Configured Periodic Grant Transmission Feedback for Wireless Devices
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Solution Overview
Problem
Current multicarrier communication systems face challenges in efficiently managing signal timing and resource allocation across multiple carriers, leading to suboptimal performance in terms of data transmission and reception.
Innovation Solution
The implementation of carrier aggregation and dual connectivity techniques, which allow for the coordination of multiple base stations and the use of orthogonal frequency division multiplexing (OFDM) to dynamically allocate resources and synchronize signal timing across carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If carrier aggregation and dual connectivity techniques are implemented to coordinate multiple base stations and synchronize signal timing, then network performance and capacity are improved, but device complexity and signal timing management complexity increase
Solution Approach 1:
The patent introduces a base station as an intermediary that generates and transmits timing offset information to the wireless device. This intermediary provides the device with the necessary timing synchronization data without requiring the device to independently calculate or manage complex timing relationships across multiple carriers, thus resolving the contradiction between improved network performance and reduced device complexity
Solution Approach 2:
The base station performs preliminary timing offset calculations and transmits this timing information to the wireless device before data transmission occurs. This preliminary action allows the device to pre-configure its timing alignment for uplink transmissions across aggregated carriers, eliminating the need for complex real-time timing management during actual data transmission
2Productivity
If orthogonal frequency division multiplexing is used to dynamically allocate resources across multiple carriers, then resource utilization is optimized, but processing complexity and computational requirements increase
Solution Approach 1:
The patent implements dynamic resource allocation where the base station can flexibly assign different resource blocks, modulation schemes, and coding rates to different carriers based on real-time channel conditions. This dynamic approach optimizes resource utilization by adapting to changing network conditions while the base station's centralized control manages the processing complexity, preventing it from falling on the wireless device
3Reliability
If multiple base stations are coordinated for dual connectivity, then network capacity and reliability are enhanced, but timing synchronization requirements and coordination overhead increase
Solution Approach 1:
The patent implements a feedback mechanism where the base station monitors timing alignment status across multiple carriers and dynamically adjusts timing offset information based on observed conditions. This feedback loop ensures reliable timing synchronization across coordinated base stations while minimizing overhead by only transmitting timing corrections when necessary, rather than continuous synchronization signaling
Data Source
AI summary
A wireless device receives, from a base station, at least one first message comprising a first periodicity of resources of a configured periodic grant of a first type. A request for transmission information associated with the configured periodic grant is received. A response is transmitted. The response comprises: a first value based on a number of transmissions via the resources the configured periodic grant; and a second value based on a number of times that the wireless device received no corresponding acknowledgement from the base station in response to the transmissions.