DCI Update Timing Rules for UE ACK-Synchronized Transmission Changes
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Solution Overview
Problem
There is a need for improved techniques in wireless communication systems, particularly in enhancing the synchronization of downlink control information (DCI) to synchronize the application time of the application time of the application time of downlink control information (DCI)-based updates, to avoid lengthy delays and ensure synchronization between user equipment (UE) and network entities.
Innovation Solution
The implementation of a set of rules to determine the timing of applying DCI-based updates, such as transmission power control parameters and beam-related updates, to synchronize UE and network entities, avoiding beam mismatches and ensuring timely application of updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a UE applies for a new gNodeB or eNodeB by using a random access procedure, then the network can be extended, but the random access procedure causes access delay and network congestion
Solution Approach 1:
The patent applies preliminary action by having the network side device send advance notification information to the UE before the UE actually needs to access the network. This notification includes parameters such as expected arrival time, departure time, and service requirements, allowing the UE to prepare and select appropriate gNodeBs or eNodeBs in advance, thereby reducing access delay when the UE actually needs to connect.
Solution Approach 2:
The patent implements feedback mechanisms where the network side device receives location information and service requirements from the UE, processes this information, and sends back notification information with recommended gNodeB or eNodeB parameters. This feedback loop enables the UE to make informed decisions about which network node to access, optimizing both access speed and network resource utilization.
2Adaptability or versatility
If a UE applies for a new gNodeB or eNodeB by using a random access procedure, then the network can be extended, but the random access procedure causes network congestion
Solution Approach 1:
By sending advance notifications containing gNodeB or eNodeB parameters before the UE needs to access the network, the system allows multiple UEs to be pre-coordinated with network nodes. This preliminary arrangement reduces the number of simultaneous random access attempts, thereby decreasing network congestion and maintaining higher throughput during network expansion.
Solution Approach 2:
The patent introduces dynamic parameter selection where the network side device adjusts notification parameters based on real-time network conditions and UE requirements. This dynamic adaptation allows the system to optimize access parameters continuously, reducing congestion by directing UEs to less crowded network nodes while maintaining high throughput.
3Reliability
If downlink control information is not updated timely, then the UE can maintain current operation, but the UE cannot receive timely notifications from the network side device
Solution Approach 1:
The patent implements a feedback mechanism where the network side device sends downlink control information updates to the UE based on real-time network conditions and UE location. This feedback ensures that the UE receives timely notifications about network changes, resource availability, and optimization opportunities, thereby maintaining both reliability and timeliness in communication.
Solution Approach 2:
The network side device performs preliminary actions by sending advance notifications containing updated parameters before the UE actually needs to access or re-access the network. This allows the UE to prepare for upcoming network changes or optimizations, reducing notification delay while maintaining communication reliability.
Data Source
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AI summary
Certain aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for determining when to apply downlink control information (DCI)-based updates. A method that may be performed by a user equipment (UE) includes receiving a downlink control information (DCI) indicating an update to be applied to at least one of an uplink (UL) transmission or a downlink (DL) transmission, determining an application time for applying the update based, at least in part, on a slot where an acknowledgement (ACK) was transmitted, and applying the update in accordance with the determined application time.