Enhanced inter-RAT mobility support using inter-RAT channel avoidance

摘要

Methods, systems, and devices are described for improving inter-network mobility performance in multiple network wireless communication systems by using channel avoidance information from a first network using a first radio access technology (RAT) to modify inter-RAT behavior of a second network using a second RAT. In some embodiments, the second network queries the first network for channel avoidance information and applies the channel avoidance information in suppressing inter-RAT channel measurements, avoiding inter-RAT redirection, and/or avoiding inter-RAT reselection. In embodiments, inter-RAT channel measurement suppression, inter-RAT redirection avoidance, and/or inter-RAT reselection avoidance is performed by the mobile device. In other embodiments, channel avoidance information of the first network may be communicated to other network entities of the second network and one or more of these entities may modify various inter-RAT behaviors.

主权项

1. A wireless communications device, comprising:
a first modem supporting wireless communications using a first radio access technology (RAT), the first modem comprising: an access failure identification module that identifies a frequency channel as temporarily unavailable for communication using the first RAT; and a channel avoidance module configured to determine avoidance information for the first RAT associated with the identified frequency channel; and a second modem supporting wireless communication using a second RAT, the second modem comprising: an inter-RAT channel avoidance module configured to, while the wireless communications device is in communication with a network entity using the second RAT, modify an inter-RAT mobility behavior associated with the frequency channel based at least in part on the avoidance information determined for the first RAT.