Summary

Recommendation ITU-T G.9959 specifies the physical (PHY), medium access control (MAC), segmentation and reassembly (SAR), and logical link control (LLC) layers for short range narrow‑band digital radiocommunication transceivers (TRXs). This Recommendation contains the non-radio (frequency) related aspects of the radiocommunication TRX. Sub 1 GHz TRXs claiming compliance with this specification shall also comply with Annex A of this Recommendation.