Carrier specific aperiodic gap for capability sharing for MUSIM operation for dual TX/RX device

An apparatus, comprising:

• at least one processor;
• and at least one non-transitory memory including computer program code, where the at least one non-transitory memory and more than one multi universal subscriber identity module of the first user equipment, a connection request from a second user equipment of a second network;
• send, with the first multi universal subscriber identity module of the first user equipment towards a network node of the first network, assistance information, wherein the assistance information indicates a need for capability restrictions and is to the first network based on the connection request;
• wherein the assistance information comprises an indication that the first user equipment needs to leave one carrier of the first network for a multi universal subscriber identity module operation;
• the computer program code are configured, with the at least one processor, to cause a first user equipment of a first network to at least:
• receive, with a first multi universal subscriber identity module of in response to the assistance information, receive from the network node of the first network, a gap configuration for a multi universal subscriber identity module operation;
• and based on the receiving, send the gap configuration towards the second user equipment for use by the second user equipment to establish a radio resource control connection with the second network, wherein the assistance information further comprises a list of capability restrictions of the first user equipment in order of preference, and wherein the list of the capability restrictions of the first user equipment comprises at least one of a list of carriers that can be released or gaps that can be created ordered by preference, and the order of preference is based on at least one of:
• preference of capability update, release of cells, or activation or deactivation of configured resources for the connection request, wherein the gap configuration is carrier specific for dual connectivity and identifies a specific secondary cell of the first network on which an aperiodic gap for capability sharing is to be applied;
• wherein the gap configuration is received in a radio resource control reconfiguration message and includes a timing indication aligned to a primary cell timing with an offset according to the identified secondary cell;
• wherein the at least one non-transitory memory including the computer program code is configured with the at least one processor to cause the first user equipment to:
• based on the receiving, forward the gap configuration to a protocol stack associated with a second subscription of the user equipment for use by the second subscription to initiate random access and establish the radio resource control connection on a specified carrier of the second network, wherein, based on the gap configuration, the user equipment operates with two transmit or receive chains toward the first network and releases or suspends all operation only on the identified secondary cell where the gap was configured.