CN106604404B - Service scheduling method and device - Google Patents
Service scheduling method and device Download PDFInfo
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- CN106604404B CN106604404B CN201510684781.5A CN201510684781A CN106604404B CN 106604404 B CN106604404 B CN 106604404B CN 201510684781 A CN201510684781 A CN 201510684781A CN 106604404 B CN106604404 B CN 106604404B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
- H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
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Abstract
The invention discloses a service scheduling method and a device, which are used for realizing the scheduling of background services in a semi-static scheduling mode, thereby relieving the resource shortage of a downlink control area and the waste of data area resources caused by excessive low-flow user equipment and further reasonably utilizing the physical resources of a cell, and the service scheduling method provided by the embodiment of the invention comprises the following steps: identifying the category of the service flow; and when the service flow is determined to belong to the background service, scheduling the background service in a semi-static scheduling mode.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for scheduling a service.
Background
In a long Term Evolution (L ong-Term Evolution, L TE) system, in a time domain, each 10ms radio frame is divided into 10 subframes of 1ms, each subframe includes 2 slots (slots), each slot includes 7 Orthogonal Frequency Division Multiplexing (OFDM) symbols, and in a Frequency domain, each slot is composed of a series of subcarriers, in a L TE system, the first three OFDM symbols of the first slot of each downlink subframe can be used for transmitting control channel information, each downlink subframe is divided into two parts, a downlink control region and a downlink data region, each uplink subframe is divided into an uplink data region.
In the current L TE system, two scheduling modes of dynamic scheduling and semi-static scheduling are defined, the following behavior example is that for dynamic scheduling, scheduling information needs to be sent up and down on a Physical Downlink Control Channel (PDCCH) of a Downlink control region, and UE data needs to be sent on a Physical Downlink Shared Channel (PDSCH), so that the UE knows information of decoded data, such as data block size, Physical resource location, and the like, for semi-static scheduling, scheduling information is sent on the PDCCH of the Downlink control region once, and then if new configuration is not performed, UE data is sent on fixed Physical resources of a fixed period according to fixed data blocks, so that the base station does not need to send scheduling information on the PDCCH and down at each scheduling, and the UE does not need to send scheduling information on the PDCCH at each time, and therefore, semi-static scheduling saves resources of the Downlink control region compared with dynamic scheduling, but also has many restrictions of semi-static scheduling, and the UE can only use the semi-static scheduling bandwidth of the semi-static scheduling, such as the semi-static scheduling, the QoS of the uplink data is not limited by the QoS of the semi-static scheduling, so that the semi-static scheduling can only reach the semi-static scheduling server (e) of QoS) of the semi-static scheduling, the QoS data is used in the uplink data reaching Service data of the semi-static scheduling, and the semi-static scheduling, such as the semi-static scheduling, the QoS 6754.
In summary, most services in the prior art cannot use semi-persistent scheduling in the L TE system, so that insufficient resources in the downlink control area and waste of resources in the data area due to excessive user equipments with small traffic cannot be alleviated, and thus physical resources of the cell are not reasonably utilized.
Disclosure of Invention
The embodiment of the invention provides a service scheduling method and a service scheduling device, which are used for realizing the scheduling of background services in a semi-static scheduling mode, so that the resource shortage of a downlink control area and the waste of data area resources caused by excessive low-flow user equipment are relieved, and the physical resources of a cell are reasonably utilized.
The service scheduling method provided by the embodiment of the invention comprises the following steps:
identifying the category of the service flow;
and when the service flow is determined to belong to the background service, scheduling the background service in a semi-static scheduling mode.
The service flow is a service flow sent by a core network or a service flow sent by user equipment.
By the method, the background services can be scheduled in a semi-static scheduling mode, and resources of the downlink control area are saved, so that the defects of insufficient resources of the downlink control area and the waste of resources of the data area caused by excessive user equipment with small flow are relieved, and further, the physical resources of the cell are reasonably utilized.
Preferably, when it is determined that the service flow belongs to the background service, scheduling the background service in a semi-static scheduling manner includes:
when the service flow is determined to belong to the background service, performing service flow planning on the service flow of the background service to obtain a service flow planning parameter;
and scheduling the background service in a semi-static scheduling mode according to the service flow planning parameters.
The method comprises the steps of planning the service flow of the background service to obtain a service flow planning parameter, and scheduling the background service in a semi-static scheduling mode according to the service flow planning parameter, so that resources of a downlink control area are saved, the resource shortage of the downlink control area caused by excessive user equipment with small flow and the waste of resources of a data area are relieved, and the physical resources of the cell are reasonably utilized.
Preferably, the performing service flow planning on the service flow of the background service to obtain a service flow planning parameter specifically includes:
and planning the service flow of the background service according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period to obtain a service flow planning parameter.
Preferably, the service flow planning parameters include: the size and period of the data block used when semi-persistent scheduling is performed.
Preferably, the method further comprises:
when the physical downlink shared channel resource condition changes, judging whether the service flow planning parameters need to be updated;
if the service flow planning parameter needs to be updated, performing service flow planning on the service flow of the current background service again according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period to obtain an updated service flow planning parameter;
and scheduling the current background service in a semi-static scheduling mode according to the updated service flow planning parameter.
When the physical downlink shared channel resource condition changes, the service flow planning parameters are updated, and the current background services are scheduled in a semi-static scheduling mode according to the updated service flow planning parameters, so that the background services can be scheduled in the semi-static scheduling mode, and the resources of a downlink control area are saved, thereby relieving the resource deficiency of the downlink control area and the waste of data area resources caused by excessive user equipment with small flow, further reasonably utilizing the physical resources of the cell, and simultaneously, the service flow planning parameters are updated according to the physical downlink shared channel resource condition change, thereby more reasonably utilizing the physical resources of the cell.
Preferably, the method further comprises:
and in the process of updating the service flow planning parameters, scheduling the current background services in a dynamic scheduling mode.
Preferably, when the condition of the physical downlink shared channel resource changes, determining whether a service flow planning parameter needs to be updated includes:
and when the physical downlink shared channel resource condition changes, recalculating the size of the data block adopted for semi-static scheduling according to the changed physical downlink shared channel resource condition, and determining that the service flow planning parameter needs to be updated if the difference value between the recalculated size of the data block and the original size of the data block is larger than a preset threshold value.
Preferably, the service flow is subjected to class identification when the following conditions are met:
the remaining available resources of the control area in the current subframe are smaller than a preset first threshold, and the remaining available resources of the data area in the current subframe are larger than a preset second threshold.
Preferably, when it is determined that the service flow belongs to a background service and is a service flow sent by a core network, before performing service flow planning on the service flow of the background service, the method further includes:
and caching the service flow of the background service.
Preferably, when it is determined that the service flow belongs to a background service and is a service flow sent by a core network, the scheduling is performed on the background service in a semi-static scheduling manner, which specifically includes:
and when the service flow is determined to belong to the background service and is the service flow sent by the core network, sending the cached service flow to the user equipment by adopting a semi-static scheduling mode.
Preferably, when it is determined that the service flow belongs to a background service and is a service flow sent by a user equipment, the scheduling is performed on the background service in a semi-persistent scheduling manner, which specifically includes:
and when the service flow is determined to belong to the background service and is the service flow transmitted by the user equipment, scheduling the background service required to be transmitted by the user equipment by adopting a semi-static scheduling mode.
Correspondingly to the foregoing method, an embodiment of the present invention provides a service scheduling apparatus, including:
the service flow identification unit is used for identifying the type of the service flow;
and the service scheduling unit is used for scheduling the background service in a semi-static scheduling mode when the service flow is determined to belong to the background service.
The service flow is a service flow sent by a core network or a service flow sent by user equipment.
By the device, the background service can be scheduled by adopting a semi-static scheduling mode, the resources of the downlink control area are saved, the resource deficiency of the downlink control area and the waste of the resources of the data area caused by excessive user equipment with small flow are relieved, and the physical resources of the cell are reasonably utilized,
preferably, the service scheduling unit is specifically configured to:
when the service flow is determined to belong to the background service, performing service flow planning on the service flow of the background service to obtain a service flow planning parameter;
and scheduling the background service in a semi-static scheduling mode according to the service flow planning parameters.
Preferably, when performing service flow planning on the service flow of the background service to obtain a service flow planning parameter, the service scheduling unit is specifically configured to:
and planning the service flow of the background service according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period to obtain a service flow planning parameter.
Wherein the service flow planning parameters include: the size and period of the data block used when semi-persistent scheduling is performed.
Preferably, the service scheduling unit is further configured to:
when the physical downlink shared channel resource condition changes, judging whether the service flow planning parameters need to be updated;
if the service flow planning parameter needs to be updated, performing service flow planning on the service flow of the current background service again according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period to obtain an updated service flow planning parameter;
and scheduling the current background service in a semi-static scheduling mode according to the updated service flow planning parameter.
Preferably, the service scheduling unit is further configured to:
and in the process of updating the service flow planning parameters, scheduling the current background services in a dynamic scheduling mode.
Preferably, when the condition of the physical downlink shared channel resource changes and whether the service flow planning parameter needs to be updated is judged, the service scheduling unit is specifically configured to:
and when the physical downlink shared channel resource condition changes, recalculating the size of the data block adopted for semi-static scheduling according to the changed physical downlink shared channel resource condition, and determining that the service flow planning parameter needs to be updated if the difference value between the recalculated size of the data block and the original size of the data block is larger than a preset threshold value.
Preferably, the traffic flow identification unit performs class identification on the traffic flow when the following conditions are satisfied:
the remaining available resources of the control area in the current subframe are smaller than a preset first threshold, and the remaining available resources of the data area in the current subframe are larger than a preset second threshold.
Preferably, when determining that the service flow belongs to a background service and is a service flow sent by a core network, the service scheduling unit is further configured to, before performing service flow planning on the service flow of the background service:
and caching the service flow of the background service.
Preferably, the service scheduling unit is specifically configured to:
and when the service flow is determined to belong to the background service and is the service flow sent by the core network, sending the cached service flow to the user equipment by adopting a semi-static scheduling mode.
Preferably, the service scheduling unit is specifically configured to:
and when the service flow is determined to belong to the background service and is the service flow transmitted by the user equipment, scheduling the background service required to be transmitted by the user equipment by adopting a semi-static scheduling mode.
Drawings
Fig. 1 is a schematic flowchart of a service scheduling method according to an embodiment of the present invention;
fig. 2 is a schematic overall flow chart of downlink FTP service scheduling provided in the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a service scheduling apparatus according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a service scheduling method and a service scheduling device, which are used for realizing the scheduling of background services in a semi-static scheduling mode, so that the resource shortage of a downlink control area and the waste of data area resources caused by excessive low-flow user equipment are relieved, and the physical resources of a cell are reasonably utilized.
Referring to fig. 1, at a base station side, a service scheduling method provided in an embodiment of the present invention includes:
s101, identifying the type of a service flow;
s102, when the service flow is determined to belong to the background service, scheduling the background service in a semi-static scheduling mode.
The service flow is a service flow sent by a core network or a service flow sent by user equipment, for downlink, the service flow is a service flow sent by the core network, and accordingly, the background service can be called a downlink background service, and for uplink, the service flow is a service flow sent by the user equipment, and accordingly, the background service can be called an uplink background service; the identifying the category of the service flow specifically includes: when the UE establishes data connection, a base station receives a service flow sent by a core network or user equipment, performs category identification according to information such as an application layer protocol and an IP address in the service flow by a Deep Packet Inspection (DPI) technology, and performs category identification on the identified service, wherein the identified service can be identified as a background service and a non-background service; the background Service represents that the user does not pay attention to the transmission characteristics of the real-time data, such as time delay, jitter and the like, and represents that the Service comprises an email, a Short Message Service (SMS), a Multimedia Message Service (MMS), an FTP Service and the like; the non-background services are, on the contrary, representative services such as video streaming, audio streaming, Web browsing, network games, electronic commerce and the like.
Preferably, the service flow is subjected to class identification when the following conditions are met:
the remaining available resources of the control area in the current subframe are smaller than a preset first threshold, and the remaining available resources of the data area in the current subframe are larger than a preset second threshold.
The specific values of the first threshold and the second threshold may be set according to actual needs.
The scheduling of the background service in the semi-static scheduling mode is divided into two situations of scheduling the downlink background service in the semi-static scheduling mode and scheduling the uplink background service in the semi-static scheduling mode.
The scheduling of the downlink background services in a semi-static scheduling manner specifically includes:
when the service flow is determined to belong to the downlink background type service, caching the service flow according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period, and planning the service flow of the cached service flow to obtain a service flow planning parameter;
and sending the cached service flow to user equipment by adopting a semi-static scheduling mode according to the service flow planning parameter.
Scheduling the uplink background service in a semi-static scheduling mode, specifically comprising:
when the service flow is determined to belong to the uplink background service, performing service flow planning on the service flow of the uplink background service according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period to obtain a service flow planning parameter;
and scheduling the background services which need to be sent by the user equipment by adopting a semi-static scheduling mode according to the service flow planning parameters.
The user equipment may be, for example, a mobile phone, a smart terminal, a multimedia device, a streaming media device, and so on.
The service flow planning refers to calculating service flow planning parameters according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period; the physical downlink shared channel resource condition may include, for example: physical Resource Block (PRB) information, UE number information, and the like.
The service flow planning parameters may include, for example: the size and period of the data block used when semi-persistent scheduling is performed. For downlink, the size and the period of the data block used when performing semi-persistent scheduling refer to the size and the period of the data block used when the base station performs semi-persistent scheduling on the downlink background service, and for uplink, the size and the period of the data block used when performing semi-persistent scheduling refer to the size and the period of the data block used when the base station performs semi-persistent scheduling on the uplink background service.
The data block size is related to the free PRB resource information and the periodicity.
The period is related to the current number of the UEs, the value of the period can be set according to actual needs, when the number of the UEs is small, the period is set to be short, otherwise, the period is set to be long.
It should be noted that, the service flow planning is performed on the service flow of the background service according to the physical downlink shared channel resource condition counted by taking the radio frame as the period, so as to obtain the service flow planning parameter, which is not used for limiting the present invention, where the period by taking the radio frame may also be an integer multiple of the radio frame.
Preferably, the method further comprises:
when the physical downlink shared channel resource condition changes, judging whether the service flow planning parameters need to be updated;
if the service flow planning parameter needs to be updated, performing service flow planning on the service flow of the current background service again according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period to obtain an updated service flow planning parameter;
and scheduling the current background service in a semi-static scheduling mode according to the updated service flow planning parameter.
Preferably, the method further comprises:
and in the process of updating the service flow planning parameters, scheduling the current background services in a dynamic scheduling mode.
Preferably, when the condition of the physical downlink shared channel resource changes, determining whether a service flow planning parameter needs to be updated includes:
when the physical downlink shared channel resource condition changes, recalculating the size of the data block used for semi-persistent scheduling according to the changed physical downlink shared channel resource condition, and determining that the service flow planning parameter needs to be updated if the difference between the recalculated size of the data block and the original size of the data block is greater than a preset threshold (the threshold may be determined according to actual needs).
It should be noted that the size of the data block obtained by recalculation may be larger, or the size of the original data block may be larger, but as long as the difference between the size of the data block obtained by recalculation and the size of the original data block is larger than the preset threshold, it is determined that the service flow planning parameter needs to be updated.
Taking the recalculated data block size larger than the original data block size as an example, the following specific example is given:
knowing the number of idle PRBs is 50 according to the physical downlink shared channel resource condition, calculating according to an average Modulation and Coding Scheme (MCS) grade 7, wherein the Size of a Transport Block Size (TBS) is 6200 at the moment, assuming that a base station adopts an uplink subframe type 2 to carry out data transmission, 2 background services exist currently, the period of sending a data block of UE by the base station is 10ms, the retransmission rate is 20%, 30% of PRB resources are reserved and are not used, and the Size of the data block is about 2712.5 Byte;
when the physical downlink shared channel resource condition changes, the number of idle PRBs is known to be 60, and the size of a data block obtained by recalculation according to the other assumptions is about 3160.5 Byte;
if the threshold value is set to 10% of the original data block size, it is determined that the service flow planning parameter needs to be updated because the difference between the recalculated data block size and the original data block size is greater than 10% of the original data block size.
To sum up, the service scheduling method provided in the embodiment of the present invention is consistent in the principle of scheduling the uplink service and the downlink service, that is, the background service may be scheduled in a semi-static scheduling manner, and the difference is that for the downlink service, the base station receives a service flow sent by a core network, performs class identification on the service flow, and when it is determined that the service flow belongs to the background service, caches the service flow, and sends the cached service flow to the user equipment in the semi-static scheduling manner; for the uplink service, the base station receives a service flow sent by user equipment, identifies the type of the service flow, and schedules the background service needing to be sent by the user equipment by adopting a semi-static scheduling mode when the service flow is determined to belong to the background service.
Preferably, in the specific embodiment of the present invention, the service scheduling method at the base station side is mainly executed by a Packet Data Convergence Protocol (PDCP) layer and an MAC layer in the base station, where the PDCP layer may include a Deep Packet Inspection (DPI) module, a service flow planning module, and a service flow reforming module, and the following takes downlink FTP service as an example, and the overall process of service scheduling in the specific embodiment of the present invention is described with reference to fig. 2:
s201, a service flow reforming module receives a service flow sent by a core network;
s202, the DPI module identifies the type of the service flow;
s203, when the service flow is determined to belong to the FTP service, the service flow reforming module caches the service flow, the service flow planning module plans the cached service flow according to the physical downlink shared channel resource condition which is fed back by a Medium Access Control (MAC) layer and counted by taking a wireless frame as a period, so as to obtain a service flow planning parameter, and sends the obtained service flow planning parameter to the service flow reforming module and the MAC layer; the service flow planning parameters comprise the size and the period of a data block adopted when the base station performs semi-static scheduling on the downlink FTP service;
s204, the service flow reforming module shapes the cached service flow according to the received service flow planning parameter, and sends the shaped service data to an MAC layer according to the size and the period of the data block in the service flow planning parameter;
s205, after receiving the shaped service flow sent by the service flow reforming module, the MAC layer sends the shaped service flow to user equipment by adopting a semi-static scheduling mode according to the received service flow planning parameter;
the service flow planning module receives the physical downlink shared channel resource condition which is fed back by the MAC layer and counted according to the radio frame as a period, and when the physical downlink shared channel resource condition changes, the service scheduling in the specific embodiment of the invention further comprises the following steps:
s206, when the physical downlink shared channel resource condition changes, the service flow planning module recalculates the size of the data block adopted for semi-static scheduling according to the changed physical downlink shared channel resource condition, and if the difference value between the recalculated size of the data block and the original size of the data block is larger than a preset threshold value, the service flow planning parameter is determined to be updated;
s207, the service flow planning module plans the service flow of the current FTP service flow again according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period to obtain an updated service flow planning parameter, and sends the obtained updated service flow planning parameter to the service flow reforming module and the MAC layer;
in the process of updating the service flow planning parameters, the MAC layer sends the FTP service flow cached currently to the user equipment in a dynamic scheduling mode;
s208, the service flow reforming module shapes the FTP service flow cached currently according to the received updated service flow planning parameter, and sends the shaped service data to the MAC layer according to the size and the period of the data block in the updated service flow planning parameter;
s209, after receiving the shaped service flow sent by the service flow reforming module, the MAC layer sends the shaped FTP service flow to the user equipment by adopting a semi-static scheduling mode according to the received updated service flow planning parameter.
In the service scheduling method provided in the embodiment of the present invention, for an uplink FTP service, a service scheduling principle of the uplink FTP service is consistent with the principle of the downlink FTP service scheduling, and the same steps are not described herein again, and only steps having different points are described below:
for S201, the service flow reforming module receives a service flow sent by user equipment;
for step S203, when it is determined that the service flow belongs to the FTP service, the service flow planning module performs service flow planning on the cached service flow according to the physical downlink shared channel resource condition fed back by the MAC layer and counted according to the radio frame as a period, to obtain a service flow planning parameter, and sends the obtained service flow planning parameter to the MAC layer; the service flow planning parameters comprise the size and the period of a data block adopted when the base station performs semi-static scheduling on the uplink FTP service;
for the step S205, the MAC layer schedules the FTP service that needs to be sent by the user equipment in a semi-static scheduling manner according to the received service flow planning parameter;
for the step S207, the service flow planning module performs service flow planning on the current FTP service flow again according to the physical downlink shared channel resource condition counted according to the radio frame as the period, to obtain an updated service flow planning parameter, and sends the obtained updated service flow planning parameter to the MAC layer;
in the process of updating the service flow planning parameters, the MAC layer adopts a dynamic scheduling mode to schedule the FTP service which needs to be sent by the user equipment;
and for S209, the MAC layer schedules the FTP service which needs to be sent by the user equipment by adopting a semi-static scheduling mode according to the received updated service flow planning parameter.
For the uplink FTP service, steps S204 and S208 do not need to be performed;
in addition, the method includes mechanisms in existing protocols: because the data of the background service, which is sent from the PDCP layer to the MAC layer according to the fixed period and the size of the fixed data block, cannot be sent every time as in an ideal case, when the accumulation of the data of the background service, which is sent from the PDCP layer, in the MAC layer exceeds a preset threshold, for example, the threshold is 100Byte, the MAC layer temporarily uses dynamic scheduling to send the accumulated data stream to the user equipment in time.
Referring to fig. 3, corresponding to the foregoing method, an apparatus for scheduling a service according to an embodiment of the present invention includes:
a service flow identification unit 11, configured to perform category identification on a service flow; the service flow is a service flow sent by a core network or a service flow sent by user equipment;
and the service scheduling unit 12 is configured to, when it is determined that the service flow belongs to the background service, perform scheduling on the background service in a semi-static scheduling manner.
Preferably, the service scheduling unit 12 is specifically configured to:
when the service flow is determined to belong to the background service, performing service flow planning on the service flow of the background service to obtain a service flow planning parameter;
and scheduling the background service in a semi-static scheduling mode according to the service flow planning parameters.
Preferably, the service scheduling unit 12 is specifically configured to, when performing service flow planning on the service flow of the background service to obtain a service flow planning parameter:
and planning the service flow of the background service according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period to obtain a service flow planning parameter.
Preferably, the service flow planning parameters include: the size and period of the data block used when semi-persistent scheduling is performed.
Preferably, the traffic scheduling unit 12 is further configured to:
when the physical downlink shared channel resource condition changes, judging whether the service flow planning parameters need to be updated;
if the service flow planning parameter needs to be updated, performing service flow planning on the service flow of the current background service again according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period to obtain an updated service flow planning parameter;
and scheduling the current background service in a semi-static scheduling mode according to the updated service flow planning parameter.
Preferably, the traffic scheduling unit 12 is further configured to:
and in the process of updating the service flow planning parameters, scheduling the current background services in a dynamic scheduling mode.
Preferably, when the condition of the physical downlink shared channel resource changes and whether the service flow planning parameter needs to be updated is judged, the service scheduling unit 12 is specifically configured to:
and when the physical downlink shared channel resource condition changes, recalculating the size of the data block adopted for semi-static scheduling according to the changed physical downlink shared channel resource condition, and determining that the service flow planning parameter needs to be updated if the difference value between the recalculated size of the data block and the original size of the data block is larger than a preset threshold value.
Preferably, the traffic flow identification unit 11 performs class identification on the traffic flow when the following conditions are satisfied:
the remaining available resources of the control area in the current subframe are smaller than a preset first threshold, and the remaining available resources of the data area in the current subframe are larger than a preset second threshold.
Preferably, when determining that the service flow belongs to a background service and is a service flow sent by a core network, the service scheduling unit 12 is further configured to, before performing service flow planning on the service flow of the background service:
and caching the service flow of the background service.
Preferably, the service scheduling unit 12 is specifically configured to:
and when the service flow is determined to belong to the background service and is the service flow sent by the core network, sending the cached service flow to the user equipment by adopting a semi-static scheduling mode.
Preferably, the service scheduling unit 12 is specifically configured to:
and when the service flow is determined to belong to the background service and is the service flow transmitted by the user equipment, scheduling the background service required to be transmitted by the user equipment by adopting a semi-static scheduling mode.
Each of the above units may be implemented by a physical device such as a processor.
In summary, the technical solution provided in the embodiments of the present invention identifies the category of the service flow; when the service flow is determined to belong to the background service, the background service is scheduled in a semi-static scheduling mode, so that the background service can be scheduled in the semi-static scheduling mode, the resources of a downlink control area are saved, the shortage of the resources of the downlink control area and the waste of the resources of a data area caused by excessive users with small flow are relieved, the physical resources of a cell are reasonably utilized, and meanwhile, the service flow planning parameters are updated according to the change of the physical downlink shared channel resource condition, so that the physical resources of the cell are more reasonably utilized.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (16)
1. A method for scheduling traffic, the method comprising:
identifying the category of the service flow;
when the service flow is determined to belong to the background service, scheduling the background service in a semi-static scheduling mode;
when it is determined that the service flow belongs to the background service, scheduling the background service in a semi-static scheduling manner, specifically including:
when the service flow is determined to belong to the background service, performing service flow planning on the service flow of the background service to obtain a service flow planning parameter;
scheduling the background service in a semi-static scheduling mode according to the service flow planning parameter;
the service flow planning for the service flow of the background service to obtain a service flow planning parameter specifically includes:
performing service flow planning on the service flow of the background service according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period to obtain a service flow planning parameter;
the method further comprises the following steps:
when the physical downlink shared channel resource condition changes, judging whether the service flow planning parameters need to be updated;
if the service flow planning parameter needs to be updated, performing service flow planning on the service flow of the current background service again according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period to obtain an updated service flow planning parameter;
scheduling the current background service in a semi-static scheduling mode according to the updated service flow planning parameter;
wherein the service flow planning parameters include: the size and period of the data block used when semi-persistent scheduling is performed.
2. The method of claim 1, wherein the traffic flow is a traffic flow sent by a core network or a traffic flow sent by a user equipment.
3. The method of claim 1, further comprising:
and in the process of updating the service flow planning parameters, scheduling the current background services in a dynamic scheduling mode.
4. The method according to claim 1 or 3, wherein when the condition of the physical downlink shared channel resource changes, determining whether a service flow planning parameter needs to be updated includes:
and when the physical downlink shared channel resource condition changes, recalculating the size of the data block adopted for semi-static scheduling according to the changed physical downlink shared channel resource condition, and determining that the service flow planning parameter needs to be updated if the difference value between the recalculated size of the data block and the original size of the data block is larger than a preset threshold value.
5. The method of claim 1, wherein the traffic flow is classified when the following conditions are satisfied:
the remaining available resources of the control area in the current subframe are smaller than a preset first threshold, and the remaining available resources of the data area in the current subframe are larger than a preset second threshold.
6. The method of claim 1, wherein when it is determined that the service flow belongs to a background service and is a service flow transmitted by a core network, before performing service flow planning on the service flow of the background service, the method further comprises:
and caching the service flow of the background service.
7. The method according to claim 6, wherein when it is determined that the service flow belongs to a background service and is a service flow transmitted by a core network, the method of scheduling the background service in a semi-persistent scheduling manner specifically includes:
and when the service flow is determined to belong to the background service and is the service flow sent by the core network, sending the cached service flow to the user equipment by adopting a semi-static scheduling mode.
8. The method of claim 1, wherein when it is determined that the service flow belongs to a background service and is a service flow sent by a user equipment, the method of scheduling the background service in a semi-persistent scheduling manner specifically includes:
and when the service flow is determined to belong to the background service and is the service flow transmitted by the user equipment, scheduling the background service required to be transmitted by the user equipment by adopting a semi-static scheduling mode.
9. A traffic scheduling apparatus, comprising:
the service flow identification unit is used for identifying the type of the service flow;
the service scheduling unit is used for scheduling the background service in a semi-static scheduling mode when the service flow is determined to belong to the background service;
wherein the service scheduling unit is specifically configured to:
when the service flow is determined to belong to the background service, performing service flow planning on the service flow of the background service to obtain a service flow planning parameter;
scheduling the background service in a semi-static scheduling mode according to the service flow planning parameter;
the service scheduling unit is specifically configured to, when performing service flow planning on the service flow of the background service to obtain a service flow planning parameter:
performing service flow planning on the service flow of the background service according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period to obtain a service flow planning parameter;
the service scheduling unit is further configured to:
when the physical downlink shared channel resource condition changes, judging whether the service flow planning parameters need to be updated;
if the service flow planning parameter needs to be updated, performing service flow planning on the service flow of the current background service again according to the physical downlink shared channel resource condition counted by taking a wireless frame as a period to obtain an updated service flow planning parameter;
scheduling the current background service in a semi-static scheduling mode according to the updated service flow planning parameter;
wherein the service flow planning parameters include: the size and period of the data block used when semi-persistent scheduling is performed.
10. The apparatus of claim 9, wherein the traffic flow is a traffic flow sent by a core network or a traffic flow sent by a user equipment.
11. The apparatus of claim 9, wherein the traffic scheduling unit is further configured to:
and in the process of updating the service flow planning parameters, scheduling the current background services in a dynamic scheduling mode.
12. The apparatus according to claim 9 or 11, wherein the service scheduling unit, when the condition of the physical downlink shared channel resource changes and whether a service flow planning parameter needs to be updated is determined, is specifically configured to:
and when the physical downlink shared channel resource condition changes, recalculating the size of the data block adopted for semi-static scheduling according to the changed physical downlink shared channel resource condition, and determining that the service flow planning parameter needs to be updated if the difference value between the recalculated size of the data block and the original size of the data block is larger than a preset threshold value.
13. The apparatus of claim 9, wherein the traffic flow identification unit performs class identification on the traffic flow when the following conditions are satisfied:
the remaining available resources of the control area in the current subframe are smaller than a preset first threshold, and the remaining available resources of the data area in the current subframe are larger than a preset second threshold.
14. The apparatus of claim 9, wherein when determining that the service flow belongs to a background-class service and is a service flow sent by a core network, the service scheduling unit, before performing service flow planning on the service flow of the background-class service, is further configured to:
and caching the service flow of the background service.
15. The apparatus of claim 14, wherein the traffic scheduling unit is specifically configured to:
and when the service flow is determined to belong to the background service and is the service flow sent by the core network, sending the cached service flow to the user equipment by adopting a semi-static scheduling mode.
16. The apparatus according to claim 9, wherein the traffic scheduling unit is specifically configured to:
and when the service flow is determined to belong to the background service and is the service flow transmitted by the user equipment, scheduling the background service required to be transmitted by the user equipment by adopting a semi-static scheduling mode.
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| CN110139239B (en) * | 2018-02-09 | 2021-03-16 | 电信科学技术研究院有限公司 | Method and terminal for service transmission |
| CN111511033B (en) * | 2019-01-30 | 2022-02-08 | 华为技术有限公司 | Resource allocation method and device for short-period semi-persistent scheduling |
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| CN102056174B (en) * | 2010-12-16 | 2014-03-12 | 大唐移动通信设备有限公司 | Resource scheduling method and device and base station |
| CN103442446B (en) * | 2013-08-01 | 2016-08-10 | 奥维通信股份有限公司 | Dynamic and semi-static combined scheduling method in a kind of LTE system |
| CN104378829B (en) * | 2013-08-15 | 2019-01-11 | 上海诺基亚贝尔股份有限公司 | A kind of method and its equipment for implementing channel distribution and scheduling based on type of service |
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| CN104427626A (en) * | 2013-08-23 | 2015-03-18 | 普天信息技术有限公司 | Semi-static scheduling method and system |
| CN103687029A (en) * | 2013-12-30 | 2014-03-26 | 大唐移动通信设备有限公司 | Resource allocation method and base station |
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