Time division multiplexing method and wireless communication device for alleviating in-device coexistence interference

Abstract

A method of TDM in-device coexistence (IDC) interference avoidance is proposed. In a wireless communication device, a first radio module is co-located with a second radio module in the same device platform. The first radio module obtains traffic and scheduling information of the second radio module. The first radio module then determines a desired TDM pattern based on the traffic and scheduling information to prevent IDC interference with the second radio module. The first radio module also transmits TDM coexistence pattern information based on the desired TDM pattern to a base station. In one embodiment, the TDM coexistence pattern information comprises a recommended TDM pattern periodicity and a scheduling period to maximize IDC efficiency subject to limited level of IDC interference possibility. In one specific example, the TDM coexistence pattern information comprises a set of discontinuous reception (DRX) configuration parameters defined in long-term evolution (LTE) 3GPP standards.

Description

[0001] Cross References to Related Applications [0002] This application claims the following priority under 35 U.S.C. §119: U.S. Provisional Application No. 61 / 388,687, filing date 2010 / 10 / 1, titled "Method of TDM In-Device Coexistence Interference Avoidance". This application is hereby incorporated by reference in its entirety. technical field [0003] Embodiments disclosed herein relate to wireless network communications, and more particularly to time division multiplexing solutions for mitigating in-device coexistence (IDC) interference. Background technique [0004] Today, ubiquitous network access has been basically realized. From a network infrastructure perspective, different networks belong to different layers (for example, distribution layer, cellular network, hotspot layer, personal network layer, and fixed / line layer) that provide different levels of coverage and connectivity to users . Because the coverage of a particular network is not available in all loc...

AI Technical Summary

Problems solved by technology

[0008] In addition to non-ideal TX filter and RF design, non-ideal RX filter and RF design can also cause unacceptable IDC interference

For example, some RF components may saturate due to insufficiently filtered transmit power from another device's transceiver, which results in saturation of the Low Noise Amplifier (LNA) and causes Digital Converter (Analog to Digital Converter, ADC) does not work properly

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