Uplink Transmission Skipping with Blind Decoding Indicators
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, the existing UL transmission skipping mechanism in user equipment (UE) leads to network inability to distinguish between skipped and failed transmissions, resulting in degraded throughput and power saving benefits due to improper decoding.
Innovation Solution
Implementing a method where the network configures a maximum retransmission attempt and uses a blind decoding scheme with additional indicators (e.g., RV indices and NDI) to differentiate between new and retransmitted UL transmissions, ensuring proper decoding and power saving benefits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the UE operates the UL transmission skipping mechanism to save power, then power consumption of the UE is improved, but the network cannot distinguish between skipped and failed transmissions, causing decoding throughput to deteriorate
Solution Approach 1:
The patent introduces an intermediary indicator (such as a new data indicator or specific field in the uplink transmission) that mediates between the UE's power-saving skipping mechanism and the network's decoding requirements. This intermediary allows the network to distinguish whether a transmission was skipped or failed without requiring the UE to always transmit data, thus preserving both power savings and decoding throughput.
Solution Approach 2:
The patent changes the parameter state by introducing additional indicators or modifying existing fields in the uplink transmission to convey information about transmission status. By encoding the distinction between skipped and failed transmissions in these parameters, the network can properly decode transmissions while the UE maintains power-saving benefits through selective skipping.
2Reliability
If the network performs blind decoding to handle skipped transmissions, then reliability of transmission handling is improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent applies preliminary action by having the UE include indicators or markers in its uplink transmissions that preemptively inform the network about the transmission status. This preliminary information allows the network to avoid complex blind decoding in many cases, as the transmission type is already indicated, thus reducing processing overhead while maintaining reliability.
Solution Approach 2:
The patent segments the uplink transmission into distinct components, including separate indicator fields that convey transmission status information. This segmentation allows the network to process only the necessary portions of the transmission for determining whether blind decoding is needed, reducing overall processing complexity while maintaining reliable handling.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A network of handling uplink (UL) transmission comprises instructions of configuring a maximum retransmission attempt to a communication device; configuring a UL transmission skipping mechanism to the communication device; transmitting a UL grant comprising a first modulation and coding scheme (MCS) and an allocation of a first resource to the communication device for performing the UL transmission; receiving the UL transmission generated according to the first MCS in the first resource according to the UL transmission skipping mechanism; decoding the UL transmission for a plurality of times according to an error control coding (ECC) scheme, wherein the UL transmission is a first redundant version (RV) corresponding to a new transmission with a first RV index or a second RV corresponding to a retransmission with a second RV index; and transmitting an acknowledgment indicating whether the UL transmission is decoded successfully to the communication device.