Methods and systems for reviving scheduling request (sr) resources

A method performed by a user equipment (UE) in a wireless communication system, the method comprising:

• receiving, from a network, a first radio resource control (RRC) configuration including a first frequency;
• sending one or more scheduling request (SR) messages to the network by applying the first RRC configuration;
• detecting a failure in the sending of the one or more SR messages to the network;
• sending a message to the network, the message indicating the failure in the sending of the one or more SR messages;
• and
• in response to sending the message, receiving, from the network, a second RRC configuration including a second frequency.

A user equipment (UE) in a wireless communication system, the UE comprising:

• a transceiver;
• a memory;
• and
• a controller coupled to the memory and the transceiver,
• wherein the controller is configured to:
• receive, from a first base station (BS), a first radio resource control (RRC) configuration including a first frequency,
• request the first BS on the first frequency to allocate an uplink (UL) grant for an UL transmission by applying the first RRC configuration,
• detect at least one UL grant failure in which the UE lost scheduling request (SR) resources and did not receive the UL grant from the first BS on the first frequency,
• release the first frequency by reporting the at least one UL grant failure to a second BS,
• in response to the reporting of the at least one UL grant failure, receive, from the second BS, a second RRC configuration including a second frequency, and
• add the second frequency for reviving the lost SR resources.