US Patent No. 10,368,384

ASYMMETRIC CAPABILITY COORDINATION IN DUAL CONNECTIVITY


Patent No. 10,368,384
Issue Date July 30, 2019
Title Asymmetric Capability Coordination In Dual Connectivity
Inventorship Amaanat Ali, Espoo (FI)
Tero Henttonen, Espoo (FI)
Assignee Nokia Technologies Oy, Espoo (FI)

Claim of US Patent No. 10,368,384

1. A method comprising:sending from a master radio access node to a secondary radio access node an addition request message comprising configuration information enabling the secondary radio access node to operate with the master node for dual connectivity with a user equipment, wherein the addition request message indicates a first version number associated with the configuration information;
receiving at the master radio access node from the secondary radio access node, in reply to the addition request message, a request acknowledgement message acknowledging participation by the secondary radio access node in the dual connectivity, wherein the request acknowledgement message indicates a second version number associated with a configuration of the secondary radio access node;
determining, using the first version number and the second version number, dual connectivity coordination capabilities between the master radio access node and the secondary radio access node and a configuration of the user equipment for the dual connectivity, wherein the determining comprises that the secondary radio access node does not comprehend a newer version radio access technology for the dual connectivity; and thereafter
the master radio access node participating in the dual connectivity when communicating wirelessly with the user equipment,
wherein:
the dual connectivity comprises, based on the determining, the master radio access node communicating wirelessly with the user equipment using the newer version radio access technology and the secondary radio access node communicating wirelessly with the user equipment using an older version radio access technology, and
the addition request message and the request acknowledgement message are in accordance with radio resource control signaling of the older version radio access technology, wherein based at least on the determining using the first version number and the second version number the master radio access node is comprehending both the newer version radio access technology and the older version radio access technology for the communicating.