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Carrier transmission method, equipment and system for bearing physical downlink control channel information

A technology of physical downlink control and channel information, which is applied in the field of carrier transmission carrying physical downlink control channel information, can solve the problem of large number of blind detections and achieve the effect of reducing the number

Inactive Publication Date: 2014-07-02
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] It can be seen that in the prior art, regardless of the PDCCH placement method, the number of blind detections is large, and it is urgent to optimize

Method used

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  • Carrier transmission method, equipment and system for bearing physical downlink control channel information
  • Carrier transmission method, equipment and system for bearing physical downlink control channel information
  • Carrier transmission method, equipment and system for bearing physical downlink control channel information

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] In the embodiment of the present invention, according to the channel condition of the carrier, a corresponding relationship is established between the carrier carrying the cross-carrier PDCCH information and the carrier indicated by the cross-carrier PDCCH information, that is, it is clear that a certain (some) cross-carrier PDCCH information is only placed in a certain (some) determined carrier transmission, thereby reducing the number of times of blind detection.

[0036] figure 2 It is a schematic flowchart of a carrier transmission method for carrying PDCCH information according to an embodiment of the present invention.

[0037] Such as figure 2 As shown, the method includes:

[0038] Step 201: According to the channe...

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Abstract

The embodiment of the invention discloses a carrier transmission method for bearing physical downlink control channel (PDCCH) information. The method comprises the following steps of: determining a corresponding relationship between a carrier for bearing cross-carrier PDCCH information and a carrier indicated by the cross-carrier PDCCH information according to the channel conditions of carriers; and acquiring the determined corresponding relationship through control signaling and receiving the cross-carrier PDCCH information according to the corresponding relationship by user equipment. The embodiment of the invention also discloses a carrier transmission system for bearing the PDCCH information, a base station and the user equipment. After the embodiment of the invention is applied, the blind detection times can be remarkably reduced.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, and more specifically, to a carrier transmission method, device and system for carrying physical downlink control channel (Physical Downlink Control Channel, PDCCH) information. Background technique [0002] With the development of mobile communication technology, user traffic and data throughput are increasing continuously, and the third generation mobile communication system can no longer fully meet the needs of users. Therefore, the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) is committed to using 3GPP Long Term Evolution (Long Term Evolution, LTE) as the evolution of the 3G system. In order to achieve higher data rates, lower latency, improved system capacity and coverage, technologies that require carrier aggregation are urgently needed. [0003] So far, in the design of carrier aggregation PDCCH, option 1b is reserved. The core idea is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04W48/12H04B7/26
Inventor 王军徐晓东胡南
Owner CHINA MOBILE COMM GRP CO LTD