QUALCOMM Patent for DFT-S PUCCH with User Multiplexing
Summary
The USPTO has granted QUALCOMM a patent (US12587313B2) for a method of user multiplexing in wireless communications using DFT-S PUCCH. The patent covers techniques for spreading information symbols across resource blocks based on block-spreading codes and performing DFT.
What changed
The United States Patent and Trademark Office (USPTO) has issued patent US12587313B2 to QUALCOMM Incorporated, detailing a new method for user multiplexing in wireless communication systems. The patent specifically addresses the use of Discrete Fourier Transform-spread (DFT-S) based interlace physical uplink control channels (PUCCH) to improve signal transmission. The core innovation involves a wireless device identifying a block-spreading code and communicating a signal where information symbols are spread across resource blocks within a frequency interlace, followed by a DFT operation.
This patent grant represents a new intellectual property asset for QUALCOMM in the telecommunications sector. While it does not impose immediate compliance obligations on other entities, it establishes exclusive rights for QUALCOMM regarding the patented technology. Companies operating in wireless communications, particularly those involved in developing or deploying 5G or similar technologies, should be aware of this patent to avoid potential infringement and to inform their own R&D strategies. The filing date for the application was June 21, 2024, with the patent officially granted on March 24, 2026.
Archived snapshot
Mar 27, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Discrete fourier transform-spread (DFT-S) based interlace physical uplink control channel (PUCCH) with user multiplexing
Grant US12587313B2 Kind: B2 Mar 24, 2026
Assignee
QUALCOMM Incorporated
Inventors
Xiaoxia Zhang, Jing Sun, Kapil Bhattad
Abstract
Wireless communications systems and methods related user multiplexing with discrete Fourier transform (DFT) precoded frequency interlaces are provided. A first wireless communication device identifies a first block-spreading code from a set of block-spreading codes associated with user multiplexing. The first wireless communication device communicates, with a second wireless communication device using a frequency interlace in a frequency spectrum, a first communication signal including a first block of information symbols spread across a set of resource blocks (RBs) within the frequency interlace based on the first block-spreading code. The first communication signal is generated by block-spreading the first block of information symbols based on the first block-spreading code to produce a first block of spread information symbols, performing a DFT on the first block of spread information symbols, and mapping the first block of spread information symbols to the set of RBs.
CPC Classifications
H04L 1/0064 H04L 27/2636 H04J 13/0074 H04J 13/12
Filing Date
2024-06-21
Application No.
18751149
Claims
23
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