1. IEEE 802.16e Air interface for fixed and mobile broadband wireless access systems 2005
2. 3GPP TS 36.300 Evolved universal terrestrial radio access (E-UTRA) and evolved universal terrestrial radio access network (E-UTRAN)
3. 3GPP TR 25.814 Physical layer aspects for evolved universal terrestrial radio access (UTRA)
4. 3GPP, TSG RAN WG1#42 R1-050507 Soft frequency reuse scheme for UTRAN LTE 2005
5. 3GPP, TSG RAN WG1#42 R1-050841 Further analysis of soft frequency reuse scheme 2005