ADAPTIVE CHANNEL BANDWIDTH SWITCHING METHOD AND SYSTEM

摘要

An embodiment of the present invention provides an adaptive channel bandwidth switching method, including: buffering service data to be sent; sending a first microwave frame to a receiving end device; performing a receiving configuration after processing the first microwave frame; continuously sending second microwave frames to the receiving end device; switching a configuration related to the symbol rate after receiving the second microwave frames; performing symbol synchronization; performing frame synchronization; performing equalizer convergence; sending a third microwave frame to the receiving end device after the receiving end device performs the equalizer convergence; performing a receiving configuration after processing the third microwave frame; stopping buffering the service data to be sent; and sending a fourth microwave frame to the receiving end device, so as to switch the channel bandwidth. The embodiment of the present invention provides an effective method for improving link availability.

主权项

1. An adaptive channel bandwidth switching method, comprising:
buffering, by a sending end device, service data to be sent; sending, by the sending end device, a first microwave frame to a receiving end device according to a symbol rate corresponding to an initial channel bandwidth, wherein a frame header of the first microwave frame indicates that a next frame is a transition frame, and that a symbol rate of the next frame is a symbol rate corresponding to a target channel bandwidth, and a payload portion of the first microwave frame carries a random symbol; performing, by the receiving end device, a receiving configuration for the transition frame with a symbol rate of the symbol rate corresponding to the target channel bandwidth after processing the first microwave frame; continuously sending, by the sending end device, second microwave frames to the receiving end device according to the symbol rate corresponding to the target channel bandwidth, wherein a frame header of the second microwave frame indicates that a next frame is a transition frame, and that a symbol rate of the next frame is the symbol rate corresponding to the target channel bandwidth, and a payload portion of the second microwave frame carries a random symbol; switching, by the receiving end device, a configuration related to the symbol rate after receiving the second microwave frames; performing, by the receiving end device, symbol synchronization; performing, by the receiving end device, frame synchronization; performing, by the receiving end device, equalizer convergence; sending, by the sending end device, a third microwave frame to the receiving end device according to the symbol rate corresponding to the target channel bandwidth after the receiving end device performs the equalizer convergence, wherein a frame header of the third microwave frame indicates that a next frame is a normal frame, and that a symbol rate of the next frame is the symbol rate corresponding to the target channel bandwidth, and a payload portion of the third microwave frame carries a random symbol; performing, by the receiving end device, a receiving configuration for the normal frame with a symbol rate of the symbol rate corresponding to the target channel bandwidth after processing the third microwave frame; stopping buffering, by the sending end device, the service data to be sent; and sending, by the sending end device, a fourth microwave frame to the receiving end device according to the symbol rate corresponding to the target channel bandwidth, wherein a frame header of the fourth microwave frame indicates that a next frame is a normal frame, and that a symbol rate of the next frame is the symbol rate corresponding to the target channel bandwidth, and a payload portion of the fourth microwave frame carries a service symbol, so as to switch the channel bandwidth.