Radio Frame Signaling for Joint Transmission Channel Access Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless networks, joint transmission scenarios lead to energy waste and communication interference due to channel access competition among communication nodes, particularly when one node assists another in transmitting to a target receiver.
Innovation Solution
A data transmission method where a first communication node sends a radio frame with indication information to a second node, allowing a fourth node to determine whether to compete for channel access based on this information, thereby optimizing energy usage and reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If joint transmission is performed by multiple access points to improve coverage and service quality, then users at the edge of coverage receive better service, but communication nodes other than the target receiver compete for channel access causing energy waste and interference
Solution Approach 1:
The patent applies preliminary action by having the first access point send indication information in advance to notify other communication nodes about the ongoing joint transmission. This allows second access point to preemptively know that it should not compete for channel access during the joint transmission period, thus avoiding energy waste from unnecessary channel access attempts while maintaining the reliability benefits of joint transmission
2Reliability
If joint transmission is performed by multiple access points to improve coverage and service quality, then users at the edge of coverage receive better service, but communication nodes other than the target receiver compete for channel access causing interference
Solution Approach 1:
The patent applies preliminary action by sending indication information before the joint transmission occurs. The second access point receives this indication in advance and refrains from transmitting during the joint transmission period, thereby preventing communication interference from being generated in the first place while preserving the service reliability improvements from joint transmission
3Productivity
If the second access point competes for channel access after receiving a radio frame, then it can transmit its own data, but it cannot receive the radio frame transmitted by the first access point and its transmission interferes with the joint transmission
Solution Approach 1:
The patent uses indication information as an intermediary mechanism that mediates between the second access point's need to transmit data and the requirement for successful joint transmission. The indication information carries timing and authorization data that allows the second access point to know when it is safe to transmit, thereby maintaining both productivity and joint transmission reliability
4Loss of energy
If the second access point refrains from competing for channel access during joint transmission, then interference is reduced and energy is saved, but the second access point must wait longer to transmit its own data
Solution Approach 1:
The patent applies feedback by including duration information and timing indicators in the indication information sent to the second access point. This feedback mechanism tells the second access point exactly how long to wait and when it can resume normal channel access operations, thereby minimizing the time loss while ensuring energy saving during the critical joint transmission period
Data Source
Figure 1
Figure 2A~2B
Figure 3~4
AI summary
Provided are a data transmission method and apparatus, and a storage medium. The data transmission method comprises: a first communication node sending a radio frame, which comprises indication information, to a second communication node, wherein the second communication node is associated with a third communication node; the third communication node and the first communication node perform joint transmission; and the indication information is used for indicating that a fourth communication node, other than the second communication node, determines, after same receives the radio frame and according to the indication information, whether to perform channel contention.