CN113098671B - Dual-mode communication method for fusing wireless beacon time slot and HPLC beacon time slot - Google Patents
Dual-mode communication method for fusing wireless beacon time slot and HPLC beacon time slot Download PDFInfo
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- CN113098671B CN113098671B CN202110341930.3A CN202110341930A CN113098671B CN 113098671 B CN113098671 B CN 113098671B CN 202110341930 A CN202110341930 A CN 202110341930A CN 113098671 B CN113098671 B CN 113098671B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0078—Timing of allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0008—Synchronisation information channels, e.g. clock distribution lines
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Abstract
The utility model provides a dual-mode communication method for fusing a frequency hopping wireless beacon time slot and an HPLC beacon time slot, relates to the technical field of network communication, and solves the technical problem that micropower wireless communication and HPLC communication cannot be fused. The method comprises the following steps: dividing a channel into a common channel and a working channel; dividing the beacon into a synchronization beacon and a discovery beacon; dividing a communication time slot into a beacon time slot and a competition time slot; and allocating time limits to the wireless beacon time slot, the wireless competition time slot, the power carrier beacon time slot and the power carrier competition time slot one by one according to the time sequence to form a plurality of frequency hopping time slot graphs. The utility model realizes the integration of micropower wireless communication and HPLC communication by adding the synchronous beacon and the discovery beacon, not only improves the communication efficiency, but also ensures the communication reliability. On the other hand, the occupied time of the synchronous beacon is reduced, and the coverage of the network is ensured.
Description
Technical Field
The utility model relates to the technical field of network communication, in particular to a dual-mode communication method for fusing a wireless beacon time slot and an HPLC beacon time slot.
Background
In the High speed Power Line Communication (HPLC) standard, the type, frame structure, and operating time slot arrangement of a beacon are strictly defined. In developing a dual mode Communication technology by combining a micro Power wireless Communication technology and a low voltage Power Line Communication (PLC) Communication technology, it is not feasible if a technical protocol of a beacon of the HPLC is completely used. This is because the two technologies have the following technical differences, which affect the dual-mode protocol and operation mechanism.
First, the difference between the micro-power wireless communication rate and the HPLC communication rate is large, so that the time used by the two is very different when the same beacon frame is transmitted. For example, the maximum rate of wireless communication is 200Kbps, the minimum rate is 20Kbps, the maximum rate of HPLC is 1Mbps, the minimum rate is 100Kbps, the difference between the two rates is 5 times, if the beacon frames with the same length are transmitted, the length of the time slot is required to be 5 times different, and the matching is not good during the operation.
Secondly, the information contained in the HPLC beacon frame is relatively large, when the number of network nodes reaches more than 300, the frame length is generally more than 520 bytes, and if the number of nodes exceeds 1000, a plurality of data frames with the length of 520 bytes need to be continuously transmitted. When the 520-Byte long data packet is transmitted at the rate of 20Kbps or 200Kbps, the communication time is 208ms or 20.8 ms. When the data is transmitted in the air for a long time, communication failure is easily caused by receiving some burst interference, and the communication reliability is reduced.
Thirdly, two objects are actually faced by the information of the HPLC beacon frame, one is a node which is already accessed to the network and is used for network synchronization; one is a node that is not networked for network discovery. Due to the limitation of the physical characteristics of the power line, HPLC can only combine two beacons to transmit uniformly in the same communication channel. In wireless communication conditions, the air interface may allocate multiple channels such that different beacons are placed in different channels to transmit transmissions.
Fourth, in the HPLC protocol, some signaling information that changes, such as a Medium Access Control (MAC) address of a central node, is repeatedly sent in each superframe, and if the dual-mode wireless channel and the power carrier channel both need to send the signaling information according to the requirement, the overall communication efficiency is reduced.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a dual-mode communication method for merging a frequency hopping wireless beacon time slot and an HPLC beacon time slot, aiming at the technical defect that the two technologies cannot be merged due to the difference.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a dual-mode communication method for fusing a frequency hopping wireless beacon time slot and an HPLC beacon time slot comprises the following steps:
s1, dividing the channel into a common channel and a working channel S2, and dividing the beacon into a synchronous beacon and a discovery beacon
S3, dividing communication time slot into beacon time slot and competition time slot
And S4, allocating time limits to the wireless beacon time slot, the wireless competition time slot, the power carrier beacon time slot and the power carrier competition time slot one by one according to time sequence to form a plurality of frequency hopping time slot graphs.
Further, after step S4 is completed, the method further includes the steps of: s5, networking; and S6, clock synchronization.
Further, the networking steps are as follows:
s51, the central node sequentially scans the wireless common channel, the power carrier working channel and the wireless working channel; the central node can acquire network configuration information of the wireless public channel, a power carrier signal of the HPLC network and occupation and interference information of the wireless working channel by scanning;
s52, the peripheral node scans the wireless working channel, stays in the wireless public channel and receives the discovery beacon; the discovery beacon comprises a discovery beacon transmitted by an HPLC network node; the peripheral node can acquire the occupation information of the wireless working channel through scanning;
s53, the central node selects 1 working channel and 1 frequency hopping time slot graph in the working channel and the frequency hopping pattern respectively according to the scanning result;
s54, the central node respectively sends a first networking beacon when a wireless beacon time slot and a power carrier time slot of the central node arrive;
s55, the peripheral nodes receive the first networking beacon, respectively synchronize according to the synchronization information of the first networking beacon, and sequentially send network access applications to the central node in the competition time slot of the central node;
s56, the central node receives the network access application of the first node and judges the legality of the network access application; if the first node is legal, a first confirmation response is sent to the first node; otherwise, sequentially judging the legality of other nodes;
s57, after the first node accesses the network, respectively forwarding a second networking beacon when a wireless beacon time slot and a power carrier time slot of the first node arrive; the second networking beacon is sent to the first node by the central node;
s58, the second node receives the second networking beacon, and sends a network access application to the first node, and the first node forwards the network access application to the central node;
s59, the central node receives the network access application of the second node and judges the legality of the network access application; if the node is legal, a second confirmation response is sent to the second node; otherwise, sequentially judging the legality of other nodes;
s510, the third node sequentially executes the steps S57-S59 until the network is accessed; and the third node is a node which is not accessed to the network or a newly added node.
Further, the clock synchronization step is:
s61, the superframe of the central node points to the initial time slot of the working channel, and the synchronous beacon is sent to the peripheral node; and S62, the peripheral nodes receive the synchronous beacons and complete clock synchronization in the respective beacon time slots.
Further, after the synchronization clock is completed, the wireless common channel is further configured to transmit the discovery beacon to the power carrier channel in the beacon slot.
Preferably, the number of the common channels is 1 or 2; the number of the working channels is multiple.
Preferably, the central node is a microcellular access center or a distributed access unit; the central node can manage node access, route maintenance and distribution and data conflict avoidance of the network.
Further, the peripheral nodes are network nodes except the central node, and include nodes in a micro-power wireless network and nodes in the HPLC network.
Further, the first networking beacon and the second networking beacon are transmitted on the public channel; the network access application, the first acknowledgement and the second acknowledgement are sent on the working channel; the common channel comprises a wireless common channel; the working channels comprise the wireless working channel and the power carrier working channel.
Further, the first networking beacon comprises a wireless frequency hopping map of the central node, a network address, synchronization information and time slot allocation information; the second networking beacon comprises a wireless frequency hopping map, a network address, synchronization information and time slot allocation information of the first node; the first acknowledgement includes a frequency hopping pattern, a beacon slot, and a network address assigned to the first node by the central node; the second acknowledgement includes a frequency hopping pattern, a beacon slot, and a network address assigned to the second node by the central node.
The implementation of one of the technical schemes of the utility model has the following advantages or beneficial effects:
the utility model realizes the integration of micropower wireless communication and HPLC communication by adding the synchronous beacon and the discovery beacon, the synchronous beacon is only used for maintaining the synchronization of the network clock, the synchronous beacon contains less information, the length of the synchronous beacon frame does not exceed 30 bytes, and the synchronous beacon can be sent in a time slot of 20ms even if the rate of 20Kbps is used. Not only improves the communication efficiency, but also ensures the communication reliability. On the other hand, not every node needs to transmit the synchronization beacon, and only the parent nodes with the child nodes transmit the synchronization beacon, so that the occupied time of the synchronization beacon is reduced. The wireless beacon of each beacon time slot is sent by the adjacent time slot of the power carrier beacon, and the beacon comprises the related information of wireless and power carrier, so that the coverage of the network is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a flow chart of a dual mode communication method of an embodiment of the present invention;
FIG. 2 is a diagram of a frequency hopping slot map architecture of an embodiment of the present invention;
FIG. 3 is a diagram of an HPLC beacon frame structure according to an embodiment of the present invention;
fig. 4 is a networking flow diagram of an embodiment of the utility model.
Detailed Description
In order that the objects, aspects and advantages of the present invention will become more apparent, various exemplary embodiments will be described below with reference to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary embodiments in which the utility model may be practiced, and in which like numerals in different drawings represent the same or similar elements, unless otherwise specified. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. It is to be understood that they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims, and that other embodiments may be used, or structural and functional modifications may be made to the embodiments set forth herein, without departing from the scope and spirit of the present disclosure. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a defined feature of "first", "second", may explicitly or implicitly include one or more of that feature; the term "plurality" means two or more unless specifically limited otherwise.
The following embodiment is merely a specific example and does not indicate such an implementation of the present invention.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
As shown in fig. 1, a dual-mode communication method for merging a frequency hopping wireless beacon timeslot and an HPLC beacon timeslot includes the following steps:
s1, dividing the channel into a public channel and a working channel;
s2, dividing the beacon into a synchronous beacon and a discovery beacon;
s3, dividing the communication time slot into a beacon time slot and a competition time slot;
and S4, allocating time limits to the wireless beacon time slot, the wireless competition time slot, the power carrier beacon time slot and the power carrier competition time slot one by one according to time sequence to form a plurality of frequency hopping time slot graphs.
Specifically, the common channel can perform networking and maintenance on nodes in a network, the working channel can transmit commands and data among the network nodes, and the channels comprise a micropower wireless network node channel and an HPLC network node channel; the synchronous beacons can synchronize nodes in the network, the discovery beacons can discover nodes which do not enter the network and join the network, and the beacons comprise beacons transmitted between the micropower wireless network and the HPLC network nodes; the beacon time slot is used for sending a beacon, the competition time slot is used for data communication, further, the beacon time slot comprises a wireless beacon time slot and a power carrier beacon time slot, the competition time slot comprises a wireless competition time slot and a power carrier competition time limit, the wireless beacon time slot and the power carrier beacon time slot are respectively the network access time slots of the wireless network node and the power line power carrier network node, and the wireless competition time slot and the power carrier competition time slot are respectively the communication time slots of the wireless network node and the power line power carrier network node.
Further, after the completion of the hopping slot map, i.e., after step S4, the method further includes the steps of: s5, networking and S6, and clock synchronization.
As shown in fig. 2, a layout of a fractional-slot hopping slot map structure is listed. The wireless beacons and the power carrier beacons both comprise time slots (not shown in the figure) of a plurality of nodes, for a wireless time slot, every two wireless beacon time slots are spaced by a fixed number of wireless competition time limits, for example, 3, the specific number of intervals is determined by the number of the wireless nodes and the power carrier nodes in the network, and the wireless beacons and the power carrier beacons are sequentially and periodically arranged in time sequence according to the rule; the power carrier time limit and the wireless time slot are arranged according to the same rule, the beacon arrangement of all wireless and power carrier nodes is completed, so that a complete frequency hopping time slot diagram is formed, the wireless beacon time limit and the power carrier beacon time slot can correspond to the same time slot and can also be arranged in a staggered mode, and the reason is determined by the difference between micro-power communication and HPLC communication. Each node is allocated to each node in the network by the central node selecting an appropriate frequency hopping pattern in the frequency hopping time slot pattern.
As shown in fig. 3, there are three types of beacons in an HPLC network: central beacons, proxy beacons and discovery beacons, and beacon frames must be transmitted in beacon slots. Beacon slots are allocated by a Central Coordinator (CCO), and the allocation needs to indicate the corresponding slots that can be used by a specific Station (STA). The Proxy beacon is sent by a Proxy station (PCO), and the Proxy beacon contains all time slot arrangement contents of the central beacon and carries basic attributes of the Proxy STA; discovery beacons are transmitted by STA stations and must be transmitted within the beacon slot assigned to the STA by the CCO. The discovery beacon is mainly used for discovering possible hidden STAs around, and the beacon contains contents such as contention slot scheduling for hidden STAs to join the network. The STA not accessing the network, after receiving the discovery beacon, may initiate a request to join the network according to the time slot arrangement in the discovery beacon.
The three roles of CCO, PCO and STA are necessary to keep the unified management algorithm for the time slot in the beacon. And the CCO allocates the time slots in the beacon period, fills the time slot allocation entries in the beacon according to a uniform algorithm, and notifies the PCO and the STA of the time slot allocation entries through beacon transmission. The PCO and STA need to follow a uniform algorithm for the resolution of the slot allocation entry in the beacon as well. The length of the whole beacon period is determined by the "beacon period length" field and has a unit of 1 ms.
The allocation of the time slots is calculated as relative time, i.e. the allocation is from time 0 to the entire time range of the beacon period length. The CCO specifies its starting network reference time, i.e., the "beacon period starting network reference time" field, at the starting time of each beacon period (i.e., time 0).
As shown in fig. 4, the networking steps are as follows:
s51, the central node sequentially scans a wireless common channel, a power carrier working channel and a wireless working channel;
s52, the peripheral node scans the wireless working channel, stays in the wireless common channel and receives the discovery beacon;
s53, the central node respectively selects 1 working channel and frequency hopping pattern from the working channels and the frequency hopping patterns according to the scanning result;
s54, the central node sends a first networking beacon when a wireless beacon time slot and a power carrier time slot of the central node arrive respectively;
s55, the peripheral nodes receive the first networking beacons, respectively synchronize according to the synchronization information of the first networking beacons, and sequentially send network access applications to the central nodes in the competition time slots of the central nodes;
s56, the central node receives the network access application of the first node and judges the legality of the network access application; if the first node is legal, a first confirmation response is sent to the first node; otherwise, the legality of other nodes is judged in sequence. The legality judgment is to judge whether the network access node is in a white list and whether the link quality of the network access node is qualified, and the white list is a list of nodes which are not accessed to the network.
S57, after the first node accesses the network, respectively forwarding a second networking beacon when the wireless beacon time slot and the power carrier time slot of the first node arrive; the second networking beacon is sent to the first node by the central node;
s58, the second node receives the second networking beacon and sends a network access application to the first node, and the first node forwards the network access application to the central node;
s59, the central node receives the network access application of the second node and judges the legality of the network access application; if the node is legal, a second confirmation response is sent to the second node; otherwise, the legality of other nodes is judged in sequence. Other nodes, such as a third node;
s510, the other nodes which are not accessed to the network or the newly added nodes execute the steps S57-S59 in sequence until all the nodes are accessed to the network. Other non-networked nodes, such as a third node, a fourth node, …, and a last node. In the process of executing steps S7-S9, the second node forwards the third networking beacon transmitted by the central node; after receiving the request, the third node sends a network access application, and the second node and the first node sequentially forward the network access application of the third node to the central node; after receiving the network access application, the central node judges the validity and sends a second confirmation response to the third node if the validity is legal; otherwise, the network access application validity of the fourth node is judged in sequence. The fourth node, …, the last node, and the newly-accessed node, and so on. The number of nodes may be determined by the core node based on the layout of the actual network nodes.
Further, the central node can acquire network configuration information of the wireless common channel, power carrier signals of the HPLC network and occupation and interference information of the wireless working channel through scanning; the discovery beacon comprises a discovery beacon sent by a micropower wireless network and an HPLC network node; the peripheral node can acquire the occupation information of the wireless working channel through scanning; the first networking beacon comprises a wireless frequency hopping map, a network address, synchronization information and time slot allocation information of the central node, and the second networking beacon comprises the wireless frequency hopping map, the network address, the synchronization information and the time slot allocation information of the first node; the first acknowledgement includes a frequency hopping pattern, a beacon slot, and a network address assigned by the central node to the first node, and the second acknowledgement includes a frequency hopping pattern, a beacon slot, and a network address assigned by the central node to the second node.
Further, the clock synchronization step is:
s61, the superframe of the central node points to the initial time slot of the working channel, and a synchronous beacon is sent to the peripheral node; the working channels comprise a wireless working channel and a power carrier working channel; the synchronization beacon includes a synchronization slot;
s62, the peripheral node receives the synchronous beacon and completes clock synchronization in the respective beacon time slot; the beacon slots include a wireless beacon slot and a power carrier channel beacon slot.
Further, after the synchronous clock is completed, the wireless common channel sends a discovery beacon to the wireless channel and the power carrier channel in the beacon time slot, and further discovers nodes which are not accessed to the network in the HPLC network.
Preferably, the number of common channels is 1 or 2; the number of working channels is multiple. The central node is a micro-cellular access center or a distributed access unit, and the central node can manage node access, route maintenance and distribution and data conflict avoidance of a network.
Further, the peripheral nodes are network nodes except the central node, and include nodes in the micro-power wireless network and nodes in the HPLC network. The first networking beacon and the second networking beacon are sent on a common channel, the network access application, the first confirmation response and the second confirmation response are sent on a working channel, the common channel comprises a wireless common channel, and the working channel comprises a wireless working channel and a power carrier working channel.
In summary, the utility model realizes the integration of micro-power wireless communication and HPLC communication by adding a synchronization beacon and a discovery beacon, the synchronization beacon is only used for maintaining network clock synchronization, the synchronization beacon contains less information, the length of the synchronization beacon frame does not exceed 30 bytes, and the transmission can be completed in a 20ms time slot even if a 20Kbps rate is used. Not only improves the communication efficiency, but also ensures the communication reliability. On the other hand, not every node needs to transmit the synchronization beacon, and only the parent nodes with the child nodes transmit the synchronization beacon, so that the occupied time of the synchronization beacon is reduced. The wireless beacon of each beacon time slot is sent by the adjacent time slot of the power carrier beacon, and the beacon comprises the related information of wireless and power carrier, so that the coverage of the network is ensured.
After reading the description herein, it will be apparent to one skilled in the art that various features described herein can be implemented by a method, a data processing system, or a computer program product. Accordingly, these features may be embodied in less than hardware, in all software, or in a combination of hardware and software. Furthermore, the above-described features may also be embodied in the form of a computer program product stored on one or more computer-readable storage media having computer-readable program code segments or instructions embodied in the storage medium. The readable storage medium is configured to store various types of data to support operations at the device. The readable storage medium may be implemented by any type of volatile or non-volatile storage device, or combination thereof. Such as a static disk, a random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), an optical storage device, a magnetic storage device, a flash memory, a magnetic or optical disk, and/or combinations thereof.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A dual-mode communication method for fusing a frequency hopping wireless beacon time slot and an HPLC beacon time slot is characterized by comprising the following steps:
s1, dividing the channel into a public channel and a working channel;
s2, dividing the beacon into a synchronous beacon and a discovery beacon;
s3, dividing the communication time slot into a beacon time slot and a competition time slot;
and S4, allocating time limits to the wireless beacon time slot, the wireless competition time slot, the power carrier beacon time slot and the power carrier competition time slot one by one according to time sequence to form a plurality of frequency hopping time slot graphs.
2. The dual-mode communication method of claim 1, wherein after step S4 is completed, the method further comprises the steps of:
s5, networking;
and S6, clock synchronization.
3. The dual-mode communication method of claim 2, wherein the networking step is as follows:
s51, the central node sequentially scans a wireless common channel, a power carrier working channel and a wireless working channel;
the central node can acquire network configuration information of the wireless public channel, a power carrier signal of the HPLC network and occupation and interference information of the wireless working channel by scanning;
s52, the peripheral node scans the wireless working channel, stays in the wireless public channel and receives the discovery beacon;
s53, the central node selects 1 working channel and 1 frequency hopping time slot graph in the working channel and the frequency hopping pattern respectively according to the scanning result;
s54, the central node respectively sends a first networking beacon when a wireless beacon time slot and a power carrier time slot of the central node arrive;
s55, the peripheral nodes receive the first networking beacon, respectively synchronize according to the synchronization information of the first networking beacon, and sequentially send network access applications to the central node in the competition time slot of the central node;
s56, the central node receives the network access application of the first node and judges the legality of the network access application; if the first node is legal, a first confirmation response is sent to the first node; otherwise, sequentially judging the legality of other nodes;
s57, after the first node accesses the network, respectively forwarding a second networking beacon when a wireless beacon time slot and a power carrier time slot of the first node arrive; the second networking beacon is sent to the first node by the central node;
s58, the second node receives the second networking beacon, and sends a network access application to the first node, and the first node forwards the network access application to the central node;
s59, the central node receives the network access application of the second node and judges the legality of the network access application; if the node is legal, a second confirmation response is sent to the second node; otherwise, sequentially judging the legality of other nodes;
s510, the third node sequentially executes the steps S57-S59 until the network is accessed; and the third node is a node which is not accessed to the network or a newly added node.
4. The dual-mode communication method of claim 3, wherein the clock synchronization step is:
s61, the superframe of the central node points to the initial time slot of the working channel, and the synchronous beacon is sent to the peripheral node;
and S62, the peripheral nodes receive the synchronous beacons and complete clock synchronization in the respective beacon time slots.
5. The dual-mode communication method of claim 4, further comprising the wireless common channel transmitting the discovery beacon to the power carrier channel at the beacon slot after the clock synchronization is completed.
6. The dual-mode communication method of claim 5, wherein the number of common channels is 1 or 2; the number of the working channels is multiple.
7. The dual-mode communication method of claim 6, wherein the central node is a microcellular access center or a distributed access unit;
the central node can manage node access, route maintenance and distribution and data conflict avoidance of the network.
8. The dual-mode communication method of claim 7, wherein the peripheral nodes are network nodes other than the central node, including nodes in a micro-power wireless network and nodes in the HPLC network.
9. The dual-mode communication method of claim 8, wherein the first networking beacon and the second networking beacon are transmitted on the common channel; the network access application, the first acknowledgement and the second acknowledgement are sent on the working channel;
the common channel comprises a wireless common channel; the working channels comprise the wireless working channel and the power carrier working channel.
10. The dual-mode communication method of claim 9, wherein the first networking beacon comprises a wireless frequency hopping map, a network address, synchronization information, and time slot allocation information of the central node;
the second networking beacon comprises a wireless frequency hopping map, a network address, synchronization information and time slot allocation information of the first node;
the first acknowledgement includes a frequency hopping pattern, a beacon slot, and a network address assigned to the first node by the central node;
the second acknowledgement includes a frequency hopping pattern, a beacon slot, and a network address assigned to the second node by the central node.
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| CN114845325B (en) * | 2022-04-27 | 2024-08-27 | 重庆邮电大学 | Beacon sharing method based on dual-mode fusion of HPLC and BMP wireless communication |
| CN115379536B (en) * | 2022-08-23 | 2024-12-31 | 芯象半导体科技(北京)有限公司 | CCO frequency sweeping method and device based on HPLC dual-mode wireless system |
| CN115379537B (en) * | 2022-08-23 | 2024-12-31 | 芯象半导体科技(北京)有限公司 | STA frequency sweeping method and device based on HPLC dual-mode wireless system |
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