METHOD AND SYSTEMS FOR EXCHANGING MESSAGES IN WIRELESS COMMUNICATION NETWORK Russian patent published in 2021 - IPC H04W76/10 

FIELD: wireless communication.

SUBSTANCE: invention relates to communication method executed by the first wireless communication node. The method contains several stages. The first message requiring for establishing or modifying the context of data radio bearer (hereinafter – DRB) is transmitted to the second wireless communication node. The second message indicating that DRB context was established or modified in the second wireless communication node is received from the second wireless communication node. The first message contains the first address information of the DRB user plane, which contains tunnel endpoint identifier (hereinafter – TEID) by general packet radio service (GPRS) tunneling protocol (hereinafter – GTP) of uplink channel (hereinafter – UL) S1 or TEID GTP UL NG. The second message contains the second address information of the DRB user plane, which contains TEID GTP UL F1 in the second wireless communication node and TEID GTP of downlink channel (hereinafter – DL) S1 or TEID GTP DL NG in the second wireless communication node.

EFFECT: providing a possibility of data transmission control.

17 cl, 9 dwg