Patent ID: 7773575
Filing Date: 2010-08-10
Classification: H04J,H04W

Abstract:
1. A communications system, comprising: first and second Time Division Multiple Access (TDMA) mesh networks, each comprising a plurality of wireless nodes; each node of the plurality of wireless nodes within respective first and second TDMA mesh networks comprising a transmitter and receiver that communicate on a primary and at least one secondary frequency and using a TDMA epoch that is divided into at least a beacon interval using the primary frequency and a digital data interval using both the primary and secondary frequencies, wherein said wireless nodes allocate an unused secondary frequency such that a digital data secondary frequency TDMA usage for the second TDMA mesh network falls into an unused portion of the secondary frequency usage map of the first TDMA mesh network, wherein a TDMA epoch for the second TDMA mesh network is offset from the start of a TDMA epoch for the first TDMA mesh network such that TDMA secondary frequency usage of the digital data interval for the second TDMA mesh network falls into an unused portion of the secondary frequency usage in the first TDMA mesh network.