CN114430554A - Communication control method, apparatus and computer-readable storage medium - Google Patents
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- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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Abstract
The invention discloses a communication control method, a communication control device and a computer readable storage medium, and relates to the field of wireless communication. The communication control method comprises the following steps: a base station acquires a target resource scheduling request for LTE (Long term evolution) sent by a terminal, wherein the target resource of LTE configured by the base station occupies a first frequency domain bandwidth, the target resource of NR configured by the base station occupies a second frequency domain bandwidth, and the first frequency domain bandwidth and the second frequency domain bandwidth are overlapped on a frequency domain; under the condition that a subframe corresponding to the target resource scheduling request has NR target resources to be sent, the base station calculates the target resources available to the terminal; under the condition that the target resources available for the terminal are distributed in the second frequency domain bandwidth, if the common target resources are not completely occupied, the base station uses the common target resources in the subframe to schedule the target resources for the terminal; and under the condition that the target resources available to the terminal are not distributed in the second frequency domain bandwidth, the base station uses the target resources available to the terminal in the subframe to schedule the target resources for the terminal.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a communication control method, apparatus, and computer-readable storage medium.
Background
Since the current 5G terminal does not support the PDSCH (Physical Downlink Shared Channel) resource allocation Type B (Type B) mode, the 5G PDCCH (Physical Downlink Control Channel) can only be configured in the first 3 symbols of each slot (slot). In an LTE network with 20M bandwidth, the PDCCH can be distributed in only the first 3 symbols of each slot. Therefore, in 4G and 5G dynamic spectrum sharing techniques, the 5G PDCCH and the LTE PDCCH can only use the first 3 symbols of each slot.
In the related art, the LTE PDCCH is distributed at full bandwidth, and thus the 5G PDCCH and the 4G PDCCH are time division multiplexed. For example, the 4G PDCCH occupies the first 2 symbols, and the 5G PDCCH occupies the 3 rd symbol. Thus, the 4G user cannot use the frequency domain resources occupied by the 5G PDCCH. At the initial stage of 5G commercial use, the frequency domain resources occupied by the 4G PDCCH are much larger than those occupied by the 5G PDSCH, so that the frequency spectrum resources cannot be completely shared, and the user experience is affected.
Disclosure of Invention
The embodiment of the invention aims to solve the technical problem that: how to improve the utilization rate of network resources to improve user experience.
According to a first aspect of some embodiments of the present invention, there is provided a communication control method, including: a base station acquires a target resource scheduling request for LTE (Long term evolution) sent by a terminal, wherein the target resource of LTE configured by the base station occupies a first frequency domain bandwidth, the target resource of NR configured by the base station occupies a second frequency domain bandwidth, and the first frequency domain bandwidth and the second frequency domain bandwidth are overlapped on a frequency domain; under the condition that a subframe corresponding to the target resource scheduling request has NR target resources to be sent, the base station calculates the target resources available to the terminal; under the condition that the target resources available for the terminal are distributed in the second frequency domain bandwidth, if the common target resources are not completely occupied, the base station uses the common target resources in the subframe to schedule the target resources for the terminal; and under the condition that the target resources available to the terminal are not distributed in the second frequency domain bandwidth, the base station uses the target resources available to the terminal in the subframe to schedule the target resources for the terminal.
In some embodiments, the target resource is a control channel resource.
In some embodiments, the target resource is PDCCH.
In some embodiments, the base station calculating the target resource available to the terminal includes: a base station calculates the maximum CCE index identification in a Special UE PDCCH of a terminal; and the base station calculates the corresponding REG according to the largest CCE index identifier as the target resource available for the terminal.
In some embodiments, the Common target resource is a Common PDCCH.
In some embodiments, the time domain resource occupied by the target resource of LTE configured by the base station overlaps with the time domain resource occupied by the target resource of NR configured.
In some embodiments, the communication control method further comprises: and under the condition that the target resources available for the terminal are distributed in the second frequency domain bandwidth, if all the common target resources are occupied, the base station does not schedule the target resources in the subframe.
According to a second aspect of some embodiments of the present invention, there is provided a communication control apparatus comprising: the request acquisition module is configured to acquire a target resource scheduling request for LTE, which is sent by a terminal, wherein a target resource of LTE configured by a base station occupies a first frequency domain bandwidth, a target resource of NR configured by the base station occupies a second frequency domain bandwidth, and the first frequency domain bandwidth and the second frequency domain bandwidth are overlapped on a frequency domain; the available resource calculating module is configured to calculate the available target resource of the terminal under the condition that the subframe corresponding to the target resource scheduling request has NR target resource to be transmitted; a scheduling module configured to use the common target resource for scheduling the target resource for the terminal in the subframe if the common target resource is not fully occupied under the condition that the target resource available to the terminal is distributed in the second frequency domain bandwidth; and under the condition that the target resources available to the terminal are not distributed in the second frequency domain bandwidth, scheduling the target resources for the terminal by using the target resources available to the terminal in the subframe.
In some embodiments, the target resource is PDCCH, and the available resource calculation module is further configured to: calculating the maximum CCE index identification in a Special PDCCH of a terminal dedicated UE of the terminal; and calculating the corresponding REG according to the largest CCE index identifier as a target resource available for the terminal.
In some embodiments, the available resources calculation module is further configured to, in case the target resources available to the terminal are distributed within the second frequency domain bandwidth, not schedule the target resources at the sub-frame if all the common target resources are occupied.
According to a third aspect of some embodiments of the present invention, there is provided a communication control apparatus comprising: a memory; and a processor coupled to the memory, the processor configured to perform any of the aforementioned communication control methods based on instructions stored in the memory.
According to a fourth aspect of some embodiments of the present invention, there is provided a computer-readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements any one of the aforementioned communication control methods.
Some embodiments of the above invention have the following advantages or benefits. When a terminal requests to schedule target resources of LTE, a base station dynamically determines actually scheduled resources according to the resources available to the terminal and the resource allocation conditions of 4G and 5G in corresponding subframes, so that dynamic sharing of network resources is fully realized, the utilization rate of the network resources is improved, user experience is also improved, and the problem of reduction of 4G user experience in a dynamic spectrum scene is particularly solved.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 illustrates a flow diagram of a communication control method according to some embodiments of the invention.
Fig. 2 is a flow diagram illustrating a communication control method according to further embodiments of the present invention.
Fig. 3 illustrates a schematic structural diagram of a communication control apparatus according to some embodiments of the present invention.
Fig. 4 shows a schematic configuration of a communication control apparatus according to further embodiments of the present invention.
Fig. 5 shows a schematic structural diagram of a communication control apparatus according to further embodiments of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 illustrates a flow diagram of a communication control method according to some embodiments of the invention. As shown in fig. 1, the communication control method of this embodiment includes steps S102 to S108.
In step S102, the base station obtains a target resource scheduling request for LTE sent by the terminal, where a target resource of LTE configured by the base station occupies a first frequency domain bandwidth, a target resource of NR configured by the base station occupies a second frequency domain bandwidth, and the first frequency domain bandwidth and the second frequency domain bandwidth are overlapped in a frequency domain. Thus, the base station can realize the dynamic spectrum sharing of 4G and 5G.
In some embodiments, the time domain resource occupied by the target resource of LTE configured by the base station overlaps with the time domain resource occupied by the target resource of NR configured. Therefore, the target resources of LTE and NR are not used in a time division multiplexing mode, but the control mode of the invention is used for scheduling the resources, so that the use experience of the 4G user is further improved.
In some embodiments, the target resource is a control channel resource.
In some embodiments, the target resource is PDCCH.
In step S104, the base station calculates the target resource available to the terminal when the subframe corresponding to the target resource scheduling request has NR target resource to transmit.
In some embodiments, when the target resource is PDCCH, the base station calculates the target resource available to the terminal by: firstly, a base station calculates a largest CCE (Control Channel Element) index identifier in a Special PDCCH of a terminal-specific UE of a terminal; then, the base station calculates a corresponding REG (Resource Element Group) as a target Resource available to the terminal according to the largest CCE index identifier.
One REG includes 4 consecutive unoccupied REs (Resource elements), each CCE consisting of 9 REGs. By determining the largest CCE index identifier, the number of CCEs can be determined, and the coverage of REGs can be determined, thereby also obtaining the coverage of REs available to the terminal.
In some embodiments, the PDCCH starting position of the terminal is determined according to the identity of the terminal, the subframe number and the CCE total resource, and then based on the starting position, the terminal is allocated CCEs within a segment of continuous CCE space, the size of which is determined according to the size of the CCEs. Thus, after determining the CCEs allocated for the terminal, the largest CCE index identity may be determined.
In step S106, if the common target resource is not fully occupied under the condition that the target resource available to the terminal is distributed in the second frequency domain bandwidth, the base station uses the common target resource in the subframe to schedule the target resource for the terminal.
Thus, when the resources available to the terminal collide with the target resources of the NR in the frequency domain, scheduling is performed using the common target resources.
In some embodiments, the Common target resource is a Common PDCCH.
In step S108, in case that the target resources available to the terminal are not distributed within the second frequency domain bandwidth, the base station schedules the target resources for the terminal using the target resources available to the terminal in a subframe.
Thus, when the resources available to the terminal do not conflict with the target resources of the NR in the frequency domain, the resources available to the terminal can be normally used for scheduling.
The above embodiments propose a method capable of flexibly allocating target resources. In this embodiment, the base station performs dynamic spectrum sharing between 4G and 5G, and performs frequency division multiplexing on target resources of 4G and 5G. When a terminal requests to schedule target resources of LTE, a base station dynamically determines actually scheduled resources according to the resources available to the terminal and the resource allocation conditions of 4G and 5G in corresponding subframes, so that dynamic sharing of network resources is fully realized, the utilization rate of the network resources is improved, user experience is also improved, and the problem of reduction of 4G user experience in a dynamic spectrum scene is particularly solved.
Fig. 2 is a flow diagram illustrating a communication control method according to further embodiments of the present invention. As shown in fig. 2, the communication control method of this embodiment includes steps S202 to S218.
In this embodiment, let the LTE network bandwidth of the base station be n, and the NR network bandwidth be m. The frequency domain bandwidth of LTE target resources (such as LTE PDCCH) configured by a network is l, l belongs to n, l starts from the lowest frequency of n, and the LTE occupies 3 symbols in the 1 st to 3 rd symbols in the time domain; the bandwidth of the frequency domain of the NR target resource (such as NR PDCCH) configured by the network is k, and k is larger than m, l and k are overlapped on the frequency domain, and NR occupies 2 nd and 3 rd symbols in the time domain.
In step S202, the base station obtains a target resource scheduling request for LTE sent by the terminal, where the target resource scheduling request indicates that the terminal needs to use a target resource of LTE in subframe j.
In step S204, the base station determines whether there is a target resource of NR to be transmitted in subframe j. If not, go to step S206; if so, step S208 is performed.
In step S206, the base station schedules the target resources of LTE by default. That is, when the target resource of LTE to be scheduled does not conflict with the target resource of NR, the resource may be scheduled in a conventional manner.
In step S208, the base station calculates a target resource available to the terminal. For example, for a PDCCH, the largest CCE Index in the UE Special PDCCH is calculated, and then the corresponding REG is calculated.
In step S210, it is determined whether the target resources available to the terminal are distributed within k. If yes, go to step S212; if not, step S218 is performed.
In step S212, it is determined whether or not the common target resource is fully occupied. If yes, go to step S214; if not, step S216 is performed.
In step S214, the base station does not schedule the target resource in the subframe j. That is, the base station stores user data corresponding to the terminal in the buffer, and does not perform scheduling for a while in subframe j.
In step S216, the base station uses the common target resource in the subframe j to schedule the target resource for the terminal.
In step S218, the base station schedules a target resource for the terminal using the target resource available to the terminal in subframe j. For example, the UE Special PDCCH is used to schedule resources for the user terminal in subframe j.
By the method of the embodiment, the base station can dynamically determine the actually scheduled resources according to the available resources of the terminal, the resource allocation conditions of the 4G and the 5G in the corresponding sub-frames and the use condition of the common target resource, thereby fully realizing the dynamic sharing of the network resources, improving the utilization rate of the network resources, improving the user experience, and particularly overcoming the problem of the reduction of the 4G user experience in the dynamic spectrum scene.
An embodiment of the communication control apparatus of the present invention is described below with reference to fig. 3.
Fig. 3 illustrates a schematic structural diagram of a communication control apparatus according to some embodiments of the present invention. As shown in fig. 3, the communication control apparatus 30 of this embodiment includes: a request obtaining module 310, configured to obtain a target resource scheduling request for LTE sent by a terminal, where a target resource of LTE configured by a base station occupies a first frequency domain bandwidth, a target resource of NR configured by the base station occupies a second frequency domain bandwidth, and the first frequency domain bandwidth and the second frequency domain bandwidth are overlapped in a frequency domain; an available resource calculation module 320 configured to calculate a target resource available to the terminal when a subframe corresponding to the target resource scheduling request has an NR target resource to be transmitted; a scheduling module 330, configured to, if the target resources available to the terminal are distributed in the second frequency domain bandwidth, use the common target resources in the subframe to schedule the target resources for the terminal if the common target resources are not fully occupied; and under the condition that the target resources available to the terminal are not distributed in the second frequency domain bandwidth, scheduling the target resources for the terminal by using the target resources available to the terminal in the subframe.
In some embodiments, the target resource is a control channel resource.
In some embodiments, the target resource is PDCCH.
In some embodiments, the Common target resource is a Common PDCCH.
In some embodiments, the time domain resource occupied by the target resource of LTE configured by the base station overlaps with the time domain resource occupied by the target resource of NR configured.
In some embodiments, the target resource is PDCCH, and the available resource calculation module 320 is further configured to: calculating the maximum CCE index identification in a Special PDCCH of a terminal dedicated UE of the terminal; and calculating the corresponding REG according to the largest CCE index identifier as a target resource available for the terminal.
In some embodiments, the available resources calculation module 320 is further configured to, in case the target resources available to the terminal are distributed within the second frequency domain bandwidth, not schedule the target resources in the sub-frame if all the common target resources are occupied.
Fig. 4 shows a schematic configuration of a communication control apparatus according to further embodiments of the present invention. As shown in fig. 4, the communication control apparatus 40 of this embodiment includes: a memory 410 and a processor 420 coupled to the memory 410, the processor 420 being configured to execute the communication control method of any of the preceding embodiments based on instructions stored in the memory 410.
Fig. 5 shows a schematic structural diagram of a communication control apparatus according to further embodiments of the present invention. As shown in fig. 5, the communication control apparatus 50 of this embodiment includes: the memory 510 and the processor 520 may further include an input/output interface 530, a network interface 540, a storage interface 550, and the like. These interfaces 530, 540, 550 and the connections between the memory 510 and the processor 520 may be, for example, via a bus 560. The input/output interface 530 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 540 provides a connection interface for various networking devices. The storage interface 550 provides a connection interface for external storage devices such as an SD card and a usb disk.
An embodiment of the present invention also provides a computer-readable storage medium on which a computer program is stored, wherein the program is configured to implement any one of the aforementioned communication control methods when executed by a processor.
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 non-transitory storage media (including, but not limited to, disk storage, CD-ROM, 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.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (12)
1. A communication control method, comprising:
a base station acquires a target resource scheduling request for Long Term Evolution (LTE) sent by a terminal, wherein the LTE target resource configured by the base station occupies a first frequency domain bandwidth, the new air interface (NR) target resource configured by the base station occupies a second frequency domain bandwidth, and the first frequency domain bandwidth and the second frequency domain bandwidth are overlapped on a frequency domain;
under the condition that a subframe corresponding to the target resource scheduling request has NR target resources to be sent, the base station calculates the target resources available for the terminal;
under the condition that the target resources available for the terminal are distributed in a second frequency domain bandwidth, if the common target resources are not completely occupied, the base station uses the common target resources to schedule the target resources for the terminal in the subframe;
and under the condition that the target resources available for the terminal are not distributed in a second frequency domain bandwidth, the base station uses the target resources available for the terminal to schedule the target resources for the terminal in the subframe.
2. The communication control method of claim 1, wherein the target resource is a control channel resource.
3. The communication control method according to claim 2, wherein the target resource is a Physical Downlink Control Channel (PDCCH).
4. The communication control method according to claim 3, wherein the base station calculating the target resource available to the terminal includes:
the base station calculates the largest CCE index identification in the Special PDCCH of the terminal Special UE of the terminal;
and the base station calculates the corresponding REG according to the maximum CCE index identifier and takes the corresponding REG as the target resource available for the terminal.
5. The communication control method of claim 3, wherein the Common target resource is a Common PDCCH.
6. The communication control method according to any one of claims 1 to 5, wherein a time domain resource occupied by a target resource of LTE configured by the base station overlaps with a time domain resource occupied by a target resource of NR configured by the base station.
7. The communication control method according to any one of claims 1 to 5, further comprising:
and under the condition that the target resources available for the terminal are distributed in the second frequency domain bandwidth, if all the common target resources are occupied, the base station does not schedule the target resources in the subframe.
8. A communication control apparatus comprising:
the scheduling method comprises a request acquisition module, a scheduling request of LTE target resources sent by a terminal, wherein the LTE target resources configured by a base station occupy a first frequency domain bandwidth, the NR target resources configured by the base station occupy a second frequency domain bandwidth, and the first frequency domain bandwidth and the second frequency domain bandwidth are overlapped on a frequency domain;
an available resource calculation module configured to calculate a target resource available to the terminal when a subframe corresponding to the target resource scheduling request has an NR target resource to be transmitted;
a scheduling module configured to, if a common target resource is not fully occupied in a case where target resources available to the terminal are distributed within a second frequency domain bandwidth, schedule the target resources for the terminal using the common target resource in the subframe; and under the condition that the target resources available for the terminal are not distributed in a second frequency domain bandwidth, scheduling the target resources for the terminal by using the target resources available for the terminal in the subframe.
9. The communication control apparatus of claim 8, wherein the target resource is a PDCCH and the available resource calculation module is further configured to: calculating the maximum CCE index identification in the Special PDCCH of the terminal-specific UE of the terminal; and calculating corresponding REGs according to the maximum CCE index identifier, wherein the corresponding REGs serve as target resources available for the terminal.
10. The communication control apparatus according to claim 8, wherein the available resource calculation module is further configured to, in a case where target resources available to the terminal are distributed within a second frequency domain bandwidth, perform no scheduling of target resources in the subframe if common target resources are all occupied.
11. A communication control apparatus comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the communication control method of any of claims 1-7 based on instructions stored in the memory.
12. A computer-readable storage medium on which a computer program is stored, which program, when executed by a processor, implements the communication control method of any one of claims 1 to 7.
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