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Method and base station (BS) for transmitting SI (system information) based on carrier indication in public search intervals

A technology of carrier indication and common search, applied in the direction of digital transmission system, error prevention, electrical components, etc., can solve the problem of reducing the number of blind decodings in common search intervals, reducing the number of blind decodings, improving system reliability, and reducing the number of resources Effect

Inactive Publication Date: 2014-04-30
深圳市恒程汇文化科技有限公司
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Problems solved by technology

[0006] The main purpose of the present invention is to provide a method and base station for sending SI by carrier indication in the public search interval in a heterogeneous network, so as to solve the capacity problem after scrambling of CIF and control channel in the public search interval, and reduce the blindness in the public search interval. decoding number

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  • Method and base station (BS) for transmitting SI (system information) based on carrier indication in public search intervals
  • Method and base station (BS) for transmitting SI (system information) based on carrier indication in public search intervals
  • Method and base station (BS) for transmitting SI (system information) based on carrier indication in public search intervals

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Embodiment Construction

[0061] The solution of the embodiment of the present invention is mainly: by forming carrier / resource block grouping and priority comparison threshold, send CIF and SI by time multiplexing to the part with strong interference to improve its reliability, and for the part with weak interference, The CIF and SI are sent in a manner of scrambling with the control channel, which effectively reduces the number of resources in the common search interval and the number of blind decodings occupied by the scrambled CIF and SI in the common search interval.

[0062] Such as figure 1 As shown, an embodiment of the present invention proposes a method for sending SI by carrier indication within a common search interval, including:

[0063] Step S1, the base station groups the REs occupied by the component carriers of the UE according to the preset priority of the component carriers;

[0064] Wherein, the priority of the constituent carriers is preset according to the interference status of...

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Abstract

The invention relates to a method and a base station (BS) for transmitting SI (system information) based on carrier indication in public search intervals. The method comprises the following steps: according to preset priority of constituent carrier, grouping REs (resource elements) occupied by the constituent carrier of UE (user equipment) by the BS; receiving the interference condition of the RE groups of the constituent carrier fed back by the UE; according to the interference condition of the RE groups, setting a comparison threshold for correlation among a CIF (carrier indicator field), the constituent carrier and the SI; and according to the interference condition of the RE groups and the comparison threshold for correlation, indicating the UE to transmit the CIF and the SI by time multiplexing and other modes for a strong interference part, and indicating the UE to transmit the CIF and the SI by a control channel scrambling mode for a weak interference part. The method and the BS have the advantages that the quantity of resource in the public search intervals occupied by the scrambled CIF and SI is obviously reduced on the premise of ensuring effective coverage of a control channel and the SI, and meanwhile the blind decoding number is lowered and the system reliability is improved.

Description

technical field [0001] The present invention relates to the field of wireless communication networks, in particular to a method for sending SI by carrier indication in a common search interval in a heterogeneous network and a base station. Background technique [0002] In the next-generation broadband wireless communication network, how to support larger bandwidth under the bandwidth of the current wireless communication system has become a key factor in improving the throughput of user equipment (UE) between cells and the average throughput of user terminals and face severe challenges. [0003] At present, in the long-term evolution technology (Long Term Evolution, LTE) of the third generation partnership project, it is proposed to adopt the method of carrier aggregation to effectively support a larger bandwidth in the current wireless communication system to meet the requirements of the new generation wireless communication system. The requirements for indicators such as ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/12H04W72/10H04L5/00H04L1/00
Inventor 魏巍
Owner 深圳市恒程汇文化科技有限公司
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