Content for TS 27.010 Word version: 18.0.0
6 Error Recovery Mode Option p. 43
6.1 Frame Types p. 43
6.1.1 Information transfer, I, command and response p. 43
6.1.2 Receive ready, RR, command and response p. 44
6.1.3 Receive not ready, RNR, command and response p. 44
6.1.4 Reject, REJ, command and response p. 44
6.2 Procedure and State p. 44
6.2.1 Frame state variables and sequence numbers p. 44
6.2.1.1 General p. 44
6.2.1.2 Send state variable V(S) p. 44
6.2.1.3 Send sequence number N(S) p. 44
6.2.1.4 Receive state variable V(R) p. 45
6.2.1.5 Receive sequence number N(R) p. 45
6.2.1.6 Use of the P/F bit to assist in error recovery p. 45
6.2.2 Exchange of information (I) frames p. 45
6.2.2.1 Sending I frames p. 45
6.2.2.2 Receiving I frames p. 45
6.2.2.3 Reception of incorrect frames p. 46
6.2.2.4 Station receiving acknowledgements p. 46
6.2.2.5 Exception conditions and recovery p. 46
6.2.2.5.1 Busy p. 46
6.2.2.5.2 N(S) sequence error p. 46
6.2.2.5.3 Poll/final (P/F) bit (checkpoint) recovery p. 47
6.2.2.5.4 REJ recovery p. 47
6.2.2.5.5 SABM Command p. 47
6.2.2.5.6 DISC Command p. 47
