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Methods for sending, receiving and transmitting downlink control information and related devices

A technology for controlling information and sending methods, applied in wireless communication, electrical components, etc., to achieve the effect of low overhead

Active Publication Date: 2012-08-01
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0043] The technical problem to be solved by the present invention is to provide a method for sending, receiving and transmitting downlink control information and related devices, so as to solve the problem of how to send, receive and monitor downlink control information in the indoor hotspot coverage scenario of LTE

Method used

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  • Methods for sending, receiving and transmitting downlink control information and related devices
  • Methods for sending, receiving and transmitting downlink control information and related devices
  • Methods for sending, receiving and transmitting downlink control information and related devices

Examples

Experimental program
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Effect test

application example 1

[0134] In the LTE or LTE-Advance indoor hotspot coverage scenario, which can also be called the LTE-LAN ​​scenario, a subframe that transmits a PDCCH, how to schedule PDSCH or PUSCH resources on other subframes or other serving cells (serving cells) (The serving cell may also be referred to as a component carrier), which has the following configuration:

[0135] Configuration one:

[0136] The PDCCH on the subframe can continuously schedule PDSCH or PUSCH resources on n subframes including itself.

[0137] The n is a positive integer greater than 1.

[0138] Configuration two:

[0139] The PDCCH on the subframe may schedule PDSCH or PUSCH resources of other n serving cells including its own serving cell on this subframe.

[0140] The n is a positive integer greater than 1, which is notified by high-layer signaling.

[0141] Configuration three:

[0142] The PDCCH on the subframe can schedule the PDSCH or PUSCH resources of other m serving cells including its own serving c...

application example 2

[0145] A transmission mode is newly defined, which is used for the user terminal UE in the LTE-LAN ​​network to perform corresponding PDCCH monitoring, receive PDSCH data and send PUSCH data.

[0146] When the user terminal UE accesses the LTE-LAN ​​network, the UE is semi-statically set to the transmission mode X through high-layer signaling, and the preferred value of X is 10. The transmission mode corresponds to DCI format Y, and the preferred value of Y is 5, which is used to represent the transmission of up to 8 layers.

[0147] For DCI format Y, the information transmitted in the corresponding DCI can be:

[0148] method one:

[0149] DCI includes resource block allocation information and modulation and coding scheme information, which are used to indicate one or more serving cells and / or PDSCH resources or PUSCH resources scheduled on one or more subframes, that is, each serving cell and / or each The same resource block allocation information and modulation and coding ...

application example 3

[0160] Two transmission modes are newly defined, which are used for the LTE-LAN ​​network user terminal UE to perform corresponding PDCCH monitoring, receive PDSCH data and send PUSCH data.

[0161] When the user terminal UE accesses the LTE-LAN ​​network, the UE is semi-statically set to transmission modes X1 and X2 through high-layer signaling, and the preferred values ​​of X1 and X2 are 10 and 11. The transmission mode corresponds to DCI format Y1 and DCI format Y2, and the preferred values ​​of Y1 and Y2 are 5 and 6, which are used to represent the transmission of up to 8 layers.

[0162] When the UE is semi-statically set to the transmission mode X1 through high-level signaling, its corresponding DCI format Y1 is only used to schedule its own subframe and PDSCH resources on the serving cell.

[0163] When the UE is semi-statically set to the transmission mode X2 through high-layer signaling, its corresponding DCI format Y2 method for scheduling PDSCH resources is as in th...

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Abstract

The invention discloses methods for sending, receiving and transmitting downlink control information (DCI) and related devices. More specifically, the sending method comprises: a base station sends DCI to user equipment (UE) on a subframe through a physical downlink control channel (PDCCH), wherein downlink control information carried by one PDCCH is used for scheduling a physical downlink shared channel (PDSCH) and a physical uplink shared channel (PUSCH) according to one or more of the following modes: scheduling a plurality of PDSCHs; scheduling a plurality of PUSCHs; scheduling one PDSCH, which is transmitted on multiple continuous subframes; and scheduling one PDSCH, which is transmitted on multiple continuous subframes. According to the invention, sending, receiving and monitoring of DCI are carried out in the scene of indoor hotspot coverage of long term evolution (LTE); and moreover, transmission with low cost, rapid rate and high reliability is realized.

Description

technical field [0001] The present invention relates to the field of mobile wireless communication, in particular to a method for sending, receiving and transmitting downlink control information in a wireless communication system and related devices. 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 ...

Claims

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Application Information

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IPC IPC(8): H04W72/12
Inventor 吴欣戴博郁光辉郝鹏夏树强梁春丽许进方惠英段灿
Owner ZTE CORP
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