Transmission method and device of downlink control signaling

A technology for controlling signaling and transmission methods, which is applied in the field of downlink control signaling transmission, can solve problems such as practical application inconvenience, and achieve the effect of ensuring detection performance and backward compatibility

Inactive Publication Date: 2009-09-23
ZTE CORP
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  • Abstract
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  • Transmission method and device of downlink control signaling
  • Transmission method and device of downlink control signaling
  • Transmission method and device of downlink control signaling

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Embodiment Construction

[0061] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0062] A method for transmitting downlink control signaling provided by the present invention, such as image 3 As shown, it mainly includes the following steps:

[0063] Step 301, the base station configures the downlink transmission mode based on the transmission of the newly added two antenna ports M and N, and configures the corresponding relationship between the downlink transmission mode and the downlink control message format DCI format;

[0064] The present invention adopts different downlink transmission mode configurations for R8 and R9 respectively, that is, the existing downlink transmission mode configuration is used for the R8 user, and the new downlink transmission mode configuration is used for the R9 user. Preferably, the configuration of mode 1 to mode 6 in R8 can be retained in R9, and mode 7 can ...

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Abstract

The invention discloses a transmission method of downlink control signaling, comprising the followings: a base configures a downlink transmission mode based on two new additional antenna ports M and N, and configures the corresponding relation between the downlink transmission mode and a downlink control information format (DCI format); and sends downlink control signaling to user equipment (UE) according to the configured corresponding relation. The invention further discloses a transmission device of downlink control signaling, thereby guaranteeing the detection performance and backward compatibility of physical downlink control channel (PDCCH) by adding or amending the existing seven types of downlink transmission modes and determining the corresponding relation between the corresponding DCI format and downlink transmission mode.

Description

technical field [0001] The present invention relates to signaling transmission technology in wireless communication, in particular to a transmission method and device for downlink control signaling. Background technique [0002] A radio frame (radio frame) in a Long Term Evolution (LTE, Long Term Evolution) system includes frame structures in a Frequency Division Duplex (FDD, Frequency Division Duplex) mode and a Time Division Duplex (TDD, Time Division Duplex) mode. The frame structure of FDD mode, such as figure 1 As shown, a wireless frame of 10 milliseconds (ms) consists of twenty slots (slots) with a length of 0.5ms and numbers 0 to 19, and slots 2i and 2i+1 form a subframe (subframe) with a length of 1ms i. The frame structure of TDD mode, such as figure 2 As shown, a 10ms radio frame consists of two half frames with a length of 5ms. A half frame includes five subframes with a length of 1ms. Subframe i is defined as two time slots with a length of 0.5ms. 2i and 2i...

Claims

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Application Information

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IPC IPC(8): H04W48/12
Inventor 戴博李卫军于辉郭阳
Owner ZTE CORP
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