Method and system for transmitting downlink control information (DCI), access equipment and user equipment (UE)

A technology for controlling information and user equipment, applied in the directions of wireless communication, electrical components, etc., can solve the problems of reducing UE control signaling overhead and limited control channel capacity, etc.

Active Publication Date: 2012-11-21
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] Embodiments of the present invention provide a method, access device, user equipment and system for transmitting downlink control information, which can solve the problem of limited control channel capacity when transmitting DCI, so that the transmission of DCI will not be restricted by the capacity of the control channel is limited, so that the overhead of UE control signaling can be reduced in the control channel region

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  • Method and system for transmitting downlink control information (DCI), access equipment and user equipment (UE)
  • Method and system for transmitting downlink control information (DCI), access equipment and user equipment (UE)
  • Method and system for transmitting downlink control information (DCI), access equipment and user equipment (UE)

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions of the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] First, combine figure 1 A method 100 for transmitting DCI according to an embodiment of the present invention is described.

[0025] Such as figure 1 As shown, the method 100 includes: in S110, in the case of dividing UEs in the same cell into at least one UE group, assigning a resource area outside the control channel area to one UE group in the at least one UE group; in S120 , sending UE group-specific multicast downlink control information UM-DCI to ...

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Abstract

The embodiment of the invention provides a method and system for transmitting downlink control information (DCI), access equipment and user equipment (UE). The method includes under the condition of dividing UE in a same cell into at least one UE group, distributing a resource zone other than a control channel zone for one UE group in the at least one UE group; transmitting UE group specific multicast-DCI (UM-DCI) to the UE group through the control channel zone, to allow the UE group to determine the resource zone based on the UM-DCI; and transmitting the DCI to the UE group through the resource zone. Based on the above technical scheme, by carrying the DCI on the resource zone for transmission, the overhead of UE control signaling is reduced on the control channel zone, and the capacity of the control channel is increased. Control information for indicating the resource zone is transmitted in the control channel zone, thereby contributing to saving additional overhead caused by using a high-level signaling to indicate the resource zone.

Description

technical field [0001] The present invention relates to the field of mobile communication, and more specifically, to a method, access device, user equipment and system for transmitting downlink control information in the field of mobile communication. Background technique [0002] In 3GPP (3 rd In a Generation Partnership Project (3rd Generation Partnership Project) network, a base station can transmit downlink control signaling through a control channel region. The downlink control signaling can be divided into a cell-specific (Cell-Specific) part and a user equipment-specific (UE-Specific) part, and the user equipment-specific part includes downlink control information (Downlink Control) sent to the user equipment (User Equipment, UE). Information, DCI). The UE can determine a PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel) channel allocated to itself through the DCI sent to the UE, so as to receive service data on the PDSCH channel. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12
Inventor 倪威张佳胤倪俊夏媛
Owner HUAWEI TECH CO LTD
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