US 10,541,768 B2 · MAC and RRC multiplexing for inter-RAT dual connectivity UE

Abstract

Apparatuses, systems, and methods for a wireless device to perform simultaneous uplink activity for multiple RATs in the same carrier using multiplexing at a layer above the physical layer. The wireless device may establish wireless links with first and second base stations, respectively, according to first and second radio access technologies (RATs), respectively. The first base station may provide a first cell operating in a first system bandwidth and the second base station may provide a second cell operating in a second system bandwidth. The wireless device may determine whether inter-RAT uplink coexistence in the same frequency band is enabled. If so, the wireless device may perform uplink activity for both the first RAT and the second RAT in the first system bandwidth by multiplexing uplink data for the first RAT and uplink data for the second RAT at a layer above the physical layer.

Claims20

Dependent claims

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, wherein the first RAT is a cellular RAT;
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, wherein the second RAT is a second cellular RAT;
determine whether inter-RAT uplink coexistence in the same frequency band is enabled;
and
perform uplink activity for both the first RAT and the second RAT in the first system bandwidth by multiplexing uplink data for the first RAT and uplink data for the second RAT at a protocol layer of the first RAT that is higher than the physical layer if inter-RAT uplink coexistence in the same frequency band is enabled.

2 more elements

A method, comprising:

by a wireless device:
establishing 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, wherein the first RAT is a cellular RAT;
establishing 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, wherein the second RAT is a second cellular RAT;
determining whether inter-RAT uplink coexistence in the same frequency band is enabled;
and
performing uplink activity for both the first RAT and the second RAT in the first system bandwidth by multiplexing uplink data for the first RAT and uplink data for the second RAT at a packet data convergence protocol (PDCP) layer of the first RAT if inter-RAT uplink coexistence in the same frequency band is enabled.

3 more elements

A wireless device, comprising:

an antenna;
a radio coupled to the antenna;
and
a processing element coupled to the radio;
wherein the wireless device is configured 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 by multiplexing uplink data for the first RAT and uplink data for the second RAT at a media access control (MAC) layer of the first RAT if uplink activity is scheduled according to both the first RAT and the second RAT.

7 more elements

Dependencies are inferred from the claim text.

MAC and RRC multiplexing for inter-RAT dual connectivity UE

Life of this patent

MAC and RRC multiplexing for inter-RAT dual connectivity UE

Life of this patent

Abstract

Claims20