Dynamic HS-DPCCH Channel Management for Battery Optimization
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in establishing and managing high-speed dedicated uplink control channels, particularly in the CELL_FACH state, leading to unnecessary battery consumption and potential delays due to the lack of flexible control over the HS-DPCCH channel establishment and termination.
Innovation Solution
A method and apparatus that determine the need for a high-speed dedicated uplink control channel based on network node analysis, using the Iub protocol to provide information for establishing and terminating the channel responsive to downlink packet requirements, allowing for controlled establishment and termination of the HS-DPCCH channel to optimize connectivity and battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the HS-DPCCH channel is continuously established for always-on connectivity, then downlink data transmission efficiency is improved, but user equipment battery consumption increases
Solution Approach 1:
The HS-DPCCH channel transitions from a static always-on state to a dynamic state that can be established and terminated based on network-determined conditions. The network node sends establishment information in the Iub protocol for downlink packets requiring high-speed dedicated control, and termination information when the channel is no longer needed, allowing the channel to adapt its presence to actual transmission requirements.
Solution Approach 2:
The channel establishment and termination is controlled by changing the parameter of channel presence/absence based on network conditions. The network node determines when to establish the HS-DPCCH channel by sending specific information in the Iub protocol, and when to terminate it, thereby dynamically adjusting the channel state to balance transmission efficiency and energy consumption.
2Speed
If the HS-DPCCH channel is established quickly for every downlink packet, then transmission responsiveness is improved, but system complexity increases
Solution Approach 1:
The network node performs preliminary determination of whether HS-DPCCH channel establishment is needed before actual downlink packet transmission. By evaluating packet requirements in advance and sending establishment information proactively in the Iub protocol, the system prepares the channel beforehand, enabling faster response when transmission is actually required without constant channel establishment overhead.
Data Source
Figure 1
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Figure 4a~4b
AI summary
A method comprises determining in a network node (112) that a first channel is to be established between an access node (105, 108, 106) and a user equipment (101-103). The first channel comprising one of an uplink or downlink and being provided between said access node and said user equipment. The first channel provides information for controlling a data channel which is the other of said uplink and downlink and provided between said access node and said user equipment. The data channel is such said user equipment (101) is provided with always on connectivity. The method also comprises providing information (S2, T2) to said access node (105, 106, 108) to cause said first channel to be established responsive to said determination.