffer status reporting
A Buffer Status Report (BSR) is used to inform the access network device of the amount of data to be sent of the terminal device on the PDCP layer at present, so as to schedule appropriate air interface resources to the terminal device to send uplink data, and therefore, the accuracy and real-time performance of the BSR are very important, otherwise, the resource scheduling of the access network device is affected, and shortage or waste of air interface resources allocated to the terminal device is caused.
3. Access network device
And the access network equipment is used for connecting with the terminal equipment so as to enable the terminal equipment to be accessed into a wireless network. In the present application, the access network device may include a 4G base station and a 5G base station. And the 4G base station and the 5G base station independently calculate and determine the allocation proportion of the BSR of the shunting load in each base station.
In the prior art, if the data volume to be sent by the terminal device is higher than a threshold, such as an uplink data offloading threshold, the data offloaded may be transmitted uplink (or simultaneously) on any air interface resource of the 4G side and the 5G side. This means that if the split bearer transmits a portion of the data using the resources allocated by one of the access network devices, the BSR information used by the other access network device is outdated. For example, the BSR indicates 5000 bits (bit) of data to be transmitted, and the BSR is reported to the 4G base station and the 5G base station at the same time, at this time, if the 5G base station schedules 1000 bits first, the 4G base station still allocates resources according to the 5000 bit BSR, which causes resource waste.
In order to avoid the above situation, the existing solution is to exchange update information of the cache data amount between the evolved node of the 4G base station and the G node of the 5G base station. However, when the number of terminal devices in the network is large, the real-time performance of exchanging information of each UE between two base stations is difficult to guarantee, and signaling overhead between each base station is very large, which may cause a problem of scheduling resource waste.
In order to solve the above problems, the BSR allocation proportion of the offload bearer between different types of access network devices is determined by considering factors such as the waiting processing time of the data packets of the access network devices, the processing duration of the data packets, and the scheduling condition of the data packets, so as to avoid frequent information interaction between the 4G base station and the 5G base station, and avoid resource waste.
Exemplarily, fig. 3 is a schematic flowchart of a resource scheduling method provided in an embodiment of the present application. As shown in fig. 3, the method comprises the steps of:
s301, the access network equipment receives the first BSR from the terminal equipment.
The first BSR is configured to indicate an amount of data to be transmitted by the terminal device in a first period. It can be understood that the access network device learns the size of the data volume to be sent of the terminal device in the first period through the first BSR, so as to schedule corresponding resources for the terminal device.
Optionally, the first BSR is sent by the terminal device using a resource preset or allocated by the access network device.
Optionally, the resource scheduled by the access network device for the terminal device may include: time domain resources, frequency domain resources, code domain resources, and the like.
In this embodiment of the present application, the first cycle refers to a scheduling cycle, and the first BSR refers to a BSR that is sent by the terminal device to the access network device in the first cycle.
S302, the access network equipment allocates a first uplink resource for the terminal equipment according to the first BSR and the first proportion.
The first ratio is used to indicate a ratio of a data volume received by the access network device in charge of the first period to a data volume to be sent of the terminal device indicated by the first BSR, and may also be understood as a ratio of the number of first uplink resources allocated by the access network device to the terminal device, to the total amount of uplink resources required by the terminal device to send all data to be sent. The first uplink resource is a resource, such as a time domain resource, a frequency domain resource, a code domain resource, and the like, which is allocated by the access network device to the terminal device and transmits data in the first period.
Optionally, the first uplink resource is determined according to the following formula:
RG＝R1*x1
wherein R isGFor the first uplink resource, R1Total amount of uplink resources, x, required for the amount of data to be transmitted indicated by the first BSR1Is a first ratio.
Optionally, the first ratio may be a preset value, and may be a value between 0 and 1 according to a requirement, for example, the first ratio is set to 20%. Alternatively, the first ratio may be a value adjusted according to actual conditions, such as an adjusted allocation ratio in a last scheduling period of the first period. The embodiment of the present application does not limit this.
It should be noted that, in steps S301 to S302, when the first uplink resource allocated to the terminal device by one access network device cannot meet the requirement of the terminal device for uploading all data to be sent, the terminal device may request another access network device to allocate the resource. As shown in fig. 1, at this time, the terminal device connects two access network devices, namely, an access network device a and an access network device B. The terminal device uploads a part of data to be sent through the access network device A, and uploads another part of data to be sent through the access network device B.
Optionally, the first ratios used by the access network device a and the access network device B may be different, for example, the first ratio 1 of the access network device a is 20%, and the first ratio 2 of the access network device B is 80%, and the corresponding first uplink resources calculated by this method are also different.
Illustratively, when the first ratio 1 of the access network device a is 20%, the first ratio 2 of the access network device B is set to 80%, and the first BSR indicates that the data to be transmitted of the terminal device is 8000 bits, the access network device a allocates the first uplink resource 1 of the terminal device for transmitting 1600 bits of the data to be transmitted, and the access network device B allocates the first uplink resource 2 of the terminal device for transmitting 6400 bits of the data to be transmitted.
S303, the access network equipment determines a first time length, an empty packet rate and a full packet rate.
The first duration is time consumed from receiving the first BSR to allocating the first uplink resource for the terminal device. The full packet rate is used to indicate a ratio of the number of times that the uplink data of the terminal device occupies the first uplink resource in the first period to the total number of times that the terminal device sends the uplink data on the first uplink resource in the first period. The null packet rate is used to indicate a ratio of the number of times that the first uplink resource is not occupied by the uplink data of the terminal device in the first period to the total number of times that the terminal device sends the uplink data on the first uplink resource in the first period.
Optionally, the access network device determines the first time length according to a waiting time length from the receiving of the first BSR to the allocation of the uplink resource to the terminal device, and a processing time length for allocating a suitable resource to the terminal device. Illustratively, the formula is as follows:
T1＝m1*T2+m2*T3
wherein, T1Is a first duration, T2Allocating uplink resources for the access network device according to the waiting time T from the reception of the first BSR to the terminal device3And allocating appropriate resources to the terminal equipment for the access network equipment. m is1And m2And the weighting coefficient is preset for the access network equipment.
Alternatively, m1And m2May be a fixed value. Or, m1And m2May be adjusted according to the actual situation. The embodiment of the present application does not limit this.
Optionally, the full packet rate is determined according to the following formula:
Pf＝Nf/N
wherein, PfFor full packet rate, N is the number of times of uplink of the scheduling terminal device in the first period, NfAnd the times that all the allocated resources are occupied by the data when the terminal equipment is scheduled to uplink in the first period are given.
Illustratively, when the total number of times that the terminal device sends the uplink data on the first uplink resource in the first period is 100 times, and the number of times that the uplink data of the terminal device occupies the first uplink resource in the first period is 80 times, the full packet rate corresponding to the first period is 80%.
Optionally, the null rate is determined according to the following formula:
Pe＝Ne/N
wherein, PeFor the empty packet rate, N is the number of times of uplink of the scheduling terminal equipment in the first period, NeAnd scheduling the times that all allocated resources are not occupied by data when the terminal equipment is scheduled to uplink in the first period.
Illustratively, when the total number of times that the terminal device sends the uplink data on the first uplink resource in the first period is 100 times, and the number of times that the uplink data of the terminal device does not occupy the first uplink resource in the first period is 20 times, the null packet rate corresponding to the first period is 20%.
S304, the access network equipment determines a second proportion according to the first duration, the full packet rate and the empty packet rate.
The second ratio is used to indicate a ratio of the data volume received by the access network device in charge of the second period to the data volume to be sent of the terminal device indicated by the second BSR, and may also be understood as a ratio of the amount of uplink resources allocated by the access network device to the terminal device, specifically, to the total amount of uplink resources required by all data to be sent of the terminal device.
In a possible implementation manner, the access network device determines the second ratio specifically according to the following two cases:
in case one, if the first duration is greater than or equal to the first threshold and the full packet rate is greater than or equal to the second threshold, the second proportion is determined according to the following formula:
x2＝max{x1-x3,0}
wherein x is1Is a first ratio, x2Is a second ratio, x3For the first adjustment, the operator max { x, y } indicates taking the maximum of the variables x and y.
Alternatively, the first threshold and the second threshold may be fixed values, for example, the first threshold is set to 100 milliseconds and the second threshold is set to 75%. Alternatively, the first threshold value and the second threshold value may be values adjusted according to actual conditions. The embodiment of the present application does not limit this.
It should be noted that, the first duration is greater than or equal to the first threshold, which indicates that the time for the access network device to process the resource scheduling of the terminal device is too long at this time, that is, the load of the access network device is higher at this time, and the time for the terminal device to wait for allocating the uplink resource is longer. And if the full packet rate is larger than or equal to the second threshold, it indicates that the load of the access network device is too high, and the uplink resource cannot be efficiently scheduled for the terminal device in time. Therefore, the access network device may reduce the amount of resources scheduled for the terminal device to reduce the load level of the access network device, i.e., the first ratio is subtracted from the first adjustment amount to obtain a second ratio having a smaller value.
Exemplarily, assume a first ratio x120%, the first adjustment amount x35%, first time period T1200 ms, 80% full rate, with a first threshold set to 100 ms and a second threshold set to 75%. Because the first time length is larger than the first threshold value, the full packet rate is larger than the second threshold value, and x1-x315% > 0, the second ratio x2＝x1-x3＝15％。
In case two, when the first time length is less than or equal to the third threshold and the null packet rate is less than or equal to the fourth threshold, the second ratio is determined according to the following formula:
x2＝min{x1+x4,1}
wherein x is1Is a first ratio, x2Is a second ratio, x4For the second adjustment, the operator min { x, y } represents taking the minimum of the variables x and y.
Alternatively, the third threshold and the fourth threshold may be fixed values, for example, the third threshold is set at 50 milliseconds and the fourth threshold is set at 25%. Alternatively, the third threshold and the fourth threshold may be values adjusted according to actual conditions. The embodiment of the present application does not limit this.
It can be understood that, the first time length is less than or equal to the third threshold, which means that the time for the access network device to process resource scheduling of the terminal device is short, that is, the load of the access network device is low, and the time for the terminal device to wait for allocating uplink resources is short. Furthermore, if the null packet rate is less than or equal to the fourth threshold, it indicates that the time for the terminal device to wait for allocating the uplink resource is short, but the uplink resource allocated to the terminal device by the access network device is insufficient, and the access network device still needs to increase the allocated uplink resource for the terminal device. Therefore, the access network device increases the number of resources scheduled for the terminal device, i.e., the first ratio is added to the second adjustment amount to obtain a second ratio with a larger value.
Exemplarily, assume a first ratio x120%, the second adjustment amount x45%, first time period T1The empty packet rate is 20% for 25 ms, and the third threshold is set to 50 ms and the fourth threshold is set to 25%. Because the first time length is less than the third threshold value, the empty packet rate is less than the fourth threshold value, and x1+x4When 25% < 1, the second ratio x2＝x1+x4＝25％。
The first adjustment amount and the second adjustment amount may be understood as adjustment steps, and may be adjusted multiple times. Wherein each adjustment may be performed in the manner described in case one or case two.
Alternatively, the first adjustment amount may be a fixed value, for example set to 5%. Alternatively, the first adjustment amount may be a value adjusted according to actual conditions. The embodiment of the present application does not limit this.
Alternatively, the first adjustment amount may be a fixed value, for example set to 5%. Alternatively, the second adjustment amount may be a value adjusted according to actual conditions. The embodiment of the present application does not limit this.
Alternatively, the first adjustment amount and the second adjustment amount may be set to the same value, for example, both set to 5%. The first adjustment amount and the second adjustment amount may also be set to unequal values, for example, the first adjustment amount is set to 4% and the second adjustment amount is set to 3%. The embodiment of the present application does not limit this.
It is to be understood that, when the terminal device connects two access network devices, such as the access network device a and the access network device B shown in fig. 1, at the same time in the second period, the second ratio calculated by the access network device a and the access network device B may be different. For example, the second ratio 1 calculated by the access network device a is 16%, and the second ratio 2 calculated by the access network device B is 84%. Wherein the sum of the second ratio 1 and the second ratio 2 is 1.
Optionally, in case that the terminal device has data to be sent after the first period, the access network device may continue to allocate uplink resources to the terminal device, for example, allocate a second uplink resource in a second period, which is described below, to the terminal device. That is, after the steps S301 to S304 are performed, the resource scheduling method illustrated in fig. 3 may further include the following steps S305 to S306:
s305, the access network equipment receives the second BSR.
And the second BSR is sent to the access network equipment by the terminal equipment. The second BSR is configured to indicate an amount of data to be transmitted by the terminal device in a second period.
Note that the second period is subsequent to the first period. The second period may be adjacent to the first period, i.e., a start time of the second period is an end time of the first period. Alternatively, the second period is after a period of time at the end of the first period.
In this embodiment of the present application, the second cycle refers to a scheduling cycle, and the second BSR refers to a BSR that is sent by the terminal device to the access network device in the second cycle.
S306, the access network equipment allocates a second uplink resource for the terminal equipment according to the second BSR and the second proportion.
The second uplink resource is a resource which is allocated by the access network device for the terminal device and is used for transmitting data in the second period. The calculation method of the second uplink resource is similar to the calculation method of the first uplink resource in step S302, and is not described herein again.
It should be noted that when the terminal device connects two access network devices, such as the access network device a and the access network device B shown in fig. 1, the access network device a and the access network device B may have different second ratios. Further, the second uplink resources scheduled by the access network device a and the access network device B may also be different.
Illustratively, when the second ratio 1 of the access network device a is 16%, the second ratio 2 of the access network device B is 84%, and the second BSR indicates that the data to be transmitted of the terminal device is 12000 bits, the access network device a allocates the second uplink resource 1 of the terminal device to be used for transmitting 1920 bits of the data to be transmitted, and the access network device B allocates the second uplink resource 2 of the terminal device to be used for transmitting 10080 bits of the data to be transmitted.
Based on the technical scheme shown in fig. 3, for any access network device, in one scheduling period, the time, the full packet rate, and the empty packet rate consumed from receiving a BSR to scheduling resources for a terminal device may be obtained, and the resource allocation ratio allocated to the terminal device in the next scheduling period may be adjusted accordingly. Therefore, the problem that the quantity of resources distributed to the terminal equipment by different access network equipment exceeds the resource requirement can be solved, signaling interaction is not needed between the access network equipment, any access network equipment can only distribute the resources to the terminal equipment according to the transmission condition and the resource distribution proportion of the access network equipment, the resource waste phenomenon can be avoided under the condition that the signaling overhead between the access network equipment is not increased, and the resource scheduling efficiency is improved.
In the embodiment of the present application, the access network device may be divided into the functional modules or the functional units according to the above method examples, for example, each functional module or functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in a form of hardware, or may be implemented in a form of a software functional module or a functional unit. The division of the modules or units in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
Fig. 4 is a schematic diagram of a possible structure of the access network device according to the foregoing embodiment. The access network apparatus 400 includes: a receiving module 401 and a processing module 402.
The receiving module 401 is configured to allocate a first uplink resource to the terminal device according to the first BSR and the first ratio.
A processing module 402 is configured to determine a first time length, a null packet rate, and a full packet rate.
The processing module 402 is further configured to determine a second ratio according to the first duration, the full packet rate, and the empty packet rate.
Optionally, the receiving module 401 is further configured to receive a second BSR from the terminal device in a second period.
Optionally, the processing module 402 is further configured to allocate a second uplink resource to the terminal device according to the second BSR and the second ratio.
Optionally, the access network device 400 may further include a sending module. The sending module (shown in fig. 4 as a dashed box) is used for the access network device 400 to send signaling and/or data to other devices, such as a terminal device or another access network device. Further, the receiving module 401 and the sending module may also be integrated into one module, such as a transceiver module.
Optionally, the access network apparatus 400 may further include a storage module (not shown in fig. 4) that stores programs or instructions. The program or instructions, when executed by the processing module 402, enable the access network device to perform the resource scheduling method described in the above method embodiments.
It should be noted that the access network device 400 may be a 4G base station, a 5G base station, or a chip (system) or other component or assembly disposed in a terminal device or a network device, which is not limited in this application.
In addition, for the technical effect of the access network device described in fig. 4, reference may be made to the technical effect of the resource scheduling method described in the foregoing embodiment, and details are not repeated here.
Fig. 5 is a schematic diagram of another possible structure of the access network device in the above embodiment. As shown in fig. 5, the access network apparatus 500 includes: a processor 502.
The processor 502 is configured to control and manage the actions of the access network device, for example, perform the steps performed by the receiving module 401 and the processing module 402, and/or perform other processes for the techniques described herein.
The processor 502 described above may be implemented or performed with the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may be a central processing unit, general purpose processor, digital signal processor, application specific integrated circuit, field programmable gate array or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others.
Optionally, the access network device 500 may further include a communication interface 503, a memory 501, and a bus 504. Wherein the communication interface 503 is used to support the communication of the access network device 500 with other network entities. A memory 501 is used to store program codes and data for the access network equipment.
Wherein the memory 501 may be a memory in an access network device, which may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; the memory may also comprise a combination of memories of the kind described above.
The bus 504 may be an Extended Industry Standard Architecture (EISA) bus or the like. The bus 504 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 5, but this is not intended to represent only one bus or type of bus.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus, and the module described above, reference may be made to the corresponding processes in the foregoing method embodiments, which are not described herein again.
The present application provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the resource scheduling method described in the above method embodiments.
An embodiment of the present application further provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the computer executes the instructions, the computer executes each step executed by the network device in the method flow shown in the foregoing method embodiment.
The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, and a hard disk. Random Access Memory (RAM), Read-Only Memory (ROM), Erasable Programmable Read-Only Memory (EPROM), registers, a hard disk, an optical fiber, a portable Compact disk Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any other form of computer-readable storage medium, in any suitable combination, or as appropriate in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuit (ASIC). In embodiments of the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A resource scheduling method is applied to access network equipment, and is characterized in that the method comprises the following steps:
the access network equipment receives a first Buffer Status Report (BSR) from terminal equipment, wherein the first BSR is used for indicating the data volume transmitted by the terminal equipment in a first period;
the access network equipment allocates a first uplink resource to the terminal equipment according to the first BSR and the first proportion;
the access network equipment determines a first time length, an empty packet rate and a full packet rate; the first duration is time consumed from receiving the first BSR to allocating the first uplink resource to the terminal device, the full packet rate is used to indicate a ratio of a number of times that uplink data of the terminal device occupies the first uplink resource in the first period to a total number of times that the terminal device transmits uplink data on the first uplink resource in the first period, and the empty packet rate is used to indicate a ratio of a number of times that the uplink data of the terminal device does not occupy the first uplink resource in the first period to a total number of times that the terminal device transmits uplink data on the first uplink resource in the first period;
and the access network equipment determines a second proportion according to the first duration, the full packet rate and the empty packet rate.
2. The method of claim 1, wherein when the first duration is greater than or equal to a first threshold and the full packet rate is greater than or equal to a second threshold, the second ratio is determined according to the following formula:
x2＝max{x1-x3,0}，
wherein x is1Is the first ratio, x2Is the second ratio, x3Is the first adjustment amount.
3. The method of claim 1, wherein when the first time duration is less than or equal to a third threshold and the null packet rate is less than or equal to a fourth threshold, the second ratio is determined according to the following formula:
x2＝min{x1+x4,1}，
wherein x is1Is the first ratio, x2Is the second ratio, x4Is the second adjustment amount.
4. The method according to any one of claims 1-3, further comprising:
the access network equipment receives a second BSR from the terminal equipment in a second period;
and the access network equipment allocates a second uplink resource to the terminal equipment according to the second BSR and the second proportion.
5. An access network device, characterized in that the access network device comprises: the device comprises a receiving module and a processing module;
the receiving module is configured to receive a first buffer status report BSR from a terminal device, where the first BSR is used to indicate a data amount transmitted by the terminal device in a first period;
the processing module is configured to allocate a first uplink resource to the terminal device according to the first BSR and the first ratio;
the processing module is further used for determining a first time length, an empty packet rate and a full packet rate; the first duration is time consumed from receiving the first BSR to allocating the first uplink resource to the terminal device, the full packet rate is used to indicate a ratio of a number of times that uplink data of the terminal device occupies the first uplink resource in the first period to a total number of times that the terminal device transmits uplink data on the first uplink resource in the first period, and the empty packet rate is used to indicate a ratio of a number of times that the uplink data of the terminal device does not occupy the first uplink resource in the first period to a total number of times that the terminal device transmits uplink data on the first uplink resource in the first period;
the processing module is further configured to determine a second ratio according to the first duration, the full packet rate, and the empty packet rate.
6. The access network device of claim 5, wherein when the first duration is greater than or equal to a first threshold and the full packet rate is greater than or equal to a second threshold, the second ratio is determined according to the following formula:
x2＝max{x1-x3,0}，
wherein x is1Is the first ratio, x2Is the second ratio, x3Is the first adjustment amount.
7. The access network device of claim 5, wherein when the first time period is less than or equal to a third threshold and the null packet rate is less than or equal to a fourth threshold, the second ratio is determined according to the following formula:
x2＝min{x1+x4,1}，
wherein x is1Is the first ratio, x2Is the second ratio, x4Is the second adjustment amount.
8. An access network device according to any one of claims 5-7,
the receiving module is further configured to receive a second BSR from the terminal device in a second period;
the processing module is further configured to allocate a second uplink resource to the terminal device according to the second BSR and the second ratio.
9. An access network device, comprising: a processor and a communication interface; the communication interface is coupled to the processor, which is configured to execute a computer program or instructions to implement the resource scheduling method of any of the preceding claims 1-4.
10. A computer-readable storage medium having instructions stored therein, wherein when the instructions are executed by a computer, the computer performs the resource scheduling method of any one of claims 1 to 4.
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