Uplink UE Aggregation Selection with Spatial Separation Indications
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Solution Overview
Problem
Existing wireless communication systems face challenges in reducing latency and increasing efficiency during uplink carrier aggregation due to the time-consuming process of selecting user equipment (UEs) with sufficient spatial separation for data transmission.
Innovation Solution
A network entity provides a spatial separation indication to a first UE, allowing it to select a second UE with adequate spatial separation for uplink aggregation, based on which the first UE forwards data and transmits shared channel transmissions with aggregation flags and sequence numbers to facilitate efficient data combining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a UE manually selects second UEs for uplink aggregation without spatial separation indication, then the UE can perform uplink aggregation, but the latency for selecting suitable UEs increases
Solution Approach 1:
The network entity performs preliminary action by providing spatial separation indications to the first UE before the UE needs to select second UEs for uplink aggregation. This pre-provided spatial separation information enables the UE to quickly identify suitable second UEs without performing time-consuming manual selection, thereby reducing latency while maintaining aggregation efficiency
2Productivity
If the UE selects second UEs with sufficient spatial separation for uplink aggregation, then the throughput and efficiency improve, but the time required for selection increases
Solution Approach 1:
The network entity acts as an intermediary by providing spatial separation indications that mediate between the first UE and potential second UEs. This intermediary information allows the first UE to efficiently identify suitable second UEs with sufficient spatial separation without performing exhaustive manual selection, thus achieving both high throughput and reduced selection time
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may receive, from a network entity, a spatial separation indication that indicates, for each of one or more second UEs, a spatial separation between the first UE and each respective second UE. The first UE may forward first data to a selected second UE of the one or more second UEs, where the first data is forwarded as part of an uplink UE aggregation procedure that is based on the spatial separation indication. The first and second UEs may each transmit, to the network entity, a respective shared channel transmission in overlapping or non-overlapping resources that includes respective data, an aggregation flag, and a sequence number, where the aggregation flag and the sequence number are indicative that the first and second data are to be aggregated in a sequence order.