Impact on System Performance:

The impact of Flex Abis on system performance is as follows:

>>Flex Abis uses dynamic allocation of Abis interface transmission resources. When the BSC allocates related resources, it notifies the BTS through signaling messages. Therefore, the signaling load on the  Abis interface increases.

>>The reliability of dynamic allocation is low relative to fixed allocation.

Impact on Other Features:

The impact of Flex Abis on other features is as follows:

>>Flex Abis serves as the basis of the BTS local switching feature. After the BTS local switching, the occupied Abis interface transmission resources are released. This can save the transmission resources on the Abis interface.

>>The ring topology of BTS I with Flex Abis enabled has the following impact on other features:

         – Flex Abis must be enabled in all the BTSs, and only the forward and reverse single E1 link is supported.

         – The Abis bypass function is not supported.

         – The 16 kbit/s LAPD link is not supported.

>>The Flex Abis and Abis bypass functions can be enabled simultaneously.

thanks for the doc

Good Document

Clearly described.. like it.

useful document, thanks