Direct Uplink Data Transmission Using Random Access Resources
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Solution Overview
Problem
Existing uplink data transmission methods in wireless communication systems face challenges with high signaling overheads and inefficient resource utilization, particularly in scenarios involving bursty small data packets.
Innovation Solution
A method where a terminal device determines a time-frequency resource for uplink data transmission based on network device indication and configuration information of a random access resource, allowing direct data transmission without the need for a random access preamble, thereby reducing signaling overheads and improving resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional random access procedure is used for uplink data transmission, then terminal devices can establish connection and transmit data, but signaling overheads increase and resource utilization decreases
Solution Approach 1:
The patent combines the random access procedure and uplink data transmission procedure into a single unified process. The terminal device transmits both the random access preamble and uplink data together on the same physical uplink shared channel (PUSCH) resources, eliminating the need for separate signaling steps and reducing overall signaling overhead while maintaining reliable connection establishment and data transmission
Solution Approach 2:
The patent makes the PUSCH resources serve multiple functions simultaneously - they are used both for random access preamble transmission and for uplink data transmission. This multi-functionality allows the same time-frequency resources to accomplish both connection establishment and data transfer, improving resource utilization and reducing signaling overhead
2Reliability
If separate random access and data transmission procedures are used, then connection establishment is reliable, but resource utilization becomes inefficient
Solution Approach 1:
The patent merges the random access procedure and uplink data transmission into a single integrated procedure where both functions are performed simultaneously on the same PUSCH resources, eliminating waste of time-frequency resources and improving overall system productivity while maintaining connection reliability
Solution Approach 2:
The patent enables continuous useful action by allowing uplink data to be transmitted immediately together with the random access preamble without requiring separate transmission steps. This eliminates idle time and ensures that radio resources are continuously utilized for productive purposes, thereby improving resource utilization efficiency
Data Source
AI summary
An uplink data transmission method and an apparatus include or relate to a terminal device which determines, based on indication information of a network device, a time-frequency resource corresponding to a random access resource, or a part of a time frequency resource in the random access resource, to directly transmit uplink data. Configuration information of a time-frequency resource for random access may be reused for configuration information of the time-frequency resource, so that signaling overheads are reduced and a resource utilization is improved.