Method and device for configuring receive buffer applied to multi-path transmission

Abstract

The invention relates to the field of mobile communication, in particular to the technology of configuring a receive buffer applied to multi-path transmission. A method for configuring the receive buffer applied to the multi-path transmission comprises the following steps: measuring to obtain a round trip time parameter RTT of each single path; determining a required receive buffer size abuf_sizeof each single path in multiple paths; according to the RTT and the abuf_size of each single path, determining a required buffer size bufs_size of the multiple paths; and configuring the receive buffer applied to the multi-path transmission according to the determined bufs_size. The invention also provides a device for configuring the multi-path transmission protocol receive buffer, and a transmission path selecting device and method. The required size of the multi-path receive buffer determined according to the required receive buffer size and the round trip time parameter of each single pathis more accurate, so the configuration performed on the receive buffer according to the determined required size of the multi-path receive buffer is more reasonable.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to the configuration technology corresponding to the receiving buffer for multi-path transmission. Background technique [0002] The future mobile communication network presents a development trend of broadband and the coexistence of various heterogeneous wireless access networks. In a heterogeneous network environment, it is common for multiple wireless access networks to cover the same area and provide services; on the other hand, with the reduction of network interface costs, multi-mode mobile terminals have become a development trend, and mobile terminals Has multiple heterogeneous wireless interfaces, such as Wi-Fi (Wireless Fidelity, wireless fidelity), 2.5G (2.5th generation mobile communication), 3G (3rd generation mobile communication), WiMAX (World Interoperability for Microwave Access, global microwave access interoperability), etc. In an area covered by multiple het...

AI Technical Summary

Problems solved by technology

[0006] The inventors of the present invention have found that according to the above-mentioned first receiving buffer configuration method, the configured buffer is too large. For mobile terminal devices with tight memory resources, this configuration method will cause memory resources to be more tense; and the second configuration method Then an overly wide configuration range is given (anything greater than 128KB is acceptable). According to this method, it is impossible to determine how much receiving buffer to configure in actual situations; if the configured receiving buffer is too small, the throughput of the transmission protocol will be limited; if The configured receiving buffer is too large, which will cause more tension on memory resources.

Moreover, even if a more appropriate receiving buffer size is configured based on experience, the multi-path of mobile terminal communication may change. After some transmission paths change, the receiving buffer configured by this static method may no longer It is suitable for the current multi-path network situation

Therefore, the multi-path transmission protocol receiving buffer configuration method in the prior art is unreasonable in practical applications: it cannot guarantee the throughput of the transmission protocol without occupying too many resources, and cannot dynamically adapt to the network performance status of the path. change to change

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