PUSCH OCC Sequence Mapping for Concurrent Frequency Reuse

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Solution Overview

Problem

Existing wireless communication systems face inefficiencies in resource utilization due to the lack of clear instructions for applying orthogonal cover code (OCC) sequences, leading to reduced communication capacity and throughput, especially when multiple devices transmit concurrently.

Innovation Solution

Implementing flexible application of OCC sequences across both time and frequency domains, including intra-symbol, intra-slot, and inter-slot methods, with parameters provided by network entities to UEs for concurrent transmissions without interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple devices transmit concurrently on the same frequency resources, then system capacity and throughput are improved, but interference between transmissions increases and resource utilization becomes inefficient

Engineering Contradiction:

Improvesystem capacity and throughputVSAvoidinterference between transmissions

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces orthogonal cover code (OCC) sequences as intermediary elements that mediate between multiple concurrent transmissions. These OCC sequences are applied to physical uplink shared channel (PUSCH) transmissions and serve as separating identifiers that allow multiple devices to transmit simultaneously on the same frequency resources without causing harmful interference, thereby resolving the contradiction between improving system capacity and preventing transmission interference

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent utilizes parameter changes by assigning different OCC sequence parameters (such as different OCC lengths and different OCC indices) to different devices. This parameter differentiation enables multiple devices to be distinguished and separated in the signal domain, allowing concurrent transmissions to coexist without interference while maintaining efficient resource utilization

Inventive Principle:

Principle #35Parameter changes

2Productivity

If clear instructions for applying OCC sequences are provided, then resource utilization and communication capacity are enhanced, but signaling overhead increases

Engineering Contradiction:

Improveresource utilization and communication capacityVSAvoidsignaling overhead

Core Design Contradiction:

ProductivityVSLoss of information

Solution Approach 1:

The patent applies partial action by providing OCC configuration parameters only when needed for concurrent transmissions. The network entity configures OCC parameters (such as occLength and occIndex) selectively based on the transmission scenario, avoiding unnecessary signaling overhead while still enabling enhanced resource utilization when multiple devices transmit concurrently on the same resources

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20260046093A1Orthogonal cover code sequence application on frequency resources

Publication Date: 2026.02.12 LENOVO (SINGAPORE) PTE LTD

AI summary

Various aspects of the present disclosure relate to orthogonal cover code (OCC) sequence application on frequency resources. An apparatus, such as a UE, receives signaling that indicates one or more parameters associated with an OCC sequence. The UE applies the OCC sequence to a physical uplink shared channel (PUSCH) transmission based on the one or more parameters. The OCC sequence is applied to the PUSCH transmission for a symbol, the PUSCH transmission includes a repetition of uplink data, and the uplink data is repeated on a set of frequency resources associated with the symbol. The UE transmits the PUSCH transmission using the symbol and the frequency resources.