Control Information Sending in Heterogeneous Networks
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Solution Overview
Problem
Network bandwidth is occupied by control information transmission, reducing the capacity for data service in networks like WLAN, where channels are often overwhelmed by control information such as beacon frames, leaving little time for data transmission.
Innovation Solution
A control information sending method and apparatus that redirect control information from a primary standard network to a secondary standard network within a heterogeneous network, allowing the primary network to focus on data service by using the secondary network for control information transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control information is transmitted over the first standard network, then control information can be delivered to clients, but network bandwidth is occupied and data service capacity is reduced
Solution Approach 1:
The patent introduces a second standard network as an intermediary carrier to transmit control information. Instead of directly using the first standard network for both control and data traffic, the system establishes a cooperation relationship between the first and second networks, where the second network serves as a mediator to deliver control information to clients, thereby freeing up bandwidth in the first network for data services
Solution Approach 2:
The patent segments the network functions by separating control information transmission from data service transmission. The first standard network is dedicated to data services, while the second standard network handles control information delivery. This functional segmentation allows each network to optimize its performance for its specific purpose, resolving the bandwidth contention issue
2Reliability
If control information is transmitted over the first standard network, then clients can receive control information, but channel occupancy time increases and data transmission time is reduced
Solution Approach 1:
The second standard network acts as an intermediary that assumes the time-consuming control information transmission tasks from the first network. By offloading these functions to the second network, the first network's channel occupancy time for control information is eliminated, thereby increasing available time for data transmission
Solution Approach 2:
The patent extracts control information transmission from the first standard network's operational scope. The control information delivery function is removed from the first network and reassigned to the second network, allowing the first network to focus exclusively on data services and maximize its transmission efficiency
Data Source
AI summary
Embodiments of this application provide a control information sending method and apparatus, where the method includes: obtaining a control information indication message from a first standard network, selecting a second standard network from one or more other networks that constitute a heterogeneous network with the first standard network, and sending the control information indication message to the second standard network, and then to a client over the second standard network. The control information indication message is used to instruct to substitutively send control information of the first standard network. According to the method and apparatus provided, the control information of the first standard network is substitutively sent over the second standard network, and sending the control information does not need to occupy bandwidth of the first standard network. Therefore, in comparison with the prior art, a network capacity of service data sent over the first standard network can be increased.