Base Station Unsolicited Resource Allocation for Wireless Control
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Solution Overview
Problem
In wireless communication systems, contention-based uplink bandwidth allocation for control messages can lead to collisions and transmission delays, making it inefficient for instant transmission of control messages from terminals to base stations.
Innovation Solution
A method for unsolicited resource allocation by base stations, where a packet data unit with a specific field indicates whether unsolicited resources are allocated for uplink control messages, allowing terminals to wait for resource allocation before transmitting, thereby reducing the need for contention-based requests and minimizing delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If contention-based uplink bandwidth allocation is used for control messages, then the terminal can request uplink resources, but it causes collision and transmission delay
Solution Approach 1:
The base station performs preliminary resource allocation by setting the unsolicited resource allocation indicator in the downlink control message before the terminal needs to transmit the uplink control message. This allows the terminal to wait for pre-allocated resources instead of contending for them, eliminating collision and delay while ensuring reliable transmission.
2Productivity
If contention-based uplink bandwidth allocation is used, then the terminal can transmit control messages, but it increases the frequency of bandwidth requests and causes resource wastage
Solution Approach 1:
The base station allocates resources in advance by setting the unsolicited resource allocation indicator, eliminating the need for frequent terminal-initiated bandwidth requests. This reduces energy consumption associated with repeated requests and improves overall transmission efficiency.
3Loss of time
If unsolicited resource allocation is implemented, then control messages can be transmitted without contention, but the base station must manage resource allocation more actively
Solution Approach 1:
The terminal autonomously determines whether to wait for unsolicited resource allocation by checking the indicator in the downlink control message. This self-service mechanism simplifies terminal operation while enabling the base station to manage resources more actively, balancing complexity reduction with improved transmission performance.
Data Source
AI summary
The present invention relates to a resource allocation method of a base station. The method includes generating a packet data unit that includes a first field and a downlink control message, wherein the first field indicates whether unsolicited resource is to be allocated for an uplink control message, transmitting the generated packet data unit to the terminal, allocating resources for the uplink control message, and transmitting the allocated resources to the terminal.