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Shared search space method under enhanced carrier aggregation, base station and user equipment

A technology of search space and user equipment, applied to the allocation between users/terminals, multiple use of transmission paths, separation devices of transmission paths, etc., can solve problems such as implementation complexity, reduce the number of blind detection times, and reduce the size , the effect of reducing the number of

Inactive Publication Date: 2016-08-17
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Apparently this poses a big challenge to the implementation complexity of the UE

Method used

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  • Shared search space method under enhanced carrier aggregation, base station and user equipment
  • Shared search space method under enhanced carrier aggregation, base station and user equipment
  • Shared search space method under enhanced carrier aggregation, base station and user equipment

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Embodiment Construction

[0029] The present invention provides a method for sending a physical control channel (PDCCH) / enhanced physical control channel (EPDCCH) based on a user-specific search space when a base station communicates with user equipment on multiple serving cells. Correspondingly, the present invention also provides a PDCCH / EPDCCH receiving and decoding method of the user equipment corresponding to the sending method.

[0030] It should be noted that the present invention should not be limited to the specific examples described below. In addition, for the sake of brevity, detailed descriptions of known technologies that are not directly related to the present invention are omitted to prevent confusion to the understanding of the present invention.

[0031]In the following, the LTE mobile communication system and its subsequent evolution versions are taken as an example application environment, and multiple embodiments according to the present invention are described in detail. However,...

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Abstract

The invention provides a communication method in a base station and a corresponding base station. The method comprises steps: the base station and the user equipment communicate on multiple service cells, and a search space sharing indicator is configured for multiple cells; the base station sends a physical downlink control channel PDCCH / an enhanced physical downlink control channel EPDCCH based on user equipment specific search space to the user equipment, wherein in a condition in which the user equipment is configured with a carrier indication field CIF or an enhanced carrier indication field ECIF and is configured with the shared search space, the position of a candidate bit of a control channel element CCE of the PDCCH / an enhanced control channel element ECCE of the EPDCCH which needs to be detected by each service cell configured to be the shared search space in the entire search space is decided by the cell identifier of another service cell configured to share the search space with the service cell. Correspondingly, the invention also provides a communication method in the user equipment and corresponding user equipment.

Description

technical field [0001] The invention relates to the technical field of wireless communication. More specifically, the present invention relates to a resource configuration method for inter-device communication, a base station and user equipment. Background technique [0002] The modern wireless mobile communication system presents two notable features. One is high broadband speed. For example, the bandwidth of the fourth-generation wireless mobile communication system can reach 100MHz, and the downlink rate can reach as high as 1Gbps; , online navigation and other emerging businesses. These two characteristics put forward higher requirements for wireless mobile communication technology, mainly including: ultra-high-speed wireless transmission, inter-regional interference suppression, reliable signal transmission during movement, distributed / centralized signal processing, etc. In the future enhanced fourth-generation (4G) and fifth-generation (5G) wireless mobile communicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
CPCH04L5/001H04L5/0053H04L5/0094H04W72/23H04L5/0037H04W52/146
Inventor 骆喆蒋琦山田升平
Owner SHANGHAI JIAO TONG UNIV
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