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Sending and receiving method and equipment of control signaling

A technology for controlling signaling and sending methods, applied in the field of sending and receiving methods and equipment for control signaling, capable of solving problems such as inability to transmit scheduling information and limited PDCCH capacity

Active Publication Date: 2015-05-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In future versions of the LTE system, technologies such as carrier aggregation, multi-user multiple input multiple output (MIMO), and coordinated multiple points (Coordinated Multiple Points, CoMP) will be introduced. In addition, heterogeneous network scenarios will also be Widely used, these will lead to limited capacity of PDCCH, unable to transmit higher capacity scheduling information

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  • Sending and receiving method and equipment of control signaling
  • Sending and receiving method and equipment of control signaling
  • Sending and receiving method and equipment of control signaling

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Embodiment Construction

[0027] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] According to different data scheduling methods, the PDCCH may have different downlink control information (Downlink Control Information, DCI) formats, and the PDCCH payload sizes (payload sizes) corresponding to these DCI formats are generally different. The UE demodulates and decodes the PDCCH in the search space of the PDCC...

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Abstract

Provided are a method and device for sending and receiving control signalling.The sending method includes: a base station sending primary stage signalling to user equipment (UE), wherein the primary stage signalling is used for indicating the resources used by a specific reference signal-based physical downlink control channel (D-PDCCH) of the UE to enable the UE to detect the D-PDCCH according to the primary stage signalling; the D-PDCCH being located in the area of a physical downlink shared channel (PDSCH) of the UE, and the D-PDCCH being used for carrying scheduling information about the UE.The embodiments of the present invention can realize the transmission of scheduling information with a higher capacity, and the UE can determine the location of the scheduling information.

Description

technical field [0001] The present invention relates to wireless communication technology, and in particular, to a method and device for sending and receiving control signaling. Background technique [0002] In an existing Long Term Evolution (Long Term Evolution, LTE) system, the minimum time unit scheduled by a base station (eNB) is a subframe, each subframe includes two time slots, and each time slot includes 7 symbols. For a user equipment (User Equipment, UE) scheduled on a subframe, the subframe will include the physical downlink control channel (Physical Downlink Control Channel, PDCCH) of the UE, and the PDCCH can be used for downlink scheduling grants (DL_grant ) or an uplink scheduling grant (UL_grant), respectively carrying scheduling information of a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) or a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH). [0003] In the future version of the LTE system, technologies ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/12
CPCH04W72/23
Inventor 吕永霞官磊
Owner HUAWEI TECH CO LTD