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Power control method and node device

A power control and node technology, applied in power management, wireless communication, electrical components, etc., can solve the problems of frequency domain resource allocation flexibility limitation, network throughput drop, interference, etc., to facilitate flexible resource scheduling and improve performance. Effect

Inactive Publication Date: 2017-09-12
HYTERA COMM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the inventors found that for frequency division multiplexing (FDM) multiple reception in the same time slot, if a fixed power transmission scheme is applied, the flexibility of frequency domain resource allocation is limited, and the network throughput rate decreases
[0006] The inventor also found that, for frequency division multiplexing multiple transmission and one reception in the same time slot, if a fixed power transmission scheme is applied, the performance of weak signals decreases during A / D quantization
Weak signals will be subject to inter-subcarrier interference caused by frequency offset errors of strong signals, resulting in severe degradation of weak signal performance, such as figure 1 shown

Method used

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Embodiment Construction

[0063] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus their repeated descriptions will be omitted.

[0064] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the invention. However, those skilled in the art will appreciate that the technical solutions of the present invention may be practiced without one or more of the ...

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Abstract

The application relates to a power control method and a node device for multi-node concurrency in a wireless MESH network. When a transmitting node transmits a signal to a plurality of receiving nodes by using different sub-carriers at one time slot, the transmitting node distributes each transmit power for the plurality of receiving nodes, and the distributed transmit power is related to the corresponding receiving node; and when a plurality of transmitting nodes transmit the signal to the same receiving node by using the different sub-carriers at one time slot, a transmit power recommended value of each transmitting node is given according to the path loss power value between each transmitting node and the receiving node. According to the scheme disclosed by the application, the flexibility of frequency domain resource allocation can be improved, and the network throughput rate can be increased.

Description

technical field [0001] The present application relates to the field of wireless MESH, in particular, a power control method and node device for concurrent multi-nodes in a wireless MESH network. Background technique [0002] Wireless MESH networks (wireless mesh networks) are also known as "multi-hop" networks. The core guiding idea of ​​the wireless MESH network is to allow each node in the network to transmit and receive signals. Any wireless device node can act as an AP and a router at the same time. Each node in the network can transmit and receive signals. Each node Both can communicate directly with one or more peer nodes. The development of wireless MESH network is in the ascendant, and the industry is proposing and developing various schemes. In this application, MESH network can be understood in a broad sense. [0003] In a traditional MESH network, only one node can transmit data at each moment. In the case of unicast, the receiving node is also unique. This p...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/20H04W52/24H04W52/36
CPCH04W52/20H04W52/242H04W52/367
Inventor 鲁志兵张庆利余庆祥沈谦胡军
Owner HYTERA COMM CORP