37 results about "Partial frequency reuse" patented technology

An apparatus, system, and method for mitigating interference caused by mobile relay nodes in a heterogeneous network are described. The technique applies fractional frequency reuse and power steered beamforming to mitigate this interference.

Provided is a micro base station to be used in a heterogeneous cellular network. The micro base station has resources including frequency bands and time slots and being available for a user to use. The heterogeneous cellular network includes a plurality of base stations including a macro base station and the micro base station. The micro base station includes: an information acquiring part configured to acquire configuration information and load information of the micro base station, and to acquire configuration information and load information of a neighboring base station adjacent to the micro base station from the neighboring base station; and a resource selection part configured to select a part of the resources from the resources to provide the selected part of the resources to the user based on the configuration information and the load information of the micro base station and the neighboring base station.

The invention provides an emergency communication network deployment method, and an emergency communication base station. The method comprises the following steps: acquiring a frequency reuse scheme adopted by a public communication network area where an emergency communication network to be deployed is located; in case of a fractional frequency reuse deployment scheme, acquiring cell deployment information of the public communication network area where the emergency communication network to be deployed is located, and carrying out numbering of cells; acquiring area division information in the fractional frequency reuse deployment scheme for the numbered cells in the public communication network area; acquiring a frequency band division scheme and a power distribution scheme in the fractional frequency reuse deployment scheme; determining an overlapped area (or overlapped areas) of the emergency communication network to be deployed and the cells in the public communication network area according to a deployment area of the emergency communication network; and according to the overlapped area(s) of the emergency communication network to be deployed and the cells in the public communication network area, distributing a corresponding frequency band (or corresponding frequency bands) and a corresponding power value (or corresponding power values) for the deployment area of the emergency communication network.

The present invention relates to a low-complexity cognitive-based home base station spectrum resource allocation method, which belongs to the field of wireless communication. The method includes: the macro cell layer of the network divides the macro cell into a central area and an edge area by using a method of partial frequency reuse , the central area uses the entire spectrum, and the edge areas use three orthogonal sub-bands of the spectrum; the home base station adopts a polling mechanism to sequentially allocate resources to the home users in the home cell, and the home users use the entire frequency band; the home base station is isolated When performing resource allocation, the base station only needs to consider the interference of the users in the macro cell to the home cell; otherwise, in addition to considering the interference of the macro cell users, resource block allocation also considers the overlapping area with the home cell where the home base station Nj is located Interference from users in a home cell. The method proposed by the invention has low complexity, is easy to operate, effectively avoids interference, and improves frequency spectrum utilization efficiency.

The invention discloses an interference suppression method based on fractional frequency reuse and joint transmission in a heterogeneous network. The interference suppression method mainly solves the problems that interference exists in a heterogeneous network and edge user throughput capacity is low in the heterogeneous network. The interference suppression method includes the steps that (1) cell models are established, namely, each cell is composed of three sectors, a macro base station is arranged at the center of each cell, and two micro base stations are arranged in each sector; (2) fractional frequency reuse is used for assigning frequency resources to each base station; (3) when a new user having access to the network is a micro base station user or a central macro base station user or a macro base station non-CoMP user, a service base station of the new user provides service for the new user independently; (4) when a user having access to the network is a macro base station cooperative user, a service base station of the new user and a cooperative base station of the new user perform joint transmission on the new user. The interference suppression method effectively suppresses interference in each cell and between the adjacent cells, improves the frequency utilization rate and the throughput capacity of cell edge users, and can be used for transmission in the heterogeneous network.

A method for acquiring FFR power pattern of Frequency Partitions (FPs) at a mobile station (MS) in a wireless communication system using Fractional Frequency Reuse (FFR) is disclosed. The method includes receiving a preamble from a base station (BS); and acquiring a FFR power pattern for a reuse-1 partition and reuse-N partitions using the received preamble, wherein the FFR power pattern is determined based on a segment identifier (ID), the reuse-N partitions include N frequency partitions, each frequency partition has a power level with a range of FP1_power level to FPN_power level, a power-boosted FP in the reuse-N partitions is a partition whose power level is the FP1_power level.