CN111465103A - Data receiving and transmitting method based on smart power grid - Google Patents

Data receiving and transmitting method based on smart power grid Download PDF

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Publication number
CN111465103A
CN111465103A CN202010136168.0A CN202010136168A CN111465103A CN 111465103 A CN111465103 A CN 111465103A CN 202010136168 A CN202010136168 A CN 202010136168A CN 111465103 A CN111465103 A CN 111465103A
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China
Prior art keywords
scheduling
uplink
downlink
calculating
terminals
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Pending
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CN202010136168.0A
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Chinese (zh)
Inventor
孙晨
徐光年
段光
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Zhejiang Huayun Information Technology Co Ltd
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Zhejiang Huayun Information Technology Co Ltd
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Priority to CN202010136168.0A priority Critical patent/CN111465103A/en
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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
    • 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
    • H04W72/04—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
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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

Abstract

The invention relates to the field of power internet of things, in particular to a data receiving and transmitting method based on a smart power grid, which comprises the following steps: determining all terminals needing to be accessed; determining an accessed terminal user, the number of times that the user needs to be scheduled and a data transmission mode adopted by the user; aiming at each terminal user of uplink transmission, the following steps are carried out: accessing an unlicensed frequency band channel according to the sensed signal of the base station, and starting uplink scheduling; calculating an uplink CQI based on the SRS; based on the previous period value and the scheduling condition, acquiring the predicted PRB scheduling priority and the positions of the center and the edge of the UE in the current period; performing uplink scheduling including a time domain and a frequency domain and outputting statistical data of current scheduling; calculating the transmitting power of each PRB allocated by the uplink service resources; calculating an uplink traffic channel IoT; judging whether the scheduling is finished; and judging whether the data transmission of all the terminals is finished. The invention realizes the effective, safe and accurate transmission of data.

Description

Data receiving and transmitting method based on smart power grid
Technical Field
The invention relates to the field of power internet of things, in particular to a data receiving and transmitting method based on a smart power grid.
Background
In recent years, the requirements of various applications in five links of power generation, power transmission, power transformation, power distribution and power utilization of a power network on the coverage range, the quantity and the quality of electric energy of power supply and monitoring are exponentially increased, and the performance of the traditional power network cannot gradually keep up with the increasing power demand.
The Smart Grid (SG) is used as a global energy Internet foundation, and is imperative to get through the communication of the last kilometer in the face of access of massive and diversified power intelligent terminals. At present, the development of the smart grid has formed a trend that a backbone optical fiber is taken as a main body and a plurality of access technologies are developed together, and wireless communication becomes an optimal access mode for the development of the smart grid due to deployment convenience, safety and flexibility. The intelligent power grid combines a digitization technology with a traditional physical power grid technology, and utilizes advanced methods such as a modern intelligent sensing technology, a communication technology, an energy storage technology, an intelligent control technology and the like to realize a novel power system which is safer, more reliable, more economical, more efficient and more environment-friendly. Compared with a traditional power network, the automation and informatization degrees of the smart power grid are higher, the operation efficiency of the power grid can be effectively improved, and the operation reliability of the power grid is enhanced.
At present, a data transmission mode adopted for a power grid is unsafe and easily causes resource waste.
Disclosure of Invention
In order to solve the problems, the invention provides a data receiving and transmitting method based on a smart power grid.
A data transceiving method based on a smart grid comprises the following steps:
s1: determining all terminals needing to be accessed;
s2: determining an accessed terminal user, the number of times that the user needs to be scheduled and a data transmission mode adopted by the user;
s3: and finishing data transmission aiming at each uplink transmission terminal user:
s31: accessing an unlicensed frequency band channel according to the sensed signal of the base station, and starting uplink scheduling;
s32: calculating an uplink CQI based on the SRS;
s33: based on the previous period value and the scheduling condition, acquiring the predicted PRB scheduling priority and the positions of the center and the edge of the UE in the current period;
s34: performing uplink scheduling including a time domain and a frequency domain and outputting statistical data of current scheduling;
s35: calculating the transmitting power of each PRB allocated by the uplink service resources;
s36: calculating an uplink traffic channel IoT;
s37: judging whether the scheduling is finished, and if so, carrying out data statistics of service transmission; if not, dispatching the counter +1, adopting the next uplink subframe by the subframe number, and returning to the step S31;
s38: judging whether the data transmission of all the terminals is finished, if so, finishing the transmission of all the terminals; if not, the terminal count counter +1 returns to step S2;
s4: finishing data transmission aiming at each downlink transmission terminal user:
s41: selecting an unlicensed frequency band channel to access according to a channel access criterion, and starting downlink scheduling;
s42: calculating a downlink CQI based on the SRS;
s43: based on the previous period value and the scheduling condition, acquiring the predicted PRB scheduling priority and the positions of the center and the edge of the UE in the current period;
s44: performing downlink scheduling including a time domain and a frequency domain and outputting statistical data of current scheduling;
s45: whether the Pa value and the adjustment amount are adjusted in the downlink;
s46: calculating the transmitting power of each PRB allocated by the downlink service resources, and calculating the transmitting power of a downlink control channel;
s47: calculating a downlink traffic channel IoT;
s48: judging whether the scheduling is finished, and if so, carrying out data statistics of service transmission; if not, scheduling the counter +1, adopting the next downlink subframe for the subframe number, and returning to the step S4;
s49: judging whether the data transmission of all the terminals is finished, if so, finishing the transmission of all the terminals; if not, the terminal count counter +1 returns to step S2.
Preferably, the determining all terminals needing to be accessed includes:
determining all terminals needing to be accessed, wherein the terminal is represented by a set K, and the number of all terminals is represented by N; initializing a controlled base station B; initializing a specific frequency band used by the smart grid communication system and a mechanism for accessing a wireless channel.
Preferably, the obtaining, based on the previous period value and the scheduling condition, the scheduling priority of each PRB based on prediction in the current period and the positions of the center and the edge of the UE includes:
the CRRM respectively calculates the priority for each UE;
sequencing all the UE according to the calculated priority to generate an ordered UE queue, traversing each UE in the ordered UE queue by the CRRM to determine a UE center;
the radio resource management CRRM determines the edge location of each UE.
By using the present invention, the following effects can be achieved:
1. aiming at each uplink transmission terminal user, performing interference calculation, uplink ICIC calculation, uplink scheduling calculation, uplink power control calculation, uplink control channel interference judgment scheduling completion, and judgment whether all terminal data transmission is completed to realize effective, safe and accurate uplink transmission;
2. and aiming at each downlink transmission terminal user, performing interference calculation, downlink ICIC calculation, downlink scheduling calculation, downlink power control calculation, downlink control channel interference judgment scheduling completion, and judgment whether all terminal data transmission is completed to realize effective, safe and accurate downlink transmission.
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 data transceiving method based on a smart grid according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of step S3 in a data transceiving method based on a smart grid according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of step S4 in a data transceiving method based on a smart grid 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.
In the intelligent power grid system, a group of scenes that users including both uplink terminals and downlink terminals access the unlicensed frequency band for data transmission are considered. Considering that the system has N users, the central base station B assists all the user terminals in data transmission.
The invention provides a data receiving and transmitting method based on a smart power grid, which comprises the following steps as shown in figures 1-3:
s1: determining all terminals needing to be accessed;
s2: determining an accessed terminal user, the number of times that the user needs to be scheduled and a data transmission mode adopted by the user;
s3: and finishing data transmission aiming at each uplink transmission terminal user:
s31: accessing an unlicensed frequency band channel according to the sensed signal of the base station, and starting uplink scheduling;
s32: calculating an uplink CQI based on the SRS;
s33: based on the previous period value and the scheduling condition, acquiring the predicted PRB scheduling priority and the positions of the center and the edge of the UE in the current period;
s34: performing uplink scheduling including a time domain and a frequency domain and outputting statistical data of current scheduling;
s35: calculating the transmitting power of each PRB allocated by the uplink service resources;
s36: calculating an uplink traffic channel IoT;
s37: judging whether the scheduling is finished, and if so, carrying out data statistics of service transmission; if not, dispatching the counter +1, adopting the next uplink subframe by the subframe number, and returning to the step S31;
s38: judging whether the data transmission of all the terminals is finished, if so, finishing the transmission of all the terminals; if not, the terminal count counter +1 returns to step S2;
s4: finishing data transmission aiming at each downlink transmission terminal user:
s41: selecting an unlicensed frequency band channel to access according to a channel access criterion, and starting downlink scheduling;
s42: calculating a downlink CQI based on the SRS;
s43: based on the previous period value and the scheduling condition, acquiring the predicted PRB scheduling priority and the positions of the center and the edge of the UE in the current period;
s44: performing downlink scheduling including a time domain and a frequency domain and outputting statistical data of current scheduling;
s45: whether the Pa value and the adjustment amount are adjusted in the downlink;
s46: calculating the transmitting power of each PRB allocated by the downlink service resources, and calculating the transmitting power of a downlink control channel;
s47: calculating a downlink traffic channel IoT;
s48: judging whether the scheduling is finished, and if so, carrying out data statistics of service transmission; if not, scheduling the counter +1, adopting the next downlink subframe for the subframe number, and returning to the step S4;
s49: judging whether the data transmission of all the terminals is finished, if so, finishing the transmission of all the terminals; if not, the terminal count counter +1 returns to step S2.
Wherein the determining of all terminals needing to be accessed comprises:
determining all terminals needing to be accessed, wherein the terminal is represented by a set K, and the number of all terminals is represented by N; initializing a controlled base station B; initializing a specific frequency band used by the smart grid communication system and a mechanism for accessing a wireless channel.
Wherein, the obtaining of the predicted PRB scheduling priorities, UE center and edge positions in the current period based on the previous period value and the scheduling condition comprises: the CRRM respectively calculates the priority for each UE; sequencing all the UE according to the calculated priority to generate an ordered UE queue, traversing each UE in the ordered UE queue by the CRRM to determine a UE center; the radio resource management CRRM determines the edge location of each UE.
End user k for each uplink transmissionuAnd performing interference calculation, uplink ICIC calculation, uplink scheduling calculation, uplink power control calculation, uplink control channel interference judgment on whether scheduling is finished or not, and judgment on whether all terminal data transmission is finished to realize effective, safe and accurate uplink transmission.
Similarly, for each downlink transmitted end user kdAnd performing interference calculation, downlink ICIC calculation, downlink scheduling calculation, downlink power control calculation, downlink control channel interference judgment on whether scheduling is finished or not and judgment on whether all terminal data transmission is finished or not so as to realize effective, safe and accurate downlink transmission.
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 (3)

1. A data transceiving method based on a smart grid is characterized by comprising the following steps:
s1: determining all terminals needing to be accessed;
s2: determining an accessed terminal user, the number of times that the user needs to be scheduled and a data transmission mode adopted by the user;
s3: and finishing data transmission aiming at each uplink transmission terminal user:
s31: accessing an unlicensed frequency band channel according to the sensed signal of the base station, and starting uplink scheduling;
s32: calculating an uplink CQI based on the SRS;
s33: based on the previous period value and the scheduling condition, acquiring the predicted PRB scheduling priority and the positions of the center and the edge of the UE in the current period;
s34: performing uplink scheduling including a time domain and a frequency domain and outputting statistical data of current scheduling;
s35: calculating the transmitting power of each PRB allocated by the uplink service resources;
s36: calculating an uplink traffic channel IoT;
s37: judging whether the scheduling is finished, and if so, carrying out data statistics of service transmission; if not, dispatching the counter +1, adopting the next uplink subframe by the subframe number, and returning to the step S31;
s38: judging whether the data transmission of all the terminals is finished, if so, finishing the transmission of all the terminals; if not, the terminal count counter +1 returns to step S2;
s4: finishing data transmission aiming at each downlink transmission terminal user:
s41: selecting an unlicensed frequency band channel to access according to a channel access criterion, and starting downlink scheduling;
s42: calculating a downlink CQI based on the SRS;
s43: based on the previous period value and the scheduling condition, acquiring the predicted PRB scheduling priority and the positions of the center and the edge of the UE in the current period;
s44: performing downlink scheduling including a time domain and a frequency domain and outputting statistical data of current scheduling;
s45: whether the Pa value and the adjustment amount are adjusted in the downlink;
s46: calculating the transmitting power of each PRB allocated by the downlink service resources, and calculating the transmitting power of a downlink control channel;
s47: calculating a downlink traffic channel IoT;
s48: judging whether the scheduling is finished, and if so, carrying out data statistics of service transmission; if not, scheduling the counter +1, adopting the next downlink subframe for the subframe number, and returning to the step S4;
s49: judging whether the data transmission of all the terminals is finished, if so, finishing the transmission of all the terminals; if not, the terminal count counter +1 returns to step S2.
2. The smart grid-based data transceiving method according to claim 1, wherein the determining all terminals needing to be accessed comprises:
determining all terminals needing to be accessed, wherein the terminal is represented by a set K, and the number of all terminals is represented by N; initializing a controlled base station B; initializing a specific frequency band used by the smart grid communication system and a mechanism for accessing a wireless channel.
3. The method according to claim 1, wherein the obtaining the predicted scheduling priority of each PRB, the UE center and edge position of the current period based on the previous period value and the scheduling condition comprises:
the CRRM respectively calculates the priority for each UE;
sequencing all the UE according to the calculated priority to generate an ordered UE queue, traversing each UE in the ordered UE queue by the CRRM to determine a UE center;
the radio resource management CRRM determines the edge location of each UE.
CN202010136168.0A 2020-03-02 2020-03-02 Data receiving and transmitting method based on smart power grid Pending CN111465103A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2288217A2 (en) * 2009-08-19 2011-02-23 NTT DoCoMo, Inc. Inter-cell interference coordination method and base station
CN102790739A (en) * 2011-05-19 2012-11-21 北京邮电大学 Multi-cell joint ascending cooperative-scheduling method and base station
CN104411005A (en) * 2014-11-05 2015-03-11 大唐移动通信设备有限公司 Uplink transmission power control method, device and base station
US20170079057A1 (en) * 2014-05-23 2017-03-16 Datang Mobile Communications Equipment Co., Ltd. Uplink frequency selection scheduling method and device
CN110012533A (en) * 2018-01-05 2019-07-12 大唐移动通信设备有限公司 A kind of resource allocation methods and device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2288217A2 (en) * 2009-08-19 2011-02-23 NTT DoCoMo, Inc. Inter-cell interference coordination method and base station
CN102790739A (en) * 2011-05-19 2012-11-21 北京邮电大学 Multi-cell joint ascending cooperative-scheduling method and base station
US20170079057A1 (en) * 2014-05-23 2017-03-16 Datang Mobile Communications Equipment Co., Ltd. Uplink frequency selection scheduling method and device
CN104411005A (en) * 2014-11-05 2015-03-11 大唐移动通信设备有限公司 Uplink transmission power control method, device and base station
CN110012533A (en) * 2018-01-05 2019-07-12 大唐移动通信设备有限公司 A kind of resource allocation methods and device

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