1×RTT and HRPD neighbor list support over LTE

摘要

Devices and methods are provided for supporting single carrier Radio Transmission Technology (1×RTT) and High Rate Packet Data (HRPD) neighbor lists over LTE, thereby enabling efficient scans for 3GPP2 neighbors with minimal interruption to the LTE operations both when idle or when in-traffic. In one embodiment, the method may involve accessing a neighbor list, each neighboring system in the list being prioritized based at least in part on whether the access terminal (AT) supports a hybrid mode. For example, the method may involve selecting the 3GPP2 system to handin to based at least in part on the neighbor list.

主权项

1. A method by which an access terminal handles an idle transition from a first wireless communication system to a second wireless communication system, comprising:
accessing a neighbor list, each neighboring system in the neighbor list being prioritized in a preferred order based at least in part on whether the access terminal supports a hybrid mode in which the access terminal is configured to operate simultaneously in Single Carrier Radio Transmission Technology (1×RTT) and Evolved High Rate Packet Data (eHRPD) modes, wherein the preferred order of the neighbor list prioritizes, based on types of technology of each neighboring system in the neighbor list, 1×RTT neighbors over eHRPD neighbors and eHRPD neighbors over High Rate Packet Data (HRPD) neighbors; and selecting the second wireless communication system to handoff to based at least in part on the neighbor list; wherein selecting the second wireless communication system includes: detecting at least one 1×RTT neighbor; in response to the access terminal supporting the hybrid mode, comparing relative thresholds of the first wireless communication system and the at least one 1×RTT neighbor against a respective one of a first wireless communication system signal quality and a 1×RTT signal quality; transitioning to the at least one 1×RTT neighbor when the first wireless communication system signal quality is lower than a first threshold and/or the 1×RTT signal quality is greater than an 1×RTT threshold; detecting any eHRPD neighbors that are associated with the at least one 1×RTT neighbor; selecting one of the associated eHRPD neighbors based at least in part on relative thresholds of the associated eHRPD neighbors; and connecting with the selected one of the associated eHRPD neighbors.