Patent ID: 11917473
Assignee: NXP USA, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A modem for an Evolved Universal Terrestrial Access (E-UTRA) non-standalone network, the modem comprising a E-UTRA modem configured to receive radio frames from the E-UTRA network, the modem comprising an interface configured to receive at least first timing information from a 5G-NR modem for a 5G-NR network and a determination module, the determination module configured to:
determine SFTD information based on the first timing information received via said interface and second timing information determined by the E-UTRA modem; and
forward said SFTD information to a network controller via a second base station of the E-UTRA network;
wherein said first timing information comprises one or more first times, to, indicative of the time of receipt, by the 5G-NR modem, of a respective one or more first radio frames, nk, from a first base station of the 5G NR network, each radio frame having a first system frame number (SFN), the one or more first times to measured relative to a network time established by the 5G NR network; and
wherein said second timing information comprises one or more second times indicative of the time of receipt, tLTE, by said E-UTRA modem, of one or more second radio frames from the second base station of the E-UTRA network, each radio frame having a second system frame number (SFN), the one or more second times measured relative to a network time established by the E-UTRA network and derived by the modem using, at least in part, information encoded in the radio frames received by the E-UTRA modem.