Beacon sharing method based on HPLC and BMP wireless communication dual-mode fusion

A wireless communication and beacon technology, applied in wireless communication, sustainable communication technology, distribution line transmission system, etc., can solve problems such as increasing MAC layer resource overhead, failure to send data packets, and inability to ensure, saving data storage Space, improve QoS guarantee, and facilitate the effect of path query

Pending Publication Date: 2022-08-02
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when a node fails to send data in a CSMA time slot in one mode, it cannot ensure that it is also in a CSMA time slot in another mode, resulting in data packet transmission failure
Therefore, HPLC and BMP adopt an independent beacon mechanism, which is not conducive to the unified planning of dual-mode resources, increases the resource overhead of the MAC layer, and cannot reflect the advantages of dual-mode channel resources, thereby affecting the performance of the entire dual-mode fusion system. Networking efficiency and work performance

Method used

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  • Beacon sharing method based on HPLC and BMP wireless communication dual-mode fusion
  • Beacon sharing method based on HPLC and BMP wireless communication dual-mode fusion
  • Beacon sharing method based on HPLC and BMP wireless communication dual-mode fusion

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Experimental program
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Effect test

specific Embodiment 1

[0112] Specific embodiment 1: CCO sends central beacon

[0113] The specific embodiment 1 will describe the flow of the CCO constructing the dual-mode beacon frame and sending it in the corresponding central beacon time slot under the dual-mode network.

[0114] 1) Construction of the central beacon frame

[0115] CCO according to Figure 7 The HPLC and BMP dual-mode fusion network topology information is shown. The central beacon frame is periodically sent in the HPLC and BMP modes. The beacon frame includes the beacon time slot and the TDMA time slot in the beacon period allocated by the CCO. , CSMA timeslots, binding CSMA timeslots and other timeslot planning information. Nodes in a dual-mode communication network must follow the time slots allocated by the CCO for channel access.

[0116] The CCO needs to send the beacon frame at the beginning of the beacon period, so the beacon frame needs to be generated in advance. When the start time of the beacon period arrives, t...

specific Embodiment 2

[0218] Specific embodiment 2: PCO receives central beacon

[0219] Figure 11 Process flow for the PCO to receive a beacon frame in one mode.

[0220] In one mode, after the node with the role of PCO receives the beacon frame in this mode,

[0221] ① Determine whether the current cycle is completed synchronously

[0222] When the station with the role of PCO receives the beacon frame in the current mode, it first determines whether the synchronization has been completed in the current cycle. If the synchronization is completed, the beacon frame is discarded; if it is not synchronized, the synchronization is started.

[0223] ②Analyze the beacon frame, access the time slot allocation entry, and align the local site to the CCO time.

[0224] It mainly includes the length of the beacon period, the start time of the beacon period, the length of the beacon time slot, the length of the TDMA time slot, the length of the CSMA time slot, and the length of the bound CSMA time slot. ...

specific Embodiment 3

[0234] Specific embodiment 3: PCO sends proxy beacon

[0235] The PCO sends proxy beacons at proxy beacon slots as follows Figure 12 As shown, node a plays the role of PCO in both modes. Node b is PCO in BMP mode and STA in HPLC mode.

[0236] Figure 13 The structure diagram of the non-central beacon time slot divided for CCO, CCO is a, b two nodes arrange proxy beacon time slot, node a sends proxy beacon in both modes, node b sends proxy beacon in BMP mode Beacons, send discovery beacons in HPLC mode.

[0237] Figure 14 Process for sending proxy beacons for PCOs.

[0238] ① After the PCO receives the central beacon or proxy beacon, it first performs time synchronization. The time of the current station is aligned with the CCO, and the end time of the beacon slot, TDMA slot (if any), CSMA slot, and bound CSMA slot (if any) is calculated.

[0239] ②Analyze the time slot allocation entry, find the time slot of the node, and first complete the construction of the proxy ...

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Abstract

The invention relates to a beacon sharing method based on HPLC (High Performance Liquid Chromatography) and BMP (Broadband Management Protocol) wireless communication dual-mode fusion, which belongs to the field of power grid communication, and comprises the following steps: sharing a beacon period in dual modes, including the same beacon period length, beacon period starting time and beacon period ending time; carrying out dual-mode unified TEI distribution; the dual-mode shared beacon time slot comprises a central beacon time slot, a proxy beacon time slot and a discovery beacon time slot which are the same; the dual modes share the CSMA time slot, the CSMA time slot lengths in the two modes are included, and the starting time of the CSMA time slot is the same as the ending time of the CSMA time slot; and dual-mode shared beacon frame structures: performing deep fusion on the dual-mode beacon frame structures, constructing a beacon frame in another mode according to the beacon frame in the current mode after the node receives the beacon frame in any network mode, and sending the dual-mode beacon frame in a beacon time slot arranged by the CCO for the node. The working efficiency of the dual-mode system is improved.

Description

technical field [0001] The invention belongs to the field of power grid communication, and relates to a beacon sharing method based on the dual-mode fusion of HPLC and BMP wireless communication. Background technique [0002] Broadband power line carrier communication (HPLC) refers to a communication technology that uses the power line itself and the transmission network or distribution network formed by it as the transmission medium to realize high-speed data transmission. Broadband power line communication refers to power line carrier communication with a bandwidth limited between 2 and 30 MHz and a communication rate usually above 1 Mbps. It can directly use the power line without rewiring, the networking is simple and fast, the cost is low, and the application range is wide. [0003] The Broadband Micropower (BMP) wireless communication system is a high-speed wireless network that realizes the aggregation, transmission and interaction of low-voltage power users' electri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W28/16H04B3/54
CPCH04W24/02H04W28/16H04B3/54Y04S40/126
Inventor 冯伟王琼黄俊伟陈卓张大勇
Owner CHONGQING UNIV OF POSTS & TELECOMM
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