Dual connectivity capability modification
AssigneeGoogle Inc.
InventorsErik Richard Stauffer, Jibing Wang
Life of this patent
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Abstract
This document describes techniques and devices for communication of dual connectivity (DC) capability by user equipment (110) to a base station (120) and a core network (150) using signaling of a modification of the DC capability of the UE (110) at the physical layer (306) or the media access control layer (308) to reduce the latency of communicating the modification of the DC capability as compared to using Radio Resource Control layer (322) signaling. Signaling a modification of DC capability at the physical layer (306) or media access control layer (308) enables the UE (110) to more quickly respond to issues detected by the UE (110), such as thermal management or in-device coexistence interference, that may be mitigated by discontinuing DC communications.
Claims22
A method for communicating a modification of dual connectivity (DC) capability by a user equipment (UE) in a cellular network, the method comprising:
- transmitting, by the UE, an Attach Request message to a first base station of a radio access network (RAN), the Attach Request message including a first indication of a DC capability of the UE;
- in response to the transmitting the first indication, establishing DC communication with the first base station and a second base station of the RAN;
- determining, by the UE, to modify the DC capability of the UE;
- transmitting, at a physical layer or a Media Access Control (MAC) layer, the modified DC capability of the UE as a second indication of the DC capability of the UE, the transmitting the second indication of the DC capability of the UE being effective to cause the RAN to relay the second indication of the DC capability of the UE to a core network;
- and
- based at least in part on the modified DC capability of the UE, discontinuing DC communications using the first base station and the second base station.
A base station configured as a Master Node (MN) for Dual Connectivity (DC) communication, the base station comprising:
- a radio frequency (RF) transceiver;
- a core network interface;
- an inter-base station interface;
- and
- a processor and memory system to implement a base station manager application configured to:
- receive, using the RF transceiver, an Attach Request message from a user equipment (UE) including a first indication of a DC capability of the UE;
- in response to the reception of the first indication of the DC capability of the UE, establish DC communication for the UE, including configuring another base station as a Secondary Node (SN) using the inter-base station interface;
- receive, at a physical layer or a Media Access Control (MAC) layer, a second indication of the DC capability of the UE that indicates a modification of the DC capability of the UE;
- relay the second indication of the DC capability of the UE to a core network using the core network interface;
- and
- based on the reception of the second indication, configure, using the inter-base station interface, the other base station to discontinue DC with the UE.
A method for communicating a user equipment (UE) capability for multi-Radio Access Technology (Multi-RAT) Dual Connectivity (DC) by a base station, the method comprising:
- receiving, by the base station, an Attach Request message from the UE including a first indication of a DC capability of the UE;
- in response to the receiving the first indication, establishing DC communication for the UE, including configuring another base station as a Secondary Node (SN);
- receiving, at a physical layer or a Media Access Control layer, a second indication of the DC capability of the UE that indicates a modification of the DC capability of the UE;
- relaying the second indication of the DC capability of the UE to a core network;
- and
- based on the receiving the second indication, configuring, using an inter-base station interface, the other base station to discontinue DC with the UE.
A method for communicating a modification of dual connectivity (DC) capability by a user equipment (UE) in a cellular network, the method comprising:
- transmitting, by the UE, an Attach Request message to a first base station, the Attach Request message including a first indication of a DC capability of the UE;
- in response to the transmitting the first indication, establishing DC communication with the first base station and a second base station;
- determining, by the UE, to modify the DC capability of the UE based on:
- sensing a temperature by the UE;
- or
- sensing an in-device coexistence issue from one or more radio transceivers in the UE;
- transmitting, at a physical layer or a Media Access Control (MAC) layer, the modified DC capability of the UE as a second indication of the DC capability of the UE;
- and
- based at least in part on the modified DC capability of the UE, discontinuing DC communications using the first base station and the second base station.
A user equipment (UE) configured for communication using dual connectivity (DC) capability in a cellular network, the UE comprising:
- a radio frequency (RF) transceiver;
- and
- a processor and memory system to implement a dual connectivity manager application configured to:
- transmit, using the RF transceiver, an Attach Request message to a first base station of a radio access network (RAN), the Attach Request message including a first indication of a DC capability of the UE;
- in response to the transmission of the first indication, establish DC communication with the first base station and a second base station of the RAN;
- determine to modify the DC capability of the UE;
- transmit, at a physical layer or a Media Access Control (MAC) layer, the modified DC capability of the UE as a second indication of the DC capability of the UE, the transmission of the second indication of the DC capability of the UE being effective to cause the RAN to relay the second indication of the DC capability of the UE to a core network;
- and
- based at least in part on the modified DC capability of the UE, discontinue DC communications using the first base station and the second base station.
A user equipment (UE) configured for communication using dual connectivity (DC) capability in a cellular network, the UE comprising:
- a radio frequency (RF) transceiver;
- and
- a processor and memory system to implement a dual connectivity manager application configured to:
- transmit, using the RF transceiver, an Attach Request message to a first base station, the Attach Request message including a first indication of a DC capability of the UE;
- in response to the transmission of the first indication, establish DC communication with the first base station and a second base station;
- determine to modify the DC capability of the UE based on:
- sensing a temperature by the UE;
- or
- sensing an in-device coexistence issue from one or more radio transceivers in the UE;
- transmit, at a physical layer or a Media Access Control (MAC) layer, the modified DC capability of the UE as a second indication of the DC capability of the UE;
- and
- based at least in part on the modified DC capability of the UE, discontinue DC communications using the first base station and the second base station.
Dependencies are inferred from the claim text.