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Co-frequency interference cancellation method and device, co-frequency interference detection method and device, and base station

A technology of same-frequency interference and same-frequency adjacent cells, which is applied in the field of wireless communication, can solve the problems of consuming the frequency band resources of the same-frequency adjacent cells, and the loss outweighs the gain, so as to achieve the effect of improving spectrum utilization, increasing throughput, and avoiding frequency band resources

Active Publication Date: 2016-07-20
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0005] 2. Measurement events in carrier aggregation
Therefore, the use of CoMP technology on the auxiliary carrier can effectively eliminate co-channel interference; however, CoMP technology will consume frequency band resources of co-frequency adjacent cells while eliminating downlink co-channel interference, which is often not worth the candle.

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  • Co-frequency interference cancellation method and device, co-frequency interference detection method and device, and base station
  • Co-frequency interference cancellation method and device, co-frequency interference detection method and device, and base station
  • Co-frequency interference cancellation method and device, co-frequency interference detection method and device, and base station

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Embodiment Construction

[0063] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0064] Aiming at the problem that the existing method for eliminating co-frequency interference eliminates downlink co-frequency interference, the frequency band resources of adjacent cells of the same frequency will be consumed, and the gain outweighs the gain, and a method for eliminating co-frequency interference is provided to realize the elimination of co-frequency interference At the same time, it will not consume the frequency band resources of the adjacent cells of the same frequency, effectively improving the throughput of secondary carrier users in carrier aggregation, thereby improving the spectrum utilization rate of the entire network.

[0065] Certainly, in the method for eliminating co-channel interference in the embodiment of the present i...

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Abstract

The invention provides a co-frequency interference cancellation method and device, a co-frequency interference detection method and device, and a base station, and relates to the field of wireless communication. The co-frequency interference cancellation method comprises the steps: after transmitting a query signal to user equipment (UE), receiving channel quality of a secondary component carrier (SCC) and channel quality of a co-frequency adjacent cell corresponding to the SCC, which are reported by the UE according to the query signal; according to the received channel quality of the SCC and the received channel quality of the co-frequency adjacent cell corresponding to the SCC, determining a target SCC, the co-frequency interference intensity of which is larger than a first preset threshold; according to the coordinated multipoint technology, cancelling co-frequency interference of the target SCC. By adopting the technical scheme provided by the invention, a problem that a frequency band resource of the co-frequency adjacent cell is consumed when co-frequency interference is cancelled is solved, resource waste is avoided, and throughput of an SCC subscriber in a carrier aggregation is effectively increased, so that the spectrum efficiency of a whole network is improved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method for eliminating co-channel interference, a detection method, a device and a base station. Background technique [0002] 1. Carrier aggregation technology and networking mode [0003] Carrier Aggregation (CA, CarrierAggregation) means that the base station gathers two or more component carriers (CC, ComponentCarrier; up to 5; each up to 20MHz; frequency can be next to each other or spaced apart) together for the user The device (User Equipment, referred to as UE) provides services to significantly improve the throughput of a single user. The carrier that maintains the RRC (RadioResourceControl, radio resource control) connection with the user is called the primary carrier (PCC, Primary Component Carrier) or the primary cell (Pcell, Primary cell); the carrier other than the primary carrier is called the secondary carrier (SCC, Secondary Component Carrier) ) or a sec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14H04L5/00
CPCH04W16/14
Inventor 王令斌周敬
Owner ZTE CORP
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