Handover failure messaging schemes

摘要

Handover parameter settings are automatically adapted in access points in a system to improve handover performance. Reactive detection techniques are employed for identifying different types of handover-related failures and adapting handover parameters based on this detection. Messaging schemes are also employed for providing handover-related information to access points. Proactive detection techniques also may be used for identifying conditions that may lead to handover-related failures and then adapting handover parameters in an attempt to prevent such handover-related failures. Ping-ponging may be mitigated by adapting handover parameters based on analysis of access terminal visited cell history acquired by access points in the system. In addition, configurable parameters (e.g., timer values) may be used to detect handover-related failures.

主权项

1. A method of communication, comprising:
receiving a first message at a first access point from a second access point, wherein the first access point is a target cell and the first message indicates that an access terminal re-establishing a connection at the second access point experienced radio link failure at the first access point; and sending a second message from the first access point to one of the second access point or a third access point, wherein the second message comprises an indication of a type of handover failure associated with the radio link failure.