Systems and methods for UE to avoid issues in dynamic spectrum sharing

A User Equipment (UE) operating in Evolved Universal Terrestrial Radio Access Network (E-UTRAN) New Radio-Dual Connectivity (EN-DC), of adding an New Radio (NR) Secondary Node (SN) in EN-DC, the UE comprising:

• a communication interface configured to receive configuration data associated with an NR cell in response to a measurement report sent by the UE;
• and
• a controller configured to:
• determine whether the configuration data comprises a pre-determined parameter indicative of a frequency-shift criteria for dynamic spectrum sharing for an uplink;
• and
• perform, one of:
• an addition of an NR SN corresponding to the NR cell based in response to determining that the pre-determined parameter indicative of the frequency-shift criteria for dynamic spectrum sharing for the uplink is absent from the configuration data;
• or
• a transmission of a failure notification message to a Master Node (MN), in response to determining that the pre-determined parameter indicative of the frequency-shift criteria for dynamic spectrum sharing for the uplink is present in the configuration data.

A method of a User Equipment (UE) for cell selection in Standalone (SA) New Radio (NR), the method comprising:

• receiving a system information message corresponding to at least a first NR cell;
• determining whether the system information message corresponding to at least the first NR cell includes a pre-determined parameter indicative of a frequency-shift criteria for dynamic spectrum sharing for an uplink;
• and
• performing one of:
• camping at the first NR cell based on an S criteria, in response to determining that the pre-determined parameter indicating the frequency-shift criteria for dynamic spectrum sharing for the uplink is absent from the system information message corresponding to at least the first NR cell;
• or
• camping at one of a second NR cell or a cell of another RAT, in response to determining that the pre-determined parameter indicating the frequency-shift criteria for dynamic spectrum sharing for the uplink is present in the system information message corresponding to at least the first NR cell.