US Patent No. 10,660,114

FDM TRANSMISSION FOR INTER-RAT DUAL CONNECTIVITY UE


Patent No. 10,660,114
Issue Date May 19, 2020
Title Fdm Transmission For Inter-rat Dual Connectivity Ue
Inventorship Yang Li, Plano, TX (US)
Wei Zeng, San Diego, CA (US)
Zhu Ji, San Jose, CA (US)
Beibei Wang, Cupertino, CA (US)
Jia Tang, San Jose, CA (US)
Yuchul Kim, Santa Clara, CA (US)
Haijing Hu, Beijing (CN)
Dawei Zhang, Saratoga, CA (US)
Xiangying Yang, Cupertino, CA (US)
Sami M. Almalfouh, San Jose, CA (US)
Johnson O. Sebeni, Fremont, CA (US)
Wei Zhang, Santa Clara, CA (US)
Tianyan Pu, Cupertino, CA (US)
Assignee Apple Inc., Cupertino, CA (US)

Claim of US Patent No. 10,660,114

1. An apparatus, comprising:a processing element configured to cause a wireless device to:
establish a first wireless link with a first cell according to a first radio access technology (RAT), wherein the first cell operates in a first system bandwidth;
establish a second wireless link with a second cell according to a second radio access technology (RAT), wherein the second cell operates in a second system bandwidth;
determine whether the wireless device has uplink activity scheduled according to both the first RAT and the second RAT; and
perform uplink activity for both the first RAT and the second RAT in the first system bandwidth involving frequency division multiplexing if uplink activity is scheduled according to both the first RAT and the second RAT, wherein to perform uplink activity for both the first RAT and the second RAT in the first system bandwidth involving frequency division multiplexing, the processing element is further configured to cause the wireless device to:
perform uplink activity for the first RAT in a first portion of the first system bandwidth; and
perform uplink activity for the second RAT in a second portion of the first system bandwidth, wherein the wireless device does not perform uplink activity on a guard band portion of the first system bandwidth between the first portion of the first system bandwidth and the second portion of the first system bandwidth.