There are list methods which can be used for RoHC framework as follows:
1. Least Significant Byte Encoding. There is some limitation of LSB encoding that's why it's variant i.e. WLSB is used.
2. Scaled RTP Timestamp encoding.
3. Timer-based RTP Timestamp Compression.
4. IP-ID offset encoding.
5. Self-Describing Variable Length Code (SDVL) Encoding
Every data bearer established between UE and eNodeB, is associated with a RoHC profile Id.
profile Id corresponds to combination of network layer , transport layer and upper layer protocol.