This working group is in charge of the discussion and examination of all XGP technology related cases. Its major task is to standardize necessary technologies to facilitate the development of XGP service. In addition, its activities include the solution of XGP-related technical themes, standardization of technology related with new services, technical exchange with other standardization organizations, and technical instruction to XGP and potential XGP operator. åąˇ€Sub working groups are established under the working group to deal with individual cases. XGP members can apply to join the working group and its sub working groups in a condition to be able to participate in real standard drafting operation. The contents discussed within this working group are not for public access.