CN111935823B - Adaptive adjustment method, device, base station and storage medium for downlink control channel resources - Google Patents
Adaptive adjustment method, device, base station and storage medium for downlink control channel resources Download PDFInfo
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W72/30—Resource management for broadcast services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/52—Allocation or scheduling criteria for wireless resources based on load
Abstract
The application discloses a method, a device, a base station and a storage medium for adaptively adjusting downlink control channel resources, wherein the method comprises the steps of determining an optional resource quantity set of the downlink control channel resources of a target base station; acquiring the current traffic and the number of downlink control channel resources broadcasted currently of a target base station, and determining a first target resource number from an optional resource number set when determining that the current traffic and the number of downlink control channel resources meet a preset resource increasing condition; updating the quantity of the downlink control channel resources based on the first target resource quantity, and broadcasting the quantity of the downlink control channel resources; determining a second target resource quantity from the set when the current traffic and the quantity of the downlink control channel resources meet the preset resource reduction condition; and updating the quantity of the downlink control channel resources based on the second target resource quantity, and broadcasting the quantity of the downlink control channel resources. By using the technical scheme provided by the application, the quantity of the downlink control channel resources can be flexibly adjusted, and the communication reliability is improved.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a method, a device, a base station and a storage medium for adaptively adjusting downlink control channel resources.
Background
The base station may configure a bandwidth section, referred to as an Initial bandwidth section (Initial BWP), in the broadcasted SIB1(SIB1, System Information Block 1 System message Block 1). One or two core sets (control resource sets), i.e., core #0 and core #1, may be configured in the initial bandwidth portion, each core set may define a plurality of Search Spaces (SSs), and the control resource sets are mainly used for scheduling downlink control information of system messages, paging messages, and initial random access related messages. For example, SIB1 Search Space (SS) is used to carry downlink control information of scheduling SIB 1; the Paging search space is used for bearing downlink control information of the scheduling Paging; the random access search space is used for bearing downlink control information of related messages of the random access process. The terminal in idle state needs to receive the search space information corresponding to the system message and the paging message to ensure whether there is information sent to the terminal; a terminal in an initial random access state needs to receive system information, paging information and search space information corresponding to random access so as to ensure whether information sent to the terminal exists or not; the power consumption of the terminal is positively correlated with the resources occupied by these search spaces.
In the prior art, in order to limit the power consumption of a terminal in an idle state, some limitations are made on the number of resources of a control resource set, but when the number of resources allocated by a base station is insufficient, a paging search space may be insufficient, which may cause that a paging message cannot be issued in time or a random access search space is insufficient, which further causes the delay of an initial access process of the terminal to be increased, and finally causes the delay of a terminal service to be increased or even the initial access to be failed. When the number of resources allocated by the base station is too large, the terminal needs to receive redundant resource information, which results in increased power consumption of the terminal. Therefore, there is a need to provide a more efficient scheme to control the amount of resources.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method, a device, a base station and a storage medium for adaptively adjusting downlink control channel resources. The technical scheme is as follows:
one aspect of the present application provides a method for adaptively adjusting downlink control channel resources, where the method includes:
determining an optional resource quantity set of downlink control channel resources of a target base station;
acquiring the current service volume of the target base station and the quantity of downlink control channel resources currently broadcast by the target base station;
when the current service volume and the number of the downlink control channel resources currently broadcast by the target base station are determined to meet a preset resource increasing condition, determining a first target resource number from the optional resource number set;
updating the quantity of the downlink control channel resources based on the first target resource quantity, and broadcasting the updated quantity of the downlink control channel resources;
when the current service volume and the number of the downlink control channel resources currently broadcast by the target base station are determined to meet a preset resource reduction condition, determining a second target resource number from the optional resource number set;
and updating the quantity of the downlink control channel resources based on the second target resource quantity, and broadcasting the updated quantity of the downlink control channel resources.
Another aspect of the present application provides a downlink control channel resource adaptive adjustment apparatus, including:
an optional resource quantity set determining module, configured to determine an optional resource quantity set of a downlink control channel resource of a target base station;
an information acquisition module, configured to acquire a current traffic volume of the target base station and a number of downlink control channel resources currently broadcast by the target base station;
a first resource quantity determining module, configured to determine a first target resource quantity from the selectable resource quantity set when it is determined that the current traffic volume and the quantity of downlink control channel resources currently broadcast by the target base station satisfy a preset resource increasing condition;
a first resource updating module, configured to update the number of downlink control channel resources based on the first target resource number, and broadcast the updated number of downlink control channel resources;
a second resource quantity determining module, configured to determine a second target resource quantity from the selectable resource quantity set when it is determined that the current traffic volume and the quantity of downlink control channel resources currently broadcast by the target base station satisfy a preset resource reduction condition;
and the second resource updating module is used for updating the quantity of the downlink control channel resources based on the second target resource quantity and broadcasting the updated quantity of the downlink control channel resources.
Another aspect of the present application provides a base station, where the base station includes the apparatus for adaptively adjusting downlink control channel resources.
Another aspect of the present application provides a computer-readable storage medium, where at least one instruction or at least one program is stored in the storage medium, and the at least one instruction or the at least one program is loaded and executed by a processor to implement the method for adaptively adjusting downlink control channel resources.
The adaptive adjustment method, device, base station and storage medium for downlink control channel resources provided by the application have the following technical effects:
the method and the device take the current service volume of the target base station and the downlink control channel resource quantity currently broadcast by the target base station as judgment basis, and increase the downlink control channel resource quantity in time when the resources are insufficient, thereby being beneficial to reducing the time delay of the terminal service, reducing the risk of the initial access failure of the terminal and improving the reliability of communication; when the resources are excessive, the number of the downlink control channel resources is timely reduced, redundant resource information required to be received by the terminal is reduced, the power consumption of the terminal is reduced, and the resource waste is reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions and advantages of the embodiments of the present application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a method for adaptively adjusting downlink control channel resources according to an embodiment of the present application;
fig. 2 is a flowchart of another adaptive downlink control channel resource adjustment method provided in an embodiment of the present application;
fig. 3 is a flowchart of another adaptive downlink control channel resource adjustment method provided in an embodiment of the present application;
fig. 4 is a flowchart of another adaptive downlink control channel resource adjustment method provided in an embodiment of the present application;
fig. 5 is a flowchart of another adaptive downlink control channel resource adjustment method provided in an embodiment of the present application;
fig. 6 is a flowchart of another adaptive downlink control channel resource adjustment method provided in the embodiment of the present application;
fig. 7 is a schematic diagram illustrating a relationship between a preset traffic statistics period and a modification period of a system message according to an embodiment of the present application;
fig. 8 is a schematic diagram of an apparatus for adaptively adjusting downlink control channel resources according to an embodiment of the present application;
fig. 9 is a block diagram of a hardware structure of a server for adaptively adjusting downlink control channel resources according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a flowchart of a method for adaptively adjusting downlink control channel resources provided in an embodiment of the present application, and referring to fig. 1, the method for adaptively adjusting downlink control channel resources provided in an embodiment of the present application includes the following steps:
s101: and determining the optional resource quantity set of the downlink control channel resources of the target base station.
In this embodiment, the selectable resource quantity set of the Downlink Control Channel resource of the target base station may include a resource quantity set corresponding to a PDCCH (Physical Downlink Control Channel) resource set broadcast by SIB1, and in this embodiment, the target base station may include a first Control resource and a second Control resource, and in practical applications, the first Control resource may include CORESET #0, and the second Control resource may include CORESET # 1. Specifically, as shown in fig. 2, the determining the selectable resource quantity set of the downlink control channel resource of the target base station may include:
s201: and acquiring the optional resource quantity set of the first control resource and the maximum resource quantity of the second control resource.
S203: and when the maximum resource quantity of the second control resource is determined to be larger than the maximum resource quantity in the optional resource quantity set of the first control resource, taking the optional resource quantity set of the first control resource and the maximum resource quantity of the second control resource as the optional resource quantity set of the downlink control channel resource of the target base station.
In an embodiment of the present specification, the method may further include:
and after the selectable resource quantity set of the first control resource and the maximum resource quantity of the second control resource are used as the selectable resource quantity set of the downlink control channel resource of the target base station, marking the second control resource as available. I.e. indicating that CORESET #1 can be configured.
In a specific embodiment, the selectable resource number set of the first control resource may include {48,72,96}, the maximum resource number of the second control resource may be 144, where the maximum resource number in the selectable resource number set of the first control resource is 96, that is, the maximum resource number (144) of the second control resource is greater than the maximum resource number (96) in the selectable resource number set of the first control resource, and where the selectable resource number set of the first control resource and the maximum resource number of the second control resource may be used as the selectable resource number set of the downlink control channel resource of the target base station. That is, the optional set of resource amounts for the downlink control channel resources of the target base station at this time includes {48,72,96,144 }.
S205: and when the maximum resource quantity of the second control resource is determined to be less than or equal to the maximum resource quantity in the optional resource quantity set of the first control resource, taking the optional resource quantity set of the first control resource as the optional resource quantity set of the downlink control channel resource of the target base station.
In a specific embodiment, the selectable resource number set of the first control resource may include {48,72,96}, the maximum resource number of the second control resource may be 96, where the maximum resource number in the selectable resource number set of the first control resource is 96, that is, the maximum resource number (96) of the second control resource is equal to the maximum resource number (96) in the selectable resource number set of the first control resource, and at this time, the selectable resource number set of the first control resource may be directly used as the selectable resource number set of the downlink control channel resource of the target base station. That is, the optional set of resource amounts for the downlink control channel resource of the target base station at this time includes {48,72,96 }.
In an embodiment of the present specification, the method may further include:
and after the selectable resource quantity set of the first control resource is used as the selectable resource quantity set of the downlink control channel resource of the target base station, marking the second control resource as unavailable. I.e. indicating that CORESET #1 is not configured.
By acquiring the selectable resource quantity set of the first control resource and the maximum resource quantity of the second control resource, when the maximum resource quantity of the second control resource is determined to be greater than the maximum resource quantity in the selectable resource quantity set of the first control resource, the selectable resource quantity set of the first control resource and the maximum resource quantity of the second control resource are taken as the selectable resource quantity set of the downlink control channel resource of the target base station, and when the maximum resource quantity of the second control resource is determined to be less than or equal to the maximum resource quantity in the selectable resource quantity set of the first control resource, the selectable resource quantity set of the first control resource is taken as the selectable resource quantity set of the downlink control channel resource of the target base station, which is beneficial for the base station to configure the selectable resource quantity set of the downlink control channel resource of the target base station as required, and the resource utilization rate is improved.
S103: and acquiring the current service volume of the target base station and the quantity of the downlink control channel resources currently broadcast by the target base station.
In this embodiment, the target base station may include a plurality of search spaces, and in practical applications, the plurality of search spaces may include, but are not limited to: SIB1 search space, paging search space, and random access search space.
Specifically, as shown in fig. 3, the acquiring the current traffic of the target base station may include:
s301: and acquiring a preset traffic factor, a first traffic calculated in a current traffic counting period corresponding to each search space and a second traffic calculated in a last traffic counting period corresponding to each search space.
S303: and determining expected traffic corresponding to each search space based on the first traffic, the second traffic and the preset traffic factor.
In a specific embodiment, the determining the expected traffic volume corresponding to each search space based on the first traffic volume, the second traffic volume and the preset traffic volume factor may be based on the following formula:
wherein α represents a preset traffic factor, which is used to indicate the degree of correlation between the expected traffic corresponding to the search space and a historical value (a second traffic calculated in the previous traffic counting period), and the larger α is, the higher the degree of correlation between the expected traffic corresponding to the search space and the historical value is;
representing the second traffic calculated in the (n-1) th traffic statistic period corresponding to the search space i, wherein the second traffic is the expected traffic determined in the (n-1) th traffic statistic period corresponding to the search space i, namely representing a historical value;
representing the expected traffic determined in the nth traffic statistic period corresponding to the search space i, and the history value of alpha is not zero
The influence of (a); rinAnd the first traffic calculated in the nth traffic statistic period corresponding to the search space i is represented.
By obtaining a preset traffic factor, a first traffic calculated in a current traffic counting period corresponding to each search space and a second traffic calculated in a last traffic counting period corresponding to each search space, and determining an expected traffic corresponding to each search space based on the first traffic, the second traffic and the preset traffic factor, the following traffic can be predicted in combination with a historical value, so that the subsequently determined current traffic is more reliable.
In a specific embodiment, Rin(the first traffic calculated in the nth traffic statistic period corresponding to the search space i) can be determined according to the following formula:
wherein, TiRepresenting a preset time window, by means of which the preset time window T can be utilizediPerforming sliding window in all available time domain positions corresponding to the search space i to determine more reliable first traffic, wherein each time the sliding window can take the continuous T corresponding to the search space iiCalculating the service volume of each available time domain position; rainjRepresenting the average traffic calculated by the a sliding window in the n traffic statistical period corresponding to the search space i; l denotes that the time domain position of the a-th sliding window can be from j to (j + T)i-1)，RinlRepresenting a service volume point value calculated at a time domain position l in an nth service volume statistical period corresponding to the search space i;
in one particular embodiment, for example, all available time domain locations j of the search space i may include 1 ~ 5, a preset time window TiAnd 3, the average traffic volume obtained by the first sliding window calculation is as follows:
the average traffic volume obtained by the second sliding window calculation is:
the average traffic volume obtained by the third sliding window calculation is as follows:
redetermining R1inj、R2inj、R3injThe highest value as RinAnd the average traffic is obtained through sliding window calculation, and then the maximum value is taken, so that the reliability of the first traffic is favorably improved, and the reliability of the self-adaptive adjustment of the downlink control channel resources is improved.
In a particular embodimentIn an embodiment, the service volume point value R calculated at the time domain position l in the nth service volume statistics period corresponding to the search space iinlThe number of resources occupied by all search spaces at the time domain position l corresponding to the search space i may be equal to:
Rinlthe number of resources occupied by the whole search space at the time domain position l corresponding to the search space i
It should be noted that the manner of determining the traffic point value calculated at the time domain position l in the nth traffic statistic period corresponding to the search space i is merely an embodiment provided in this specification, and the present invention is not limited thereto.
S305: and determining the maximum expected traffic volume in the expected traffic volumes corresponding to the plurality of search spaces, and taking the maximum expected traffic volume as the current traffic volume of the target base station.
In practical application, for example, the expected traffic volume corresponding to the SIB1 search space is 16, the expected traffic volume corresponding to the OSI search space is 8, the expected traffic volume corresponding to the paging search space is 10, and the expected traffic volume corresponding to the random access search space is 80, at this time, the maximum expected traffic volume among the expected traffic volumes corresponding to the search spaces is 80, and the current traffic volume of the target base station is 80.
By determining the maximum expected traffic volume in the expected traffic volumes corresponding to the plurality of search spaces and taking the maximum expected traffic volume as the current traffic volume of the target base station, the method is beneficial to meeting the traffic volume requirements corresponding to all the search spaces when the downlink control channel resources are adaptively adjusted, reducing the time delay of terminal services, reducing the risk of initial access failure of the terminal, and improving the reliability of the downlink control channel resources adaptive adjustment.
S105: and when the current service volume and the number of the downlink control channel resources currently broadcast by the target base station are determined to meet a preset resource increasing condition, determining a first target resource number from the optional resource number set.
In this embodiment, the preset resource addition condition may include: the current traffic volume is greater than or equal to the number of downlink control channel resources currently broadcast by the target base station, and the number of the downlink control channel resources currently broadcast by the target base station does not reach the maximum resource number in the selectable resource number set (i.e., there is an increased space for the number of the downlink control channel resources currently broadcast by the target base station).
As shown in fig. 3, in an embodiment of the present specification, the determining the first target resource quantity from the selectable resource quantity set may include:
s301: determining a first initial selection resource quantity of which the resource quantity in the selectable resource quantity set is greater than the current traffic quantity;
in a specific embodiment, the set of selectable resource amounts may include 48,72,96,144, the amount of downlink control channel resource currently broadcast by the target base station is 48, the current traffic amount is 80, and the first initially selected resource amount may include 96,144.
S303: determining the minimum resource quantity in the first initially selected resource quantity;
s305: and taking the minimum resource quantity as the first target resource quantity.
In the above embodiment, the first initially selected resource quantity may include {96,144}, where the minimum resource quantity of the first initially selected resource quantity is 96, that is, 96 is taken as the first target resource quantity.
In an embodiment of the present specification, the method further comprises: configuring a second control resource when the minimum number of resources is already the maximum number of resources in the first initially selected number of resources and the second control resource is marked as available. In practical application, the second control resource (CORESET #1) is configured as required, so that the utilization rate of the resource is improved, and the waste of the resource is reduced.
By determining the first initial selection resource quantity of which the resource quantity in the selectable resource quantity set is greater than the current service quantity, determining the minimum resource quantity in the first initial selection resource quantity, and taking the minimum resource quantity as the first target resource quantity, the method can increase the resources in place at one time when the resources need to be increased, thereby meeting the service quantity requirement, improving the reliability of the self-adaptive adjustment of the downlink control channel, being beneficial to reducing the time delay of the terminal service, reducing the risk of the initial access failure of the terminal, and improving the reliability of communication.
In this embodiment, the determining the first target resource quantity from the selectable resource quantity set may further include:
and when the current traffic volume is determined to be greater than or equal to the maximum resource quantity in the optional resource quantity set, taking the maximum resource quantity in the optional resource quantity set as the first target resource quantity.
In practical application, sometimes the current traffic volume is greater than or equal to the maximum resource quantity in the selectable resource quantity set, and at this time, the maximum resource quantity in the selectable resource quantity set can be used as the first target resource quantity to meet the traffic volume requirement as much as possible, so that the time delay of the terminal service is reduced, and the risk of the initial access failure of the terminal is reduced.
In another embodiment of the present description, as shown in fig. 4, the determining the first target resource quantity from the selectable resource quantity set may include:
s401: determining a second initial selection resource quantity of which the resource quantity in the selectable resource quantity set is greater than the quantity of the downlink control channel resources currently broadcast by the target base station;
in a specific embodiment, the set of selectable resource amounts may include {48,72,96,144}, the amount of downlink control channel resources currently broadcast by the target base station is 48, the current traffic amount is 80, and the second initially selected resource amount may include {72,96,144 }.
S403: determining the minimum resource quantity in the second initial selection resource quantities;
s405: and taking the minimum resource quantity as the first target resource quantity.
In the above embodiment, the second initial selection resource amount may include {72,96,144}, where the minimum resource amount in the second initial selection resource amount is 72, that is, 72 is used as the first target resource amount.
In an embodiment of the present specification, the method further comprises: configuring a second control resource when the minimum number of resources is already the maximum number of resources in the second initially selected number of resources and the second control resource is marked as available. In practical application, the second control resource (CORESET #1) is configured as required, so that the utilization rate of the resource is improved, and the waste of the resource is reduced.
By determining a second initial selection resource quantity of which the resource quantity in the selectable resource quantity set is greater than the downlink control channel resource quantity currently broadcast by the target base station, determining a minimum resource quantity in the second initial selection resource quantity, and taking the minimum resource quantity as the first target resource quantity, the method can gradually adjust when the resource is required to be increased, only increasing one level on the basis of the current broadcast resource quantity, and if the next adjustment is not satisfied, increasing one level again, because there is a possibility of pulse type jump condition in practical application (the traffic volume is increased rapidly in a very short time, but is decreased rapidly), the resource waste is reduced and the resource utilization rate is improved by gradually increasing the downlink control channel resource.
In this embodiment, the determining the first target resource quantity from the selectable resource quantity set may further include:
and when determining that the number of the downlink control channel resources currently broadcast by the target base station is already the maximum number of the resources in the optional resource number set, taking the maximum number of the resources in the optional resource number set as the first target resource number.
S107: and updating the quantity of the downlink control channel resources based on the first target resource quantity, and broadcasting the updated quantity of the downlink control channel resources.
In this embodiment, after updating the number of downlink control channel resources based on the first target number of resources, the updated number of downlink control channel resources may be broadcast in a modification period of a next system message.
S109: and when the current service volume and the number of the downlink control channel resources currently broadcast by the target base station are determined to meet a preset resource reduction condition, determining a second target resource number from the optional resource number set.
In an embodiment of the present specification, the preset resource reduction condition may include: the current traffic volume is smaller than the previous-stage resource quantity of the downlink control channel resource quantity currently broadcast by the target base station, and the downlink control channel resource quantity currently broadcast by the target base station does not reach the minimum resource quantity in the optional resource quantity set (namely, the downlink control channel resource quantity currently broadcast by the target base station also has a reduced space). For example, the selectable resource number set includes {48,72,96,144}, the number of downlink control channel resources currently broadcast by the target base station is 96, the current traffic is 60, that is, the current traffic is smaller than the previous-stage resource number (72) of the number of downlink control channel resources currently broadcast by the target base station, and the number of downlink control channel resources currently broadcast by the target base station does not reach the minimum, which satisfies the preset resource reduction condition.
As shown in fig. 5, in an embodiment of the present specification, the determining the second target resource quantity from the selectable resource quantity set may include:
s501: determining a third initial selection resource quantity of which the resource quantity in the selectable resource quantity set is greater than the current traffic quantity;
in a specific embodiment, the set of selectable resource amounts may include {48,72,96,144}, the amount of downlink control channel resources currently broadcast by the target base station is 96, the current traffic amount is 40, and the third initially selected resource amount may include {48,72,96,144 }.
S503: determining the minimum resource quantity in the third initial selection resource quantities;
s505: and taking the minimum resource quantity as the second target resource quantity.
In the above embodiment, the third initial selection resource amount may include {48,72,96,144}, where the minimum resource amount in the third initial selection resource amount is 48, i.e. 48 is used as the second target resource amount.
By determining the third initial selection resource quantity of which the resource quantity in the selectable resource quantity set is greater than the current traffic, determining the minimum resource quantity in the third initial selection resource quantity, and taking the minimum resource quantity as the second target resource quantity, the method can reduce the resource quantity in place at one time when the resource quantity needs to be reduced, reduce redundant resource information required to be received by the terminal, reduce the power consumption of the terminal, and reduce the resource waste.
In this embodiment, the determining the second target resource quantity from the selectable resource quantity set may further include:
and when the current traffic volume is determined to be smaller than the minimum resource quantity in the optional resource quantity set, taking the minimum resource quantity in the optional resource quantity set as the second target resource quantity.
In practical application, sometimes the current traffic volume is smaller than the minimum resource quantity in the selectable resource quantity set, and in order to reduce resource waste, the minimum resource quantity in the selectable resource quantity set may be used as the second target resource quantity to reduce redundant resource information that the terminal needs to receive, thereby reducing power consumption of the terminal.
As shown in fig. 6, in an embodiment of the present specification, the determining the second target resource quantity from the selectable resource quantity set may include:
s601: determining a fourth initial selection resource quantity of which the resource quantity in the optional resource quantity set is smaller than the quantity of the downlink control channel resources currently broadcast by the target base station;
in a specific embodiment, the optional number of resources set may include {48,72,96,144}, the number of downlink control channel resources currently broadcast by the target base station is 96, the current traffic is 40, and the fourth initial selection of resources may include {48,72 }.
S603: determining the maximum resource quantity in the fourth initial selection resource quantity;
s605: and taking the maximum resource quantity as the second target resource quantity.
In the above embodiment, the fourth initial resource quantity may include {48,72}, where the maximum resource quantity in the fourth initial resource quantity is 72, that is, 72 is taken as the second target resource quantity.
Determining the maximum resource quantity in the fourth initial selection resource quantities by determining the fourth initial selection resource quantities of which the resource quantities in the optional resource quantity set are smaller than the quantity of the downlink control channel resources currently broadcast by the target base station, and the maximum resource quantity is taken as the second target resource quantity, which can be adjusted step by step when the resource reduction is needed, only one level is reduced on the basis of the current broadcast resource quantity, and the next adjustment is carried out, if the resource quantity is still too much, the next adjustment is carried out again, because there may be pulse type jump condition in practical application (the traffic volume is decreased rapidly in a very short time, but is increased rapidly), by gradually reducing the downlink control channel resources, it is beneficial to ensure that the number of the downlink control channel resources is sufficient, improve the communication reliability, reduce the time delay of the terminal service, and reduce the risk of the initial access failure of the terminal.
In this embodiment, the determining the second target resource quantity from the selectable resource quantity set may further include:
and when determining that the number of the downlink control channel resources currently broadcast by the target base station is already the minimum number of the resources in the optional number of resources set, taking the minimum number of the resources in the optional number of resources set as the second target number of resources.
S111: and updating the quantity of the downlink control channel resources based on the second target resource quantity, and broadcasting the updated quantity of the downlink control channel resources.
In this embodiment, after updating the number of downlink control channel resources based on the second target number of resources, the updated number of downlink control channel resources may be broadcast in a modification period of a next system message.
In an embodiment of the present specification, the method further comprises: and when the current service volume and the number of the downlink control channel resources currently broadcast by the target base station are determined to meet a preset resource reduction condition and a second control resource is detected to be configured, disabling the second control resource.
In practical applications, if the set of selectable resource amounts of CORESET #0 includes {48,72,96}, and the maximum resource amount of CORESET #1 is 144, the set of selectable resource amounts of downlink control channel resources of the target base station includes {48,72,96,144 }. When the current service volume and the number of the downlink control channel resources currently broadcast by the target base station are determined to meet a preset resource increasing condition, and the number of the first target resources finally determined from the optional resource number set is 96, only using CORESET # 0; when the current service volume and the number of the downlink control channel resources currently broadcast by the target base station are determined to meet a preset resource increasing condition, and finally the first target resource number determined from the optional resource number set is 144, using CORESET #0 and CORESET #1 at the same time; and when the current service volume and the number of the downlink control channel resources currently broadcast by the target base station are determined to meet a preset resource reduction condition and the configuration of CORESET #1 is detected, the CORESET #1 is forbidden to reduce the resource waste.
In this embodiment of the present specification, by obtaining a selectable resource quantity set of a first control resource and a maximum resource quantity of a second control resource, when it is determined that the maximum resource quantity of the second control resource is greater than the maximum resource quantity in the selectable resource quantity set of the first control resource, the selectable resource quantity set of the first control resource and the maximum resource quantity of the second control resource are used as a selectable resource quantity set of a downlink control channel resource of the target base station, and when it is determined that the maximum resource quantity of the second control resource is less than or equal to the maximum resource quantity in the selectable resource quantity set of the first control resource, the selectable resource quantity set of the first control resource is used as a selectable resource quantity set of a downlink control channel resource of the target base station, which is beneficial for the base station to configure the selectable resource quantity set of the downlink control channel resource of the target base station as needed, and the resource utilization rate is improved.
In the embodiment of the present specification, the target base station can calculate the current traffic according to a traffic statistic period, where the traffic statistic period is preset and may be specifically set according to an actual application requirement. In one embodiment, the preset traffic statistic period may be equal to a modification period of the system message; in another embodiment, the preset traffic statistic period may be slightly shorter than the modification period of the system message, allowing for adjusting the processing time of the contents of the SIB 1. Referring to fig. 7, fig. 7 is a schematic diagram illustrating a relationship between a preset traffic statistics period and a modification period of a system message provided in an embodiment of the present disclosure, where each small cell in the diagram is a DRX (Discontinuous Reception) period, and an end boundary of a preset traffic statistics period may be defined as a start boundary of a DRX period before a start boundary of a modification period of a next system message (i.e., a DRX period is reserved between the end boundary of a preset traffic statistics period and the start boundary of the modification period of the next system message as a paging time length), and the DRX period is used as the paging time length. The target base station may determine whether the downlink control channel resource amount needs to be updated when a preset traffic statistic period ends. If the update is needed, sending a message to all terminals of the target base station in the next DRX period to inform that the quantity of the downlink control channel resources is changed, and sending the updated quantity of the downlink control channel resources at the starting boundary of the system message modification period. It should be noted that, this is merely an illustration of an embodiment provided in this specification, in order to reserve sufficient time to send a message to all terminals of the target base station to notify that the number of downlink control channel resources has changed, and improve communication reliability, an end boundary of a preset traffic statistics period may be further defined as a start boundary (n is a positive integer greater than 1, and n may be set in combination with actual application requirements) of n DRX periods before a start boundary of a modification period of a next system message, that is, a paging time length may include n DRX periods, which is not limited by the present invention.
By acquiring the current traffic of the target base station and the number of downlink control channel resources currently broadcast by the target base station, when determining that the current traffic and the number of downlink control channel resources currently broadcast by the target base station meet a preset resource increase condition, determining a first target resource number from the selectable resource number set, and determining the first target resource number from the selectable resource number set comprises determining a first initial selection resource number in which the resource number in the selectable resource number set is greater than the current traffic, determining a minimum resource number in the first initial selection resource number, and taking the minimum resource number as the first target resource number, the target base station can be increased to a position once when the resource increase is needed, meet the traffic demand, and improve the reliability of the adaptive adjustment of the downlink control channel, the method is beneficial to reducing the time delay of the terminal service, reducing the risk of the initial access failure of the terminal and improving the reliability of communication. In another embodiment, determining the first target resource quantity from the selectable resource quantity set may include determining a second initial selection resource quantity, in which the resource quantity in the selectable resource quantity set is greater than the downlink control channel resource quantity currently broadcast by the target base station, determining a minimum resource quantity in the second initial selection resource quantity, and taking the minimum resource quantity as the first target resource quantity, which may be adjusted step by step when resource increase is required, and which may cope with a pulsed hopping situation existing in an actual application, and by increasing downlink control channel resources step by step, it is beneficial to reduce resource waste and improve resource utilization. And updating the quantity of the downlink control channel resources based on the first target resource quantity, and broadcasting the updated quantity of the downlink control channel resources. When the current service volume and the number of the downlink control channel resources currently broadcast by the target base station are determined to meet the preset resource reduction condition, determining a second target resource number from the optional resource number set, updating the number of the downlink control channel resources based on the second target resource number, and broadcasting the updated number of the downlink control channel resources, so that redundant resource information required to be received by the terminal is reduced, the power consumption of the terminal is reduced, and the resource waste is reduced.
An embodiment of the present invention further provides an embodiment of a device for adaptively adjusting downlink control channel resources, and as shown in fig. 8, the device may include:
an optional resource quantity set determining module 810, configured to determine an optional resource quantity set of downlink control channel resources of a target base station;
an information obtaining module 820, configured to obtain a current traffic volume of the target base station and a number of downlink control channel resources currently broadcast by the target base station;
a first resource quantity determining module 830, configured to determine a first target resource quantity from the selectable resource quantity set when it is determined that the current traffic volume and the quantity of downlink control channel resources currently broadcast by the target base station meet a preset resource increasing condition;
a first resource updating module 840, configured to update the number of downlink control channel resources based on the first target resource number, and broadcast the updated number of downlink control channel resources;
a second resource quantity determining module 850, configured to determine a second target resource quantity from the selectable resource quantity set when it is determined that the current traffic volume and the quantity of downlink control channel resources currently broadcast by the target base station meet a preset resource reduction condition;
a second resource updating module 860, configured to update the number of downlink control channel resources based on the second target resource number, and broadcast the updated number of downlink control channel resources.
In one embodiment, the first resource quantity determining module 830 may include:
a first initial selection resource quantity determining unit, configured to determine that the quantity of resources in the selectable resource quantity set is greater than the first initial selection resource quantity of the current traffic volume;
a first minimum resource quantity determining unit, configured to determine a minimum resource quantity in the first initially selected resource quantities;
a first target resource quantity determining unit, configured to use the minimum resource quantity as the first target resource quantity.
In another embodiment, the first resource quantity determining module 830 may include:
a second initial selection resource quantity determining unit, configured to determine a second initial selection resource quantity of which the resource quantity in the selectable resource quantity set is greater than the quantity of the downlink control channel resource currently broadcast by the target base station;
a second minimum resource quantity determining unit, configured to determine a minimum resource quantity in the second initially selected resource quantity;
a second resource quantity determining unit, configured to use the minimum resource quantity as the first target resource quantity.
In one embodiment, the second resource quantity determining module 850 may include:
a third primary selection resource quantity determining unit, configured to determine a third primary selection resource quantity that the resource quantity in the selectable resource quantity set is greater than the current traffic quantity;
a third minimum resource quantity determining unit, configured to determine a minimum resource quantity in the third initially selected resource quantities;
a third resource quantity determining unit, configured to use the minimum resource quantity as the second target resource quantity.
In another embodiment, the second resource quantity determination module 850 may include:
a fourth primary selection resource quantity determining unit, configured to determine a fourth primary selection resource quantity, where the resource quantity in the selectable resource quantity set is smaller than the quantity of the downlink control channel resource currently broadcast by the target base station;
a maximum resource quantity determining unit, configured to determine a maximum resource quantity in the fourth initial resource quantity;
a fourth resource quantity determining unit, configured to take the maximum resource quantity as the second target resource quantity.
Specifically, the target base station includes a first control resource and a second control resource, and the optional resource number set determining module 810 may include:
a resource quantity obtaining unit, configured to obtain a set of selectable resource quantities of the first control resource and a maximum resource quantity of the second control resource;
a first optional resource quantity set determining unit, configured to, when it is determined that the maximum resource quantity of the second control resource is greater than a maximum resource quantity in the optional resource quantity set of the first control resource, take the optional resource quantity set of the first control resource and the maximum resource quantity of the second control resource as an optional resource quantity set of a downlink control channel resource of the target base station;
a second optional resource quantity set determining unit, configured to, when it is determined that the maximum resource quantity of the second control resource is smaller than or equal to the maximum resource quantity in the optional resource quantity set of the first control resource, use the optional resource quantity set of the first control resource as the optional resource quantity set of the downlink control channel resource of the target base station.
Specifically, the target base station includes a plurality of search spaces, and the information obtaining module 820 may include:
the device comprises a traffic obtaining unit, a searching unit and a processing unit, wherein the traffic obtaining unit is used for obtaining a preset traffic factor, a first traffic calculated in a current traffic counting period corresponding to each searching space and a second traffic calculated in a last traffic counting period corresponding to each searching space;
an expected traffic determining unit, configured to determine an expected traffic corresponding to each search space based on the first traffic, the second traffic, and the preset traffic factor;
a current traffic determining unit, configured to determine a maximum expected traffic in expected traffic corresponding to the multiple search spaces, and use the maximum expected traffic as the current traffic of the target base station.
The embodiment of the invention provides a base station, which comprises the downlink control channel resource self-adaptive adjusting device.
The embodiment of the present invention provides a computer device, where the computer device includes a processor and a memory, where the memory stores at least one instruction or at least one program, and the at least one instruction or the at least one program is loaded and executed by the processor to implement the method for adaptively adjusting downlink control channel resources provided in the foregoing method embodiment.
The memory may be used to store software programs and modules, and the processor may execute various functional applications and data processing by operating the software programs and modules stored in the memory. The memory can mainly comprise a program storage area and a data storage area, wherein the program storage area can store an operating system, application programs needed by functions and the like; the storage data area may store data created according to use of the apparatus, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory may also include a memory controller to provide the processor access to the memory.
The method embodiments provided by the embodiments of the present invention may be executed in a mobile terminal, a computer terminal, a server, or a similar computing device, that is, the computer device may include a mobile terminal, a computer terminal, a server, or a similar computing device. Taking the operation on a server as an example, fig. 9 is a hardware structure block diagram of the server of the downlink control channel resource adaptive adjustment method provided in the embodiment of the present invention. As shown in fig. 9, the server 900 may have a relatively large difference due to different configurations or performances, and may include one or more Central Processing Units (CPUs) 910 (the processor 910 may include but is not limited to a Processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 930 for storing data, and one or more storage media 920 (e.g., one or more mass storage devices) for storing applications 923 or data 922. Memory 930 and storage media 920 may be, among other things, transient or persistent storage. The program stored in the storage medium 920 may include one or more modules, each of which may include a series of instruction operations in a server. Still further, the central processor 910 may be configured to communicate with the storage medium 920, and execute a series of instruction operations in the storage medium 920 on the server 900. The server 900 may alsoTo include one or more power supplies 960, one or more wired or wireless network interfaces 950, one or more input-output interfaces 940, and/or one or more operating systems 921, such as a Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTMAnd so on.
It will be understood by those skilled in the art that the structure shown in fig. 9 is only an illustration and is not intended to limit the structure of the electronic device. For example, server 900 may also include more or fewer components than shown in FIG. 9, or have a different configuration than shown in FIG. 9.
The embodiment of the present invention further provides a computer-readable storage medium, where the storage medium may be configured in a server to store at least one instruction or at least one program for implementing a downlink control channel resource adaptive adjustment method in the method embodiment, and the at least one instruction or the at least one program is loaded and executed by the processor to implement the downlink control channel resource adaptive adjustment method provided in the method embodiment.
Alternatively, in this embodiment, the storage medium may be located in at least one network server of a plurality of network servers of a computer network. 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.
As can be seen from the above embodiments of the method, apparatus, base station, or storage medium for adaptively adjusting downlink control channel resources provided by the present invention, the present invention obtains the current traffic volume of the target base station and the number of downlink control channel resources currently broadcast by the target base station, determines a first target resource number from the selectable resource number set when it is determined that the current traffic volume and the number of downlink control channel resources currently broadcast by the target base station satisfy a preset resource increase condition, and determines the first target resource number from the selectable resource number set includes determining a first initial resource number in which the resource number in the selectable resource number set is greater than the current traffic volume, determining a minimum resource number in the first initial resource number, and taking the minimum resource number as the first target resource number, which can be increased in place at one time when a resource increase is required, the method and the device meet the requirement of the service volume, improve the reliability of the self-adaptive adjustment of the downlink control channel, are beneficial to reducing the time delay of the terminal service, reduce the risk of the initial access failure of the terminal and improve the reliability of communication. In another embodiment, determining the first target resource quantity from the selectable resource quantity set may include determining a second initial selection resource quantity, in which the resource quantity in the selectable resource quantity set is greater than the downlink control channel resource quantity currently broadcast by the target base station, determining a minimum resource quantity in the second initial selection resource quantity, and taking the minimum resource quantity as the first target resource quantity, which may be adjusted step by step when resource increase is required, and which may cope with a pulsed hopping situation existing in an actual application, and by increasing downlink control channel resources step by step, it is beneficial to reduce resource waste and improve resource utilization. And updating the quantity of the downlink control channel resources based on the first target resource quantity, and broadcasting the updated quantity of the downlink control channel resources. When the current service volume and the number of the downlink control channel resources currently broadcast by the target base station are determined to meet the preset resource reduction condition, determining a second target resource number from the optional resource number set, updating the number of the downlink control channel resources based on the second target resource number, and broadcasting the updated number of the downlink control channel resources, so that redundant resource information required to be received by the terminal is reduced, the power consumption of the terminal is reduced, and the resource waste is reduced.
It should be noted that: the precedence order of the above embodiments of the present invention is only for description, and does not represent the merits of the embodiments. And specific embodiments thereof have been described above. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus, device and storage medium embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference may be made to some descriptions of the method embodiments for relevant points.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
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 (7)
1. A method for adaptively adjusting downlink control channel resources is characterized by comprising the following steps:
determining a selectable resource quantity set of downlink control channel resources of a target base station, wherein the target base station comprises a plurality of search spaces;
acquiring the quantity of downlink control channel resources currently broadcast by the target base station;
acquiring a preset traffic factor, a first traffic calculated in a current traffic counting period corresponding to each search space and a second traffic calculated in a last traffic counting period corresponding to each search space;
determining expected traffic corresponding to each search space based on the first traffic, the second traffic and the preset traffic factor;
determining the maximum expected traffic volume in the expected traffic volumes corresponding to the plurality of search spaces, and taking the maximum expected traffic volume as the current traffic volume of the target base station, wherein the target base station calculates the current traffic volume according to a preset traffic volume statistical period;
when the current service volume and the number of the downlink control channel resources currently broadcast by the target base station are determined to meet a preset resource increasing condition, determining a second initial selection resource number of which the resource number is greater than the number of the downlink control channel resources currently broadcast by the target base station in the selectable resource number set;
determining the minimum resource quantity in the second initial selection resource quantities;
taking the minimum resource quantity as a first target resource quantity;
updating the quantity of the downlink control channel resources based on the first target resource quantity, and broadcasting the updated quantity of the downlink control channel resources;
when the current service volume and the number of the downlink control channel resources currently broadcast by the target base station are determined to meet a preset resource reduction condition, determining a second target resource number from the optional resource number set;
and updating the quantity of the downlink control channel resources based on the second target resource quantity, and broadcasting the updated quantity of the downlink control channel resources.
2. The method of claim 1, wherein determining the second target number of resources from the set of selectable numbers of resources comprises:
determining a third initial selection resource quantity of which the resource quantity in the selectable resource quantity set is greater than the current traffic quantity;
determining the minimum resource quantity in the third initial selection resource quantities;
and taking the minimum resource quantity in the third primarily selected resource quantities as the second target resource quantity.
3. The method of claim 1, wherein determining the second target number of resources from the set of selectable numbers of resources comprises:
determining a fourth initial selection resource quantity of which the resource quantity in the optional resource quantity set is smaller than the quantity of the downlink control channel resources currently broadcast by the target base station;
determining the maximum resource quantity in the fourth initial selection resource quantity;
and taking the maximum resource quantity as the second target resource quantity.
4. The method of claim 1, wherein the target base station comprises a first control resource and a second control resource, and wherein determining the selectable set of resource amounts of the downlink control channel resources of the target base station comprises:
acquiring the optional resource quantity set of the first control resource and the maximum resource quantity of the second control resource;
when the maximum resource quantity of the second control resource is determined to be larger than the maximum resource quantity in the optional resource quantity set of the first control resource, taking the optional resource quantity set of the first control resource and the maximum resource quantity of the second control resource as an optional resource quantity set of downlink control channel resources of the target base station;
and when the maximum resource quantity of the second control resource is determined to be less than or equal to the maximum resource quantity in the optional resource quantity set of the first control resource, taking the optional resource quantity set of the first control resource as the optional resource quantity set of the downlink control channel resource of the target base station.
5. An apparatus for adaptively adjusting downlink control channel resources, the apparatus comprising:
an optional resource quantity set determining module, configured to determine an optional resource quantity set of downlink control channel resources of a target base station, where the target base station includes multiple search spaces;
an information acquisition module, configured to acquire the number of downlink control channel resources currently broadcast by the target base station;
the system comprises a traffic obtaining module, a searching module and a processing module, wherein the traffic obtaining module is used for obtaining a preset traffic factor, a first traffic obtained by calculation in a current traffic counting period corresponding to each searching space and a second traffic obtained by calculation in a last traffic counting period corresponding to each searching space;
an expected traffic determining module, configured to determine an expected traffic corresponding to each search space based on the first traffic, the second traffic, and the preset traffic factor;
a current traffic determining module, configured to determine a maximum expected traffic in expected traffic corresponding to the multiple search spaces, and use the maximum expected traffic as a current traffic of the target base station, where the target base station calculates the current traffic according to a preset traffic counting period;
a second initial selection resource quantity determining module, configured to determine, when it is determined that the current traffic volume and the number of downlink control channel resources currently broadcast by the target base station satisfy a preset resource increasing condition, a second initial selection resource quantity in which the number of resources in the selectable resource quantity set is greater than the number of downlink control channel resources currently broadcast by the target base station;
a minimum resource quantity determining module, configured to determine a minimum resource quantity of the second initially selected resource quantities;
a first target resource quantity determining module, configured to use the minimum resource quantity as a first target resource quantity;
a first resource updating module, configured to update the number of downlink control channel resources based on the first target resource number, and broadcast the updated number of downlink control channel resources;
a second resource quantity determining module, configured to determine a second target resource quantity from the selectable resource quantity set when it is determined that the current traffic volume and the quantity of downlink control channel resources currently broadcast by the target base station satisfy a preset resource reduction condition;
and the second resource updating module is used for updating the quantity of the downlink control channel resources based on the second target resource quantity and broadcasting the updated quantity of the downlink control channel resources.
6. A base station, characterized in that the base station comprises the downlink control channel resource adaptive adjusting apparatus of claim 5.
7. A computer-readable storage medium, wherein at least one instruction or at least one program is stored in the storage medium, and the at least one instruction or the at least one program is loaded and executed by a processor to implement the adaptive downlink control channel resource adjustment method according to any one of claims 1 to 4.
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| MX340469B (en) * | 2011-12-23 | 2016-07-07 | Fujitsu Ltd | Resource mapping method and apparatus for downlink control channel. |
| CN103716888B (en) * | 2012-09-29 | 2017-04-12 | 普天信息技术研究院有限公司 | Control channel resource allocation method and base station |
| CN104812079B (en) * | 2015-04-03 | 2018-07-06 | 京信通信系统（中国）有限公司 | The distribution method and device of a kind of PDCCH resource |
| CN107846702B (en) * | 2016-09-20 | 2021-05-14 | 普天信息技术有限公司 | Resource allocation method for enhanced physical downlink control channel |
| WO2019084879A1 (en) * | 2017-11-02 | 2019-05-09 | 北京小米移动软件有限公司 | Method and device for searching for common resource set of remaining mission-critical system information |
| US11191011B2 (en) * | 2017-11-16 | 2021-11-30 | Nokia Technologies Oy | Managing control channel blind searches between search spaces in new radio |
| EP4255070A3 (en) * | 2018-08-09 | 2023-12-27 | Lenovo (Singapore) Pte. Ltd. | Downlink assignments for downlink control channels |
| CN110891306B (en) * | 2018-09-07 | 2023-02-28 | 成都鼎桥通信技术有限公司 | Method, base station and storage medium for downlink coverage adaptive adjustment |
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