CN111465105A - Dynamic configuration method of two novel frame structures based on power Internet of things - Google Patents
Dynamic configuration method of two novel frame structures based on power Internet of things Download PDFInfo
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- CN111465105A CN111465105A CN202010136182.0A CN202010136182A CN111465105A CN 111465105 A CN111465105 A CN 111465105A CN 202010136182 A CN202010136182 A CN 202010136182A CN 111465105 A CN111465105 A CN 111465105A
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- 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
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- 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 invention relates to the field of power Internet of things, in particular to a dynamic configuration method of two novel frame structures based on the power Internet of things, which comprises the steps of constructing a first frame structure and a second frame structure according to the demand characteristics of uplink transmission data volume of a power system, and dynamically adjusting the proportion configuration of the first frame structure and the second frame structure by analyzing the characteristics of uplink data transmission in real time so as to meet the demand of the uplink data transmission.
Description
Technical Field
The invention relates to the field of power internet of things, in particular to a dynamic configuration method of two novel frame structures based on the power internet of things.
Background
The ubiquitous power Internet of things is an intelligent service system which fully applies modern information technologies and advanced communication technologies such as mobile interconnection, artificial intelligence and the like, realizes the interconnection of everything and man-machine interaction in all links of a power system, and has the characteristics of comprehensive state sensing, efficient information processing, convenient and flexible application and the like.
At present, the radio spectrum resources are scarce, the supply and demand contradiction of the spectrum resources is outstanding, general enterprises cannot obtain the authorization of the authorized frequency band, the resources of the unauthorized frequency band are rich, and the authorized frequency band can be used legally and freely as long as the supervision policy is met, so that the performance of the network is greatly improved. Therefore, the 5.8G unlicensed frequency band is used in the electric power Internet of things system, and the network bandwidth can be greatly improved under the condition of not increasing the frequency band authorization cost.
In the current power internet of things system, a 5.8G base station deployment structure adopts a frame structure of a traditional TD-L TE (Time Division L ong-term Evolution), 7 frame structures of the traditional TD-L TE system are mainly designed for human-human communication, the human-human communication has the characteristic of high downlink demand, downlink transmission of data such as video pictures and the like can occupy a large amount of communication resources, and the number of downlink subframes in the frame structure is larger than that of uplink subframes.
Disclosure of Invention
In order to solve the problems, the invention provides two novel frame structure dynamic configuration methods based on the power internet of things.
A dynamic configuration method for two novel frame structures based on an electric power Internet of things comprises the following steps:
constructing a first frame structure and a second frame structure according to the requirement characteristics of the uplink transmission data volume of the power system;
the proportion configuration of the first frame structure and the second frame structure is dynamically adjusted by analyzing the characteristics of uplink data transmission in real time so as to meet the requirement of uplink data transmission.
Preferably, the first frame structure includes: the method comprises the following steps of i downlink subframes, j special subframes and k uplink subframes, wherein i + j + k is 10, and i, j and k are natural numbers;
the second frame structure is all uplink subframes.
Preferably, the special subframe includes: DwPTS, GP, UpPTS.
Preferably, the constructing the first frame structure according to the requirement characteristics of the uplink transmission data volume of the power system includes:
according to the requirement characteristic of the uplink transmission data volume of the power system, the proportion of the downlink subframe, the special subframe and the uplink subframe in the first frame structure is realized by setting the values of i, j and k so as to meet the requirement of uplink and downlink data transmission.
Preferably, the dynamically adjusting the ratio configuration of the first frame structure and the second frame structure by analyzing the characteristics of the uplink data transmission in real time includes:
when the speed requirement of the uplink data transmission is smaller than a set threshold value, only using the first frame structure to realize the transmission of the uplink data;
and when the speed requirement of the uplink data transmission is greater than or equal to the set threshold, dynamically adjusting the proportion configuration of the first frame structure and the second frame structure according to the speed requirement of the uplink data transmission.
The invention can provide two novel frame structures according to the requirement characteristic of large uplink transmission data volume of the power system, greatly improves the uplink frame proportion of the power system compared with the traditional TD-L TE frame structure, improves the uplink data transmission capability, dynamically switches the configuration of the frame structure by analyzing the characteristic of uplink and downlink data transmission, and can maximize the utilization efficiency of resources.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic flow chart of a dynamic configuration method of two new frame structures based on an electric power internet of things according to an embodiment of the present invention;
fig. 2 is a structural diagram of a combination mode of a first frame structure and a second frame structure in a dynamic configuration method of two new frame structures based on an electric power internet of things according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be further described below with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
The basic idea of the invention is to provide two novel frame structures according to the requirement characteristic of large uplink transmission data volume of the power system, compared with the traditional TD-L TE frame structure, the uplink frame occupation ratio is greatly improved, the uplink data transmission capability is improved, and meanwhile, the configuration of the frame structure is dynamically switched by analyzing the characteristic of uplink and downlink data transmission, so that the utilization efficiency of resources can be maximized.
Based on the above ideas, the invention provides a dynamic configuration method of two novel frame structures based on an electric power internet of things, as shown in fig. 1, comprising the following steps:
s1: constructing a first frame structure and a second frame structure according to the requirement characteristics of the uplink transmission data volume of the power system;
s2: the proportion configuration of the first frame structure and the second frame structure is dynamically adjusted by analyzing the characteristics of uplink data transmission in real time so as to meet the requirement of uplink data transmission.
The first frame structure includes: the uplink subframe comprises i downlink subframes, j special subframes and k uplink subframes, wherein i + j + k is 10, and i, j and k are natural numbers. Wherein the special subframe includes: DwPTS (downlink pilot time slot), GP (guard interval), UpPTS (uplink pilot time slot). The DwPTS transmits downlink reference signals and may also transmit some control information. Some short RACH and SRS information may be transmitted on UpPTS. GP is the guard time between uplink and downlink. In contrast, the length of the UpPTS is relatively fixed, only two lengths of one symbol and two symbols are supported to avoid excessive options, the system design is simplified, and the GP and the DwPTS have great flexibility, which is mainly to realize variable GP length and GP position to support cell radii of various sizes.
The second frame structure is all uplink subframes, that is, 100% of resources are allocated to uplink transmission, but the transmission of control signaling and the measurement of CSI cannot be performed due to the absence of downlink subframes and special subframes, so that the second frame structure cannot be used alone.
In this embodiment, the method for constructing the first frame structure according to the requirement characteristics of the uplink transmission data volume of the power system includes: according to the requirement characteristic of the uplink transmission data volume of the power system, the proportion of the downlink subframe, the special subframe and the uplink subframe in the first frame structure is realized by setting the values of i, j and k so as to meet the requirement of uplink and downlink data transmission.
That is to say, when the demand of the uplink transmission data amount of the power system in the current time period is general, only the number i corresponding to the uplink subframe in the first frame structure needs to be set to a general size, for example, 5 or 6; when the demand of the uplink transmission data volume of the power system in the current time period is large, the number i corresponding to the uplink subframe in the first frame structure only needs to be set to be large, for example, 8. In general, the uplink data transmission method includes 1 downlink subframe, 1 special subframe and 8 uplink subframes, and the proportion of the uplink subframes reaches 80%, so that the uplink data transmission capability is greatly improved.
In this embodiment, the method for dynamically adjusting the ratio configuration of the first frame structure and the second frame structure by analyzing the characteristics of uplink data transmission in real time includes: when the speed requirement of the uplink data transmission is smaller than a set threshold value, only using the first frame structure to realize the transmission of the uplink data; and when the speed requirement of the uplink data transmission is greater than or equal to the set threshold, dynamically adjusting the proportion configuration of the first frame structure and the second frame structure according to the speed requirement of the uplink data transmission.
For the frame structure switching example shown in fig. 2, the power internet of things firstly uses the first frame structure, at a certain moment, the uplink transmission demand of the network increases, and 80% of the uplink subframe proportion of the first frame structure is not enough to support uplink transmission, so that the power internet of things is switched to the combination mode of the first frame structure and the second frame structure, the combination frame is composed of 1 first frame structure and 1 second frame structure, and the uplink subframe proportion thereof is 90%, so that the uplink transmission capacity is improved, and the uplink service transmission demand is met.
Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (5)
1. A dynamic configuration method for two novel frame structures based on the power Internet of things is characterized by comprising the following steps:
constructing a first frame structure and a second frame structure according to the requirement characteristics of the uplink transmission data volume of the power system;
the proportion configuration of the first frame structure and the second frame structure is dynamically adjusted by analyzing the characteristics of uplink data transmission in real time so as to meet the requirement of uplink data transmission.
2. The dynamic configuration method of two novel frame structures based on the power Internet of things as claimed in claim 1,
the first frame structure includes: the method comprises the following steps of i downlink subframes, j special subframes and k uplink subframes, wherein i + j + k is 10, and i, j and k are natural numbers;
the second frame structure is all uplink subframes.
3. The dynamic configuration method of two novel frame structures based on the power Internet of things as claimed in claim 2,
the special subframe includes: DwPTS, GP, UpPTS.
4. The dynamic configuration method of two novel frame structures based on the internet of things of electric power according to claim 2, wherein the constructing the first frame structure according to the demand characteristics of the uplink transmission data volume of the electric power system comprises:
according to the requirement characteristic of the uplink transmission data volume of the power system, the proportion of the downlink subframe, the special subframe and the uplink subframe in the first frame structure is realized by setting the values of i, j and k so as to meet the requirement of uplink and downlink data transmission.
5. The dynamic configuration method of two novel frame structures based on the power internet of things as claimed in claim 2, wherein the dynamically adjusting the ratio configuration of the first frame structure and the second frame structure by analyzing the characteristics of the uplink data transmission in real time comprises:
when the speed requirement of the uplink data transmission is smaller than a set threshold value, only using the first frame structure to realize the transmission of the uplink data;
and when the speed requirement of the uplink data transmission is greater than or equal to the set threshold, dynamically adjusting the proportion configuration of the first frame structure and the second frame structure according to the speed requirement of the uplink data transmission.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012092886A1 (en) * | 2011-01-07 | 2012-07-12 | 华为技术有限公司 | Method and device for sub-frame ratio configuration |
| CN106535220A (en) * | 2015-09-14 | 2017-03-22 | 大唐移动通信设备有限公司 | Dynamic TDD subframe ratio adjustment method, base station and network management device |
| US9674837B1 (en) * | 2015-01-07 | 2017-06-06 | Sprint Spectrum L.P. | Coordinated multipoint based air-interface resource scheduling |
| CN109219141A (en) * | 2017-07-07 | 2019-01-15 | 国网辽宁省电力有限公司 | Method for transmitting signals and system in a kind of electric power terminal communication access net |
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- 2020-03-02 CN CN202010136182.0A patent/CN111465105A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012092886A1 (en) * | 2011-01-07 | 2012-07-12 | 华为技术有限公司 | Method and device for sub-frame ratio configuration |
| US9674837B1 (en) * | 2015-01-07 | 2017-06-06 | Sprint Spectrum L.P. | Coordinated multipoint based air-interface resource scheduling |
| CN106535220A (en) * | 2015-09-14 | 2017-03-22 | 大唐移动通信设备有限公司 | Dynamic TDD subframe ratio adjustment method, base station and network management device |
| CN109219141A (en) * | 2017-07-07 | 2019-01-15 | 国网辽宁省电力有限公司 | Method for transmitting signals and system in a kind of electric power terminal communication access net |
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