Uplink Signaling Multiplexing Under Overlapping Resource Latency Limits
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Modern wireless communication systems face challenges in efficiently managing overlapping and ambiguously assigned communication resources, particularly for uplink transmissions, which can lead to interference and failure to meet latency requirements.
Innovation Solution
A method and device for multiplexing transmissions with different transmission qualities and priorities by using a common resource structure that ends before a predetermined time window, allowing for efficient resource utilization while adhering to latency requirements, and dropping or postponing transmissions if the common resource structure is not available in time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple transmissions with different priorities are multiplexed on overlapping resources, then resource utilization efficiency is improved, but interference between transmissions increases and latency requirements may not be met
Solution Approach 1:
The patent segments the resource structure into multiple parts: a first resource structure for high-priority transmissions and a second resource structure for low-priority transmissions. The wireless device determines whether to multiplex based on whether the combined transmission can meet the latency requirement, effectively segmenting the decision space into multiplexing and non-multiplexing scenarios.
Solution Approach 2:
The patent introduces dynamic resource allocation where the wireless device adaptively selects between multiplexing and non-multiplexing modes based on real-time conditions. The device determines whether to transmit on a common resource structure or separate resource structures by evaluating whether the common transmission can satisfy latency requirements, making the resource allocation dynamic rather than static.
2Loss of information
If transmissions are multiplexed on a common resource structure, then signaling overhead is reduced, but the ability to meet strict latency requirements deteriorates
Solution Approach 1:
The patent segments the signaling approach into two parts: a compact common resource structure indication that reduces overhead, and a separate latency evaluation mechanism that ensures timing requirements are met. The network device configures the wireless device with resource structure information, and the device evaluates whether multiplexing on the common structure would violate latency requirements before proceeding.
Solution Approach 2:
The patent applies preliminary action by having the network device pre-configure resource structure information including time domain positions and frequency domain resources before actual transmission. The wireless device performs preliminary evaluation of whether multiplexing can meet latency requirements based on this pre-configured information, making the latency check happen before the transmission decision is finalized.
3Reliability
If separate resource structures are used for different transmissions, then latency requirements are reliably met, but resource utilization efficiency decreases
Solution Approach 1:
The patent implements dynamic resource allocation where the wireless device selects between multiplexing on a common resource structure and using separate resource structures based on real-time latency evaluations. When the common structure can meet latency requirements, multiplexing is used for high efficiency; when it cannot, separate structures are used to guarantee latency, making the system adaptive to varying conditions.
Solution Approach 2:
The patent changes the resource allocation parameters dynamically based on transmission conditions. The wireless device adjusts whether to use a common resource structure or separate resource structures by evaluating parameters such as time domain positions, frequency domain resources, and latency requirements. This parameter adjustment allows the system to optimize between efficiency and reliability based on current conditions.
Data Source
AI summary
A method of operating a wireless device in a wireless communication network, the wireless device being triggered for transmission of first information utilising a first resource structure and being associated to a first transmission quality, the wireless device also being triggered for transmission of second information utilising a second resource structure and being associated to a second transmission quality, the first resource structure and the second resource structure overlapping at least partly in time, the method including transmitting the first information and the second information utilising a common resource structure if the common resource structure and/or the transmission utilising the common resource structure ends or is expected to end in time before a time domain end of a predetermined time window. The disclosure also pertains to related devices and methods.