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Method and device for processing inter-frequency carrier aggregation self-interference

A technology of carrier aggregation and processing method, which is applied in the directions of separation device of transmission path, allocation standard, sub-channel allocation of transmission path, etc.

Active Publication Date: 2018-03-02
射阳县农牧渔业总公司
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  • Abstract
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  • Method and device for processing inter-frequency carrier aggregation self-interference
  • Method and device for processing inter-frequency carrier aggregation self-interference

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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 processing method for inter-frequency carrier aggregation self-interference, which establishes a self-interference combination set for the receiving frequency band in each carrier aggregation frequency band supported by the device; when the receiving frequency band is in the receiving state and the device determines that the current transmitting frequency band is in the When the self-interference combinations of the receiving frequency bands are concentrated, the device detects whether there are other transmitting frequency bands that meet the switching conditions, and executes the self-interference avoidance selection strategy according to the detection results; the present invention also discloses a processing device for inter-frequency carrier aggregation self-interference According to the solution of the present invention, self-interference of inter-frequency carrier aggregation can be avoided, and the self-interference of inter-frequency carrier aggregation can be prevented from affecting the performance of carrier aggregation and causing communication loss.

Description

technical field [0001] The present invention relates to a carrier aggregation (CA, CarrierAggregation) 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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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14
CPCH04L5/001H04L5/003H04L5/006
Inventor 郭胜祥
Owner 射阳县农牧渔业总公司
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