An unlicensed spectrum edge sharing method and device for multi-hop communication between terminals

Abstract

The invention provides an unlicensed spectrum edge sharing method, device, electronic equipment and storage medium for multi-hop communication between terminals. The method includes: receiving sensing results of unlicensed channels from multiple first terminals in the cell, obtaining an interference value of each unlicensed channel in the sensing results, and selecting the unlicensed channel with the smallest interference value as the target unlicensed channel, Divide the target unlicensed channel into multiple sub-channels, combine time-domain resources to obtain multiple time-frequency resources, and allocate time-frequency for multiple first terminals according to the utility of each first terminal on each time-frequency resource resource. By selecting the unlicensed channel with the smallest interference value as the target unlicensed channel, and assigning time-frequency resources to multiple first terminals according to the utility of each first terminal on each time-frequency resource, it is possible to reduce the impact on Wi‑Fi In the case of system interference, increase the upper limit of users that the communication system can support, and increase the sum of the transmission rates of all LTE users and multi-hop D2D users.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for sharing an unlicensed spectrum edge for multi-hop communication between terminals. Background technique [0002] In a hotspot area with a large number of multi-hop (multi-hop D2D) communications between terminals, the licensed spectrum of the existing cellular network may not be able to meet the data requirements of this hotspot area, and in related technologies, such as Wi-Fi Direct technology, is To achieve Wi-Fi direct connection between different devices to transmit data, it can only build a network through the IEEE802.11 protocol. In this way, users can only establish a D2D connection by using one user as an access point and another user accessing. [0003] In Wi-Fi direct technology, Wi-Fi direct data transmission is used to offload cellular data traffic. However, the IEEE 802.11 protocol used by Wi-Fi direct is a best-effort service,...

AI Technical Summary

Problems solved by technology

[0003] In Wi-Fi direct technology, Wi-Fi direct data transmission is used to offload cellular data traffic. However, the IEEE 802.11 protocol used by Wi-Fi direct is a best-effort service, which does not guarantee that users will be able to receive If other Wi-Fi users are using the current channel, they cannot access it, so the quality of service cannot be guaranteed, and the lack of coordination between the cellular and Wi-Fi systems makes the data transmission of this type of solution usually inefficient

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