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Method and device for processing self-interference of inter-band carrier aggregation

A technology of carrier aggregation and processing method, applied in the direction of separation device of transmission path, distribution standard, digital transmission system, etc.

Active Publication Date: 2013-03-27
射阳县农牧渔业总公司
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  • Method and device for processing self-interference of inter-band carrier aggregation
  • Method and device for processing self-interference of inter-band carrier aggregation

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Embodiment Construction

[0028] The component carriers after carrier aggregation can be divided into a primary component carrier (PCC, Primary component carrier) and a secondary component carrier (Second component carrier). After the terminal is powered on, it will initiate a random access process. The component carrier that is connected first is generally used as the main carrier, and the main carrier cannot be deactivated. In the carrier aggregation process, there is only one main carrier. After the primary carrier is determined, subcarriers are configured according to radio resource control (RRC, Radio Resource Control) on the primary carrier, and the subcarriers can be activated (active) or deactivated (deactive) according to a control command. Under certain conditions, the main carrier and the sub-carriers can be switched to each other, and the sub-carriers can also be switched to each other.

[0029] In addition, the adjacent channel products, harmonic products and intermodulation products produ...

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Abstract

The invention discloses a method for processing self-interference of inter-band carrier aggregation. The method includes that a self-interference combination set is created for a receiving frequency band in each carrier aggregation frequency band supported by equipment; and the equipment detects whether other transmission frequency bands meeting switching conditions are available or not when the receiving frequency bands are in receiving states and the equipment determines that current transmission frequency bands are in the self-interference combination sets of the receiving frequency bands, and a self-interference avoiding selection strategy is actuated according to a detection result. The invention further discloses a device for processing the self-interference of the inter-band carrier aggregation. According to the scheme, the method and the device have the advantages that the self-interference of the inter-band carrier aggregation can be prevented, and problems of influence of the self-interference of the inter-band carrier aggregation to the performance of carrier aggregation and communication loss are prevented.

Description

technical field [0001] The present invention relates to a carrier aggregation (CA, Carrier Aggregation) communication technology in an enhanced long-term evolution system (LTE-A, LTE-Advanced), in particular to a method and device for processing inter-frequency carrier aggregation self-interference. Background technique [0002] In order to meet the future peak rate requirements of the International Telecommunications Union (ITU, International Telecommunications Union), LTE-A currently supports a maximum bandwidth of 100MHz. However, it is difficult to find such a large bandwidth in the existing available spectrum resources, and large bandwidth is very important for base stations and terminals. The hardware design brings great difficulties. In addition, for spectrum resources scattered in multiple frequency bands, a technology is urgently needed to make full use of them. Based on the above considerations, LTE-A introduces the key technology of carrier aggregation. [0003]...

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Application Information

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IPC IPC(8): H04W16/14
CPCH04L5/00H04L5/006H04L5/003H04L5/001
Inventor 郭胜祥
Owner 射阳县农牧渔业总公司
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