Uplink transmit power control method, base station and device for inter-base station carrier aggregation

Abstract

Embodiments of the present invention provide an uplink transmit power control method, base station, and device for inter-base station carrier aggregation. The method includes: the first base station acquires the maximum uplink transmit power allocated to the first base station by a user equipment UE, and the second A base station configures uplink transmit power for the UE according to the maximum uplink transmit power. In the method provided by the present invention, since the maximum transmit power allocated to the first base station is allocated according to the uplink resource status information of the second base station, the power allocated to each base station by the UE can be coordinated, so that the first base station can accurately allocate the power to the UE. The uplink transmission power improves the throughput of the UE while meeting the transmission power requirements of multiple base stations. Since the state of uplink resources configured by other base stations is considered among the base stations, the allocated uplink transmit power can reduce or even avoid waste, thereby improving transmission efficiency.

Description

technical field [0001] Embodiments of the present invention relate to wireless communication technologies, and in particular to an uplink transmit power control method, base station and equipment for carrier aggregation between base stations. Background technique [0002] With the development of mobile communication technologies, the 3rd Generation Partnership Project (the 3rd Generation Partnership Project, 3GPP for short) puts forward higher requirements on peak data rate and system bandwidth. In order to meet these requirements, 3GPP Long Term Evolution Advanced (LTE-A for short) introduces carrier aggregation (Carrier Aggregation, CA for short). CA can obtain larger bandwidth by aggregating multiple continuous or non-contiguous component carriers (Component Carrier, CC for short), so as to improve peak data rate and system throughput. In the carrier aggregation system, when a user equipment (User Equipment, UE) works on multiple carriers, the eNB is allowed to schedule ...

AI Technical Summary

Problems solved by technology

For inter-base station CA, after the PHR is triggered, the PHR sent by the UE in any serving cell can only be received by one of the base stations. The base station receiving the PHR does not know the uplink resource allocation of other base stations, and cannot coordinate the uplink resources of each serving cell.

As a result, the waste of transmission resources and the problem of low transmission efficiency

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