Base Station Scheduling Using Early UE Capability Signaling
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Solution Overview
Problem
Existing methods for obtaining user equipment (UE) capability information in wireless communications result in reduced resource utilization due to the base station lacking necessary information for proper data scheduling, particularly in control plane-based transmission solutions.
Innovation Solution
A base station obtains UE capability information prior to receiving RRC connection establishment complete signaling, using various methods such as receiving RRC connection requests, paging messages, or sending paging messages with indication information to ensure timely acquisition of UE capability, enabling proper data scheduling resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the base station uses the existing method for obtaining UE capability information (after connection establishment), then the procedure is simple, but the base station cannot properly allocate data scheduling resources, reducing resource utilization
Solution Approach 1:
The patent applies preliminary action by obtaining UE capability information before RRC connection establishment complete signaling is received. The base station receives capability information in the RRC connection request message or through paging messages before the connection is fully established, enabling proactive resource allocation preparation rather than waiting until after connection completion.
2Reliability
If the base station waits for RRC connection establishment complete signaling to obtain capability information, then the information is reliable, but data transmission cannot be optimized timely, reducing efficiency
Solution Approach 1:
The patent resolves this contradiction by performing capability information acquisition in advance during the RRC connection request phase or through paging messages. This preliminary action ensures the base station has reliable capability information before data transmission begins, enabling timely optimization while maintaining information accuracy through standardized reporting mechanisms.
Solution Approach 2:
The patent uses paging messages as an intermediary mechanism to transfer capability information from the UE to the base station. The paging message serves as a mediator that carries capability information before RRC connection establishment, allowing the base station to obtain reliable data through a standardized network message rather than waiting for connection completion.
3Quantity of substance
If the base station requests capability information after connection establishment, then the signaling overhead is minimized, but resource allocation cannot be optimized, leading to energy waste
Solution Approach 1:
The patent merges the capability information reporting with the existing RRC connection request signaling. Instead of adding separate capability information messages, the UE includes its capability information within the RRC connection request message that it already sends for connection establishment, thereby minimizing additional signaling overhead while enabling timely resource allocation.
Solution Approach 2:
The patent performs capability information acquisition in advance during the connection request phase, allowing the base station to prepare resource allocation strategies before data transmission begins. This preliminary action prevents energy waste from suboptimal resource allocation without requiring additional signaling overhead during the data transmission phase.
Data Source
AI summary
Example data scheduling methods and apparatus are described. One example method includes obtaining, by a base station, capability information of user equipment (UE). The first capability information is used to allocate a data scheduling resource for a data transmission of the terminal device, and the data transmission is through a control plane. The base station indicates allocated data scheduling resource to the terminal device. Then, the base station receives, on the data scheduling resource, a radio resource control connection (RRC) establishment complete signaling, where the RRC connection establishment complete signaling includes a non-access stratum (NAS) message, and the NAS message includes data sent by the terminal device.