What are CS‐1, CS‐2 (Coding Schemes)?

CS-1 is the GPRS coding scheme is utilized in situations when impedance levels are high or signal levels are low. It is used for error recognition and amendment. It stops the information from having to be re-sent again and again by applying high levels of recognition and amendment. This level of detection and coding brings about a half code rate.
CS-2 error detection and GPRS coding scheme are for better channels. It viably utilizes a 2/3 encoder and results in a further developed information rate over CS-1.