| 摘要 |
A network communication device includes a protection value optimizing module, a rate calculating module, a rate determining module, and a connection module. The protection value optimizing module is configured for optimizing an impulse noise protection (INP) value. The rate calculating module is configured for calculating a first downlink rate based on an initial INP value and calculating a second downlink rate based on an optimized INP value. The rate determining module is configured for determining if the first downlink rate and the second downlink rate are greater than a maximum downlink rate provided by the central office device. The connection module is configured for establishing a communication connection between a terminal device and a central office device according to the second downlink rate and the optimized INP value upon the condition that the second downlink rate is not greater than the maximum downlink rate.
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