Wireless Signal Reception Scheduling via HARQ Process Segmentation
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Solution Overview
Problem
Current wireless communication systems face challenges in effectively scheduling and transmitting multiple data signals, particularly in efficiently allocating hybrid automatic repeat request (HARQ) process numbers and applying control information across multiple subframes.
Innovation Solution
The method involves receiving downlink control information that schedules multiple subframes, allocating HARQ process numbers, and applying scheduling information to specific subframes while omitting others, with the option to pre-allocate HARQ process numbers and using combinatorial indexing for efficient resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If one control information schedules multiple data signals across multiple subframes, then control signaling overhead is reduced and resource utilization is improved, but allocation of HARQ process numbers becomes more complex and difficult to manage
Solution Approach 1:
The patent segments the allocation of HARQ process numbers by dividing them into different groups or sets, where each group corresponds to specific subframes or data signals. This segmentation allows the system to manage multiple HARQ processes independently, reducing the complexity of allocating and tracking HARQ process numbers across multiple subframes while maintaining efficient resource utilization.
2Productivity
If control information is applied across multiple subframes for scheduling, then spectrum efficiency is improved, but handling and applying control information correctly becomes more difficult
Solution Approach 1:
The patent applies local quality by associating specific control information with particular subframes or resource allocations rather than applying uniform control information across all subframes. This allows the system to optimize control information application for each local context (specific subframe or data signal), making it easier to handle and apply control information correctly while maintaining high spectrum efficiency across the multiple subframes.
3Loss of energy
If multiple data signals are scheduled using single control information, then control signaling overhead is reduced, but reliability of correct signal transmission and reception becomes more challenging to ensure
Solution Approach 1:
The patent implements preliminary action by pre-configuring and pre-notifying parameters such as HARQ process numbers, resource allocations, and other critical scheduling information before the actual data transmission occurs. This preliminary configuration ensures that both the base station and user equipment have a clear understanding of the transmission parameters in advance, reducing control signaling overhead during actual transmission while ensuring reliable signal transmission and reception through pre-established agreements on resource usage.
Data Source
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Figure 3(a)~3(b)
AI summary
The present invention relates to a method for receiving a signal in a wireless communication system and an apparatus for same, and comprises a step of receiving, via a physical downlink control channel, downlink control information including scheduling information for a K number of subframes, wherein K is bigger than 1, the scheduling information is not applied to at least one subframe when the at least one subframe from among the K number of subframes is a special subframe, and wherein the special subframe is at least a subframe configured to a multicast-broadcast single-frequency network (MBSFN), a subframe configured to receive a physical multicast channel (PMCH), a subframe configured so that a positioning reference signal (PRS) is transmitted, or a subframe including a downlink section, a protection section, and an uplink section.