Uplink Resource Configuration for Cell Sleep Mode Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in managing uplink transmissions during cell sleep modes, leading to inefficiencies and increased power consumption in network entities like NR base stations.
Innovation Solution
Configuring uplink resources and indicating cell sleep modes to enable efficient uplink communications, allowing subsets of resources to operate during sleep modes, thereby optimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the cell operates in sleep mode to reduce power consumption, then energy efficiency is improved, but uplink transmission capability is degraded
Solution Approach 1:
The patent segments uplink resources into different types (random access resources, scheduling request resources, configured grant resources) and allows selective operation during cell sleep mode. The network entity can configure specific uplink resources that remain active or are adjusted during sleep periods, enabling partial functionality to maintain while reducing overall power consumption.
Solution Approach 2:
The patent implements dynamic configuration of uplink resources based on cell sleep mode states. The network entity can dynamically adjust which uplink resources are available during sleep mode through RRC signaling, MAC CE, or DCI, allowing the system to adapt resource allocation to current operational requirements and sleep mode demands.
2Reliability
If uplink resources are configured to operate during cell sleep mode, then communication effectiveness is maintained, but power consumption increases
Solution Approach 1:
The patent applies local quality by allowing specific uplink resources to maintain operational characteristics during cell sleep mode while other resources are reduced or deactivated. Different uplink resource types can have different operational states - for example, random access resources may remain fully functional while scheduled uplink resources are reduced, creating localized quality variations across the resource spectrum.
Solution Approach 2:
The patent changes operational parameters of uplink resources based on cell sleep mode status. The network entity can modify resource allocation parameters, timing parameters, and power parameters dynamically to balance communication effectiveness with power consumption requirements during different operational modes.
3Use of energy by moving object
If the cell enters sleep mode frequently to optimize energy efficiency, then power consumption is reduced, but transmission latency increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring uplink resources that can be quickly activated during cell sleep mode. The network entity can pre-allocate specific resources for urgent transmissions and maintain their configuration even during sleep periods, allowing rapid response without full cell activation and thus reducing latency while maintaining energy efficiency.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, a configuration of uplink resources associated with a cell. The UE may receive an indication that the cell is in a sleep mode, wherein at least a subset of the uplink resources occurs when the cell is in the sleep mode. The UE may transmit one or more communications based at least in part on the configuration of the uplink resources associated with the cell and the indication that the cell is in the sleep mode. Numerous other aspects are described.