An electronic device is provided. The electronic device includes a first communication circuit, a second communication circuit, and at least one processor. The first communication circuit is configured to receive, in a first band, a first reflective signal reflected by an object, and obtain, based on the received first reflective signal, a first channel impulse response corresponding to the first reflective signal. The second communication circuit is configured to receive, in a second band, a second reflective signal reflected by the object, obtain, based on the received second reflective signal, a second channel impulse response corresponding to the second reflective signal, and obtain a third channel impulse response based on a first calculation using the second channel impulse response, a first central frequency of the first band and a second central frequency of the second band.

In an embodiment, a UE determines QCL information that indicates an association between a spatial parameter and a current transmission configuration, and conveys the determined QCL information to a BS. In another embodiment, a BS transmits a DCI that triggers transmission of a reference signal that includes QCL information that indicates an association between a spatial parameter and a current transmission configuration, whereby any DCI triggering any reference signal that includes any QCL information is configured to trigger a UE to send an express acknowledgment or an implied acknowledgment to that DCI.

In an embodiment, a UE determines QCL information that indicates an association between a spatial parameter and a current transmission configuration, and conveys the determined QCL information to a BS. In another embodiment, a BS transmits a DCI that triggers transmission of a reference signal that includes QCL information that indicates an association between a spatial parameter and a current transmission configuration, whereby any DCI triggering any reference signal that includes any QCL information is configured to trigger a UE to send an express acknowledgment or an implied acknowledgment to that DCI.

A method is provided in a receiving node for handling status information of data units transmitted from a sending node to the receiving node over a radio link. The receiving node establishes (401) that a number of data units that has been transmitted by the sending node are missing. The receiving node sends (402) a reduced status message to the sending node over the radio link, which message is reduced such that it comprises the negative acknowledgement for a first part of missing data units and omits negative acknowledgements for the rest of the missing data units. The omitted negative acknowledgement for the rest of the missing data units will not erroneously be interpreted as correctly received data units by the sending node.

A method is provided in a receiving node for handling status information of data units transmitted from a sending node to the receiving node over a radio link. The receiving node establishes (401) that a number of data units that has been transmitted by the sending node are missing. The receiving node sends (402) a reduced status message to the sending node over the radio link, which message is reduced such that it comprises the negative acknowledgement for a first part of missing data units and omits negative acknowledgements for the rest of the missing data units. The omitted negative acknowledgement for the rest of the missing data units will not erroneously be interpreted as correctly received data units by the sending node.

A system includes first, second, and third apparatuses. The second apparatus converts a first control-command received from the first apparatus to second control-commands compatible with the third apparatus, requests the third apparatus to perform the second control-commands, and notifies the first apparatus of a normal finish of the first control-command when all the second control-commands have finished normally, so that the first apparatus updates a first status of the third apparatus that is held by the first apparatus. The third processor updates a second status of the third apparatus that is held by the third apparatus, upon finishing each second control-command, generates reverse-commands for restoring a result of having executing the second control-commands to a status prior to executing the second control-commands, and, when all the second control-commands have not been executed, restores the second status to a status prior to having executed the second control-commands by executing the reverse-commands.

A system includes first, second, and third apparatuses. The second apparatus converts a first control-command received from the first apparatus to second control-commands compatible with the third apparatus, requests the third apparatus to perform the second control-commands, and notifies the first apparatus of a normal finish of the first control-command when all the second control-commands have finished normally, so that the first apparatus updates a first status of the third apparatus that is held by the first apparatus. The third processor updates a second status of the third apparatus that is held by the third apparatus, upon finishing each second control-command, generates reverse-commands for restoring a result of having executing the second control-commands to a status prior to executing the second control-commands, and, when all the second control-commands have not been executed, restores the second status to a status prior to having executed the second control-commands by executing the reverse-commands.

A method is provided in a receiving node for handling status information of data units transmitted from a sending node to the receiving node over a radio link. The receiving node detects that a number of RLC Data PDUs transmitted by the peer AM RLC entity are missing, and constructing a STATUS PDU to include NACK_SNs for a first part of the missing RLC Data PDUs and omitting NACK_SNs for the rest of the missing RLC Data PDUs. The receiving node further sets the ACK_SN field of the status PDU such that the status PDU includes only acknowledgments for PDUs having a sequence number equal to or less than the minimum sequence number omitted from the status PDU, and sends sending the STATUS PDU from the AM RLC entity to the peer AM RLC entity over the radio link.

A method is provided in a receiving node for handling status information of data units transmitted from a sending node to the receiving node over a radio link. The receiving node detects that a number of RLC Data PDUs transmitted by the peer AM RLC entity are missing, and constructing a STATUS PDU to include NACK_SNs for a first part of the missing RLC Data PDUs and omitting NACK_SNs for the rest of the missing RLC Data PDUs. The receiving node further sets the ACK_SN field of the status PDU such that the status PDU includes only acknowledgments for PDUs having a sequence number equal to or less than the minimum sequence number omitted from the status PDU, and sends sending the STATUS PDU from the AM RLC entity to the peer AM RLC entity over the radio link.

Embodiments herein relate to a wireless device and an Access and Mobility Management Function, AMF, and methods performed by a wireless device and an AMF, respectively.