Wireless Link Availability Signaling for EMLSR Access Control
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Solution Overview
Problem
In EMLSR communication, when a communication terminal cannot detect a control frame on any pre-configured link, it is difficult to specify a single radio link for subsequent operations, leading to access control delays and inefficient data transmission.
Innovation Solution
A wireless communication control device that includes a communication control unit to receive and transmit information indicating available links, allowing the device to specify a suitable link for communication based on the received information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If EMLSR STA waits for control frame on all pre-configure links, then it can detect available links, but it causes access control delays and increases time consumption
Solution Approach 1:
The patent applies preliminary action by having the AP pre-notify the EMLSR STA about available single radio links before data transmission begins. This is achieved through including available link information in downlink data frames or separate control frames, allowing the STA to prepare in advance rather than waiting passively on all links.
Solution Approach 2:
The patent extracts the link detection function from the passive waiting process. Instead of the STA monitoring all links for control frames, the AP actively provides link availability information through data frames or control frames, separating the detection burden from the STA and reducing its time consumption.
2Ease of operation
If EMLSR STA monitors all pre-configure links for control frames, then it can specify next single radio link, but it increases device complexity and processing overhead
Solution Approach 1:
The patent introduces an intermediary mechanism where the AP acts as a mediator that provides link availability information to the EMLSR STA. This intermediary approach through structured control frames or data frame extensions simplifies the STA's operation by providing centralized link information rather than requiring distributed monitoring across all links.
Solution Approach 2:
The patent applies universality by enabling data frames to serve multiple functions - not only carrying downlink data but also conveying available single radio link information. This multi-functionality reduces the need for separate monitoring mechanisms and simplifies the overall system operation.
3Reliability
If redundant frame exchanges are performed to detect available links, then link availability is confirmed, but it reduces data transmission efficiency
Solution Approach 1:
The patent merges the link availability confirmation process with the existing data transmission framework. By incorporating available link information into downlink data frames or control frames that are already part of the transmission protocol, the system confirms link availability without requiring separate redundant frame exchanges, thus maintaining data transmission efficiency.
Solution Approach 2:
The patent applies preliminary action by providing link availability information in advance through downlink data frames before actual data transmission on the specified link begins. This preliminary notification eliminates the need for redundant confirmation frames during the transmission process, improving overall productivity.
Data Source
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AI summary
A wireless communication control device performs control to receive first information from a wireless communication device via one link of a plurality of links preset with the wireless communication device, and to transmit second information indicating an available link of the plurality of links.