CN112261637A - Self-rescue method based on 5G D2D straight-through technology - Google Patents
Self-rescue method based on 5G D2D straight-through technology Download PDFInfo
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- CN112261637A CN112261637A CN202011030746.9A CN202011030746A CN112261637A CN 112261637 A CN112261637 A CN 112261637A CN 202011030746 A CN202011030746 A CN 202011030746A CN 112261637 A CN112261637 A CN 112261637A
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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
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/50—Connection management for emergency connections
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Abstract
The invention provides a self-rescue method based on a 5G D2D straight-through technology, which comprises the following steps: s1, the master D2D terminal located in the cellular network blind area initiates a detection request containing emergency rescue information to the nearby slave D2D terminal; s2, detecting the networking capability of the nearby slave D2D terminal after receiving the probe request; s3, extracting the emergency rescue information of the probe request from the D2D terminal and sending response information to the main D2D terminal; s4, the slave D2D terminal continuously initiates a probe request containing the emergency rescue information of the master D2D terminal to other slave D2D terminals near the slave D2D terminal; s5, detecting the networking capability of other nearby slave D2D terminals after receiving the detection request, if the detection is that the network exists, extracting the emergency rescue information of the detection request and sending response information to the slave D2D terminal at the upper stage, and if the detection is that the network does not exist, returning to S4; and S6, after receiving the response information, the main D2D terminal selects a path and sends the emergency rescue information to an alarm center. Thereby ensuring the personal safety of the user.
Description
Technical Field
The invention belongs to the technical field of 5G D2D communication, and particularly relates to a self-rescue method based on a 5G D2D direct connection technology.
Background
Now, 5G D2D (Device-to-Device) terminal direct technology means that a nearby terminal can perform data transmission by direct communication in a short distance without forwarding through a base station. Due to the advantages of short distance and direct connection, the D2D technology can improve the utilization efficiency of wireless resources and expand the network coverage, so that a great deal of research is carried out in the construction of 5G, and the D2D technology can be applied to more scenes in the future. When the user is under the condition of no cellular network coverage or coverage blind area, the alarm operation cannot be carried out, the support cannot be obtained in the first time, and the personal safety of the user is influenced.
In summary, there is a need for a solution to the above technical problem, in which a master D2D terminal sends a probe request to a slave D2D terminal nearby in the surrounding area, and after selecting a path, a distress message is sent by a nearby networkable D2D terminal, so as to overcome the above problem.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a self-rescue method based on a 5G D2D direct connection technology, and aims to solve the problem that the safety of a user is affected because alarm operation cannot be performed when no cellular network is covered or the coverage blind area exists in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a self-rescue method based on a 5G D2D direct technology is characterized by comprising the following steps:
s1, the master D2D terminal located in the cellular network blind area initiates a detection request containing emergency rescue information to the nearby slave D2D terminal;
s2, detecting the networking capability of the nearby slave D2D terminal after receiving the probe request, if the networking capability is detected, switching to the step S3, and if the networking capability is detected, switching to the step S4;
s3, extracting the emergency rescue information of the probe request from the D2D terminal, sending response information to the main D2D terminal and turning to S6;
s4, the slave D2D terminal continuously initiates a probe request containing the emergency rescue information of the master D2D terminal to other slave D2D terminals near the slave D2D terminal;
s5, detecting the networking capability of other nearby slave D2D terminals after receiving the probe request, if the network exists, extracting the emergency rescue information of the probe request, sending response information to the slave D2D terminal at the upper stage, and switching to S6, and if the network does not exist, switching to S4;
and S6, after receiving the response information, the master D2D terminal selects a path, and sends the emergency rescue information to the alarm center through the slave D2D terminal at the lowest level on the path.
Preferably, before the step S1, the method further includes the step of manually inputting emergency information by the master D2D terminal, wherein the emergency information includes a current address description, an environment description, an identity description and a contact description.
Preferably, in step S1, the master D2D terminal simultaneously initiates probe requests containing emergency rescue information to a plurality of slave D2D terminals nearby.
Preferably, the response information includes the communication hop count of the slave D2D terminal, and the master D2D terminal selects the path with the least hop count.
Preferably, the master D2D terminal and the slave D2D terminal are interoperable.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a self-rescue method based on a 5G D2D straight-through technology, which comprises the following steps: s1, the master D2D terminal located in the cellular network blind area initiates a detection request containing emergency rescue information to the nearby slave D2D terminal; s2, detecting the networking capability of the nearby slave D2D terminal after receiving the probe request, if the networking capability is detected, switching to the step S3, and if the networking capability is detected, switching to the step S4; s3, extracting the emergency rescue information of the probe request from the D2D terminal, sending response information to the main D2D terminal and turning to S6; s4, the slave D2D terminal continuously initiates a probe request containing the emergency rescue information of the master D2D terminal to other slave D2D terminals near the slave D2D terminal; s5, detecting the networking capability of other nearby slave D2D terminals after receiving the probe request, if the network exists, extracting the emergency rescue information of the probe request, sending response information to the slave D2D terminal at the upper stage, and switching to S6, and if the network does not exist, switching to S4; and S6, after receiving the response information, the master D2D terminal selects a path, and sends the emergency rescue information to the alarm center through the slave D2D terminal at the lowest level on the path. The main D2D terminal sends a detection request to the nearby auxiliary D2D terminals, and the help-seeking information is sent out through the nearby networked D2D terminal after a path is selected, so that the personal safety of a user is guaranteed.
Drawings
FIG. 1 is a flow chart of a preferred embodiment of the present invention;
fig. 2 is an effect diagram 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 the attached figures 1-2, the self-rescue method based on the 5G D2D direct technology is characterized by comprising the following steps of:
s1, the master D2D terminal located in the cellular network blind area initiates a detection request containing emergency rescue information to the nearby slave D2D terminal;
s2, detecting the networking capability of the nearby slave D2D terminal after receiving the probe request, if the networking capability is detected, switching to the step S3, and if the networking capability is detected, switching to the step S4;
s3, extracting the emergency rescue information of the probe request from the D2D terminal, sending response information to the main D2D terminal and turning to S6;
s4, the slave D2D terminal continuously initiates a probe request containing the emergency rescue information of the master D2D terminal to other slave D2D terminals near the slave D2D terminal;
s5, detecting the networking capability of other nearby slave D2D terminals after receiving the probe request, if the network exists, extracting the emergency rescue information of the probe request, sending response information to the slave D2D terminal at the upper stage, and switching to S6, and if the network does not exist, switching to S4;
and S6, after receiving the response information, the master D2D terminal selects a path, and sends the emergency rescue information to the alarm center through the slave D2D terminal at the lowest level on the path.
Specifically, the master D2D terminal is located in an area without network coverage, the master D2D terminal retrieves a nearby slave D2D terminal and sends a probe request to the slave D2D terminal, the probe request includes emergency rescue information, the nearby slave D2D terminal detects its own networking capability after receiving the probe request of the master D2D terminal, if it detects that there is a network, the emergency rescue information of the probe request is extracted from the D2D terminal and sent to the master D2D terminal, if it does not detect that the network slave D2D terminal continues to send the probe request to other slave D2D terminals nearby the slave D2D terminal, other slave D2D terminals receive the probe request and then detect its own networking capability, if it detects that there is a network, the emergency rescue information of the probe request is extracted and sent to the master D2D terminal, if it detects that there is no network, the next stage of probe request is carried out again in step S4, and finally, the master D2D receives the response information and then selects a path according to the response information, and then the emergency rescue information is sent to the alarm center according to the lowest level of the D2D terminal on the path, so that the self-rescue function is realized.
In some embodiments, step S1 is preceded by manually inputting emergency information by the master D2D terminal, the emergency information including a current address description, an environment description, an identity description, and a contact description. Specifically, the master D2D terminal manually inputs the current situation of the master D2D terminal under the network-free condition, and sends the current situation to the nearby slave D2D terminal in a detection request mode, so that the final alarm information is richer, and the rescue probability is increased.
In some embodiments, in step S1, the master D2D terminal simultaneously initiates probe requests containing emergency rescue information to multiple slave D2D terminals nearby, i.e., the master D2D terminal probes the surrounding slave D2D terminals at times as a single line, but as multiple paths.
In some embodiments, the response information includes the communication hop count of the slave D2D terminal, and the master D2D terminal selects the path with the least hop count, that is, when the slave D2D terminal detects that there is a network, the slave D2D terminal determines and records the communication hop count with the master D2D terminal, and feeds back the hop count response to the master D2D terminal, so that the master D2D terminal can select the required path by the hop count.
In some embodiments, the master D2D terminal and the slave D2D terminal may be used in an interworking manner, that is, the slave D2D terminal may also actively initiate a probe request, and may serve as the master D2D terminal to implement sending of the self-rescue signal, and of course, the master D2D terminal serves as the slave D2D terminal when the self-rescue signal is not actively sent.
In summary, the working principle of the invention is as follows:
the invention provides a self-rescue method based on a 5G D2D straight-through technology, which comprises the following steps: s1, the master D2D terminal located in the cellular network blind area initiates a detection request containing emergency rescue information to the nearby slave D2D terminal; s2, detecting the networking capability of the nearby slave D2D terminal after receiving the probe request, if the networking capability is detected, switching to the step S3, and if the networking capability is detected, switching to the step S4; s3, extracting the emergency rescue information of the probe request from the D2D terminal, sending response information to the main D2D terminal and turning to S6; s4, the slave D2D terminal continuously initiates a probe request containing the emergency rescue information of the master D2D terminal to other slave D2D terminals near the slave D2D terminal; s5, detecting the networking capability of other nearby slave D2D terminals after receiving the probe request, if the network exists, extracting the emergency rescue information of the probe request, sending response information to the slave D2D terminal at the upper stage, and switching to S6, and if the network does not exist, switching to S4; and S6, after receiving the response information, the master D2D terminal selects a path, and sends the emergency rescue information to the alarm center through the slave D2D terminal at the lowest level on the path. The main D2D terminal sends a detection request to the nearby auxiliary D2D terminals, and the help-seeking information is sent out through the nearby networked D2D terminal after a path is selected, so that the personal safety of a user is guaranteed.
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 (5)
1. A self-rescue method based on a 5G D2D direct technology is characterized by comprising the following steps:
s1, the master D2D terminal located in the cellular network blind area initiates a detection request containing emergency rescue information to the nearby slave D2D terminal;
s2, detecting the networking capability of the nearby slave D2D terminal after receiving the probe request, if the networking capability is detected, switching to the step S3, and if the networking capability is detected, switching to the step S4;
s3, extracting the emergency rescue information of the probe request from the D2D terminal, sending response information to the main D2D terminal and turning to S6;
s4, the slave D2D terminal continuously initiates a probe request containing the emergency rescue information of the master D2D terminal to other slave D2D terminals near the slave D2D terminal;
s5, detecting the networking capability of other nearby slave D2D terminals after receiving the probe request, if the network exists, extracting the emergency rescue information of the probe request, sending response information to the slave D2D terminal at the upper stage, and switching to S6, and if the network does not exist, switching to S4;
and S6, after receiving the response information, the master D2D terminal selects a path, and sends the emergency rescue information to the alarm center through the slave D2D terminal at the lowest level on the path.
2. The self-rescue method based on 5G D2D direct technology of claim 1, further comprising a master D2D terminal manually inputting emergency rescue information before the step S1, wherein the emergency rescue information comprises a current address description, an environment description, an identity description and a contact description.
3. The self-rescue method based on the 5G D2D direct technology as claimed in claim 1, wherein in step S1, the master D2D terminal simultaneously initiates probe requests containing emergency rescue information to a plurality of slave D2D terminals nearby.
4. The self-rescue method based on 5G D2D direct technology as claimed in claim 3, wherein the response message includes the communication hop count of the slave D2D terminal, and the master D2D terminal selects the path with the least hop count.
5. The self-rescue method based on 5G D2D direct technology as claimed in claim 1, wherein the master D2D terminal and the slave D2D terminal are interoperable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011030746.9A CN112261637A (en) | 2020-09-27 | 2020-09-27 | Self-rescue method based on 5G D2D straight-through technology |
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| CN202011030746.9A CN112261637A (en) | 2020-09-27 | 2020-09-27 | Self-rescue method based on 5G D2D straight-through technology |
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Citations (5)
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| US20180097690A1 (en) * | 2015-12-04 | 2018-04-05 | T-Mobile Usa, Inc. | Peer-to-peer distribution of radio protocol data for software defined radio (sdr) updates |
| CN108419219A (en) * | 2018-04-03 | 2018-08-17 | 中国矿业大学 | The emergent disaster assistance communication system communicated using D2D |
| CN108540961A (en) * | 2018-04-28 | 2018-09-14 | 北京邮电大学 | A kind of emergency communication system and method based on V2X |
| CN109547950A (en) * | 2019-01-14 | 2019-03-29 | 深圳市普天宜通技术股份有限公司 | A kind of multisystem scheduling processing method and device |
| US20200275251A1 (en) * | 2019-02-27 | 2020-08-27 | At&T Intellectual Property I, L.P. | Providing multimedia wireless emergency alerts |
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2020
- 2020-09-27 CN CN202011030746.9A patent/CN112261637A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180097690A1 (en) * | 2015-12-04 | 2018-04-05 | T-Mobile Usa, Inc. | Peer-to-peer distribution of radio protocol data for software defined radio (sdr) updates |
| CN108419219A (en) * | 2018-04-03 | 2018-08-17 | 中国矿业大学 | The emergent disaster assistance communication system communicated using D2D |
| CN108540961A (en) * | 2018-04-28 | 2018-09-14 | 北京邮电大学 | A kind of emergency communication system and method based on V2X |
| CN109547950A (en) * | 2019-01-14 | 2019-03-29 | 深圳市普天宜通技术股份有限公司 | A kind of multisystem scheduling processing method and device |
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Application publication date: 20210122 |