Method and device for sending and receiving synchronous signals

Abstract

The present application provides a method and device for determining resources in a relay system. The first node determines that the first resource set is located between the first hard resource set and the second hard resource set by receiving the resource indication information sent by the upper node. symbol availability to maximize resource utilization. The method includes: the first node receives resource indication information sent by a superior node, the resource indication information is used to indicate the transmission direction of the first resource set, the first resource set is located between the first hard resource set and the second hard resource set, and the second hard resource set is located between the first hard resource set and the second hard resource set. The first hard resource set and the second hard resource set are continuous hard resources; the first node determines the first threshold x and the second threshold y according to the resource indication information; when t 3 -t 1 ≥x, and t 2 -t 4 When ≥y, the first node determines that the first symbol in the first resource set is available; the first node communicates with the upper-level node on the first symbol according to the resource indication information.

Description

technical field [0001] The present invention relates to communication technology, in particular to a method and device for determining transmission resources of a relay node in a wireless communication system. Background technique [0002] With the continuous development of mobile communication technology, spectrum resources are becoming increasingly tight. In order to improve spectrum utilization, future base station deployments will be denser. In addition, dense deployment can avoid coverage holes. Under the traditional cellular network architecture, base stations are connected to the core network through optical fibers. However, fiber optics are very expensive to deploy. A wireless relay node (relay node, RN) establishes a connection with the core network through a wireless backhaul link, which can save part of the fiber deployment cost. [0003] Generally, a wireless relay node establishes a wireless backhaul link with one or more upper-level nodes, and accesses the ...

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present application provide a method and device for determining resources in a relay system, which solves the problem of data transmission conversion between MT (mobile terminal, MT) and DU (distributed unit, DU) of IAB nodes in the relay system. , leading to excessive overhead at transition boundaries

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