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A transmission method and device for control signaling

A technology for controlling signaling and transmission methods, applied in the field of communication, can solve problems such as PDCCH capacity limitation, achieve the effects of solving PDCCH capacity limitation, improving throughput, and increasing user scheduling

Inactive Publication Date: 2016-11-30
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a control signaling transmission method and device, by transmitting the control signaling of the mobile station configured in the open-loop multi-antenna transmission mode in the data area to solve the problem of limited PDCCH capacity

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  • A transmission method and device for control signaling
  • A transmission method and device for control signaling
  • A transmission method and device for control signaling

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Embodiment 1

[0031] image 3 It is a flowchart of a control signaling transmission method provided by Embodiment 1 of the present invention. Please refer to image 3 , the method includes:

[0032] Step 301: the base station sends a control signaling to a mobile station configured in an open-loop multi-antenna (MIMO) mode to send location indication information;

[0033] Wherein, the control signaling transmission position indication information is used to indicate the transmission position of the control signaling, where the transmission position may be in the control area, that is, the traditional PDCCH area, or in the data area, that is, the traditional PDSCH area.

[0034] Step 302: If the transmission position of the control signaling indicated by the control signaling transmission position indication information is located in the data area, the base station adopts open-loop multi-antenna (MIMO, Multiple Input Multiple Output) or transmit diversity (TxD, transmit diversity) to sen...

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Abstract

Embodiments of the present invention provide a method and device for transmitting control signaling, the method comprising: a base station sends control signaling transmission location indication information to a mobile station configured in an open-loop multi-antenna mode; if the control signaling transmits If the sending location of the control signaling indicated by the location indication information is located in the data area, the base station sends the control signaling in the data area by using an open-loop multi-antenna or transmit diversity mode. Through the method and device of the embodiment of the present invention, when the number of mobile stations that need to be scheduled in a cell increases, resulting in an increase in the scheduling information that needs to be sent in a subframe, the control of the mobile station that is configured as an open-loop multi-antenna transmission mode Signaling is transmitted in the data area, which increases user scheduling, thereby improving system throughput and solving the problem of limited PDCCH capacity.

Description

technical field [0001] The present invention relates to the communication field, in particular to a control signaling transmission method and device. Background technique [0002] In a Long Term Evolution (LTE, Long Term Evolution) system, a physical downlink control channel (PDCCH, physical downlink control channel) is used to transmit control information, including downlink scheduling information (DL-Grant), uplink scheduling information (UL-Grant), power control information, etc. The specific signaling transmitted in the PDCCH is called downlink control information (DCI, downlink control information). The base station multiplexes the PDCCHs of all mobile stations in the cell and sends them in the first few OFDM symbols of a subframe, and the latter OFDM symbols are used to send the PDSCHs of the mobile stations. The area where the PDCCH is sent is called the control area. The area of ​​the PDSCH is called a data area. Currently, a maximum of 3 OFDM symbols can be used ...

Claims

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Application Information

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IPC IPC(8): H04B7/06
Inventor 张元涛王轶张翼周华
Owner FUJITSU LTD
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