Patent ID: 9641283
Date: 2017-05-02
CPC Classifications: H04L

Claim:
1. An adaptive modulation coding apparatus, comprising: a processor in communication with one or more types of memory, the processor configured to: execute a first obtaining module configured to obtain an estimated signal-to-interference-plus-noise ratio (SINR) and a packet error rate (PER) of a communication link of a user terminal; execute a first setting module configured to set a first adjustment amount of the SINR of the communication link according to the PER of the communication link; execute a calculating module configured to calculate an effective SINR of the communication link according to the estimated SINR of the communication link and the first adjustment amount of the SINR of the communication link, wherein the effective SINR reflects a flexibly adjusted estimated SINR to enable a determining module to select an appropriate modulating coding scheme in a wireless communication environment; execute a detecting module configured to: detect a feedback status of the communication link of the user terminal; send a data request message to the user terminal; set the second adjustment amount of the SINR of the uplink and downlink as 0, in response to receiving a data request packet from the user terminal before a predetermined time; set the second adjustment amount of the SINR of the uplink and downlink as a negative value, in response to not receiving the data request packet sent by the user terminal before the predetermined time; and execute a second setting module configured to set a second adjustment amount of SINR of an uplink and downlink according to the feedback status of the communication link; wherein the calculating module is further configured to: calculate the effective SINR of the communication link according to the estimated SINR of the communication link, the first adjustment amount of the SINR of the communication link and the second adjustment amount of the SINR of the uplink and downlink; and execute the determining module configured to determine the appropriate modulation coding scheme of the communication link according to the effective SINR of the communication link.