In light of the increasing demand for the sXGP system and the termination of public PHS services in the same frequency band at the end of March 2023, frequency allocation and related regulations have been reviewed. In response to these regulation changes, this standard was revisd.

The rules relating to parameter values have been deleted as they are no longer suitable for use due to the changes in preconditions from version 1.2 (different frequency operation due to the addition of frequencies, etc.).

Following the amendment of the Ministerial Ordinance on the sXGP method, which was promulgated and enforced on December 10, 2020, provisions related to the addition of frequencies in the use of multiple waves in the sXGP method were added.

At the same time, we also added how time-division timing synchronization should be used to avoid radio wave interference between sXGP systems installed adjacently by different users.

With the spread and expansion of sXGP type private networks, there are more cases where MS move to different BS and return to the BS they belong to. In order to perform the connections stably and smoothly in such cases, a provision concerning the identification code of the master unit for network identification is added, in addition to the identification code of the slave unit. Also added is a provision on the connection refusal reason value for MS outside its home network.

At the same time, add the method to the guidelines for assigning the identification code of the parent device and the method for managing it.