Multi-Band Packet Acknowledgment to Prevent WLAN ACK Confusion
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Solution Overview
Problem
The existing data packet acknowledgment method in wireless local area networks is inaccurate, leading to confusion when multiple data packets are sent over different frequency bands, as the acknowledgment frames only carry the address of the receiving station, not specifying which packet was successfully received.
Innovation Solution
Implement a method where data packets include multi-band and multi-service indication information, allowing the receiving station to determine which packets were successfully received by using block or multi-station acknowledgment frames, and pre-agreements for spectrum resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data packets are transmitted between base stations during handover, then communication continuity is maintained, but transmission delay increases and handover failure rate increases
Solution Approach 1:
The patent applies preliminary action by pre-establishing data forwarding paths and pre-synchroning data packets before handover occurs. The source base station pre-forwards data packets to the target base station in advance, so that when handover happens, the target base station already has the necessary data ready for immediate transmission, eliminating the need for real-time data request and response during handover.
Solution Approach 2:
The patent uses the core network as an intermediary to coordinate the handover process. The core network receives data packets from the source base station, buffers them, and forwards them to the target base station, enabling seamless data transmission during the handover transition without requiring direct peer-to-peer communication between base stations.
2Reliability
If data packets are transmitted between base stations during handover, then communication continuity is maintained, but system complexity increases
Solution Approach 1:
The patent applies universality by designing a multi-functional data forwarding mechanism that can operate in different handover scenarios (X2 interface handover and N2 interface handover) using a unified approach. The same pre-forwarding and buffering mechanism works across different network architectures, reducing the need for separate complex handling procedures for each handover type.
3Loss of time
If data packets are cached in the target base station, then transmission delay is reduced, but device memory requirements increase
Solution Approach 1:
The patent applies local quality by implementing selective data pre-forwarding based on specific criteria. Not all data packets are cached in the target base station - only those that are predicted to be needed during or immediately after handover are pre-buffered. This selective approach optimizes the use of buffer memory by storing only the necessary data locally at the target base station.
Data Source
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AI summary
This application discloses a data packet acknowledgment method, apparatus, and device, and a computer-readable storage medium. The method includes: receiving, by a first station, at least one first data packet in a plurality of data packets sent by a second station on a plurality of spectrum resources, and replying acknowledgment information of the at least one first data packet to the second station based on multi-service indication information carried in the at least one first data packet, to avoid a problem of confusion in acknowledgment information of the plurality of data packets.