Signal uplink transmission method in relay device of wireless network based on relay

Abstract

The invention provides an signal uplink transmission method and a corresponding transmission device in a relay equipment which is based on a relay wireless network, the relay equipment is taken as the relay equipment of the final jump, the method comprises the steps of receiving signals to be transmitted which is from a mobile terminal; adopting the collaboration space multiplexing transmission mode with other one or more relay equipments as the final jump to send the signals to be transmitted to a base station. The method further includes the step of receiving control signals from a base station, the control signals include identification information, and the identification information includes pilot frequency information and resource allocation information. The invention also provides an auxiliary control uplink transmission method and a corresponding auxiliary control device in the base station which is based on the relay wireless network, the method controls a plurality of relay equipments which are taken as the final jump to adopt the collaboration space multiplexing transmission mode to send the signals to be transmitted to the base station. The transmission device and the auxiliary control device can be respectively applied in the relay equipments and the base station, thereby enhancing the transmission capacity of the final jump.

Description

technical field [0001] The present invention relates to a wireless network system, in particular to a method and a corresponding device for uplink transmission of signals in a relay device of a relay-based wireless network system. Background technique [0002] At present, wireless communication technology is developing rapidly, and the capacity and speed of communication are also showing a rising trend. Multiple-input multiple-output technology (MIMO) has been widely used due to its advantages of high capacity and high data rate. The flexible use of MIMO technology can improve the capacity and data rate of the uplink transmission of the wireless network system with relays. [0003] In the uplink of the relay-based wireless network system, the transmission capacity of the last hop close to the base station (BS) becomes more and more the bottleneck of the uplink capacity, because the service data will be gradually transferred from the last hop closest to the mobile terminal (M...

AI Technical Summary

Problems solved by technology

Obviously, this transmission method is not effective enough, because although the two relay devices have received the information to be transmitted, they cannot transmit to the base station at the same speed as the mobile terminal transmits information to the relay device in the last hop, Therefore, its transmission capacity cannot support the simultaneous transmission of the first hop, thus, the capacity of the uplink is limited

Although this is a relatively simple example, it can be understood through this example that similar problems still exist in more complex applications, such as multi-hop and multi-relay situations, and the situation will be more serious

[0005] In order to obtain a higher data rate or better connection quality, other solutions can also be adopted, such as installing multiple antennas on the mobile terminal, or installing multiple antennas on the relay device at the same time, but in this case the relay-based The wireless network system will face more difficulties, for example, at least as follows: when the mobile terminal is equipped with multiple antennas, a higher data rate can be obtained through space diversity or other transmission methods, but this will lead to the failure of the last hop The bottleneck becomes more and more serious, and the uplink capacity of the entire wireless network will not be increased

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