CN107371263B - Method and device for scheduling uplink resources - Google Patents

Method and device for scheduling uplink resources Download PDF

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Publication number
CN107371263B
CN107371263B CN201610317230.XA CN201610317230A CN107371263B CN 107371263 B CN107371263 B CN 107371263B CN 201610317230 A CN201610317230 A CN 201610317230A CN 107371263 B CN107371263 B CN 107371263B
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bsr
terminal
network side
data volume
buffer
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CN107371263A (en
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刘路
袁战忠
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Computer And Data Communications (AREA)

Abstract

The invention provides a method and a device for scheduling uplink resources. Wherein, the method comprises the following steps: the method comprises the steps that network side equipment obtains a BSR type to which a Buffer State Report (BSR) reported by a terminal belongs; the network side equipment acquires the current buffer area data volume of the terminal according to the BSR type to obtain the effective buffer area data volume; the effective buffer area data volume is used for indicating the resource volume of the uplink resource which needs to be allocated to the terminal by the network side equipment; and the network side equipment allocates uplink resources for the terminal according to the data volume of the effective buffer area. By adopting the technical scheme provided by the invention, the problem that the method for allocating the uplink resources of the terminal to the network side equipment according to the BSR type reported by the terminal causes great uplink resource waste is solved, and the effects of improving the accuracy of resource scheduling of the network side equipment and the utilization rate of the uplink resources are further achieved.

Description

Method and device for scheduling uplink resources
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for scheduling uplink resources.
Background
In a communication system, when a terminal needs to upload data, a bandwidth request needs to be sent to a network side device, and five bandwidth request methods are provided in relevant protocols (for example, the DVB-RCS2 protocol of an interactive satellite communication system based on the DVB-RCS2 protocol), which are respectively: fixed rate allocation (CRA), rate-based dynamic capacity Request (RBDC), buffer data delta-based dynamic capacity request (VBDC), buffer data absolute amount-based dynamic capacity request (AVBDC), Free Capacity Allocation (FCA). For the traffic with low real-time performance, VBDC/AVBDC is generally used as the dynamic capacity request method. The VBDC mode is that the terminal reports a buffer data increment report (BSR, BSR is buffer status report) to the network side device, and the AVBDC mode is that the terminal reports an absolute buffer data report (absolute BSR).
In the related technical solution, the network side device may maintain the buffer data volume of each logical channel according to the BSR type reported by the terminal. Specifically, when the incremental BSR reported by the terminal reports 1000 bytes, the network side device allocates 1000 bytes of uplink resources to the terminal according to the incremental BSR; when the absolute BSR reported by the terminal reports 5000 bytes, the network side device also allocates 5000-byte uplink resources to the terminal according to the absolute BSR. Fig. 1 is a flowchart of a scheduling method of uplink resources in the related art.
At time 1 and t0, the data size of the buffer of the terminal is 5000 bytes, and the terminal reports that the absolute BSR is 5000 bytes.
At time t1, the buffer of the terminal receives the data size of 1000 bytes again, and at this time, the data size of the buffer of the terminal is 6000 bytes, and the terminal reports the absolute BSR of 6000 bytes.
At time t2, after the network side device receives 5000 bytes of absolute BSR reported by the terminal at time t0, the buffer data size of the obtained terminal is 5000 bytes. And then, the network side equipment allocates 5000 bytes of uplink resources for the terminal.
At time t3, after the network side device receives 6000 bytes of absolute BSR reported by the terminal at time t1, the buffer data size of the terminal is obtained to be 6000 bytes. Then, the network side device allocates 6000 bytes of uplink resources to the terminal.
And 5, at the time of t4, the terminal receives 5000 bytes of uplink resources allocated by the network side equipment. And 5000 bytes of uplink data are sent to the network side equipment. At this time, the buffer remaining data amount of the terminal is 1000 bytes.
At time t5, the terminal receives 6000 bytes of uplink resources allocated by the network side equipment. At time t4, the remaining data amount of the buffer of the terminal is 1000 bytes, which is insufficient to transmit all uplink data of 6000 bytes of uplink resources allocated to the terminal by the network side device, and therefore, the terminal can transmit only 1000 bytes of uplink data.
As can be seen from the above flow, in the related art, since the network side device may allocate the uplink resource to the terminal according to the BSR type reported by the terminal, when the terminal receives the uplink resource allocated by the network side device, the remaining data amount of the buffer of the terminal may not be enough to support the uplink resource allocated by the network side device. Therefore, the method that the network side device allocates the uplink resource to the terminal according to the BSR type reported by the terminal causes uplink resource waste.
Disclosure of Invention
The embodiment of the invention provides a method and a device for scheduling uplink resources, which are used for at least solving the problem that uplink resources are wasted due to a method that network side equipment allocates the uplink resources to a terminal according to a BSR type reported by the terminal in the related art.
According to an embodiment of the present invention, a method for scheduling uplink resources is provided, including: the method comprises the steps that network side equipment obtains a BSR type to which a Buffer State Report (BSR) reported by a terminal belongs; the network side equipment acquires the current buffer data volume of the terminal according to the BSR type to obtain the effective buffer data volume; the effective buffer data volume is used for indicating the resource volume of the uplink resource which needs to be allocated to the terminal by the network side equipment; and the network side equipment allocates the uplink resource to the terminal according to the data volume of the effective buffer area.
Optionally, when it is determined that the type of the BSR is an absolute BSR, the effective buffer data amount is a difference between an absolute amount of the absolute BSR and the resource amount that has been allocated to the terminal by the network side device but has not yet come into effect, where the absolute amount is used to indicate a buffer data amount corresponding to the absolute BSR.
Optionally, the amount of resources that the network-side device has allocated to the terminal but has not taken effect is: the network side device has already been allocated to the terminal, and when the terminal reports the absolute BSR, the terminal has not received the resource amount of the uplink resource.
Optionally, when the type of the BSR is determined to be an incremental BSR, the effective buffer data amount is a sum of an increment of the incremental BSR and an existing buffer data amount of the terminal; wherein the increment is used to represent the buffer data size corresponding to the increment BSR.
Optionally, the data amount of the existing buffer is: and before the terminal reports the incremental BSR, the network side equipment maintains the data volume of the buffer zone of the terminal.
Optionally, after the network side device allocates the uplink resource to the terminal according to the effective buffer data amount, the method further includes: and updating the data volume of the buffer zone of the terminal maintained by the network side equipment according to the resource volume of the uplink resource.
According to another embodiment of the present invention, an apparatus for scheduling uplink resources is provided, including: the acquisition module is used for receiving the BSR type of the Buffer Status Report (BSR) reported by the acquisition terminal; a processing module, configured to obtain a current buffer data volume of the terminal according to the BSR type, and obtain an effective buffer data volume, where the effective buffer data volume is used to indicate a resource amount of an uplink resource that needs to be allocated to the terminal by the network side device; a distribution module: and the uplink resource is allocated to the terminal according to the data volume of the effective buffer area.
Optionally, when the type of the BSR is determined to be an absolute BSR, the effective buffer data amount is: the absolute amount of the absolute BSR is a difference between the amount of the resources that the allocation module has allocated for the terminal but has not taken effect, wherein the absolute amount is used to represent the amount of buffer data corresponding to the absolute BSR.
Optionally, when it is determined that the type of the BSR is an incremental BSR, the data volume of the effective buffer area is: the sum of the increment BSR and the data quantity of the existing buffer area of the terminal; wherein the delta is used to represent the amount of buffer data corresponding to the delta BSR.
Optionally, the apparatus further comprises: and the updating module is used for updating the buffer data volume of the terminal maintained by the network side equipment according to the resource volume of the uplink resource.
According to still another embodiment of the present invention, there is also provided a storage medium. The storage medium is configured to store program code for performing the steps of: obtaining a BSR type of a Buffer Status Report (BSR) reported by a terminal; acquiring the data volume of the current buffer area of the terminal according to the BSR type to obtain the data volume of an effective buffer area; the effective buffer data volume is used for indicating the resource volume of the uplink resource which needs to be allocated to the terminal by the network side equipment; and allocating the uplink resources to the terminal according to the effective buffer data volume, and updating the buffer data volume of the terminal according to the resource volume of the uplink resources.
Optionally, the storage medium is further arranged to store program code for performing the steps of: when the type of the BSR is determined to be an absolute BSR, the effective buffer data volume is a difference between an absolute volume of the absolute BSR and the resource volume which is allocated to the terminal but is not effective, wherein the absolute volume is used for representing the buffer data volume corresponding to the absolute BSR; when the type of the BSR is determined to be an incremental BSR, the effective buffer data volume is the sum of the increment of the incremental BSR and the existing buffer data volume of the terminal; wherein the delta is used to represent the amount of buffer data corresponding to the delta BSR.
According to the invention, the effective buffer data volume used for indicating the network side equipment to need to allocate the uplink resources to the terminal is used instead of the buffer data volume determined according to the BSR type, so that the problem that the method for allocating the uplink resources to the terminal by the network side equipment according to the terminal requirement causes great uplink resource waste in the related technology can be solved, and the effects of improving the accuracy of network side equipment resource scheduling and the utilization rate of the uplink resources are achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a flowchart of a scheduling method of uplink resources in the related art;
fig. 2 is a block diagram of a hardware structure of a computer terminal according to an embodiment of the present invention;
fig. 3 is a flowchart of a scheduling method of uplink resources according to an embodiment of the present invention;
fig. 4 is a flowchart of another uplink resource scheduling method according to an embodiment of the present invention;
fig. 5 is a flowchart of scenario one of a scheduling method based on uplink resources according to an embodiment of the present invention;
fig. 6 is a flowchart of a second scenario of a scheduling method based on uplink resources according to an embodiment of the present invention;
fig. 7 is a flowchart of scenario three of a scheduling method based on uplink resources according to an embodiment of the present invention;
fig. 8 is a block diagram of an apparatus for scheduling uplink resources according to an embodiment of the present invention;
fig. 9 is a block diagram of another apparatus for uplink resource according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a system for uplink resource according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
For a better understanding of the embodiments of the present application, the terms referred to in the embodiments of the present application are explained below:
absolute BSR: the terminal reports the data volume of the current buffer area;
incremental BSR: and the terminal reports the new data volume of the terminal buffer until the last report increment BSR reaches the current time period.
Example 1
The method provided by the embodiment 1 of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking the operation on a computer terminal as an example, fig. 2 is a block diagram of a hardware structure of the computer terminal of a scheduling method of uplink resources according to an embodiment of the present invention. As shown in fig. 2, the computer terminal 20 may include one or more (only one shown) processors 202 (the processors 202 may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA, etc.), a memory 204 for storing data, and a transmission device 206 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 2 is only an illustration and is not intended to limit the structure of the electronic device. For example, the computer terminal 20 may also include more or fewer components than shown in FIG. 2, or have a different configuration than shown in FIG. 2.
The memory 204 may be configured to store software programs and modules of application software, such as program instructions/modules corresponding to the scheduling method of uplink resources in the embodiment of the present invention, and the processor 202 executes various functional applications and data processing by running the software programs and modules stored in the memory 204, that is, implementing the method described above. Memory 204 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 204 may further include memory located remotely from the processor 202, which may be connected to the computer terminal 20 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission means 206 is used for receiving or sending data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the computer terminal 20. In one example, the transmission device 206 includes a Network adapter (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission device 206 can be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.
In this embodiment, a method operating in the foregoing computer terminal is provided, and fig. 3 is a flowchart of a method for scheduling uplink resources according to an embodiment of the present invention, as shown in fig. 3, the flowchart includes the following steps:
step S302, the network side equipment obtains the BSR type of the buffer status report BSR reported by the terminal.
Optionally, that is, the scheduling method of uplink resources provided in this embodiment of the present application may be applicable to multiple communication systems, for example, communication systems such as LTE, WIFI, and WCDMA, and certainly the same applies to an interactive satellite communication system with a large air interface delay, and for the latter, the network side device includes: a primary station in an interactive satellite communications system based on the DVB-RCS2 protocol; the terminal includes: an end station in an interactive satellite communications system based on the DVB-RCS2 protocol. The BSR types include: incremental BSR and absolute BSR.
Step S304, the network side equipment obtains the current buffer data volume of the terminal according to the BSR type to obtain the effective buffer data volume; the effective buffer data volume is used for indicating the resource volume of the uplink resource which needs to be allocated to the terminal by the network side equipment;
optionally, when it is determined that the type of the BSR is an absolute BSR, the effective buffer data amount is a difference between the absolute amount of the absolute BSR and the resource amount that has been allocated to the terminal by the network side device but has not yet been validated, and specifically, may be calculated by formula 1:
equation 1: data Is effective ＝data Absolute value -data Dispensing ；
Wherein, the data Is effective Data representing the amount of data in the effective buffer Absolute Representing the absolute magnitude of the absolute BSR, and data Dispensing Indicating the amount of buffer data allocated by the network side device for the terminal but not validated.
Wherein the absolute amount of the absolute BSR is used to represent the amount of buffer data (i.e., the amount of data stored in the buffer) corresponding to the absolute BSR. For example, the terminal buffers 2500 bytes of buffer data volume and reports the buffer data volume to the network side device in an absolute BSR manner, and then the absolute BSR is the 2500 bytes of buffer data volume reported to the network side device.
The data volume of the buffer area, which is allocated but not valid by the network side device for the terminal, is used to indicate that the network side device has already allocated to the terminal, and when the terminal reports the absolute BSR, the terminal has not received the resource volume of the uplink resource. For example, the terminal reports the data amount of the buffer of 2500 bytes before reporting the absolute amount of the absolute BSR currently. The network side equipment allocates the resource amount of the uplink resource to the terminal according to the buffer data amount of 2500 bytes reported before. And when the terminal reports the absolute amount of the BSR, the terminal has not received the resource amount of the 2500-byte uplink resource. Then, the resource amount of the 2500-byte uplink resource allocated by the network side device is the buffer data amount that is allocated by the network side device for the terminal but is not in effect.
Optionally, when it is determined that the type of the BSR is an incremental BSR, the effective buffer data amount is a sum of an increment of the incremental BSR and an existing buffer data amount of the terminal, and is calculated by using a formula 2:
equation 2: data Is effective ＝data Increment of +data Has been provided with
Wherein, the data Increment of Delta for representing delta BSR, and data Has been provided with Indicating the amount of buffer data present.
Wherein the increment of the incremental BSR is used for representing the data volume of the buffer zone corresponding to the incremental BSR. For example, when the terminal reports the incremental BSR last time to the current time, the data size of the buffer of the terminal is increased by 2500 bytes, and the incremental BSR is reported to the network side device by the incremental BSR, so that the incremental BSR is the 2500-byte data size of the buffer reported to the network side device.
Wherein, the existing buffer data size is used to indicate the buffer data size of the terminal maintained by the network side device before the terminal reports the incremental BSR. Specifically, if the incremental BSR reported this time is the BSR reported by the terminal for the first time, the data volume of the existing buffer is 0. If the incremental BSR reported this time is not the BSR reported for the first time, the data volume of the existing buffer area is the data volume of the buffer area of the terminal maintained by the network side equipment after the network side equipment allocates the uplink resource to the terminal before the incremental BSR reported this time. For example, the terminal reports the data amount of the buffer region of 2500 bytes before the increment of the incremental BSR is reported currently. After the network side device allocates the 2500 bytes of uplink resources to the terminal, the buffer data size of the terminal maintained by the network side device is 0 byte. Then the amount of existing buffer data is 0 bytes.
Step S306, the network side device allocates the uplink resource to the terminal according to the data size of the effective buffer.
In this embodiment, another method is provided for operating in the foregoing computer terminal or a mobile terminal having a structure similar to that of the foregoing computer terminal, and fig. 4 is a flowchart of another uplink resource scheduling method according to an embodiment of the present invention, where as shown in fig. 4, the flowchart includes, in addition to steps S302-S306 in fig. 3, further includes:
step S402, according to the resource quantity of the uplink resource, updating the buffer data quantity of the terminal maintained by the network side equipment.
Specifically, after allocating the resource amount of the uplink resource, the network side device updates the buffer data amount of the terminal according to formula 3.
Equation 3: data Updating ＝data Is effective -resource Dispensing ；
Wherein, the data Updating Resource due to the amount of buffer data representing the updated terminal maintained by the network side device Dispensing The resource amount of the uplink resource allocated to the terminal by the network side equipment is represented.
Specifically, the updated buffer data size of the terminal is used to indicate whether the network side device uses all buffer data sizes reported by the terminal as uplink resources allocated to the terminal. If the difference is 0, the network side equipment is proved to be capable of distributing uplink resources for all buffer area data reported by the terminal; and if the difference is not 0, it proves that part of the buffer data volume reported by the terminal is not allocated with the uplink resource by the network side equipment. At this time, the network side device may send the resource amount of the uplink resource to the terminal.
In addition, the following 3 scenarios are also provided in the present embodiment to facilitate understanding of the present embodiment. The method comprises the following specific steps:
it should be noted that, in the following scenario, only 2 times of BSR reporting by the terminal is described, and in practical applications, the terminal may also report the BSR to the network side device multiple times.
Scene one:
when the terminal reports the BSR, the buffer size is 6000 bytes. Meanwhile, the report can be performed by using the incremental BSR, and also can be performed by using the absolute BSR. As shown in fig. 5, fig. 5 is a flowchart of a first scenario of a scheduling method based on uplink resources according to an embodiment of the present invention, which specifically includes:
at time 1 and t0, the buffer data size of the terminal is 5000 bytes, and the terminal reports that the absolute BSR is 5000 bytes.
At time t1, the buffer of the terminal receives 1000 bytes of data, the buffer data amount of the terminal is 6000 bytes at this time, and the terminal reports 1000 bytes of incremental BSR.
And 3, at the time t2, after the network side equipment acquires the BSR reported by the terminal at the time t0, determining that the BSR type is an absolute BSR. And acquires the absolute BSR 5000 bytes. Since no other BSR is acquired before the acquisition, the network side device determines that the resource amount of the uplink resource that has been allocated to the terminal but has not been validated is 0. According to the formula 1, the effective buffer data size obtained by the network side device is 5000-0-5000 bytes. Then, the network side device updates the buffer data size of the terminal to 5000 bytes for the terminal and allocates 5000 bytes of uplink resources for the terminal. And finally, updating the data volume of the buffer zone of the terminal maintained by the network side equipment to be 0 according to a formula 3.
At time t3, after acquiring the BSR reported by the terminal at time t1, the network side device determines that the BSR type is an incremental BSR, and acquires an incremental BSR of 1000 bytes, before this reporting, the terminal reports an absolute BSR of 5000 bytes, and the network side device allocates 5000 bytes of uplink resources to the terminal, thereby determining that the data volume of the existing buffer is 0. According to the formula 2, the amount of the valid buffer data obtained by the network side device is 1000 bytes or 0+ 1000. Then, the network side device allocates 1000 bytes of uplink resources to the terminal according to the data volume of the effective buffer. And finally, updating the data volume of the buffer zone of the terminal maintained by the network side equipment to be 0 according to a formula 3.
And 5, at the time of t4, the terminal receives 5000 bytes of uplink resources allocated by the network side equipment. And 5000 bytes of uplink data are sent to the network side equipment. At this time, the buffer remaining data amount of the terminal is 1000 bytes.
And 6, t5, the terminal receives the 1000-byte uplink resource allocated by the network side equipment. And sends the 1000 bytes of uplink data to the network side equipment. At this time, the buffer remaining data amount of the terminal remains 0 bytes.
According to the above process, it can be seen that the remaining data amount of the buffer of the terminal can support the uplink resource allocated to the terminal by the current network side device. Therefore, the uplink resources allocated by the network side device are not wasted.
It should be noted that the remaining data amount of the buffer of the terminal is: and after the terminal sends the uplink data, the data amount of the residual buffer area. For example, the buffer size of the terminal is 6000 bytes. After the terminal currently transmits 2500 bytes of uplink data, the buffer remaining data amount of the terminal is 3500 bytes.
Scene two
It is assumed that the buffer size is 6000 bytes when the terminal reports the BSR. Meanwhile, only absolute BSR can be used for reporting. As shown in fig. 6, fig. 6 is a flowchart of a scenario two of a scheduling method based on uplink resources according to an embodiment of the present invention, which specifically includes:
at time 1 and t0, the buffer data size of the terminal is 5000 bytes, and the terminal reports that the absolute BSR is 5000 bytes.
At time t1, the buffer of the terminal receives the data size of 1000 bytes again, and at this time, the data size of the buffer of the terminal is 6000 bytes, and the terminal reports the absolute BSR of 6000 bytes.
And 3, at the time t2, after the network side equipment acquires the BSR reported by the terminal at the time t0, determining that the BSR type is an absolute BSR. And acquires the absolute BSR 5000 bytes. Since the network side device does not acquire other BSRs before, the network side device determines that the resource amount of the uplink resource that has been allocated to the terminal but is not in effect is 0. According to the formula 1, the effective buffer data size obtained by the network side device is 5000-0-5000 bytes. Then, the network side device updates the buffer data size of the terminal to 5000 bytes for the terminal and allocates 5000 bytes of uplink resources for the terminal. And finally, updating the data volume of the buffer zone of the terminal maintained by the network side equipment to be 0 according to a formula 3.
And at the time t3, after the network side equipment acquires the BSR reported by the terminal at the time t0, determining that the BSR type is an absolute BSR. And acquires the absolute BSR 6000 bytes. Since the terminal at this time has not received the 5000-byte uplink resource allocated at time t0, the amount of the uplink resource that has been allocated to the terminal by the network side device but has not been validated is 5000 bytes. According to the formula 1, the network side device obtains the effective buffer data size of 6000-5000-1000 bytes. Then, the network side device allocates 1000 bytes of uplink resources to the terminal according to the data volume of the effective buffer. And finally, updating the data volume of the buffer zone of the terminal maintained by the network side equipment to be 0 according to a formula 3.
And 5, at the time of t4, the terminal receives 5000 bytes of uplink resources allocated by the network side equipment. And 5000 bytes of uplink data are sent to the network side equipment. At this time, the buffer remaining data amount of the terminal is 1000 bytes.
At time t5, the terminal receives the 1000-byte uplink resource allocated by the network side device. And sends the 1000 bytes of uplink data to the network side equipment. At this time, the buffer remaining data amount of the terminal remains 0 bytes.
According to the above process, it can be seen that the remaining data amount of the buffer of the terminal can support the uplink resource allocated to the terminal by the current network side device. Therefore, the uplink resources allocated by the network side device are not wasted.
Scene three
When the terminal reports the BSR, the terminal can only report the BSR by using the absolute BSR. As shown in fig. 7, fig. 7 is a flowchart of a scenario three of a scheduling method based on uplink resources according to an embodiment of the present invention, which specifically includes:
at time 1 and t0, the data size of the buffer of the terminal is 5000 bytes, and the terminal reports that the absolute BSR is 5000 bytes.
And 2, at the time t1, after the network side equipment receives the BSR reported by the terminal at the time t0, determining that the BSR type is an absolute BSR. And acquires absolute BSR of 5000 bytes. Since no other BSR is acquired before the acquisition, the network side device determines that the resource amount of the uplink resource that has been allocated to the terminal but has not been validated is 0. According to the formula 1, the effective buffer data size obtained by the network side device is 5000-0-5000 bytes. Then, the network side device updates the buffer data size of the terminal to 5000 bytes for the terminal and allocates 5000-byte uplink resources for the terminal. And finally, updating the data volume of the buffer zone of the terminal maintained by the network side equipment to be 0 according to a formula 3.
And 3, t2, the terminal receives 5000 bytes of uplink resources allocated by the network side equipment. And 5000 bytes of uplink data is sent to the network side equipment. Since the terminal uses an independent buffer when reporting the BSR, the remaining data amount of the buffer of the terminal at this time is 0 byte left.
At time t3, the buffer of the terminal receives 1000 bytes of data, and at this time, the buffer of the terminal has 1000 bytes of data, and the terminal reports 1000 bytes of absolute BSR.
And at the time t4, after receiving the BSR reported by the terminal at the time t0, the network side equipment determines that the BSR type is an absolute BSR. And acquires the absolute BSR 1000 bytes. Since the terminal uses an independent buffer when reporting the BSR, it can be considered that the network side device does not acquire other BSRs before that. According to formula 1, the network side device obtains an effective buffer data size of 1000-0 or 1000 bytes. And then, the network side equipment allocates 1000 bytes of uplink resources to the terminal according to the data volume of the effective buffer area. Finally, according to the formula 3, the data size of the buffer area of the terminal maintained by the equipment at the network side is updated to be 0
And 6, t5, the terminal receives the 1000-byte uplink resource allocated by the network side equipment. And sends the 1000 bytes of upstream data to the network side device. Since the terminal uses an independent buffer when reporting the BSR, the remaining data amount of the buffer of the terminal at this time is 0 byte left.
According to the above process, it can be seen that the remaining data amount of the buffer of the terminal can support the uplink resource allocated to the terminal by the current network side device. Therefore, the uplink resource allocated by the network side device is not wasted.
It should be noted that the above 3 scenarios are only listed, but not exhaustive. For example, in scenario one, the incremental BSR may be reported first, and then the absolute BSR may be reported; in a third scenario, before the terminal receives the uplink resource allocated by the network side device, the network side device obtains the buffer data size newly reported by the terminal. Therefore, any scenario based on the above-mentioned idea of the present implementation should fall within the scope of the present implementation.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention or portions thereof contributing to the related art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (such as a ROM/RAM, a magnetic disk, and an optical disk), and includes several instructions for enabling a terminal device (which may be a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
Example 2
In this embodiment, a device for scheduling uplink resources is further provided, where the device is used to implement the foregoing embodiments and preferred embodiments, and details of the foregoing description are omitted for brevity. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 8 is a block diagram of an apparatus for scheduling uplink resources according to an embodiment of the present invention, and as shown in fig. 8, the apparatus is located in a network side device, and includes: an acquisition module 82, a processing module 84, and a distribution module 86. Wherein:
the obtaining module 82 is configured to receive a BSR type to which a buffer status report BSR reported by the obtaining terminal belongs.
Optionally, the network side device includes: a primary station in an interactive satellite communications system based on the DVB-RCS2 protocol; the terminal includes: an end station in an interactive satellite communications system based on the DVB-RCS2 protocol. Of course, the network side device and the terminal in other communication systems, such as LTE, WIFI, WCDMA, etc., are also applicable.
The processing module 84 obtains the current buffer data size of the terminal according to the BSR type, to obtain an effective buffer data size, where the effective buffer data size is used to indicate a resource size of an uplink resource that needs to be allocated to the terminal by the network side device.
Optionally, when it is determined that the type of the BSR is an absolute BSR, the effective buffer data amount is a difference between the absolute amount of the absolute BSR and the resource amount that has been allocated to the terminal by the network side device but is not in effect, and is calculated by using formula 1:
equation 1: data Is effective ＝data Absolute -data Dispensing
Wherein, the data Is effective Data representing the amount of data in the effective buffer Absolute value Representing the absolute magnitude of the absolute BSR, and data Dispensing Indicating the amount of buffer data allocated by the allocation module 86 for the terminal but not validated.
Wherein the absolute amount of the absolute BSR is used to represent the buffer data amount corresponding to the absolute BSR. For example, the terminal buffers 2500 bytes of buffer data volume and reports the buffer data volume to the network side device in an absolute BSR manner, and then the absolute BSR is the 2500 bytes of buffer data volume reported to the network side device.
The buffer data amount allocated but not validated by the allocation module 86 for the terminal is used to indicate the resource amount of the uplink resource that has not been received by the terminal when the allocation module 86 has already allocated to the terminal and the terminal reports the absolute BSR. For example, the terminal reports the data amount of the buffer of 2500 bytes before reporting the absolute amount of the absolute BSR currently. The allocating module 86 allocates the resource amount of the uplink resource to the terminal according to the previously reported data amount of the buffer with 2500 bytes. And when the terminal reports the absolute amount of the BSR, the terminal has not received the resource amount of the 2500-byte uplink resource. Then, the resource amount of the 2500-byte uplink resource allocated by the allocation module 86 is the data amount of the buffer that is allocated to the terminal by the network side device but is not in effect.
Optionally, when it is determined that the type of the BSR is an incremental BSR, the effective buffer data amount is a sum of an increment of the incremental BSR and an existing buffer data amount of the terminal, and is calculated by a formula 2:
equation 2: data Is effective ＝data Increment of +data Have been provided with
Wherein, the data Increment of Delta for representing delta BSR, and data Has been provided with Indicating the amount of buffer data present.
Wherein the increment of the incremental BSR is used for representing the data volume of the buffer zone corresponding to the incremental BSR. For example, when the terminal reports the incremental BSR last time to the current time, the data size of the buffer of the terminal is increased by 2500 bytes, and the incremental BSR is reported to the network side device by the incremental BSR, so that the incremental BSR is the 2500-byte data size of the buffer reported to the network side device.
Wherein the existing buffer data volume is used to represent the buffer data volume of the terminal maintained by the network side device before the terminal reports the incremental BSR. Specifically, if the incremental BSR reported this time is the BSR reported by the terminal for the first time, the data volume of the existing buffer is 0. If the incremental BSR reported this time is not the BSR reported for the first time, the data volume of the existing buffer area is the data volume of the buffer area of the terminal maintained by the network side device after the allocation module 86 allocates the uplink resource to the terminal before the incremental BSR reported this time. For example, the terminal reports the data amount of the buffer region of 2500 bytes before the increment of the incremental BSR is reported currently. After the network side device allocates the 2500 bytes of uplink resources to the terminal, the buffer data size of the terminal maintained by the network side device is 0 byte. Then the amount of existing buffer data is 0 bytes.
The assignment module 86: and the uplink resource is allocated to the terminal according to the data volume of the effective buffer area.
In this embodiment, another apparatus operating on the computer terminal is provided, and fig. 9 is a block diagram of a structure of another apparatus for scheduling uplink resources according to an embodiment of the present invention, as shown in fig. 9, the apparatus may further include, in addition to all modules in fig. 8: and an update module 92.
And an updating module 92, connected to the buffer data size of the terminal maintained by the network side device, for updating according to the resource size of the uplink resource.
Specifically, after the allocating module 86 allocates the resource amount of the uplink resource, the updating module 92 updates the buffer data amount of the terminal maintained by the network side device according to formula 3.
Equation 3: data Updating ＝data Is effective -resource Dispensing ；
Wherein, the data Updating Resource due to the amount of buffer data representing the updated terminal maintained by the network-side device Dispensing The resource amount is used for indicating the uplink resource amount allocated to the terminal by the network side equipment.
Optionally, the updated buffer data size of the terminal is used to indicate whether the allocation module 86 uses all buffer data sizes reported by the terminal as the uplink resource allocated to the terminal. If the difference is 0, it proves that the allocating module 86 can allocate uplink resources to all buffer data volumes reported by the terminal; if the difference is not 0, it is verified that some of the buffer data reported by the terminals are not allocated with uplink resources by the allocation module 86. At this time, the updating module 92 sends the allocated uplink resource to the terminal.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are located in different processors in any combination.
Example 3
In this embodiment, a system for scheduling uplink resources is further provided, where the system is used to implement the foregoing embodiments and preferred embodiments, and details are not repeated for what has been described. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 10 is a schematic structural diagram of a system 100 for scheduling uplink resources according to an embodiment of the present invention, and as shown in fig. 10, the system 100 includes: a network side device 1002 and a terminal 1004. Meanwhile, the terminal 1004 in the system can perform information interaction with the network side device.
The network side device 1002 is configured to obtain a BSR type to which a BSR reported by the terminal 1004 belongs; obtaining the current buffer data volume of the terminal 1004 according to the BSR type to obtain an effective buffer data volume; wherein, the effective buffer data amount is used to indicate the resource amount of the uplink resource that the network side device 1002 needs to allocate to the terminal 1004; and allocating the uplink resource to the terminal 1004 according to the data amount of the effective buffer area.
Optionally, when it is determined that the type of the BSR is an absolute BSR, the effective buffer data amount is a difference between the absolute amount of the absolute BSR and the resource amount that has been allocated to the terminal by the network side device but is not in effect, and is calculated by using formula 1:
equation 1: data Is effective ＝data Absolute -data Dispensing ；
Wherein, the data Is effective Data representing the amount of data in the effective buffer Absolute Representing the absolute magnitude of the absolute BSR, and data Dispensing Indicating the amount of buffer data allocated by the network side device for the terminal but not validated.
Wherein the absolute amount of the absolute BSR is used to represent the amount of buffer data corresponding to the absolute BSR. For example, the terminal 1004 buffers the buffer data amount of 2500 bytes and reports the buffer data amount to the network side device 1002 in the absolute BSR manner, so that the absolute BSR is the buffer data amount of 2500 bytes reported to the network side device 1002.
The data amount of the buffer area allocated but not validated by the network side device to the terminal 1004 is used to indicate that the network side device 1002 has already allocated to the terminal 1004, and when the terminal 1004 reports the absolute BSR, the terminal 1004 has not received the resource amount of the uplink resource. For example, the terminal 1004 reports the buffer data size of 2500 bytes before the absolute size of the absolute BSR is currently reported. The network side device 1002 may allocate the resource amount of the uplink resource to the terminal 1004 according to the buffer data amount of 2500 bytes reported before. When the network side device 1002 receives the absolute amount of the BSR, the terminal 1004 does not receive the resource amount of the uplink resource of 2500 bytes. Then, the resource amount of the 2500-byte uplink resource allocated by the network side device 1002 is the buffer data amount allocated by the network side device 1002 for the terminal 1004 but not validated.
Optionally, when it is determined that the type of the BSR is an incremental BSR, the effective buffer data amount is a sum of an increment of the incremental BSR and an existing buffer data amount of the terminal, and is calculated by using a formula 2:
equation 2: data Is effective ＝data Increment of +data Have been provided with
Wherein, the data Increment of Delta for representing delta BSR, and data Have been provided with Indicating the amount of buffer data present.
Wherein the increment of the incremental BSR is used for representing the data volume of the buffer zone corresponding to the incremental BSR. For example, when the terminal 1004 reports the incremental BSR last time to the current time, the data size of the terminal buffer increases by 2500 bytes and is reported to the network side device 1002 in the incremental BSR manner, and then the increment of the incremental BSR is the data size of the buffer of 2500 bytes that is reported to the network side device 1002.
The existing buffer data volume is used to represent the buffer data volume of the terminal 1004 maintained by the network side device 1002 before the terminal 1004 reports the incremental BSR. Specifically, if the incremental BSR reported this time is the BSR reported by the terminal 1004 for the first time, the data volume of the existing buffer is 0. If the current report of the incremental BSR is not the first report of the BSR, the existing buffer data volume is the buffer data volume of the terminal 1004 maintained by the network side device 1002 after the network side device 1002 allocates the uplink resource to the terminal 1004 before the current report of the incremental BSR. For example, the terminal 1004 reports the buffer data size of 2500 bytes before the increment of the incremental BSR is currently reported. After the network side device 1002 allocates the 2500 bytes of uplink resources to the terminal 1004, the buffer data size of the terminal 1004 maintained by the network side device 1002 is 0 byte. Then the amount of existing buffer data is 0 bytes.
A terminal 1004 that reports the BSR type to which the BSR belongs to the network side device 1002; and transmitting data according to the uplink resources.
Optionally, after receiving the uplink resource allocated by the network side device 1002, the terminal 1004 updates the remaining data amount of the buffer accordingly.
It should be noted that the remaining data amount of the buffer of the terminal 1004 is: the terminal 1004 transmits the uplink data, and then, the remaining amount of buffer data. For example, the buffer size of terminal 1004 is 6000 bytes. After terminal 1004 transmits 2500 bytes of uplink data at present, the buffer remaining data amount of terminal 1004 is 3500 bytes.
Optionally, the network side device 1002 includes: a primary station in an interactive satellite communication system based on the DVB-RCS2 protocol; the terminal 1004 includes: an end station in an interactive satellite communications system based on the DVB-RCS2 protocol. Of course, the network side device 1002 and the terminal 1004 in other communication systems, for example, other communication systems such as LTE, WIFI, WCDMA, etc., are also applicable.
Example 4
The embodiment of the invention also provides a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:
s11, obtaining the BSR type of the buffer status report BSR reported by the terminal;
s12, obtaining the current buffer data volume of the terminal according to the BSR type to obtain the effective buffer data volume; the effective buffer data volume is used for indicating the resource volume of the uplink resource which needs to be allocated to the terminal by the network side equipment;
s13, allocating the uplink resource to the terminal according to the effective buffer data volume.
Optionally, the storage medium is further arranged to store program code for performing the steps of:
s21, when it is determined that the type of the BSR is an absolute BSR, the effective buffer data amount is a difference between the absolute amount of the absolute BSR and the resource amount that has been allocated to the terminal by the network side device but has not yet come into effect;
s22, when it is determined that the BSR type is an incremental BSR, the effective buffer data size is a sum of an increment of the incremental BSR and an existing buffer data size of the terminal.
Optionally, in this embodiment, the storage medium may include but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Optionally, for a specific example in this embodiment, reference may be made to the examples described in the above embodiment and optional implementation, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A method for scheduling uplink resources is characterized by comprising the following steps:
the method comprises the steps that network side equipment obtains a BSR type to which a Buffer State Report (BSR) reported by a terminal belongs;
the network side equipment acquires the current buffer data volume of the terminal according to the BSR type to obtain the effective buffer data volume; the effective buffer data volume is used for indicating the resource volume of the uplink resource which needs to be allocated to the terminal by the network side equipment;
the network side equipment allocates the uplink resource to the terminal according to the data volume of the effective buffer area;
the network side device obtains the current buffer data volume of the terminal according to the BSR type, and obtaining the effective buffer data volume includes:
when the type of the BSR is determined to be an absolute BSR, the effective buffer data volume is a difference between an absolute volume of the absolute BSR and a resource volume which has been allocated to the terminal by the network side device but is not effective, wherein the absolute volume is used for representing the buffer data volume corresponding to the absolute BSR;
when the type of the BSR is determined to be an incremental BSR, the effective buffer data volume is the sum of the increment of the incremental BSR and the existing buffer data volume of the terminal; wherein the delta is used to represent the amount of buffer data corresponding to the delta BSR.
2. The method according to claim 1, wherein the amount of resources that the network-side device has allocated to the terminal but has not taken effect is: the network side device has already been allocated to the terminal, and when the terminal reports the absolute BSR, the terminal has not yet received the resource amount of the uplink resource.
3. The method of claim 1, wherein the amount of data in the existing buffer is: and before the terminal reports the incremental BSR, the network side equipment maintains the data volume of the buffer zone of the terminal.
4. The method according to any one of claims 1 to 3, further comprising, after the network-side device allocates the uplink resource to the terminal according to the effective buffer data amount:
and updating the data volume of the buffer zone of the terminal maintained by the network side equipment according to the resource volume of the uplink resource.
5. The method according to any one of claims 1 to 3, wherein the network-side device comprises: a primary station in an interactive satellite communication system based on the DVB-RCS2 protocol; the terminal includes: an end station in an interactive satellite communication system based on the DVB-RCS2 protocol.
6. An uplink resource scheduling apparatus, located in a network side device, includes:
the acquisition module is used for receiving the BSR type of the Buffer Status Report (BSR) reported by the acquisition terminal;
a processing module, configured to obtain a current buffer data volume of the terminal according to the BSR type, to obtain an effective buffer data volume, where the effective buffer data volume is used to indicate a resource amount of an uplink resource that needs to be allocated to the terminal by the network side device, and when the BSR type is determined to be an absolute BSR, the effective buffer data volume is: the absolute amount of the absolute BSR is different from the amount of resources that have been allocated to the terminal by the allocation module but are not in effect, where the absolute amount is used to represent a buffer data amount corresponding to the absolute BSR, and when it is determined that the type of the BSR is an incremental BSR, the effective buffer data amount is: the sum of the increment BSR and the data quantity of the existing buffer area of the terminal; wherein the delta is used to represent a buffer data volume corresponding to the delta BSR;
a distribution module: and the uplink resource is allocated to the terminal according to the data volume of the effective buffer area.
7. The apparatus of claim 6, further comprising:
and the updating module is used for updating the buffer data volume of the terminal maintained by the network side equipment according to the resource volume of the uplink resource.
8. A system for scheduling uplink resources, comprising: network side equipment and a terminal;
the network side equipment is used for acquiring a BSR type to which a Buffer Status Report (BSR) reported by a terminal belongs; acquiring the data volume of the current buffer area of the terminal according to the BSR type to obtain the data volume of an effective buffer area; the effective buffer data volume is used for indicating the resource volume of the uplink resource which needs to be allocated to the terminal by the network side equipment; and allocating the uplink resource to the terminal according to the effective buffer data volume, where when it is determined that the type of the BSR is an absolute BSR, the effective buffer data volume is a difference between an absolute volume of the absolute BSR and a resource volume that has been allocated to the terminal by the network-side device but has not yet come into effect, where the absolute volume is used to represent a buffer data volume corresponding to the absolute BSR, and when it is determined that the type of the BSR is an incremental BSR, the effective buffer data volume is a sum of an increment of the incremental BSR and an existing buffer data volume of the terminal; wherein the delta is used to represent a buffer data volume corresponding to the delta BSR;
the terminal is used for reporting the BSR type to which the BSR belongs to the network side equipment; and carrying out data transmission according to the uplink resources.
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