Wireless Shared Data Channel Transmission with Pre-assigned Parameters
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Solution Overview
Problem
Current HSDPA designs are inefficient for applications with low-throughput and delay-sensitive data, as they result in high overhead due to excessive signaling on the shared control channel and sub-optimal resource allocation, which affects performance for real-time services like VoIP and gaming.
Innovation Solution
Implementing data transmission on a shared data channel without signaling on the shared control channel, using assigned parameters such as channelization codes, modulation schemes, and time intervals to optimize resource usage and reduce overhead, allowing UEs to process transmissions based on pre-assigned settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If signaling is used on the shared control channel to convey dynamic transmission parameters, then the flexibility and adaptability of data transmission is improved, but the overhead and system complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring transmission parameters (channelization codes, modulation schemes, time intervals) for UEs before actual data transmission. This allows UEs to process transmissions based on pre-assigned settings without requiring dynamic signaling during transmission, thereby reducing control channel overhead while maintaining transmission flexibility through the ability to reconfigure parameters when needed.
2Reliability
If continuous monitoring of the shared control channel is implemented, then the reliability of data reception is improved, but the energy consumption and processing load increase
Solution Approach 1:
The patent implements periodic action by assigning specific time intervals during which UEs should monitor for transmissions. Instead of continuous monitoring, UEs only need to check the shared control channel during their assigned time intervals, significantly reducing energy consumption and processing load while maintaining reliable data reception through scheduled monitoring opportunities.
3Productivity
If dynamic resource allocation is used, then the productivity and resource utilization are improved, but the signaling overhead and processing complexity increase
Solution Approach 1:
The patent reduces signaling overhead by pre-allocating resource parameters (channelization codes, modulation schemes, time intervals) to UEs before transmission. This preliminary configuration allows dynamic resource allocation to occur at a higher level without requiring extensive signaling for each transmission, thus maintaining high resource utilization while minimizing the quantity of signaling overhead.
Data Source
AI summary
Techniques for efficient data transmission and reception in a wireless communication system are described. In an aspect, a Node B sends transmissions on a shared data channel to a user equipment (UE) based on at least one parameter assigned to the UE prior to the transmissions. The Node B sends no signaling for the transmissions sent to the UE on the shared data channel. The UE processes the transmissions received from the shared data channel based on the assigned parameter(s). In another aspect, a Node B may send transmissions to a UE in time intervals assigned to the UE. In yet another aspect, a Node B may send transmissions to a UE based on assigned or non-assigned parameters. The Node B sends signaling whenever transmissions are sent with non-assigned parameters. The UE may process a transmission based on parameters obtained from received signaling or the assigned parameters.