| 主权项 |
1. A communications device for Multi-Tone Mask (MTM) mode communications at a first router on a powerline communications (PLC) channel in a PLC network including a subnetwork including at least said first router associated with a plurality of nodes, comprising:
a memory which stores a broadcast transmission MTM (BT-MTM) communications algorithm; a modem coupled to said memory, said modem comprising: a processor; wherein said processor is communicably coupled to said memory, and wherein said processor is programmed to implement said BT-MTM communications algorithm, said BT-MTM communications algorithm:
obtaining time assignments and TM assignments from a received a super-frame spanning a time period including:
a plurality of beacon frames in a plurality of beacon slots within a beacon period, with each of said plurality of beacon frames in one of N TMs, where N is greater than 1,a contention access period (CAP) including a plurality of CAP slots, wherein one of said CAP slots is provided for each said N TMs, anda poll-based contention-free period (CFP),wherein said plurality of beacon frames provide said time assignments within said super-frame including time assignments for said plurality of CAP slots and for said CFP, and said TM assignments for said N TMs in said plurality of CAP slots; a PLC transceiver communicably coupled to said modem for transmitting frames on said PLC channel, wherein said modem configured for responding to a broadcast frame received on said PLC channel from one of said plurality of nodes, another router in said subnetwork, or a router in another subnetwork by directing information in said broadcast frame to said PLC transceiver, wherein said PLC transceiver forwards said broadcast frame on said PLC channel in each of said N TMs within said time period, wherein said super-frame further comprises an inter router/inter LV node communication slot, wherein said broadcast frame is transmitted by a second node of said plurality of nodes, wherein said broadcast frame is received by a first node of said plurality of nodes, wherein said TM assignment provided by said plurality of beacon frames for said first node for uplink communications is a first uplink TM, and wherein said forwarding further comprises said first node transmitting said broadcast frame at said first uplink TM to said first router. |
