Acquired Channel Resource Allocation in 5G Wireless Systems
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Solution Overview
Problem
In wireless communication systems, user equipment (UE) may not always know when it has acquired a channel for transmitting, leading to inefficiencies in resource allocation and communication efficiency, particularly in scenarios like 5G communications where reliable and low-latency transmissions are critical.
Innovation Solution
The method involves acquiring a channel, generating control information indicating available resources for transmission, and transmitting this information to indicate or update the resources available for communication, allowing efficient resource allocation and utilization during channel occupancy time sharing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE performs channel acquisition procedures (LBT) to transmit communications, then the channel utilization is improved, but the UE cannot determine the available resources for transmission in advance, leading to resource allocation inefficiency
Solution Approach 1:
The base station performs preliminary actions by determining and indicating a set of resources (time, frequency, spatial) that the UE can use for transmission after successful channel acquisition. This preliminary resource indication allows the UE to prepare transmission data and configurations in advance, improving resource allocation efficiency while maintaining high channel utilization.
Solution Approach 2:
The base station acts as an intermediary by providing resource indications to the UE based on its knowledge of channel conditions and network status. This intermediary role resolves the information asymmetry between the UE (which performs LBT) and the network (which manages resources), enabling efficient resource allocation without compromising channel utilization.
2Reliability
If the UE waits to determine channel acquisition before allocating resources, then transmission reliability is improved, but transmission latency increases
Solution Approach 1:
The base station performs preliminary resource determination and indication before the UE actually transmits. This allows the UE to have transmission-ready resources prepared in advance, so that when channel acquisition succeeds, the UE can immediately transmit with minimal latency while maintaining reliability through pre-validated resource allocations.
Solution Approach 2:
The resource indication is dynamically provided by the base station based on real-time channel conditions and UE status. This dynamic approach allows the system to adapt resource allocation to current conditions, ensuring transmission reliability while minimizing latency by providing resources as soon as they are determined to be available.
3Measurement precision
If the base station provides resource indications after channel acquisition, then resource allocation accuracy is improved, but the complexity of coordination between base station and UE increases
Solution Approach 1:
The base station extracts and provides only the essential resource indication information needed by the UE for transmission (time, frequency, spatial resources). This extraction approach maintains high resource allocation accuracy by providing precise resource details while reducing coordination complexity by limiting the information exchange to only what is necessary.
Solution Approach 2:
The resource indication is tailored specifically to the UE's situation and the local channel conditions. This localized approach improves resource allocation accuracy by providing UE-specific resource details while managing coordination complexity through context-aware, targeted information provision rather than comprehensive system-wide coordination.
Data Source
AI summary
Aspects described herein relate to configuring communications over an acquired channel, where the configuration may indicate a set of resources used for communicating in at least one direction over the acquired channel. The set of resources may be based on a set of possible starting points within a slot for transmitting the communications.