E-HICH Information Combining for Compressed Mode Gaps
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Solution Overview
Problem
In radio networks, the existing mechanisms for transmitting E-DCH HARQ Acknowledgement Indicator Channel (E-HICH) information are inefficient during compressed mode, leading to reduced network throughput due to overlapping transmission gaps, which result in delayed or missed acknowledgments, affecting data retransmissions and overall network performance.
Innovation Solution
A method where previous E-HICH information is combined with current E-HICH information and transmitted in a subsequent interval, allowing user equipment to determine correct data reception and retransmit accordingly, even if the transmission interval overlaps with a compressed mode gap, thereby ensuring timely data transmission without waiting for the next interval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If E-HICH information is transmitted in a transmission interval that fully overlaps with a compressed mode gap, then the network throughput is improved by avoiding delays, but the transmission cannot be completed due to the gap overlap
Solution Approach 1:
The base station performs preliminary action by combining the previous E-HICH information with the current E-HICH information before transmission. This allows the combined information to be sent in the current transmission interval, ensuring that both previous and current acknowledgments are delivered without delay, even when the previous interval overlaps with a compressed mode gap.
Solution Approach 2:
The patent merges the previous E-HICH information with the current E-HICH information into a single combined transmission. This combining allows both information sets to be transmitted together in the current interval, resolving the contradiction by ensuring reliable delivery of both acknowledgments without waiting for separate transmission intervals.
2Quantity of substance
If the transmission interval of previous E-HICH information fully overlaps with a transmission gap, then the transmission resource is saved by not allocating separate resources, but the E-HICH information transmission is delayed or lost
Solution Approach 1:
By merging the previous E-HICH information with the current E-HICH information into a single transmission, the patent avoids the need for separate transmission resources for the previous information. This combining approach eliminates transmission delay while efficiently utilizing transmission resources, as the combined information is sent together in the current interval without requiring additional resource allocation.
3Device complexity
If E-HICH information is not transmitted due to gap overlap, then the system operates simply by skipping transmission, but the network throughput is reduced due to missing acknowledgments
Solution Approach 1:
The base station performs preliminary action by combining E-HICH information before transmission, ensuring that acknowledgments are prepared and ready to be sent in the current interval. This approach maintains relatively simple system operation while preventing throughput reduction, as the combined information is transmitted without requiring complex retransmission protocols or additional system complexity.
Data Source
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AI summary
There is provided a method, a user equipment and a base station that is capable of enhancing network throughput by efficiently transmitting E-HICH information in the radio network. The method comprises combining previous E-HICH information with current E-HICH information when a transmission interval of the previous E-HICH information fully overlaps with a compressed mode gap; and transmitting the combined E-HICH information in a transmission interval of the current E-HICH information. The UE is configured to transmit uplink data even if it is determined that the E-HICH information of the uplink data will not be received before a next uplink transmission interval. Both the previous E-HICH information and the current E-HICH information will be received in the transmission interval of the current E-HICH information. Therefore, the network throughput is effectively enhanced.