Multi-Beam PUR Scheduling for Reliable Small Data Uplink
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional small data transfer (SDT) over preconfigured uplink resources (PURs) do not support multi-beam operations, leading to unfavorable performance in certain scenarios.
Innovation Solution
Implement multi-beam techniques for SDT over PURs by associating each PUR occasion with a distinct synchronization signal block (SSB) and transmitting information during a PUR occasion with a reference signal received power (RSRP) greater than a threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional small data transfer over preconfigured uplink resources is used, then device complexity is reduced, but communication reliability deteriorates due to lack of multi-beam support
Solution Approach 1:
The patent segments the uplink transmission by associating different PUR occasions with different SSBs (synchronization signal blocks), each representing a distinct beam direction. This allows the UE to transmit small data packets through multiple beam segments, improving reliability through beam diversity without requiring complex multi-beam processing architecture
Solution Approach 2:
The patent performs preliminary beam selection by measuring RSRP (reference signal received power) of different SSBs before actual data transmission. The UE identifies the best beam(s) in advance and uses preconfigured uplink resources associated with those beams, ensuring reliable transmission without real-time beam management complexity
2Reliability
If multi-beam techniques are implemented for SDT over PURs, then communication reliability improves, but device complexity increases
Solution Approach 1:
The patent enables the UE to autonomously perform beam selection and PUR occasion selection based on preconfigured associations between PURs and SSBs. The UE self-determines which PUR occasion to use by measuring SSB RSRP and matching with preconfigured associations, eliminating the need for complex network-controlled multi-beam management while improving reliability
Solution Approach 2:
The patent pre-configures multiple PUR occasions associated with different SSBs before actual data transmission. This beforehand preparation provides a cushion of pre-established beam paths, allowing the UE to quickly select an appropriate beam without real-time beam management overhead, thus improving reliability without proportional increase in device complexity
3Object-affected harmful factors
If PUR occasions are associated with distinct SSBs for multi-beam operation, then interference is reduced, but resource allocation complexity increases
Solution Approach 1:
The patent segments uplink resources by associating different PUR occasions with different SSBs, effectively dividing the resource allocation space. Each PUR occasion is linked to specific beam directions (SSBs), which reduces interference by spatial separation. The UE simply selects the PUR occasion corresponding to the measured best beam, avoiding complex resource allocation algorithms
Data Source
AI summary
Wireless communication techniques that include multi-beam techniques for small data transfer (SDT) over preconfigured uplink resources (PURs) are discussed. A UE may receive an indication of at least one PUR allocated for uplink communication when the UE does not have a RRC connection with a base station. The at least one PUR may include one or more distinct PUR occasions. The UE may also receive an indication of one or more distinct SSBs associated with the one or more distinct PUR occasions. Each PUR occasion of the one or more distinct PUR occasions may be associated with only one SSB of the one or more distinct SSBs. The CE may also transmit information to the base station during a PUR occasion associated with an SSB that is associated with a RSRP that is greater than a threshold. Other aspects and features are also claimed and described.