Network Configurable Access Procedure for Mobile UE Latency
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Solution Overview
Problem
The growing demand for mobile broadband access leads to increased communications between eNBs and UEs, resulting in repetitive setup steps for data transmissions that consume network bandwidth and UE battery life, increasing data latency.
Innovation Solution
Implementing Event Driven Access and Data Transmission Procedures and Network Configurable Access and Data Transmission Procedures to reduce the frequency of setup steps, allowing for a reduced set of communications when appropriate and reusing saved access data for subsequent transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional Random Access Procedure is performed before each data transmission, then reliable connection establishment is achieved, but network bandwidth is consumed and data latency increases
Solution Approach 1:
The patent performs the Random Access Procedure in advance before data arrives at the UE. The UE initiates RACH, receives RA response with timing advance and uplink grant, and establishes the connection beforehand. This preliminary connection setup allows data to be transmitted immediately upon arrival without waiting for RACH procedures, thereby reducing data latency while maintaining reliable connection establishment.
Solution Approach 2:
The patent segments the data transmission process into two independent phases: (1) connection establishment phase where RACH is performed in advance, and (2) data transmission phase where data is sent immediately upon arrival. This segmentation allows the connection setup to be decoupled from data arrival timing, enabling efficient resource utilization and reduced latency.
2Reliability
If traditional Random Access Procedure is performed before each data transmission, then proper timing synchronization is achieved, but UE battery life is depleted
Solution Approach 1:
The UE performs the Random Access Procedure and obtains timing advance information in advance, before data arrives. This preliminary timing synchronization ensures that when data transmission occurs, the UE is already properly synchronized, eliminating the need for repeated RACH procedures. This significantly reduces UE battery consumption by avoiding multiple power-intensive access attempts.
Solution Approach 2:
The UE uses the timing advance information obtained from the single RACH procedure to self-synchronize subsequent uplink transmissions without needing network assistance or repeated access procedures. This self-service approach maintains timing synchronization accuracy while minimizing energy consumption.
3Reliability
If repetitive setup steps are performed for each data transmission, then proper access procedures are completed, but network bandwidth is consumed
Solution Approach 1:
The UE performs the complete Random Access Procedure in advance, obtaining uplink grant and timing advance information before data arrives. This preliminary action ensures proper access procedure compliance is achieved once, allowing multiple data transmissions to occur without repeating the setup steps, thereby reducing network bandwidth consumption.
Solution Approach 2:
The patent merges the connection establishment function with the data transmission function by performing RACH in advance and reusing the established connection for subsequent data transmissions. This consolidation eliminates redundant setup steps and reduces overall network bandwidth consumption while maintaining access procedure compliance.
Data Source
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AI summary
A method for transmitting data, the method being performed by a UE and comprising receiving and saving at least a portion of UE access data, utilizing at least a portion of the saved UE access data to send more than one data transmission, determining that a predetermined time period associated with the saved UE access data has expired, based on the determining, refreshing the saved UE access data, and configuring the UE, comprising determining whether the UE is mobile, determining a resource allocation granularity of a network serving the UE, and based at least on the mobility determination and the resource allocation granularity determination, setting the predetermined time period. Further, a corresponding UE and a computer-readable medium are described. Also a method of a base station and a corresponding base station are described.