Joint SPS Activation Across Carriers to Cut Signaling Overhead
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Solution Overview
Problem
Existing wireless communication systems face increased signaling overhead due to separately configured and independently activated or deactivated uplink and downlink semi-persistent scheduling (SPS) configurations, which are inefficient in handling bursty traffic.
Innovation Solution
Implementing joint semi-persistent scheduling (SPS) configurations that allow for the simultaneous activation, deactivation, or modification of multiple SPS configurations with a single control message, reducing signaling overhead and enhancing coordination between uplink and downlink SPS configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate control messages are used to activate uplink and downlink SPS configurations independently, then each configuration can be activated individually, but signaling overhead increases
Solution Approach 1:
The patent combines multiple independent SPS configuration activation operations into a single joint control message. The network device transmits one control message that simultaneously activates both uplink SPS configuration and downlink SPS configuration, eliminating the need for separate control messages and reducing signaling overhead while maintaining independent activation capability.
2Adaptability or versatility
If multiple SPS configurations are activated separately, then each configuration can be managed independently, but coordination between uplink and downlink configurations becomes inefficient
Solution Approach 1:
The patent merges the activation of uplink and downlink SPS configurations into a single joint operation through one control message, enabling simultaneous activation that improves coordination efficiency between uplink and downlink configurations while still allowing independent management of each configuration's parameters.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support joint semi-persistent scheduling (SPS) configuration. For example, a user equipment (UE) may receive a first control message indicating one or more uplink SPS configurations (e. g., configured grant (CG) configurations) and one or more downlink SPS configurations. Additionally, the UE may receive a second control message activating two or more SPS configurations of the one or more uplink SPS configurations, or the one or more downlink SPS configurations, or both. In some cases, the two or more SPS configurations that are activated may be associated with one or more component carriers (CCs). The UE may communicate with a network entity based on the two or more SPS configurations that are activated.