CC1310: CC115L communicates with CC1310 but the 32bit SYNC word doesn't mesh

Hi Team，

        My customer had used CC1310 on their products and had PP. Now they would like to use cost down sub-1G CC115L (as a Remove control) make a communication with CC1310 .  

         But in their product, the CC1310 was set the 32 bit SYNC word to "0x91381101" .

         I know our CC11xx all can support 32 bit SYNC word but the sync word is 16bit repeated twice, such as "0x91269126". It can't communicate with CC1310 in their product, which has PP, and can't change anything.

        Do you have any suggestions?

Thank you!