CN114828189A - Method and device for adjusting service distance of 5G small base station - Google Patents

Method and device for adjusting service distance of 5G small base station Download PDF

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Publication number
CN114828189A
CN114828189A CN202210404974.0A CN202210404974A CN114828189A CN 114828189 A CN114828189 A CN 114828189A CN 202210404974 A CN202210404974 A CN 202210404974A CN 114828189 A CN114828189 A CN 114828189A
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resource block
service
base station
small base
user terminal
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CN202210404974.0A
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CN114828189B (en
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蒋毅
林广远
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Super Communications Co ltd
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Super Communications Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H04W52/265—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the quality of service QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/543—Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The application discloses a method and a device for adjusting service distance of a 5G small base station, which are used for solving the technical problem of low performance ratio of the 5G small base station. The service distance adjusting scheme for the 5G small base station improves the service distance of the 5G small base station to a user terminal by intelligently allocating the power of a Resource Block (RB). And a screening weight value and a historical weight value are introduced to achieve the technical effect of self-learning of the 5G small base station service distance adjusting scheme. Meanwhile, resource blocks RB in an idle state are intelligently called to be added into a service resource block RB set, the service distance of the 5G small base station to the user terminal is further improved, and the operation stability of the service distance adjusting scheme of the 5G small base station is also improved.

Description

Method and device for adjusting service distance of 5G small base station
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for adjusting a service distance of a 5G small cell.
Background
With the rapid increase of the number of user terminals, the large-scale increase of traffic demands, the continuous diversification of demand scenes such as the interconnection of everything and the like, the application demands of various industries on the 5G technology are more and more urgent, and the application scenes are more and more extensive. Different from the prior art, the 5G network does not use the construction framework of a large base station, but uses a high-density small base station, which is more beneficial for telecommunication operators to flexibly network in a most cost-effective mode, thereby improving the network density and the coverage area.
The 5G base stations are mainly divided into macro base stations and small base stations. The macro base station is mainly used for outdoor coverage, and is large in size and wide in coverage area. However, due to the 5G high-frequency band operation, the coverage range of the macro base station is limited, and a large number of small base stations are required to cooperate with the macro base station to perform continuous coverage and indoor shallow coverage.
In the process of realizing the prior art, the inventor finds that:
the working width of the 5G small base station is 100M, and 273 wireless Resource Blocks (RB) can be scheduled. Considering that the antenna power of a 5G small base station is 24dbm (250mw), when the 24dbm antenna power is averaged over 273 radio resource blocks RB, the power carried by each radio resource block RB is relatively low. The lower transmission power will result in a shorter transmission distance of a single radio resource block RB, which makes the utilization and performance ratio of the 5G small base station low.
Therefore, it is necessary to provide a service distance adjustment scheme for a 5G small cell to solve the technical problem of low performance ratio of the 5G small cell.
Disclosure of Invention
The embodiment of the application provides a new service distance adjustment scheme for a 5G small cell base station, which is used for solving the technical problem of low performance ratio of the 5G small cell base station.
Specifically, a method for adjusting a service distance of a 5G small cell includes the following steps:
receiving a service request including a service quality of service (QoS) requirement from a user terminal;
calculating the required number K of resource blocks RB according to the service quality QoS requirement;
acquiring an interference coefficient of a user terminal to a resource block RB and an interference coefficient of a 5G small base station to the resource block RB;
establishing a mapping relation of an interference coefficient of a user terminal to a Resource Block (RB) and an interference coefficient of a 5G small base station to the Resource Block (RB) in a preset weight table;
respectively obtaining the interference coefficient of the user terminal to the resource block RB and the weight value of the interference coefficient of the 5G small base station to the resource block RB in the preset weight table according to the preset weight table;
comprehensively scoring the resource block RB according to the weighted value of the interference coefficient of the user terminal to the resource block RB and the weighted value of the interference coefficient of the 5G small base station to the resource block RB;
selecting resource blocks RB of the TOP-K comprehensive score as elements to form a service resource block RB set;
and adjusting the transmitting power of the 5G small base station according to the service resource block RB set so as to adjust the service distance of the 5G small base station to the user terminal.
Further, the method comprises the following steps:
determining Resource Blocks (RB) in an idle state;
and adding the resource block RB in the idle state into a service resource block RB set by taking the resource block RB in the idle state as an element.
Further, the method comprises the following steps:
recording a user identifier of a user terminal;
saving the resource blocks RB in the service resource block RB set as historical recommended resource blocks RB;
establishing an association relation between a historical recommended Resource Block (RB) and a user identifier;
when a service request including the service quality QoS requirement from the user terminal is received again, the user identification is identified;
determining a historical recommended Resource Block (RB) associated with the user identifier according to the user identifier;
and taking the historical recommended resource blocks RB as elements to form a service resource block RB set.
Further, the method comprises the following steps:
recording a user identifier of a user terminal;
saving the resource blocks RB in the service resource block RB set as historical recommended resource blocks RB;
establishing an association relation between a historical recommended Resource Block (RB) and a user identifier and a mapping relation of the historical recommended Resource Block (RB) in a preset weight table;
when a service request including the service quality QoS requirement from the user terminal is received again, the user identification is identified;
determining a historical recommended Resource Block (RB) associated with the user identifier according to the user identifier;
obtaining a weight value of a historical recommended Resource Block (RB) according to a preset weight table;
and comprehensively scoring the resource blocks RB according to the weighted values of the interference coefficients of the user terminal to the resource blocks RB, the weighted values of the interference coefficients of the 5G small base stations to the resource blocks RB and the weighted values of the historical recommended resource blocks RB.
Further, the method comprises the following steps:
acquiring KPI indexes of the 5G small base stations;
when the KPI of the 5G small base station is in a first preset threshold value, allowing Resource Blocks (RB) in an idle state to serve as elements, and adding a service Resource Block (RB) set;
and when the KPI of the 5G small base station is in a second preset threshold value, not allowing the resource block RB in the idle state as an element, and adding a service resource block RB set.
The embodiment of the application also provides a device for adjusting the service distance of the 5G small base station.
Specifically, a device for adjusting service distance of a 5G small cell, includes:
a receiving module, configured to receive a service request including a QoS requirement from a user equipment;
the scoring module is used for calculating the required number K of the resource blocks RB according to the service quality QoS requirement; the system is also used for acquiring the interference coefficient of the user terminal to the resource block RB and the interference coefficient of the 5G small base station to the resource block RB; the mapping relation of the interference coefficient of the user terminal to the resource block RB and the interference coefficient of the 5G small base station to the resource block RB in the preset weight table is established; the system is also used for respectively obtaining the interference coefficient of the user terminal to the resource block RB and the weight value of the interference coefficient of the 5G small base station to the resource block RB in the preset weight table according to the preset weight table; the system is also used for carrying out comprehensive scoring on the resource block RB according to the weighted value of the interference coefficient of the user terminal to the resource block RB and the weighted value of the interference coefficient of the 5G small base station to the resource block RB; the method is also used for selecting the resource block RB of the comprehensive score TOP-K as an element to form a service resource block RB set;
and the scheduling module is used for adjusting the transmitting power of the 5G small base station according to the service resource block RB set so as to adjust the service distance of the 5G small base station to the user terminal.
Further, the scoring module is further configured to:
determining Resource Blocks (RB) in an idle state;
and adding the resource block RB in the idle state into a service resource block RB set by taking the resource block RB in the idle state as an element.
Further, the scoring module is further configured to:
recording a user identifier of a user terminal;
saving the resource blocks RB in the service resource block RB set as historical recommended resource blocks RB;
establishing an association relation between a historical recommended Resource Block (RB) and a user identifier;
when a service request including the service quality QoS requirement from the user terminal is received again, the user identification is identified;
determining a historical recommended Resource Block (RB) associated with the user identifier according to the user identifier;
and taking the historical recommended resource blocks RB as elements to form a service resource block RB set.
Further, the scoring module is further configured to:
recording a user identifier of a user terminal;
saving the resource blocks RB in the service resource block RB set as historical recommended resource blocks RB;
establishing an association relation between a historical recommended Resource Block (RB) and a user identifier and a mapping relation of the historical recommended Resource Block (RB) in a preset weight table;
when a service request including the service quality QoS requirement from the user terminal is received again, the user identification is identified;
determining a historical recommended Resource Block (RB) associated with the user identifier according to the user identifier;
obtaining a weight value of a historical recommended Resource Block (RB) according to a preset weight table;
and comprehensively scoring the resource blocks RB according to the weighted values of the interference coefficients of the user terminal to the resource blocks RB, the weighted values of the interference coefficients of the 5G small base stations to the resource blocks RB and the weighted values of the historical recommended resource blocks RB.
Further, the scoring module is further configured to:
acquiring KPI indexes of the 5G small base stations;
when the KPI of the 5G small base station is in a first preset threshold value, allowing Resource Blocks (RB) in an idle state to serve as elements, and adding a service Resource Block (RB) set;
and when the KPI of the 5G small base station is in a second preset threshold value, not allowing the resource block RB in the idle state as an element, and adding a service resource block RB set.
The technical scheme provided by the embodiment of the application at least has the following beneficial effects:
by intelligently distributing the RB power of the resource blocks, the service distance of the 5G small base station to the user terminal is increased. And a screening weight value and a historical weight value are introduced to achieve the technical effect of self-learning of the 5G small base station service distance adjusting scheme. Meanwhile, resource blocks RB in an idle state are intelligently called to be added into a service resource block RB set, the service distance of the 5G small base station to the user terminal is further improved, and the operation stability of the service distance adjusting scheme of the 5G small base station is also improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a flowchart of a method for adjusting a service distance of a 5G small cell base station according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of a device for adjusting a service distance of a 5G small base station according to an embodiment of the present disclosure.
1005G small base station service distance adjusting device
11 receiving module
12 grading module
13 scheduling module
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some 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.
Those skilled in the art will appreciate that 5G base stations are largely divided into macro base stations and small base stations. The small base station has smaller transmitting power and can be divided into a micro base station, a pico base station and a femto base station according to the size of a coverage area. The application target of the application is a 5G small base station, the working width of the 5G small base station is 100M, and 273 radio Resource Blocks (RBs) can be scheduled. Considering that the antenna power of a 5G small base station is 24dbm (250mw), when the antenna power of the 24dbm is averaged to 273 radio resource blocks RB, the power carried by each radio resource block RB is relatively low. A lower transmission power will result in a shorter transmission distance of a single radio resource block RB. In other words, the lower transmission power results in a shorter service distance and a smaller coverage of the 5G small cell, which results in a lower utilization and performance ratio of the 5G small cell.
Referring to fig. 1, to solve the technical problem of low performance ratio of the 5G small cell, the present application provides a method for adjusting a service distance of the 5G small cell, including the following steps:
s110: a service request is received from a user terminal comprising a quality of service, QoS, requirement of a service.
It will be appreciated that the user terminal has radio access capability. When the user terminal has service requirements, the user terminal takes the required service and the service quality QoS requirements as service request data and sends the service request data to the 5G small base station. Wherein, Quality of Service (QoS) is used to evaluate the ability of the server to meet the customer Service requirement.
S120: and calculating the required number K of the resource blocks RB according to the service quality QoS requirement.
It is noted that the traffic quality of service QoS requirements comprise required transmission bandwidth parameters.
The relational expression for calculating the required number K of the resource blocks RB is as follows:
required transmission bandwidth subcarrier width RB number of subcarriers per RB K
In the relation, the subcarrier width is 15K and the number of subcarriers per RB is 12.
Through the relational expression, the required number K of the resource blocks RB can be calculated according to the service quality QoS requirement.
S130: and acquiring the interference coefficient of the user terminal to the resource block RB and the interference coefficient of the 5G small base station to the resource block RB.
S140: and establishing a mapping relation of the interference coefficient of the user terminal to the resource block RB and the interference coefficient of the 5G small base station to the resource block RB in a preset weight table.
S150: and respectively obtaining the interference coefficient of the user terminal to the resource block RB and the weight value of the interference coefficient of the 5G small base station to the resource block RB in the preset weight table according to the preset weight table.
S160: and comprehensively scoring the resource block RB according to the weighted value of the interference coefficient of the user terminal to the resource block RB and the weighted value of the interference coefficient of the 5G small base station to the resource block RB.
S170: and selecting the resource blocks RB of the comprehensive score TOP-K as elements to form a service resource block RB set.
S180: and adjusting the transmitting power of the 5G small base station according to the service resource block RB set so as to adjust the service distance of the 5G small base station to the user terminal.
It can be understood that both the user terminal and the 5G small base station have some interference to the resource block RB. In order to further improve the service distance of the 5G small base station to the user terminal, the resource blocks RB which are less interfered are screened out to form a service resource block RB set. And then, the transmitting power of the 5G small base station is adjusted according to the service resource block RB set, so that the service distance of the 5G small base station to the user terminal can be adjusted, and the service efficiency is improved.
In a specific embodiment provided by the present application, resource blocks RB with less interference are screened out to form a service resource block RB set, which is specifically represented as:
acquiring an interference coefficient of a user terminal to a resource block RB and an interference coefficient of a 5G small base station to the resource block RB;
establishing a mapping relation of an interference coefficient of a user terminal to a Resource Block (RB) and an interference coefficient of a 5G small base station to the Resource Block (RB) in a preset weight table;
respectively obtaining the interference coefficient of the user terminal to the resource block RB and the weight value of the interference coefficient of the 5G small base station to the resource block RB in the preset weight table according to the preset weight table;
comprehensively scoring the resource block RB according to the weighted value of the interference coefficient of the user terminal to the resource block RB and the weighted value of the interference coefficient of the 5G small base station to the resource block RB;
and selecting the resource blocks RB of the comprehensive score TOP-K as elements to form a service resource block RB set.
Further, in order to improve the efficiency of screening the resource block RB, the method and the device construct a preset weight table to represent the mapping relationship between the interference coefficient of the user terminal to the resource block RB and the screening weight value, and the mapping relationship between the interference coefficient of the 5G small base station to the resource block RB and the screening weight value.
And the preset weight table divides interference coefficient intervals of a plurality of user terminals to the resource block RB, interference coefficient intervals of a plurality of 5G small base stations to the resource block RB, and screening weight values corresponding to the interference coefficient intervals. The interference coefficient interval can be understood as an interference severity level. Generally, the higher the interference severity level of a resource block RB, the lower the corresponding screening weight value.
Further, after the screening weight value of each resource block RB is obtained according to the preset weight table, each resource block RB can be comprehensively scored according to the screening weight value of each resource block RB. Namely, the resource blocks RB are arranged in a rule that the screening weight value is from high to low. And then selecting resource blocks RB with screening weighted values TOP-K to form a service resource block RB set. And finally, adjusting the transmitting power of the 5G small base station according to the service resource block RB set so as to adjust the service distance of the 5G small base station to the user terminal.
It should also be noted that the required number K of resource blocks RB calculated from the service quality QoS requirement is actually the minimum number of resource blocks RB to meet the service quality requirement. In order to further improve the service distance of the 5G small cell to the user terminal, the method for adjusting the service distance of the 5G small cell provided by the application further includes:
determining Resource Blocks (RB) in an idle state;
and adding the resource block RB in the idle state into a service resource block RB set by taking the resource block RB in the idle state as an element.
It can be understood that, by adding the idle resource block RB to the service resource block RB set, the transmission power of the 5G small base station can be further increased, and the service distance of the 5G small base station to the user terminal can be further increased.
Of course, the method of determining the resource block RB in the idle state may be represented as:
carrying out time stamp marking on resource blocks RB in an idle state;
and when the time stamp length of the resource block RB in the idle state exceeds the allowable threshold value, adding the service resource block RB set.
The screening scheme has higher flexibility, thereby avoiding enough scheduling space when the 5G small base station serves a plurality of user terminals.
Further, in another embodiment provided by the present application, in consideration that the interference of the normal user terminal to the resource block RB and the interference of the 5G small base station to the resource block RB are stable, in order to improve the screening efficiency of the resource block RB, the method for adjusting the service distance of the 5G small base station further includes:
recording a user identifier of a user terminal;
saving the resource blocks RB in the service resource block RB set as historical recommended resource blocks RB;
establishing an association relation between a historical recommended Resource Block (RB) and a user identifier;
when a service request including the service quality QoS requirement from the user terminal is received again, the user identification is identified;
determining a historical recommended Resource Block (RB) associated with the user identifier according to the user identifier;
and taking the historical recommended resource blocks RB as elements to form a service resource block RB set.
Therefore, when the same user requests the same service next time, the historical recommended resource block RB can be directly selected as the service resource block RB set, and then the transmitting power of the 5G small base station is adjusted according to the service resource block RB set so as to adjust the service distance of the 5G small base station to the user terminal.
Of course, considering that the present application adds the resource blocks RB in the idle state as elements to the service resource block RB set, at this time, some of the historically recommended resource blocks RB are also resource blocks RB in the idle state at that time. The resource blocks RB in this idle state may be in an active state the next time the same user requests the same service. If the historical recommended resource blocks RB are directly selected as the service resource block RB set, fluctuation can occur when the 5G small base station serves other user terminals.
Further, to improve the stability of the implementation of the method for adjusting the service distance of the 5G small cell, in an embodiment provided in the present application, the method for adjusting the service distance of the 5G small cell further includes:
recording a user identifier of a user terminal;
saving the resource blocks RB in the service resource block RB set as historical recommended resource blocks RB;
establishing an association relation between a historical recommended Resource Block (RB) and a user identifier and a mapping relation of the historical recommended Resource Block (RB) in a preset weight table;
when a service request including the service quality QoS requirement from the user terminal is received again, the user identification is identified;
determining a historical recommended Resource Block (RB) associated with the user identifier according to the user identifier;
obtaining a weight value of a historical recommended Resource Block (RB) according to a preset weight table;
and comprehensively scoring the resource blocks RB according to the weighted values of the interference coefficients of the user terminal to the resource blocks RB, the weighted values of the interference coefficients of the 5G small base stations to the resource blocks RB and the weighted values of the historical recommended resource blocks RB.
The mapping relation of the historical recommended resource blocks RB in a preset weight table is established, and the setting of the historical weight values corresponding to the historical recommended resource blocks RB in the preset weight table is equivalent to the setting of the historical weight values corresponding to the historical recommended resource blocks RB in the preset weight table. Therefore, when the same user requests the same service next time, a history weight value is calculated for the comprehensive score of the history recommended resource block RB. Therefore, the element composition of the service resource block RB set is dynamically adjusted, and the method for adjusting the service distance of the 5G small base station is more stable.
Further, in view of the service processing capability of the 5G small cell, that is, in view of the KPI indicator of the 5G small cell, in order to avoid that the number of resource blocks RB allocated in each service resource block RB does not meet the service requirement due to too many user terminals being served by a single 5G small cell, in another specific embodiment provided in the present application, the method for adjusting the service distance of the 5G small cell further includes:
acquiring KPI indexes of the 5G small base stations;
when the KPI of the 5G small base station is in a first preset threshold value, allowing Resource Blocks (RB) in an idle state to serve as elements, and adding a service Resource Block (RB) set;
and when the KPI of the 5G small base station is in a second preset threshold value, not allowing the resource block RB in the idle state as an element, and adding a service resource block RB set.
In summary, the method for adjusting the service distance of the 5G small cell improves the service distance of the 5G small cell to the user terminal by intelligently allocating the RB power of the resource block. And a screening weight value and a historical weight value are introduced to achieve the technical effect of self-learning of the 5G small base station service distance adjusting method. Meanwhile, resource blocks RB in an idle state are intelligently called to be added into a service resource block RB set, the service distance of the 5G small base station to the user terminal is further improved, and the operation stability of the method for adjusting the service distance of the 5G small base station is also improved.
Referring to fig. 2, in order to support the method for adjusting the service distance of the 5G small cell, the present application further provides a device 100 for adjusting the service distance of the 5G small cell, including:
a receiving module 11, configured to receive a service request including a QoS requirement from a user equipment;
the scoring module 12 is configured to calculate a required number K of resource blocks RB according to a service quality QoS requirement; the system is also used for acquiring the interference coefficient of the user terminal to the resource block RB and the interference coefficient of the 5G small base station to the resource block RB; the mapping relation of the interference coefficient of the user terminal to the resource block RB and the interference coefficient of the 5G small base station to the resource block RB in the preset weight table is established; the system is also used for respectively obtaining the interference coefficient of the user terminal to the resource block RB and the weight value of the interference coefficient of the 5G small base station to the resource block RB in the preset weight table according to the preset weight table; the system is also used for carrying out comprehensive scoring on the resource block RB according to the weighted value of the interference coefficient of the user terminal to the resource block RB and the weighted value of the interference coefficient of the 5G small base station to the resource block RB; the method is also used for selecting the resource block RB of the comprehensive score TOP-K as an element to form a service resource block RB set;
and the scheduling module 13 is configured to adjust the transmission power of the 5G small base station according to the service resource block RB set, so as to adjust the service distance of the 5G small base station to the user terminal.
It will be appreciated that the user terminal has radio access capability. When the user terminal has service requirements, the user terminal takes the required service and the service quality QoS requirements as service request data and sends the service request data to the 5G small base station.
The receiving module 11 in the 5G small cell service distance adjusting apparatus 100 receives a service request including a service quality QoS requirement from a user terminal. Wherein, Quality of Service (QoS) is used to evaluate the capability of the server to satisfy the customer Service requirement.
Then, the scoring module 12 in the 5G small base station service distance adjusting device 100 calculates the required number K of resource blocks RB according to the service quality QoS requirement.
It is noted that the traffic quality of service QoS requirements comprise required transmission bandwidth parameters.
The scoring module 12 calculates the required number K of resource blocks RB according to the following relation:
required transmission bandwidth subcarrier width RB number of subcarriers per RB K
In the relation, the subcarrier width is 15K and the number of subcarriers per RB is 12.
Through the above relation, the scoring module 12 can calculate the required number K of resource blocks RB according to the QoS requirement of the service quality.
It should also be noted that both the user terminal and the 5G small base station have some interference to the resource block RB. In order to further increase the service distance of the 5G small base station to the user terminal, the scoring module 12 screens out the resource blocks RB with less interference, so as to form a service resource block RB set. Then, the scheduling module 13 in the 5G small base station service distance adjusting apparatus 100 adjusts the transmission power of the 5G small base station according to the service resource block RB set, so that not only the service distance of the 5G small base station to the user terminal can be adjusted, but also the service efficiency is improved.
In a specific embodiment provided by the present application, the scoring module 12 screens out resource blocks RB with less interference to form a service resource block RB set, which is specifically represented as:
acquiring an interference coefficient of a user terminal to a resource block RB and an interference coefficient of a 5G small base station to the resource block RB;
establishing a mapping relation of an interference coefficient of a user terminal to a Resource Block (RB) and an interference coefficient of a 5G small base station to the Resource Block (RB) in a preset weight table;
respectively obtaining the interference coefficient of the user terminal to the resource block RB and the weight value of the interference coefficient of the 5G small base station to the resource block RB in the preset weight table according to the preset weight table;
comprehensively scoring the resource block RB according to the weighted value of the interference coefficient of the user terminal to the resource block RB and the weighted value of the interference coefficient of the 5G small base station to the resource block RB;
and selecting the resource blocks RB of the comprehensive score TOP-K as elements to form a service resource block RB set.
Further, in order to improve the efficiency of screening the resource block RB, the scoring module 12 constructs a preset weight table to represent a mapping relationship between an interference coefficient of the user terminal to the resource block RB and the screening weight value, and a mapping relationship between an interference coefficient of the 5G small base station to the resource block RB and the screening weight value.
And the preset weight table divides interference coefficient intervals of a plurality of user terminals to the resource block RB, interference coefficient intervals of a plurality of 5G small base stations to the resource block RB, and screening weight values corresponding to the interference coefficient intervals. The interference coefficient interval can be understood as an interference severity level. Generally, the higher the interference severity level of a resource block RB, the lower the corresponding screening weight value.
Further, after obtaining the screening weight value of each resource block RB according to the preset weight table, the scoring module 12 may perform comprehensive scoring on each resource block RB according to the screening weight value of each resource block RB. Namely, the scoring module 12 arranges the resource blocks RB in a rule that the filtering weight value is from high to low. Then, the scoring module 12 selects the resource blocks RB with the screening weight value TOP-K to form a service resource block RB set. And finally, the scheduling module 13 adjusts the transmitting power of the 5G small base station according to the service resource block RB set, so as to adjust the service distance of the 5G small base station to the user terminal.
It should also be noted that the required number K of resource blocks RB calculated from the service quality QoS requirement is actually the minimum number of resource blocks RB to meet the service quality requirement. In order to further improve the service distance of the 5G small cell to the user terminal, the scoring module 12 is further configured to:
determining Resource Blocks (RB) in an idle state;
and taking the resource block RB in the idle state as an element, and adding the element into a service resource block RB set.
It can be understood that, the scoring module 12 adds the resource blocks RB in the idle state to the service resource block RB set, so as to further improve the transmission power of the 5G small base station, and further increase the service distance of the 5G small base station to the user terminal.
Of course, the method for the scoring module 12 to determine the resource blocks RB in the idle state may be represented as:
carrying out time stamp marking on the resource block RB in the idle state;
and when the time stamp length of the resource block RB in the idle state exceeds the allowable threshold value, adding the service resource block RB set.
The screening scheme has higher flexibility, thereby avoiding enough scheduling space when the 5G small base station serves a plurality of user terminals.
Further, in another embodiment provided by the present application, in consideration that the interference of the normal user terminal to the resource block RB and the interference of the 5G small base station to the resource block RB are stable, in order to improve the screening efficiency of the resource block RB, the scoring module 12 may be further configured to:
recording a user identifier of a user terminal;
saving the resource blocks RB in the service resource block RB set as historical recommended resource blocks RB;
establishing an association relation between a historical recommended Resource Block (RB) and a user identifier;
when a service request including the service quality QoS requirement from the user terminal is received again, the user identification is identified;
determining a historical recommended Resource Block (RB) associated with the user identifier according to the user identifier;
and taking the historical recommended resource blocks RB as elements to form a service resource block RB set.
In this way, when the same user requests the same service next time, the scoring module 12 may directly select the historical recommended resource block RB as the service resource block RB set, and then the scheduling module 13 adjusts the transmission power of the 5G small base station according to the service resource block RB set, so as to adjust the service distance of the 5G small base station to the user terminal.
Of course, considering that the scoring module 12 adds the resource blocks RB in the idle state as elements to the service resource block RB set, at this time, some of the historically recommended resource blocks RB are also resource blocks RB in the idle state at that time. The resource blocks RB in this idle state may be in an active state the next time the same user requests the same service. If the scoring module 12 directly selects the historical recommended resource blocks RB as the set of service resource blocks RB, it may cause the 5G small base station to fluctuate when serving other user terminals.
Further, in order to improve the operation stability of the apparatus 100 for adjusting the service distance of the 5G small base station, in a preferred embodiment provided in the present application, the scoring module 12 is further configured to:
recording a user identifier of a user terminal;
saving the resource blocks RB in the service resource block RB set as historical recommended resource blocks RB;
establishing an association relation between a historical recommended Resource Block (RB) and a user identifier and a mapping relation of the historical recommended Resource Block (RB) in a preset weight table;
when a service request including the service quality QoS requirement from the user terminal is received again, the user identification is identified;
determining a historical recommended Resource Block (RB) associated with the user identifier according to the user identifier;
obtaining a weight value of a historical recommended Resource Block (RB) according to a preset weight table;
and comprehensively scoring the resource blocks RB according to the weighted values of the interference coefficients of the user terminal to the resource blocks RB, the weighted values of the interference coefficients of the 5G small base stations to the resource blocks RB and the weighted values of the historical recommended resource blocks RB.
The scoring module 12 establishes a mapping relationship of the historical recommended resource blocks RB in a preset weight table, which is equivalent to setting a historical weight value corresponding to the historical recommended resource blocks RB in the preset weight table. Thus, when the same user requests the same service next time, the scoring module 12 calculates one more history weight value for the comprehensive score of the history recommended resource block RB. Thus, the element composition of the RB set of the service resource blocks is dynamically adjusted, so that the operation of the apparatus 100 for adjusting the service distance of the 5G small base station is more stable.
Further, in view of the service processing capability of the 5G small base station, that is, in view of the KPI indicator of the 5G small base station, in order to avoid that the number of resource blocks RB allocated in each service resource block RB does not meet the service requirement due to too many user terminals being served by a single 5G small base station, in another specific embodiment provided in the present application, the scoring module 12 is further configured to:
acquiring KPI indexes of the 5G small base stations;
when the KPI of the 5G small base station is in a first preset threshold value, allowing Resource Blocks (RB) in an idle state to serve as elements, and adding a service Resource Block (RB) set;
and when the KPI of the 5G small base station is in a second preset threshold value, not allowing the resource block RB in the idle state as an element, and adding a service resource block RB set.
In summary, the apparatus 100 for adjusting service distance of a 5G small cell provided in the present application improves the service distance of the 5G small cell to the user terminal by intelligently allocating RB power. The technical effect of self-learning of the 5G small base station service distance adjusting device 100 is achieved by introducing a screening weight value and a history weight value. Meanwhile, the resource block RB in the idle state is intelligently called to be added into the service resource block RB set, so that the service distance of the 5G small base station to the user terminal is further improved, and the operation stability of the 5G small base station service distance adjusting device 100 is also improved.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement that there is an element defined as "comprising" … … does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims (10)

1. A method for adjusting service distance of a 5G small base station is characterized by comprising the following steps:
receiving a service request including a QoS requirement of a service from a user terminal;
calculating the required number K of resource blocks RB according to the service quality QoS requirement;
acquiring an interference coefficient of a user terminal to a resource block RB and an interference coefficient of a 5G small base station to the resource block RB;
establishing a mapping relation of an interference coefficient of a user terminal to a Resource Block (RB) and an interference coefficient of a 5G small base station to the Resource Block (RB) in a preset weight table;
respectively obtaining the interference coefficient of the user terminal to the resource block RB and the weight value of the interference coefficient of the 5G small base station to the resource block RB in the preset weight table according to the preset weight table;
comprehensively scoring the resource block RB according to the weighted value of the interference coefficient of the user terminal to the resource block RB and the weighted value of the interference coefficient of the 5G small base station to the resource block RB;
selecting resource blocks RB of the TOP-K comprehensive score as elements to form a service resource block RB set;
and adjusting the transmitting power of the 5G small base station according to the service resource block RB set so as to adjust the service distance of the 5G small base station to the user terminal.
2. The method for adjusting service distance of 5G small cell as claimed in claim 1, wherein said method further comprises the steps of:
determining Resource Blocks (RB) in an idle state;
and adding the resource block RB in the idle state into a service resource block RB set by taking the resource block RB in the idle state as an element.
3. The method for adjusting service distance of 5G small cell as claimed in claim 2, wherein said method further comprises the steps of:
recording a user identifier of a user terminal;
saving the resource blocks RB in the service resource block RB set as historical recommended resource blocks RB;
establishing an association relation between a historical recommended Resource Block (RB) and a user identifier;
when a service request including the service quality QoS requirement from the user terminal is received again, the user identification is identified;
determining a historical recommended Resource Block (RB) associated with the user identifier according to the user identifier;
and taking the historical recommended resource blocks RB as elements to form a service resource block RB set.
4. The method for adjusting service distance of 5G small cell as claimed in claim 2, wherein said method further comprises the steps of:
recording a user identifier of a user terminal;
saving the resource blocks RB in the service resource block RB set as historical recommended resource blocks RB;
establishing an association relation between a historical recommended Resource Block (RB) and a user identifier and a mapping relation of the historical recommended Resource Block (RB) in a preset weight table;
when a service request including the service quality QoS requirement from the user terminal is received again, the user identification is identified;
determining a historical recommended Resource Block (RB) associated with the user identifier according to the user identifier;
obtaining a weight value of a historical recommended Resource Block (RB) according to a preset weight table;
and comprehensively scoring the resource blocks RB according to the weighted values of the interference coefficients of the user terminal to the resource blocks RB, the weighted values of the interference coefficients of the 5G small base stations to the resource blocks RB and the weighted values of the historical recommended resource blocks RB.
5. The method for adjusting service distance of 5G small cell as claimed in claim 4, wherein said method further comprises the steps of:
acquiring KPI indexes of the 5G small base stations;
when the KPI of the 5G small base station is in a first preset threshold value, allowing Resource Blocks (RB) in an idle state to serve as elements, and adding a service Resource Block (RB) set;
and when the KPI of the 5G small base station is in a second preset threshold value, not allowing the resource block RB in the idle state as an element, and adding a service resource block RB set.
6. A service distance adjusting device for a 5G small cell, comprising:
a receiving module, configured to receive a service request including a QoS requirement from a user equipment;
the scoring module is used for calculating the required number K of the resource blocks RB according to the service quality QoS requirement; the system is also used for acquiring the interference coefficient of the user terminal to the resource block RB and the interference coefficient of the 5G small base station to the resource block RB; the mapping relation of the interference coefficient of the user terminal to the resource block RB and the interference coefficient of the 5G small base station to the resource block RB in the preset weight table is established; the system is also used for respectively obtaining the interference coefficient of the user terminal to the resource block RB and the weight value of the interference coefficient of the 5G small base station to the resource block RB in the preset weight table according to the preset weight table; the system is also used for carrying out comprehensive scoring on the resource block RB according to the weighted value of the interference coefficient of the user terminal to the resource block RB and the weighted value of the interference coefficient of the 5G small base station to the resource block RB; the method is also used for selecting the resource block RB of the comprehensive score TOP-K as an element to form a service resource block RB set;
and the scheduling module is used for adjusting the transmitting power of the 5G small base station according to the service resource block RB set so as to adjust the service distance of the 5G small base station to the user terminal.
7. The apparatus of claim 6, wherein the scoring module is further configured to:
determining Resource Blocks (RB) in an idle state;
and adding the resource block RB in the idle state into a service resource block RB set by taking the resource block RB in the idle state as an element.
8. The apparatus of claim 7, wherein the scoring module is further configured to:
recording a user identifier of a user terminal;
saving the resource blocks RB in the service resource block RB set as historical recommended resource blocks RB;
establishing an association relation between a historical recommended Resource Block (RB) and a user identifier;
when a service request including the service quality QoS requirement from the user terminal is received again, the user identification is identified;
determining a historical recommended Resource Block (RB) associated with the user identifier according to the user identifier;
and taking the historical recommended resource blocks RB as elements to form a service resource block RB set.
9. The apparatus for adjusting service distance of a 5G small base station as claimed in claim 7, wherein the scoring module is further configured to:
recording a user identifier of a user terminal;
saving the resource blocks RB in the service resource block RB set as historical recommended resource blocks RB;
establishing an association relation between a historical recommended Resource Block (RB) and a user identifier and a mapping relation of the historical recommended Resource Block (RB) in a preset weight table;
when receiving a service request including a service quality QoS requirement from the user terminal again, identifying a user identifier;
determining a historical recommended Resource Block (RB) associated with the user identifier according to the user identifier;
obtaining a weight value of a historical recommended Resource Block (RB) according to a preset weight table;
and comprehensively scoring the resource blocks RB according to the weighted values of the interference coefficients of the user terminal to the resource blocks RB, the weighted values of the interference coefficients of the 5G small base stations to the resource blocks RB and the weighted values of the historical recommended resource blocks RB.
10. The apparatus of claim 9, wherein the scoring module is further configured to:
acquiring KPI indexes of the 5G small base stations;
when the KPI of the 5G small base station is in a first preset threshold value, allowing Resource Blocks (RB) in an idle state to serve as elements, and adding a service Resource Block (RB) set;
and when the KPI of the 5G small base station is in a second preset threshold value, not allowing the resource block RB in the idle state as an element, and adding a service resource block RB set.
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