CN112235725B - Method for automatically realizing regional broadcast based on 5G D2D technology - Google Patents
Method for automatically realizing regional broadcast based on 5G D2D technology Download PDFInfo
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- CN112235725B CN112235725B CN202011202855.4A CN202011202855A CN112235725B CN 112235725 B CN112235725 B CN 112235725B CN 202011202855 A CN202011202855 A CN 202011202855A CN 112235725 B CN112235725 B CN 112235725B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/283—Power depending on the position of the mobile
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/383—TPC being performed in particular situations power control in peer-to-peer links
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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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
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Abstract
The invention provides a method for automatically realizing regional broadcast based on a 5G D2D technology, which comprises the following steps of: after acquiring the message of sending the regional broadcast of the cell, the 5G base station gNB limits the ID mark of the message of the regional broadcast and the position range boundary of the broadcast message; sending the region broadcast message to each D2D terminal in a D2D mode; after receiving a message broadcasted by a cell area, a D2D terminal judges whether the broadcast message of the message ID is received by the D2D terminal and is distributed and transmitted, so as to judge whether the message is a repeated message, if the message is the repeated message, the message is not processed, and if the message is not the repeated message, the D2D terminal transmits the broadcast message of the cell area in a D2D direct connection communication mode, wherein in the transmission process, the radio frequency transmitting power of the D2D area broadcast is required to be calculated according to the current position of the terminal and the distance of the position range boundary of the broadcast message. Therefore, signaling broadcast storm is prevented, the defects of a cellular network are overcome, user experience is improved, and meanwhile, the message is prevented from being broadcast in a cross-region mode.
Description
Technical Field
The invention belongs to the technical field of communication, and particularly relates to a method for automatically realizing regional broadcast based on a 5G D2D technology.
Background
The 5G D2D (Device-to-Device) terminal direct connection technology means that adjacent terminals can perform data transmission in a direct connection communication mode in a close range without forwarding through a base station. Due to the advantages of short distance and direct connection of the D2D technology, the wireless resource use efficiency can be improved, and the network coverage range can be expanded, so that a great deal of research is carried out in the 5G construction, and the D2D technology can be applied to more scenes in the future. However, in the current regional broadcast, information broadcast information is repeatedly spread due to mutual communication with terminals in a region during broadcast message transmission, or regional broadcast messages within an originally preset range are spread to the outside of the region by the terminals in the region, that is, signaling broadcast storm is easily caused in the prior art, and cross-regional broadcast is easily caused.
In view of the above, there is a need for a method and system for solving the above technical problem, which can overcome the above problem by identifying broadcast information and dynamically adjusting the transmission power of a D2D broadcast signal according to the distance between the current location and the boundary of the location range.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a method for automatically realizing regional broadcast based on a 5G d2d technology, and aims to solve the problems that signaling broadcast storm is easily caused and cross-regional broadcast is easily caused in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for automatically realizing regional broadcast based on a 5G D2D technology is characterized by comprising the following steps:
after the 10.5G base station gNB acquires the message of issuing the cell area broadcast, ID marking is carried out on the message of the area broadcast and the boundary of the position range of the broadcast message is limited;
s20, sending the region broadcast message to each D2D terminal in a D2D mode;
s30, after receiving the message broadcasted by the cell area, the D2D terminal judges whether the broadcast message of the message ID is received by the D2D terminal and is distributed and transmitted, so as to judge whether the message is a repeated message, if the message is the repeated message, the step S40 is carried out, and if the message is not the repeated message, the step S50 is carried out;
s40. The D2D terminal filters the message and does not process the message;
s50, the D2D terminal transmits the cell area broadcast message in a D2D direct communication mode, wherein in the transmission process, the radio frequency transmitting power of the D2D area broadcast needs to be calculated according to the distance between the current position of the terminal and the position range boundary of the broadcast message.
Preferably, the radio frequency transmitting power of the D2D area broadcast is calculated according to the distance between the current position of the terminal and the position range boundary to which the broadcast message belongs, and is obtained according to actual measurement of the current network, when the distance between the D2D terminal and the range boundary is larger, the transmitting power is increased, and when the distance is smaller, the transmitting power is decreased.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a method for automatically realizing regional broadcast based on a 5G D2D technology, which comprises the following steps: after the 10.5G base station gNB acquires the message of issuing the cell area broadcast, ID marking is carried out on the message of the area broadcast and the boundary of the position range of the broadcast message is limited; s20, sending the regional broadcast message to each D2D terminal in a D2D mode; s30, after receiving the message broadcasted by the cell area, the D2D terminal judges whether the broadcast message of the message ID is received by the D2D terminal and is distributed and transmitted, so as to judge whether the message is a repeated message, if the message is the repeated message, the step S40 is carried out, and if the message is not the repeated message, the step S50 is carried out; s40. The D2D terminal filters the message and does not process the message; s50, the D2D terminal transmits the cell area broadcast message in a D2D direct communication mode, wherein in the transmission process, the radio frequency transmitting power of the D2D area broadcast needs to be calculated according to the distance between the current position of the terminal and the position range boundary of the broadcast message. The transmitting power of the D2D broadcast signal is dynamically adjusted through the identification of the broadcast information and the distance between the current position and the boundary of the broadcast position range, so that a signaling broadcast storm is prevented, the defects of a cellular network are overcome, the user experience is improved, and meanwhile, the message is prevented from being broadcast in a cross-region mode.
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FIG. 1 is a block flow diagram of a preferred embodiment of the present invention;
FIG. 2 is a diagram illustrating the processing effect of the preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-2, the method for automatically implementing regional broadcast based on the 5G d2d technology provided by the present invention is characterized by comprising the following steps:
after the S10.5G base station gNB acquires the message of the area broadcast of the issued cell, ID marking is carried out on the message of the area broadcast and the boundary of the position range of the broadcast message is limited;
s20, sending the region broadcast message to each D2D terminal in a D2D mode;
s30, after receiving the message broadcasted by the cell area, the D2D terminal judges whether the broadcast message of the message ID is received by the D2D terminal and is distributed and transmitted, so as to judge whether the message is a repeated message, if the message is the repeated message, the step S40 is carried out, and if the message is not the repeated message, the step S50 is carried out;
s40. The D2D terminal filters the message and does not process the message;
s50, the D2D terminal transmits the cell area broadcast message in a D2D direct communication mode, wherein in the transmission process, the radio frequency transmitting power of the D2D area broadcast needs to be calculated according to the distance between the current position of the terminal and the position range boundary of the broadcast message.
Specifically, if there are three D2D terminals in total, as shown in fig. 2, after acquiring a message for issuing a cell area broadcast, a 5G D2D-1, a D2D-2, a D2D-3, and a 5G base station gNB respectively performs ID marking on the message for the area broadcast and defines a position range boundary to which the broadcast message belongs, where the ID marking means that each area broadcast message is assigned a specific ID, that is, a string of letters and numbers, for uniquely identifying the area broadcast message; position range boundary definition: that is, the boundary latitude and longitude of the location range can be defined in the regional broadcast message, if the broadcast message is only suitable for a certain residential cell, the latitude and longitude range of the cell needs to be marked, such as the boundary latitude and longitude of east, west, south and north. After receiving the cell area broadcast message, the D2D terminal judges whether the broadcast message of the message ID is received and distributed and transmitted by the D2D terminal, so as to judge whether the message is repeated, if the message is the repeated message, the D2D terminal does not process the message, if the message is not the repeated message, the D2D terminal transmits the cell area broadcast in a D2D direct connection communication mode, wherein the radio frequency transmitting power of the D2D area broadcast is required to be calculated according to the current position of the terminal and the distance of the message range boundary, so that the signaling transmission storm is reduced, the defects of a cellular network are remedied, and the user experience is improved.
In some embodiments, the radio frequency transmission power of the D2D area broadcast is calculated according to the distance between the current position of the terminal and the position range boundary to which the broadcast message belongs, and is obtained according to actual measurement in the current network, and when the distance between the D2D terminal and the range boundary is larger, the transmission power is increased, and when the distance is smaller, the transmission power is decreased. Specifically, for a specific terminal, if the distance is 100m, how large the required transmission power is, and the distance is 50 m, how large the required transmission power is, which can be set according to the actual test data of the terminal.
In summary, the working principle of the invention is as follows:
the invention provides a method for automatically realizing regional broadcast based on a 5G D2D technology, which comprises the following steps of: after the 10.5G base station gNB acquires the message of issuing the cell area broadcast, ID marking is carried out on the message of the area broadcast and the boundary of the position range of the broadcast message is limited; s20, sending the region broadcast message to each D2D terminal in a D2D mode; s30, after receiving the message broadcasted by the cell area, the D2D terminal judges whether the broadcast message of the message ID is received by the D2D terminal and is distributed and transmitted, so as to judge whether the message is a repeated message, if the message is the repeated message, the step S40 is carried out, and if the message is not the repeated message, the step S50 is carried out; s40. The D2D terminal filters the message and does not process the message; s50, the D2D terminal transmits the cell area broadcast message in a D2D direct communication mode, wherein in the transmission process, the radio frequency transmitting power of the D2D area broadcast is required to be calculated according to the distance between the current position of the terminal and the position range boundary of the broadcast message. The transmitting power of the D2D broadcast signal is dynamically adjusted through the identification of the broadcast information and the distance between the current position and the boundary of the position range of the broadcast, so that a signaling broadcast storm is prevented, the defects of a cellular network are overcome, and the cross-regional broadcast of the message is prevented while the user experience is improved.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (2)
1. A method for automatically realizing regional broadcast based on a 5G D2D technology is characterized by comprising the following steps:
after the 10.5G base station gNB acquires the message of issuing the cell area broadcast, ID marking is carried out on the message of the area broadcast and the boundary of the position range of the broadcast message is limited;
s20, sending the regional broadcast message to each D2D terminal in a D2D mode;
s30. After receiving the message broadcasted by the cell area, the D2D terminal judges whether the broadcast message of the message ID is received by the D2D terminal and is distributed and transmitted, thereby judging whether the message is a repeated message, if the message is the repeated message, the step S40 is carried out, and if the message is not the repeated message, the step S50 is carried out;
s40. The D2D terminal filters the message and does not process the message;
s50, the D2D terminal transmits the cell area broadcast message in a D2D direct communication mode, wherein in the transmission process, the radio frequency transmitting power of the D2D area broadcast needs to be calculated according to the distance between the current position of the terminal and the position range boundary of the broadcast message.
2. The method for automatically implementing regional broadcast based on the 5G D2D technology as claimed in claim 1, wherein the radio frequency transmission power of the D2D regional broadcast is calculated according to the distance between the current position of the terminal and the boundary of the position range to which the broadcast message belongs, and is obtained according to actual measurement in the current network, and when the distance between the D2D terminal and the boundary of the range is large, the transmission power is increased, and when the distance is small, the transmission power is decreased.
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| KR20140073065A (en) * | 2012-12-06 | 2014-06-16 | 한국전자통신연구원 | Method and apparatus for device to device multicast communication in cellular mobile systems |
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Patent Citations (5)
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| CN103702427A (en) * | 2013-12-24 | 2014-04-02 | 中国科学院计算技术研究所 | Device discovery method for device-to-device communication in LTE (long term evolution) system |
| CN104837108A (en) * | 2014-02-07 | 2015-08-12 | 中兴通讯股份有限公司 | Device to device broadcast communication method and user device |
| WO2016032201A2 (en) * | 2014-08-28 | 2016-03-03 | 엘지전자 주식회사 | Method for relaying communication in wireless communication system and device for performing same |
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