Grouping small burst transmissions for downlink machine-to-machine communications

摘要

Briefly, in accordance with one or more embodiments, a mechanism disclosed herein groups transmissions to machine-to-machine (M2M) devices in the downlink which can significantly reduce the overhead of transmission. One or more bursts to be transmitted in the downlink to one or more respective devices are aggregated and concatenated into a concatenated burst comprising one or more sub-bursts corresponding to the one or more bursts. The concatenated burst is encoded as a single payload to be transmitted, and the payload is transmitted to the one or more devices such that the devices are capable of decoding their respective sub-bursts in the concatenated burst.

主权项

1. A method to aggregate machine-to-machine (M2M) transmissions in the downlink in a wireless network, the method comprising:
aggregating two or more M2M media access control layer (MAC-layer) bursts to be transmitted to one or more respective M2M devices; concatenating the two or more M2M MAC-layer bursts into a concatenated burst wherein the concatenated burst comprises two or more sub-bursts corresponding to the two or more M2M bursts, and wherein the sub-bursts are fixed in size for the one or more M2M devices and further comprise a pad for two or more of the sub-bursts to result in the fixed size, and a size of the sub-burst or the pad, or combinations thereof, is indicated via group control signaling channels, wherein said concatenating is executed until at least a minimum payload size is achieved; performing a single cyclic redundancy check (CRC) on the two or more concatenated M2M MAC-layer bursts of the concatenated burst, the concatenated burst further comprising the single CRC; encoding the concatenated burst as a single payload to be transmitted; and transmitting the payload to the one or more M2M devices such that the M2M devices are capable of decoding their respective sub-bursts in the concatenated burst.