Descending control information processing method

An information processing method and technology for controlling information, which are applied in the field of downlink control information processing to achieve the effects of improving scheduling flexibility and throughput and reducing the number of blind detections

Active Publication Date: 2009-04-08
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Considering that there is a need for a technology in the related art to solve the problem of the transmission method of the downlink control information carried in the PDCCH in the LTE-Ad

Method used

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  • Descending control information processing method
  • Descending control information processing method
  • Descending control information processing method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0035] According to an embodiment of the present invention, a method for processing downlink control information is provided.

[0036] It should be noted that, for the convenience of description, the technical solutions of the method embodiments of the present invention are shown and described below in the form of steps, and the steps shown below can be executed in a computer system such as a set of computer-executable instructions implement. Although a logical order is shown in the associated figures, in some cases the steps shown or described may be performed in an order different from that herein.

[0037] figure 2 is a flowchart of a method for processing downlink control information according to an embodiment of the present invention, such as figure 2 As shown, the method includes the following steps (step S202 to step S204):

[0038] Step S202, setting a master physical downlink control channel and at least one slave physical downlink control channel belonging to th...

example 1

[0050] Figure 3a A schematic diagram showing the indication of the primary PDCCH and the secondary PDCCH shown in Example 1, as shown in Figure 3a As shown, the primary PDCCH is located on component carrier3, and the primary PDCCH separately carries the parameter information of multiple secondary PDCCHs belonging to the primary PDCCH for each downlink carrier unit. In this figure, there are secondary PDCCHs on component carrier2, componentcarrier3 and component carrier5 , and the secondary PDCCHs on component carrier2, component carrier3, and component carrier5 carry the downlink control information of their respective carrier components.

[0051] After the LTE-Advanced terminal obtains the parameter information of each secondary PDCCH carried in the primary PDCCH through blind detection, the LTE-Advanced terminal detects the secondary PDCCH on component carrier2, component carrier3 and component carrier5 according to the instruction of the parameter information, and detects...

example 2

[0054] Figure 3b A schematic diagram showing the indication of the primary PDCCH and the secondary PDCCH shown in Example 2, as shown in Figure 3b As shown, the primary PDCCH is located on component carrier3, and the primary PDCCH separately indicates the parameter information of multiple secondary PDCCHs belonging to the primary PDCCH for each downlink carrier unit. In this figure, there are secondary PDCCHs on component carrier3 and componentcarrier5, and component The secondary PDCCH on carrier3 and component carrier5 can carry downlink control information of multiple carrier components, for example, the secondary PDCCH on component carrier3 carries the downlink control information on component carrier1, component carrier2 and component carrier3, and the secondary PDCCH on component carrier5 carries component Downlink control information on carrier4 and component carrier5.

[0055] After the LTE-Advanced terminal obtains the parameter information of each secondary PDCCH ...

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PUM

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Abstract

The invention discloses a downlink control information processing method which comprises: a master physical downlink control channel on a carrier unit supported by a terminal and at least one slave physical downlink control channel attributive to the master physical downlink control channel are set; wherein, the master physical downlink control channel is used for carrying the reference information of the slave physical downlink control channel; the reference information comprises at least one of the following: the position information of the slave physical downlink control channel, the format information of the slave physical downlink control channel and all the downlink control information of the slave physical downlink control channel for carrying the terminal. A transmitting method for the downlink control information in an LTE-Advanced system is provided by the invention; compared with the prior art, the downlink control information processing method can compatible with LTE-Advanced and LTE Release-8, improves the dispatching flexibility and the throughput of the LTE-Advanced system and reduces the blind detection times of the terminal.

Description

technical field [0001] The present invention relates to the communication field, in particular to a downlink control information processing method. Background technique [0002] FIG. 1 shows a schematic diagram of a frame structure of a Frequency Division Duplex (FDD) mode and a Time Division Duplex (TDD) mode in a Long Term Evolution (LTE) system. [0003] Such as Figure 1a As shown, in the frame structure of FDD mode, a 10ms wireless frame (radio frame) includes twenty time slots (slots) with a length of 0.5ms, and the numbers of the time slots are 0-19 in sequence, wherein the time slot 2i and 2i+1 form a subframe (subframe) i with a length of 1 ms. [0004] As shown in Figure 1b, in the frame structure of TDD mode, a 10ms radio frame includes two half frames (half frames) with a length of 5ms, wherein a half frame includes five subframes with a length of 1ms, and subframe i It is defined as two time slots 2i and 2i+1 with a length of 0.5ms. [0005] In the above two ...

Claims

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Application Information

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IPC IPC(8): H04B7/005H04B7/26
CPCH04W48/12
Inventor 李卫军戴博郁光辉罗宇民
Owner ZTE CORP
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