CN111885672A - Wireless communication system and method thereof - Google Patents
Wireless communication system and method thereof Download PDFInfo
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- CN111885672A CN111885672A CN202010711710.0A CN202010711710A CN111885672A CN 111885672 A CN111885672 A CN 111885672A CN 202010711710 A CN202010711710 A CN 202010711710A CN 111885672 A CN111885672 A CN 111885672A
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- 238000004891 communication Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims description 25
- 238000001514 detection method Methods 0.000 claims abstract description 11
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/248—Connectivity information update
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/12—Access point controller devices
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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
A wireless communication system comprises a plurality of terminals, a plurality of base stations and a base station controller, wherein the terminals are connected with the base stations, the base stations are connected with the base station controller, each base station comprises a second data transceiver module and a routing table module connected with the second data transceiver module, and the second data transceiver module can send data to the corresponding terminal recorded in the routing table module. According to the invention, the routing table module is arranged in the base station, so that the base station can respond to the corresponding terminal in time according to the routing table information recorded by the routing table module, and the response time is saved; the message information is periodically sent to the base station controller through the base station, and the message information is processed by the base station controller so as to obtain an updated routing table and then is transmitted to a routing table module of the base station so as to ensure that the communication quality of the base station corresponding to the terminal is the best; and when the terminal uploads the data, the channel detection module can carry out channel detection in advance, thereby preventing the phenomenon of data collision from being sent and ensuring the communication quality.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a wireless communication system and a method thereof.
Background
With the development of communication technology, narrow-band wireless communication is also widely used, and currently, the conventional narrow-band wireless communication technology mainly includes a LoRa WAN, which is widely used, but has some disadvantages, such as: 1. after receiving the terminal information, the base station of the LoRa WAN can not answer the terminal immediately, and the base station needs to wait for the answer of the base station controller to answer the terminal, so that a long receiving window needs to be reserved at the terminal, and the power consumption of the terminal is increased; 2. the LoRa WAN does not perform routing selection, data collision is easily caused when data are downlink, and the reliability of wireless communication is reduced; 3. the LoRa WAN terminal does not perform channel detection, so that as the number of terminals increases, the probability of collision of data packets of multiple terminals on the channel increases greatly.
Therefore, there is a need to provide a new technical solution to overcome the above-mentioned drawbacks.
Disclosure of Invention
The present invention is directed to a wireless communication system and method thereof that effectively solve the above-mentioned problems.
In order to achieve the purpose of the invention, the following technical scheme is adopted:
a wireless communication system comprises a plurality of terminals, a plurality of base stations and a base station controller, wherein the terminals are connected with the base stations, the base stations are connected with the base station controller, each base station comprises a second data transceiver module and a routing table module connected with the second data transceiver module, and the second data transceiver module can only send response data to the corresponding terminal recorded in the routing table module.
Preferably, the terminal includes a first data transceiver module, and the second data transceiver module is connected to the first data transceiver module.
Preferably, the terminal further comprises a channel detection module connected to the first data transceiver module.
Preferably, the base station controller includes a third data transceiver module, and the third data transceiver module is connected to the second data transceiver module.
Preferably, the base station controller further comprises a data processing module connected to the third data transceiver module.
A wireless communication method comprises a plurality of terminals and a plurality of base stations, wherein the terminals comprise first data transceiver modules, the base stations comprise second data transceiver modules connected with the first data transceiver modules and routing table modules connected with the second data transceiver modules,
a first data transceiver module of the terminal sends data to the base station;
the second data transceiver module of the base station receives the data, and according to the routing table stored in the routing table module, the base station corresponding to the terminal in the routing table sends response data to the terminal;
and a first data receiving module of the terminal receives response data sent by the base station.
Preferably, before the first data transceiver module of the terminal sends the data to the base station, the method further includes:
confirming that a channel of the terminal is not occupied.
Preferably, the wireless communication method further includes a base station controller connected to the base station, where the base station controller includes a third data transceiver module connected to the second data transceiver module and a data processing module connected to the third data transceiver module.
Preferably, the wireless communication method further synchronizes in time the following steps:
a second data transceiver module of the base station periodically transmits a message containing the mac address, the message serial number and the RSSI of the terminal to a base station controller;
a third data transceiver module of the base station controller receives the message, transmits message data to a data processing module, and sends the message data to the base station through the third data transceiver module after the message data is processed by the data processing module;
and the second data transceiver module of the base station receives and stores the processed data in the routing table module.
Preferably, the processed data is an updated routing table.
Compared with the prior art, the invention has the following beneficial effects: the wireless communication system can enable the base station to respond to the corresponding terminal in time according to the routing table information recorded by the routing table module by arranging the routing table module in the base station, thereby saving response time, reducing the time for the terminal to keep a window, reducing the energy consumption of the terminal, and being energy-saving and environment-friendly; the message information is periodically sent to the base station controller through the base station, and the message information is processed by the base station controller so as to obtain an updated routing table and then is transmitted to a routing table module of the base station so as to ensure that the communication quality of the base station corresponding to the terminal is the best; and when the terminal uploads the data, the channel detection module can carry out channel detection in advance, and send the data when the channel is not occupied, thereby preventing the phenomenon of data collision from sending and ensuring the communication quality.
Drawings
FIG. 1 is a block diagram of a wireless communication system according to the present invention;
fig. 2 is a schematic structural diagram of a terminal of the wireless communication system of fig. 1 according to the present invention;
fig. 3 is a schematic diagram of a base station of the wireless communication system of fig. 1 according to the present invention;
fig. 4 is a schematic diagram of a base station controller of the wireless communication system of fig. 1;
FIG. 5 is a flow chart of an embodiment of a method of wireless communication in accordance with the present invention;
fig. 6 is a flowchart of another embodiment of a wireless communication method according to the present invention.
Detailed Description
The wireless communication system of the present invention will be described more fully with reference to the accompanying drawings.
As shown in fig. 1, the wireless communication system of the present invention includes a plurality of terminals, a plurality of base stations, and a base station controller.
As shown in fig. 1, one base station may correspond to and be connected to one or more terminals, and the base station controller is connected to all the base stations.
As shown in fig. 2, the terminal includes a first data transceiver module and a channel detection module connected to the first data transceiver module, the first data transceiver module may transmit data to the outside or receive data from the outside in a wired or wireless direction, the channel detection module may detect whether a channel is occupied when the terminal transmits a data packet to the outside through the first data transceiver module, when the channel is occupied, the first data transceiver module transmits the data after a certain time, and when the channel is not occupied, the first data transceiver module may directly transmit the data.
As shown in fig. 3, the base station includes a second data transceiver module and a routing table module connected to the second data transceiver module, the second data transceiver module can receive data sent by a first data transceiver module and can also send data to the first data transceiver module, and the first data transceiver module and the second data transceiver module are connected in a wired or wireless manner, preferably, in a wireless manner. The routing table module is a storage module, routing table information, namely corresponding path information of the base station and the terminal, is stored in the storage module, and the corresponding relationship is that each terminal corresponds to and is connected with the base station with the best communication quality, so that the fastest data transmission speed can be ensured, no delay exists, the base station can directly respond to the terminal corresponding to the routing table stored in the routing table module, and does not need to wait for the response after being processed by the base station controller, the time of reserving a window by the terminal is saved, and the energy consumption of the terminal is reduced. And when the base station transmits data to the terminal, the base station can only transmit data to the terminal corresponding to the base station in the routing table, but can not transmit data to the terminals which are not corresponding to the other routing tables.
As shown in fig. 4, the base station controller includes a third data transceiver module and a data processing module connected to the third data transceiver module, where the third data transceiver module is connected to the second data transceiver module in a wireless or wired manner, and the third data transceiver module can transmit data to the second data transceiver module and also can receive data transmitted by the second data transceiver module. The data processing module can transmit the processed data to the third data transceiver module and send the processed data out through the third data transceiver module, and the third data transceiver module can also transmit the received data to the data processing module for processing. The base station sends a message containing the mac address, the message serial number and the RSSI (received signal strength indication) of the terminal to the base station controller through the second data transceiver module, the third data transceiver module of the base station controller receives the message and then transmits the message to the data processing module, the data processing module processes the message, wherein the message with the same mac address and the same message serial number is regarded as a repeated message, the data processing module of the base station controller compares the RSSI from the repeated message to calculate the optimal route of each terminal, namely the base station with the best communication quality corresponding to each terminal, so that each terminal establishes connection with one base station with the best signal quality to establish the route table information of the terminal, then the updated route table information is sent to the base station through the third data transceiver module by the data processing module, and the second data transceiver module of the base station receives the data and stores the data in the route table module, the base station can periodically send a message to the base station controller so that the base station controller can update the routing table information in time, and the routing table in the routing table module in the base station can be kept in a latest data state, so that the base station can respond to the corresponding terminal in time according to the routing table information without waiting for the response of the base station controller, the communication efficiency is improved, the time is saved, and the energy consumption of the terminal is reduced.
As shown in fig. 5, the wireless communication method includes a plurality of terminals, a plurality of base stations connected to the terminals, and a base station controller connected to the base stations, where the terminals include a first data transceiver module and a channel detection module connected to the first data transceiver module, the base stations include a second data transceiver module and a routing table module connected to the second data transceiver module, and the base station controller includes a third data transceiver module and a data processing module connected to the third data transceiver module, and the specific steps are as follows:
the method comprises the following steps: a first data transceiver module of the terminal sends data to the base station;
step two: the second data transceiver module of the base station receives the data, and according to the routing table stored in the routing table module, the base station corresponding to the terminal in the routing table sends response data to the terminal;
step three: and a first data receiving module of the terminal receives response data sent by the base station.
In the above embodiment, specifically, before the step one, the method further includes:
confirming that a channel of the terminal is not occupied.
In this embodiment, whether a channel of the terminal is occupied is detected by a channel detection module of the terminal, data is sent after a certain time when the occupied channel is detected, and data is directly sent when the unoccupied channel is detected, so that a phenomenon of data packet collision is prevented, and the stability of communication is ensured.
As shown in fig. 6, in the above steps, the wireless communication method further performs the following steps in time synchronization:
the method comprises the following steps: the second data transceiver module of the base station periodically sends a message containing the mac address, the message serial number and the RSSI (received signal strength indicator) of the terminal to the base station controller;
step two: a third data transceiver module of the base station controller receives the message, transmits message data to a data processing module, and sends the message data to the base station through the third data transceiver module after the message data is processed by the data processing module;
step three: and the second data transceiver module of the base station receives and stores the processed data in the routing table module.
Wherein, the processed data is updated routing table information; the messages processed into the same mac address and message sequence number by the data processing module are regarded as repeated messages, and the data processing module of the base station controller compares the RSSI from the repeated messages so as to calculate the optimal route of each terminal, namely the base station with the best communication quality corresponding to each terminal, so that each terminal establishes connection with one base station with the best signal quality, and the route table information of the terminal is established.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A wireless communication system, comprising a plurality of terminals, a plurality of base stations and a base station controller, wherein the terminals are connected to the base stations, and the base stations are connected to the base station controller, characterized in that: the base station comprises a second data transceiver module and a routing table module connected with the second data transceiver module, and the second data transceiver module can only send response data to the corresponding terminal recorded in the routing table module.
2. The wireless communication system of claim 1, wherein: the terminal comprises a first data transceiver module, and the second data transceiver module is connected with the first data transceiver module.
3. The wireless communication system of claim 2, wherein: the terminal also comprises a channel detection module connected with the first data transceiver module.
4. The wireless communication system of claim 3, wherein: the base station controller comprises a third data transceiver module, and the third data transceiver module is connected with the second data transceiver module.
5. The wireless communication system of claim 4, wherein: the base station controller also comprises a data processing module connected with the third data transceiver module.
6. A wireless communication method comprises a plurality of terminals and a plurality of base stations, wherein each terminal comprises a first data transceiver module, each base station comprises a second data transceiver module connected with the first data transceiver module and a routing table module connected with the second data transceiver module, and the wireless communication method is characterized in that:
a first data transceiver module of the terminal sends data to the base station;
the second data transceiver module of the base station receives the data and sends response data to the terminal by the base station corresponding to the terminal in the routing table according to the routing table stored in the routing table module;
and a first data receiving module of the terminal receives response data sent by the base station.
7. The wireless communication method of claim 6, wherein: before the first data transceiver module of the terminal sends data to the base station, the method further includes:
confirming that a channel of the terminal is not occupied.
8. The wireless communication method of claim 7, wherein: the wireless communication method also comprises a base station controller connected with the base station, wherein the base station controller comprises a third data transceiver module connected with the second data transceiver module and a data processing module connected with the third data transceiver module.
9. The wireless communication method of claim 8, wherein: the wireless communication method also synchronizes in time the following steps:
a second data transceiver module of the base station periodically transmits a message containing the mac address, the message serial number and the RSSI of the terminal to a base station controller;
a third data transceiver module of the base station controller receives the message, transmits message data to a data processing module, and sends the message data to the base station through the third data transceiver module after the message data is processed by the data processing module;
and the second data transceiver module of the base station receives and stores the processed data in the routing table module.
10. The wireless communication method of claim 9, wherein: the processed data is an updated routing table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010711710.0A CN111885672A (en) | 2020-07-22 | 2020-07-22 | Wireless communication system and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010711710.0A CN111885672A (en) | 2020-07-22 | 2020-07-22 | Wireless communication system and method thereof |
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| CN111885672A true CN111885672A (en) | 2020-11-03 |
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| CN202010711710.0A Withdrawn CN111885672A (en) | 2020-07-22 | 2020-07-22 | Wireless communication system and method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100370840C (en) * | 1998-09-24 | 2008-02-20 | 日本电气株式会社 | Mobile communication system for transmitting no-connection group and method thereof |
| CN101262271A (en) * | 2007-03-06 | 2008-09-10 | 财团法人资讯工业策进会 | Method, system, apparatus, and computer-readable recording medium for establishing a routing path |
-
2020
- 2020-07-22 CN CN202010711710.0A patent/CN111885672A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100370840C (en) * | 1998-09-24 | 2008-02-20 | 日本电气株式会社 | Mobile communication system for transmitting no-connection group and method thereof |
| CN101262271A (en) * | 2007-03-06 | 2008-09-10 | 财团法人资讯工业策进会 | Method, system, apparatus, and computer-readable recording medium for establishing a routing path |
Non-Patent Citations (2)
| Title |
|---|
| 万露: "LoRa上行多跳通信研究及在输电线路中的应用", 《中国优秀博硕士学位论文全文数据库（硕士）工程科技II辑》 * |
| 史东旭等: "基于物联网和大数据驱动的农业病虫害监测技术", 《南京农业大学学报》 * |
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