It is expected that IP based 3GPP services will be provided through various access technologies, including existing broadband radio access standards like IEEE 802.16e/ETSI BRAN, and 3GPP2 including HRPD and 1xRTT. In order to achieve this, inter-technology mobility between E-UTRAN and 3GPP2/Mobile WiMAX is considered in the study item "Improved Network Controlled Mobility between E-UTRAN and 3GPP2/Mobile WiMAX Radio Technologies". The purpose of this TR is to help TSG RAN to capture a stage 2 level solution for each of the studied mobility scenarios, which can be used as a basis to initiate the stage 3 work when moving to the work item phase. This activity involves the Radio Access Network work area of the 3GPP studies for mobility and has impacts on both the Mobile Equipment and Access Network of the 3GPP systems. Architecture impact involving non-RAN nodes is under the responsibility of SA2.