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A kind of uplink channel interference coordination method, base station and centralized equipment

A coordination method and channel interference technology, applied in the field of communication, can solve problems such as small signal attenuation, uncoordinated frequency domain, and high interference power

Active Publication Date: 2018-10-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, the network topology is no longer peer-to-peer Macro (macro cell)-Macro (macro cell), but Pico (pico cell) and Macro (macro cell) cells are using the same frequency, and Pico is completely under Macro, and the edge of Macro The high interference uplink power will run through the Pico (whether it is the edge of the Pico or the center of the Pico), and the path loss to the Pico is even smaller than that to the Macro itself. coordination

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  • A kind of uplink channel interference coordination method, base station and centralized equipment
  • A kind of uplink channel interference coordination method, base station and centralized equipment
  • A kind of uplink channel interference coordination method, base station and centralized equipment

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Embodiment Construction

[0095] In order to solve uplink interference, LTE uses ICIC technology (inter-Cell interference coordination, inter-cell interference cancellation technology) to avoid using the same frequency resource at the edge of the cell, so as to coordinate its interference from the perspective of resources, for example, scheduling RBG at the edge of a cell between neighbors ( RB group) are staggered from each other, for example, figure 1 In the shown typical neighboring cells, Cell1 (cell 1) uses RB resources of higher frequency among them, Cell2 (cell 2) uses RB resources of lower frequency, and Cell3 (cell 3) uses RB resources of other frequencies in the office. Therefore, when cells use the same frequency band, resources are staggered at the RB granularity to coordinate interference. In a Macro (macro cell) network scenario, resources can be relatively staggered (same-frequency base stations, RB levels of edge frequency bands are staggered) by using the above-mentioned ICIC technolog...

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Abstract

An uplink channel interference coordination method and a base station. A method for coordinating uplink channel interference, comprising: a first base station sends a resource interleaving request to a second base station or a centralized node, and the resource interleaving request is used to request resource interleaving; the first base station receives the second base station or the The first resource allocation information determined by the centralized node according to the resource interleaving request, the first resource allocation information includes time domain interleaving between the uplink control channel of the first base station and the uplink control channel of the second base station, and / Or the uplink data channel of the first base station and the uplink data channel of the second base station are interleaved in frequency domain or time domain; the first base station performs resource scheduling for user equipment according to the first resource allocation information. The embodiment of the present invention implements resource allocation for two interfering base stations, and implements interleaving of UE uplink resources in cells of two base stations through time domain coordination and / or frequency domain coordination, thereby reducing uplink interference between UEs.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an uplink channel interference coordination method and a base station. Background technique [0002] In a wireless communication system, a base station transmits data and / or control information to a user equipment on a downlink, and receives data and / or control information from a user equipment on an uplink. Taking the LTE (Long Term Evolution, Long Term Evolution) wireless communication system as an example, the uplink channel includes PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) and PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel). There is uplink interference between PUCCH and PUSCH in LTE, especially the uplink power of a UE located at the edge of a cell will interfere with its neighboring cells. [0003] In a wireless heterogeneous network (HetNet, Heterogeneous Network), the scenario where a macro cell (Macro cell) a...

Claims

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Application Information

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IPC IPC(8): H04W72/04
CPCH04W72/27H04W72/541
Inventor 汤斌淞陈啸
Owner HUAWEI TECH CO LTD