US 12,771,497 B2 · Handling of medium access control (MAC) entity during secondary cell group (SCG) deactivation/reactivation

Abstract

Embodiments include methods for a user equipment (UE) configured to communicate with a wireless network via a plurality of cell groups (e.g., MCG and SCG). Such methods include, upon deactivating one of the cell groups (e.g., SCG), suspending a medium access control (MAC) entity associated with the deactivated cell group and performing one or more first operations on the MAC entity upon the suspension of the MAC entity. Such methods also include, while the MAC entity is suspended, performing one or more second operations related to reporting of uplink (UL) data available for transmission via the deactivated cell group. Such methods also include, upon reactivating the deactivated cell group, performing one or more third operations on the MAC entity and resuming the MAC entity based on the one or more third operations. Other embodiments include UEs configured to perform such methods.

Claims20

Dependent claims

A method for a user equipment (UE) configured to communicate with a wireless network via a plurality of cell groups including a master cell group (MCG) and a secondary cell group (SCG), the method comprising:

upon deactivation of the SCG, performing one or more first operations on a medium access control (MAC) entity associated with the SCG, wherein the one or more first operations on the MAC entity include cancelling one or more ongoing MAC entity procedures;
while the SCG is deactivated, performing one or more second operations related to reporting of uplink (UL) data available for transmission via the SCG;
and
upon reactivation of the SCG, performing one or more third operations on the MAC entity, wherein the one or more third operations comprise resetting respective prioritization parameters for each logical channel of the MAC entity to a predetermined initial value of zero.

1 more element

A user equipment (UE) configured to communicate with a wireless network via a plurality of cell groups, including a master cell group (MCG) and a secondary cell group (SCG), the UE comprising:

communication interface circuitry configured to communicate with the wireless network via the plurality of cell groups;
and
processing circuitry operatively coupled to the communication interface circuitry, wherein the processing circuitry and the communication interface circuitry are configured to:
upon deactivation of the SCG, perform one or more first operations on a medium access control (MAC) entity associated with the SCG, wherein the one or more first operations on the MAC entity include cancelling one or more ongoing MAC entity procedures;
while the SCG is deactivated, perform one or more second operations related to reporting of uplink (UL) data available for transmission via the SCG;
and
upon reactivation of the SCG, perform one or more third operations on the MAC entity, wherein the one or more third operations comprise resetting respective prioritization parameters for each logical channel of the MAC entity to a predetermined initial value of zero.

4 more elements

Dependencies are inferred from the claim text.

Handling of medium access control (MAC) entity during secondary cell group (SCG) deactivation/reactivation

Life of this patent

Handling of medium access control (MAC) entity during secondary cell group (SCG) deactivation/reactivation

Life of this patent

Abstract

Claims20