TECHNICAL FIELD

This patent document generally relates to systems, devices, and techniques for wireless communications.

BACKGROUND

Wireless communication technologies are moving the world toward an increasingly connected and networked society. The rapid growth of wireless communications and advances in technology has led to greater demand for capacity and connectivity. Other aspects, such as energy consumption, device cost, spectral efficiency, and latency are also important to meeting the needs of various communication scenarios. In comparison with the existing wireless networks, next generation systems and wireless communication techniques need to provide support for an increased number of users and devices, thereby requiring robust interference mitigation when using multiple access protocols.

SUMMARY

This document relates to methods, systems, and devices for multiple access in the presence of interference. The disclosed technology describes methods that can be implemented at a plurality of mobile devices (or terminals, or user equipment) to ensure that they can access the network with minimal interference from each other.

In one aspect, a wireless communication method is provided to comprise: generating, from information bits, a modulated signal; spreading the modulated signal using a spreading code to provide a spread data signal; processing the spread data signal through a randomization; and transmitting an orthogonal frequency division multiplexing (OFDM) signal based on an output of the processing.

In another aspect, a wireless communication method is provided to comprise: generating, from information bits, a modulated signal; performing a Discrete Fourie Transform (DFT) operation to the modulated signal to provide a transformed signal; spreading the transformed signal using a spread code; and transmitting an output of the spreading.

In another aspect, the above-described methods are embodied in the form of processor-executable code and stored in a computer-readable program medium. In another aspect, a device that is configured or operable to perform the above-described methods is disclosed.

The above and other aspects and their implementations are described in greater detail in the drawings, the descriptions, and the claims.

