Uplink Resource Reservation in Random Access Procedures
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing random access procedures in wireless communication systems face issues such as increased latency and battery power overuse due to failures in uplink channel data transmission when uplink channel resources are not guaranteed, leading to a fallback to less efficient access procedures.
Innovation Solution
Implementing a first type of access procedure that reserves and guarantees at least a portion of uplink channel resources based on specific criteria to prevent resource inflexibility, thereby ensuring efficient control signaling and resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If uplink channel resources are reserved to guarantee transmission, then transmission reliability is improved, but resource flexibility deteriorates
Solution Approach 1:
The patent implements dynamic resource allocation where the network can flexibly configure and adjust uplink channel resources based on actual transmission needs. The resource configuration is not fixed but can be adapted through signaling between network and device, allowing the system to maintain reliability while avoiding resource inflexibility.
Solution Approach 2:
The patent changes the parameters of resource allocation by introducing configurable resource sets with different characteristics. The network can select and configure appropriate resources from multiple options, changing allocation parameters dynamically rather than using a fixed configuration, thus balancing reliability and flexibility.
2Reliability
If fallback to second type access procedure is implemented when transmission fails, then transmission reliability is maintained, but latency increases
Solution Approach 1:
The patent performs preliminary actions by pre-configuring multiple resource sets and establishing backup resource allocations before transmission failures occur. When transmission fails, the system can quickly switch to pre-prepared alternative resources rather than initiating a full fallback procedure, reducing latency while maintaining reliability.
Solution Approach 2:
The patent enables skipping the lengthy fallback procedure by implementing direct retransmission mechanisms using alternative resources within the same access procedure type. This allows the system to rush through the retransmission process using pre-configured resources, avoiding the time-consuming fallback to second type access procedure.
3Reliability
If more uplink channel resources are reserved to prevent transmission failure, then transmission reliability is improved, but resource allocation efficiency deteriorates
Solution Approach 1:
The patent applies partial action by reserving only the necessary amount of uplink channel resources required for reliable transmission rather than excessive resources. The system configures resource sets with appropriate sizes based on actual needs, avoiding resource waste while ensuring transmission reliability through adequate but not excessive resource allocation.
4Speed
If first type access procedure is used to expedite access, then access speed is improved, but energy consumption increases due to transmission failures
Solution Approach 1:
The patent implements feedback mechanisms where transmission outcomes are monitored and used to adjust resource allocation and access procedure selection. When transmission failures occur, the system receives feedback and adapts by switching to more reliable configurations or procedures, preventing excessive energy consumption from repeated failed transmissions while maintaining fast access when conditions are favorable.
Data Source
AI summary
A base station and/or a wireless device may communicate for an access procedure. One or more uplink channel resources of an access procedure of a first type may be reserved and/or guaranteed for one or more uplink transmissions. One or more downlink symbols may not be configured for the one or more uplink channel resources.