18461444. SOUNDING REFERENCE SIGNALS FOR POSITIONING simplified abstract (QUALCOMM Incorporated)

SOUNDING REFERENCE SIGNALS FOR POSITIONING

Organization Name

QUALCOMM Incorporated

Inventor(s)

Seyong Park of San Diego CA (US)

Alexandros Manolakos of Escondido CA (US)

Weimin Duan of San Diego CA (US)

Jay Kumar Sundararajan of San Diego CA (US)

Wanshi Chen of San Diego CA (US)

Krishna Kiran Mukkavilli of San Diego CA (US)

Tingfang Ji of San Diego CA (US)

Naga Bhushan of San Diego CA (US)

SOUNDING REFERENCE SIGNALS FOR POSITIONING - A simplified explanation of the abstract

This abstract first appeared for US patent application 18461444 titled 'SOUNDING REFERENCE SIGNALS FOR POSITIONING

Simplified Explanation

The patent application describes a method for configuring sounding reference signals (SRS) transmitted by a User Equipment (UE) for positioning or channel estimation purposes. The method enables multiplexing a greater number of UEs by using frequency tone level cyclic shift and symbol level code.

• The SRS is configured with a frequency tone level cyclic shift, which is achieved by jointly processing a number of symbols with an extended cyclic shift structure.
• The SRS is also configured with a symbol group level, indicating the number of symbols associated with a cyclic shift structure.
• An outer code is used to indicate a multiplier applied to the SRS at the symbol level, increasing the multiplexing opportunities.
• The symbol level code further indicates an extended cyclic shift, which results in a linear increase in phase rotation across tones in symbols associated with the symbol group level.

Potential applications of this technology:

• Improved positioning accuracy for UEs in wireless communication systems.
• Enhanced channel estimation for better signal quality and performance.
• Increased capacity and efficiency in multiplexing multiple UEs in a wireless network.

Problems solved by this technology:

• Limited capacity for multiplexing UEs in wireless networks.
• Inaccurate positioning and channel estimation due to interference and noise.
• Inefficient use of frequency resources in wireless communication systems.

Benefits of this technology:

• Higher capacity for accommodating more UEs in a wireless network.
• Improved accuracy in positioning and channel estimation.
• Optimal utilization of frequency resources for better overall system performance.

Original Abstract Submitted

Sounding reference signals (SRS) transmitted by a UE, e.g., for positioning or channel estimation, may be configured for one or both of frequency tone level cyclic shift and symbol level code, which, for example, enables multiplexing a greater number of UEs. The frequency tone level cyclic shift is produced by jointly processing a number of symbols with an extended cyclic shift structure. The SRS may be configured using a symbol group level that indicates the number of symbols associated with a cyclic shift structure, and an outer code that indicates a multiplier applied to the SRS at the symbol level, which increases the multiplexing opportunities. The symbol level code may further indicate an extended cyclic shift indicating a linear increase in phase rotation across tones in symbols associated with the symbol group level.