Inter-frequency measurements based on mobile device speed in heterogeneous networks

Abstract

Embodiments provide apparatus, methods and computer programs for mobile transceivers and base station transceivers, a mobile transceiver, a base station transceiver, and a mobile communication system. The apparatus (10) for a mobile transceiver (100) in a mobile communication system (300) comprises a base transceiver station (200; 305) for transmitting from the mobile communication system (300) on a first frequency layer Means (12) for receiving information about a periodic measurement configuration for inter-frequency measurements. The inter-frequency measurement refers to a repetitive measurement on the second frequency layer with a repetition period such that when the mobile transceiver (100) moves at a speed below a speed threshold, the mobile transceiver (100) The transmitter (100) is located in the coverage area of ​​another base transceiver station (315) on the second frequency layer for at least two repetition periods. The apparatus (10) further comprises means (14) for measuring wireless signals on a second frequency layer to obtain inter-frequency measurements based on said information about said periodic measurement configuration, and comprises means (16) for reporting information about the inter-frequency measurement to the base transceiver station (200; 305) in the mobile communication system (300) when the inter-frequency measurement result meets a threshold criterion. The base transceiver apparatus (20) comprises means (22) for providing the mobile transceiver (100) with said information on said periodic measurement configuration for said inter-frequency measurements and for receiving from The mobile transceiver (100) means (24) to receive information about the inter-frequency measurements.

Description

technical field [0001] Embodiments of the present invention relate to wireless communications, more particularly but not exclusively to inter-frequency measurements between multiple frequency layers of a mobile communication system. Background technique [0002] In mobile communication networks, heterogeneous architecture becomes more and more important. A heterogeneous network (Heterogeneous Network, HetNet) is a network utilizing cell types of different sizes, such as, for example, macro cells, pico cells and femto cells. Such a cell is established by a base transceiver station whose coverage area is determined by its transmission power and interference conditions. Picocells and femtocells are cells that have a smaller coverage area than macrocells. In some network scenarios, the coverage area of ​​a small cell may be surrounded by the coverage area of ​​a macro cell. Small cells can be deployed to expand network capacity. Regarding standardization, in the 3rd Generati...

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Problems solved by technology

Because the cells or base stations in such a network can utilize the same frequency resources, such an architecture suffers from interference caused by the overlapping coverage areas of these cells

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