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Method, system and device for reducing interference in carrier aggregation system

A technology of carrier aggregation and carrier aggregation mode, which is used in electrical components, wireless communication, network planning, etc.

Active Publication Date: 2016-05-25
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Embodiments of the present invention provide a method, system and device for reducing interference in a carrier aggregation system, to solve the problem of eliminating interference between terminals in the carrier aggregation system

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  • Method, system and device for reducing interference in carrier aggregation system
  • Method, system and device for reducing interference in carrier aggregation system
  • Method, system and device for reducing interference in carrier aggregation system

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Embodiment Construction

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0033] In the carrier aggregation system, to eliminate the interference between terminals, considering the cost and size of the terminal, the out-of-band suppression capability of the radio frequency filter or duplexer is limited, and the in-band transmit power of the adjacent frequency band can be reduced to achieve the required The out-of-band coexistence attenuates the demand.

[0034] In the existing Rel-8 / rel-9 system, since no fallback is required to meet the system coexistence requirements, the carrier aggregation function is introduced in Rel-10 to...

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Abstract

The invention discloses a method, a system and a device for reducing interference in a carrier aggregation system. The method includes configuring terminal coexisting demand information in a carrier aggregation mode by a base station; adding coexisting demand field carrying the terminal coexisting demand information in a system broadcast message and broadcasting the system broadcast message to all terminals; or, adding coexisting demand field carrying the terminal coexisting demand information in a special signaling for carrier aggregation and sending the special signaling for carrier aggregation to the terminals subjected to carrier aggregation; and determining actual transmission power and / or the maximum uplink usable resource block quantity meeting the coexisting demand by the terminals subjected to carrier aggregation according to the received system broadcast message or the terminal coexisting demand information carried in the special signaling for carrier aggregation. By the method, the system and the device, interference among the terminals in the carrier aggregation system is reduced or eliminated easily and conveniently.

Description

Technical field [0001] The present invention relates to the field of wireless communication technology, in particular to a method, system and device for reducing interference in a carrier aggregation system. Background technique [0002] 2.6GHz is an important frequency band for Long Term Evolution (LTE) system deployment, such as figure 1 As shown, the mainstream planning scheme of 3GPP is to plan 2500-2570MHz / 2620-2690MHz for Frequency Division Duplexing (FDD) system, the frequency band number is Band7, and plan 2570-2620MHz for Time Division Duplexing (TDD) System, the frequency band number is Band38. [0003] Such as figure 1 As shown, when the FDD system and the TDD system coexist and the base stations are located in close proximity, the possible interference types include: between FDD base station (BS) and TDD base station (BS), between FDD terminal (UE) and TDD terminal (UE) , Interference between FDD base station and TDD terminal, between FDD terminal and TDD base station;...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14
Inventor 李男
Owner CHINA MOBILE COMM GRP CO LTD
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