CN113473623B - Frequency multiplexing system and method for ensuring user rate based on 5G millimeter waves - Google Patents

Frequency multiplexing system and method for ensuring user rate based on 5G millimeter waves Download PDF

Info

Publication number
CN113473623B
CN113473623B CN202110732671.7A CN202110732671A CN113473623B CN 113473623 B CN113473623 B CN 113473623B CN 202110732671 A CN202110732671 A CN 202110732671A CN 113473623 B CN113473623 B CN 113473623B
Authority
CN
China
Prior art keywords
base station
bandwidth
spectrum
throughput
macro base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202110732671.7A
Other languages
Chinese (zh)
Other versions
CN113473623A (en
Inventor
贝斐峰
王强
李新
华昉
刘海林
房树森
彭雄根
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Information Consulting and Designing Institute Co Ltd
Original Assignee
China Information Consulting and Designing Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Information Consulting and Designing Institute Co Ltd filed Critical China Information Consulting and Designing Institute Co Ltd
Priority to CN202110732671.7A priority Critical patent/CN113473623B/en
Publication of CN113473623A publication Critical patent/CN113473623A/en
Application granted granted Critical
Publication of CN113473623B publication Critical patent/CN113473623B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides a frequency multiplexing system and a method for ensuring user rate based on 5G millimeter waves, wherein the system comprises the following steps: the frequency spectrum dividing module is used for dividing the frequency spectrum of the 5G millimeter wave into a macro base station bottom-preserving sub-frequency spectrum and a micro base station bottom-preserving sub-frequency spectrum; the initial allocation module is used for allocating the frequency spectrum of the 5G millimeter wave to the user in an initial stage; the throughput acquisition module is used for acquiring the cell throughput of a base station, wherein the base station comprises a macro base station and a plurality of micro base stations in the macro base station; the dynamic adjustment module is used for dynamically adjusting the frequency spectrum of the 5G millimeter wave according to the cell throughput of the base station, wherein the macro base station reduces the micro base station bottom protection sub-frequency spectrum, and the micro base station reduces the macro base station bottom protection sub-frequency spectrum. Compared with the prior art, the method is suitable for a 4G/5G millimeter wave cooperative networking architecture, realizes maximum utilization of frequency spectrum, can ensure high-value user network experience, gives attention to interference, and has stronger applicability and operation and maintenance convenience.

Description

Frequency multiplexing system and method for ensuring user rate based on 5G millimeter waves
Technical Field
The application relates to the technical field of mobile communication, in particular to a frequency multiplexing system and a frequency multiplexing method for ensuring user rate based on 5G millimeter waves.
Background
5G millimeter wave is 5G+, which can also be called post 5G or B5G, the frequency spectrum of the millimeter wave is expanded to 100GHz, and the single spectrum bandwidth can reach 100-200MHz. Millimeter wave has wide spectrum and high transmissibility, but has weak coverage due to weak penetrability of the spectrum. Therefore, 5G millimeter waves or 4G and 4G are cooperated to form a network, wherein 4G is mainly responsible for carrying voice, medium and low speed data services, while 5G millimeter waves are mainly used for carrying high speed data services such as 8K video, AR/VR in dense areas such as urban CBD, business district and the like, and high quality service is provided for high value users.
Because of limited coverage, 5G millimeter waves are realized by adopting micro base stations to build a network on a large scale, a macro base station is mainly used as an anchor point station to access users, and main user data is carried by arranging a large number of micro base stations.
The existing scheme mainly aims at accessing users as many as possible, balances the resources of the users, is not suitable for the situation that the 5G millimeter waves need to mainly guarantee the core user experience, and the voice and low-speed service of the common users are borne by the 4G network.
Disclosure of Invention
The application aims to: aiming at the 5G millimeter wave network characteristics, the scheme takes the user throughput as a discrimination basis, ensures the spectrum bandwidth of the micro base station as much as possible, ensures the maximum utilization of the spectrum under the condition of meeting the 4G/5G cooperative networking, and gives the high-value user optimal network experience.
In a first aspect, the present application provides a frequency multiplexing system for ensuring a user rate based on 5G millimeter waves, comprising:
the frequency spectrum dividing module is used for dividing the frequency spectrum of the 5G millimeter wave into a macro base station bottom-preserving sub-frequency spectrum and a micro base station bottom-preserving sub-frequency spectrum;
the initial allocation module is used for allocating the frequency spectrum of the 5G millimeter wave to the user in an initial stage;
the throughput obtaining module is used for obtaining the cell throughput of a base station, wherein the base station comprises a macro base station and a plurality of micro base stations in the macro base station;
the dynamic adjustment module is used for dynamically adjusting the frequency spectrum of the 5G millimeter wave according to the cell throughput of the base station, wherein the macro base station reduces the micro base station bottom-protecting sub-frequency spectrum, and the micro base station reduces the macro base station bottom-protecting sub-frequency spectrum.
With reference to the first aspect, in one implementation manner, the spectrum division module includes:
the interference judging unit is used for comparing the interference between the micro base stations in the area with a preset interference threshold according to the network application condition, wherein the network application condition comprises the following steps: actual 5G millimeter wave network commercial condition, application condition and regional traffic condition;
the first dividing unit is used for dividing the micro base station bottom protection sub-spectrum into a plurality of sub-spectrums which are larger than the macro base station bottom protection sub-spectrum if the interference between the micro base stations in the area is smaller than or equal to a preset interference threshold value and the area telephone traffic load is larger than a preset load threshold value;
the second dividing unit is configured to divide the macro base station bottom-protecting sub-spectrum into a plurality of sub-spectrums, if the interference between the micro base stations in the area is greater than a preset interference threshold. In the application, the coverage access of the macro base station is ensured.
With reference to the first aspect, in one implementation manner, the dynamic adjustment module includes:
the throughput judging unit is used for comparing the throughput of the user with a preset throughput threshold value in a delay time after the whole bandwidth is allocated to the user, wherein the preset throughput threshold value comprises a first throughput threshold value and a second throughput threshold value;
a bandwidth reduction unit, configured to sequentially reduce bandwidth on the basis of the total bandwidth when user throughput is less than or equal to a first throughput threshold in a lag time, where the lag time is defined by an operator;
and the bandwidth increasing unit is used for sequentially increasing the bandwidths on the basis of the current bandwidth when the user throughput is larger than the second throughput threshold value in the hysteresis time.
With reference to the first aspect, in one implementation, the first throughput threshold is expressed as:
C(1-M×B/A)η
wherein C represents a cell user throughput threshold defined by an operator, M represents a decision coefficient of the mth reduced bandwidth, M is an integer greater than or equal to 1, M is a decision coefficient of the first reduced bandwidth when m=1, the maximum value of M is (a-B)/B, a represents the total bandwidth, B represents the bandwidth variation, a is an integer multiple of the bandwidth variation B, η is a load factor, and the value range of η is 0.5-0.8.
With reference to the first aspect, in one implementation manner, the bandwidth reducing unit includes:
a macro base station bandwidth reduction subunit, configured to randomly reduce a bandwidth on a micro base station base protection sub-spectrum through the macro base station, where the bandwidth that is randomly reduced is any number of bandwidth variation amounts B until the macro base station user has a bandwidth of the macro base station base protection sub-spectrum, the macro base station base protection sub-spectrum is denoted as X to x+a0, where X represents a system bandwidth initial value, and A0 represents a boundary frequency point that distinguishes the macro base station base protection sub-spectrum from the micro base station base protection sub-spectrum, that is, when the macro base station user only allocates the spectrum X to x+a0, even if a user throughput of the macro base station user is still less than a macro base station base protection flow c×a0/a×η in a lag time, the bandwidth is not reduced any more; specifically, in the present application, for example: the existing 3.4G frequency band of 5G is 3400MHz-3500MHz; if the boundary frequency point A0 is 3430MHz,3400MHz-3430MHz is the macro base station guard spectrum, and 3430MHz-3500MHz is the micro base station guard spectrum.
The micro base station bandwidth reduction subunit is configured to randomly reduce bandwidth on a macro base station base-preserving sub-spectrum through the micro base station, where the randomly reduced bandwidth is any number of bandwidth variation amounts B until the micro base station user has the bandwidth of the micro base station base-preserving sub-spectrum, that is, micro base station base-preserving traffic C (a-A0) η/a, and the micro base station base-preserving sub-spectrum is represented as x+a0 to x+a, where x+a represents a bandwidth terminal value.
With reference to the first aspect, in one implementation, the second throughput threshold is expressed as:
C(1-N×B/A)η
wherein N represents a decision coefficient of the nth increased bandwidth, and N is an integer.
With reference to the first aspect, in one implementation manner, the bandwidth increasing unit includes:
a macro base station bandwidth increasing subunit, configured to randomly increase bandwidth on a micro base station base-preserving sub-spectrum through the macro base station, where the bandwidth that is randomly increased is any number of bandwidth variable amounts B, and the throughput of the macro base station after bandwidth increase should be at least greater than the macro base station base-preserving flow rate c×a0×η/a;
the micro base station bandwidth increasing subunit is configured to randomly increase bandwidth on the macro base station guaranteed sub-spectrum through the micro base station, where the bandwidth that is randomly increased is any number of bandwidth variation amounts B, and the throughput of the micro base station after bandwidth increase should be at least greater than the micro base station guaranteed traffic C (A-A 0) η/a.
With reference to the first aspect, in one implementation manner, the initial allocation module is integrated in an indoor device or a core network of the base station in a software form, so as to implement allocation of the 5G millimeter waves. In the application, the initial allocation module can be integrated in base station BBU equipment or a core network, and is a software function module for allocating spectrum bandwidth according to network throughput. The core network can see:https://baike.baidu.com/item/％E6％A0％B8％E5％BF％83％E7％BD％91/ 9849330。
in a second aspect, the present application provides a frequency multiplexing method for ensuring a user rate based on 5G millimeter waves, the method being applied to the system of any one of the first aspects, the method comprising:
step 1, in an initial state, distributing all bandwidths for macro base station users and micro base station users through a frequency spectrum dividing module and an initial distributing module;
step 2, calculating the cell throughput of the base station through the throughput obtaining module;
step 3, when the user throughput of the macro base station is smaller than a first throughput threshold in the hysteresis time, randomly reducing the bandwidth on the micro base station base-preserving sub-spectrum through a dynamic adjustment module until the macro base station only has the bandwidth macro base station base-preserving sub-spectrum;
similarly, when the user throughput of the micro base station is smaller than the first throughput threshold in the hysteresis time, the bandwidth is randomly reduced on the macro base station bottom-protecting sub-spectrum through the dynamic adjustment module until the micro base station only has the bandwidth micro base station bottom-protecting sub-spectrum;
step 4, when the user throughput of the macro base station is larger than a second throughput threshold in the hysteresis time, increasing the bandwidth on the micro base station bottom-protecting sub-frequency spectrum through a dynamic adjustment module;
similarly, when the throughput of the micro base station user is larger than the second throughput in the hysteresis time, the bandwidth is increased on the macro base station bottom-preserving sub-spectrum through the dynamic adjustment module.
The scheme operation process comprises the following steps: initially, an initial allocation module allocates the whole bandwidth A for macro base station and micro base station users. When the total required bandwidth of the macro base station user is continuously smaller than C (1-MxB/A) eta in the hysteresis time T, randomly reducing the bandwidth B on the micro base station bottom-keeping frequency spectrum F3 (X+A0 to X+A), and the like until the macro base station only has the bandwidth of the macro base station bottom-keeping frequency spectrum F2; similarly, when the micro base station is continuously smaller than C (1-MxB/A) eta in the delay time T, the bandwidth B is randomly reduced on the macro base station guard spectrum F2 (X to X+A0), and the like until the micro base station only has the bandwidth of the micro base station guard spectrum F3.
In addition, when the macro base station user only has the bandwidth of the macro base station guard spectrum F2 and the micro base station user only has the bandwidth of the micro base station guard spectrum F3, the bandwidth is not reduced any more. When the total required bandwidth of the user is continuously larger than C (1-MxB/A) eta in the hysteresis time T, the macro base station randomly increases the bandwidth B (the throughput of the macro base station is at least larger than CA0 eta/A) in the micro base station guard spectrum F3, and the micro base station randomly increases the bandwidth B (the throughput of the micro base station is at least larger than C (A-A 0) eta/A) in the macro base station guard spectrum F2.
In the prior art, a frequency multiplexing scheme designed for 5G millimeter wave characteristics is not provided temporarily, and the situation of core user experience cannot be guaranteed mainly. The method is adopted, aiming at the 5G millimeter wave network characteristics, the user throughput is taken as a judging basis, the spectrum bandwidth of the micro base station is ensured as much as possible, the maximum utilization of the spectrum is ensured under the condition of meeting the 4G/5G cooperative networking, and the optimal network experience is given to high-value users.
Drawings
In order to more clearly illustrate the technical solution of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic diagram of frequency multiplexing based on single-station traffic in a frequency multiplexing method for ensuring user rate by using 5G millimeter waves provided in the embodiment part of the present application;
fig. 2 is a schematic diagram of an example of frequency multiplexing based on single-station traffic in a frequency multiplexing method for guaranteeing user rate by using 5G millimeter waves according to an embodiment of the present application.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description.
The embodiment of the application discloses a frequency multiplexing method for ensuring the user rate by 5G millimeter waves, which is applied to an application scene of 5G millimeter waves or a cooperative networking with 4G, wherein 4G is mainly responsible for bearing voice, medium-low speed data service, and 5G millimeter waves are mainly used for bearing 8K video, AR/VR and other high-speed data service in urban CBD, business circles, civilian squares and other people-stream dense areas, thereby providing high-quality service for high-value users. The service experience of the 5G high-end user can be provided under the condition of 4G/5G cooperative networking.
The present embodiment provides a frequency multiplexing system for ensuring a user rate based on 5G millimeter waves, including:
the frequency spectrum dividing module is used for dividing the frequency spectrum of the 5G millimeter wave into a macro base station bottom-preserving sub-frequency spectrum and a micro base station bottom-preserving sub-frequency spectrum;
the initial allocation module is used for allocating the frequency spectrum of the 5G millimeter wave to the user in an initial stage;
specifically, in this embodiment, as shown in fig. 1, the spectrum division module divides the 5G millimeter wave spectrum F1 into a macro base station guard spectrum F2 and a micro base station guard spectrum F3, where the network bandwidth is a, and the cell structure is a macro base station and a large number of micro base stations in the macro base station. The spectrum F1 is initially allocated to the user, the spectrum is dynamically adjusted according to the total cell service amount of the base station, the sub-spectrum F3 is reduced by the macro base station, and the sub-spectrum F2 is reduced by the micro base station. The network can allocate more frequency spectrums under the condition of higher service demands, so that the peak throughput of a cell with high service demand is improved, and the perception of users is improved; and under the condition of less service requirements, less frequency spectrum is allocated, and the interference to other cells is reduced so as to ensure the resource allocation and the network performance of the high-end user.
In this embodiment, the relationship between macro base station and micro base station: referring to a network neighbor list of 5G millimeter waves, specifically, each base station configures the neighbor list before an operator opens, and only the base station and the sector configuring the neighbor list can be switched, so that micro base stations are allocated to adjacent macro base stations. In the 4G and 5G millimeter wave cooperative networking, traffic of 5G millimeter waves is mainly carried by the micro base station load.
The throughput obtaining module is used for obtaining the cell throughput of a base station, wherein the base station comprises a macro base station and a plurality of micro base stations in the macro base station; in this embodiment, the single-cell peak throughput of the network or the threshold value defined by the operator is set as the cell throughput.
The dynamic adjustment module is used for dynamically adjusting the frequency spectrum of the 5G millimeter wave according to the cell throughput of the base station, wherein the macro base station reduces the micro base station bottom-protecting sub-frequency spectrum, and the micro base station reduces the macro base station bottom-protecting sub-frequency spectrum.
In the frequency multiplexing system for ensuring the user rate based on the 5G millimeter waves provided by the embodiment of the application, the frequency spectrum dividing module comprises:
the interference judging unit is used for comparing the interference between the micro base stations in the area with a preset interference threshold according to the network application condition, wherein the network application condition comprises the following steps: actual 5G millimeter wave network commercial condition, application condition and regional traffic condition;
the first dividing unit is used for dividing the micro base station bottom protection sub-spectrum into a plurality of sub-spectrums which are larger than the macro base station bottom protection sub-spectrum if the interference between the micro base stations in the area is smaller than or equal to a preset interference threshold value and the area telephone traffic load is larger than a preset load threshold value;
the second dividing unit is configured to divide the macro base station bottom-protecting sub-spectrum into a plurality of sub-spectrums, if the interference between the micro base stations in the area is greater than a preset interference threshold. In this embodiment, the coverage access of the macro base station is guaranteed.
In the frequency multiplexing system for ensuring the user rate based on the 5G millimeter waves provided by the embodiment of the application, the dynamic adjustment module comprises:
the throughput judging unit is used for comparing the throughput of the user with a preset throughput threshold value in a delay time after the whole bandwidth is allocated to the user, wherein the preset throughput threshold value comprises a first throughput threshold value and a second throughput threshold value;
a bandwidth reduction unit, configured to sequentially reduce bandwidth on the basis of the total bandwidth when user throughput is less than or equal to a first throughput threshold in a lag time, where the lag time is defined by an operator;
and the bandwidth increasing unit is used for sequentially increasing the bandwidths on the basis of the current bandwidth when the user throughput is larger than the second throughput threshold value in the hysteresis time.
In the frequency multiplexing system for ensuring the user rate based on the 5G millimeter waves provided by the embodiment of the present application, the first throughput threshold is expressed as:
C(1-M×B/A)η
wherein C represents a cell user throughput threshold defined by an operator, M represents a decision coefficient of the mth reduced bandwidth, M is an integer greater than or equal to 1, M is a decision coefficient of the first reduced bandwidth when m=1, the maximum value of M is (a-B)/B, a represents the total bandwidth, B represents the bandwidth variation, a is an integer multiple of the bandwidth variation B, η is a load factor, and the value range of η is 0.5-0.8.
In the frequency multiplexing system for ensuring the user rate based on the 5G millimeter wave provided by the embodiment of the present application, the bandwidth reduction unit includes:
a macro base station bandwidth reduction subunit, configured to randomly reduce a bandwidth on a micro base station base protection sub-spectrum through the macro base station, where the bandwidth that is randomly reduced is any number of bandwidth variation amounts B until the macro base station user has a bandwidth of the macro base station base protection sub-spectrum, the macro base station base protection sub-spectrum is denoted as X to x+a0, where X represents a system bandwidth initial value, and A0 represents a boundary frequency point that distinguishes the macro base station base protection sub-spectrum from the micro base station base protection sub-spectrum, that is, when the macro base station user only allocates the spectrum X to x+a0, even if a user throughput of the macro base station user is still less than a macro base station base protection flow c×a0/a×η in a lag time, the bandwidth is not reduced any more; specifically, in this embodiment, for example: the existing 3.4G frequency band of 5G is 3400MHz-3500MHz; if the boundary frequency point A0 is 3430MHz,3400MHz-3430MHz is the macro base station guard spectrum, and 3430MHz-3500MHz is the micro base station guard spectrum.
The micro base station bandwidth reduction subunit is configured to randomly reduce bandwidth on a macro base station base-preserving sub-spectrum through the micro base station, where the randomly reduced bandwidth is any number of bandwidth variation amounts B until the micro base station user has the bandwidth of the micro base station base-preserving sub-spectrum, that is, micro base station base-preserving traffic C (a-A0) η/a, and the micro base station base-preserving sub-spectrum is represented as x+a0 to x+a, where x+a represents a bandwidth terminal value.
In the frequency multiplexing system for ensuring the user rate based on the 5G millimeter waves provided by the embodiment of the present application, the second throughput threshold is expressed as:
C(1-N×B/A)η
wherein N represents a decision coefficient of the nth increased bandwidth, and N is an integer.
In the frequency multiplexing system for ensuring the user rate based on the 5G millimeter wave provided by the embodiment of the application, the bandwidth increasing unit comprises:
a macro base station bandwidth increasing subunit, configured to randomly increase bandwidth on a micro base station base-preserving sub-spectrum through the macro base station, where the bandwidth that is randomly increased is any number of bandwidth variable amounts B, and the throughput of the macro base station after bandwidth increase should be at least greater than the macro base station base-preserving flow rate c×a0×η/a;
the micro base station bandwidth increasing subunit is configured to randomly increase bandwidth on the macro base station guaranteed sub-spectrum through the micro base station, where the bandwidth that is randomly increased is any number of bandwidth variation amounts B, and the throughput of the micro base station after bandwidth increase should be at least greater than the micro base station guaranteed traffic C (A-A 0) η/a.
In the frequency multiplexing system for ensuring the user rate based on the 5G millimeter waves provided by the embodiment of the application, the initial allocation module is integrated in the indoor equipment or the core network of the base station in the form of software, so that the allocation of the 5G millimeter waves is realized. In this embodiment, the initial allocation module may be integrated in the base station BBU device or the core network, and is a software functional module for allocating spectrum bandwidth according to the network throughput. The core network can see: https:// baike. Baidu. Com/item/%E6% A0% B8% E5% BF 83% E7% BD 91/9849330.
In this embodiment, in combination with the frequency multiplexing system for ensuring the user rate based on the 5G millimeter wave, the present application further provides a frequency multiplexing method for ensuring the user rate based on the 5G millimeter wave, where the method is applied to the foregoing system, and includes:
step 1, in an initial state, distributing all bandwidths for macro base station users and micro base station users through a frequency spectrum dividing module and an initial distributing module;
step 2, calculating the cell throughput of the base station through the throughput obtaining module;
step 3, when the user throughput of the macro base station is smaller than a first throughput threshold in the hysteresis time, randomly reducing the bandwidth on the micro base station base-preserving sub-spectrum through a dynamic adjustment module until the macro base station only has the bandwidth macro base station base-preserving sub-spectrum;
similarly, when the user throughput of the micro base station is smaller than the first throughput threshold in the hysteresis time, the bandwidth is randomly reduced on the macro base station bottom-protecting sub-spectrum through the dynamic adjustment module until the micro base station only has the bandwidth micro base station bottom-protecting sub-spectrum;
step 4, when the user throughput of the macro base station is larger than a second throughput threshold in the hysteresis time, increasing the bandwidth on the micro base station bottom-protecting sub-frequency spectrum through a dynamic adjustment module;
similarly, when the throughput of the micro base station user is larger than the second throughput in the hysteresis time, the bandwidth is increased on the macro base station bottom-preserving sub-spectrum through the dynamic adjustment module.
Examples:
assuming that the spectrum bandwidth F1 of the 5G millimeter wave network of a certain mobile company is 200MHz; the macro base station bottom-protecting sub-spectrum F2 is X to X+60MHz, and the micro base station bottom-protecting sub-spectrum F3 is X+60 to X+200MHz; the cell user throughput threshold C is 200Mbps; the load factor eta is 0.5; the bandwidth variation B is increased/decreased to 20MHz; the hysteresis time T is 2 seconds; the system allocation module is integrated in the core network.
Referring to fig. 2, the scheme operates as follows:
during initial operation, the system processing unit distributes 200MHz bandwidth to both the macro base station user and the micro base station user;
when the throughput requirement of the user is continuously less than 90Mbps within 2s, the user of the micro base station randomly reduces 20MHz in F2 [ X MHz to (X+60) MHz ], and the user shares 180MHz bandwidth;
when the throughput requirement of the user is continuously less than 80Mbps within 2s, the user of the micro base station randomly reduces 20MHz in F2 (X MHz to (X+60) MHz), and the macro base station shares 160MHz of bandwidth;
when the user throughput demand is continuously less than 70Mbps within 2s, the micro base station users randomly reduce 20MHz in F2 [ X MHz to (X+60) MHz ], the macro base station shares 140MHz of bandwidth, and at the moment, the micro base station users only remain the bottom-keeping frequency spectrum F3.
The micro base station user maintains the guard spectrum F3 unchanged after the user throughput requirement continues to be less than 60Mbps (or less rate) within 2 s.
The macro base station user bandwidth reduction process is similar to that of the micro base station, but F3 spectrum is reduced, the guaranteed bottom spectrum is F2, and when only F2 is left, the spectrum is not reduced any more.
When the throughput requirement of the micro base station user is continuously greater than 200 (1-N/10) Mbps within 2s, (N is 1, 2 and 3), the macro base station randomly allocates (4-N) 20MHz bandwidth in F2, and allocates 140MHz+ (4-N) 20MHz. The macro base station adds spectrum procedures similar to those of the micro base station.
Compared with the prior art, the application has the following technical advantages:
firstly, the application is suitable for a 4G/5G millimeter wave cooperative networking architecture, and realizes the maximum utilization of frequency spectrum. Specifically, in the 4G/5G millimeter wave cooperative networking architecture, the 4G is mainly responsible for carrying voice, medium-low speed data services, the 5G millimeter wave is mainly used for carrying high-speed data services such as 8K video, AR/VR and the like, and the 5G millimeter wave is mainly used for providing high-quality services for high-value users with high-speed requirements. Aiming at the relevant characteristics of the 4G/5G millimeter wave cooperative networking, the application takes the throughput of the user as the judgment basis, ensures the spectrum bandwidth of the micro base station as much as possible, ensures the maximum utilization of the spectrum under the condition of meeting the 4G/5G cooperative networking, and gives the high-value user the optimal network experience.
Secondly, the application ensures the interference on the basis of high-value user network experience. According to the scheme, the frequency spectrum is allocated according to service requirements, so that network experience of high-value users is ensured, and meanwhile, the bottom-preserving frequency spectrum is set for macro base stations and micro base stations, so that the macro base stations and the micro base stations can be ensured not to interfere with each other under extreme conditions, and the basic soundness of the network is ensured.
Again, the network of the present application is highly adaptable. Once commercial, the scheme is widely suitable for building relevant areas of the 5G millimeter wave network, and especially can well consider network capacity and interference in areas with huge data demands such as core business circles, civilian squares and the like.
Finally, the network of the application is convenient to operate and maintain. The scheme is simple to realize, the macro base station and the micro base station can dynamically adjust the frequency spectrum according to the traffic in the cell, the base station cooperation is not needed, the parameter is not needed to be modified when the 5G millimeter wave network moves/increases or decreases the base station, and the operation and the maintenance are intelligent.
In a specific implementation, the present application further provides a computer storage medium, where the computer storage medium may store a program, where the program may include some or all of the steps in each embodiment of the macro-micro base station cooperative frequency multiplexing system and method based on single-station traffic, where the method is applicable to 5G. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), a random-access memory (random access memory, RAM), or the like.
It will be apparent to those skilled in the art that the techniques of embodiments of the present application may be implemented in software plus a necessary general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present application may be embodied in essence or what contributes to the prior art in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the embodiments or some parts of the embodiments of the present application.
The same or similar parts between the various embodiments in this specification are referred to each other. The embodiments of the present application described above do not limit the scope of the present application.

Claims (9)

1. A frequency reuse system for securing a user rate based on 5G millimeter waves, comprising:
the frequency spectrum dividing module is used for dividing the frequency spectrum of the 5G millimeter wave into a macro base station bottom-preserving sub-frequency spectrum and a micro base station bottom-preserving sub-frequency spectrum;
the initial allocation module is used for allocating the frequency spectrum of the 5G millimeter wave to the user in an initial stage;
the throughput obtaining module is used for obtaining the cell throughput of a base station, wherein the base station comprises a macro base station and a plurality of micro base stations in the macro base station;
the dynamic adjustment module is used for dynamically adjusting the frequency spectrum of the 5G millimeter wave according to the cell throughput of the base station;
in an initial state, distributing all bandwidths for macro base station users and micro base station users through a frequency spectrum dividing module and an initial distributing module; when the user throughput of the macro base station is smaller than a first throughput threshold in the hysteresis time, randomly reducing the bandwidth on the micro base station base-preserving sub-spectrum through a dynamic adjustment module until the macro base station only has the bandwidth macro base station base-preserving sub-spectrum; and when the user throughput of the micro base station is smaller than the first throughput threshold in the hysteresis time, randomly reducing the bandwidth on the macro base station bottom-protecting sub-spectrum through the dynamic adjustment module until the micro base station only has the bandwidth micro base station bottom-protecting sub-spectrum.
2. The frequency reuse system for guaranteeing user rate based on 5G millimeter waves according to claim 1, wherein said spectrum division module comprises:
the interference judging unit is used for comparing the interference between the micro base stations in the area with a preset interference threshold according to the network application condition, wherein the network application condition comprises the following steps: actual 5G millimeter wave network commercial condition, application condition and regional traffic condition;
the first dividing unit is used for dividing the micro base station bottom protection sub-spectrum into a plurality of sub-spectrums which are larger than the macro base station bottom protection sub-spectrum if the interference between the micro base stations in the area is smaller than or equal to a preset interference threshold value and the area telephone traffic load is larger than a preset load threshold value;
the second dividing unit is configured to divide the macro base station bottom-protecting sub-spectrum into a plurality of sub-spectrums, if the interference between the micro base stations in the area is greater than a preset interference threshold.
3. The frequency multiplexing method for ensuring user rate based on 5G millimeter waves according to claim 1, wherein the dynamic adjustment module comprises:
the throughput judging unit is used for comparing the throughput of the user with a preset throughput threshold value in a delay time after the whole bandwidth is allocated to the user, wherein the preset throughput threshold value comprises a first throughput threshold value and a second throughput threshold value;
a bandwidth reduction unit, configured to sequentially reduce bandwidth on the basis of the total bandwidth when user throughput is less than or equal to a first throughput threshold in a lag time, where the lag time is defined by an operator;
and the bandwidth increasing unit is used for sequentially increasing the bandwidths on the basis of the current bandwidth when the user throughput is larger than the second throughput threshold value in the hysteresis time.
4. A frequency reuse method based on 5G millimeter wave ensuring user rate according to claim 3, characterized in that said first throughput threshold is expressed as:
C(1-M×B/A)η
wherein C represents a cell user throughput threshold defined by an operator, M represents a decision coefficient of the mth reduced bandwidth, M is an integer greater than or equal to 1, M is a decision coefficient of the first reduced bandwidth when m=1, the maximum value of M is (a-B)/B, a represents the total bandwidth, B represents the bandwidth variation, a is an integer multiple of the bandwidth variation B, η is a load factor, and the value range of η is 0.5-0.8.
5. The frequency reuse method for securing a user rate based on a 5G millimeter wave according to claim 4, wherein the bandwidth reduction unit comprises:
a macro base station bandwidth reduction subunit, configured to randomly reduce a bandwidth on a micro base station base protection sub-spectrum through the macro base station, where the bandwidth that is randomly reduced is any number of bandwidth variation amounts B until the macro base station user has a bandwidth of the macro base station base protection sub-spectrum, the macro base station base protection sub-spectrum is denoted as X to x+a0, where X represents a system bandwidth initial value, and A0 represents a boundary frequency point that distinguishes the macro base station base protection sub-spectrum from the micro base station base protection sub-spectrum, that is, when the macro base station user only allocates the spectrum X to x+a0, even if a user throughput of the macro base station user is still less than a macro base station base protection flow c×a0/a×η in a lag time, the bandwidth is not reduced any more;
the micro base station bandwidth reduction subunit is configured to randomly reduce bandwidth on a macro base station base-preserving sub-spectrum through the micro base station, where the randomly reduced bandwidth is any number of bandwidth variation amounts B until the micro base station user has the bandwidth of the micro base station base-preserving sub-spectrum, that is, micro base station base-preserving traffic C (a-A0) η/a, and the micro base station base-preserving sub-spectrum is represented as x+a0 to x+a, where x+a represents a bandwidth terminal value.
6. A frequency reuse method based on 5G millimeter wave ensuring user rate according to claim 3, characterized in that said second throughput threshold is expressed as:
C(1-N×B/A)η
wherein N represents a decision coefficient of the nth increased bandwidth, and N is an integer.
7. The frequency multiplexing method for ensuring a user rate based on 5G millimeter waves according to claim 4, wherein the bandwidth increasing unit comprises:
a macro base station bandwidth increasing subunit, configured to randomly increase bandwidth on a micro base station base-preserving sub-spectrum through the macro base station, where the bandwidth that is randomly increased is any number of bandwidth variable amounts B, and the throughput of the macro base station after bandwidth increase should be at least greater than the macro base station base-preserving flow rate c×a0×η/a;
the micro base station bandwidth increasing subunit is configured to randomly increase bandwidth on the macro base station guaranteed sub-spectrum through the micro base station, where the bandwidth that is randomly increased is any number of bandwidth variation amounts B, and the throughput of the micro base station after bandwidth increase should be at least greater than the micro base station guaranteed traffic C (A-A 0) η/a.
8. The frequency multiplexing method for ensuring user rate based on 5G millimeter waves according to claim 1, wherein the initial allocation module is integrated in an indoor device or a core network of a base station in a form of software, and allocation of the 5G millimeter waves is achieved.
9. A frequency reuse method applied to the system according to any of the claims 1-8, characterized by comprising:
step 1, in an initial state, distributing all bandwidths for macro base station users and micro base station users through a frequency spectrum dividing module and an initial distributing module;
step 2, calculating the cell throughput of the base station through the throughput obtaining module;
step 3, when the user throughput of the macro base station is smaller than a first throughput threshold in the hysteresis time, randomly reducing the bandwidth on the micro base station base-preserving sub-spectrum through a dynamic adjustment module until the macro base station only has the bandwidth macro base station base-preserving sub-spectrum;
similarly, when the user throughput of the micro base station is smaller than the first throughput threshold in the hysteresis time, the bandwidth is randomly reduced on the macro base station bottom-protecting sub-spectrum through the dynamic adjustment module until the micro base station only has the bandwidth micro base station bottom-protecting sub-spectrum;
step 4, when the user throughput of the macro base station is larger than a second throughput threshold in the hysteresis time, increasing the bandwidth on the micro base station bottom-protecting sub-frequency spectrum through a dynamic adjustment module;
similarly, when the throughput of the micro base station user is larger than the second throughput in the hysteresis time, the bandwidth is increased on the macro base station bottom-preserving sub-spectrum through the dynamic adjustment module.
CN202110732671.7A 2021-06-30 2021-06-30 Frequency multiplexing system and method for ensuring user rate based on 5G millimeter waves Active CN113473623B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110732671.7A CN113473623B (en) 2021-06-30 2021-06-30 Frequency multiplexing system and method for ensuring user rate based on 5G millimeter waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110732671.7A CN113473623B (en) 2021-06-30 2021-06-30 Frequency multiplexing system and method for ensuring user rate based on 5G millimeter waves

Publications (2)

Publication Number Publication Date
CN113473623A CN113473623A (en) 2021-10-01
CN113473623B true CN113473623B (en) 2023-12-15

Family

ID=77874057

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110732671.7A Active CN113473623B (en) 2021-06-30 2021-06-30 Frequency multiplexing system and method for ensuring user rate based on 5G millimeter waves

Country Status (1)

Country Link
CN (1) CN113473623B (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103052073A (en) * 2013-01-27 2013-04-17 西安电子科技大学 Frequency spectrum resource distribution method based on user rate requirement in heterogeneous wireless network
CN103338470A (en) * 2013-06-14 2013-10-02 中国联合网络通信集团有限公司 Spectrum demand forecasting method and device
CN103428703A (en) * 2012-05-21 2013-12-04 北京邮电大学 Spectrum resource accessing method and system
CN103476035A (en) * 2013-09-11 2013-12-25 东南大学 Method for inter-cell interference coordination based on subframe alignment on TD-LTE-A heterogeneous network
WO2014096950A2 (en) * 2012-12-21 2014-06-26 Orange Method and apparatus for coordinated multipoint transmission
KR20140079581A (en) * 2012-12-17 2014-06-27 성균관대학교산학협력단 Method for selecting frequency band in femtocell and communication system including macrocell base and femtocell base using shared sub-band
CN104105099A (en) * 2013-04-07 2014-10-15 电信科学技术研究院 Dynamic spectrum allocation method and device
CN106304091A (en) * 2015-05-15 2017-01-04 索尼公司 The method and apparatus distributed for the frequency of unauthorized frequency range
CN106658514A (en) * 2016-10-26 2017-05-10 桂林电子科技大学 Energy efficiency and frequency spectrum efficiency balance method for micro base station super dense disposition heterogeneous network
CN107018515A (en) * 2017-03-03 2017-08-04 北京科技大学 Heterogeneous hierarchical LTE system fractional frequency reuse method based on intermediary's region optimizing

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103428703A (en) * 2012-05-21 2013-12-04 北京邮电大学 Spectrum resource accessing method and system
KR20140079581A (en) * 2012-12-17 2014-06-27 성균관대학교산학협력단 Method for selecting frequency band in femtocell and communication system including macrocell base and femtocell base using shared sub-band
WO2014096950A2 (en) * 2012-12-21 2014-06-26 Orange Method and apparatus for coordinated multipoint transmission
CN103052073A (en) * 2013-01-27 2013-04-17 西安电子科技大学 Frequency spectrum resource distribution method based on user rate requirement in heterogeneous wireless network
CN104105099A (en) * 2013-04-07 2014-10-15 电信科学技术研究院 Dynamic spectrum allocation method and device
CN103338470A (en) * 2013-06-14 2013-10-02 中国联合网络通信集团有限公司 Spectrum demand forecasting method and device
CN103476035A (en) * 2013-09-11 2013-12-25 东南大学 Method for inter-cell interference coordination based on subframe alignment on TD-LTE-A heterogeneous network
CN106304091A (en) * 2015-05-15 2017-01-04 索尼公司 The method and apparatus distributed for the frequency of unauthorized frequency range
CN106658514A (en) * 2016-10-26 2017-05-10 桂林电子科技大学 Energy efficiency and frequency spectrum efficiency balance method for micro base station super dense disposition heterogeneous network
CN107018515A (en) * 2017-03-03 2017-08-04 北京科技大学 Heterogeneous hierarchical LTE system fractional frequency reuse method based on intermediary's region optimizing

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Fairness of radio resource partitioning for macrocell and femtocell networks;Mastura Rosdi等;《2013 IEEE Symposium on Wireless Technology & Applications(ISWTA)》;全文 *
LTE-Femto系统中联合功率控制和频谱分配的干扰协调算法;刘莉;刘持标;吴美瑜;张萃珍;;三明学院学报(第02期);全文 *

Also Published As

Publication number Publication date
CN113473623A (en) 2021-10-01

Similar Documents

Publication Publication Date Title
EP1433339B1 (en) Allocation of channels to a base station with quality of service consideration
KR100581085B1 (en) Apparatus and method for allocating resource in mf-tdma broadband satellite system
CN106982435B (en) Capacity adjustment method and device for F-band hybrid networking
EP2262335A1 (en) Method and apparatus for multiple providers sharing carrier frequency resourse
US8457645B2 (en) Channel allocation for channel allocation tiering
CN109587802B (en) Uplink channel resource allocation method based on phased array agile wave beam
Zhang et al. Resource allocation in beam hopping communication system
US8780879B2 (en) Frequency band adjusting method, communication apparatus and frequency band adjusting apparatus
CN112601285A (en) Resource allocation method and system based on service quality in 5G scene
Johansson et al. Radio resource management in roaming based multi-operator WCDMA networks
CN113473623B (en) Frequency multiplexing system and method for ensuring user rate based on 5G millimeter waves
CN104170309B (en) A kind of method for managing resource and device
JP2006246055A (en) Channel allocation device in multiband transmission, channel allocation method, and radio base station
CN108924940B (en) Spectrum allocation and switching method based on user priority and multi-attribute judgment
CN113115401A (en) Access control method for maximizing satisfied user number in cellular network
CN111787623A (en) D2D communication resource allocation method combining power control, uplink and downlink channel allocation and mode selection
Caeiro et al. A fair mechanism of virtual radio resource management in multi-RAT wireless het-nets
CN110809272A (en) 5G interference-based macro-micro base station cooperative frequency reuse method
Yese et al. A dynamic weighted round Robin call admission (DWRR-CAC) algorithm for broadband networks
CN116367332B (en) Hierarchical control-based D2D resource allocation method under 5G system
CA2411899A1 (en) Progressive reuse partitioning for improved interference rejection in wireless packet networks
CN113133000B (en) Resource scheduling method of 5G shared micro base station
Wu et al. The degradation of bandwidth in QoS scheme for 4G mobile networks
CN107249193B (en) Wireless access point, wireless access method based on user priority and wireless access system based on user priority
CN118175550A (en) Common-frequency interference suppression method based on beam internal average four-color frequency multiplexing

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant