Orthogonal Cover Code Configuration for Uplink Interference Mitigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in effectively applying orthogonal cover codes (OCCs) to uplink transmissions, particularly in configuring OCCs with transport blocks over multiple slots (TBoMS), which hinders the mitigation of interference caused by multiplexing multiple users.
Innovation Solution
The implementation of an apparatus and method for wireless communication that allows user equipment (UE) to receive a configuration associated with an OCC, indicating the multiplexing order, OCC codeword, and type of OCC (such as frequency domain OCC, time domain OCC, sub-physical resource block OCC, or sub-slot OCC), and applies this configuration to uplink transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple users are multiplexed in uplink transmissions, then system capacity increases, but interference between users increases
Solution Approach 1:
The patent introduces orthogonal cover codes (OCCs) as intermediary elements that are multiplexed with user signals in the frequency or time domain. These OCCs act as mediators that separate multiple user transmissions, allowing the network node to distinguish between different users by detecting the orthogonal codes, thereby enabling multiple users to share resources without causing harmful interference to each other
2Object-generated harmful factors
If OCC configuration is added to support TBoMS, then interference mitigation improves, but device complexity increases
Solution Approach 1:
The patent segments the OCC configuration into distinct parameters including multiplexing order, OCC type (frequency domain or time domain), and specific OCC sequences. This segmentation allows the configuration to be systematically managed and applied, reducing the complexity of implementing TBoMS by breaking down the overall configuration task into manageable components that can be processed and applied step-by-step
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration associated with an orthogonal cover code (OCC), wherein the configuration indicates a multiplexing order, an OCC codeword for multiplexing, and a type of OCC, and the type of OCC is one of: frequency domain OCC (FD-OCC), time domain OCC (TD-OCC), sub physical resource block (sub-PRB) OCC, or sub-slot OCC. The UE may apply, based at least in part on the configuration, the OCC to an uplink transmission. The UE may transmit the uplink transmission with the OCC applied based at least in part on the configuration. Numerous other aspects are described.