Coordination of Wi-Fi P2P and LTE Data Traffic

摘要

For LTE cellular data and Wi-Fi P2P technology coexistence scenario, a user equipment can generate in-device coexistence (IDC) indication message to the base station for DRX-based IDC solution. LTE data scheduling is described by a set of DRX parameters, while Wi-Fi P2P data scheduling is described by Opportunistic Power Saving (OppoPS) and Notification of Absence (NoA) parameters. When generating the IDC indication message for Wi-Fi P2P group client (GC), the DRX parameters must be selected carefully to maximize efficiency. Even though Wi-Fi shares less time, with proper time alignment, its coexistence performance could be better. For Wi-Fi P2P group owner (GO) with IDC TDM scheduling constraints, OppoPS and NoA should be aligned with DRX parameters to achieve best performance.

主权项

1. A method, comprising:
obtaining LTE discontinuous reception (DRX) parameters by a user equipment (UE) from an LTE base station in a wireless communication network, wherein the UE is a Wi-Fi group client (GC) equipped with an LTE radio transceiver and a co-located Wi-Fi radio transceiver; obtaining Wi-Fi scheduling parameters by the UE from a Wi-Fi group owner (GO), wherein the Wi-Fi scheduling parameters comprise at least one of client traffic window information and absent time information of the GO; determining desired DRX parameters based on the Wi-Fi scheduling parameters; and transmitting an in-device coexistence (IDC) indicator containing the desired DRX parameters from the LTE radio transceiver to the base station.