Communications methods and infrastructure equipment for providing an indication of data transmission without a radio connection
摘要
說明書
Preferably, in embodiments in which multiple MAC subheaders may be included in the modified random access response 612, not all of which have associated DL EDT data included in the modified random access response 612, then the RAR DCI 410 comprises a conventional RA-RNTI. In such embodiments the modified random access response 612 may comprise both information (such as a conventional MAC RAR 550) directed to communications devices which either are not capable of receiving DL EDT data, or do not have DL EDT data destined for them, and DL EDT data destined to one or more other communications devices (such as the communications device 104).
As described above, in a conventional random access procedure, the MAC RAR 550, 560 comprises an UL grant field 556 indicating uplink communications resources which are conventionally used for the transmission by the communications device 104 of the ‘Message 3’ RRC connection request 420.
In some embodiments where the modified random access response 612 includes the DL EDT data 620, the uplink communications resources indicated by the UL grant field 556 in the MAC RAR 550 corresponding to (i.e. intended for the same communications device as) the DL EDT data 620 is used for the transmission by the communications device 104 of acknowledgement information indicating whether or not the DL EDT data 620 was received and decoded correctly (i.e. without detecting any errors) by the communications device 104.
