Method for wireless communication in a device with co-existence radio

摘要

Various methods for wireless communication in a device with co-existed/co-located radios are provided. Multiple communication radio transceivers are co-existed/co-located in a user equipment (UE) having in-device coexistence (IDC) capability, which may result in IDC interference. For example, the UE is equipped with both LTE radio and some ISM band applications such as WiFi and Bluetooth modules. In a first method, the network identifies IDC capability by UE identification (e.g., UE ID). In a second method, the UE intentionally performs cell selection or reselection to cells in non-ISM frequency bands. In a third method, the UE signals the existence of ISM band applications via capability negotiation. In a fourth method, the UE signals the activation of ISM band applications by signaling messages (e.g., RRC message or MAC CE). Under the various methods, the UE and its serving eNB can apply FDM or TDM solutions to mitigate the IDC interference.

主权项

1. A method comprising:
detecting an activation of an ISM-band radio transceiver of a user equipment (UE) in a wireless communication system, wherein the UE is equipped with the ISM-band radio transceiver and a coexisting OFDMA-based radio transceiver; switching to RRC_IDLE state if the UE is in RRC_CONNECTED state upon detecting the activation of the ISM-band radio transceiver; and reselecting to a cell in non-ISM frequencies if the UE is in RRC_IDLE state, wherein the reselecting is based on prioritizing the non-ISM frequencies for OFDMA-based communications.