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Method and equipment for controlling interference

An interference control and equipment technology, applied in the field of communication, can solve problems such as rough operation, LTE system solution to solve the interference problem, lowering the upper limit of HNB downlink transmit power, etc., so as to reduce or avoid interference and reduce the effect of impact.

Active Publication Date: 2011-05-25
SHANGHAI DATANG MOBILE COMM EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The TD-SCDMA system does not introduce the X2 interface, so it cannot learn from the solution of the LTE system to solve the interference problem; the existing solution in the TD-SCDMA system is relatively rough in the way of uplink interference detection, and does not distinguish the interference of the macro UE Time slots and other time slots, the overall downlink transmission power upper limit of all time slots of HNB is reduced, which has a great impact on the downlink performance of HNB cells

Method used

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  • Method and equipment for controlling interference

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Embodiment 1

[0028] Embodiment 1 of the present invention provides a method for interference control, such as figure 2 As shown, the method includes the following steps:

[0029] In step 201, the home base station (HNB, Femto base station, etc.) detects uplink interference, that is, the home base station detects interference information from user equipment in an uplink time slot. Wherein, the user equipment is a macro UE, that is, a UE corresponding to a macro cell.

[0030] Specifically, the home base station may determine the frequency point information and code resource usage information of the macro cell, and perform channel estimation on the macro cell according to the known midamble code of the macro cell and the above-mentioned determined frequency point information and code resource usage information of the macro cell, And according to the channel estimation result, the interference information of the uplink time slot from the macro UE is obtained.

[0031] In the embodiment of ...

Embodiment 2

[0056] Based on the same inventive concept as the above method, an interference control device is also provided in the embodiment of the present invention, such as image 3 As shown, the equipment includes:

[0057] The first determining module 11 is configured to detect uplink interference, and determine that there is uplink interference according to the detection result;

[0058] The second determination module 12 is configured to determine a downlink time slot that interferes with the user equipment;

[0059] The control module 13 is configured to perform interference control according to the interference situation of the downlink time slot.

[0060] The first determining module 11 is specifically configured to detect interference information from user equipment in an uplink time slot, and determine that there is uplink interference when it is detected that the interference value of the macro cell is greater than a preset threshold.

[0061] The first determination module...

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Abstract

The invention discloses a method and equipment for controlling interference. The method comprises the following steps: a home base station detects the uplink interference; when the uplink interference is determined to be present according to detecting results, the home base station determines a downlink slot with interference to user equipment (UE); and the home base station controls the interference according to the interference condition of the downlink slot. In the embodiments of the invention, according to the uplink interference measured from a home base station cell or the downlink interference condition measured by the HUE (home user equipment), power can be limited or resources can be adjusted for different downlink slots respectively, so as to reduce or avoid the interference to macro UE by HNB (home node B) downlink. In addition, the influence on the performance of the home base station cell can be reduced as much as possible on the basis of ensuring the performance of the macro UE.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a method and equipment for interference control. Background technique [0002] With the development of 3G (3rd-generation, third-generation mobile communication) technology, various high-speed wireless applications are constantly changing the way of life of human beings. As an area carrying a large amount of data services, how to effectively integrate fixed access and mobile broadband resources It is a problem that operators face in business operation. In order to overcome the above problems, a home base station is introduced in the prior art. The home base station is called HNB (Home NodeB), which is a wireless AP (Access Point, access point) device placed in the user's home or office. Femtocell. The home base station solves the problem of poor signal quality of indoor coverage of 2GHz wireless signals in the 3G communication system, and increases the syst...

Claims

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Application Information

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IPC IPC(8): H04W24/00H04W52/04H04W72/04
Inventor 吴央朱向前
Owner SHANGHAI DATANG MOBILE COMM EQUIP
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