Interleaving Mode Signaling for Wireless Communication Reliability
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Solution Overview
Problem
In wireless communication systems, the failure to communicate the type of interleaving mode used by user equipment (UE) and base stations can lead to communication failures, especially when different interleaving modes are employed for various communications or purposes, such as VRB to PRB mapping and CSI estimation.
Innovation Solution
The method involves configuring and signaling different interleaving modes, including in-allocation interleaving, where UE and base stations exchange indications for interleaving modes, allowing for efficient mapping of codeblocks to data channels and reporting of CSI based on specific interleaving capabilities and modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different interleaving modes are employed for various communications or purposes, then communication flexibility and adaptability are improved, but communication failures occur due to lack of coordination between UE and base station
Solution Approach 1:
The patent segments the interleaving configuration into separate indications: a first indication for downlink interleaving mode and a second indication for uplink interleaving mode. This allows independent configuration of different interleaving modes for different communication directions, enabling flexibility while ensuring each direction has its own coordinated configuration to prevent failures.
Solution Approach 2:
The patent implements feedback mechanisms where the base station receives capability information from the UE about supported interleaving modes, and the UE receives configuration indications from the base station. This bidirectional feedback ensures both parties are coordinated on the interleaving mode to be used, preventing communication failures while maintaining adaptability.
2Reliability
If interleaving mode indications are exchanged between UE and base station, then communication reliability is improved, but signaling overhead and system complexity increase
Solution Approach 1:
The patent employs dynamic indication mechanisms where interleaving mode configurations can be changed adaptively based on current communication conditions. The base station can send first and second indications to configure different interleaving modes for downlink and uplink, allowing the system to adapt to varying channel conditions while maintaining coordination through standardized signaling procedures.
Solution Approach 2:
The patent changes the parameter being signaled from generic communication settings to specific interleaving mode indicators. By introducing dedicated first and second indications for downlink and uplink interleaving modes respectively, the system efficiently conveys critical configuration information without excessive overhead, as each indication targets a specific parameter needed for reliable communication.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of at least one of a first interleaving mode for mapping codeblocks to a data channel or a second interleaving mode for reporting channel state information (CSI). The UE may map codeblocks to the data channel based at least in part on the first interleaving mode. The UE may report CSI based at least in part on the second interleaving mode. Numerous other aspects are provided.