Time-Domain SRS Scheduling for Adjacent Slot Uplink Gaps
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Solution Overview
Problem
The inefficiency in utilizing transmission time resources due to the time difference between SRS resource sets in adjacent slots, leading to waste of resources in radio communication systems, particularly in scenarios where SRS resource sets can be configured at any position in a single slot.
Innovation Solution
Configuring specific time domain positions for SRS resource sets and uplink channels by indicating starting and ending positions within time domain intervals between these sets, allowing for efficient utilization of the intervals between SRS resource sets in consecutive slots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If SRS resource sets are configured at different positions in adjacent slots, then the time domain resource allocation is flexible, but the transmission time resources between SRS resource sets are wasted
Solution Approach 1:
The network device performs preliminary action by configuring the time domain resource allocation information in advance, including the first position, second position, third position, and fourth position parameters. This allows the user equipment to know ahead of time where the SRS resource sets are located and how to efficiently utilize the intervals between them for uplink channel transmission, preventing time resource waste before it occurs.
Solution Approach 2:
The patent introduces dynamic time domain resource allocation where the positions of SRS resource sets and uplink channels can be flexibly adjusted within slots. The network device can dynamically configure different time domain positions based on actual transmission needs, allowing the system to adapt to varying requirements while efficiently utilizing available time resources between SRS resource sets.
2Device complexity
If time domain intervals between SRS resource sets are left unused, then the configuration is simple, but the slot utilization efficiency is low
Solution Approach 1:
The time domain intervals between SRS resource sets are made multi-functional by allowing them to serve dual purposes: as guard periods for signal separation and as transmission opportunities for uplink channels. The network device configures these intervals to carry uplink channel information, making them serve multiple functions simultaneously and thereby improving slot utilization efficiency without significantly increasing configuration complexity.
Solution Approach 2:
The patent utilizes parameter changes by modifying the time domain position parameters (first position, second position, third position, fourth position) to optimize resource allocation. By adjusting these parameters, the system can reconfigure the timing relationships between SRS resource sets and uplink channels, enabling efficient utilization of intervals while maintaining configuration manageability.
3Device complexity
If fixed time domain positions are used for SRS resource sets, then the resource allocation is straightforward, but the adaptability to different transmission scenarios is reduced
Solution Approach 1:
The patent segments the time domain resources into distinct portions: first time domain units for SRS resource sets, second time domain units for uplink channels, and intervals between them. This segmentation allows each portion to be independently configured and optimized. The network device can allocate different segments to different transmission scenarios, maintaining allocation simplicity while achieving high adaptability through flexible segment configuration.
Data Source
AI summary
A method for transmitting time domain resource configuration information, includes: receiving time domain transmission configuration information transmitted by a network device, where the time domain transmission configuration information includes a first position, a second position, a third position, and a fourth position, where the first position indicates a time domain position of a last time domain unit occupied by a first SRS resource set in a first time slot, the second position indicates a time domain position of a first time domain unit occupied by a second SRS resource set in a second time slot, the third position indicates a starting position of a time domain interval for uplink channel transmission located between the first position and the second position, and the fourth position indicates an ending position of the time domain interval for uplink channel transmission located between the first position and the second position.