Downlink Data Segmentation for Wireless Throughput
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Solution Overview
Problem
In wireless communication systems supporting MIMO, the limitation of the number of receiving antennas in user equipment (UE) restricts the throughput, making it difficult to efficiently transmit or receive large downlink signals.
Innovation Solution
The method involves transmitting part of the downlink data to a paired second UE when the first UE's data reception capability is exceeded, allowing for simultaneous transmission and sharing of data between the UEs, with the base station allocating resources and selecting the second UE based on measurement reports from the first UE.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If downlink data is transmitted to a single UE, then the transmission process is simple, but the throughput is limited by the UE's receiving antenna capability
Solution Approach 1:
The downlink data is segmented into multiple parts and transmitted to different UEs (first UE and second UE). Each UE receives a portion of the total data, which is then combined at the first UE to achieve the complete data reception. This segmentation allows the system to overcome the receiving antenna limitation of a single UE while distributing the reception capability across multiple devices.
2Productivity
If the number of receiving antennas in UE is increased, then the data reception capability is improved, but the device complexity and cost increase
Solution Approach 1:
The patent merges the receiving capabilities of multiple UEs (first UE and second UE) to collectively receive downlink data that exceeds the capability of a single UE. By pairing UEs and enabling cooperative reception, the system achieves enhanced data reception capability without requiring any single UE to have a large number of receiving antennas, thus avoiding the associated complexity and cost increases.
Data Source
AI summary
A method for transmitting a downlink signal by a base station in a wireless communication system comprises transmitting at least a part of downlink data to a first user equipment (UE); and transmitting the other part of the downlink data of the first UE to a second UE that is paired with with the first UE when a size of the downlink data of the first UE exceeds a data reception capability of the first UE, wherein transmission for the first UE and transmission for the second UE are performed at the same time, and the other part of the downlink data of the first UE, which are transmitted to the second UE, may be shared with the first UE through direct communication between the first UE and the second UE.