Multi-Link RNR Signaling for Low-Power WLAN Recovery
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Solution Overview
Problem
Existing wireless local area networks (WLANs) face challenges in managing multi-link scenarios, where access points with different BSSIDs and SSIDs complicate terminal access and network recovery, leading to inefficient data transmission and increased power consumption.
Innovation Solution
A method and device for transmitting multi-link information using RNR (Reduced Neighbor Report) information, which includes MLD parameters to identify multi-link network access devices and terminals, and a message sending mechanism to optimize data reading and saving based on MLD parameters, reducing power consumption while ensuring timely updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminals read and process all neighbor report information in multi-link scenarios, then network recovery accuracy is improved, but power consumption increases
Solution Approach 1:
The patent extracts only the critical MLD parameter from the complete neighbor report information. Terminals receive RNR information containing MLD parameters that identify multi-link network access devices, and only read detailed information when necessary (when MLD parameters indicate changes), rather than continuously processing all neighbor report data.
Solution Approach 2:
The patent implements partial action by having terminals perform selective reading based on MLD parameter changes. When the change sequence field indicates no update, terminals skip detailed information reading. This partial reading approach reduces power consumption while maintaining network recovery accuracy through targeted information acquisition.
2Reliability
If terminals continuously monitor all access points with different BSSIDs, then network access reliability is improved, but processing complexity increases
Solution Approach 1:
The patent segments the monitoring process by introducing MLD parameters as an intermediate layer. Instead of monitoring all BSSIDs directly, terminals first monitor MLD-level changes indicated by change sequence fields. This segmentation allows terminals to group monitoring tasks by multi-link device rather than by individual BSSID, reducing processing complexity while maintaining comprehensive coverage.
Solution Approach 2:
The MLD parameter acts as an intermediary between the terminal and multiple BSSIDs. The change sequence field in RNR information serves as a mediator that signals whether detailed BSSID-level information has changed, allowing terminals to manage complexity through this intermediate indicator rather than directly handling all BSSID variations.
3Productivity
If RNR information includes detailed MLD parameters, then network efficiency is improved, but message size increases
Solution Approach 1:
The patent applies partial action by including only essential MLD parameters (MLD ID and change sequence field) in the RNR information messages. Detailed neighbor report information is excluded from routine transmissions and only retrieved when change sequence fields indicate updates. This partial inclusion maintains network efficiency through timely change notification while minimizing message size during normal operations.
Data Source
AI summary
The embodiments of the present disclosure discloses a method for transmitting multi-link information and device, and a storage medium, which relate to the field of wireless communications. The method includes: RNR information is sent, wherein the RNR information includes an MLD parameter, the MLD parameter includes an MLD ID field, a Link ID field and a Change Sequence field; A first message is sent, wherein the first message includes the RNR information; and after receiving the first message, performing, by a terminal, an operation according to the MLD parameter therein. In the embodiments of the present disclosure, by means of expanding the RNR information, the scenario of a multi-link network access device is satisfied without changing the existing mechanism. After receiving the message including the RNR information, the terminal may identify, according to the MLD parameter in the RNR information, whether a reported network access device belongs to the same multi-link network access device as the currently connected network access device, and performs a corresponding operation according to the MLD parameter. In addition, the setting method of the MLD parameter in the embodiments of the present disclosure is simple, easy to operate and high in practicability.