Method and NB wireless device for determining whether or not to transmit SR

A wireless device configured to transmit a scheduling request (SR), the wireless device comprising:

• a transceiver;
• at least one processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
• receiving, through the transceiver, a higher layer signal including information regarding a plurality of narrowband physical random access channel (NPRACH) resources, wherein the plurality of the NPRACH resources include a first NPRACH resource for a scheduling request (SR);
• and
• transmitting, through the transceiver, a narrowband random access preamble in the first NPRACH resource of the received information, based on (i) that the wireless device needs to transmit the SR and (ii) that the wireless device need not transmit a narrowband physical uplink shared channel (NPUSCH) signal including hybrid automatic repeat request (HARQ) acknowledgment (ACK)/not-acknowledgment (NACK) information.

A base station configured to receive a scheduling request (SR), the base station comprising:

• a transceiver;
• at least one processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
• transmitting, through the transceiver, a higher layer signal including information regarding a plurality of narrowband physical random access channel (NPRACH) resources, wherein the plurality of the NPRACH resources include a first NPRACH resource for a scheduling request (SR);
• and
• receiving, through the transceiver, a narrowband random access preamble in the first NPRACH resource of the information from a wireless device based on (i) that the wireless device needs to transmit the SR and (ii) that the wireless device need not transmit a narrowband physical uplink shared channel (NPUSCH) signal including hybrid automatic repeat request (HARQ) acknowledgment (ACK)/not-acknowledgment (NACK) information.