Paging Signal Resource Grouping to Reduce P-RNTI DCI Collisions
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Solution Overview
Problem
The existing NR R16 standard results in unnecessary power consumption for user equipment (UE) due to ineffective PDCCH monitoring for paging, and the extension of P-RNTI to multiple P-RNTIs leads to collisions between DCIs carrying different P-RNTIs, particularly when CORESET #0 and non-CORESET #0 are configured.
Innovation Solution
The method involves configuring distinct resource configuration information for different node groups, such as R16 and R17 nodes, using separate configuration resources to minimize collisions and optimize monitoring, including time-frequency resources, aggregation levels, and search space configurations, with specific priorities and grouping based on network-defined rules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If P-RNTI is extended to multiple P-RNTIs (MP-RNTI) for each UE, then power consumption is reduced by avoiding ineffective paging monitoring, but collision between DCIs carrying multiple P-RNTIs occurs when CORESET #0 and non-CORESET #0 are configured
Solution Approach 1:
The patent segments UEs into different node groups (R16 nodes and R17 nodes) with distinct configuration resources. R16 nodes monitor only the first signal on first configuration resources, while R17 nodes monitor both first and second signals on respective configuration resources. This segmentation prevents DCI collision by ensuring that DCIs for different node groups are transmitted on separate, non-overlapping resources.
Solution Approach 2:
Different configuration resources are assigned to different node groups based on their specific requirements. R16 nodes receive configuration optimized for their capabilities, while R17 nodes receive additional configuration resources. This local quality approach allows each node group to monitor paging efficiently without causing collisions, as each group operates on its dedicated resources.
2Reliability
If all UEs monitor DCI scrambled by P-RNTI at the same PO moment, then paging delivery is ensured, but unnecessary power consumption occurs for UEs without paging messages
Solution Approach 1:
The patent divides UEs into node groups with different monitoring behaviors. R16 nodes monitor only the first signal configured for their group, while R17 nodes monitor both first and second signals. This segmentation allows the system to maintain reliable paging delivery to all UEs while enabling R17 nodes to avoid monitoring unnecessary signals when they don't have paging messages, thereby reducing power consumption.
Solution Approach 2:
R17 nodes perform partial monitoring by selectively monitoring only the first signal when no paging message is present, and monitoring both first and second signals when paging is detected. This partial action approach reduces unnecessary power consumption while ensuring that paging delivery is not compromised, as R17 nodes still monitor the essential first signal that carries paging information for all nodes.
Data Source
AI summary
A signal sending method and apparatus, a signal receiving method and apparatus, and a storage medium. The method comprises: sending resource configuration information, which includes a first configuration resource and a second configuration resource; sending a first signal on the basis of the resource configuration information, and a first node group and a second node group monitor a first signal on the basis of respectively corresponding configuration resources; generating and sending a second signal, the second signal being sent on a sending resource indicated by the first signal, and the node groups receive the second signal after the first signal is monitored. Nodes are grouped, and respectively corresponding configuration resources are respectively configured for the node groups; the first signal is sent on the basis of the configuration resources, and the first signal carrying the sending resource to instruct the nodes to receive the second signal, to reduce a collision problem in multiple P-RNTI configurations, avoiding invalid paging monitoring of the nodes, and saving the power consumption of the nodes.