A data transmission control method and device in a cognitive network

Abstract

Embodiments of the present invention provide a method and device for controlling data transmission in a cognitive network, which relate to the communication field and can effectively improve the throughput rate of the primary user equipment and the throughput rate of the cognitive user equipment, while reducing the number of primary user equipment and cognitive user equipment. Interference between user equipment is known. Including: S1. Obtain the first-class throughput rate of each primary user equipment in the licensed frequency band whose occupancy detection status is "busy"; S2. Determine that the first-class throughput rate is less than the preset throughput from all the primary user equipments occupying the licensed frequency band rate of the first type of primary user equipment; S3, according to the data transmission strategy, determine the cognitive user equipment in the cognitive user network as the relay node for data transmission of the first type of primary user equipment; S4, to the first type of primary user The device sends the first notification message, and sends the second notification message to the cognitive user equipment, and repeatedly executes S3‑S4 through other primary user equipment of the first type. Used to increase throughput.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data transmission control method and device in a cognitive network. Background technique [0002] The cognitive network includes a primary user network and a cognitive user network, the primary user network includes primary user equipment, and the cognitive user network includes cognitive user equipment. Generally, the cognitive network adopts the same-frequency networking method, that is, the primary user network and the cognitive user network share all the spectrum resources authorized to the primary user network. In this type of networking scheme, the distance from the primary user network base station (eNB) For the primary user equipment of the primary user network that is far away and close to the cognitive user network base station (SC-AP), it is vulnerable to strong downlink interference from the cognitive user network base station, and the throughput rate of the primar...

AI Technical Summary

Problems solved by technology

Generally, the cognitive network adopts the same-frequency networking method, that is, the primary user network and the cognitive user network share all the spectrum resources authorized to the primary user network. In this type of networking scheme, the distance from the primary user network base station (eNB) For the primary user equipment of the primary user network that is far away and close to the cognitive user network base station (SC-AP), it is vulnerable to strong downlink interference from the cognitive user network base station, and the throughput rate of the primary user equipment is low; at the same time, Since the transmit power of the base station of the cognitive user network is generally much smaller than that of the base station of the primary user network, the base station of the primary user network is likely to cause strong downlink interference to the cognitive user equipment of the cognitive user network, and the throughput rate of the cognitive user equipment is low

Images