Multiple Uplink Channel Selection for Frequency Diversity
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently allocating frequency resources for multiple channels, leading to reduced reliability due to lack of frequency diversity and excessive resource allocation, resulting in unnecessary signaling overhead and power consumption.
Innovation Solution
A network entity allocates multiple channels with different frequency resource allocations, and a user equipment selects and transmits on a subset of these channels, reducing unnecessary transmissions and optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple channels are allocated to a UE, then frequency diversity and communication reliability are improved, but signaling overhead and processing complexity increase
Solution Approach 1:
The patent divides the multiple allocated channels into two categories: monitored channels and non-monitored channels. The UE selectively processes only the monitored channels based on specific criteria (such as whether the channel contains UCI or is a PUCCH), while ignoring non-monitored channels. This segmentation reduces processing complexity while maintaining reliability by ensuring that important channels are still monitored and transmitted.
2Reliability
If multiple channels are allocated to a UE, then frequency diversity is improved, but signaling overhead increases
Solution Approach 1:
The patent extracts and identifies specific channels from the allocated set as 'monitored channels' based on predefined criteria (such as channels containing UCI or PUCCH). By extracting only the necessary channels for monitoring and transmission, the system maintains frequency diversity benefits from having multiple allocated channels while reducing signaling overhead by not requiring the UE to process all allocated channels equally.
3Reliability
If all allocated channels are transmitted, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent segments the allocated channels into monitored and non-monitored categories. The UE transmits only on monitored channels (such as PUCCH channels or channels containing UCI), while refraining from transmission on non-monitored channels. This selective transmission approach maintains communication reliability by ensuring critical information is transmitted while reducing power consumption by avoiding unnecessary transmissions on all allocated channels.
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. In some systems, a network entity may transmit, to a user equipment (UE), scheduling information that allocates multiple uplink channels of a same channel type to the UE. The scheduling information may indicate respective sets of frequency resources for each of the uplink channels. The network entity may transmit an indication that uplink channel selection by the UE is enabled. The UE may select a first uplink channel from the multiple uplink channels allocated by the scheduling information based on the indication that uplink shared channel selection is enabled. The UE may transmit an uplink message via the first uplink channel, and the UE may refrain from transmitting via other uplink channels of the multiple uplink channels allocated by the scheduling information based on selecting the first uplink channel.