Polling device for multicast broadcast service interest indication

A second device, comprising:

• at least one processor;
• and
• at least one memory including computer program code;
• wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the second device to:
• transmit, to a first device, a physical downlink control channel order addressed by a paging radio network temporary identifier for the first device, the physical downlink control channel order comprising a request for an indication that at least one multicast broadcast service is to be received by the first device, wherein the second device transmits the physical downlink control channel order by transmitting downlink control information for at least one of short messages and scheduling information for a paging message, the downlink control information comprising an indication of the physical downlink control channel order;
• and
• receive, from the first device, a random access preamble associated with the at least one multicast broadcast service as a response to the request, wherein the request is associated with information about the random access preamble, the information comprising the number of repetitions of the random access preamble;
• transmit, to the first device, configuration information about an association between the request and the information about the random access preamble, the configuration information indicating that at least part of reserved bits in the downlink control information are used for the request;
• and
• transmit, to the first device, further configuration information about the number of the at least part of reserved bits.

A method, comprising:

• receiving, at a first device from a second device, a physical downlink control channel order addressed by a paging radio network temporary identifier for the first device, the physical downlink control channel order comprising a request for an indication that at least one multicast broadcast service is to be received by the first device, wherein the first device receives the physical downlink control channel order by receiving downlink control information for at least one of short messages and scheduling information for a paging message, the downlink control information comprising an indication of the physical downlink control channel order;
• and
• transmitting, to the second device, a random access preamble associated with the at least one multicast broadcast service as a response to the request, wherein the request is associated with information about the random access preamble, the information comprising the number of repetitions of the random access preamble;
• receiving, from the second device, configuration information about an association between the request and the information about the random access preamble, the configuration information indicating that at least part of reserved bits in the downlink control information are used for the request;
• and
• receiving, from the second device, further configuration information about the number of the at least part of reserved bits.